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Improve PCI debug support 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6234 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2009-01-08 18:52:52 +00:00
parent 59d9413094
commit 8026037b42
1 changed files with 27 additions and 1 deletions
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28
hw/pci_host.h
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@ -25,6 +25,16 @@
/* Worker routines for a PCI host controller that uses an {address,data}
register pair to access PCI configuration space. */
/* debug PCI */
//#define DEBUG_PCI
#ifdef DEBUG_PCI
#define PCI_DPRINTF(fmt, args...) \
do { printf("pci_host_data: " fmt , ##args); } while (0)
#else
#define PCI_DPRINTF(fmt, args...)
#endif
typedef struct {
uint32_t config_reg;
PCIBus *bus;
@ -33,6 +43,9 @@ typedef struct {
static void pci_host_data_writeb(void* opaque, pci_addr_t addr, uint32_t val)
{
PCIHostState *s = opaque;
PCI_DPRINTF("writeb addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
if (s->config_reg & (1u << 31))
pci_data_write(s->bus, s->config_reg | (addr & 3), val, 1);
}
@ -43,6 +56,8 @@ static void pci_host_data_writew(void* opaque, pci_addr_t addr, uint32_t val)
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap16(val);
#endif
PCI_DPRINTF("writew addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
if (s->config_reg & (1u << 31))
pci_data_write(s->bus, s->config_reg | (addr & 3), val, 2);
}
@ -53,6 +68,8 @@ static void pci_host_data_writel(void* opaque, pci_addr_t addr, uint32_t val)
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
PCI_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
if (s->config_reg & (1u << 31))
pci_data_write(s->bus, s->config_reg, val, 4);
}
@ -60,9 +77,14 @@ static void pci_host_data_writel(void* opaque, pci_addr_t addr, uint32_t val)
static uint32_t pci_host_data_readb(void* opaque, pci_addr_t addr)
{
PCIHostState *s = opaque;
uint32_t val;
if (!(s->config_reg & (1 << 31)))
return 0xff;
return pci_data_read(s->bus, s->config_reg | (addr & 3), 1);
val = pci_data_read(s->bus, s->config_reg | (addr & 3), 1);
PCI_DPRINTF("readb addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
return val;
}
static uint32_t pci_host_data_readw(void* opaque, pci_addr_t addr)
@ -72,6 +94,8 @@ static uint32_t pci_host_data_readw(void* opaque, pci_addr_t addr)
if (!(s->config_reg & (1 << 31)))
return 0xffff;
val = pci_data_read(s->bus, s->config_reg | (addr & 3), 2);
PCI_DPRINTF("readw addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap16(val);
#endif
@ -85,6 +109,8 @@ static uint32_t pci_host_data_readl(void* opaque, pci_addr_t addr)
if (!(s->config_reg & (1 << 31)))
return 0xffffffff;
val = pci_data_read(s->bus, s->config_reg | (addr & 3), 4);
PCI_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n",
(target_phys_addr_t)addr, val);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif