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[Qemu-devel] [PATCH 8/8] libqos: Change PCI accessors to take opaque BAR
|
From: |
David Gibson |
|
Subject: |
[Qemu-devel] [PATCH 8/8] libqos: Change PCI accessors to take opaque BAR handle |
|
Date: |
Tue, 18 Oct 2016 21:52:13 +1100 |
The usual use model for the libqos PCI functions is to map a specific PCI
BAR using qpci_iomap() then pass the returned token into IO accessor
functions. This, and the fact that iomap() returns a (void *) which
actually contains a PCI space address, kind of suggests that the return
value from iomap is supposed to be an opaque token.
..except that the callers expect to be able to add offsets to it. Which
also assumes the compiler will support pointer arithmetic on a (void *),
and treat it as working with byte offsets.
To clarify this situation change iomap() and the IO accessors to take
a definitely opaque BAR handle (enforced with a wrapper struct) along with
an offset within the BAR. This changes both the functions and all the
callers.
A few notes:
* Asserts that iomap() returns non-NULL are removed in some places;
iomap() already asserts if it can't map the BAR
* In ide-test.c we change explicit outb() etc. calls to matching
qpci_io_writeb() calls. That makes the test more portable, and removes
assumptions that the test case shouldn't be making about how iomap()'s
return value is formatted internally.
Signed-off-by: David Gibson <address@hidden>
# Conflicts:
# tests/libqos/virtio-pci.c
---
tests/ahci-test.c | 4 +-
tests/e1000e-test.c | 7 ++-
tests/ide-test.c | 23 +++++----
tests/ivshmem-test.c | 28 +++++------
tests/libqos/ahci.c | 3 +-
tests/libqos/ahci.h | 6 +--
tests/libqos/pci.c | 125 +++++++++++++++++++++-------------------------
tests/libqos/pci.h | 39 +++++++++------
tests/libqos/usb.c | 6 +--
tests/libqos/usb.h | 2 +-
tests/libqos/virtio-pci.c | 113 +++++++++++++++++++++--------------------
tests/libqos/virtio-pci.h | 2 +-
tests/rtl8139-test.c | 10 ++--
tests/usb-hcd-ehci-test.c | 5 +-
14 files changed, 186 insertions(+), 187 deletions(-)
diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 9c0adce..4358631 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -90,12 +90,12 @@ static void verify_state(AHCIQState *ahci)
g_assert_cmphex(ahci_fingerprint, ==, ahci->fingerprint);
/* If we haven't initialized, this is as much as can be validated. */
- if (!ahci->hba_base) {
+ if (!ahci->hba_bar.addr) {
return;
}
hba_base = (uint64_t)qpci_config_readl(ahci->dev, PCI_BASE_ADDRESS_5);
- hba_stored = (uint64_t)(uintptr_t)ahci->hba_base;
+ hba_stored = ahci->hba_bar.addr;
g_assert_cmphex(hba_base, ==, hba_stored);
g_assert_cmphex(ahci_rreg(ahci, AHCI_CAP), ==, ahci->cap);
diff --git a/tests/e1000e-test.c b/tests/e1000e-test.c
index 3979b20..8c42ca9 100644
--- a/tests/e1000e-test.c
+++ b/tests/e1000e-test.c
@@ -87,7 +87,7 @@
typedef struct e1000e_device {
QPCIDevice *pci_dev;
- void *mac_regs;
+ QPCIBar mac_regs;
uint64_t tx_ring;
uint64_t rx_ring;
@@ -119,12 +119,12 @@ static QPCIDevice *e1000e_device_find(QPCIBus *bus)
static void e1000e_macreg_write(e1000e_device *d, uint32_t reg, uint32_t val)
{
- qpci_io_writel(d->pci_dev, d->mac_regs + reg, val);
+ qpci_io_writel(d->pci_dev, d->mac_regs, reg, val);
}
static uint32_t e1000e_macreg_read(e1000e_device *d, uint32_t reg)
{
- return qpci_io_readl(d->pci_dev, d->mac_regs + reg);
+ return qpci_io_readl(d->pci_dev, d->mac_regs, reg);
}
static void e1000e_device_init(QPCIBus *bus, e1000e_device *d)
@@ -138,7 +138,6 @@ static void e1000e_device_init(QPCIBus *bus, e1000e_device
*d)
/* Map BAR0 (mac registers) */
d->mac_regs = qpci_iomap(d->pci_dev, 0, NULL);
- g_assert_nonnull(d->mac_regs);
/* Reset the device */
val = e1000e_macreg_read(d, E1000E_CTRL);
diff --git a/tests/ide-test.c b/tests/ide-test.c
index a8a4081..dc08536 100644
--- a/tests/ide-test.c
+++ b/tests/ide-test.c
@@ -137,7 +137,7 @@ static void ide_test_quit(void)
qtest_end();
}
-static QPCIDevice *get_pci_device(uint16_t *bmdma_base)
+static QPCIDevice *get_pci_device(QPCIBar *bmdma_bar)
{
QPCIDevice *dev;
uint16_t vendor_id, device_id;
@@ -156,7 +156,7 @@ static QPCIDevice *get_pci_device(uint16_t *bmdma_base)
