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[RFC PATCH 23/78] target/arm: add fallthrough pseudo-keyword
|
From: |
Emmanouil Pitsidianakis |
|
Subject: |
[RFC PATCH 23/78] target/arm: add fallthrough pseudo-keyword |
|
Date: |
Fri, 13 Oct 2023 10:47:27 +0300 |
In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.
Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
---
target/arm/helper.c | 34 +++++++-------
target/arm/ptw.c | 10 ++--
target/arm/tcg/psci.c | 2 +-
target/arm/tcg/translate-a64.c | 76 +++++++++++++++----------------
target/arm/tcg/translate-m-nocp.c | 2 +-
target/arm/tcg/translate-vfp.c | 2 +-
target/arm/tcg/translate.c | 8 ++--
7 files changed, 68 insertions(+), 66 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 74fbb6e1d7..e2d1426cf4 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -2507,42 +2507,42 @@ static CPAccessResult gt_counter_access(CPUARMState
*env, int timeridx,
static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx,
bool isread)
{
unsigned int cur_el = arm_current_el(env);
bool has_el2 = arm_is_el2_enabled(env);
uint64_t hcr = arm_hcr_el2_eff(env);
switch (cur_el) {
case 0:
if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
/* If HCR_EL2.<E2H,TGE> == '11': check CNTHCTL_EL2.EL0[PV]TEN. */
return (extract32(env->cp15.cnthctl_el2, 9 - timeridx, 1)
? CP_ACCESS_OK : CP_ACCESS_TRAP_EL2);
}
/*
* CNT[PV]_CVAL, CNT[PV]_CTL, CNT[PV]_TVAL: not visible from
* EL0 if EL0[PV]TEN is zero.
*/
if (!extract32(env->cp15.c14_cntkctl, 9 - timeridx, 1)) {
return CP_ACCESS_TRAP;
}
- /* fall through */
+ fallthrough;
case 1:
if (has_el2 && timeridx == GTIMER_PHYS) {
if (hcr & HCR_E2H) {
/* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PTEN. */
if (!extract32(env->cp15.cnthctl_el2, 11, 1)) {
return CP_ACCESS_TRAP_EL2;
}
} else {
/* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */
if (!extract32(env->cp15.cnthctl_el2, 1, 1)) {
return CP_ACCESS_TRAP_EL2;
}
}
}
break;
}
return CP_ACCESS_OK;
}
@@ -3573,69 +3573,69 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t
value,
static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
{
#ifdef CONFIG_TCG
MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD;
uint64_t par64;
ARMMMUIdx mmu_idx;
int el = arm_current_el(env);
ARMSecuritySpace ss = arm_security_space(env);
switch (ri->opc2 & 6) {
case 0:
/* stage 1 current state PL1: ATS1CPR, ATS1CPW, ATS1CPRP, ATS1CPWP */
switch (el) {
case 3:
mmu_idx = ARMMMUIdx_E3;
break;
case 2:
g_assert(ss != ARMSS_Secure); /* ARMv8.4-SecEL2 is 64-bit only */
- /* fall through */
+ fallthrough;
case 1:
if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) {
mmu_idx = ARMMMUIdx_Stage1_E1_PAN;
} else {
mmu_idx = ARMMMUIdx_Stage1_E1;
}
break;
default:
g_assert_not_reached();
}
break;
case 2:
/* stage 1 current state PL0: ATS1CUR, ATS1CUW */
switch (el) {
case 3:
mmu_idx = ARMMMUIdx_E10_0;
break;
case 2:
g_assert(ss != ARMSS_Secure); /* ARMv8.4-SecEL2 is 64-bit only */
mmu_idx = ARMMMUIdx_Stage1_E0;
break;
case 1:
mmu_idx = ARMMMUIdx_Stage1_E0;
break;
default:
g_assert_not_reached();
}
break;
case 4:
/* stage 1+2 NonSecure PL1: ATS12NSOPR, ATS12NSOPW */
mmu_idx = ARMMMUIdx_E10_1;
ss = ARMSS_NonSecure;
break;
case 6:
/* stage 1+2 NonSecure PL0: ATS12NSOUR, ATS12NSOUW */
mmu_idx = ARMMMUIdx_E10_0;
ss = ARMSS_NonSecure;
break;
default:
g_assert_not_reached();
}
par64 = do_ats_write(env, value, access_type, mmu_idx, ss);
A32_BANKED_CURRENT_REG_SET(env, par, par64);
#else
/* Handled by hardware accelerator. */
g_assert_not_reached();
#endif /* CONFIG_TCG */
}
@@ -4649,21 +4649,21 @@ static const ARMCPRegInfo ssbs_reginfo = {
static CPAccessResult aa64_cacheop_poc_access(CPUARMState *env,
const ARMCPRegInfo *ri,
bool isread)
{
/* Cache invalidate/clean to Point of Coherency or Persistence... */
switch (arm_current_el(env)) {
case 0:
/* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */
if (!(arm_sctlr(env, 0) & SCTLR_UCI)) {
return CP_ACCESS_TRAP;
}
- /* fall through */
+ fallthrough;
case 1:
/* ... EL1 must trap to EL2 if HCR_EL2.TPCP is set. */
if (arm_hcr_el2_eff(env) & HCR_TPCP) {
return CP_ACCESS_TRAP_EL2;
}
break;
}
return CP_ACCESS_OK;
}
@@ -4671,19 +4671,19 @@ static CPAccessResult
aa64_cacheop_poc_access(CPUARMState *env,
static CPAccessResult do_cacheop_pou_access(CPUARMState *env, uint64_t
hcrflags)
{
/* Cache invalidate/clean to Point of Unification... */
switch (arm_current_el(env)) {
case 0:
/* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */
if (!(arm_sctlr(env, 0) & SCTLR_UCI)) {
return CP_ACCESS_TRAP;
}
- /* fall through */
+ fallthrough;
case 1:
/* ... EL1 must trap to EL2 if relevant HCR_EL2 flags are set. */
if (arm_hcr_el2_eff(env) & hcrflags) {
return CP_ACCESS_TRAP_EL2;
}
break;
}
return CP_ACCESS_OK;
}
@@ -6741,107 +6741,107 @@ static const ARMCPRegInfo minimal_ras_reginfo[] = {
/*
* Return the exception level to which exceptions should be taken
* via SVEAccessTrap. This excludes the check for whether the exception
* should be routed through AArch64.AdvSIMDFPAccessTrap. That can easily
* be found by testing 0 < fp_exception_el < sve_exception_el.
*
* C.f. the ARM pseudocode function CheckSVEEnabled. Note that the
* pseudocode does *not* separate out the FP trap checks, but has them
* all in one function.
*/
int sve_exception_el(CPUARMState *env, int el)
{
#ifndef CONFIG_USER_ONLY
if (el <= 1 && !el_is_in_host(env, el)) {
switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, ZEN)) {
case 1:
if (el != 0) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
return 1;
}
}
if (el <= 2 && arm_is_el2_enabled(env)) {
/* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */
if (env->cp15.hcr_el2 & HCR_E2H) {
switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, ZEN)) {
case 1:
if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
return 2;
}
} else {
if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TZ)) {
return 2;
}
}
}
/* CPTR_EL3. Since EZ is negative we must check for EL3. */
if (arm_feature(env, ARM_FEATURE_EL3)
&& !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, EZ)) {
return 3;
}
#endif
return 0;
}
/*
* Return the exception level to which exceptions should be taken for SME.
* C.f. the ARM pseudocode function CheckSMEAccess.
*/
int sme_exception_el(CPUARMState *env, int el)
{
#ifndef CONFIG_USER_ONLY
if (el <= 1 && !el_is_in_host(env, el)) {
switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, SMEN)) {
case 1:
if (el != 0) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
return 1;
}
}
if (el <= 2 && arm_is_el2_enabled(env)) {
/* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */
if (env->cp15.hcr_el2 & HCR_E2H) {
switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, SMEN)) {
case 1:
if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
return 2;
}
} else {
if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TSM)) {
return 2;
}
}
}
/* CPTR_EL3. Since ESM is negative we must check for EL3. */
if (arm_feature(env, ARM_FEATURE_EL3)
&& !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, ESM)) {
return 3;
}
#endif
return 0;
}
/*
* Given that SVE is enabled, return the vector length for EL.
*/
@@ -9678,182 +9678,182 @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const
ARMCPRegInfo *r,
void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu,
const ARMCPRegInfo *r, void *opaque)
{
/*
* Define implementations of coprocessor registers.
* We store these in a hashtable because typically
* there are less than 150 registers in a space which
* is 16*16*16*8*8 = 262144 in size.
* Wildcarding is supported for the crm, opc1 and opc2 fields.
* If a register is defined twice then the second definition is
* used, so this can be used to define some generic registers and
* then override them with implementation specific variations.
* At least one of the original and the second definition should
* include ARM_CP_OVERRIDE in its type bits -- this is just a guard
* against accidental use.
*
* The state field defines whether the register is to be
* visible in the AArch32 or AArch64 execution state. If the
* state is set to ARM_CP_STATE_BOTH then we synthesise a
* reginfo structure for the AArch32 view, which sees the lower
* 32 bits of the 64 bit register.
*
* Only registers visible in AArch64 may set r->opc0; opc0 cannot
* be wildcarded. AArch64 registers are always considered to be 64
* bits; the ARM_CP_64BIT* flag applies only to the AArch32 view of
* the register, if any.
*/
int crm, opc1, opc2;
int crmmin = (r->crm == CP_ANY) ? 0 : r->crm;
int crmmax = (r->crm == CP_ANY) ? 15 : r->crm;
int opc1min = (r->opc1 == CP_ANY) ? 0 : r->opc1;
int opc1max = (r->opc1 == CP_ANY) ? 7 : r->opc1;
int opc2min = (r->opc2 == CP_ANY) ? 0 : r->opc2;
int opc2max = (r->opc2 == CP_ANY) ? 7 : r->opc2;
CPState state;
/* 64 bit registers have only CRm and Opc1 fields */
assert(!((r->type & ARM_CP_64BIT) && (r->opc2 || r->crn)));
/* op0 only exists in the AArch64 encodings */
assert((r->state != ARM_CP_STATE_AA32) || (r->opc0 == 0));
/* AArch64 regs are all 64 bit so ARM_CP_64BIT is meaningless */
assert((r->state != ARM_CP_STATE_AA64) || !(r->type & ARM_CP_64BIT));
/*
* This API is only for Arm's system coprocessors (14 and 15) or
* (M-profile or v7A-and-earlier only) for implementation defined
* coprocessors in the range 0..7. Our decode assumes this, since
* 8..13 can be used for other insns including VFP and Neon. See
* valid_cp() in translate.c. Assert here that we haven't tried
* to use an invalid coprocessor number.
*/
switch (r->state) {
case ARM_CP_STATE_BOTH:
/* 0 has a special meaning, but otherwise the same rules as AA32. */
if (r->cp == 0) {
break;
}
- /* fall through */
+ fallthrough;
case ARM_CP_STATE_AA32:
if (arm_feature(&cpu->env, ARM_FEATURE_V8) &&
!arm_feature(&cpu->env, ARM_FEATURE_M)) {
assert(r->cp >= 14 && r->cp <= 15);
} else {
assert(r->cp < 8 || (r->cp >= 14 && r->cp <= 15));
}
break;
case ARM_CP_STATE_AA64:
assert(r->cp == 0 || r->cp == CP_REG_ARM64_SYSREG_CP);
break;
default:
g_assert_not_reached();
}
/*
* The AArch64 pseudocode CheckSystemAccess() specifies that op1
* encodes a minimum access level for the register. We roll this
* runtime check into our general permission check code, so check
* here that the reginfo's specified permissions are strict enough
* to encompass the generic architectural permission check.
*/
if (r->state != ARM_CP_STATE_AA32) {
CPAccessRights mask;
switch (r->opc1) {
case 0:
/* min_EL EL1, but some accessible to EL0 via kernel ABI */
mask = PL0U_R | PL1_RW;
break;
case 1: case 2:
/* min_EL EL1 */
mask = PL1_RW;
break;
case 3:
/* min_EL EL0 */
mask = PL0_RW;
break;
case 4:
case 5:
/* min_EL EL2 */
mask = PL2_RW;
break;
case 6:
/* min_EL EL3 */
mask = PL3_RW;
break;
case 7:
/* min_EL EL1, secure mode only (we don't check the latter) */
mask = PL1_RW;
break;
default:
/* broken reginfo with out-of-range opc1 */
g_assert_not_reached();
}
/* assert our permissions are not too lax (stricter is fine) */
assert((r->access & ~mask) == 0);
}
/*
* Check that the register definition has enough info to handle
* reads and writes if they are permitted.
*/
if (!(r->type & (ARM_CP_SPECIAL_MASK | ARM_CP_CONST))) {
if (r->access & PL3_R) {
assert((r->fieldoffset ||
(r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) ||
r->readfn);
}
if (r->access & PL3_W) {
assert((r->fieldoffset ||
(r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) ||
r->writefn);
}
}
for (crm = crmmin; crm <= crmmax; crm++) {
for (opc1 = opc1min; opc1 <= opc1max; opc1++) {
for (opc2 = opc2min; opc2 <= opc2max; opc2++) {
for (state = ARM_CP_STATE_AA32;
state <= ARM_CP_STATE_AA64; state++) {
if (r->state != state && r->state != ARM_CP_STATE_BOTH) {
continue;
}
if (state == ARM_CP_STATE_AA32) {
/*
* Under AArch32 CP registers can be common
* (same for secure and non-secure world) or banked.
*/
char *name;
switch (r->secure) {
case ARM_CP_SECSTATE_S:
case ARM_CP_SECSTATE_NS:
add_cpreg_to_hashtable(cpu, r, opaque, state,
r->secure, crm, opc1, opc2,
r->name);
break;
case ARM_CP_SECSTATE_BOTH:
name = g_strdup_printf("%s_S", r->name);
add_cpreg_to_hashtable(cpu, r, opaque, state,
ARM_CP_SECSTATE_S,
crm, opc1, opc2, name);
g_free(name);
add_cpreg_to_hashtable(cpu, r, opaque, state,
ARM_CP_SECSTATE_NS,
crm, opc1, opc2, r->name);
break;
default:
g_assert_not_reached();
}
} else {
/*
* AArch64 registers get mapped to non-secure instance
* of AArch32
*/
add_cpreg_to_hashtable(cpu, r, opaque, state,
ARM_CP_SECSTATE_NS,
crm, opc1, opc2, r->name);
}
}
}
}
}
}
/* Define a whole list of registers */
@@ -10609,79 +10609,79 @@ void aarch64_sync_64_to_32(CPUARMState *env)
static void take_aarch32_exception(CPUARMState *env, int new_mode,
uint32_t mask, uint32_t offset,
uint32_t newpc)
{
int new_el;
/* Change the CPU state so as to actually take the exception. */
switch_mode(env, new_mode);
/*
* For exceptions taken to AArch32 we must clear the SS bit in both
* PSTATE and in the old-state value we save to SPSR_<mode>, so zero it
now.
*/
env->pstate &= ~PSTATE_SS;
env->spsr = cpsr_read(env);
/* Clear IT bits. */
env->condexec_bits = 0;
/* Switch to the new mode, and to the correct instruction set. */
env->uncached_cpsr = (env->uncached_cpsr & ~CPSR_M) | new_mode;
/* This must be after mode switching. */
new_el = arm_current_el(env);
/* Set new mode endianness */
env->uncached_cpsr &= ~CPSR_E;
if (env->cp15.sctlr_el[new_el] & SCTLR_EE) {
env->uncached_cpsr |= CPSR_E;
}
/* J and IL must always be cleared for exception entry */
env->uncached_cpsr &= ~(CPSR_IL | CPSR_J);
env->daif |= mask;
if (cpu_isar_feature(aa32_ssbs, env_archcpu(env))) {
if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_32) {
env->uncached_cpsr |= CPSR_SSBS;
} else {
env->uncached_cpsr &= ~CPSR_SSBS;
}
}
if (new_mode == ARM_CPU_MODE_HYP) {
env->thumb = (env->cp15.sctlr_el[2] & SCTLR_TE) != 0;
env->elr_el[2] = env->regs[15];
} else {
/* CPSR.PAN is normally preserved preserved unless... */
if (cpu_isar_feature(aa32_pan, env_archcpu(env))) {
switch (new_el) {
case 3:
if (!arm_is_secure_below_el3(env)) {
/* ... the target is EL3, from non-secure state. */
env->uncached_cpsr &= ~CPSR_PAN;
break;
}
/* ... the target is EL3, from secure state ... */
- /* fall through */
+ fallthrough;
case 1:
/* ... the target is EL1 and SCTLR.SPAN is 0. */
if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPAN)) {
env->uncached_cpsr |= CPSR_PAN;
}
break;
}
}
/*
* this is a lie, as there was no c1_sys on V4T/V5, but who cares
* and we should just guard the thumb mode on V4
*/
if (arm_feature(env, ARM_FEATURE_V4T)) {
env->thumb =
(A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_TE) != 0;
}
env->regs[14] = env->regs[15] + offset;
}
env->regs[15] = newpc;
if (tcg_enabled()) {
arm_rebuild_hflags(env);
}
}
@@ -10689,90 +10689,91 @@ static void take_aarch32_exception(CPUARMState *env,
int new_mode,
static void arm_cpu_do_interrupt_aarch32_hyp(CPUState *cs)
{
/*
* Handle exception entry to Hyp mode; this is sufficiently
* different to entry to other AArch32 modes that we handle it
* separately here.
*
* The vector table entry used is always the 0x14 Hyp mode entry point,
* unless this is an UNDEF/SVC/HVC/abort taken from Hyp to Hyp.
* The offset applied to the preferred return address is always zero
* (see DDI0487C.a section G1.12.3).
* PSTATE A/I/F masks are set based only on the SCR.EA/IRQ/FIQ values.
*/
uint32_t addr, mask;
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
switch (cs->exception_index) {
case EXCP_UDEF:
addr = 0x04;
break;
case EXCP_SWI:
addr = 0x08;
break;
case EXCP_BKPT:
/* Fall through to prefetch abort. */
+ fallthrough;
case EXCP_PREFETCH_ABORT:
env->cp15.ifar_s = env->exception.vaddress;
qemu_log_mask(CPU_LOG_INT, "...with HIFAR 0x%x\n",
(uint32_t)env->exception.vaddress);
addr = 0x0c;
break;
case EXCP_DATA_ABORT:
env->cp15.dfar_s = env->exception.vaddress;
qemu_log_mask(CPU_LOG_INT, "...with HDFAR 0x%x\n",
(uint32_t)env->exception.vaddress);
addr = 0x10;
break;
case EXCP_IRQ:
addr = 0x18;
break;
case EXCP_FIQ:
addr = 0x1c;
break;
case EXCP_HVC:
addr = 0x08;
break;
case EXCP_HYP_TRAP:
addr = 0x14;
break;
default:
cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index);
}
if (cs->exception_index != EXCP_IRQ && cs->exception_index != EXCP_FIQ) {
if (!arm_feature(env, ARM_FEATURE_V8)) {
/*
* QEMU syndrome values are v8-style. v7 has the IL bit
* UNK/SBZP for "field not valid" cases, where v8 uses RES1.
* If this is a v7 CPU, squash the IL bit in those cases.
*/
if (cs->exception_index == EXCP_PREFETCH_ABORT ||
(cs->exception_index == EXCP_DATA_ABORT &&
!(env->exception.syndrome & ARM_EL_ISV)) ||
syn_get_ec(env->exception.syndrome) == EC_UNCATEGORIZED) {
env->exception.syndrome &= ~ARM_EL_IL;
}
}
env->cp15.esr_el[2] = env->exception.syndrome;
}
if (arm_current_el(env) != 2 && addr < 0x14) {
addr = 0x14;
}
mask = 0;
if (!(env->cp15.scr_el3 & SCR_EA)) {
mask |= CPSR_A;
}
if (!(env->cp15.scr_el3 & SCR_IRQ)) {
mask |= CPSR_I;
}
if (!(env->cp15.scr_el3 & SCR_FIQ)) {
mask |= CPSR_F;
}
addr += env->cp15.hvbar;
take_aarch32_exception(env, ARM_CPU_MODE_HYP, mask, 0, addr);
}
@@ -10780,175 +10781,176 @@ static void
arm_cpu_do_interrupt_aarch32_hyp(CPUState *cs)
static void arm_cpu_do_interrupt_aarch32(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
uint32_t addr;
uint32_t mask;
int new_mode;
uint32_t offset;
uint32_t moe;
/* If this is a debug exception we must update the DBGDSCR.MOE bits */
switch (syn_get_ec(env->exception.syndrome)) {
case EC_BREAKPOINT:
case EC_BREAKPOINT_SAME_EL:
moe = 1;
break;
case EC_WATCHPOINT:
case EC_WATCHPOINT_SAME_EL:
moe = 10;
break;
case EC_AA32_BKPT:
moe = 3;
break;
case EC_VECTORCATCH:
moe = 5;
break;
default:
moe = 0;
break;
}
if (moe) {
env->cp15.mdscr_el1 = deposit64(env->cp15.mdscr_el1, 2, 4, moe);
}
if (env->exception.target_el == 2) {
arm_cpu_do_interrupt_aarch32_hyp(cs);
return;
}
switch (cs->exception_index) {
case EXCP_UDEF:
new_mode = ARM_CPU_MODE_UND;
addr = 0x04;
mask = CPSR_I;
if (env->thumb) {
offset = 2;
} else {
offset = 4;
}
break;
case EXCP_SWI:
new_mode = ARM_CPU_MODE_SVC;
addr = 0x08;
mask = CPSR_I;
/* The PC already points to the next instruction. */
offset = 0;
break;
case EXCP_BKPT:
/* Fall through to prefetch abort. */
+ fallthrough;
case EXCP_PREFETCH_ABORT:
A32_BANKED_CURRENT_REG_SET(env, ifsr, env->exception.fsr);
A32_BANKED_CURRENT_REG_SET(env, ifar, env->exception.vaddress);
qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x IFAR 0x%x\n",
env->exception.fsr, (uint32_t)env->exception.vaddress);
new_mode = ARM_CPU_MODE_ABT;
addr = 0x0c;
mask = CPSR_A | CPSR_I;
offset = 4;
break;
case EXCP_DATA_ABORT:
A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr);
A32_BANKED_CURRENT_REG_SET(env, dfar, env->exception.vaddress);
qemu_log_mask(CPU_LOG_INT, "...with DFSR 0x%x DFAR 0x%x\n",
env->exception.fsr,
(uint32_t)env->exception.vaddress);
new_mode = ARM_CPU_MODE_ABT;
addr = 0x10;
mask = CPSR_A | CPSR_I;
offset = 8;
break;
case EXCP_IRQ:
new_mode = ARM_CPU_MODE_IRQ;
addr = 0x18;
/* Disable IRQ and imprecise data aborts. */
mask = CPSR_A | CPSR_I;
offset = 4;
if (env->cp15.scr_el3 & SCR_IRQ) {
/* IRQ routed to monitor mode */
new_mode = ARM_CPU_MODE_MON;
mask |= CPSR_F;
}
break;
case EXCP_FIQ:
new_mode = ARM_CPU_MODE_FIQ;
addr = 0x1c;
/* Disable FIQ, IRQ and imprecise data aborts. */
mask = CPSR_A | CPSR_I | CPSR_F;
if (env->cp15.scr_el3 & SCR_FIQ) {
/* FIQ routed to monitor mode */
new_mode = ARM_CPU_MODE_MON;
}
offset = 4;
break;
case EXCP_VIRQ:
new_mode = ARM_CPU_MODE_IRQ;
addr = 0x18;
/* Disable IRQ and imprecise data aborts. */
mask = CPSR_A | CPSR_I;
offset = 4;
break;
case EXCP_VFIQ:
new_mode = ARM_CPU_MODE_FIQ;
addr = 0x1c;
/* Disable FIQ, IRQ and imprecise data aborts. */
mask = CPSR_A | CPSR_I | CPSR_F;
offset = 4;
break;
case EXCP_VSERR:
{
/*
* Note that this is reported as a data abort, but the DFAR
* has an UNKNOWN value. Construct the SError syndrome from
* AET and ExT fields.
