[PATCH 3/3] drm/amdgpu: enable only one compute queue for raven

[Nirmoy Das]

Because of firmware bug, Raven asics can't handle jobs
scheduled to multiple compute queues. So enable only one
compute queue till we have a firmware fix.

Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 97a8f786cf85..9352fcb77fe9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -812,6 +812,13 @@ void amdgpu_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
 int amdgpu_gfx_get_num_kcq(struct amdgpu_device *adev)
 {
 	if (amdgpu_num_kcq == -1) {
+		/* raven firmware currently can not load balance jobs
+		 * among multiple compute queues. Enable only one
+		 * compute queue till we have a firmware fix.
+		 */
+		if (adev->asic_type == CHIP_RAVEN)
+			return 1;
+
 		return 8;
 	} else if (amdgpu_num_kcq > 8 || amdgpu_num_kcq < 0) {
 		dev_warn(adev->dev, "set kernel compute queue number to 8 due to invalid parameter provided by user\n");
-- 
2.29.0