diff options
| author | Christian König <christian.koenig@amd.com> | 2018-08-24 10:48:12 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-30 09:03:37 -0500 |
| commit | ec210e3226dc0b481ac1b33082b3b508f89387e3 (patch) | |
| tree | a7daa5f0e005183cc288c8018a2ca126f79f0ef4 /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | |
| parent | d9997b64c52b70bd98c48f443f068253621d1ffc (diff) | |
drm/amdgpu: put GART away from VRAM v2
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 265ec6807130..c6bcc4715373 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -116,6 +116,7 @@ void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc, */ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) { + const uint64_t four_gb = 0x100000000ULL; u64 size_af, size_bf; mc->gart_size += adev->pm.smu_prv_buffer_size; @@ -124,8 +125,7 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) * the GART base on a 4GB boundary as well. */ size_bf = mc->vram_start; - size_af = adev->gmc.mc_mask + 1 - - ALIGN(mc->vram_end + 1, 0x100000000ULL); + size_af = adev->gmc.mc_mask + 1 - ALIGN(mc->vram_end + 1, four_gb); if (mc->gart_size > max(size_bf, size_af)) { dev_warn(adev->dev, "limiting GART\n"); @@ -136,7 +136,9 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) (size_af < mc->gart_size)) mc->gart_start = 0; else - mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL); + mc->gart_start = mc->mc_mask - mc->gart_size + 1; + + mc->gart_start &= four_gb - 1; 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); |