drm/amdgpu/sdma7: add support for disable_kq

When the parameter is set, disable user submissions
to kernel queues.

Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
index 99744728f5cb310ee55da55bb12837c7f4b7c5d5..4f66b81110bbbfa54da7322485fdaf5db190c44c 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
@@ -1254,6 +1254,9 @@ static int sdma_v7_0_early_init(struct amdgpu_ip_block *ip_block)
        struct amdgpu_device *adev = ip_block->adev;
        int r;
 
+       if (amdgpu_disable_kq == 1)
+               adev->sdma.no_user_submission = true;
+
        r = amdgpu_sdma_init_microcode(adev, 0, true);
        if (r) {
                DRM_ERROR("Failed to init sdma firmware!\n");
@@ -1289,6 +1292,7 @@ static int sdma_v7_0_sw_init(struct amdgpu_ip_block *ip_block)
                ring->ring_obj = NULL;
                ring->use_doorbell = true;
                ring->me = i;
+               ring->no_user_submission = adev->sdma.no_user_submission;
 
                DRM_DEBUG("SDMA %d use_doorbell being set to: [%s]\n", i,
                                ring->use_doorbell?"true":"false");