diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 44b8034a400..62d0ba33858 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -359,7 +359,7 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 uint64_t limit = (uint64_t)radeon_vram_limit << 20; mc->vram_start = base; - if (mc->mc_vram_size > (0xFFFFFFFF - base + 1)) { + if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) { dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n"); mc->real_vram_size = mc->aper_size; mc->mc_vram_size = mc->aper_size; @@ -394,7 +394,7 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) { u64 size_af, size_bf; - size_af = ((0xFFFFFFFF - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align; + size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align; size_bf = mc->vram_start & ~mc->gtt_base_align; if (size_bf > size_af) { if (mc->gtt_size > size_bf) { @@ -1068,6 +1068,17 @@ int radeon_device_init(struct radeon_device *rdev, radeon_agp_disable(rdev); } + /* Set the internal MC address mask + * This is the max address of the GPU's + * internal address space. + */ + if (rdev->family >= CHIP_CAYMAN) + rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ + else if (rdev->family >= CHIP_CEDAR) + rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */ + else + rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */ + /* set DMA mask + need_dma32 flags. * PCIE - can handle 40-bits. * IGP - can handle 40-bits |