g_assert(device_id == PCI_DEVICE_ID_INTEL_82371SB_1);
/* Map bmdma BAR */
- *bmdma_base = (uint16_t)(uintptr_t) qpci_iomap(dev, 4, NULL);
+ *bmdma_bar = qpci_iomap(dev, 4, NULL);
qpci_device_enable(dev);
@@ -182,14 +182,14 @@ static int send_dma_request(int cmd, uint64_t sector, int
nb_sectors,
void(*post_exec)(uint64_t sector, int nb_sectors))
{
QPCIDevice *dev;
- uint16_t bmdma_base;
+ QPCIBar bmdma_bar;
uintptr_t guest_prdt;
size_t len;
bool from_dev;
uint8_t status;
int flags;
- dev = get_pci_device(&bmdma_base);
+ dev = get_pci_device(&bmdma_bar);
flags = cmd & ~0xff;
cmd &= 0xff;
@@ -217,14 +217,14 @@ static int send_dma_request(int cmd, uint64_t sector, int
nb_sectors,
outb(IDE_BASE + reg_device, 0 | LBA);
/* Stop any running transfer, clear any pending interrupt */
- outb(bmdma_base + bmreg_cmd, 0);
- outb(bmdma_base + bmreg_status, BM_STS_INTR);
+ qpci_io_writeb(dev, bmdma_bar, bmreg_cmd, 0);
+ qpci_io_writeb(dev, bmdma_bar, bmreg_status, BM_STS_INTR);
/* Setup PRDT */
len = sizeof(*prdt) * prdt_entries;
guest_prdt = guest_alloc(guest_malloc, len);
memwrite(guest_prdt, prdt, len);
- outl(bmdma_base + bmreg_prdt, guest_prdt);
+ qpci_io_writel(dev, bmdma_bar, bmreg_prdt, guest_prdt);
/* ATA DMA command */
if (cmd == CMD_PACKET) {
@@ -244,15 +244,16 @@ static int send_dma_request(int cmd, uint64_t sector, int
nb_sectors,
}
/* Start DMA transfer */
- outb(bmdma_base + bmreg_cmd, BM_CMD_START | (from_dev ? BM_CMD_WRITE : 0));
+ qpci_io_writeb(dev, bmdma_bar, bmreg_cmd,
+ BM_CMD_START | (from_dev ? BM_CMD_WRITE : 0));
if (flags & CMDF_ABORT) {
- outb(bmdma_base + bmreg_cmd, 0);
+ qpci_io_writeb(dev, bmdma_bar, bmreg_cmd, 0);
}
/* Wait for the DMA transfer to complete */
do {
- status = inb(bmdma_base + bmreg_status);
+ status = qpci_io_readb(dev, bmdma_bar, bmreg_status);
} while ((status & (BM_STS_ACTIVE | BM_STS_INTR)) == BM_STS_ACTIVE);
g_assert_cmpint(get_irq(IDE_PRIMARY_IRQ), ==, !!(status & BM_STS_INTR));
@@ -266,7 +267,7 @@ static int send_dma_request(int cmd, uint64_t sector, int
nb_sectors,
/* Stop DMA transfer if still active */
if (status & BM_STS_ACTIVE) {
- outb(bmdma_base + bmreg_cmd, 0);
+ qpci_io_writeb(dev, bmdma_bar, bmreg_cmd, 0);
}
free_pci_device(dev);
diff --git a/tests/ivshmem-test.c b/tests/ivshmem-test.c
index 97a887e..f7c5bf4 100644
--- a/tests/ivshmem-test.c
+++ b/tests/ivshmem-test.c
@@ -41,7 +41,7 @@ static QPCIDevice *get_device(QPCIBus *pcibus)
typedef struct _IVState {
QTestState *qtest;
- void *reg_base, *mem_base;
+ QPCIBar reg_bar, mem_bar;
QPCIBus *pcibus;
QPCIDevice *dev;
} IVState;
@@ -75,7 +75,7 @@ static inline unsigned in_reg(IVState *s, enum Reg reg)
unsigned res;
global_qtest = s->qtest;
- res = qpci_io_readl(s->dev, s->reg_base + reg);
+ res = qpci_io_readl(s->dev, s->reg_bar, reg);
g_test_message("*%s -> %x\n", name, res);
global_qtest = qtest;
@@ -89,7 +89,7 @@ static inline void out_reg(IVState *s, enum Reg reg, unsigned
v)
global_qtest = s->qtest;
g_test_message("%x -> *%s\n", v, name);
- qpci_io_writel(s->dev, s->reg_base + reg, v);
+ qpci_io_writel(s->dev, s->reg_bar, reg, v);
global_qtest = qtest;
}
@@ -108,16 +108,14 @@ static void setup_vm_cmd(IVState *s, const char *cmd,
bool msix)
s->pcibus = qpci_init_pc(NULL);
s->dev = get_device(s->pcibus);
- s->reg_base = qpci_iomap(s->dev, 0, &barsize);
- g_assert_nonnull(s->reg_base);
+ s->reg_bar = qpci_iomap(s->dev, 0, &barsize);
g_assert_cmpuint(barsize, ==, 256);
if (msix) {
qpci_msix_enable(s->dev);
}
- s->mem_base = qpci_iomap(s->dev, 2, &barsize);
- g_assert_nonnull(s->mem_base);
+ s->mem_bar = qpci_iomap(s->dev, 2, &barsize);
g_assert_cmpuint(barsize, ==, TMPSHMSIZE);
qpci_device_enable(s->dev);
@@ -169,7 +167,7 @@ static void test_ivshmem_single(void)
for (i = 0; i < G_N_ELEMENTS(data); i++) {
data[i] = i;
}
- qpci_memwrite(s->dev, s->mem_base, data, sizeof(data));
+ qpci_memwrite(s->dev, s->mem_bar, 0, data, sizeof(data));
/* verify write */
for (i = 0; i < G_N_ELEMENTS(data); i++) {
@@ -178,7 +176,7 @@ static void test_ivshmem_single(void)
/* read it back and verify read */
memset(data, 0, sizeof(data));
- qpci_memread(s->dev, s->mem_base, data, sizeof(data));
+ qpci_memread(s->dev, s->mem_bar, 0, data, sizeof(data));
for (i = 0; i < G_N_ELEMENTS(data); i++) {