*/
ARMMMUFaultInfo fi = { .type = ARMFault_AsyncExternal, };
if (extended_addresses_enabled(env)) {
env->exception.fsr = arm_fi_to_lfsc(&fi);
} else {
env->exception.fsr = arm_fi_to_sfsc(&fi);
}
env->exception.fsr |= env->cp15.vsesr_el2 & 0xd000;
A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr);
qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x\n",
env->exception.fsr);
new_mode = ARM_CPU_MODE_ABT;
addr = 0x10;
mask = CPSR_A | CPSR_I;
offset = 8;
}
break;
case EXCP_SMC:
new_mode = ARM_CPU_MODE_MON;
addr = 0x08;
mask = CPSR_A | CPSR_I | CPSR_F;
offset = 0;
break;
default:
cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index);
return; /* Never happens. Keep compiler happy. */
}
if (new_mode == ARM_CPU_MODE_MON) {
addr += env->cp15.mvbar;
} else if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) {
/* High vectors. When enabled, base address cannot be remapped. */
addr += 0xffff0000;
} else {
/*
* ARM v7 architectures provide a vector base address register to remap
* the interrupt vector table.
* This register is only followed in non-monitor mode, and is banked.
* Note: only bits 31:5 are valid.
*/
addr += A32_BANKED_CURRENT_REG_GET(env, vbar);
}
if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON) {
env->cp15.scr_el3 &= ~SCR_NS;
}
take_aarch32_exception(env, new_mode, mask, offset, addr);
}
@@ -11056,209 +11058,209 @@ static bool syndrome_is_sync_extabt(uint32_t
syndrome)
/* Handle exception entry to a target EL which is using AArch64 */
static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
unsigned int new_el = env->exception.target_el;
target_ulong addr = env->cp15.vbar_el[new_el];
unsigned int new_mode = aarch64_pstate_mode(new_el, true);
unsigned int old_mode;
unsigned int cur_el = arm_current_el(env);
int rt;
if (tcg_enabled()) {
/*
* Note that new_el can never be 0. If cur_el is 0, then
* el0_a64 is is_a64(), else el0_a64 is ignored.
*/
aarch64_sve_change_el(env, cur_el, new_el, is_a64(env));
}
if (cur_el < new_el) {
/*
* Entry vector offset depends on whether the implemented EL
* immediately lower than the target level is using AArch32 or AArch64
*/
bool is_aa64;
uint64_t hcr;
switch (new_el) {
case 3:
is_aa64 = (env->cp15.scr_el3 & SCR_RW) != 0;
break;
case 2:
hcr = arm_hcr_el2_eff(env);
if ((hcr & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
is_aa64 = (hcr & HCR_RW) != 0;
break;
}
- /* fall through */
+ fallthrough;
case 1:
is_aa64 = is_a64(env);
break;
default:
g_assert_not_reached();
}
if (is_aa64) {
addr += 0x400;
} else {
addr += 0x600;
}
} else if (pstate_read(env) & PSTATE_SP) {
addr += 0x200;
}
switch (cs->exception_index) {
case EXCP_GPC:
qemu_log_mask(CPU_LOG_INT, "...with MFAR 0x%" PRIx64 "\n",
env->cp15.mfar_el3);
- /* fall through */
+ fallthrough;
case EXCP_PREFETCH_ABORT:
case EXCP_DATA_ABORT:
/*
* FEAT_DoubleFault allows synchronous external aborts taken to EL3
* to be taken to the SError vector entrypoint.
*/
if (new_el == 3 && (env->cp15.scr_el3 & SCR_EASE) &&
syndrome_is_sync_extabt(env->exception.syndrome)) {
addr += 0x180;
}
env->cp15.far_el[new_el] = env->exception.vaddress;
qemu_log_mask(CPU_LOG_INT, "...with FAR 0x%" PRIx64 "\n",
env->cp15.far_el[new_el]);
- /* fall through */
+ fallthrough;
case EXCP_BKPT:
case EXCP_UDEF:
case EXCP_SWI:
case EXCP_HVC:
case EXCP_HYP_TRAP:
case EXCP_SMC:
switch (syn_get_ec(env->exception.syndrome)) {
case EC_ADVSIMDFPACCESSTRAP:
/*
* QEMU internal FP/SIMD syndromes from AArch32 include the
* TA and coproc fields which are only exposed if the exception
* is taken to AArch32 Hyp mode. Mask them out to get a valid
* AArch64 format syndrome.
*/
env->exception.syndrome &= ~MAKE_64BIT_MASK(0, 20);
break;
case EC_CP14RTTRAP:
case EC_CP15RTTRAP:
case EC_CP14DTTRAP:
/*
* For a trap on AArch32 MRC/MCR/LDC/STC the Rt field is currently
* the raw register field from the insn; when taking this to
* AArch64 we must convert it to the AArch64 view of the register
* number. Notice that we read a 4-bit AArch32 register number and
* write back a 5-bit AArch64 one.
*/
rt = extract32(env->exception.syndrome, 5, 4);
rt = aarch64_regnum(env, rt);
env->exception.syndrome = deposit32(env->exception.syndrome,
5, 5, rt);
break;
case EC_CP15RRTTRAP:
case EC_CP14RRTTRAP:
/* Similarly for MRRC/MCRR traps for Rt and Rt2 fields */
rt = extract32(env->exception.syndrome, 5, 4);
rt = aarch64_regnum(env, rt);
env->exception.syndrome = deposit32(env->exception.syndrome,
5, 5, rt);
rt = extract32(env->exception.syndrome, 10, 4);
rt = aarch64_regnum(env, rt);
env->exception.syndrome = deposit32(env->exception.syndrome,
10, 5, rt);
break;
}
env->cp15.esr_el[new_el] = env->exception.syndrome;
break;
case EXCP_IRQ:
case EXCP_VIRQ:
addr += 0x80;
break;
case EXCP_FIQ:
case EXCP_VFIQ:
addr += 0x100;
break;
case EXCP_VSERR:
addr += 0x180;
/* Construct the SError syndrome from IDS and ISS fields. */
env->exception.syndrome = syn_serror(env->cp15.vsesr_el2 & 0x1ffffff);
env->cp15.esr_el[new_el] = env->exception.syndrome;
break;
default:
cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index);
}
if (is_a64(env)) {
old_mode = pstate_read(env);
aarch64_save_sp(env, arm_current_el(env));
env->elr_el[new_el] = env->pc;
} else {
old_mode = cpsr_read_for_spsr_elx(env);
env->elr_el[new_el] = env->regs[15];
aarch64_sync_32_to_64(env);
env->condexec_bits = 0;
}
env->banked_spsr[aarch64_banked_spsr_index(new_el)] = old_mode;
qemu_log_mask(CPU_LOG_INT, "...with ELR 0x%" PRIx64 "\n",
env->elr_el[new_el]);
if (cpu_isar_feature(aa64_pan, cpu)) {
/* The value of PSTATE.PAN is normally preserved, except when ... */
new_mode |= old_mode & PSTATE_PAN;
switch (new_el) {
case 2:
/* ... the target is EL2 with HCR_EL2.{E2H,TGE} == '11' ... */
if ((arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE))
!= (HCR_E2H | HCR_TGE)) {
break;
}
- /* fall through */
+ fallthrough;
case 1:
/* ... the target is EL1 ... */
/* ... and SCTLR_ELx.SPAN == 0, then set to 1. */
if ((env->cp15.sctlr_el[new_el] & SCTLR_SPAN) == 0) {
new_mode |= PSTATE_PAN;
}
break;
}
}
if (cpu_isar_feature(aa64_mte, cpu)) {
new_mode |= PSTATE_TCO;
}
if (cpu_isar_feature(aa64_ssbs, cpu)) {
if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_64) {
new_mode |= PSTATE_SSBS;
} else {
new_mode &= ~PSTATE_SSBS;
}
}
pstate_write(env, PSTATE_DAIF | new_mode);
env->aarch64 = true;
aarch64_restore_sp(env, new_el);
if (tcg_enabled()) {
helper_rebuild_hflags_a64(env, new_el);
}
env->pc = addr;
qemu_log_mask(CPU_LOG_INT, "...to EL%d PC 0x%" PRIx64 " PSTATE 0x%x\n",
new_el, env->pc, pstate_read(env));
}
/*
* Do semihosting call and set the appropriate return value. All the
* permission and validity checks have been done at translate time.
*
* We only see semihosting exceptions in TCG only as they are not
* trapped to the hypervisor in KVM.
*/
#ifdef CONFIG_TCG
@@ -11909,111 +11911,111 @@ uint32_t HELPER(crc32c)(uint32_t acc, uint32_t val,
uint32_t bytes)
/*
* Return the exception level to which FP-disabled exceptions should
* be taken, or 0 if FP is enabled.
*/
int fp_exception_el(CPUARMState *env, int cur_el)
{
#ifndef CONFIG_USER_ONLY
uint64_t hcr_el2;
/*
* CPACR and the CPTR registers don't exist before v6, so FP is
* always accessible
*/
if (!arm_feature(env, ARM_FEATURE_V6)) {
return 0;
}
if (arm_feature(env, ARM_FEATURE_M)) {
/* CPACR can cause a NOCP UsageFault taken to current security state */
if (!v7m_cpacr_pass(env, env->v7m.secure, cur_el != 0)) {
return 1;
}
if (arm_feature(env, ARM_FEATURE_M_SECURITY) && !env->v7m.secure) {
if (!extract32(env->v7m.nsacr, 10, 1)) {
/* FP insns cause a NOCP UsageFault taken to Secure */
return 3;
}
}
return 0;
}
hcr_el2 = arm_hcr_el2_eff(env);
/*
* The CPACR controls traps to EL1, or PL1 if we're 32 bit:
* 0, 2 : trap EL0 and EL1/PL1 accesses
* 1 : trap only EL0 accesses
* 3 : trap no accesses
* This register is ignored if E2H+TGE are both set.
*/
if ((hcr_el2 & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
int fpen = FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, FPEN);
switch (fpen) {
case 1:
if (cur_el != 0) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
/* Trap from Secure PL0 or PL1 to Secure PL1. */
if (!arm_el_is_aa64(env, 3)
&& (cur_el == 3 || arm_is_secure_below_el3(env))) {
return 3;
}
if (cur_el <= 1) {
return 1;
}
break;
}
}
/*
* The NSACR allows A-profile AArch32 EL3 and M-profile secure mode
* to control non-secure access to the FPU. It doesn't have any
* effect if EL3 is AArch64 or if EL3 doesn't exist at all.
*/
if ((arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) &&
cur_el <= 2 && !arm_is_secure_below_el3(env))) {
if (!extract32(env->cp15.nsacr, 10, 1)) {
/* FP insns act as UNDEF */
return cur_el == 2 ? 2 : 1;
}
}
/*
* CPTR_EL2 is present in v7VE or v8, and changes format
* with HCR_EL2.E2H (regardless of TGE).
*/
if (cur_el <= 2) {
if (hcr_el2 & HCR_E2H) {
switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, FPEN)) {
case 1:
if (cur_el != 0 || !(hcr_el2 & HCR_TGE)) {
break;
}
- /* fall through */
+ fallthrough;
case 0:
case 2:
return 2;
}
} else if (arm_is_el2_enabled(env)) {
if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TFP)) {
return 2;
}
}
}
/* CPTR_EL3 : present in v8 */
if (FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, TFP)) {
/* Trap all FP ops to EL3 */
return 3;
}
#endif
return 0;
}
/* Return the exception level we're running at if this is our mmu_idx */
diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index 95db9ec4c3..3f6783c100 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -2240,192 +2240,192 @@ static bool pmsav7_use_background_region(ARMCPU *cpu,
ARMMMUIdx mmu_idx,
static bool get_phys_addr_pmsav7(CPUARMState *env,
S1Translate *ptw,
uint32_t address,
MMUAccessType access_type,
GetPhysAddrResult *result,
ARMMMUFaultInfo *fi)
{
ARMCPU *cpu = env_archcpu(env);
int n;
ARMMMUIdx mmu_idx = ptw->in_mmu_idx;
bool is_user = regime_is_user(env, mmu_idx);
bool secure = arm_space_is_secure(ptw->in_space);
result->f.phys_addr = address;
result->f.lg_page_size = TARGET_PAGE_BITS;
result->f.prot = 0;
if (regime_translation_disabled(env, mmu_idx, ptw->in_space) ||
m_is_ppb_region(env, address)) {
/*
* MPU disabled or M profile PPB access: use default memory map.
* The other case which uses the default memory map in the
* v7M ARM ARM pseudocode is exception vector reads from the vector
* table. In QEMU those accesses are done in arm_v7m_load_vector(),
* which always does a direct read using address_space_ldl(), rather
* than going via this function, so we don't need to check that here.
*/
get_phys_addr_pmsav7_default(env, mmu_idx, address, &result->f.prot);
} else { /* MPU enabled */
for (n = (int)cpu->pmsav7_dregion - 1; n >= 0; n--) {
/* region search */
uint32_t base = env->pmsav7.drbar[n];
uint32_t rsize = extract32(env->pmsav7.drsr[n], 1, 5);
uint32_t rmask;
bool srdis = false;
if (!(env->pmsav7.drsr[n] & 0x1)) {
continue;
}
if (!rsize) {
qemu_log_mask(LOG_GUEST_ERROR,
"DRSR[%d]: Rsize field cannot be 0\n", n);
continue;
}
rsize++;
rmask = (1ull << rsize) - 1;
if (base & rmask) {
qemu_log_mask(LOG_GUEST_ERROR,
"DRBAR[%d]: 0x%" PRIx32 " misaligned "
"to DRSR region size, mask = 0x%" PRIx32 "\n",
n, base, rmask);
continue;
}
if (address < base || address > base + rmask) {
/*
* Address not in this region. We must check whether the
* region covers addresses in the same page as our address.
* In that case we must not report a size that covers the
* whole page for a subsequent hit against a different MPU
* region or the background region, because it would result in
* incorrect TLB hits for subsequent accesses to addresses that
* are in this MPU region.
*/
if (ranges_overlap(base, rmask,
address & TARGET_PAGE_MASK,
TARGET_PAGE_SIZE)) {
result->f.lg_page_size = 0;
}
continue;
}
/* Region matched */
if (rsize >= 8) { /* no subregions for regions < 256 bytes */
int i, snd;
uint32_t srdis_mask;
rsize -= 3; /* sub region size (power of 2) */
snd = ((address - base) >> rsize) & 0x7;
srdis = extract32(env->pmsav7.drsr[n], snd + 8, 1);
srdis_mask = srdis ? 0x3 : 0x0;
for (i = 2; i <= 8 && rsize < TARGET_PAGE_BITS; i *= 2) {
/*
* This will check in groups of 2, 4 and then 8, whether
* the subregion bits are consistent. rsize is incremented
* back up to give the region size, considering consistent
* adjacent subregions as one region. Stop testing if rsize
* is already big enough for an entire QEMU page.
*/
int snd_rounded = snd & ~(i - 1);
uint32_t srdis_multi = extract32(env->pmsav7.drsr[n],
snd_rounded + 8, i);
if (srdis_mask ^ srdis_multi) {
break;
}
srdis_mask = (srdis_mask << i) | srdis_mask;
rsize++;
}
}
if (srdis) {
continue;
}
if (rsize < TARGET_PAGE_BITS) {
result->f.lg_page_size = rsize;
}
break;
}
if (n == -1) { /* no hits */
if (!pmsav7_use_background_region(cpu, mmu_idx, secure, is_user)) {
/* background fault */
fi->type = ARMFault_Background;
return true;
}
get_phys_addr_pmsav7_default(env, mmu_idx, address,
&result->f.prot);
} else { /* a MPU hit! */
uint32_t ap = extract32(env->pmsav7.dracr[n], 8, 3);
uint32_t xn = extract32(env->pmsav7.dracr[n], 12, 1);
if (m_is_system_region(env, address)) {
/* System space is always execute never */
xn = 1;
}
if (is_user) { /* User mode AP bit decoding */
switch (ap) {
case 0:
case 1:
case 5:
break; /* no access */
case 3:
result->f.prot |= PAGE_WRITE;
- /* fall through */
+ fallthrough;
case 2:
case 6:
result->f.prot |= PAGE_READ | PAGE_EXEC;
break;
case 7:
/* for v7M, same as 6; for R profile a reserved value */
if (arm_feature(env, ARM_FEATURE_M)) {
result->f.prot |= PAGE_READ | PAGE_EXEC;
break;
}
- /* fall through */
+ fallthrough;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"DRACR[%d]: Bad value for AP bits: 0x%"
PRIx32 "\n", n, ap);
}
} else { /* Priv. mode AP bits decoding */
switch (ap) {
case 0:
break; /* no access */
case 1:
case 2:
case 3:
result->f.prot |= PAGE_WRITE;
- /* fall through */
+ fallthrough;
case 5:
case 6:
result->f.prot |= PAGE_READ | PAGE_EXEC;
break;
case 7:
/* for v7M, same as 6; for R profile a reserved value */
if (arm_feature(env, ARM_FEATURE_M)) {
result->f.prot |= PAGE_READ | PAGE_EXEC;
break;
}
- /* fall through */
+ fallthrough;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"DRACR[%d]: Bad value for AP bits: 0x%"
PRIx32 "\n", n, ap);
}
}
/* execute never */
if (xn) {
result->f.prot &= ~PAGE_EXEC;
}
}
}
fi->type = ARMFault_Permission;
fi->level = 1;
return !(result->f.prot & (1 << access_type));
}
@@ -3269,136 +3269,136 @@ static bool get_phys_addr_twostage(CPUARMState *env,
S1Translate *ptw,
static bool get_phys_addr_nogpc(CPUARMState *env, S1Translate *ptw,
target_ulong address,
MMUAccessType access_type,
GetPhysAddrResult *result,
ARMMMUFaultInfo *fi)
{
ARMMMUIdx mmu_idx = ptw->in_mmu_idx;
ARMMMUIdx s1_mmu_idx;
/*
* The page table entries may downgrade Secure to NonSecure, but
* cannot upgrade a NonSecure translation regime's attributes
* to Secure or Realm.
*/
result->f.attrs.space = ptw->in_space;
result->f.attrs.secure = arm_space_is_secure(ptw->in_space);
switch (mmu_idx) {
case ARMMMUIdx_Phys_S:
case ARMMMUIdx_Phys_NS:
case ARMMMUIdx_Phys_Root:
case ARMMMUIdx_Phys_Realm:
/* Checking Phys early avoids special casing later vs regime_el. */
return get_phys_addr_disabled(env, ptw, address, access_type,
result, fi);
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
/*
* First stage lookup uses second stage for ptw; only
* Secure has both S and NS IPA and starts with Stage2_S.
*/
ptw->in_ptw_idx = (ptw->in_space == ARMSS_Secure) ?
ARMMMUIdx_Stage2_S : ARMMMUIdx_Stage2;
break;
case ARMMMUIdx_Stage2:
case ARMMMUIdx_Stage2_S:
/*
* Second stage lookup uses physical for ptw; whether this is S or
* NS may depend on the SW/NSW bits if this is a stage 2 lookup for
* the Secure EL2&0 regime.
*/
ptw->in_ptw_idx = ptw_idx_for_stage_2(env, mmu_idx);
break;
case ARMMMUIdx_E10_0:
s1_mmu_idx = ARMMMUIdx_Stage1_E0;
goto do_twostage;
case ARMMMUIdx_E10_1:
s1_mmu_idx = ARMMMUIdx_Stage1_E1;
goto do_twostage;
case ARMMMUIdx_E10_1_PAN:
s1_mmu_idx = ARMMMUIdx_Stage1_E1_PAN;
do_twostage:
/*
* Call ourselves recursively to do the stage 1 and then stage 2
* translations if mmu_idx is a two-stage regime, and EL2 present.
* Otherwise, a stage1+stage2 translation is just stage 1.
*/
ptw->in_mmu_idx = mmu_idx = s1_mmu_idx;
if (arm_feature(env, ARM_FEATURE_EL2) &&
!regime_translation_disabled(env, ARMMMUIdx_Stage2,
ptw->in_space)) {
return get_phys_addr_twostage(env, ptw, address, access_type,
result, fi);
}
- /* fall through */
+ fallthrough;
default:
/* Single stage uses physical for ptw. */
ptw->in_ptw_idx = arm_space_to_phys(ptw->in_space);
break;
}
result->f.attrs.user = regime_is_user(env, mmu_idx);
/*
* Fast Context Switch Extension. This doesn't exist at all in v8.
* In v7 and earlier it affects all stage 1 translations.
