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drm/amdgpu: Set default xnack mode for gfx_v12.1 A0/B0

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For A0, default xnack mode is off
For BO, default xnack mode is on

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Philip.Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harish Kasiviswanathan 2025-12-09 09:29:28 -05:00 committed by Alex Deucher
parent 3ed01c8620
commit bfeb7b28e9
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@ -1007,6 +1007,9 @@ void amdgpu_gmc_noretry_set(struct amdgpu_device *adev)
gc_ver == IP_VERSION(9, 5, 0) ||
gc_ver >= IP_VERSION(10, 3, 0));
/* For GFX12.1 B0, set xnack (retry) on as default */
if (gc_ver == IP_VERSION(12, 1, 0) && (adev->rev_id & 0xf) == 0x1)
noretry_default = false;
if (!amdgpu_sriov_xnack_support(adev))
gmc->noretry = 1;
else