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| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-06 23:21:16 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-07 19:36:35 +0100 |
| commit | d68c5a271727e09ce4a26ea8b85cbb852e06650f (patch) | |
| tree | 58f48c1f956a0a18f7dff57718ca19e0f4d2b6b1 /drivers/char/agp/nvidia-agp.c | |
| parent | agp: Support 64-bit APBASE (diff) | |
| download | linux-d68c5a271727e09ce4a26ea8b85cbb852e06650f.tar.xz linux-d68c5a271727e09ce4a26ea8b85cbb852e06650f.zip | |
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/nvidia-agp.c')
| -rw-r--r-- | drivers/char/agp/nvidia-agp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c index ab65d55272c4..a1861b75eb31 100644 --- a/drivers/char/agp/nvidia-agp.c +++ b/drivers/char/agp/nvidia-agp.c @@ -106,6 +106,7 @@ static int nvidia_configure(void) { int i, rc, num_dirs; u32 apbase, aplimit; + phys_addr_t apbase_phys; struct aper_size_info_8 *current_size; u32 temp; @@ -152,8 +153,9 @@ static int nvidia_configure(void) pci_write_config_dword(agp_bridge->dev, NVIDIA_0_APSIZE, temp | 0x100); /* map aperture */ + apbase_phys = pci_resource_start(agp_bridge->dev, AGP_APERTURE_BAR); nvidia_private.aperture = - (volatile u32 __iomem *) ioremap(apbase, 33 * PAGE_SIZE); + (volatile u32 __iomem *) ioremap(apbase_phys, 33 * PAGE_SIZE); if (!nvidia_private.aperture) return -ENOMEM; |