g_assert_cmpuint(data[i], ==, i);
}
@@ -201,29 +199,29 @@ static void test_ivshmem_pair(void)
/* host write, guest 1 & 2 read */
memset(tmpshmem, 0x42, TMPSHMSIZE);
- qpci_memread(s1->dev, s1->mem_base, data, TMPSHMSIZE);
+ qpci_memread(s1->dev, s1->mem_bar, 0, data, TMPSHMSIZE);
for (i = 0; i < TMPSHMSIZE; i++) {
g_assert_cmpuint(data[i], ==, 0x42);
}
- qpci_memread(s2->dev, s2->mem_base, data, TMPSHMSIZE);
+ qpci_memread(s2->dev, s2->mem_bar, 0, data, TMPSHMSIZE);
for (i = 0; i < TMPSHMSIZE; i++) {
g_assert_cmpuint(data[i], ==, 0x42);
}
/* guest 1 write, guest 2 read */
memset(data, 0x43, TMPSHMSIZE);
- qpci_memwrite(s1->dev, s1->mem_base, data, TMPSHMSIZE);
+ qpci_memwrite(s1->dev, s1->mem_bar, 0, data, TMPSHMSIZE);
memset(data, 0, TMPSHMSIZE);
- qpci_memread(s2->dev, s2->mem_base, data, TMPSHMSIZE);
+ qpci_memread(s2->dev, s2->mem_bar, 0, data, TMPSHMSIZE);
for (i = 0; i < TMPSHMSIZE; i++) {
g_assert_cmpuint(data[i], ==, 0x43);
}
/* guest 2 write, guest 1 read */
memset(data, 0x44, TMPSHMSIZE);
- qpci_memwrite(s2->dev, s2->mem_base, data, TMPSHMSIZE);
+ qpci_memwrite(s2->dev, s2->mem_bar, 0, data, TMPSHMSIZE);
memset(data, 0, TMPSHMSIZE);
- qpci_memread(s1->dev, s2->mem_base, data, TMPSHMSIZE);
+ qpci_memread(s1->dev, s2->mem_bar, 0, data, TMPSHMSIZE);
for (i = 0; i < TMPSHMSIZE; i++) {
g_assert_cmpuint(data[i], ==, 0x44);
}
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 716ab79..43b6695 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -210,8 +210,7 @@ void ahci_pci_enable(AHCIQState *ahci)
void start_ahci_device(AHCIQState *ahci)
{
/* Map AHCI's ABAR (BAR5) */
- ahci->hba_base = qpci_iomap(ahci->dev, 5, &ahci->barsize);
- g_assert(ahci->hba_base);
+ ahci->hba_bar = qpci_iomap(ahci->dev, 5, &ahci->barsize);
/* turns on pci.cmd.iose, pci.cmd.mse and pci.cmd.bme */
qpci_device_enable(ahci->dev);
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index c69fb5a..6c4abf6 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -321,7 +321,7 @@ typedef struct AHCIPortQState {
typedef struct AHCIQState {
QOSState *parent;
QPCIDevice *dev;
- void *hba_base;
+ QPCIBar hba_bar;
uint64_t barsize;
uint32_t fingerprint;
uint32_t cap;
@@ -488,12 +488,12 @@ typedef struct AHCIOpts {
static inline uint32_t ahci_mread(AHCIQState *ahci, size_t offset)
{
- return qpci_io_readl(ahci->dev, ahci->hba_base + offset);
+ return qpci_io_readl(ahci->dev, ahci->hba_bar, offset);
}
static inline void ahci_mwrite(AHCIQState *ahci, size_t offset, uint32_t value)
{
- qpci_io_writel(ahci->dev, ahci->hba_base + offset, value);
+ qpci_io_writel(ahci->dev, ahci->hba_bar, offset, value);
}
static inline uint32_t ahci_rreg(AHCIQState *ahci, uint32_t reg_num)
diff --git a/tests/libqos/pci.c b/tests/libqos/pci.c
index bbacbcf..875c517 100644
--- a/tests/libqos/pci.c
+++ b/tests/libqos/pci.c
@@ -104,7 +104,6 @@ void qpci_msix_enable(QPCIDevice *dev)
uint32_t table;
uint8_t bir_table;
uint8_t bir_pba;
- void *offset;
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
g_assert_cmphex(addr, !=, 0);
@@ -114,18 +113,16 @@ void qpci_msix_enable(QPCIDevice *dev)
table = qpci_config_readl(dev, addr + PCI_MSIX_TABLE);
bir_table = table & PCI_MSIX_FLAGS_BIRMASK;
- offset = qpci_iomap(dev, bir_table, NULL);
- dev->msix_table = offset + (table & ~PCI_MSIX_FLAGS_BIRMASK);
+ dev->msix_table_bar = qpci_iomap(dev, bir_table, NULL);
+ dev->msix_table_off = table & ~PCI_MSIX_FLAGS_BIRMASK;
table = qpci_config_readl(dev, addr + PCI_MSIX_PBA);
bir_pba = table & PCI_MSIX_FLAGS_BIRMASK;
if (bir_pba != bir_table) {
- offset = qpci_iomap(dev, bir_pba, NULL);
+ dev->msix_pba_bar = qpci_iomap(dev, bir_pba, NULL);
}
- dev->msix_pba = offset + (table & ~PCI_MSIX_FLAGS_BIRMASK);
+ dev->msix_pba_off = table & ~PCI_MSIX_FLAGS_BIRMASK;
- g_assert(dev->msix_table != NULL);
- g_assert(dev->msix_pba != NULL);
dev->msix_enabled = true;
}
@@ -141,22 +138,25 @@ void qpci_msix_disable(QPCIDevice *dev)
qpci_config_writew(dev, addr + PCI_MSIX_FLAGS,
val & ~PCI_MSIX_FLAGS_ENABLE);
- qpci_iounmap(dev, dev->msix_table);
- qpci_iounmap(dev, dev->msix_pba);
+ qpci_iounmap(dev, dev->msix_table_bar);
+ qpci_iounmap(dev, dev->msix_pba_bar);
dev->msix_enabled = 0;
- dev->msix_table = NULL;