*/
if (address < 0x02000000 && mmu_idx != ARMMMUIdx_Stage2
&& !arm_feature(env, ARM_FEATURE_V8)) {
if (regime_el(env, mmu_idx) == 3) {
address += env->cp15.fcseidr_s;
} else {
address += env->cp15.fcseidr_ns;
}
}
if (arm_feature(env, ARM_FEATURE_PMSA)) {
bool ret;
result->f.lg_page_size = TARGET_PAGE_BITS;
if (arm_feature(env, ARM_FEATURE_V8)) {
/* PMSAv8 */
ret = get_phys_addr_pmsav8(env, ptw, address, access_type,
result, fi);
} else if (arm_feature(env, ARM_FEATURE_V7)) {
/* PMSAv7 */
ret = get_phys_addr_pmsav7(env, ptw, address, access_type,
result, fi);
} else {
/* Pre-v7 MPU */
ret = get_phys_addr_pmsav5(env, ptw, address, access_type,
result, fi);
}
qemu_log_mask(CPU_LOG_MMU, "PMSA MPU lookup for %s at 0x%08" PRIx32
" mmu_idx %u -> %s (prot %c%c%c)\n",
access_type == MMU_DATA_LOAD ? "reading" :
(access_type == MMU_DATA_STORE ? "writing" : "execute"),
(uint32_t)address, mmu_idx,
ret ? "Miss" : "Hit",
result->f.prot & PAGE_READ ? 'r' : '-',
result->f.prot & PAGE_WRITE ? 'w' : '-',
result->f.prot & PAGE_EXEC ? 'x' : '-');
return ret;
}
/* Definitely a real MMU, not an MPU */
if (regime_translation_disabled(env, mmu_idx, ptw->in_space)) {
return get_phys_addr_disabled(env, ptw, address, access_type,
result, fi);
}
if (regime_using_lpae_format(env, mmu_idx)) {
return get_phys_addr_lpae(env, ptw, address, access_type, result, fi);
} else if (arm_feature(env, ARM_FEATURE_V7) ||
regime_sctlr(env, mmu_idx) & SCTLR_XP) {
return get_phys_addr_v6(env, ptw, address, access_type, result, fi);
} else {
return get_phys_addr_v5(env, ptw, address, access_type, result, fi);
}
}
diff --git a/target/arm/tcg/psci.c b/target/arm/tcg/psci.c
index 6c1239bb96..dafc39c3d7 100644
--- a/target/arm/tcg/psci.c
+++ b/target/arm/tcg/psci.c
@@ -56,152 +56,152 @@ bool arm_is_psci_call(ARMCPU *cpu, int excp_type)
void arm_handle_psci_call(ARMCPU *cpu)
{
/*
* This function partially implements the logic for dispatching Power State
* Coordination Interface (PSCI) calls (as described in ARM DEN 0022D.b),
* to the extent required for bringing up and taking down secondary cores,
* and for handling reset and poweroff requests.
* Additional information about the calling convention used is available in
* the document 'SMC Calling Convention' (ARM DEN 0028)
*/
CPUARMState *env = &cpu->env;
uint64_t param[4];
uint64_t context_id, mpidr;
target_ulong entry;
int32_t ret = 0;
int i;
for (i = 0; i < 4; i++) {
/*
* All PSCI functions take explicit 32-bit or native int sized
* arguments so we can simply zero-extend all arguments regardless
* of which exact function we are about to call.
*/
param[i] = is_a64(env) ? env->xregs[i] : env->regs[i];
}
if ((param[0] & QEMU_PSCI_0_2_64BIT) && !is_a64(env)) {
ret = QEMU_PSCI_RET_NOT_SUPPORTED;
goto err;
}
switch (param[0]) {
CPUState *target_cpu_state;
ARMCPU *target_cpu;
case QEMU_PSCI_0_2_FN_PSCI_VERSION:
ret = QEMU_PSCI_VERSION_1_1;
break;
case QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE:
ret = QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED; /* No trusted OS */
break;
case QEMU_PSCI_0_2_FN_AFFINITY_INFO:
case QEMU_PSCI_0_2_FN64_AFFINITY_INFO:
mpidr = param[1];
switch (param[2]) {
case 0:
target_cpu_state = arm_get_cpu_by_id(mpidr);
if (!target_cpu_state) {
ret = QEMU_PSCI_RET_INVALID_PARAMS;
break;
}
target_cpu = ARM_CPU(target_cpu_state);
g_assert(qemu_mutex_iothread_locked());
ret = target_cpu->power_state;
break;
default:
/* Everything above affinity level 0 is always on. */
ret = 0;
}
break;
case QEMU_PSCI_0_2_FN_SYSTEM_RESET:
qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
/* QEMU reset and shutdown are async requests, but PSCI
* mandates that we never return from the reset/shutdown
* call, so power the CPU off now so it doesn't execute
* anything further.
*/
goto cpu_off;
case QEMU_PSCI_0_2_FN_SYSTEM_OFF:
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
goto cpu_off;
case QEMU_PSCI_0_1_FN_CPU_ON:
case QEMU_PSCI_0_2_FN_CPU_ON:
case QEMU_PSCI_0_2_FN64_CPU_ON:
{
/* The PSCI spec mandates that newly brought up CPUs start
* in the highest exception level which exists and is enabled
* on the calling CPU. Since the QEMU PSCI implementation is
* acting as a "fake EL3" or "fake EL2" firmware, this for us
* means that we want to start at the highest NS exception level
* that we are providing to the guest.
* The execution mode should be that which is currently in use
* by the same exception level on the calling CPU.
* The CPU should be started with the context_id value
* in x0 (if AArch64) or r0 (if AArch32).
*/
int target_el = arm_feature(env, ARM_FEATURE_EL2) ? 2 : 1;
bool target_aarch64 = arm_el_is_aa64(env, target_el);
mpidr = param[1];
entry = param[2];
context_id = param[3];
ret = arm_set_cpu_on(mpidr, entry, context_id,
target_el, target_aarch64);
break;
}
case QEMU_PSCI_0_1_FN_CPU_OFF:
case QEMU_PSCI_0_2_FN_CPU_OFF:
goto cpu_off;
case QEMU_PSCI_0_1_FN_CPU_SUSPEND:
case QEMU_PSCI_0_2_FN_CPU_SUSPEND:
case QEMU_PSCI_0_2_FN64_CPU_SUSPEND:
/* Affinity levels are not supported in QEMU */
if (param[1] & 0xfffe0000) {
ret = QEMU_PSCI_RET_INVALID_PARAMS;
break;
}
/* Powerdown is not supported, we always go into WFI */
if (is_a64(env)) {
env->xregs[0] = 0;
} else {
env->regs[0] = 0;
}
helper_wfi(env, 4);
break;
case QEMU_PSCI_1_0_FN_PSCI_FEATURES:
switch (param[1]) {
case QEMU_PSCI_0_2_FN_PSCI_VERSION:
case QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE:
case QEMU_PSCI_0_2_FN_AFFINITY_INFO:
case QEMU_PSCI_0_2_FN64_AFFINITY_INFO:
case QEMU_PSCI_0_2_FN_SYSTEM_RESET:
case QEMU_PSCI_0_2_FN_SYSTEM_OFF:
case QEMU_PSCI_0_1_FN_CPU_ON:
case QEMU_PSCI_0_2_FN_CPU_ON:
case QEMU_PSCI_0_2_FN64_CPU_ON:
case QEMU_PSCI_0_1_FN_CPU_OFF:
case QEMU_PSCI_0_2_FN_CPU_OFF:
case QEMU_PSCI_0_1_FN_CPU_SUSPEND:
case QEMU_PSCI_0_2_FN_CPU_SUSPEND:
case QEMU_PSCI_0_2_FN64_CPU_SUSPEND:
case QEMU_PSCI_1_0_FN_PSCI_FEATURES:
if (!(param[1] & QEMU_PSCI_0_2_64BIT) || is_a64(env)) {
ret = 0;
break;
}
- /* fallthrough */
+ fallthrough;
case QEMU_PSCI_0_1_FN_MIGRATE:
case QEMU_PSCI_0_2_FN_MIGRATE:
default:
ret = QEMU_PSCI_RET_NOT_SUPPORTED;
break;
}
break;
case QEMU_PSCI_0_1_FN_MIGRATE:
case QEMU_PSCI_0_2_FN_MIGRATE:
default:
ret = QEMU_PSCI_RET_NOT_SUPPORTED;
break;
}
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 10e8dcf743..ee97219acb 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -5725,176 +5725,176 @@ static void handle_fp_compare(DisasContext *s, int
size,
/* Floating point compare
* 31 30 29 28 24 23 22 21 20 16 15 14 13 10 9 5 4 0
* +---+---+---+-----------+------+---+------+-----+---------+------+-------+
* | M | 0 | S | 1 1 1 1 0 | type | 1 | Rm | op | 1 0 0 0 | Rn | op2 |
* +---+---+---+-----------+------+---+------+-----+---------+------+-------+
*/
static void disas_fp_compare(DisasContext *s, uint32_t insn)
{
unsigned int mos, type, rm, op, rn, opc, op2r;
int size;
mos = extract32(insn, 29, 3);
type = extract32(insn, 22, 2);
rm = extract32(insn, 16, 5);
op = extract32(insn, 14, 2);
rn = extract32(insn, 5, 5);
opc = extract32(insn, 3, 2);
op2r = extract32(insn, 0, 3);
if (mos || op || op2r) {
unallocated_encoding(s);
return;
}
switch (type) {
case 0:
size = MO_32;
break;
case 1:
size = MO_64;
break;
case 3:
size = MO_16;
if (dc_isar_feature(aa64_fp16, s)) {
break;
}
- /* fallthru */
+ fallthrough;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_fp_compare(s, size, rn, rm, opc & 1, opc & 2);
}
/* Floating point conditional compare
* 31 30 29 28 24 23 22 21 20 16 15 12 11 10 9 5 4 3 0
* +---+---+---+-----------+------+---+------+------+-----+------+----+------+
* | M | 0 | S | 1 1 1 1 0 | type | 1 | Rm | cond | 0 1 | Rn | op | nzcv |
* +---+---+---+-----------+------+---+------+------+-----+------+----+------+
*/
static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
{
unsigned int mos, type, rm, cond, rn, op, nzcv;
TCGLabel *label_continue = NULL;
int size;
mos = extract32(insn, 29, 3);
type = extract32(insn, 22, 2);
rm = extract32(insn, 16, 5);
cond = extract32(insn, 12, 4);
rn = extract32(insn, 5, 5);
op = extract32(insn, 4, 1);
nzcv = extract32(insn, 0, 4);
if (mos) {
unallocated_encoding(s);
return;
}
switch (type) {
case 0:
size = MO_32;
break;
case 1:
size = MO_64;
break;
case 3:
size = MO_16;
if (dc_isar_feature(aa64_fp16, s)) {
break;
}
- /* fallthru */
+ fallthrough;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
if (cond < 0x0e) { /* not always */
TCGLabel *label_match = gen_new_label();
label_continue = gen_new_label();
arm_gen_test_cc(cond, label_match);
/* nomatch: */
gen_set_nzcv(tcg_constant_i64(nzcv << 28));
tcg_gen_br(label_continue);
gen_set_label(label_match);
}
handle_fp_compare(s, size, rn, rm, false, op);
if (cond < 0x0e) {
gen_set_label(label_continue);
}
}
/* Floating point conditional select
* 31 30 29 28 24 23 22 21 20 16 15 12 11 10 9 5 4 0
* +---+---+---+-----------+------+---+------+------+-----+------+------+
* | M | 0 | S | 1 1 1 1 0 | type | 1 | Rm | cond | 1 1 | Rn | Rd |
* +---+---+---+-----------+------+---+------+------+-----+------+------+
*/
static void disas_fp_csel(DisasContext *s, uint32_t insn)
{
unsigned int mos, type, rm, cond, rn, rd;
TCGv_i64 t_true, t_false;
DisasCompare64 c;
MemOp sz;
mos = extract32(insn, 29, 3);
type = extract32(insn, 22, 2);
rm = extract32(insn, 16, 5);
cond = extract32(insn, 12, 4);
rn = extract32(insn, 5, 5);
rd = extract32(insn, 0, 5);
if (mos) {
unallocated_encoding(s);
return;
}
switch (type) {
case 0:
sz = MO_32;
break;
case 1:
sz = MO_64;
break;
case 3:
sz = MO_16;
if (dc_isar_feature(aa64_fp16, s)) {
break;
}
- /* fallthru */
+ fallthrough;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
/* Zero extend sreg & hreg inputs to 64 bits now. */
t_true = tcg_temp_new_i64();
t_false = tcg_temp_new_i64();
read_vec_element(s, t_true, rn, 0, sz);
read_vec_element(s, t_false, rm, 0, sz);
a64_test_cc(&c, cond);
tcg_gen_movcond_i64(c.cond, t_true, c.value, tcg_constant_i64(0),
t_true, t_false);
/* Note that sregs & hregs write back zeros to the high bits,
and we've already done the zero-extension. */
write_fp_dreg(s, rd, t_true);
}
/* Floating-point data-processing (1 source) - half precision */
@@ -6159,95 +6159,95 @@ static void handle_fp_fcvt(DisasContext *s, int opcode,
/* Floating point data-processing (1 source)
* 31 30 29 28 24 23 22 21 20 15 14 10 9 5 4 0
* +---+---+---+-----------+------+---+--------+-----------+------+------+
* | M | 0 | S | 1 1 1 1 0 | type | 1 | opcode | 1 0 0 0 0 | Rn | Rd |
* +---+---+---+-----------+------+---+--------+-----------+------+------+
*/
static void disas_fp_1src(DisasContext *s, uint32_t insn)
{
int mos = extract32(insn, 29, 3);
int type = extract32(insn, 22, 2);
int opcode = extract32(insn, 15, 6);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
if (mos) {
goto do_unallocated;
}
switch (opcode) {
case 0x4: case 0x5: case 0x7:
{
/* FCVT between half, single and double precision */
int dtype = extract32(opcode, 0, 2);
if (type == 2 || dtype == type) {
goto do_unallocated;
}
if (!fp_access_check(s)) {
return;
}
handle_fp_fcvt(s, opcode, rd, rn, dtype, type);
break;
}
case 0x10 ... 0x13: /* FRINT{32,64}{X,Z} */
if (type > 1 || !dc_isar_feature(aa64_frint, s)) {
goto do_unallocated;
}
- /* fall through */
+ fallthrough;
case 0x0 ... 0x3:
case 0x8 ... 0xc:
case 0xe ... 0xf:
/* 32-to-32 and 64-to-64 ops */
switch (type) {
case 0:
if (!fp_access_check(s)) {
return;
}
handle_fp_1src_single(s, opcode, rd, rn);
break;
case 1:
if (!fp_access_check(s)) {
return;
}
handle_fp_1src_double(s, opcode, rd, rn);
break;
case 3:
if (!dc_isar_feature(aa64_fp16, s)) {
goto do_unallocated;
}
if (!fp_access_check(s)) {
return;
}
handle_fp_1src_half(s, opcode, rd, rn);
break;
default:
goto do_unallocated;
}
break;
case 0x6:
switch (type) {
case 1: /* BFCVT */
if (!dc_isar_feature(aa64_bf16, s)) {
goto do_unallocated;
}
if (!fp_access_check(s)) {
return;
}
handle_fp_1src_single(s, opcode, rd, rn);
break;
default:
goto do_unallocated;
}
break;
default:
do_unallocated:
unallocated_encoding(s);
break;
}
}
/* Floating-point data-processing (2 source) - single precision */
@@ -6593,52 +6593,52 @@ static void disas_fp_3src(DisasContext *s, uint32_t
insn)
/* Floating point immediate
* 31 30 29 28 24 23 22 21 20 13 12 10 9 5 4 0
* +---+---+---+-----------+------+---+------------+-------+------+------+
* | M | 0 | S | 1 1 1 1 0 | type | 1 | imm8 | 1 0 0 | imm5 | Rd |
* +---+---+---+-----------+------+---+------------+-------+------+------+
*/
static void disas_fp_imm(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int imm5 = extract32(insn, 5, 5);
int imm8 = extract32(insn, 13, 8);
int type = extract32(insn, 22, 2);
int mos = extract32(insn, 29, 3);
uint64_t imm;
MemOp sz;
if (mos || imm5) {
unallocated_encoding(s);
return;
}
switch (type) {
case 0:
sz = MO_32;
break;
case 1:
sz = MO_64;
break;
case 3:
sz = MO_16;
if (dc_isar_feature(aa64_fp16, s)) {
break;
}
- /* fallthru */
+ fallthrough;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
imm = vfp_expand_imm(sz, imm8);
write_fp_dreg(s, rd, tcg_constant_i64(imm));
}
/* Handle floating point <=> fixed point conversions. Note that we can
* also deal with fp <=> integer conversions as a special case (scale == 64)
* OPTME: consider handling that special case specially or at least skipping
* the call to scalbn in the helpers for zero shifts.
*/
@@ -6803,57 +6803,57 @@ static void handle_fpfpcvt(DisasContext *s, int rd, int
rn, int opcode,
/* Floating point <-> fixed point conversions
* 31 30 29 28 24 23 22 21 20 19 18 16 15 10 9 5 4 0
* +----+---+---+-----------+------+---+-------+--------+-------+------+------+
* | sf | 0 | S | 1 1 1 1 0 | type | 0 | rmode | opcode | scale | Rn | Rd |
* +----+---+---+-----------+------+---+-------+--------+-------+------+------+
*/
static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int scale = extract32(insn, 10, 6);
int opcode = extract32(insn, 16, 3);
int rmode = extract32(insn, 19, 2);
int type = extract32(insn, 22, 2);
bool sbit = extract32(insn, 29, 1);
bool sf = extract32(insn, 31, 1);
bool itof;
if (sbit || (!sf && scale < 32)) {
unallocated_encoding(s);
return;
}
switch (type) {
case 0: /* float32 */
case 1: /* float64 */
break;
case 3: /* float16 */
if (dc_isar_feature(aa64_fp16, s)) {
break;
}
- /* fallthru */
+ fallthrough;
default:
unallocated_encoding(s);
return;
}
switch ((rmode << 3) | opcode) {
case 0x2: /* SCVTF */
case 0x3: /* UCVTF */
itof = true;
break;
case 0x18: /* FCVTZS */
case 0x19: /* FCVTZU */
itof = false;
break;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_fpfpcvt(s, rd, rn, opcode, itof, FPROUNDING_ZERO, scale, sf, type);
}
@@ -6936,98 +6936,98 @@ static void handle_fjcvtzs(DisasContext *s, int rd, int
rn)
/* Floating point <-> integer conversions
* 31 30 29 28 24 23 22 21 20 19 18 16 15 10 9 5 4 0
* +----+---+---+-----------+------+---+-------+-----+-------------+----+----+
* | sf | 0 | S | 1 1 1 1 0 | type | 1 | rmode | opc | 0 0 0 0 0 0 | Rn | Rd |
* +----+---+---+-----------+------+---+-------+-----+-------------+----+----+
*/
static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int opcode = extract32(insn, 16, 3);
int rmode = extract32(insn, 19, 2);
int type = extract32(insn, 22, 2);
bool sbit = extract32(insn, 29, 1);
bool sf = extract32(insn, 31, 1);
bool itof = false;
if (sbit) {
goto do_unallocated;
}
switch (opcode) {
case 2: /* SCVTF */
case 3: /* UCVTF */
itof = true;
- /* fallthru */
+ fallthrough;
case 4: /* FCVTAS */
case 5: /* FCVTAU */
if (rmode != 0) {
goto do_unallocated;
}
- /* fallthru */
+ fallthrough;
case 0: /* FCVT[NPMZ]S */
case 1: /* FCVT[NPMZ]U */
switch (type) {
case 0: /* float32 */
case 1: /* float64 */
break;
case 3: /* float16 */
if (!dc_isar_feature(aa64_fp16, s)) {
goto do_unallocated;
}
break;
default:
goto do_unallocated;
}
if (!fp_access_check(s)) {
return;
}
handle_fpfpcvt(s, rd, rn, opcode, itof, rmode, 64, sf, type);
break;
default:
switch (sf << 7 | type << 5 | rmode << 3 | opcode) {
case 0b01100110: /* FMOV half <-> 32-bit int */
case 0b01100111:
case 0b11100110: /* FMOV half <-> 64-bit int */
case 0b11100111:
if (!dc_isar_feature(aa64_fp16, s)) {
goto do_unallocated;
}
- /* fallthru */
+ fallthrough;
case 0b00000110: /* FMOV 32-bit */
case 0b00000111:
case 0b10100110: /* FMOV 64-bit */
case 0b10100111:
case 0b11001110: /* FMOV top half of 128-bit */
case 0b11001111:
if (!fp_access_check(s)) {
return;
}
itof = opcode & 1;
handle_fmov(s, rd, rn, type, itof);
break;
case 0b00111110: /* FJCVTZS */
if (!dc_isar_feature(aa64_jscvt, s)) {
goto do_unallocated;
} else if (fp_access_check(s)) {
handle_fjcvtzs(s, rd, rn);
}
break;
default:
do_unallocated:
unallocated_encoding(s);
return;
}
break;
}
}
/* FP-specific subcases of table C3-6 (SIMD and FP data processing)
* 31 30 29 28 25 24 0
* +---+---+---+---------+-----------------------------+
* | | 0 | | 1 1 1 1 | |
* +---+---+---+---------+-----------------------------+
*/
@@ -7362,159 +7362,159 @@ static TCGv_i32 do_reduction_op(DisasContext *s, int
fpopcode, int rn,
/* AdvSIMD across lanes
* 31 30 29 28 24 23 22 21 17 16 12 11 10 9 5 4 0
* +---+---+---+-----------+------+-----------+--------+-----+------+------+
* | 0 | Q | U | 0 1 1 1 0 | size | 1 1 0 0 0 | opcode | 1 0 | Rn | Rd |
* +---+---+---+-----------+------+-----------+--------+-----+------+------+
*/
static void disas_simd_across_lanes(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int size = extract32(insn, 22, 2);
int opcode = extract32(insn, 12, 5);
bool is_q = extract32(insn, 30, 1);
bool is_u = extract32(insn, 29, 1);
bool is_fp = false;
bool is_min = false;
int esize;
int elements;
int i;
TCGv_i64 tcg_res, tcg_elt;
switch (opcode) {
case 0x1b: /* ADDV */
if (is_u) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x3: /* SADDLV, UADDLV */
case 0xa: /* SMAXV, UMAXV */
case 0x1a: /* SMINV, UMINV */
if (size == 3 || (size == 2 && !is_q)) {
unallocated_encoding(s);
return;
}
break;
case 0xc: /* FMAXNMV, FMINNMV */
case 0xf: /* FMAXV, FMINV */
/* Bit 1 of size field encodes min vs max and the actual size
* depends on the encoding of the U bit. If not set (and FP16
* enabled) then we do half-precision float instead of single
* precision.
*/
is_min = extract32(size, 1, 1);
is_fp = true;
if (!is_u && dc_isar_feature(aa64_fp16, s)) {
size = 1;
} else if (!is_u || !is_q || extract32(size, 0, 1)) {
unallocated_encoding(s);
return;
} else {
size = 2;
}
break;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
esize = 8 << size;
elements = (is_q ? 128 : 64) / esize;
tcg_res = tcg_temp_new_i64();
tcg_elt = tcg_temp_new_i64();
/* These instructions operate across all lanes of a vector
* to produce a single result. We can guarantee that a 64
* bit intermediate is sufficient:
* + for [US]ADDLV the maximum element size is 32 bits, and
* the result type is 64 bits
* + for FMAX*V, FMIN*V, ADDV the intermediate type is the
* same as the element size, which is 32 bits at most
* For the integer operations we can choose to work at 64
* or 32 bits and truncate at the end; for simplicity
* we use 64 bits always. The floating point
* ops do require 32 bit intermediates, though.
