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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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2018-10-10drm/amdgpu: Limit the max mc address to hole startEmily Deng1-2/+4
For the vram_start is 0 case, the gart range will be from 0x0000FFFF00000000 to 0x0000FFFF1FFFFFFF, which will cause the engine hang. So to avoid the hole, limit the max mc address to AMDGPU_GMC_HOLE_START.:wq Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-09drm/amdgpu: fix AGP location with VRAM at 0x0Christian König1-5/+2
That also simplifies handling quite a bit. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-14drm/amdgpu: fix mask in GART location calculationChristian König1-1/+1
We need to mask the lower bits not the upper one. Fixes: ec210e3226dc0 drm/amdgpu: put GART away from VRAM v2 Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: James Zhu <James.Zhu@amd.com> Tested-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-10drm/amdgpu/gmc9: Adjust GART and AGP location with xgmi offset (v2)Alex Deucher1-10/+15
On hives with xgmi enabled, the fb_location aperture is a size which defines the total framebuffer size of all nodes in the hive. Each GPU in the hive has the same view via the fb_location aperture. GPU0 starts at offset (0 * segment size), GPU1 starts at offset (1 * segment size), etc. For access to local vram on each GPU, we need to take this offset into account. This including on setting up GPUVM page table and GART table v2: squash in "drm/amdgpu: Init correct fb region for none XGMI configuration" Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Slava Abramov <slava.abramov@amd.com> Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Huang Rui <ray.huang@amd.com>
2018-09-10drm/amdgpu: use the AGP aperture for system memory access v2Christian König1-0/+23
Start to use the old AGP aperture for system memory access. v2: Move that to amdgpu_ttm_alloc_gart Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-10drm/amdgpu: add amdgpu_gmc_agp_location v3Christian König1-0/+43
Helper to figure out the location of the AGP BAR. v2: fix a couple of bugs v3: correctly add one to vram_end Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-30drm/amdgpu: put GART away from VRAM v2Christian König1-3/+5
Always try to put the GART away from where VRAM is. v2: correctly handle the 4GB limitation Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-29drm/amdgpu: use the smaller hole for GARTChristian König1-1/+2
Instead of the larger one use the smaller hole in the MC address space for the GART mappings. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-29drm/amdgpu: fix amdgpu_gmc_gart_location a little bitChristian König1-15/+13
Improve the VCE limitation handling. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-29drm/amdgpu: move amdgpu_device_(vram|gtt)_locationChristian König1-0/+64
Move that into amdgpu_gmc.c since we are really deadling with GMC address space here. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amdgpu: add amdgpu_gmc_get_pde_for_bo helper v2Christian König1-2/+35
Helper to get the PDE for a PD/PT. v2: improve documentation Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amdgpu: add amdgpu_gmc_pd_addr helperChristian König1-0/+47
Add a helper to get the root PD address and remove the workarounds from the GMC9 code for that. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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