diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2025-01-01 10:01:50 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-01-24 09:52:43 -0500 |
| commit | b1df8050e7c7b7c1ff8ce9715e12f1c825aedbc3 (patch) | |
| tree | 96e8cd2a6b05f26e5717376300b7eeef63da7567 /drivers/gpu/drm/amd | |
| parent | 9d63fbf75158811bccd08c5ac9b2db70427c3e51 (diff) | |
drm/amdgpu: Add handler for SDMA context empty
Context empty interrupt is enabled for SDMA 4.4.2. Add a handler for
context empty interrupt so that it is disposed of fast, and not
propagated to KFD layer.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 22 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index 2db58b5812a8..5f60736051d1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -107,6 +107,7 @@ struct amdgpu_sdma { struct amdgpu_irq_src doorbell_invalid_irq; struct amdgpu_irq_src pool_timeout_irq; struct amdgpu_irq_src srbm_write_irq; + struct amdgpu_irq_src ctxt_empty_irq; int num_instances; uint32_t sdma_mask; diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c index 48537eba225d..5e0066cd6c51 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c @@ -1406,6 +1406,12 @@ static int sdma_v4_4_2_sw_init(struct amdgpu_ip_block *ip_block) &adev->sdma.srbm_write_irq); if (r) return r; + + r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i), + SDMA0_4_0__SRCID__SDMA_CTXEMPTY, + &adev->sdma.ctxt_empty_irq); + if (r) + return r; } for (i = 0; i < adev->sdma.num_instances; i++) { @@ -1814,6 +1820,16 @@ static int sdma_v4_4_2_process_srbm_write_irq(struct amdgpu_device *adev, return 0; } +static int sdma_v4_4_2_process_ctxt_empty_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + /* There is nothing useful to be done here, only kept for debug */ + dev_dbg_ratelimited(adev->dev, "SDMA context empty interrupt"); + sdma_v4_4_2_print_iv_entry(adev, entry); + return 0; +} + static void sdma_v4_4_2_inst_update_medium_grain_light_sleep( struct amdgpu_device *adev, bool enable, uint32_t inst_mask) { @@ -2096,6 +2112,10 @@ static const struct amdgpu_irq_src_funcs sdma_v4_4_2_srbm_write_irq_funcs = { .process = sdma_v4_4_2_process_srbm_write_irq, }; +static const struct amdgpu_irq_src_funcs sdma_v4_4_2_ctxt_empty_irq_funcs = { + .process = sdma_v4_4_2_process_ctxt_empty_irq, +}; + static void sdma_v4_4_2_set_irq_funcs(struct amdgpu_device *adev) { adev->sdma.trap_irq.num_types = adev->sdma.num_instances; @@ -2104,6 +2124,7 @@ static void sdma_v4_4_2_set_irq_funcs(struct amdgpu_device *adev) adev->sdma.doorbell_invalid_irq.num_types = adev->sdma.num_instances; adev->sdma.pool_timeout_irq.num_types = adev->sdma.num_instances; adev->sdma.srbm_write_irq.num_types = adev->sdma.num_instances; + adev->sdma.ctxt_empty_irq.num_types = adev->sdma.num_instances; adev->sdma.trap_irq.funcs = &sdma_v4_4_2_trap_irq_funcs; adev->sdma.illegal_inst_irq.funcs = &sdma_v4_4_2_illegal_inst_irq_funcs; @@ -2112,6 +2133,7 @@ static void sdma_v4_4_2_set_irq_funcs(struct amdgpu_device *adev) adev->sdma.doorbell_invalid_irq.funcs = &sdma_v4_4_2_doorbell_invalid_irq_funcs; adev->sdma.pool_timeout_irq.funcs = &sdma_v4_4_2_pool_timeout_irq_funcs; adev->sdma.srbm_write_irq.funcs = &sdma_v4_4_2_srbm_write_irq_funcs; + adev->sdma.ctxt_empty_irq.funcs = &sdma_v4_4_2_ctxt_empty_irq_funcs; } /** |