diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-06 15:21:16 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-07 11:36:35 -0700 |
| commit | d68c5a271727e09ce4a26ea8b85cbb852e06650f (patch) | |
| tree | 58f48c1f956a0a18f7dff57718ca19e0f4d2b6b1 /drivers/char/agp/ati-agp.c | |
| parent | e501b3d87f003dfad8fcbd0f55ae17ea52495a56 (diff) | |
agp: Use pci_resource_start() to get CPU physical address for BAR
amd_irongate_configure(), ati_configure(), and nvidia_configure() call
ioremap() on an address read directly from a BAR. But a BAR contains a
bus address, and ioremap() expects a CPU physical address. Use
pci_resource_start() to obtain the physical address.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/char/agp/ati-agp.c')
| -rw-r--r-- | drivers/char/agp/ati-agp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c index 53cb310d433e..ba83c11186ce 100644 --- a/drivers/char/agp/ati-agp.c +++ b/drivers/char/agp/ati-agp.c @@ -12,7 +12,7 @@ #include <asm/agp.h> #include "agp.h" -#define ATI_GART_MMBASE_ADDR 0x14 +#define ATI_GART_MMBASE_BAR 1 #define ATI_RS100_APSIZE 0xac #define ATI_RS100_IG_AGPMODE 0xb0 #define ATI_RS300_APSIZE 0xf8 @@ -196,12 +196,12 @@ static void ati_cleanup(void) static int ati_configure(void) { + phys_addr_t reg; u32 temp; /* Get the memory mapped registers */ - pci_read_config_dword(agp_bridge->dev, ATI_GART_MMBASE_ADDR, &temp); - temp = (temp & 0xfffff000); - ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096); + reg = pci_resource_start(agp_bridge->dev, ATI_GART_MMBASE_BAR); + ati_generic_private.registers = (volatile u8 __iomem *) ioremap(reg, 4096); if (!ati_generic_private.registers) return -ENOMEM; |