- dev->msix_pba = NULL;
+ memset(&dev->msix_table_bar, 0, sizeof(dev->msix_table_bar));
+ memset(&dev->msix_pba_bar, 0, sizeof(dev->msix_pba_bar));
+ dev->msix_table_off = 0;
+ dev->msix_pba_off = 0;
}
bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry)
{
uint32_t pba_entry;
uint8_t bit_n = entry % 32;
- void *addr = dev->msix_pba + (entry / 32) * PCI_MSIX_ENTRY_SIZE / 4;
+ uint64_t off = (entry / 32) * PCI_MSIX_ENTRY_SIZE / 4;
g_assert(dev->msix_enabled);
- pba_entry = qpci_io_readl(dev, addr);
- qpci_io_writel(dev, addr, pba_entry & ~(1 << bit_n));
+ pba_entry = qpci_io_readl(dev, dev->msix_pba_bar, dev->msix_pba_off + off);
+ qpci_io_writel(dev, dev->msix_pba_bar, dev->msix_pba_off + off,
+ pba_entry & ~(1 << bit_n));
return (pba_entry & (1 << bit_n)) != 0;
}
@@ -164,7 +164,7 @@ bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry)
{
uint8_t addr;
uint16_t val;
- void *vector_addr = dev->msix_table + (entry * PCI_MSIX_ENTRY_SIZE);
+ uint64_t vector_off = dev->msix_table_off + entry * PCI_MSIX_ENTRY_SIZE;
g_assert(dev->msix_enabled);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
@@ -174,8 +174,9 @@ bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry)
if (val & PCI_MSIX_FLAGS_MASKALL) {
return true;
} else {
- return (qpci_io_readl(dev, vector_addr + PCI_MSIX_ENTRY_VECTOR_CTRL)
- & PCI_MSIX_ENTRY_CTRL_MASKBIT) !=
0;
+ return (qpci_io_readl(dev, dev->msix_table_bar,
+ vector_off + PCI_MSIX_ENTRY_VECTOR_CTRL)
+ & PCI_MSIX_ENTRY_CTRL_MASKBIT) != 0;
}
}
@@ -222,104 +223,93 @@ void qpci_config_writel(QPCIDevice *dev, uint8_t offset,
uint32_t value)
dev->bus->config_writel(dev->bus, dev->devfn, offset, value);
}
-
-uint8_t qpci_io_readb(QPCIDevice *dev, void *data)
+uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- return dev->bus->pio_readb(dev->bus, addr);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ return dev->bus->pio_readb(dev->bus, token.addr + off);
} else {
uint8_t val;
- dev->bus->memread(dev->bus, addr, &val, sizeof(val));
+ dev->bus->memread(dev->bus, token.addr + off, &val, sizeof(val));
return val;
}
}
-uint16_t qpci_io_readw(QPCIDevice *dev, void *data)
+uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- return dev->bus->pio_readw(dev->bus, addr);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ return dev->bus->pio_readw(dev->bus, token.addr + off);
} else {
uint16_t val;
- dev->bus->memread(dev->bus, addr, &val, sizeof(val));
+ dev->bus->memread(dev->bus, token.addr + off, &val, sizeof(val));
return le16_to_cpu(val);
}
}
-uint32_t qpci_io_readl(QPCIDevice *dev, void *data)
+uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- return dev->bus->pio_readl(dev->bus, addr);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ return dev->bus->pio_readl(dev->bus, token.addr + off);
} else {
uint32_t val;
- dev->bus->memread(dev->bus, addr, &val, sizeof(val));
+ dev->bus->memread(dev->bus, token.addr + off, &val, sizeof(val));
return le32_to_cpu(val);
}
}
-void qpci_io_writeb(QPCIDevice *dev, void *data, uint8_t value)
+void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint8_t value)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- dev->bus->pio_writeb(dev->bus, addr, value);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ dev->bus->pio_writeb(dev->bus, token.addr + off, value);
} else {
- dev->bus->memwrite(dev->bus, addr, &value, sizeof(value));
+ dev->bus->memwrite(dev->bus, token.addr + off, &value, sizeof(value));
}
}
-void qpci_io_writew(QPCIDevice *dev, void *data, uint16_t value)
+void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint16_t value)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- dev->bus->pio_writew(dev->bus, addr, value);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ dev->bus->pio_writew(dev->bus, token.addr + off, value);
} else {
value = cpu_to_le16(value);
- dev->bus->memwrite(dev->bus, addr, &value, sizeof(value));
+ dev->bus->memwrite(dev->bus, token.addr + off, &value, sizeof(value));
}
}
-void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value)
+void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint32_t value)
{
- uintptr_t addr = (uintptr_t)data;
-
- if (addr < QPCI_PIO_LIMIT) {