*/
if (!is_fp) {
read_vec_element(s, tcg_res, rn, 0, size | (is_u ? 0 : MO_SIGN));
for (i = 1; i < elements; i++) {
read_vec_element(s, tcg_elt, rn, i, size | (is_u ? 0 : MO_SIGN));
switch (opcode) {
case 0x03: /* SADDLV / UADDLV */
case 0x1b: /* ADDV */
tcg_gen_add_i64(tcg_res, tcg_res, tcg_elt);
break;
case 0x0a: /* SMAXV / UMAXV */
if (is_u) {
tcg_gen_umax_i64(tcg_res, tcg_res, tcg_elt);
} else {
tcg_gen_smax_i64(tcg_res, tcg_res, tcg_elt);
}
break;
case 0x1a: /* SMINV / UMINV */
if (is_u) {
tcg_gen_umin_i64(tcg_res, tcg_res, tcg_elt);
} else {
tcg_gen_smin_i64(tcg_res, tcg_res, tcg_elt);
}
break;
default:
g_assert_not_reached();
}
}
} else {
/* Floating point vector reduction ops which work across 32
* bit (single) or 16 bit (half-precision) intermediates.
* Note that correct NaN propagation requires that we do these
* operations in exactly the order specified by the pseudocode.
*/
TCGv_ptr fpst = fpstatus_ptr(size == MO_16 ? FPST_FPCR_F16 :
FPST_FPCR);
int fpopcode = opcode | is_min << 4 | is_u << 5;
int vmap = (1 << elements) - 1;
TCGv_i32 tcg_res32 = do_reduction_op(s, fpopcode, rn, esize,
(is_q ? 128 : 64), vmap, fpst);
tcg_gen_extu_i32_i64(tcg_res, tcg_res32);
}
/* Now truncate the result to the width required for the final output */
if (opcode == 0x03) {
/* SADDLV, UADDLV: result is 2*esize */
size++;
}
switch (size) {
case 0:
tcg_gen_ext8u_i64(tcg_res, tcg_res);
break;
case 1:
tcg_gen_ext16u_i64(tcg_res, tcg_res);
break;
case 2:
tcg_gen_ext32u_i64(tcg_res, tcg_res);
break;
case 3:
break;
default:
g_assert_not_reached();
}
write_fp_dreg(s, rd, tcg_res);
}
/* DUP (Element, Vector)
*
* 31 30 29 21 20 16 15 10 9 5 4 0
* +---+---+-------------------+--------+-------------+------+------+
* | 0 | Q | 0 0 1 1 1 0 0 0 0 | imm5 | 0 0 0 0 0 1 | Rn | Rd |
* +---+---+-------------------+--------+-------------+------+------+
*
* size: encoded in imm5 (see ARM ARM LowestSetBit())
*/
@@ -8269,111 +8269,111 @@ static void handle_vec_simd_sqshrn(DisasContext *s,
bool is_scalar, bool is_q,
/* SQSHLU, UQSHL, SQSHL: saturating left shifts */
static void handle_simd_qshl(DisasContext *s, bool scalar, bool is_q,
bool src_unsigned, bool dst_unsigned,
int immh, int immb, int rn, int rd)
{
int immhb = immh << 3 | immb;
int size = 32 - clz32(immh) - 1;
int shift = immhb - (8 << size);
int pass;
assert(immh != 0);
assert(!(scalar && is_q));
if (!scalar) {
if (!is_q && extract32(immh, 3, 1)) {
unallocated_encoding(s);
return;
}
/* Since we use the variable-shift helpers we must
* replicate the shift count into each element of
* the tcg_shift value.
*/
switch (size) {
case 0:
shift |= shift << 8;
- /* fall through */
+ fallthrough;
case 1:
shift |= shift << 16;
break;
case 2:
case 3:
break;
default:
g_assert_not_reached();
}
}
if (!fp_access_check(s)) {
return;
}
if (size == 3) {
TCGv_i64 tcg_shift = tcg_constant_i64(shift);
static NeonGenTwo64OpEnvFn * const fns[2][2] = {
{ gen_helper_neon_qshl_s64, gen_helper_neon_qshlu_s64 },
{ NULL, gen_helper_neon_qshl_u64 },
};
NeonGenTwo64OpEnvFn *genfn = fns[src_unsigned][dst_unsigned];
int maxpass = is_q ? 2 : 1;
for (pass = 0; pass < maxpass; pass++) {
TCGv_i64 tcg_op = tcg_temp_new_i64();
read_vec_element(s, tcg_op, rn, pass, MO_64);
genfn(tcg_op, tcg_env, tcg_op, tcg_shift);
write_vec_element(s, tcg_op, rd, pass, MO_64);
}
clear_vec_high(s, is_q, rd);
} else {
TCGv_i32 tcg_shift = tcg_constant_i32(shift);
static NeonGenTwoOpEnvFn * const fns[2][2][3] = {
{
{ gen_helper_neon_qshl_s8,
gen_helper_neon_qshl_s16,
gen_helper_neon_qshl_s32 },
{ gen_helper_neon_qshlu_s8,
gen_helper_neon_qshlu_s16,
gen_helper_neon_qshlu_s32 }
}, {
{ NULL, NULL, NULL },
{ gen_helper_neon_qshl_u8,
gen_helper_neon_qshl_u16,
gen_helper_neon_qshl_u32 }
}
};
NeonGenTwoOpEnvFn *genfn = fns[src_unsigned][dst_unsigned][size];
MemOp memop = scalar ? size : MO_32;
int maxpass = scalar ? 1 : is_q ? 4 : 2;
for (pass = 0; pass < maxpass; pass++) {
TCGv_i32 tcg_op = tcg_temp_new_i32();
read_vec_element_i32(s, tcg_op, rn, pass, memop);
genfn(tcg_op, tcg_env, tcg_op, tcg_shift);
if (scalar) {
switch (size) {
case 0:
tcg_gen_ext8u_i32(tcg_op, tcg_op);
break;
case 1:
tcg_gen_ext16u_i32(tcg_op, tcg_op);
break;
case 2:
break;
default:
g_assert_not_reached();
}
write_fp_sreg(s, rd, tcg_op);
} else {
write_vec_element_i32(s, tcg_op, rd, pass, MO_32);
}
}
if (!scalar) {
clear_vec_high(s, is_q, rd);
}
}
}
/* Common vector code for handling integer to FP conversion */
@@ -8614,170 +8614,170 @@ static void handle_simd_shift_fpint_conv(DisasContext
*s, bool is_scalar,
/* AdvSIMD scalar shift by immediate
* 31 30 29 28 23 22 19 18 16 15 11 10 9 5 4 0
* +-----+---+-------------+------+------+--------+---+------+------+
* | 0 1 | U | 1 1 1 1 1 0 | immh | immb | opcode | 1 | Rn | Rd |
* +-----+---+-------------+------+------+--------+---+------+------+
*
* This is the scalar version so it works on a fixed sized registers
*/
static void disas_simd_scalar_shift_imm(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int opcode = extract32(insn, 11, 5);
int immb = extract32(insn, 16, 3);
int immh = extract32(insn, 19, 4);
bool is_u = extract32(insn, 29, 1);
if (immh == 0) {
unallocated_encoding(s);
return;
}
switch (opcode) {
case 0x08: /* SRI */
if (!is_u) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x00: /* SSHR / USHR */
case 0x02: /* SSRA / USRA */
case 0x04: /* SRSHR / URSHR */
case 0x06: /* SRSRA / URSRA */
handle_scalar_simd_shri(s, is_u, immh, immb, opcode, rn, rd);
break;
case 0x0a: /* SHL / SLI */
handle_scalar_simd_shli(s, is_u, immh, immb, opcode, rn, rd);
break;
case 0x1c: /* SCVTF, UCVTF */
handle_simd_shift_intfp_conv(s, true, false, is_u, immh, immb,
opcode, rn, rd);
break;
case 0x10: /* SQSHRUN, SQSHRUN2 */
case 0x11: /* SQRSHRUN, SQRSHRUN2 */
if (!is_u) {
unallocated_encoding(s);
return;
}
handle_vec_simd_sqshrn(s, true, false, false, true,
immh, immb, opcode, rn, rd);
break;
case 0x12: /* SQSHRN, SQSHRN2, UQSHRN */
case 0x13: /* SQRSHRN, SQRSHRN2, UQRSHRN, UQRSHRN2 */
handle_vec_simd_sqshrn(s, true, false, is_u, is_u,
immh, immb, opcode, rn, rd);
break;
case 0xc: /* SQSHLU */
if (!is_u) {
unallocated_encoding(s);
return;
}
handle_simd_qshl(s, true, false, false, true, immh, immb, rn, rd);
break;
case 0xe: /* SQSHL, UQSHL */
handle_simd_qshl(s, true, false, is_u, is_u, immh, immb, rn, rd);
break;
case 0x1f: /* FCVTZS, FCVTZU */
handle_simd_shift_fpint_conv(s, true, false, is_u, immh, immb, rn, rd);
break;
default:
unallocated_encoding(s);
break;
}
}
/* AdvSIMD scalar three different
* 31 30 29 28 24 23 22 21 20 16 15 12 11 10 9 5 4 0
* +-----+---+-----------+------+---+------+--------+-----+------+------+
* | 0 1 | U | 1 1 1 1 0 | size | 1 | Rm | opcode | 0 0 | Rn | Rd |
* +-----+---+-----------+------+---+------+--------+-----+------+------+
*/
static void disas_simd_scalar_three_reg_diff(DisasContext *s, uint32_t insn)
{
bool is_u = extract32(insn, 29, 1);
int size = extract32(insn, 22, 2);
int opcode = extract32(insn, 12, 4);
int rm = extract32(insn, 16, 5);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
if (is_u) {
unallocated_encoding(s);
return;
}
switch (opcode) {
case 0x9: /* SQDMLAL, SQDMLAL2 */
case 0xb: /* SQDMLSL, SQDMLSL2 */
case 0xd: /* SQDMULL, SQDMULL2 */
if (size == 0 || size == 3) {
unallocated_encoding(s);
return;
}
break;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
if (size == 2) {
TCGv_i64 tcg_op1 = tcg_temp_new_i64();
TCGv_i64 tcg_op2 = tcg_temp_new_i64();
TCGv_i64 tcg_res = tcg_temp_new_i64();
read_vec_element(s, tcg_op1, rn, 0, MO_32 | MO_SIGN);
read_vec_element(s, tcg_op2, rm, 0, MO_32 | MO_SIGN);
tcg_gen_mul_i64(tcg_res, tcg_op1, tcg_op2);
gen_helper_neon_addl_saturate_s64(tcg_res, tcg_env, tcg_res, tcg_res);
switch (opcode) {
case 0xd: /* SQDMULL, SQDMULL2 */
break;
case 0xb: /* SQDMLSL, SQDMLSL2 */
tcg_gen_neg_i64(tcg_res, tcg_res);
- /* fall through */
+ fallthrough;
case 0x9: /* SQDMLAL, SQDMLAL2 */
read_vec_element(s, tcg_op1, rd, 0, MO_64);
gen_helper_neon_addl_saturate_s64(tcg_res, tcg_env,
tcg_res, tcg_op1);
break;
default:
g_assert_not_reached();
}
write_fp_dreg(s, rd, tcg_res);
} else {
TCGv_i32 tcg_op1 = read_fp_hreg(s, rn);
TCGv_i32 tcg_op2 = read_fp_hreg(s, rm);
TCGv_i64 tcg_res = tcg_temp_new_i64();
gen_helper_neon_mull_s16(tcg_res, tcg_op1, tcg_op2);
gen_helper_neon_addl_saturate_s32(tcg_res, tcg_env, tcg_res, tcg_res);
switch (opcode) {
case 0xd: /* SQDMULL, SQDMULL2 */
break;
case 0xb: /* SQDMLSL, SQDMLSL2 */
gen_helper_neon_negl_u32(tcg_res, tcg_res);
- /* fall through */
+ fallthrough;
case 0x9: /* SQDMLAL, SQDMLAL2 */
{
TCGv_i64 tcg_op3 = tcg_temp_new_i64();
read_vec_element(s, tcg_op3, rd, 0, MO_32);
gen_helper_neon_addl_saturate_s32(tcg_res, tcg_env,
tcg_res, tcg_op3);
break;
}
default:
g_assert_not_reached();
}
tcg_gen_ext32u_i64(tcg_res, tcg_res);
write_fp_dreg(s, rd, tcg_res);
}
}
@@ -8866,183 +8866,183 @@ static void handle_3same_64(DisasContext *s, int
opcode, bool u,
/* Handle the 3-same-operands float operations; shared by the scalar
* and vector encodings. The caller must filter out any encodings
* not allocated for the encoding it is dealing with.
*/
static void handle_3same_float(DisasContext *s, int size, int elements,
int fpopcode, int rd, int rn, int rm)
{
int pass;
TCGv_ptr fpst = fpstatus_ptr(FPST_FPCR);
for (pass = 0; pass < elements; pass++) {
if (size) {
/* Double */
TCGv_i64 tcg_op1 = tcg_temp_new_i64();
TCGv_i64 tcg_op2 = tcg_temp_new_i64();
TCGv_i64 tcg_res = tcg_temp_new_i64();
read_vec_element(s, tcg_op1, rn, pass, MO_64);
read_vec_element(s, tcg_op2, rm, pass, MO_64);
switch (fpopcode) {
case 0x39: /* FMLS */
/* As usual for ARM, separate negation for fused multiply-add
*/
gen_helper_vfp_negd(tcg_op1, tcg_op1);
- /* fall through */
+ fallthrough;
case 0x19: /* FMLA */
read_vec_element(s, tcg_res, rd, pass, MO_64);
gen_helper_vfp_muladdd(tcg_res, tcg_op1, tcg_op2,
tcg_res, fpst);
break;
case 0x18: /* FMAXNM */
gen_helper_vfp_maxnumd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1a: /* FADD */
gen_helper_vfp_addd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1b: /* FMULX */
gen_helper_vfp_mulxd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1c: /* FCMEQ */
gen_helper_neon_ceq_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1e: /* FMAX */
gen_helper_vfp_maxd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1f: /* FRECPS */
gen_helper_recpsf_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x38: /* FMINNM */
gen_helper_vfp_minnumd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3a: /* FSUB */
gen_helper_vfp_subd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3e: /* FMIN */
gen_helper_vfp_mind(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3f: /* FRSQRTS */
gen_helper_rsqrtsf_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5b: /* FMUL */
gen_helper_vfp_muld(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5c: /* FCMGE */
gen_helper_neon_cge_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5d: /* FACGE */
gen_helper_neon_acge_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5f: /* FDIV */
gen_helper_vfp_divd(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x7a: /* FABD */
gen_helper_vfp_subd(tcg_res, tcg_op1, tcg_op2, fpst);
gen_helper_vfp_absd(tcg_res, tcg_res);
break;
case 0x7c: /* FCMGT */
gen_helper_neon_cgt_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x7d: /* FACGT */
gen_helper_neon_acgt_f64(tcg_res, tcg_op1, tcg_op2, fpst);
break;
default:
g_assert_not_reached();
}
write_vec_element(s, tcg_res, rd, pass, MO_64);
} else {
/* Single */
TCGv_i32 tcg_op1 = tcg_temp_new_i32();
TCGv_i32 tcg_op2 = tcg_temp_new_i32();
TCGv_i32 tcg_res = tcg_temp_new_i32();
read_vec_element_i32(s, tcg_op1, rn, pass, MO_32);
read_vec_element_i32(s, tcg_op2, rm, pass, MO_32);
switch (fpopcode) {
case 0x39: /* FMLS */
/* As usual for ARM, separate negation for fused multiply-add
*/
gen_helper_vfp_negs(tcg_op1, tcg_op1);
- /* fall through */
+ fallthrough;
case 0x19: /* FMLA */
read_vec_element_i32(s, tcg_res, rd, pass, MO_32);
gen_helper_vfp_muladds(tcg_res, tcg_op1, tcg_op2,
tcg_res, fpst);
break;
case 0x1a: /* FADD */
gen_helper_vfp_adds(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1b: /* FMULX */
gen_helper_vfp_mulxs(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1c: /* FCMEQ */
gen_helper_neon_ceq_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1e: /* FMAX */
gen_helper_vfp_maxs(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x1f: /* FRECPS */
gen_helper_recpsf_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x18: /* FMAXNM */
gen_helper_vfp_maxnums(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x38: /* FMINNM */
gen_helper_vfp_minnums(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3a: /* FSUB */
gen_helper_vfp_subs(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3e: /* FMIN */
gen_helper_vfp_mins(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x3f: /* FRSQRTS */
gen_helper_rsqrtsf_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5b: /* FMUL */
gen_helper_vfp_muls(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5c: /* FCMGE */
gen_helper_neon_cge_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5d: /* FACGE */
gen_helper_neon_acge_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x5f: /* FDIV */
gen_helper_vfp_divs(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x7a: /* FABD */
gen_helper_vfp_subs(tcg_res, tcg_op1, tcg_op2, fpst);
gen_helper_vfp_abss(tcg_res, tcg_res);
break;
case 0x7c: /* FCMGT */
gen_helper_neon_cgt_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
case 0x7d: /* FACGT */
gen_helper_neon_acgt_f32(tcg_res, tcg_op1, tcg_op2, fpst);
break;
default:
g_assert_not_reached();
}
if (elements == 1) {
/* scalar single so clear high part */
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
tcg_gen_extu_i32_i64(tcg_tmp, tcg_res);
write_vec_element(s, tcg_tmp, rd, pass, MO_64);
} else {
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
}
}
}
clear_vec_high(s, elements * (size ? 8 : 4) > 8, rd);
}
/* AdvSIMD scalar three same
* 31 30 29 28 24 23 22 21 20 16 15 11 10 9 5 4 0
* +-----+---+-----------+------+---+------+--------+---+------+------+
* | 0 1 | U | 1 1 1 1 0 | size | 1 | Rm | opcode | 1 | Rn | Rd |
* +-----+---+-----------+------+---+------+--------+---+------+------+
*/
@@ -9468,128 +9468,128 @@ static void handle_2misc_64(DisasContext *s, int
opcode, bool u,
static void handle_2misc_fcmp_zero(DisasContext *s, int opcode,
bool is_scalar, bool is_u, bool is_q,
int size, int rn, int rd)
{
bool is_double = (size == MO_64);
TCGv_ptr fpst;
if (!fp_access_check(s)) {
return;
}
fpst = fpstatus_ptr(size == MO_16 ? FPST_FPCR_F16 : FPST_FPCR);
if (is_double) {
TCGv_i64 tcg_op = tcg_temp_new_i64();
TCGv_i64 tcg_zero = tcg_constant_i64(0);
TCGv_i64 tcg_res = tcg_temp_new_i64();
NeonGenTwoDoubleOpFn *genfn;
bool swap = false;
int pass;
switch (opcode) {
case 0x2e: /* FCMLT (zero) */
swap = true;
- /* fallthrough */
+ fallthrough;
case 0x2c: /* FCMGT (zero) */
genfn = gen_helper_neon_cgt_f64;
break;
case 0x2d: /* FCMEQ (zero) */
genfn = gen_helper_neon_ceq_f64;
break;
case 0x6d: /* FCMLE (zero) */
swap = true;
- /* fall through */
+ fallthrough;
case 0x6c: /* FCMGE (zero) */
genfn = gen_helper_neon_cge_f64;
break;
default:
g_assert_not_reached();
}
for (pass = 0; pass < (is_scalar ? 1 : 2); pass++) {
read_vec_element(s, tcg_op, rn, pass, MO_64);
if (swap) {
genfn(tcg_res, tcg_zero, tcg_op, fpst);
} else {
genfn(tcg_res, tcg_op, tcg_zero, fpst);
}
write_vec_element(s, tcg_res, rd, pass, MO_64);
}
clear_vec_high(s, !is_scalar, rd);
} else {
TCGv_i32 tcg_op = tcg_temp_new_i32();
TCGv_i32 tcg_zero = tcg_constant_i32(0);
TCGv_i32 tcg_res = tcg_temp_new_i32();
NeonGenTwoSingleOpFn *genfn;
bool swap = false;
int pass, maxpasses;
if (size == MO_16) {
switch (opcode) {
case 0x2e: /* FCMLT (zero) */
swap = true;
- /* fall through */
+ fallthrough;
case 0x2c: /* FCMGT (zero) */
genfn = gen_helper_advsimd_cgt_f16;
break;
case 0x2d: /* FCMEQ (zero) */
genfn = gen_helper_advsimd_ceq_f16;
break;
case 0x6d: /* FCMLE (zero) */
swap = true;
- /* fall through */
+ fallthrough;
case 0x6c: /* FCMGE (zero) */
genfn = gen_helper_advsimd_cge_f16;
break;
default:
g_assert_not_reached();
}
} else {
switch (opcode) {
case 0x2e: /* FCMLT (zero) */
swap = true;
- /* fall through */
+ fallthrough;
case 0x2c: /* FCMGT (zero) */
genfn = gen_helper_neon_cgt_f32;
break;
case 0x2d: /* FCMEQ (zero) */
genfn = gen_helper_neon_ceq_f32;
break;
case 0x6d: /* FCMLE (zero) */
swap = true;
- /* fall through */
+ fallthrough;
case 0x6c: /* FCMGE (zero) */
genfn = gen_helper_neon_cge_f32;
break;
default:
g_assert_not_reached();
}
}
if (is_scalar) {
maxpasses = 1;
} else {
int vector_size = 8 << is_q;
maxpasses = vector_size >> size;
}
for (pass = 0; pass < maxpasses; pass++) {
read_vec_element_i32(s, tcg_op, rn, pass, size);
if (swap) {
genfn(tcg_res, tcg_zero, tcg_op, fpst);
} else {
genfn(tcg_res, tcg_op, tcg_zero, fpst);
}
if (is_scalar) {
write_fp_sreg(s, rd, tcg_res);
} else {
write_vec_element_i32(s, tcg_res, rd, pass, size);
}
}
if (!is_scalar) {
clear_vec_high(s, is_q, rd);
}
}
}
@@ -9859,194 +9859,194 @@ static void handle_2misc_satacc(DisasContext *s, bool
is_scalar, bool is_u,
/* AdvSIMD scalar two reg misc
* 31 30 29 28 24 23 22 21 17 16 12 11 10 9 5 4 0
* +-----+---+-----------+------+-----------+--------+-----+------+------+
* | 0 1 | U | 1 1 1 1 0 | size | 1 0 0 0 0 | opcode | 1 0 | Rn | Rd |
* +-----+---+-----------+------+-----------+--------+-----+------+------+
*/
static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int opcode = extract32(insn, 12, 5);
int size = extract32(insn, 22, 2);
bool u = extract32(insn, 29, 1);
bool is_fcvt = false;
int rmode;
TCGv_i32 tcg_rmode;
TCGv_ptr tcg_fpstatus;
switch (opcode) {
case 0x3: /* USQADD / SUQADD*/
if (!fp_access_check(s)) {
return;
}
handle_2misc_satacc(s, true, u, false, size, rn, rd);
return;
case 0x7: /* SQABS / SQNEG */
break;
case 0xa: /* CMLT */
if (u) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x8: /* CMGT, CMGE */
case 0x9: /* CMEQ, CMLE */
case 0xb: /* ABS, NEG */
if (size != 3) {
unallocated_encoding(s);
return;
}
break;
case 0x12: /* SQXTUN */
if (!u) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x14: /* SQXTN, UQXTN */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_narrow(s, true, opcode, u, false, size, rn, rd);
return;
case 0xc ... 0xf:
case 0x16 ... 0x1d:
case 0x1f:
/* Floating point: U, size[1] and opcode indicate operation;
* size[0] indicates single or double precision.
