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| author |   Jiadong Zhu <Jiadong.Zhu@amd.com> | 2024-07-04 12:24:31 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2024-08-16 14:18:27 -0400 |
| commit | 2e9bbdd7b7cb5f364a917e7c6eff2a2c36f11895 (patch) | |
| tree | 0a464e0a07a7028ac081d8be7279b190e88103b2 /drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | |
| parent | drm/amdgpu/gfx: add a new kiq_pm4_funcs callback for reset_hw_queue (diff) | |
| download | wireguard-linux-2e9bbdd7b7cb5f364a917e7c6eff2a2c36f11895.tar.xz wireguard-linux-2e9bbdd7b7cb5f364a917e7c6eff2a2c36f11895.zip | |
drm/amdgpu/gfx9: implement reset_hw_queue for gfx9
Using mmio to do queue reset. Enter safe mode
when writing registers.
Acked-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Jiadong Zhu <Jiadong.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index f87e6e9c7d6b..02ff70f4b416 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -893,6 +893,8 @@ static int gfx_v9_0_ras_error_inject(struct amdgpu_device *adev, static void gfx_v9_0_reset_ras_error_count(struct amdgpu_device *adev); static void gfx_v9_0_update_spm_vmid_internal(struct amdgpu_device *adev, unsigned int vmid); +static void gfx_v9_0_set_safe_mode(struct amdgpu_device *adev, int xcc_id); +static void gfx_v9_0_unset_safe_mode(struct amdgpu_device *adev, int xcc_id); static void gfx_v9_0_kiq_set_resources(struct amdgpu_ring *kiq_ring, uint64_t queue_mask) @@ -1004,12 +1006,47 @@ static void gfx_v9_0_kiq_invalidate_tlbs(struct amdgpu_ring *kiq_ring, PACKET3_INVALIDATE_TLBS_FLUSH_TYPE(flush_type)); } + +static void gfx_v9_0_kiq_reset_hw_queue(struct amdgpu_ring *kiq_ring, uint32_t queue_type, + uint32_t me_id, uint32_t pipe_id, uint32_t queue_id, + uint32_t xcc_id, uint32_t vmid) +{ + struct amdgpu_device *adev = kiq_ring->adev; + unsigned i; + + /* enter save mode */ + gfx_v9_0_set_safe_mode(adev, xcc_id); + mutex_lock(&adev->srbm_mutex); + soc15_grbm_select(adev, me_id, pipe_id, queue_id, 0, 0); + + if (queue_type == AMDGPU_RING_TYPE_COMPUTE) { + WREG32_SOC15(GC, 0, mmCP_HQD_DEQUEUE_REQUEST, 0x2); + WREG32_SOC15(GC, 0, mmSPI_COMPUTE_QUEUE_RESET, 0x1); + /* wait till dequeue take effects */ + for (i = 0; i < adev->usec_timeout; i++) { + if (!(RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE) & 1)) + break; + udelay(1); + } + if (i >= adev->usec_timeout) + dev_err(adev->dev, "fail to wait on hqd deactive\n"); + } else { + dev_err(adev->dev, "reset queue_type(%d) not supported\n", queue_type); + } + + soc15_grbm_select(adev, 0, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); + /* exit safe mode */ + gfx_v9_0_unset_safe_mode(adev, xcc_id); +} + static const struct kiq_pm4_funcs gfx_v9_0_kiq_pm4_funcs = { .kiq_set_resources = gfx_v9_0_kiq_set_resources, .kiq_map_queues = gfx_v9_0_kiq_map_queues, .kiq_unmap_queues = gfx_v9_0_kiq_unmap_queues, .kiq_query_status = gfx_v9_0_kiq_query_status, .kiq_invalidate_tlbs = gfx_v9_0_kiq_invalidate_tlbs, + .kiq_reset_hw_queue = gfx_v9_0_kiq_reset_hw_queue, .set_resources_size = 8, .map_queues_size = 7, .unmap_queues_size = 6, |