- dev->bus->pio_writel(dev->bus, addr, value);
+ if (token.addr < QPCI_PIO_LIMIT) {
+ dev->bus->pio_writel(dev->bus, token.addr + off, value);
} else {
value = cpu_to_le32(value);
- dev->bus->memwrite(dev->bus, addr, &value, sizeof(value));
+ dev->bus->memwrite(dev->bus, token.addr + off, &value, sizeof(value));
}
}
-void qpci_memread(QPCIDevice *dev, void *data, void *buf, size_t len)
+void qpci_memread(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ void *buf, size_t len)
{
- uintptr_t addr = (uintptr_t)data;
-
- g_assert(addr >= QPCI_PIO_LIMIT);
- dev->bus->memread(dev->bus, addr, buf, len);
+ g_assert(token.addr >= QPCI_PIO_LIMIT);
+ dev->bus->memread(dev->bus, token.addr + off, buf, len);
}
-void qpci_memwrite(QPCIDevice *dev, void *data, const void *buf, size_t len)
+void qpci_memwrite(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ const void *buf, size_t len)
{
- uintptr_t addr = (uintptr_t)data;
-
- g_assert(addr >= QPCI_PIO_LIMIT);
- dev->bus->memwrite(dev->bus, addr, buf, len);
+ g_assert(token.addr >= QPCI_PIO_LIMIT);
+ dev->bus->memwrite(dev->bus, token.addr + off, buf, len);
}
-void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr)
+QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr)
{
QPCIBus *bus = dev->bus;
static const int bar_reg_map[] = {
PCI_BASE_ADDRESS_0, PCI_BASE_ADDRESS_1, PCI_BASE_ADDRESS_2,
PCI_BASE_ADDRESS_3, PCI_BASE_ADDRESS_4, PCI_BASE_ADDRESS_5,
};
+ QPCIBar bar;
int bar_reg;
uint32_t addr, size;
uint32_t io_type;
@@ -366,10 +356,11 @@ void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t
*sizeptr)
qpci_config_writel(dev, bar_reg, loc);
}
- return (void *)(uintptr_t)loc;
+ bar.addr = loc;
+ return bar;
}
-void qpci_iounmap(QPCIDevice *dev, void *data)
+void qpci_iounmap(QPCIDevice *dev, QPCIBar bar)
{
/* FIXME */
}
diff --git a/tests/libqos/pci.h b/tests/libqos/pci.h
index 59fa3da..40b277c 100644
--- a/tests/libqos/pci.h
+++ b/tests/libqos/pci.h
@@ -21,6 +21,7 @@
typedef struct QPCIDevice QPCIDevice;
typedef struct QPCIBus QPCIBus;
+typedef struct QPCIBar QPCIBar;
struct QPCIBus {
uint8_t (*pio_readb)(QPCIBus *bus, uint32_t addr);
@@ -49,13 +50,17 @@ struct QPCIBus {
uint64_t mmio_alloc_ptr, mmio_limit;
};
+struct QPCIBar {
+ uint64_t addr;
+};
+
struct QPCIDevice
{
QPCIBus *bus;
int devfn;
bool msix_enabled;
- void *msix_table;
- void *msix_pba;
+ QPCIBar msix_table_bar, msix_pba_bar;
+ uint64_t msix_table_off, msix_pba_off;
};
void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
@@ -79,19 +84,23 @@ void qpci_config_writeb(QPCIDevice *dev, uint8_t offset,
uint8_t value);
void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value);
void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value);
-uint8_t qpci_io_readb(QPCIDevice *dev, void *data);
-uint16_t qpci_io_readw(QPCIDevice *dev, void *data);
-uint32_t qpci_io_readl(QPCIDevice *dev, void *data);
-
-void qpci_io_writeb(QPCIDevice *dev, void *data, uint8_t value);
-void qpci_io_writew(QPCIDevice *dev, void *data, uint16_t value);
-void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value);
-
-void qpci_memread(QPCIDevice *bus, void *data, void *buf, size_t len);
-void qpci_memwrite(QPCIDevice *bus, void *data, const void *buf, size_t len);
-
-void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
-void qpci_iounmap(QPCIDevice *dev, void *data);
+uint8_t qpci_io_readb(QPCIDevice *dev, QPCIBar token, uint64_t off);
+uint16_t qpci_io_readw(QPCIDevice *dev, QPCIBar token, uint64_t off);
+uint32_t qpci_io_readl(QPCIDevice *dev, QPCIBar token, uint64_t off);
+
+void qpci_io_writeb(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint8_t value);
+void qpci_io_writew(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint16_t value);
+void qpci_io_writel(QPCIDevice *dev, QPCIBar token, uint64_t off,
+ uint32_t value);
+
+void qpci_memread(QPCIDevice *bus, QPCIBar token, uint64_t off,
+ void *buf, size_t len);
+void qpci_memwrite(QPCIDevice *bus, QPCIBar token, uint64_t off,
+ const void *buf, size_t len);
+QPCIBar qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
+void qpci_iounmap(QPCIDevice *dev, QPCIBar addr);
void qpci_plug_device_test(const char *driver, const char *id,
uint8_t slot, const char *opts);
