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drm/amdgpu/gmc10: adjust gart size for parts that support S/G display

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For GMC 10 parts which support scatter/gather display (display
from system memory), we should allocate a larger gart size
to better handler larger displays.  This mirrors what we already
do for GMC 9 parts.

v2: fix typo (Alex)

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2022-05-09 11:40:09 -04:00
parent 737dad0b5d
commit 88c775bbeb
1 changed files with 14 additions and 3 deletions
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17
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
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@@ -834,10 +834,21 @@ static int gmc_v10_0_mc_init(struct amdgpu_device *adev)
adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
/* set the gart size */
if (amdgpu_gart_size == -1)
adev->gmc.gart_size = 512ULL << 20;
else
if (amdgpu_gart_size == -1) {
switch (adev->ip_versions[GC_HWIP][0]) {
default:
adev->gmc.gart_size = 512ULL << 20;
break;
case IP_VERSION(10, 3, 1): /* DCE SG support */
case IP_VERSION(10, 3, 3): /* DCE SG support */
case IP_VERSION(10, 3, 6): /* DCE SG support */
case IP_VERSION(10, 3, 7): /* DCE SG support */
adev->gmc.gart_size = 1024ULL << 20;
break;
}
} else {
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
}
gmc_v10_0_vram_gtt_location(adev, &adev->gmc);