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Code Issues Releases Wiki Activity

drm/amdgpu: Refine gfx_v8_0_kcq_disable function

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Send all kcq unmap_queue packets and then wait for
complete.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-08-17 14:57:18 +08:00 committed by Alex Deucher
parent 6c10b5cc4e
commit a62a49e5b9
1 changed files with 15 additions and 14 deletions
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29
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View file

@ -5060,26 +5060,29 @@ static int gfx_v8_0_hw_init(void *handle)
return r;
}
static int gfx_v8_0_kcq_disable(struct amdgpu_ring *kiq_ring,struct amdgpu_ring *ring)
static int gfx_v8_0_kcq_disable(struct amdgpu_device *adev)
{
int r;
int r, i;
struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring;
r = amdgpu_ring_alloc(kiq_ring, 6);
r = amdgpu_ring_alloc(kiq_ring, 6 * adev->gfx.num_compute_rings);
if (r)
DRM_ERROR("Failed to lock KIQ (%d).\n", r);
/* unmap queues */
amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_UNMAP_QUEUES, 4));
amdgpu_ring_write(kiq_ring, /* Q_sel: 0, vmid: 0, engine: 0, num_Q: 1 */
for (i = 0; i < adev->gfx.num_compute_rings; i++) {
struct amdgpu_ring *ring = &adev->gfx.compute_ring[i];
amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_UNMAP_QUEUES, 4));
amdgpu_ring_write(kiq_ring, /* Q_sel: 0, vmid: 0, engine: 0, num_Q: 1 */
PACKET3_UNMAP_QUEUES_ACTION(1) | /* RESET_QUEUES */
PACKET3_UNMAP_QUEUES_QUEUE_SEL(0) |
PACKET3_UNMAP_QUEUES_ENGINE_SEL(0) |
PACKET3_UNMAP_QUEUES_NUM_QUEUES(1));
amdgpu_ring_write(kiq_ring, PACKET3_UNMAP_QUEUES_DOORBELL_OFFSET0(ring->doorbell_index));
amdgpu_ring_write(kiq_ring, 0);
amdgpu_ring_write(kiq_ring, 0);
amdgpu_ring_write(kiq_ring, 0);
amdgpu_ring_write(kiq_ring, PACKET3_UNMAP_QUEUES_DOORBELL_OFFSET0(ring->doorbell_index));
amdgpu_ring_write(kiq_ring, 0);
amdgpu_ring_write(kiq_ring, 0);
amdgpu_ring_write(kiq_ring, 0);
}
r = amdgpu_ring_test_ring(kiq_ring);
if (r)
DRM_ERROR("KCQ disable failed\n");
@ -5090,7 +5093,6 @@ static int gfx_v8_0_kcq_disable(struct amdgpu_ring *kiq_ring,struct amdgpu_ring
static int gfx_v8_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int i;
amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
@ -5100,8 +5102,7 @@ static int gfx_v8_0_hw_fini(void *handle)
amdgpu_irq_put(adev, &adev->gfx.sq_irq, 0);
/* disable KCQ to avoid CPC touch memory not valid anymore */
for (i = 0; i < adev->gfx.num_compute_rings; i++)
gfx_v8_0_kcq_disable(&adev->gfx.kiq.ring, &adev->gfx.compute_ring[i]);
gfx_v8_0_kcq_disable(adev);
if (amdgpu_sriov_vf(adev)) {
pr_debug("For SRIOV client, shouldn't do anything.\n");