diff --git a/tests/libqos/usb.c b/tests/libqos/usb.c
index f794d92..72d7a96 100644
--- a/tests/libqos/usb.c
+++ b/tests/libqos/usb.c
@@ -21,14 +21,12 @@ void qusb_pci_init_one(QPCIBus *pcibus, struct qhc *hc,
uint32_t devfn, int bar)
hc->dev = qpci_device_find(pcibus, devfn);
g_assert(hc->dev != NULL);
qpci_device_enable(hc->dev);
- hc->base = qpci_iomap(hc->dev, bar, NULL);
- g_assert(hc->base != NULL);
+ hc->bar = qpci_iomap(hc->dev, bar, NULL);
}
void uhci_port_test(struct qhc *hc, int port, uint16_t expect)
{
- void *addr = hc->base + 0x10 + 2 * port;
- uint16_t value = qpci_io_readw(hc->dev, addr);
+ uint16_t value = qpci_io_readw(hc->dev, hc->bar, 0x10 + 2 * port);
uint16_t mask = ~(UHCI_PORT_WRITE_CLEAR | UHCI_PORT_RSVD1);
g_assert((value & mask) == (expect & mask));
diff --git a/tests/libqos/usb.h b/tests/libqos/usb.h
index 8fe5687..423dcfd 100644
--- a/tests/libqos/usb.h
+++ b/tests/libqos/usb.h
@@ -5,7 +5,7 @@
struct qhc {
QPCIDevice *dev;
- void *base;
+ QPCIBar bar;
};
void qusb_pci_init_one(QPCIBus *pcibus, struct qhc *hc,
diff --git a/tests/libqos/virtio-pci.c b/tests/libqos/virtio-pci.c
index 8037724..5b78d30 100644
--- a/tests/libqos/virtio-pci.c
+++ b/tests/libqos/virtio-pci.c
@@ -65,22 +65,22 @@ static void qvirtio_pci_assign_device(QVirtioDevice *d,
void *data)
static uint8_t qvirtio_pci_config_readb(QVirtioDevice *d, uint64_t off)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- void *base = dev->addr + VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
- return qpci_io_readb(dev->pdev, base + off);
+ uint64_t base = VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
+ return qpci_io_readb(dev->pdev, dev->bar, base + off);
}
static uint16_t qvirtio_pci_config_readw(QVirtioDevice *d, uint64_t off)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- void *base = dev->addr + VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
- return qpci_io_readw(dev->pdev, base + off);
+ uint64_t base = VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
+ return qpci_io_readw(dev->pdev, dev->bar, base + off);
}
static uint32_t qvirtio_pci_config_readl(QVirtioDevice *d, uint64_t off)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- void *base = dev->addr + VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
- return qpci_io_readl(dev->pdev, base + off);
+ uint64_t base = VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
+ return qpci_io_readl(dev->pdev, dev->bar, base + off);
}
static uint64_t qvirtio_pci_config_readq(QVirtioDevice *d, uint64_t off)
@@ -88,17 +88,17 @@ static uint64_t qvirtio_pci_config_readq(QVirtioDevice *d,
uint64_t off)
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
int i;
uint64_t u64 = 0;
- void *base = dev->addr + VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled);
+ uint64_t base = VIRTIO_PCI_CONFIG_OFF(dev->pdev->msix_enabled) + off;
if (target_big_endian()) {
for (i = 0; i < 8; ++i) {
- u64 |= (uint64_t)qpci_io_readb(dev->pdev,
- base + off + i) << (7 - i) * 8;
+ u64 |= (uint64_t)qpci_io_readb(dev->pdev, dev->bar,
+ base + i) << (7 - i) * 8;
}
} else {
for (i = 0; i < 8; ++i) {
- u64 |= (uint64_t)qpci_io_readb(dev->pdev,
- base + off + i) << i * 8;
+ u64 |= (uint64_t)qpci_io_readb(dev->pdev, dev->bar,
+ base + i) << i * 8;
}
}
@@ -108,31 +108,31 @@ static uint64_t qvirtio_pci_config_readq(QVirtioDevice
*d, uint64_t off)
static uint32_t qvirtio_pci_get_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- return qpci_io_readl(dev->pdev, dev->addr + VIRTIO_PCI_HOST_FEATURES);
+ return qpci_io_readl(dev->pdev, dev->bar, VIRTIO_PCI_HOST_FEATURES);
}
static void qvirtio_pci_set_features(QVirtioDevice *d, uint32_t features)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- qpci_io_writel(dev->pdev, dev->addr + VIRTIO_PCI_GUEST_FEATURES, features);
+ qpci_io_writel(dev->pdev, dev->bar, VIRTIO_PCI_GUEST_FEATURES, features);
}
static uint32_t qvirtio_pci_get_guest_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- return qpci_io_readl(dev->pdev, dev->addr + VIRTIO_PCI_GUEST_FEATURES);
+ return qpci_io_readl(dev->pdev, dev->bar, VIRTIO_PCI_GUEST_FEATURES);
}
static uint8_t qvirtio_pci_get_status(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- return qpci_io_readb(dev->pdev, dev->addr + VIRTIO_PCI_STATUS);
