From: Michael Chen Date: Thu, 13 Nov 2025 17:56:43 +0000 (-0500) Subject: drm/amd/amdgpu: reserve vm invalidation engine for uni_mes X-Git-Tag: v6.18~15^2~2^2~6 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=971fb57429df5aa4e6efc796f7841e0d10b1e83c;p=thirdparty%2Flinux.git drm/amd/amdgpu: reserve vm invalidation engine for uni_mes Reserve vm invalidation engine 6 when uni_mes enabled. It is used in processing tlb flush request from host. Signed-off-by: Michael Chen Acked-by: Alex Deucher Reviewed-by: Shaoyun liu Signed-off-by: Alex Deucher (cherry picked from commit 873373739b9b150720ea2c5390b4e904a4d21505) Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 9dcf51991b5b6..869bceb0fe2c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -597,6 +597,9 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev) /* reserve engine 5 for firmware */ if (adev->enable_mes) vm_inv_engs[i] &= ~(1 << 5); + /* reserve engine 6 for uni mes */ + if (adev->enable_uni_mes) + vm_inv_engs[i] &= ~(1 << 6); /* reserve mmhub engine 3 for firmware */ if (adev->enable_umsch_mm) vm_inv_engs[i] &= ~(1 << 3);