*/
opcode |= (extract32(size, 1, 1) << 5) | (u << 6);
size = extract32(size, 0, 1) ? 3 : 2;
switch (opcode) {
case 0x2c: /* FCMGT (zero) */
case 0x2d: /* FCMEQ (zero) */
case 0x2e: /* FCMLT (zero) */
case 0x6c: /* FCMGE (zero) */
case 0x6d: /* FCMLE (zero) */
handle_2misc_fcmp_zero(s, opcode, true, u, true, size, rn, rd);
return;
case 0x1d: /* SCVTF */
case 0x5d: /* UCVTF */
{
bool is_signed = (opcode == 0x1d);
if (!fp_access_check(s)) {
return;
}
handle_simd_intfp_conv(s, rd, rn, 1, is_signed, 0, size);
return;
}
case 0x3d: /* FRECPE */
case 0x3f: /* FRECPX */
case 0x7d: /* FRSQRTE */
if (!fp_access_check(s)) {
return;
}
handle_2misc_reciprocal(s, opcode, true, u, true, size, rn, rd);
return;
case 0x1a: /* FCVTNS */
case 0x1b: /* FCVTMS */
case 0x3a: /* FCVTPS */
case 0x3b: /* FCVTZS */
case 0x5a: /* FCVTNU */
case 0x5b: /* FCVTMU */
case 0x7a: /* FCVTPU */
case 0x7b: /* FCVTZU */
is_fcvt = true;
rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1);
break;
case 0x1c: /* FCVTAS */
case 0x5c: /* FCVTAU */
/* TIEAWAY doesn't fit in the usual rounding mode encoding */
is_fcvt = true;
rmode = FPROUNDING_TIEAWAY;
break;
case 0x56: /* FCVTXN, FCVTXN2 */
if (size == 2) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_narrow(s, true, opcode, u, false, size - 1, rn, rd);
return;
default:
unallocated_encoding(s);
return;
}
break;
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
if (is_fcvt) {
tcg_fpstatus = fpstatus_ptr(FPST_FPCR);
tcg_rmode = gen_set_rmode(rmode, tcg_fpstatus);
} else {
tcg_fpstatus = NULL;
tcg_rmode = NULL;
}
if (size == 3) {
TCGv_i64 tcg_rn = read_fp_dreg(s, rn);
TCGv_i64 tcg_rd = tcg_temp_new_i64();
handle_2misc_64(s, opcode, u, tcg_rd, tcg_rn, tcg_rmode, tcg_fpstatus);
write_fp_dreg(s, rd, tcg_rd);
} else {
TCGv_i32 tcg_rn = tcg_temp_new_i32();
TCGv_i32 tcg_rd = tcg_temp_new_i32();
read_vec_element_i32(s, tcg_rn, rn, 0, size);
switch (opcode) {
case 0x7: /* SQABS, SQNEG */
{
NeonGenOneOpEnvFn *genfn;
static NeonGenOneOpEnvFn * const fns[3][2] = {
{ gen_helper_neon_qabs_s8, gen_helper_neon_qneg_s8 },
{ gen_helper_neon_qabs_s16, gen_helper_neon_qneg_s16 },
{ gen_helper_neon_qabs_s32, gen_helper_neon_qneg_s32 },
};
genfn = fns[size][u];
genfn(tcg_rd, tcg_env, tcg_rn);
break;
}
case 0x1a: /* FCVTNS */
case 0x1b: /* FCVTMS */
case 0x1c: /* FCVTAS */
case 0x3a: /* FCVTPS */
case 0x3b: /* FCVTZS */
gen_helper_vfp_tosls(tcg_rd, tcg_rn, tcg_constant_i32(0),
tcg_fpstatus);
break;
case 0x5a: /* FCVTNU */
case 0x5b: /* FCVTMU */
case 0x5c: /* FCVTAU */
case 0x7a: /* FCVTPU */
case 0x7b: /* FCVTZU */
gen_helper_vfp_touls(tcg_rd, tcg_rn, tcg_constant_i32(0),
tcg_fpstatus);
break;
default:
g_assert_not_reached();
}
write_fp_sreg(s, rd, tcg_rd);
}
if (is_fcvt) {
gen_restore_rmode(tcg_rmode, tcg_fpstatus);
}
}
/* SSHR[RA]/USHR[RA] - Vector shift right (optional rounding/accumulate) */
@@ -10230,78 +10230,78 @@ static void handle_vec_simd_shrn(DisasContext *s,
bool is_q,
/* AdvSIMD shift by immediate
* 31 30 29 28 23 22 19 18 16 15 11 10 9 5 4 0
* +---+---+---+-------------+------+------+--------+---+------+------+
* | 0 | Q | U | 0 1 1 1 1 0 | immh | immb | opcode | 1 | Rn | Rd |
* +---+---+---+-------------+------+------+--------+---+------+------+
*/
static void disas_simd_shift_imm(DisasContext *s, uint32_t insn)
{
int rd = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int opcode = extract32(insn, 11, 5);
int immb = extract32(insn, 16, 3);
int immh = extract32(insn, 19, 4);
bool is_u = extract32(insn, 29, 1);
bool is_q = extract32(insn, 30, 1);
/* data_proc_simd[] has sent immh == 0 to disas_simd_mod_imm. */
assert(immh != 0);
switch (opcode) {
case 0x08: /* SRI */
if (!is_u) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x00: /* SSHR / USHR */
case 0x02: /* SSRA / USRA (accumulate) */
case 0x04: /* SRSHR / URSHR (rounding) */
case 0x06: /* SRSRA / URSRA (accum + rounding) */
handle_vec_simd_shri(s, is_q, is_u, immh, immb, opcode, rn, rd);
break;
case 0x0a: /* SHL / SLI */
handle_vec_simd_shli(s, is_q, is_u, immh, immb, opcode, rn, rd);
break;
case 0x10: /* SHRN */
case 0x11: /* RSHRN / SQRSHRUN */
if (is_u) {
handle_vec_simd_sqshrn(s, false, is_q, false, true, immh, immb,
opcode, rn, rd);
} else {
handle_vec_simd_shrn(s, is_q, immh, immb, opcode, rn, rd);
}
break;
case 0x12: /* SQSHRN / UQSHRN */
case 0x13: /* SQRSHRN / UQRSHRN */
handle_vec_simd_sqshrn(s, false, is_q, is_u, is_u, immh, immb,
opcode, rn, rd);
break;
case 0x14: /* SSHLL / USHLL */
handle_vec_simd_wshli(s, is_q, is_u, immh, immb, opcode, rn, rd);
break;
case 0x1c: /* SCVTF / UCVTF */
handle_simd_shift_intfp_conv(s, false, is_q, is_u, immh, immb,
opcode, rn, rd);
break;
case 0xc: /* SQSHLU */
if (!is_u) {
unallocated_encoding(s);
return;
}
handle_simd_qshl(s, false, is_q, false, true, immh, immb, rn, rd);
break;
case 0xe: /* SQSHL, UQSHL */
handle_simd_qshl(s, false, is_q, is_u, is_u, immh, immb, rn, rd);
break;
case 0x1f: /* FCVTZS/ FCVTZU */
handle_simd_shift_fpint_conv(s, false, is_q, is_u, immh, immb, rn, rd);
return;
default:
unallocated_encoding(s);
return;
}
}
/* Generate code to do a "long" addition or subtraction, ie one done in
* TCGv_i64 on vector lanes twice the width specified by size.
*/
@@ -10598,118 +10598,118 @@ static void handle_3rd_narrowing(DisasContext *s,
int is_q, int is_u, int size,
/* AdvSIMD three different
* 31 30 29 28 24 23 22 21 20 16 15 12 11 10 9 5 4 0
* +---+---+---+-----------+------+---+------+--------+-----+------+------+
* | 0 | Q | U | 0 1 1 1 0 | size | 1 | Rm | opcode | 0 0 | Rn | Rd |
* +---+---+---+-----------+------+---+------+--------+-----+------+------+
*/
static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn)
{
/* Instructions in this group fall into three basic classes
* (in each case with the operation working on each element in
* the input vectors):
* (1) widening 64 x 64 -> 128 (with possibly Vd as an extra
* 128 bit input)
* (2) wide 64 x 128 -> 128
* (3) narrowing 128 x 128 -> 64
* Here we do initial decode, catch unallocated cases and
* dispatch to separate functions for each class.
*/
int is_q = extract32(insn, 30, 1);
int is_u = extract32(insn, 29, 1);
int size = extract32(insn, 22, 2);
int opcode = extract32(insn, 12, 4);
int rm = extract32(insn, 16, 5);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
switch (opcode) {
case 1: /* SADDW, SADDW2, UADDW, UADDW2 */
case 3: /* SSUBW, SSUBW2, USUBW, USUBW2 */
/* 64 x 128 -> 128 */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_3rd_wide(s, is_q, is_u, size, opcode, rd, rn, rm);
break;
case 4: /* ADDHN, ADDHN2, RADDHN, RADDHN2 */
case 6: /* SUBHN, SUBHN2, RSUBHN, RSUBHN2 */
/* 128 x 128 -> 64 */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_3rd_narrowing(s, is_q, is_u, size, opcode, rd, rn, rm);
break;
case 14: /* PMULL, PMULL2 */
if (is_u) {
unallocated_encoding(s);
return;
}
switch (size) {
case 0: /* PMULL.P8 */
if (!fp_access_check(s)) {
return;
}
/* The Q field specifies lo/hi half input for this insn. */
gen_gvec_op3_ool(s, true, rd, rn, rm, is_q,
gen_helper_neon_pmull_h);
break;
case 3: /* PMULL.P64 */
if (!dc_isar_feature(aa64_pmull, s)) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
/* The Q field specifies lo/hi half input for this insn. */
gen_gvec_op3_ool(s, true, rd, rn, rm, is_q,
gen_helper_gvec_pmull_q);
break;
default:
unallocated_encoding(s);
break;
}
return;
case 9: /* SQDMLAL, SQDMLAL2 */
case 11: /* SQDMLSL, SQDMLSL2 */
case 13: /* SQDMULL, SQDMULL2 */
if (is_u || size == 0) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0: /* SADDL, SADDL2, UADDL, UADDL2 */
case 2: /* SSUBL, SSUBL2, USUBL, USUBL2 */
case 5: /* SABAL, SABAL2, UABAL, UABAL2 */
case 7: /* SABDL, SABDL2, UABDL, UABDL2 */
case 8: /* SMLAL, SMLAL2, UMLAL, UMLAL2 */
case 10: /* SMLSL, SMLSL2, UMLSL, UMLSL2 */
case 12: /* SMULL, SMULL2, UMULL, UMULL2 */
/* 64 x 64 -> 128 */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_3rd_widening(s, is_q, is_u, size, opcode, rd, rn, rm);
break;
default:
/* opcode 15 not allocated */
unallocated_encoding(s);
break;
}
}
/* Logic op (opcode == 3) subgroup of C3.6.16. */
@@ -10993,260 +10993,260 @@ static void disas_simd_3same_float(DisasContext *s,
uint32_t insn)
/* Integer op subgroup of C3.6.16. */
static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
{
int is_q = extract32(insn, 30, 1);
int u = extract32(insn, 29, 1);
int size = extract32(insn, 22, 2);
int opcode = extract32(insn, 11, 5);
int rm = extract32(insn, 16, 5);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
int pass;
TCGCond cond;
switch (opcode) {
case 0x13: /* MUL, PMUL */
if (u && size != 0) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x0: /* SHADD, UHADD */
case 0x2: /* SRHADD, URHADD */
case 0x4: /* SHSUB, UHSUB */
case 0xc: /* SMAX, UMAX */
case 0xd: /* SMIN, UMIN */
case 0xe: /* SABD, UABD */
case 0xf: /* SABA, UABA */
case 0x12: /* MLA, MLS */
if (size == 3) {
unallocated_encoding(s);
return;
}
break;
case 0x16: /* SQDMULH, SQRDMULH */
if (size == 0 || size == 3) {
unallocated_encoding(s);
return;
}
break;
default:
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
}
if (!fp_access_check(s)) {
return;
}
switch (opcode) {
case 0x01: /* SQADD, UQADD */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uqadd_qc, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqadd_qc, size);
}
return;
case 0x05: /* SQSUB, UQSUB */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uqsub_qc, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqsub_qc, size);
}
return;
case 0x08: /* SSHL, USHL */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_ushl, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sshl, size);
}
return;
case 0x0c: /* SMAX, UMAX */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_umax, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_smax, size);
}
return;
case 0x0d: /* SMIN, UMIN */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_umin, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_smin, size);
}
return;
case 0xe: /* SABD, UABD */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uabd, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sabd, size);
}
return;
case 0xf: /* SABA, UABA */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uaba, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_saba, size);
}
return;
case 0x10: /* ADD, SUB */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_sub, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_add, size);
}
return;
case 0x13: /* MUL, PMUL */
if (!u) { /* MUL */
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_mul, size);
} else { /* PMUL */
gen_gvec_op3_ool(s, is_q, rd, rn, rm, 0, gen_helper_gvec_pmul_b);
}
return;
case 0x12: /* MLA, MLS */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_mls, size);
} else {
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_mla, size);
}
return;
case 0x16: /* SQDMULH, SQRDMULH */
{
static gen_helper_gvec_3_ptr * const fns[2][2] = {
{ gen_helper_neon_sqdmulh_h, gen_helper_neon_sqrdmulh_h },
{ gen_helper_neon_sqdmulh_s, gen_helper_neon_sqrdmulh_s },
};
gen_gvec_op3_qc(s, is_q, rd, rn, rm, fns[size - 1][u]);
}
return;
case 0x11:
if (!u) { /* CMTST */
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_cmtst, size);
return;
}
/* else CMEQ */
cond = TCG_COND_EQ;
goto do_gvec_cmp;
case 0x06: /* CMGT, CMHI */
cond = u ? TCG_COND_GTU : TCG_COND_GT;
goto do_gvec_cmp;
case 0x07: /* CMGE, CMHS */
cond = u ? TCG_COND_GEU : TCG_COND_GE;
do_gvec_cmp:
tcg_gen_gvec_cmp(cond, size, vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm),
is_q ? 16 : 8, vec_full_reg_size(s));
return;
}
if (size == 3) {
assert(is_q);
for (pass = 0; pass < 2; pass++) {
TCGv_i64 tcg_op1 = tcg_temp_new_i64();
TCGv_i64 tcg_op2 = tcg_temp_new_i64();
TCGv_i64 tcg_res = tcg_temp_new_i64();
read_vec_element(s, tcg_op1, rn, pass, MO_64);
read_vec_element(s, tcg_op2, rm, pass, MO_64);
handle_3same_64(s, opcode, u, tcg_res, tcg_op1, tcg_op2);
write_vec_element(s, tcg_res, rd, pass, MO_64);
}
} else {
for (pass = 0; pass < (is_q ? 4 : 2); pass++) {
TCGv_i32 tcg_op1 = tcg_temp_new_i32();
TCGv_i32 tcg_op2 = tcg_temp_new_i32();
TCGv_i32 tcg_res = tcg_temp_new_i32();
NeonGenTwoOpFn *genfn = NULL;
NeonGenTwoOpEnvFn *genenvfn = NULL;
read_vec_element_i32(s, tcg_op1, rn, pass, MO_32);
read_vec_element_i32(s, tcg_op2, rm, pass, MO_32);
switch (opcode) {
case 0x0: /* SHADD, UHADD */
{
static NeonGenTwoOpFn * const fns[3][2] = {
{ gen_helper_neon_hadd_s8, gen_helper_neon_hadd_u8 },
{ gen_helper_neon_hadd_s16, gen_helper_neon_hadd_u16 },
{ gen_helper_neon_hadd_s32, gen_helper_neon_hadd_u32 },
};
genfn = fns[size][u];
break;
}
case 0x2: /* SRHADD, URHADD */
{
static NeonGenTwoOpFn * const fns[3][2] = {
{ gen_helper_neon_rhadd_s8, gen_helper_neon_rhadd_u8 },
{ gen_helper_neon_rhadd_s16, gen_helper_neon_rhadd_u16 },
{ gen_helper_neon_rhadd_s32, gen_helper_neon_rhadd_u32 },
};
genfn = fns[size][u];
break;
}
case 0x4: /* SHSUB, UHSUB */
{
static NeonGenTwoOpFn * const fns[3][2] = {
{ gen_helper_neon_hsub_s8, gen_helper_neon_hsub_u8 },
{ gen_helper_neon_hsub_s16, gen_helper_neon_hsub_u16 },
{ gen_helper_neon_hsub_s32, gen_helper_neon_hsub_u32 },
};
genfn = fns[size][u];
break;
}
case 0x9: /* SQSHL, UQSHL */
{
static NeonGenTwoOpEnvFn * const fns[3][2] = {
{ gen_helper_neon_qshl_s8, gen_helper_neon_qshl_u8 },
{ gen_helper_neon_qshl_s16, gen_helper_neon_qshl_u16 },
{ gen_helper_neon_qshl_s32, gen_helper_neon_qshl_u32 },
};
genenvfn = fns[size][u];
break;
}
case 0xa: /* SRSHL, URSHL */
{
static NeonGenTwoOpFn * const fns[3][2] = {
{ gen_helper_neon_rshl_s8, gen_helper_neon_rshl_u8 },
{ gen_helper_neon_rshl_s16, gen_helper_neon_rshl_u16 },
{ gen_helper_neon_rshl_s32, gen_helper_neon_rshl_u32 },
};
genfn = fns[size][u];
break;
}
case 0xb: /* SQRSHL, UQRSHL */
{
static NeonGenTwoOpEnvFn * const fns[3][2] = {
{ gen_helper_neon_qrshl_s8, gen_helper_neon_qrshl_u8 },
{ gen_helper_neon_qrshl_s16, gen_helper_neon_qrshl_u16 },
{ gen_helper_neon_qrshl_s32, gen_helper_neon_qrshl_u32 },
};
genenvfn = fns[size][u];
break;
}
default:
g_assert_not_reached();
}
if (genenvfn) {
genenvfn(tcg_res, tcg_env, tcg_op1, tcg_op2);
} else {
genfn(tcg_res, tcg_op1, tcg_op2);
}
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
}
}
clear_vec_high(s, is_q, rd);
}
/* AdvSIMD three same
* 31 30 29 28 24 23 22 21 20 16 15 11 10 9 5 4 0
* +---+---+---+-----------+------+---+------+--------+---+------+------+
* | 0 | Q | U | 0 1 1 1 0 | size | 1 | Rm | opcode | 1 | Rn | Rd |
* +---+---+---+-----------+------+---+------+--------+---+------+------+
*/
@@ -11894,489 +11894,489 @@ static void handle_shll(DisasContext *s, bool is_q,
int size, int rn, int rd)
/* AdvSIMD two reg misc
* 31 30 29 28 24 23 22 21 17 16 12 11 10 9 5 4 0
* +---+---+---+-----------+------+-----------+--------+-----+------+------+
* | 0 | Q | U | 0 1 1 1 0 | size | 1 0 0 0 0 | opcode | 1 0 | Rn | Rd |
* +---+---+---+-----------+------+-----------+--------+-----+------+------+
*/
static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
{
int size = extract32(insn, 22, 2);
int opcode = extract32(insn, 12, 5);
bool u = extract32(insn, 29, 1);
bool is_q = extract32(insn, 30, 1);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
bool need_fpstatus = false;
int rmode = -1;
TCGv_i32 tcg_rmode;
TCGv_ptr tcg_fpstatus;
switch (opcode) {
case 0x0: /* REV64, REV32 */
case 0x1: /* REV16 */
handle_rev(s, opcode, u, is_q, size, rn, rd);
return;
case 0x5: /* CNT, NOT, RBIT */
if (u && size == 0) {
/* NOT */
break;
} else if (u && size == 1) {
/* RBIT */
break;
} else if (!u && size == 0) {
/* CNT */
break;
}
unallocated_encoding(s);
return;
case 0x12: /* XTN, XTN2, SQXTUN, SQXTUN2 */
case 0x14: /* SQXTN, SQXTN2, UQXTN, UQXTN2 */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_narrow(s, false, opcode, u, is_q, size, rn, rd);
return;
case 0x4: /* CLS, CLZ */
if (size == 3) {
unallocated_encoding(s);
return;
}
break;
case 0x2: /* SADDLP, UADDLP */
case 0x6: /* SADALP, UADALP */
if (size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_pairwise(s, opcode, u, is_q, size, rn, rd);
return;
case 0x13: /* SHLL, SHLL2 */
if (u == 0 || size == 3) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_shll(s, is_q, size, rn, rd);
return;
case 0xa: /* CMLT */
if (u == 1) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x8: /* CMGT, CMGE */
case 0x9: /* CMEQ, CMLE */
case 0xb: /* ABS, NEG */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x3: /* SUQADD, USQADD */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_satacc(s, false, u, is_q, size, rn, rd);
return;
case 0x7: /* SQABS, SQNEG */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0xc ... 0xf:
case 0x16 ... 0x1f:
{
/* Floating point: U, size[1] and opcode indicate operation;
* size[0] indicates single or double precision.
