[AMD Official Use Only - General] Reviewed-by: Hawking Zhang <[email protected]>
Regards, Hawking -----Original Message----- From: amd-gfx <[email protected]> On Behalf Of Jack Xiao Sent: Thursday, November 17, 2022 17:11 To: [email protected]; Deucher, Alexander <[email protected]>; Zhang, Hawking <[email protected]>; Koenig, Christian <[email protected]>; Pan, Xinhui <[email protected]>; Sider, Graham <[email protected]> Cc: Xiao, Jack <[email protected]> Subject: [PATCH] drm/amd/amdgpu: reserve vm invalidation engine for firmware If mes enabled, reserve VM invalidation engine 5 for firmware. Signed-off-by: Jack Xiao <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 4365ede42855..e970e3760cec 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -479,6 +479,12 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev) unsigned i; unsigned vmhub, inv_eng; + if (adev->enable_mes) { + /* reserve engine 5 for firmware */ + for (vmhub = 0; vmhub < AMDGPU_MAX_VMHUBS; vmhub++) + vm_inv_engs[vmhub] &= ~(1 << 5); + } + for (i = 0; i < adev->num_rings; ++i) { ring = adev->rings[i]; vmhub = ring->funcs->vmhub; -- 2.37.3
