drm/amdgpu: move amdgpu_num_kcq handling to a helper

Add a helper so we can set per asic default values. Also,
the module parameter is currently clamped to 8, but clamp it
per asic just in case some asics have different limits in the
future. Enable the option on gfx6,7 as well for consistency.

Acked-by: Nirmoy Das <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 8c9bacfdbc30..e584f48f3b54 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -804,3 +804,14 @@ failed_undo:
 failed_kiq_write:
 	dev_err(adev->dev, "failed to write reg:%x\n", reg);
 }
+
+int amdgpu_gfx_get_num_kcq(struct amdgpu_device *adev)
+{
+	if (amdgpu_num_kcq == -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");
+		return 8;
+	}
+	return amdgpu_num_kcq;
+}