*/
int is_double = extract32(size, 0, 1);
opcode |= (extract32(size, 1, 1) << 5) | (u << 6);
size = is_double ? 3 : 2;
switch (opcode) {
case 0x2f: /* FABS */
case 0x6f: /* FNEG */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x1d: /* SCVTF */
case 0x5d: /* UCVTF */
{
bool is_signed = (opcode == 0x1d) ? true : false;
int elements = is_double ? 2 : is_q ? 4 : 2;
if (is_double && !is_q) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_simd_intfp_conv(s, rd, rn, elements, is_signed, 0, size);
return;
}
case 0x2c: /* FCMGT (zero) */
case 0x2d: /* FCMEQ (zero) */
case 0x2e: /* FCMLT (zero) */
case 0x6c: /* FCMGE (zero) */
case 0x6d: /* FCMLE (zero) */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
handle_2misc_fcmp_zero(s, opcode, false, u, is_q, size, rn, rd);
return;
case 0x7f: /* FSQRT */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x1a: /* FCVTNS */
case 0x1b: /* FCVTMS */
case 0x3a: /* FCVTPS */
case 0x3b: /* FCVTZS */
case 0x5a: /* FCVTNU */
case 0x5b: /* FCVTMU */
case 0x7a: /* FCVTPU */
case 0x7b: /* FCVTZU */
need_fpstatus = true;
rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1);
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x5c: /* FCVTAU */
case 0x1c: /* FCVTAS */
need_fpstatus = true;
rmode = FPROUNDING_TIEAWAY;
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x3c: /* URECPE */
if (size == 3) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x3d: /* FRECPE */
case 0x7d: /* FRSQRTE */
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_reciprocal(s, opcode, false, u, is_q, size, rn, rd);
return;
case 0x56: /* FCVTXN, FCVTXN2 */
if (size == 2) {
unallocated_encoding(s);
return;
}
- /* fall through */
+ fallthrough;
case 0x16: /* FCVTN, FCVTN2 */
/* handle_2misc_narrow does a 2*size -> size operation, but these
* instructions encode the source size rather than dest size.
*/
if (!fp_access_check(s)) {
return;
}
handle_2misc_narrow(s, false, opcode, 0, is_q, size - 1, rn, rd);
return;
case 0x36: /* BFCVTN, BFCVTN2 */
if (!dc_isar_feature(aa64_bf16, s) || size != 2) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
handle_2misc_narrow(s, false, opcode, 0, is_q, size - 1, rn, rd);
return;
case 0x17: /* FCVTL, FCVTL2 */
if (!fp_access_check(s)) {
return;
}
handle_2misc_widening(s, opcode, is_q, size, rn, rd);
return;
case 0x18: /* FRINTN */
case 0x19: /* FRINTM */
case 0x38: /* FRINTP */
case 0x39: /* FRINTZ */
rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1);
- /* fall through */
+ fallthrough;
case 0x59: /* FRINTX */
case 0x79: /* FRINTI */
need_fpstatus = true;
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x58: /* FRINTA */
rmode = FPROUNDING_TIEAWAY;
need_fpstatus = true;
if (size == 3 && !is_q) {
unallocated_encoding(s);
return;
}
break;
case 0x7c: /* URSQRTE */
if (size == 3) {
unallocated_encoding(s);
return;
}
break;
case 0x1e: /* FRINT32Z */
case 0x1f: /* FRINT64Z */
rmode = FPROUNDING_ZERO;
- /* fall through */
+ fallthrough;
case 0x5e: /* FRINT32X */
case 0x5f: /* FRINT64X */
need_fpstatus = true;
if ((size == 3 && !is_q) || !dc_isar_feature(aa64_frint, s)) {
unallocated_encoding(s);
return;
}
break;
default:
unallocated_encoding(s);
return;
}
break;
}
default:
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
if (need_fpstatus || rmode >= 0) {
tcg_fpstatus = fpstatus_ptr(FPST_FPCR);
} else {
tcg_fpstatus = NULL;
}
if (rmode >= 0) {
tcg_rmode = gen_set_rmode(rmode, tcg_fpstatus);
} else {
tcg_rmode = NULL;
}
switch (opcode) {
case 0x5:
if (u && size == 0) { /* NOT */
gen_gvec_fn2(s, is_q, rd, rn, tcg_gen_gvec_not, 0);
return;
}
break;
case 0x8: /* CMGT, CMGE */
if (u) {
gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cge0, size);
} else {
gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cgt0, size);
}
return;
case 0x9: /* CMEQ, CMLE */
if (u) {
gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cle0, size);
} else {
gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_ceq0, size);
}
return;
case 0xa: /* CMLT */
gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_clt0, size);
return;
case 0xb:
if (u) { /* ABS, NEG */
gen_gvec_fn2(s, is_q, rd, rn, tcg_gen_gvec_neg, size);
} else {
gen_gvec_fn2(s, is_q, rd, rn, tcg_gen_gvec_abs, size);
}
return;
}
if (size == 3) {
/* All 64-bit element operations can be shared with scalar 2misc */
int pass;
/* Coverity claims (size == 3 && !is_q) has been eliminated
* from all paths leading to here.
*/
tcg_debug_assert(is_q);
for (pass = 0; pass < 2; pass++) {
TCGv_i64 tcg_op = tcg_temp_new_i64();
TCGv_i64 tcg_res = tcg_temp_new_i64();
read_vec_element(s, tcg_op, rn, pass, MO_64);
handle_2misc_64(s, opcode, u, tcg_res, tcg_op,
tcg_rmode, tcg_fpstatus);
write_vec_element(s, tcg_res, rd, pass, MO_64);
}
} else {
int pass;
for (pass = 0; pass < (is_q ? 4 : 2); pass++) {
TCGv_i32 tcg_op = tcg_temp_new_i32();
TCGv_i32 tcg_res = tcg_temp_new_i32();
read_vec_element_i32(s, tcg_op, rn, pass, MO_32);
if (size == 2) {
/* Special cases for 32 bit elements */
switch (opcode) {
case 0x4: /* CLS */
if (u) {
tcg_gen_clzi_i32(tcg_res, tcg_op, 32);
} else {
tcg_gen_clrsb_i32(tcg_res, tcg_op);
}
break;
case 0x7: /* SQABS, SQNEG */
if (u) {
gen_helper_neon_qneg_s32(tcg_res, tcg_env, tcg_op);
} else {
gen_helper_neon_qabs_s32(tcg_res, tcg_env, tcg_op);
}
break;
case 0x2f: /* FABS */
gen_helper_vfp_abss(tcg_res, tcg_op);
break;
case 0x6f: /* FNEG */
gen_helper_vfp_negs(tcg_res, tcg_op);
break;
case 0x7f: /* FSQRT */
gen_helper_vfp_sqrts(tcg_res, tcg_op, tcg_env);
break;
case 0x1a: /* FCVTNS */
case 0x1b: /* FCVTMS */
case 0x1c: /* FCVTAS */
case 0x3a: /* FCVTPS */
case 0x3b: /* FCVTZS */
gen_helper_vfp_tosls(tcg_res, tcg_op,
tcg_constant_i32(0), tcg_fpstatus);
break;
case 0x5a: /* FCVTNU */
case 0x5b: /* FCVTMU */
case 0x5c: /* FCVTAU */
case 0x7a: /* FCVTPU */
case 0x7b: /* FCVTZU */
gen_helper_vfp_touls(tcg_res, tcg_op,
tcg_constant_i32(0), tcg_fpstatus);
break;
case 0x18: /* FRINTN */
case 0x19: /* FRINTM */
case 0x38: /* FRINTP */
case 0x39: /* FRINTZ */
case 0x58: /* FRINTA */
case 0x79: /* FRINTI */
gen_helper_rints(tcg_res, tcg_op, tcg_fpstatus);
break;
case 0x59: /* FRINTX */
gen_helper_rints_exact(tcg_res, tcg_op, tcg_fpstatus);
break;
case 0x7c: /* URSQRTE */
gen_helper_rsqrte_u32(tcg_res, tcg_op);
break;
case 0x1e: /* FRINT32Z */
case 0x5e: /* FRINT32X */
gen_helper_frint32_s(tcg_res, tcg_op, tcg_fpstatus);
break;
case 0x1f: /* FRINT64Z */
case 0x5f: /* FRINT64X */
gen_helper_frint64_s(tcg_res, tcg_op, tcg_fpstatus);
break;
default:
g_assert_not_reached();
}
} else {
/* Use helpers for 8 and 16 bit elements */
switch (opcode) {
case 0x5: /* CNT, RBIT */
/* For these two insns size is part of the opcode specifier
* (handled earlier); they always operate on byte elements.
*/
if (u) {
gen_helper_neon_rbit_u8(tcg_res, tcg_op);
} else {
gen_helper_neon_cnt_u8(tcg_res, tcg_op);
}
break;
case 0x7: /* SQABS, SQNEG */
{
NeonGenOneOpEnvFn *genfn;
static NeonGenOneOpEnvFn * const fns[2][2] = {
{ gen_helper_neon_qabs_s8, gen_helper_neon_qneg_s8 },
{ gen_helper_neon_qabs_s16, gen_helper_neon_qneg_s16 },
};
genfn = fns[size][u];
genfn(tcg_res, tcg_env, tcg_op);
break;
}
case 0x4: /* CLS, CLZ */
if (u) {
if (size == 0) {
gen_helper_neon_clz_u8(tcg_res, tcg_op);
} else {
gen_helper_neon_clz_u16(tcg_res, tcg_op);
}
} else {
if (size == 0) {
gen_helper_neon_cls_s8(tcg_res, tcg_op);
} else {
gen_helper_neon_cls_s16(tcg_res, tcg_op);
}
}
break;
default:
g_assert_not_reached();
}
}
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
}
}
clear_vec_high(s, is_q, rd);
if (tcg_rmode) {
gen_restore_rmode(tcg_rmode, tcg_fpstatus);
}
}
/* AdvSIMD [scalar] two register miscellaneous (FP16)
*
* 31 30 29 28 27 24 23 22 21 17 16 12 11 10 9 5 4 0
* +---+---+---+---+---------+---+-------------+--------+-----+------+------+
* | 0 | Q | U | S | 1 1 1 0 | a | 1 1 1 1 0 0 | opcode | 1 0 | Rn | Rd |
* +---+---+---+---+---------+---+-------------+--------+-----+------+------+
* mask: 1000 1111 0111 1110 0000 1100 0000 0000 0x8f7e 0c00
* val: 0000 1110 0111 1000 0000 1000 0000 0000 0x0e78 0800
*
* This actually covers two groups where scalar access is governed by
* bit 28. A bunch of the instructions (float to integral) only exist
* in the vector form and are un-allocated for the scalar decode. Also
* in the scalar decode Q is always 1.
*/
@@ -12637,716 +12637,716 @@ static void
disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn)
/* AdvSIMD scalar x indexed element
* 31 30 29 28 24 23 22 21 20 19 16 15 12 11 10 9 5 4 0
* +-----+---+-----------+------+---+---+------+-----+---+---+------+------+
* | 0 1 | U | 1 1 1 1 1 | size | L | M | Rm | opc | H | 0 | Rn | Rd |
* +-----+---+-----------+------+---+---+------+-----+---+---+------+------+
* AdvSIMD vector x indexed element
* 31 30 29 28 24 23 22 21 20 19 16 15 12 11 10 9 5 4 0
* +---+---+---+-----------+------+---+---+------+-----+---+---+------+------+
* | 0 | Q | U | 0 1 1 1 1 | size | L | M | Rm | opc | H | 0 | Rn | Rd |
* +---+---+---+-----------+------+---+---+------+-----+---+---+------+------+
*/
static void disas_simd_indexed(DisasContext *s, uint32_t insn)
{
/* This encoding has two kinds of instruction:
* normal, where we perform elt x idxelt => elt for each
* element in the vector
* long, where we perform elt x idxelt and generate a result of
* double the width of the input element
* The long ops have a 'part' specifier (ie come in INSN, INSN2 pairs).
*/
bool is_scalar = extract32(insn, 28, 1);
bool is_q = extract32(insn, 30, 1);
bool u = extract32(insn, 29, 1);
int size = extract32(insn, 22, 2);
int l = extract32(insn, 21, 1);
int m = extract32(insn, 20, 1);
/* Note that the Rm field here is only 4 bits, not 5 as it usually is */
int rm = extract32(insn, 16, 4);
int opcode = extract32(insn, 12, 4);
int h = extract32(insn, 11, 1);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
bool is_long = false;
int is_fp = 0;
bool is_fp16 = false;
int index;
TCGv_ptr fpst;
switch (16 * u + opcode) {
case 0x08: /* MUL */
case 0x10: /* MLA */
case 0x14: /* MLS */
if (is_scalar) {
unallocated_encoding(s);
return;
}
break;
case 0x02: /* SMLAL, SMLAL2 */
case 0x12: /* UMLAL, UMLAL2 */
case 0x06: /* SMLSL, SMLSL2 */
case 0x16: /* UMLSL, UMLSL2 */
case 0x0a: /* SMULL, SMULL2 */
case 0x1a: /* UMULL, UMULL2 */
if (is_scalar) {
unallocated_encoding(s);
return;
}
is_long = true;
break;
case 0x03: /* SQDMLAL, SQDMLAL2 */
case 0x07: /* SQDMLSL, SQDMLSL2 */
case 0x0b: /* SQDMULL, SQDMULL2 */
is_long = true;
break;
case 0x0c: /* SQDMULH */
case 0x0d: /* SQRDMULH */
break;
case 0x01: /* FMLA */
case 0x05: /* FMLS */
case 0x09: /* FMUL */
case 0x19: /* FMULX */
is_fp = 1;
break;
case 0x1d: /* SQRDMLAH */
case 0x1f: /* SQRDMLSH */
if (!dc_isar_feature(aa64_rdm, s)) {
unallocated_encoding(s);
return;
}
break;
case 0x0e: /* SDOT */
case 0x1e: /* UDOT */
if (is_scalar || size != MO_32 || !dc_isar_feature(aa64_dp, s)) {
unallocated_encoding(s);
return;
}
break;
case 0x0f:
switch (size) {
case 0: /* SUDOT */
case 2: /* USDOT */
if (is_scalar || !dc_isar_feature(aa64_i8mm, s)) {
unallocated_encoding(s);
return;
}
size = MO_32;
break;
case 1: /* BFDOT */
if (is_scalar || !dc_isar_feature(aa64_bf16, s)) {
unallocated_encoding(s);
return;
}
size = MO_32;
break;
case 3: /* BFMLAL{B,T} */
if (is_scalar || !dc_isar_feature(aa64_bf16, s)) {
unallocated_encoding(s);
return;
}
/* can't set is_fp without other incorrect size checks */
size = MO_16;
break;
default:
unallocated_encoding(s);
return;
}
break;
case 0x11: /* FCMLA #0 */
case 0x13: /* FCMLA #90 */
case 0x15: /* FCMLA #180 */
case 0x17: /* FCMLA #270 */
if (is_scalar || !dc_isar_feature(aa64_fcma, s)) {
unallocated_encoding(s);
return;
}
is_fp = 2;
break;
case 0x00: /* FMLAL */
case 0x04: /* FMLSL */
case 0x18: /* FMLAL2 */
case 0x1c: /* FMLSL2 */
if (is_scalar || size != MO_32 || !dc_isar_feature(aa64_fhm, s)) {
unallocated_encoding(s);
return;
}
size = MO_16;
/* is_fp, but we pass tcg_env not fp_status. */
break;
default:
unallocated_encoding(s);
return;
}
switch (is_fp) {
case 1: /* normal fp */
/* convert insn encoded size to MemOp size */
switch (size) {
case 0: /* half-precision */
size = MO_16;
is_fp16 = true;
break;
case MO_32: /* single precision */
case MO_64: /* double precision */
break;
default:
unallocated_encoding(s);
return;
}
break;
case 2: /* complex fp */
/* Each indexable element is a complex pair. */
size += 1;
switch (size) {
case MO_32:
if (h && !is_q) {
unallocated_encoding(s);
return;
}
is_fp16 = true;
break;
case MO_64:
break;
default:
unallocated_encoding(s);
return;
}
break;
default: /* integer */
switch (size) {
case MO_8:
case MO_64:
unallocated_encoding(s);
return;
}
break;
}
if (is_fp16 && !dc_isar_feature(aa64_fp16, s)) {
unallocated_encoding(s);
return;
}
/* Given MemOp size, adjust register and indexing. */
switch (size) {
case MO_16:
index = h << 2 | l << 1 | m;
break;
case MO_32:
index = h << 1 | l;
rm |= m << 4;
break;
case MO_64:
if (l || !is_q) {
unallocated_encoding(s);
return;
}
index = h;
rm |= m << 4;
break;
default:
g_assert_not_reached();
}
if (!fp_access_check(s)) {
return;
}
if (is_fp) {
fpst = fpstatus_ptr(is_fp16 ? FPST_FPCR_F16 : FPST_FPCR);
} else {
fpst = NULL;
}
switch (16 * u + opcode) {
case 0x0e: /* SDOT */
case 0x1e: /* UDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
u ? gen_helper_gvec_udot_idx_b
: gen_helper_gvec_sdot_idx_b);
return;
case 0x0f:
switch (extract32(insn, 22, 2)) {
case 0: /* SUDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
gen_helper_gvec_sudot_idx_b);
return;
case 1: /* BFDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
gen_helper_gvec_bfdot_idx);
return;
case 2: /* USDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
gen_helper_gvec_usdot_idx_b);
return;
case 3: /* BFMLAL{B,T} */
gen_gvec_op4_fpst(s, 1, rd, rn, rm, rd, 0, (index << 1) | is_q,
gen_helper_gvec_bfmlal_idx);
return;
}
g_assert_not_reached();
case 0x11: /* FCMLA #0 */
case 0x13: /* FCMLA #90 */
case 0x15: /* FCMLA #180 */
case 0x17: /* FCMLA #270 */
{
int rot = extract32(insn, 13, 2);
int data = (index << 2) | rot;
tcg_gen_gvec_4_ptr(vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm),
vec_full_reg_offset(s, rd), fpst,
is_q ? 16 : 8, vec_full_reg_size(s), data,
size == MO_64
? gen_helper_gvec_fcmlas_idx
: gen_helper_gvec_fcmlah_idx);
}
return;
case 0x00: /* FMLAL */
case 0x04: /* FMLSL */
case 0x18: /* FMLAL2 */
case 0x1c: /* FMLSL2 */
{
int is_s = extract32(opcode, 2, 1);
int is_2 = u;
int data = (index << 2) | (is_2 << 1) | is_s;
tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm), tcg_env,
is_q ? 16 : 8, vec_full_reg_size(s),
data, gen_helper_gvec_fmlal_idx_a64);
}
return;
case 0x08: /* MUL */
if (!is_long && !is_scalar) {
static gen_helper_gvec_3 * const fns[3] = {
gen_helper_gvec_mul_idx_h,
gen_helper_gvec_mul_idx_s,
gen_helper_gvec_mul_idx_d,
};
tcg_gen_gvec_3_ool(vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm),
is_q ? 16 : 8, vec_full_reg_size(s),
index, fns[size - 1]);
return;
}
break;
case 0x10: /* MLA */
if (!is_long && !is_scalar) {
static gen_helper_gvec_4 * const fns[3] = {
gen_helper_gvec_mla_idx_h,
gen_helper_gvec_mla_idx_s,
gen_helper_gvec_mla_idx_d,
};
tcg_gen_gvec_4_ool(vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm),
vec_full_reg_offset(s, rd),
is_q ? 16 : 8, vec_full_reg_size(s),
index, fns[size - 1]);
return;
}
break;
case 0x14: /* MLS */
if (!is_long && !is_scalar) {
static gen_helper_gvec_4 * const fns[3] = {
gen_helper_gvec_mls_idx_h,
gen_helper_gvec_mls_idx_s,
gen_helper_gvec_mls_idx_d,
};
tcg_gen_gvec_4_ool(vec_full_reg_offset(s, rd),
vec_full_reg_offset(s, rn),
vec_full_reg_offset(s, rm),
vec_full_reg_offset(s, rd),
is_q ? 16 : 8, vec_full_reg_size(s),
index, fns[size - 1]);
return;
}
break;
}
if (size == 3) {
TCGv_i64 tcg_idx = tcg_temp_new_i64();
int pass;
assert(is_fp && is_q && !is_long);
read_vec_element(s, tcg_idx, rm, index, MO_64);
for (pass = 0; pass < (is_scalar ? 1 : 2); pass++) {
TCGv_i64 tcg_op = tcg_temp_new_i64();
TCGv_i64 tcg_res = tcg_temp_new_i64();
read_vec_element(s, tcg_op, rn, pass, MO_64);
switch (16 * u + opcode) {
case 0x05: /* FMLS */
/* As usual for ARM, separate negation for fused multiply-add
*/
gen_helper_vfp_negd(tcg_op, tcg_op);
- /* fall through */
+ fallthrough;
case 0x01: /* FMLA */
read_vec_element(s, tcg_res, rd, pass, MO_64);
gen_helper_vfp_muladdd(tcg_res, tcg_op, tcg_idx, tcg_res,
fpst);
break;
case 0x09: /* FMUL */
gen_helper_vfp_muld(tcg_res, tcg_op, tcg_idx, fpst);
break;
case 0x19: /* FMULX */
gen_helper_vfp_mulxd(tcg_res, tcg_op, tcg_idx, fpst);
break;
default:
g_assert_not_reached();
}
write_vec_element(s, tcg_res, rd, pass, MO_64);
}
clear_vec_high(s, !is_scalar, rd);
} else if (!is_long) {
/* 32 bit floating point, or 16 or 32 bit integer.
* For the 16 bit scalar case we use the usual Neon helpers and
* rely on the fact that 0 op 0 == 0 with no side effects.
*/
TCGv_i32 tcg_idx = tcg_temp_new_i32();
int pass, maxpasses;
if (is_scalar) {
maxpasses = 1;
} else {
maxpasses = is_q ? 4 : 2;
}
read_vec_element_i32(s, tcg_idx, rm, index, size);
if (size == 1 && !is_scalar) {
/* The simplest way to handle the 16x16 indexed ops is to duplicate
* the index into both halves of the 32 bit tcg_idx and then use
* the usual Neon helpers.