+ return qpci_io_readb(dev->pdev, dev->bar, VIRTIO_PCI_STATUS);
}
static void qvirtio_pci_set_status(QVirtioDevice *d, uint8_t status)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- qpci_io_writeb(dev->pdev, dev->addr + VIRTIO_PCI_STATUS, status);
+ qpci_io_writeb(dev->pdev, dev->bar, VIRTIO_PCI_STATUS, status);
}
static bool qvirtio_pci_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
@@ -156,7 +156,7 @@ static bool qvirtio_pci_get_queue_isr_status(QVirtioDevice
*d, QVirtQueue *vq)
}
}
} else {
- return qpci_io_readb(dev->pdev, dev->addr + VIRTIO_PCI_ISR) & 1;
+ return qpci_io_readb(dev->pdev, dev->bar, VIRTIO_PCI_ISR) & 1;
}
}
@@ -180,26 +180,26 @@ static bool
qvirtio_pci_get_config_isr_status(QVirtioDevice *d)
}
}
} else {
- return qpci_io_readb(dev->pdev, dev->addr + VIRTIO_PCI_ISR) & 2;
+ return qpci_io_readb(dev->pdev, dev->bar, VIRTIO_PCI_ISR) & 2;
}
}
static void qvirtio_pci_queue_select(QVirtioDevice *d, uint16_t index)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- qpci_io_writeb(dev->pdev, dev->addr + VIRTIO_PCI_QUEUE_SEL, index);
+ qpci_io_writeb(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_SEL, index);
}
static uint16_t qvirtio_pci_get_queue_size(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- return qpci_io_readw(dev->pdev, dev->addr + VIRTIO_PCI_QUEUE_NUM);
+ return qpci_io_readw(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_NUM);
}
static void qvirtio_pci_set_queue_address(QVirtioDevice *d, uint32_t pfn)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- qpci_io_writel(dev->pdev, dev->addr + VIRTIO_PCI_QUEUE_PFN, pfn);
+ qpci_io_writel(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_PFN, pfn);
}
static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
@@ -251,7 +251,7 @@ static void qvirtio_pci_virtqueue_cleanup(QVirtQueue *vq,
static void qvirtio_pci_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
- qpci_io_writew(dev->pdev, dev->addr + VIRTIO_PCI_QUEUE_NOTIFY, vq->index);
+ qpci_io_writew(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_NOTIFY, vq->index);
}
const QVirtioBus qvirtio_pci = {
@@ -296,14 +296,13 @@ QVirtioPCIDevice *qvirtio_pci_device_find(QPCIBus *bus,
uint16_t device_type)
void qvirtio_pci_device_enable(QVirtioPCIDevice *d)
{
qpci_device_enable(d->pdev);
- d->addr = qpci_iomap(d->pdev, 0, NULL);
- g_assert(d->addr != NULL);
+ d->bar = qpci_iomap(d->pdev, 0, NULL);
}
void qvirtio_pci_device_disable(QVirtioPCIDevice *d)
{
- qpci_iounmap(d->pdev, d->addr);
- d->addr = NULL;
+ qpci_iounmap(d->pdev, d->bar);
+ memset(&d->bar, 0, sizeof(d->bar));
}
void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
@@ -311,29 +310,33 @@ void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d,
QVirtQueuePCI *vqpci,
{
uint16_t vector;
uint32_t control;
- void *addr;
+ uint64_t off;
g_assert(d->pdev->msix_enabled);
- addr = d->pdev->msix_table + (entry * 16);
+ off = d->pdev->msix_table_off + (entry * 16);
g_assert_cmpint(entry, >=, 0);
g_assert_cmpint(entry, <, qpci_msix_table_size(d->pdev));
vqpci->msix_entry = entry;
vqpci->msix_addr = guest_alloc(alloc, 4);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_LOWER_ADDR,
- vqpci->msix_addr & ~0UL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_UPPER_ADDR,
- (vqpci->msix_addr >> 32) & ~0UL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_DATA, vqpci->msix_data);
-
- control = qpci_io_readl(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL,
- control &
~PCI_MSIX_ENTRY_CTRL_MASKBIT);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_LOWER_ADDR, vqpci->msix_addr & ~0UL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_UPPER_ADDR,
+ (vqpci->msix_addr >> 32) & ~0UL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_DATA, vqpci->msix_data);
+
+ control = qpci_io_readl(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_VECTOR_CTRL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_VECTOR_CTRL,
+ control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
qvirtio_pci_queue_select(&d->vdev, vqpci->vq.index);
- qpci_io_writew(d->pdev, d->addr + VIRTIO_MSI_QUEUE_VECTOR, entry);
