[PATCH 5.14 072/172] drm/amdgpu: correct initial cp_hqd_quantum for gfx9

Greg Kroah-Hartman
2021-10-04T13:33:12Z

From: Hawking Zhang <Hawking.Zhang@amd.com>

commit 9f52c25f59b504a29dda42d83ac1e24d2af535d4 upstream.

didn't read the value of mmCP_HQD_QUANTUM from correct
register offset

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3598,7 +3598,7 @@ static int gfx_v9_0_mqd_init(struct amdg

/* set static priority for a queue/ring */
gfx_v9_0_mqd_set_priority(ring, mqd);
- mqd->cp_hqd_quantum = RREG32(mmCP_HQD_QUANTUM);
+ mqd->cp_hqd_quantum = RREG32_SOC15(GC, 0, mmCP_HQD_QUANTUM);

/* map_queues packet doesn't need activate the queue,
* so only kiq need set this field.