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drm/amdgpu/gmc9: set mc vm fb offset for raven

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APU fb offset is set by sbios, which is different with DGPU.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-12-15 11:15:27 +08:00 • committed by Alex Deucher
parent e4f3abaa97
commit 2d8e898e09
3 changed files with 10 additions and 3 deletions
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5
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
View file

@ -31,6 +31,11 @@
#include "soc15_common.h"
u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev)
{
return (u64)RREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_FB_OFFSET)) << 24;
}
int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
{
u32 tmp;

2
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h
View file

@ -28,7 +28,7 @@ int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev);
void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev);
void gfxhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev,
bool value);
u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev);
extern const struct amd_ip_funcs gfxhub_v1_0_ip_funcs;
extern const struct amdgpu_ip_block_version gfxhub_v1_0_ip_block;

6
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View file

@ -548,8 +548,10 @@ static int gmc_v9_0_vm_init(struct amdgpu_device *adev)
amdgpu_vm_manager_init(adev);
/* base offset of vram pages */
/*XXX This value is not zero for APU*/
adev->vm_manager.vram_base_offset = 0;
if (adev->flags & AMD_IS_APU)
adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
else
adev->vm_manager.vram_base_offset = 0;
return 0;
}