- vector = qpci_io_readw(d->pdev, d->addr + VIRTIO_MSI_QUEUE_VECTOR);
+ qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR, entry);
+ vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
@@ -342,10 +345,10 @@ void
qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
{
uint16_t vector;
uint32_t control;
- void *addr;
+ uint64_t off;
g_assert(d->pdev->msix_enabled);
- addr = d->pdev->msix_table + (entry * 16);
+ off = d->pdev->msix_table_off + (entry * 16);
g_assert_cmpint(entry, >=, 0);
g_assert_cmpint(entry, <, qpci_msix_table_size(d->pdev));
@@ -354,17 +357,21 @@ void
qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
d->config_msix_data = 0x12345678;
d->config_msix_addr = guest_alloc(alloc, 4);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_LOWER_ADDR,
- d->config_msix_addr &
~0UL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_UPPER_ADDR,
- (d->config_msix_addr >> 32) &
~0UL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_DATA, d->config_msix_data);
-
- control = qpci_io_readl(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL);
- qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL,
- control &
~PCI_MSIX_ENTRY_CTRL_MASKBIT);
-
- qpci_io_writew(d->pdev, d->addr + VIRTIO_MSI_CONFIG_VECTOR, entry);
- vector = qpci_io_readw(d->pdev, d->addr + VIRTIO_MSI_CONFIG_VECTOR);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_LOWER_ADDR, d->config_msix_addr &
~0UL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_UPPER_ADDR,
+ (d->config_msix_addr >> 32) & ~0UL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_DATA, d->config_msix_data);
+
+ control = qpci_io_readl(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_VECTOR_CTRL);
+ qpci_io_writel(d->pdev, d->pdev->msix_table_bar,
+ off + PCI_MSIX_ENTRY_VECTOR_CTRL,
+ control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
+
+ qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR, entry);
+ vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
diff --git a/tests/libqos/virtio-pci.h b/tests/libqos/virtio-pci.h
index efcac2d..38c54c6 100644
--- a/tests/libqos/virtio-pci.h
+++ b/tests/libqos/virtio-pci.h
@@ -16,7 +16,7 @@
typedef struct QVirtioPCIDevice {
QVirtioDevice vdev;
QPCIDevice *pdev;
- void *addr;
+ QPCIBar bar;
uint16_t config_msix_entry;
uint64_t config_msix_addr;
uint32_t config_msix_data;
diff --git a/tests/rtl8139-test.c b/tests/rtl8139-test.c
index c2f601a..7de7dc4 100644
--- a/tests/rtl8139-test.c
+++ b/tests/rtl8139-test.c
@@ -22,7 +22,7 @@ static void nop(void)
static QPCIBus *pcibus;
static QPCIDevice *dev;
-static void *dev_base;
+static QPCIBar dev_bar;
static void save_fn(QPCIDevice *dev, int devfn, void *data)
{
@@ -45,14 +45,14 @@ static QPCIDevice *get_device(void)
#define PORT(name, len, val) \
static unsigned __attribute__((unused)) in_##name(void) \
{ \
- unsigned res = qpci_io_read##len(dev, dev_base+(val)); \
+ unsigned res = qpci_io_read##len(dev, dev_bar, (val)); \
g_test_message("*%s -> %x\n", #name, res); \
return res; \
} \
static void out_##name(unsigned v) \
{ \
g_test_message("%x -> *%s\n", v, #name); \
- qpci_io_write##len(dev, dev_base+(val), v); \
+ qpci_io_write##len(dev, dev_bar, (val), v); \
}
PORT(Timer, l, 0x48)
@@ -186,9 +186,7 @@ static void test_init(void)
dev = get_device();
- dev_base = qpci_iomap(dev, 0, &barsize);
-
- g_assert(dev_base != NULL);
+ dev_bar = qpci_iomap(dev, 0, &barsize);
qpci_device_enable(dev);
diff --git a/tests/usb-hcd-ehci-test.c b/tests/usb-hcd-ehci-test.c
index a4ceeaa..57af8a0 100644
--- a/tests/usb-hcd-ehci-test.c
+++ b/tests/usb-hcd-ehci-test.c
@@ -38,8 +38,7 @@ static void uhci_port_update(struct qhc *hc, int port,
static void ehci_port_test(struct qhc *hc, int port, uint32_t expect)
{
- void *addr = hc->base + 0x64 + 4 * port;
- uint32_t value = qpci_io_readl(hc->dev, addr);
+ uint32_t value = qpci_io_readl(hc->dev, hc->bar, 0x64 + 4 * port);
uint16_t mask = ~(PORTSC_CSC | PORTSC_PEDC | PORTSC_OCC);
#if 0
@@ -91,7 +90,7 @@ static void pci_ehci_port_1(void)
static void pci_ehci_config(void)
{
/* hands over all ports from companion uhci to ehci */
- qpci_io_writew(ehci1.dev, ehci1.base + 0x60, 1);
+ qpci_io_writew(ehci1.dev, ehci1.bar, 0x60, 1);
}
static void pci_uhci_port_2(void)
--
2.7.4