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drm/amd: Disable XNACK on SRIOV environment

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The purpose of this patch is to disable XNACK or set XNACK OFF mode
on SRIOV platform which doesn't support it.

This will prevent user-space application to fail or result into
unexpected behaviour whenever the application need to run test-case
in XNACK ON mode.

Signed-off-by: Surbhi Kakarya <surbhi.kakarya@amd.com>
Reviewed-by: Shaoyun Liu <shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Surbhi Kakarya
2023-09-25 12:12:10 -04:00
committed by Alex Deucher
parent 9ccde17d46
commit 9256e8d47a
4 changed files with 21 additions and 2 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@@ -826,7 +826,10 @@ void amdgpu_gmc_noretry_set(struct amdgpu_device *adev)
gc_ver == IP_VERSION(9, 4, 3) ||
gc_ver >= IP_VERSION(10, 3, 0));
gmc->noretry = (amdgpu_noretry == -1) ? noretry_default : amdgpu_noretry;
if (!amdgpu_sriov_xnack_support(adev))
gmc->noretry = 1;
else
gmc->noretry = (amdgpu_noretry == -1) ? noretry_default : amdgpu_noretry;
}
void amdgpu_gmc_set_vm_fault_masks(struct amdgpu_device *adev, int hub_type,