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drm/amdgpu: Reserve 0-2 invalidation reg sets for none-amdgpu usages

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Firmware used reg set 2 for tlb invalidation. AMDGPU can start from reg
set 3 to avoid the conflict. AMDKFD will use the reg set 0 or 1 when
necesary.

Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewws-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shaoyun Liu
2017-04-28 16:14:59 -04:00
committed by Alex Deucher
parent fca4ce697f
commit 43b9176faa
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+1 -1
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@@ -386,7 +386,7 @@ static int gmc_v9_0_early_init(void *handle)
static int gmc_v9_0_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 0 };
unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 3, 3 };
unsigned i;
for(i = 0; i < adev->num_rings; ++i) {