*/
tcg_gen_deposit_i32(tcg_idx, tcg_idx, tcg_idx, 16, 16);
}
for (pass = 0; pass < maxpasses; pass++) {
TCGv_i32 tcg_op = tcg_temp_new_i32();
TCGv_i32 tcg_res = tcg_temp_new_i32();
read_vec_element_i32(s, tcg_op, rn, pass, is_scalar ? size :
MO_32);
switch (16 * u + opcode) {
case 0x08: /* MUL */
case 0x10: /* MLA */
case 0x14: /* MLS */
{
static NeonGenTwoOpFn * const fns[2][2] = {
{ gen_helper_neon_add_u16, gen_helper_neon_sub_u16 },
{ tcg_gen_add_i32, tcg_gen_sub_i32 },
};
NeonGenTwoOpFn *genfn;
bool is_sub = opcode == 0x4;
if (size == 1) {
gen_helper_neon_mul_u16(tcg_res, tcg_op, tcg_idx);
} else {
tcg_gen_mul_i32(tcg_res, tcg_op, tcg_idx);
}
if (opcode == 0x8) {
break;
}
read_vec_element_i32(s, tcg_op, rd, pass, MO_32);
genfn = fns[size - 1][is_sub];
genfn(tcg_res, tcg_op, tcg_res);
break;
}
case 0x05: /* FMLS */
case 0x01: /* FMLA */
read_vec_element_i32(s, tcg_res, rd, pass,
is_scalar ? size : MO_32);
switch (size) {
case 1:
if (opcode == 0x5) {
/* As usual for ARM, separate negation for fused
* multiply-add */
tcg_gen_xori_i32(tcg_op, tcg_op, 0x80008000);
}
if (is_scalar) {
gen_helper_advsimd_muladdh(tcg_res, tcg_op, tcg_idx,
tcg_res, fpst);
} else {
gen_helper_advsimd_muladd2h(tcg_res, tcg_op, tcg_idx,
tcg_res, fpst);
}
break;
case 2:
if (opcode == 0x5) {
/* As usual for ARM, separate negation for
* fused multiply-add */
tcg_gen_xori_i32(tcg_op, tcg_op, 0x80000000);
}
gen_helper_vfp_muladds(tcg_res, tcg_op, tcg_idx,
tcg_res, fpst);
break;
default:
g_assert_not_reached();
}
break;
case 0x09: /* FMUL */
switch (size) {
case 1:
if (is_scalar) {
gen_helper_advsimd_mulh(tcg_res, tcg_op,
tcg_idx, fpst);
} else {
gen_helper_advsimd_mul2h(tcg_res, tcg_op,
tcg_idx, fpst);
}
break;
case 2:
gen_helper_vfp_muls(tcg_res, tcg_op, tcg_idx, fpst);
break;
default:
g_assert_not_reached();
}
break;
case 0x19: /* FMULX */
switch (size) {
case 1:
if (is_scalar) {
gen_helper_advsimd_mulxh(tcg_res, tcg_op,
tcg_idx, fpst);
} else {
gen_helper_advsimd_mulx2h(tcg_res, tcg_op,
tcg_idx, fpst);
}
break;
case 2:
gen_helper_vfp_mulxs(tcg_res, tcg_op, tcg_idx, fpst);
break;
default:
g_assert_not_reached();
}
break;
case 0x0c: /* SQDMULH */
if (size == 1) {
gen_helper_neon_qdmulh_s16(tcg_res, tcg_env,
tcg_op, tcg_idx);
} else {
gen_helper_neon_qdmulh_s32(tcg_res, tcg_env,
tcg_op, tcg_idx);
}
break;
case 0x0d: /* SQRDMULH */
if (size == 1) {
gen_helper_neon_qrdmulh_s16(tcg_res, tcg_env,
tcg_op, tcg_idx);
} else {
gen_helper_neon_qrdmulh_s32(tcg_res, tcg_env,
tcg_op, tcg_idx);
}
break;
case 0x1d: /* SQRDMLAH */
read_vec_element_i32(s, tcg_res, rd, pass,
is_scalar ? size : MO_32);
if (size == 1) {
gen_helper_neon_qrdmlah_s16(tcg_res, tcg_env,
tcg_op, tcg_idx, tcg_res);
} else {
gen_helper_neon_qrdmlah_s32(tcg_res, tcg_env,
tcg_op, tcg_idx, tcg_res);
}
break;
case 0x1f: /* SQRDMLSH */
read_vec_element_i32(s, tcg_res, rd, pass,
is_scalar ? size : MO_32);
if (size == 1) {
gen_helper_neon_qrdmlsh_s16(tcg_res, tcg_env,
tcg_op, tcg_idx, tcg_res);
} else {
gen_helper_neon_qrdmlsh_s32(tcg_res, tcg_env,
tcg_op, tcg_idx, tcg_res);
}
break;
default:
g_assert_not_reached();
}
if (is_scalar) {
write_fp_sreg(s, rd, tcg_res);
} else {
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
}
}
clear_vec_high(s, is_q, rd);
} else {
/* long ops: 16x16->32 or 32x32->64 */
TCGv_i64 tcg_res[2];
int pass;
bool satop = extract32(opcode, 0, 1);
MemOp memop = MO_32;
if (satop || !u) {
memop |= MO_SIGN;
}
if (size == 2) {
TCGv_i64 tcg_idx = tcg_temp_new_i64();
read_vec_element(s, tcg_idx, rm, index, memop);
for (pass = 0; pass < (is_scalar ? 1 : 2); pass++) {
TCGv_i64 tcg_op = tcg_temp_new_i64();
TCGv_i64 tcg_passres;
int passelt;
if (is_scalar) {
passelt = 0;
} else {
passelt = pass + (is_q * 2);
}
read_vec_element(s, tcg_op, rn, passelt, memop);
tcg_res[pass] = tcg_temp_new_i64();
if (opcode == 0xa || opcode == 0xb) {
/* Non-accumulating ops */
tcg_passres = tcg_res[pass];
} else {
tcg_passres = tcg_temp_new_i64();
}
tcg_gen_mul_i64(tcg_passres, tcg_op, tcg_idx);
if (satop) {
/* saturating, doubling */
gen_helper_neon_addl_saturate_s64(tcg_passres, tcg_env,
tcg_passres,
tcg_passres);
}
if (opcode == 0xa || opcode == 0xb) {
continue;
}
/* Accumulating op: handle accumulate step */
read_vec_element(s, tcg_res[pass], rd, pass, MO_64);
switch (opcode) {
case 0x2: /* SMLAL, SMLAL2, UMLAL, UMLAL2 */
tcg_gen_add_i64(tcg_res[pass], tcg_res[pass], tcg_passres);
break;
case 0x6: /* SMLSL, SMLSL2, UMLSL, UMLSL2 */
tcg_gen_sub_i64(tcg_res[pass], tcg_res[pass], tcg_passres);
break;
case 0x7: /* SQDMLSL, SQDMLSL2 */
tcg_gen_neg_i64(tcg_passres, tcg_passres);
- /* fall through */
+ fallthrough;
case 0x3: /* SQDMLAL, SQDMLAL2 */
gen_helper_neon_addl_saturate_s64(tcg_res[pass], tcg_env,
tcg_res[pass],
tcg_passres);
break;
default:
g_assert_not_reached();
}
}
clear_vec_high(s, !is_scalar, rd);
} else {
TCGv_i32 tcg_idx = tcg_temp_new_i32();
assert(size == 1);
read_vec_element_i32(s, tcg_idx, rm, index, size);
if (!is_scalar) {
/* The simplest way to handle the 16x16 indexed ops is to
* duplicate the index into both halves of the 32 bit tcg_idx
* and then use the usual Neon helpers.
*/
tcg_gen_deposit_i32(tcg_idx, tcg_idx, tcg_idx, 16, 16);
}
for (pass = 0; pass < (is_scalar ? 1 : 2); pass++) {
TCGv_i32 tcg_op = tcg_temp_new_i32();
TCGv_i64 tcg_passres;
if (is_scalar) {
read_vec_element_i32(s, tcg_op, rn, pass, size);
} else {
read_vec_element_i32(s, tcg_op, rn,
pass + (is_q * 2), MO_32);
}
tcg_res[pass] = tcg_temp_new_i64();
if (opcode == 0xa || opcode == 0xb) {
/* Non-accumulating ops */
tcg_passres = tcg_res[pass];
} else {
tcg_passres = tcg_temp_new_i64();
}
if (memop & MO_SIGN) {
gen_helper_neon_mull_s16(tcg_passres, tcg_op, tcg_idx);
} else {
gen_helper_neon_mull_u16(tcg_passres, tcg_op, tcg_idx);
}
if (satop) {
gen_helper_neon_addl_saturate_s32(tcg_passres, tcg_env,
tcg_passres,
tcg_passres);
}
if (opcode == 0xa || opcode == 0xb) {
continue;
}
/* Accumulating op: handle accumulate step */
read_vec_element(s, tcg_res[pass], rd, pass, MO_64);
switch (opcode) {
case 0x2: /* SMLAL, SMLAL2, UMLAL, UMLAL2 */
gen_helper_neon_addl_u32(tcg_res[pass], tcg_res[pass],
tcg_passres);
break;
case 0x6: /* SMLSL, SMLSL2, UMLSL, UMLSL2 */
gen_helper_neon_subl_u32(tcg_res[pass], tcg_res[pass],
tcg_passres);
break;
case 0x7: /* SQDMLSL, SQDMLSL2 */
gen_helper_neon_negl_u32(tcg_passres, tcg_passres);
- /* fall through */
+ fallthrough;
case 0x3: /* SQDMLAL, SQDMLAL2 */
gen_helper_neon_addl_saturate_s32(tcg_res[pass], tcg_env,
tcg_res[pass],
tcg_passres);
break;
default:
g_assert_not_reached();
}
}
if (is_scalar) {
tcg_gen_ext32u_i64(tcg_res[0], tcg_res[0]);
}
}
if (is_scalar) {
tcg_res[1] = tcg_constant_i64(0);
}
for (pass = 0; pass < 2; pass++) {
write_vec_element(s, tcg_res[pass], rd, pass, MO_64);
}
}
}
/* Crypto AES
* 31 24 23 22 21 17 16 12 11 10 9 5 4 0
* +-----------------+------+-----------+--------+-----+------+------+
* | 0 1 0 0 1 1 1 0 | size | 1 0 1 0 0 | opcode | 1 0 | Rn | Rd |
* +-----------------+------+-----------+--------+-----+------+------+
*/
@@ -14202,67 +14202,67 @@ static void
aarch64_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
static void aarch64_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
if (unlikely(dc->ss_active)) {
/* Note that this means single stepping WFI doesn't halt the CPU.
* For conditional branch insns this is harmless unreachable code as
* gen_goto_tb() has already handled emitting the debug exception
* (and thus a tb-jump is not possible when singlestepping).
*/
switch (dc->base.is_jmp) {
default:
gen_a64_update_pc(dc, 4);
- /* fall through */
+ fallthrough;
case DISAS_EXIT:
case DISAS_JUMP:
gen_step_complete_exception(dc);
break;
case DISAS_NORETURN:
break;
}
} else {
switch (dc->base.is_jmp) {
case DISAS_NEXT:
case DISAS_TOO_MANY:
gen_goto_tb(dc, 1, 4);
break;
default:
case DISAS_UPDATE_EXIT:
gen_a64_update_pc(dc, 4);
- /* fall through */
+ fallthrough;
case DISAS_EXIT:
tcg_gen_exit_tb(NULL, 0);
break;
case DISAS_UPDATE_NOCHAIN:
gen_a64_update_pc(dc, 4);
- /* fall through */
+ fallthrough;
case DISAS_JUMP:
tcg_gen_lookup_and_goto_ptr();
break;
case DISAS_NORETURN:
case DISAS_SWI:
break;
case DISAS_WFE:
gen_a64_update_pc(dc, 4);
gen_helper_wfe(tcg_env);
break;
case DISAS_YIELD:
gen_a64_update_pc(dc, 4);
gen_helper_yield(tcg_env);
break;
case DISAS_WFI:
/*
* This is a special case because we don't want to just halt
* the CPU if trying to debug across a WFI.
*/
gen_a64_update_pc(dc, 4);
gen_helper_wfi(tcg_env, tcg_constant_i32(4));
/*
* The helper doesn't necessarily throw an exception, but we
* must go back to the main loop to check for interrupts anyway.
*/
tcg_gen_exit_tb(NULL, 0);
break;
}
}
}
diff --git a/target/arm/tcg/translate-m-nocp.c
b/target/arm/tcg/translate-m-nocp.c
index f564d06ccf..42d6f516ba 100644
--- a/target/arm/tcg/translate-m-nocp.c
+++ b/target/arm/tcg/translate-m-nocp.c
@@ -305,122 +305,122 @@ static void gen_branch_fpInactive(DisasContext *s,
TCGCond cond,
static bool gen_M_fp_sysreg_write(DisasContext *s, int regno,
fp_sysreg_loadfn *loadfn,
void *opaque)
{
/* Do a write to an M-profile floating point system register */
TCGv_i32 tmp;
TCGLabel *lab_end = NULL;
switch (fp_sysreg_checks(s, regno)) {
case FPSysRegCheckFailed:
return false;
case FPSysRegCheckDone:
return true;
case FPSysRegCheckContinue:
break;
}
switch (regno) {
case ARM_VFP_FPSCR:
tmp = loadfn(s, opaque, true);
gen_helper_vfp_set_fpscr(tcg_env, tmp);
gen_lookup_tb(s);
break;
case ARM_VFP_FPSCR_NZCVQC:
{
TCGv_i32 fpscr;
tmp = loadfn(s, opaque, true);
if (dc_isar_feature(aa32_mve, s)) {
/* QC is only present for MVE; otherwise RES0 */
TCGv_i32 qc = tcg_temp_new_i32();
tcg_gen_andi_i32(qc, tmp, FPCR_QC);
/*
* The 4 vfp.qc[] fields need only be "zero" vs "non-zero";
* here writing the same value into all elements is simplest.
*/
tcg_gen_gvec_dup_i32(MO_32, offsetof(CPUARMState, vfp.qc),
16, 16, qc);
}
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
fpscr = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(fpscr, fpscr, ~FPCR_NZCV_MASK);
tcg_gen_or_i32(fpscr, fpscr, tmp);
store_cpu_field(fpscr, vfp.xregs[ARM_VFP_FPSCR]);
break;
}
case ARM_VFP_FPCXT_NS:
{
TCGLabel *lab_active = gen_new_label();
lab_end = gen_new_label();
gen_branch_fpInactive(s, TCG_COND_EQ, lab_active);
/*
* fpInactive case: write is a NOP, so only do side effects
* like register writeback before we branch to end
*/
loadfn(s, opaque, false);
tcg_gen_br(lab_end);
gen_set_label(lab_active);
/*
* !fpInactive: if FPU disabled, take NOCP exception;
* otherwise PreserveFPState(), and then FPCXT_NS writes
* behave the same as FPCXT_S writes.
*/
if (!vfp_access_check_m(s, true)) {
/*
* This was only a conditional exception, so override
* gen_exception_insn_el()'s default to DISAS_NORETURN
*/
s->base.is_jmp = DISAS_NEXT;
break;
}
+ fallthrough;
}
- /* fall through */
case ARM_VFP_FPCXT_S:
{
TCGv_i32 sfpa, control;
/*
* Set FPSCR and CONTROL.SFPA from value; the new FPSCR takes
* bits [27:0] from value and zeroes bits [31:28].
*/
tmp = loadfn(s, opaque, true);
sfpa = tcg_temp_new_i32();
tcg_gen_shri_i32(sfpa, tmp, 31);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_deposit_i32(control, control, sfpa,
R_V7M_CONTROL_SFPA_SHIFT, 1);
store_cpu_field(control, v7m.control[M_REG_S]);
tcg_gen_andi_i32(tmp, tmp, ~FPCR_NZCV_MASK);
gen_helper_vfp_set_fpscr(tcg_env, tmp);
s->base.is_jmp = DISAS_UPDATE_NOCHAIN;
break;
}
case ARM_VFP_VPR:
/* Behaves as NOP if not privileged */
if (IS_USER(s)) {
loadfn(s, opaque, false);
break;
}
tmp = loadfn(s, opaque, true);
store_cpu_field(tmp, v7m.vpr);
s->base.is_jmp = DISAS_UPDATE_NOCHAIN;
break;
case ARM_VFP_P0:
{
TCGv_i32 vpr;
tmp = loadfn(s, opaque, true);
vpr = load_cpu_field(v7m.vpr);
tcg_gen_deposit_i32(vpr, vpr, tmp,
R_V7M_VPR_P0_SHIFT, R_V7M_VPR_P0_LENGTH);
store_cpu_field(vpr, v7m.vpr);
s->base.is_jmp = DISAS_UPDATE_NOCHAIN;
break;
}
default:
g_assert_not_reached();
}
if (lab_end) {
gen_set_label(lab_end);
}
return true;
}
diff --git a/target/arm/tcg/translate-vfp.c b/target/arm/tcg/translate-vfp.c
index b9af03b7c3..57d3c41596 100644
--- a/target/arm/tcg/translate-vfp.c
+++ b/target/arm/tcg/translate-vfp.c
@@ -743,140 +743,140 @@ static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
{
TCGv_i32 tmp;
bool ignore_vfp_enabled = false;
if (arm_dc_feature(s, ARM_FEATURE_M)) {
/* M profile version was already handled in m-nocp.decode */
return false;
}
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
switch (a->reg) {
case ARM_VFP_FPSID:
/*
* VFPv2 allows access to FPSID from userspace; VFPv3 restricts
* all ID registers to privileged access only.
*/
if (IS_USER(s) && dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
ignore_vfp_enabled = true;
break;
case ARM_VFP_MVFR0:
case ARM_VFP_MVFR1:
if (IS_USER(s) || !arm_dc_feature(s, ARM_FEATURE_MVFR)) {
return false;
}
ignore_vfp_enabled = true;
break;
case ARM_VFP_MVFR2:
if (IS_USER(s) || !arm_dc_feature(s, ARM_FEATURE_V8)) {
return false;
}
ignore_vfp_enabled = true;
break;
case ARM_VFP_FPSCR:
break;
case ARM_VFP_FPEXC:
if (IS_USER(s)) {
return false;
}
ignore_vfp_enabled = true;
break;
case ARM_VFP_FPINST:
case ARM_VFP_FPINST2:
/* Not present in VFPv3 */
if (IS_USER(s) || dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
break;
default:
return false;
}
/*
* Call vfp_access_check_a() directly, because we need to tell
* it to ignore FPEXC.EN for some register accesses.
*/
if (!vfp_access_check_a(s, ignore_vfp_enabled)) {
return true;
}
if (a->l) {
/* VMRS, move VFP special register to gp register */
switch (a->reg) {
case ARM_VFP_MVFR0:
case ARM_VFP_MVFR1:
case ARM_VFP_MVFR2:
case ARM_VFP_FPSID:
if (s->current_el == 1) {
gen_set_condexec(s);
gen_update_pc(s, 0);
gen_helper_check_hcr_el2_trap(tcg_env,
tcg_constant_i32(a->rt),
tcg_constant_i32(a->reg));
}
- /* fall through */
+ fallthrough;
case ARM_VFP_FPEXC:
case ARM_VFP_FPINST:
case ARM_VFP_FPINST2:
tmp = load_cpu_field(vfp.xregs[a->reg]);
break;
case ARM_VFP_FPSCR:
if (a->rt == 15) {
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
} else {
tmp = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, tcg_env);
}
break;
default:
g_assert_not_reached();
}
if (a->rt == 15) {
/* Set the 4 flag bits in the CPSR. */
gen_set_nzcv(tmp);
} else {
store_reg(s, a->rt, tmp);
}
} else {
/* VMSR, move gp register to VFP special register */
switch (a->reg) {
case ARM_VFP_FPSID:
case ARM_VFP_MVFR0:
case ARM_VFP_MVFR1:
case ARM_VFP_MVFR2:
/* Writes are ignored. */
break;
case ARM_VFP_FPSCR:
tmp = load_reg(s, a->rt);
gen_helper_vfp_set_fpscr(tcg_env, tmp);
gen_lookup_tb(s);
break;
case ARM_VFP_FPEXC:
/*
* TODO: VFP subarchitecture support.
