diff options
author | Christian König <christian.koenig@amd.com> | 2018-08-23 15:20:43 +0200 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-29 12:35:18 -0500 |
commit | 961c75cf203179d0c546722290bf4b1147e5feb1 (patch) | |
tree | e0aa2398b814eb1bfa752f2f4eaed428e53c816f /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | |
parent | efa9a5ef10fbbf500e6b479359dde72947a9799e (diff) |
drm/amdgpu: move amdgpu_device_(vram|gtt)_location
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index a249931ef512..72dffa3fd194 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -78,3 +78,67 @@ uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo) } return pd_addr; } + +/** + * amdgpu_gmc_vram_location - try to find VRAM location + * + * @adev: amdgpu device structure holding all necessary informations + * @mc: memory controller structure holding memory informations + * @base: base address at which to put VRAM + * + * Function will try to place VRAM at base address provided + * as parameter. + */ +void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc, + u64 base) +{ + uint64_t limit = (uint64_t)amdgpu_vram_limit << 20; + + mc->vram_start = base; + mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; + if (limit && limit < mc->real_vram_size) + mc->real_vram_size = limit; + dev_info(adev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", + mc->mc_vram_size >> 20, mc->vram_start, + mc->vram_end, mc->real_vram_size >> 20); +} + +/** + * amdgpu_gmc_gart_location - try to find GART location + * + * @adev: amdgpu device structure holding all necessary informations + * @mc: memory controller structure holding memory informations + * + * Function will place try to place GART before or after VRAM. + * + * If GART size is bigger than space left then we ajust GART size. + * Thus function will never fails. + */ +void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) +{ + u64 size_af, size_bf; + + mc->gart_size += adev->pm.smu_prv_buffer_size; + + size_af = adev->gmc.mc_mask - mc->vram_end; + size_bf = mc->vram_start; + if (size_bf > size_af) { + if (mc->gart_size > size_bf) { + dev_warn(adev->dev, "limiting GART\n"); + mc->gart_size = size_bf; + } + mc->gart_start = 0; + } else { + if (mc->gart_size > size_af) { + dev_warn(adev->dev, "limiting GART\n"); + mc->gart_size = size_af; + } + /* VCE doesn't like it when BOs cross a 4GB segment, so align + * the GART base on a 4GB boundary as well. + */ + mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL); + } + mc->gart_end = mc->gart_start + mc->gart_size - 1; + dev_info(adev->dev, "GART: %lluM 0x%016llX - 0x%016llX\n", + mc->gart_size >> 20, mc->gart_start, mc->gart_end); +} |