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[Qemu-devel] [PATCH v1 08/30] target-sparc: implement UA2005 scratchpad
From: |
Artyom Tarasenko |
Subject: |
[Qemu-devel] [PATCH v1 08/30] target-sparc: implement UA2005 scratchpad registers |
Date: |
Fri, 4 Nov 2016 21:50:09 +0100 |
Signed-off-by: Artyom Tarasenko <address@hidden>
---
target-sparc/asi.h | 1 +
target-sparc/cpu.h | 1 +
target-sparc/ldst_helper.c | 24 ++++++++++++++++++++++++
3 files changed, 26 insertions(+)
diff --git a/target-sparc/asi.h b/target-sparc/asi.h
index c9a1849..d8d6284 100644
--- a/target-sparc/asi.h
+++ b/target-sparc/asi.h
@@ -211,6 +211,7 @@
#define ASI_AFSR 0x4c /* Async fault status register */
#define ASI_AFAR 0x4d /* Async fault address register */
#define ASI_EC_TAG_DATA 0x4e /* E-cache tag/valid ram diag acc
*/
+#define ASI_HYP_SCRATCHPAD 0x4f /* (4V) Hypervisor scratchpad */
#define ASI_IMMU 0x50 /* Insn-MMU main register space */
#define ASI_IMMU_TSB_8KB_PTR 0x51 /* Insn-MMU 8KB TSB pointer reg */
#define ASI_IMMU_TSB_64KB_PTR 0x52 /* Insn-MMU 64KB TSB pointer reg */
diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index 7233140..113ae33 100644
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -520,6 +520,7 @@ struct CPUSPARCState {
uint32_t gl; // UA2005
/* UA 2005 hyperprivileged registers */
uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
+ uint64_t scratch[8];
CPUTimer *hstick; // UA 2005
/* Interrupt vector registers */
uint64_t ivec_status;
diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c
index 68eca86..387732d 100644
--- a/target-sparc/ldst_helper.c
+++ b/target-sparc/ldst_helper.c
@@ -1351,6 +1351,18 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong
addr,
}
break;
}
+ case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */
+ if (unlikely((addr >= 0x20) && (addr < 0x30))) {
+ /* Hyperprivileged access only */
+ cpu_unassigned_access(cs, addr, false, false, 1, size);
+ }
+ /* fall through */
+ case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */
+ {
+ unsigned int i = (addr >> 3) & 0x7;
+ ret = env->scratch[i];
+ break;
+ }
case ASI_DCACHE_DATA: /* D-cache data */
case ASI_DCACHE_TAG: /* D-cache tag access */
case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
@@ -1603,6 +1615,18 @@ void helper_st_asi(CPUSPARCState *env, target_ulong
addr, target_ulong val,
case ASI_INTR_RECEIVE: /* Interrupt data receive */
env->ivec_status = val & 0x20;
return;
+ case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */
+ if (unlikely((addr >= 0x20) && (addr < 0x30))) {
+ /* Hyperprivileged access only */
+ cpu_unassigned_access(cs, addr, true, false, 1, size);
+ }
+ /* fall through */
+ case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */
+ {
+ unsigned int i = (addr >> 3) & 0x7;
+ env->scratch[i] = val;
+ return;
+ }
case ASI_DCACHE_DATA: /* D-cache data */
case ASI_DCACHE_TAG: /* D-cache tag access */
case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
--
1.8.3.1
- [Qemu-devel] [PATCH v1 01/30] target-sparc: ignore MMU-faults if MMU is disabled in hypervisor mode, (continued)
- [Qemu-devel] [PATCH v1 01/30] target-sparc: ignore MMU-faults if MMU is disabled in hypervisor mode, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 02/30] target-sparc: store cpu super- and hypervisor flags in TB, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 03/30] target-sparc: use explicit mmu register pointers, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 04/30] target-sparc: add UA2005 TTE bit #defines, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 05/30] target-sparc: add UltraSPARC T1 TLB #defines, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 06/30] target-sparc: on UA2005 don't deliver Interrupt_level_n IRQs in hypervisor mode, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 07/30] target-sparc: simplify replace_tlb_entry by using TTE_PGSIZE, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 08/30] target-sparc: implement UA2005 scratchpad registers,
Artyom Tarasenko <=
- [Qemu-devel] [PATCH v1 09/30] target-sparc: implement UltraSPARC-T1 Strand status ASR, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 10/30] target-sparc: hypervisor mode takes over nucleus mode, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 11/30] target-sparc: implement UA2005 hypervisor traps, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 13/30] target-sparc: implement UA2005 rdhpstate and wrhpstate instructions, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 14/30] target-sparc: fix immediate UA2005 traps, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 17/30] target-sparc: ignore writes to UA2005 CPU mondo queue register, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 12/30] target-sparc: implement UA2005 GL register, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 16/30] target-sparc: allow priveleged ASIs in hyperprivileged mode, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 18/30] target-sparc: replace the last tlb entry when no free entries left, Artyom Tarasenko, 2016/11/04
- [Qemu-devel] [PATCH v1 15/30] target-sparc: use direct address translation in hyperprivileged mode, Artyom Tarasenko, 2016/11/04