* For now, keep the EN bit only
*/
tmp = load_reg(s, a->rt);
tcg_gen_andi_i32(tmp, tmp, 1 << 30);
store_cpu_field(tmp, vfp.xregs[a->reg]);
gen_lookup_tb(s);
break;
case ARM_VFP_FPINST:
case ARM_VFP_FPINST2:
tmp = load_reg(s, a->rt);
store_cpu_field(tmp, vfp.xregs[a->reg]);
break;
default:
g_assert_not_reached();
}
}
return true;
}
diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c
index 48927fbb8c..595ef02f0d 100644
--- a/target/arm/tcg/translate.c
+++ b/target/arm/tcg/translate.c
@@ -1486,975 +1486,975 @@ static inline int gen_iwmmxt_shift(uint32_t insn,
uint32_t mask, TCGv_i32 dest)
/* Disassemble an iwMMXt instruction. Returns nonzero if an error occurred
(ie. an undefined instruction). */
static int disas_iwmmxt_insn(DisasContext *s, uint32_t insn)
{
int rd, wrd;
int rdhi, rdlo, rd0, rd1, i;
TCGv_i32 addr;
TCGv_i32 tmp, tmp2, tmp3;
if ((insn & 0x0e000e00) == 0x0c000000) {
if ((insn & 0x0fe00ff0) == 0x0c400000) {
wrd = insn & 0xf;
rdlo = (insn >> 12) & 0xf;
rdhi = (insn >> 16) & 0xf;
if (insn & ARM_CP_RW_BIT) { /* TMRRC */
iwmmxt_load_reg(cpu_V0, wrd);
tcg_gen_extrl_i64_i32(cpu_R[rdlo], cpu_V0);
tcg_gen_extrh_i64_i32(cpu_R[rdhi], cpu_V0);
} else { /* TMCRR */
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]);
iwmmxt_store_reg(cpu_V0, wrd);
gen_op_iwmmxt_set_mup();
}
return 0;
}
wrd = (insn >> 12) & 0xf;
addr = tcg_temp_new_i32();
if (gen_iwmmxt_address(s, insn, addr)) {
return 1;
}
if (insn & ARM_CP_RW_BIT) {
if ((insn >> 28) == 0xf) { /* WLDRW wCx */
tmp = tcg_temp_new_i32();
gen_aa32_ld32u(s, tmp, addr, get_mem_index(s));
iwmmxt_store_creg(wrd, tmp);
} else {
i = 1;
if (insn & (1 << 8)) {
if (insn & (1 << 22)) { /* WLDRD */
gen_aa32_ld64(s, cpu_M0, addr, get_mem_index(s));
i = 0;
} else { /* WLDRW wRd */
tmp = tcg_temp_new_i32();
gen_aa32_ld32u(s, tmp, addr, get_mem_index(s));
}
} else {
tmp = tcg_temp_new_i32();
if (insn & (1 << 22)) { /* WLDRH */
gen_aa32_ld16u(s, tmp, addr, get_mem_index(s));
} else { /* WLDRB */
gen_aa32_ld8u(s, tmp, addr, get_mem_index(s));
}
}
if (i) {
tcg_gen_extu_i32_i64(cpu_M0, tmp);
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
}
} else {
if ((insn >> 28) == 0xf) { /* WSTRW wCx */
tmp = iwmmxt_load_creg(wrd);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
} else {
gen_op_iwmmxt_movq_M0_wRn(wrd);
tmp = tcg_temp_new_i32();
if (insn & (1 << 8)) {
if (insn & (1 << 22)) { /* WSTRD */
gen_aa32_st64(s, cpu_M0, addr, get_mem_index(s));
} else { /* WSTRW wRd */
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
}
} else {
if (insn & (1 << 22)) { /* WSTRH */
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
gen_aa32_st16(s, tmp, addr, get_mem_index(s));
} else { /* WSTRB */
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
gen_aa32_st8(s, tmp, addr, get_mem_index(s));
}
}
}
}
return 0;
}
if ((insn & 0x0f000000) != 0x0e000000)
return 1;
switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) {
case 0x000: /* WOR */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 0) & 0xf;
rd1 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
gen_op_iwmmxt_orq_M0_wRn(rd1);
gen_op_iwmmxt_setpsr_nz();
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x011: /* TMCR */
if (insn & 0xf)
return 1;
rd = (insn >> 12) & 0xf;
wrd = (insn >> 16) & 0xf;
switch (wrd) {
case ARM_IWMMXT_wCID:
case ARM_IWMMXT_wCASF:
break;
case ARM_IWMMXT_wCon:
gen_op_iwmmxt_set_cup();
- /* Fall through. */
+ fallthrough;
case ARM_IWMMXT_wCSSF:
tmp = iwmmxt_load_creg(wrd);
tmp2 = load_reg(s, rd);
tcg_gen_andc_i32(tmp, tmp, tmp2);
iwmmxt_store_creg(wrd, tmp);
break;
case ARM_IWMMXT_wCGR0:
case ARM_IWMMXT_wCGR1:
case ARM_IWMMXT_wCGR2:
case ARM_IWMMXT_wCGR3:
gen_op_iwmmxt_set_cup();
tmp = load_reg(s, rd);
iwmmxt_store_creg(wrd, tmp);
break;
default:
return 1;
}
break;
case 0x100: /* WXOR */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 0) & 0xf;
rd1 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
gen_op_iwmmxt_xorq_M0_wRn(rd1);
gen_op_iwmmxt_setpsr_nz();
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x111: /* TMRC */
if (insn & 0xf)
return 1;
rd = (insn >> 12) & 0xf;
wrd = (insn >> 16) & 0xf;
tmp = iwmmxt_load_creg(wrd);
store_reg(s, rd, tmp);
break;
case 0x300: /* WANDN */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 0) & 0xf;
rd1 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tcg_gen_neg_i64(cpu_M0, cpu_M0);
gen_op_iwmmxt_andq_M0_wRn(rd1);
gen_op_iwmmxt_setpsr_nz();
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x200: /* WAND */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 0) & 0xf;
rd1 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
gen_op_iwmmxt_andq_M0_wRn(rd1);
gen_op_iwmmxt_setpsr_nz();
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x810: case 0xa10: /* WMADD */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 0) & 0xf;
rd1 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
if (insn & (1 << 21))
gen_op_iwmmxt_maddsq_M0_wRn(rd1);
else
gen_op_iwmmxt_madduq_M0_wRn(rd1);
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
gen_op_iwmmxt_unpacklb_M0_wRn(rd1);
break;
case 1:
gen_op_iwmmxt_unpacklw_M0_wRn(rd1);
break;
case 2:
gen_op_iwmmxt_unpackll_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
gen_op_iwmmxt_unpackhb_M0_wRn(rd1);
break;
case 1:
gen_op_iwmmxt_unpackhw_M0_wRn(rd1);
break;
case 2:
gen_op_iwmmxt_unpackhl_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
if (insn & (1 << 22))
gen_op_iwmmxt_sadw_M0_wRn(rd1);
else
gen_op_iwmmxt_sadb_M0_wRn(rd1);
if (!(insn & (1 << 20)))
gen_op_iwmmxt_addl_M0_wRn(wrd);
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
if (insn & (1 << 21)) {
if (insn & (1 << 20))
gen_op_iwmmxt_mulshw_M0_wRn(rd1);
else
gen_op_iwmmxt_mulslw_M0_wRn(rd1);
} else {
if (insn & (1 << 20))
gen_op_iwmmxt_muluhw_M0_wRn(rd1);
else
gen_op_iwmmxt_mululw_M0_wRn(rd1);
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
if (insn & (1 << 21))
gen_op_iwmmxt_macsw_M0_wRn(rd1);
else
gen_op_iwmmxt_macuw_M0_wRn(rd1);
if (!(insn & (1 << 20))) {
iwmmxt_load_reg(cpu_V1, wrd);
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1);
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
gen_op_iwmmxt_cmpeqb_M0_wRn(rd1);
break;
case 1:
gen_op_iwmmxt_cmpeqw_M0_wRn(rd1);
break;
case 2:
gen_op_iwmmxt_cmpeql_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
if (insn & (1 << 22)) {
if (insn & (1 << 20))
gen_op_iwmmxt_avgw1_M0_wRn(rd1);
else
gen_op_iwmmxt_avgw0_M0_wRn(rd1);
} else {
if (insn & (1 << 20))
gen_op_iwmmxt_avgb1_M0_wRn(rd1);
else
gen_op_iwmmxt_avgb0_M0_wRn(rd1);
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3));
tcg_gen_andi_i32(tmp, tmp, 7);
iwmmxt_load_reg(cpu_V1, rd1);
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp);
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */
if (((insn >> 6) & 3) == 3)
return 1;
rd = (insn >> 12) & 0xf;
wrd = (insn >> 16) & 0xf;
tmp = load_reg(s, rd);
gen_op_iwmmxt_movq_M0_wRn(wrd);
switch ((insn >> 6) & 3) {
case 0:
tmp2 = tcg_constant_i32(0xff);
tmp3 = tcg_constant_i32((insn & 7) << 3);
break;
case 1:
tmp2 = tcg_constant_i32(0xffff);
tmp3 = tcg_constant_i32((insn & 3) << 4);
break;
case 2:
tmp2 = tcg_constant_i32(0xffffffff);
tmp3 = tcg_constant_i32((insn & 1) << 5);
break;
default:
g_assert_not_reached();
}
gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3);
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */
rd = (insn >> 12) & 0xf;
wrd = (insn >> 16) & 0xf;
if (rd == 15 || ((insn >> 22) & 3) == 3)
return 1;
gen_op_iwmmxt_movq_M0_wRn(wrd);
tmp = tcg_temp_new_i32();
switch ((insn >> 22) & 3) {
case 0:
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3);
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
if (insn & 8) {
tcg_gen_ext8s_i32(tmp, tmp);
} else {
tcg_gen_andi_i32(tmp, tmp, 0xff);
}
break;
case 1:
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4);
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
if (insn & 8) {
tcg_gen_ext16s_i32(tmp, tmp);
} else {
tcg_gen_andi_i32(tmp, tmp, 0xffff);
}
break;
case 2:
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5);
tcg_gen_extrl_i64_i32(tmp, cpu_M0);
break;
}
store_reg(s, rd, tmp);
break;
case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */
if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3)
return 1;
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
switch ((insn >> 22) & 3) {
case 0:
tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0);
break;
case 1:
tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4);
break;
case 2:
tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12);
break;
}
tcg_gen_shli_i32(tmp, tmp, 28);
gen_set_nzcv(tmp);
break;
case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */
if (((insn >> 6) & 3) == 3)
return 1;
rd = (insn >> 12) & 0xf;
wrd = (insn >> 16) & 0xf;
tmp = load_reg(s, rd);
switch ((insn >> 6) & 3) {
case 0:
gen_helper_iwmmxt_bcstb(cpu_M0, tmp);
break;
case 1:
gen_helper_iwmmxt_bcstw(cpu_M0, tmp);
break;
case 2:
gen_helper_iwmmxt_bcstl(cpu_M0, tmp);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3)
return 1;
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
tmp2 = tcg_temp_new_i32();
tcg_gen_mov_i32(tmp2, tmp);
switch ((insn >> 22) & 3) {
case 0:
for (i = 0; i < 7; i ++) {
tcg_gen_shli_i32(tmp2, tmp2, 4);
tcg_gen_and_i32(tmp, tmp, tmp2);
}
break;
case 1:
for (i = 0; i < 3; i ++) {
tcg_gen_shli_i32(tmp2, tmp2, 8);
tcg_gen_and_i32(tmp, tmp, tmp2);
}
break;
case 2:
tcg_gen_shli_i32(tmp2, tmp2, 16);
tcg_gen_and_i32(tmp, tmp, tmp2);
break;
}
gen_set_nzcv(tmp);
break;
case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0);
break;
case 1:
gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0);
break;
case 2:
gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3)
return 1;
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
tmp2 = tcg_temp_new_i32();
tcg_gen_mov_i32(tmp2, tmp);
switch ((insn >> 22) & 3) {
case 0:
for (i = 0; i < 7; i ++) {
tcg_gen_shli_i32(tmp2, tmp2, 4);
tcg_gen_or_i32(tmp, tmp, tmp2);
}
break;
case 1:
for (i = 0; i < 3; i ++) {
tcg_gen_shli_i32(tmp2, tmp2, 8);
tcg_gen_or_i32(tmp, tmp, tmp2);
}
break;
case 2:
tcg_gen_shli_i32(tmp2, tmp2, 16);
tcg_gen_or_i32(tmp, tmp, tmp2);
break;
}
gen_set_nzcv(tmp);
break;
case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */
rd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3)
return 1;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_temp_new_i32();
switch ((insn >> 22) & 3) {
case 0:
gen_helper_iwmmxt_msbb(tmp, cpu_M0);
break;
case 1:
gen_helper_iwmmxt_msbw(tmp, cpu_M0);
break;
case 2:
gen_helper_iwmmxt_msbl(tmp, cpu_M0);
break;
}
store_reg(s, rd, tmp);
break;
case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */
case 0x906: case 0xb06: case 0xd06: case 0xf06:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
if (insn & (1 << 21))
gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1);
else
gen_op_iwmmxt_cmpgtub_M0_wRn(rd1);
break;
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1);
else
gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1);
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1);
else
gen_op_iwmmxt_cmpgtul_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */
case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
if (insn & (1 << 21))
gen_op_iwmmxt_unpacklsb_M0();
else
gen_op_iwmmxt_unpacklub_M0();
break;
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_unpacklsw_M0();
else
gen_op_iwmmxt_unpackluw_M0();
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_unpacklsl_M0();
else
gen_op_iwmmxt_unpacklul_M0();
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */
case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
if (insn & (1 << 21))
gen_op_iwmmxt_unpackhsb_M0();
else
gen_op_iwmmxt_unpackhub_M0();
break;
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_unpackhsw_M0();
else
gen_op_iwmmxt_unpackhuw_M0();
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_unpackhsl_M0();
else
gen_op_iwmmxt_unpackhul_M0();
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */
case 0x214: case 0x614: case 0xa14: case 0xe14:
if (((insn >> 22) & 3) == 0)
return 1;
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_temp_new_i32();
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
return 1;
}
switch ((insn >> 22) & 3) {
case 1:
gen_helper_iwmmxt_srlw(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 2:
gen_helper_iwmmxt_srll(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 3:
gen_helper_iwmmxt_srlq(cpu_M0, tcg_env, cpu_M0, tmp);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */
case 0x014: case 0x414: case 0x814: case 0xc14:
if (((insn >> 22) & 3) == 0)
return 1;
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_temp_new_i32();
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
return 1;
}
switch ((insn >> 22) & 3) {
case 1:
gen_helper_iwmmxt_sraw(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 2:
gen_helper_iwmmxt_sral(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 3:
gen_helper_iwmmxt_sraq(cpu_M0, tcg_env, cpu_M0, tmp);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */
case 0x114: case 0x514: case 0x914: case 0xd14:
if (((insn >> 22) & 3) == 0)
return 1;
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_temp_new_i32();
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
return 1;
}
switch ((insn >> 22) & 3) {
case 1:
gen_helper_iwmmxt_sllw(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 2:
gen_helper_iwmmxt_slll(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 3:
gen_helper_iwmmxt_sllq(cpu_M0, tcg_env, cpu_M0, tmp);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */
case 0x314: case 0x714: case 0xb14: case 0xf14:
if (((insn >> 22) & 3) == 0)
return 1;
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_temp_new_i32();
switch ((insn >> 22) & 3) {
case 1:
if (gen_iwmmxt_shift(insn, 0xf, tmp)) {
return 1;
}
gen_helper_iwmmxt_rorw(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 2:
if (gen_iwmmxt_shift(insn, 0x1f, tmp)) {
return 1;
}
gen_helper_iwmmxt_rorl(cpu_M0, tcg_env, cpu_M0, tmp);
break;
case 3:
if (gen_iwmmxt_shift(insn, 0x3f, tmp)) {
return 1;
}
gen_helper_iwmmxt_rorq(cpu_M0, tcg_env, cpu_M0, tmp);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */
case 0x916: case 0xb16: case 0xd16: case 0xf16:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
if (insn & (1 << 21))
gen_op_iwmmxt_minsb_M0_wRn(rd1);
else
gen_op_iwmmxt_minub_M0_wRn(rd1);
break;
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_minsw_M0_wRn(rd1);
else
gen_op_iwmmxt_minuw_M0_wRn(rd1);
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_minsl_M0_wRn(rd1);
else
gen_op_iwmmxt_minul_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */
case 0x816: case 0xa16: case 0xc16: case 0xe16:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 0:
if (insn & (1 << 21))
gen_op_iwmmxt_maxsb_M0_wRn(rd1);
else
gen_op_iwmmxt_maxub_M0_wRn(rd1);
break;
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_maxsw_M0_wRn(rd1);
else
gen_op_iwmmxt_maxuw_M0_wRn(rd1);
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_maxsl_M0_wRn(rd1);
else
gen_op_iwmmxt_maxul_M0_wRn(rd1);
break;
case 3:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */
case 0x402: case 0x502: case 0x602: case 0x702:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
iwmmxt_load_reg(cpu_V1, rd1);
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1,
tcg_constant_i32((insn >> 20) & 3));
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */
case 0x41a: case 0x51a: case 0x61a: case 0x71a:
case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 20) & 0xf) {
case 0x0:
gen_op_iwmmxt_subnb_M0_wRn(rd1);
break;
case 0x1:
gen_op_iwmmxt_subub_M0_wRn(rd1);
break;
case 0x3:
gen_op_iwmmxt_subsb_M0_wRn(rd1);
break;
case 0x4:
gen_op_iwmmxt_subnw_M0_wRn(rd1);
break;
case 0x5:
gen_op_iwmmxt_subuw_M0_wRn(rd1);
break;
case 0x7:
gen_op_iwmmxt_subsw_M0_wRn(rd1);
break;
case 0x8:
gen_op_iwmmxt_subnl_M0_wRn(rd1);
break;
case 0x9:
gen_op_iwmmxt_subul_M0_wRn(rd1);
break;
case 0xb:
gen_op_iwmmxt_subsl_M0_wRn(rd1);
break;
default:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */
case 0x41e: case 0x51e: case 0x61e: case 0x71e:
case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
tmp = tcg_constant_i32(((insn >> 16) & 0xf0) | (insn & 0x0f));
gen_helper_iwmmxt_shufh(cpu_M0, tcg_env, cpu_M0, tmp);
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */
case 0x418: case 0x518: case 0x618: case 0x718:
case 0x818: case 0x918: case 0xa18: case 0xb18:
case 0xc18: case 0xd18: case 0xe18: case 0xf18:
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 20) & 0xf) {
case 0x0:
gen_op_iwmmxt_addnb_M0_wRn(rd1);
break;
case 0x1:
gen_op_iwmmxt_addub_M0_wRn(rd1);
break;
case 0x3:
gen_op_iwmmxt_addsb_M0_wRn(rd1);
break;
case 0x4:
gen_op_iwmmxt_addnw_M0_wRn(rd1);
break;
case 0x5:
gen_op_iwmmxt_adduw_M0_wRn(rd1);
break;
case 0x7:
gen_op_iwmmxt_addsw_M0_wRn(rd1);
break;
case 0x8:
gen_op_iwmmxt_addnl_M0_wRn(rd1);
break;
case 0x9:
gen_op_iwmmxt_addul_M0_wRn(rd1);
break;
case 0xb:
gen_op_iwmmxt_addsl_M0_wRn(rd1);
break;
default:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */
case 0x408: case 0x508: case 0x608: case 0x708:
case 0x808: case 0x908: case 0xa08: case 0xb08:
case 0xc08: case 0xd08: case 0xe08: case 0xf08:
if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0)
return 1;
wrd = (insn >> 12) & 0xf;
rd0 = (insn >> 16) & 0xf;
rd1 = (insn >> 0) & 0xf;
gen_op_iwmmxt_movq_M0_wRn(rd0);
switch ((insn >> 22) & 3) {
case 1:
if (insn & (1 << 21))
gen_op_iwmmxt_packsw_M0_wRn(rd1);
else
gen_op_iwmmxt_packuw_M0_wRn(rd1);
break;
case 2:
if (insn & (1 << 21))
gen_op_iwmmxt_packsl_M0_wRn(rd1);
else
gen_op_iwmmxt_packul_M0_wRn(rd1);
break;
case 3:
if (insn & (1 << 21))
gen_op_iwmmxt_packsq_M0_wRn(rd1);
else
gen_op_iwmmxt_packuq_M0_wRn(rd1);
break;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
gen_op_iwmmxt_set_cup();
break;
case 0x201: case 0x203: case 0x205: case 0x207:
case 0x209: case 0x20b: case 0x20d: case 0x20f:
case 0x211: case 0x213: case 0x215: case 0x217:
case 0x219: case 0x21b: case 0x21d: case 0x21f:
wrd = (insn >> 5) & 0xf;
rd0 = (insn >> 12) & 0xf;
rd1 = (insn >> 0) & 0xf;
if (rd0 == 0xf || rd1 == 0xf)
return 1;
gen_op_iwmmxt_movq_M0_wRn(wrd);
tmp = load_reg(s, rd0);
tmp2 = load_reg(s, rd1);
switch ((insn >> 16) & 0xf) {
case 0x0: /* TMIA */
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2);
break;
case 0x8: /* TMIAPH */
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2);
break;
case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */
if (insn & (1 << 16))
tcg_gen_shri_i32(tmp, tmp, 16);
if (insn & (1 << 17))
tcg_gen_shri_i32(tmp2, tmp2, 16);
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2);
break;
default:
return 1;
}
gen_op_iwmmxt_movq_wRn_M0(wrd);
gen_op_iwmmxt_set_mup();
break;
default:
return 1;
}
return 0;
}
/* Disassemble an XScale DSP instruction. Returns nonzero if an error occurred
(ie. an undefined instruction). */
@@ -9544,111 +9544,111 @@ static void thumb_tr_translate_insn(DisasContextBase
*dcbase, CPUState *cpu)
static void arm_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
/* At this stage dc->condjmp will only be set when the skipped
instruction was a conditional branch or trap, and the PC has
already been written. */
gen_set_condexec(dc);
if (dc->base.is_jmp == DISAS_BX_EXCRET) {
/* Exception return branches need some special case code at the
* end of the TB, which is complex enough that it has to
* handle the single-step vs not and the condition-failed
* insn codepath itself.
*/
gen_bx_excret_final_code(dc);
} else if (unlikely(dc->ss_active)) {
/* Unconditional and "condition passed" instruction codepath. */
switch (dc->base.is_jmp) {
case DISAS_SWI:
gen_ss_advance(dc);
gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb));
break;
case DISAS_HVC:
gen_ss_advance(dc);
gen_exception_el(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2);
break;
case DISAS_SMC:
gen_ss_advance(dc);
gen_exception_el(EXCP_SMC, syn_aa32_smc(), 3);
break;
case DISAS_NEXT:
case DISAS_TOO_MANY:
case DISAS_UPDATE_EXIT:
case DISAS_UPDATE_NOCHAIN:
gen_update_pc(dc, curr_insn_len(dc));
- /* fall through */
+ fallthrough;
default:
/* FIXME: Single stepping a WFI insn will not halt the CPU. */
gen_singlestep_exception(dc);
break;
case DISAS_NORETURN:
break;
}
} else {
/* While branches must always occur at the end of an IT block,
there are a few other things that can cause us to terminate
the TB in the middle of an IT block:
- Exception generating instructions (bkpt, swi, undefined).
- Page boundaries.
- Hardware watchpoints.
Hardware breakpoints have already been handled and skip this code.
*/
switch (dc->base.is_jmp) {
case DISAS_NEXT:
case DISAS_TOO_MANY:
gen_goto_tb(dc, 1, curr_insn_len(dc));
break;
case DISAS_UPDATE_NOCHAIN:
gen_update_pc(dc, curr_insn_len(dc));
- /* fall through */
+ fallthrough;
case DISAS_JUMP:
gen_goto_ptr();
break;
case DISAS_UPDATE_EXIT:
gen_update_pc(dc, curr_insn_len(dc));
- /* fall through */
+ fallthrough;
default:
/* indicate that the hash table must be used to find the next TB */
tcg_gen_exit_tb(NULL, 0);
break;
case DISAS_NORETURN:
/* nothing more to generate */
break;
case DISAS_WFI:
gen_helper_wfi(tcg_env, tcg_constant_i32(curr_insn_len(dc)));
/*
* The helper doesn't necessarily throw an exception, but we
* must go back to the main loop to check for interrupts anyway.
*/
tcg_gen_exit_tb(NULL, 0);
break;
case DISAS_WFE:
gen_helper_wfe(tcg_env);
break;
case DISAS_YIELD:
gen_helper_yield(tcg_env);
break;
case DISAS_SWI:
gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb));
break;
case DISAS_HVC:
gen_exception_el(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2);
break;
case DISAS_SMC:
gen_exception_el(EXCP_SMC, syn_aa32_smc(), 3);
break;
}
}
if (dc->condjmp) {
/* "Condition failed" instruction codepath for the branch/trap insn */
set_disas_label(dc, dc->condlabel);
gen_set_condexec(dc);
if (unlikely(dc->ss_active)) {
gen_update_pc(dc, curr_insn_len(dc));
gen_singlestep_exception(dc);
} else {
gen_goto_tb(dc, 1, curr_insn_len(dc));
}
}
}
--
2.39.2
- [RFC PATCH 19/78] target/hppa: add fallthrough pseudo-keyword, (continued)
- [RFC PATCH 19/78] target/hppa: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 18/78] ui/win32-kbd-hook.c: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 20/78] target/mips: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 22/78] target/ppc: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 21/78] target/sparc: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 27/78] target/riscv: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 28/78] target/avr: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 24/78] target/alpha: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 25/78] target/i386: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 23/78] target/arm: add fallthrough pseudo-keyword,
Emmanouil Pitsidianakis <=
- [RFC PATCH 26/78] target/s390x: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 29/78] target/cris: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 30/78] target/nios2: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 33/78] target/rx: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 32/78] target/m68k: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 34/78] target/tricore: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 36/78] target/openrisc: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 37/78] target/hexagon: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13
- [RFC PATCH 42/78] hw/i386: add fallthrough pseudo-keyword, Emmanouil Pitsidianakis, 2023/10/13