On 2020-03-03 7:50 a.m., Nirmoy Das wrote:
> amdgpu statically set priority for compute queues
> at initialization so remove all the functions
> responsible changing compute queue priority dynamically
If this is just a blob of words and not a proper
sentence or paragraph, how can we trust the changes
of this patch series?
"amdgpu" is "AMDGPU", "sets", end with a period.
Regards,
Luben
>
> Signed-off-by: Nirmoy Das <nirmoy....@amd.com>
> Reviewed-by: Christian König <christian.koe...@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 70 ----------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 7 --
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 99 ----------------------
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 100 -----------------------
> 4 files changed, 276 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> index ca6b52054b4b..a7e1d0425ed0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> @@ -150,76 +150,6 @@ void amdgpu_ring_undo(struct amdgpu_ring *ring)
> ring->funcs->end_use(ring);
> }
>
> -/**
> - * amdgpu_ring_priority_put - restore a ring's priority
> - *
> - * @ring: amdgpu_ring structure holding the information
> - * @priority: target priority
> - *
> - * Release a request for executing at @priority
> - */
> -void amdgpu_ring_priority_put(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority)
> -{
> - int i;
> -
> - if (!ring->funcs->set_priority)
> - return;
> -
> - if (atomic_dec_return(&ring->num_jobs[priority]) > 0)
> - return;
> -
> - /* no need to restore if the job is already at the lowest priority */
> - if (priority == DRM_SCHED_PRIORITY_NORMAL)
> - return;
> -
> - mutex_lock(&ring->priority_mutex);
> - /* something higher prio is executing, no need to decay */
> - if (ring->priority > priority)
> - goto out_unlock;
> -
> - /* decay priority to the next level with a job available */
> - for (i = priority; i >= DRM_SCHED_PRIORITY_MIN; i--) {
> - if (i == DRM_SCHED_PRIORITY_NORMAL
> - || atomic_read(&ring->num_jobs[i])) {
> - ring->priority = i;
> - ring->funcs->set_priority(ring, i);
> - break;
> - }
> - }
> -
> -out_unlock:
> - mutex_unlock(&ring->priority_mutex);
> -}
> -
> -/**
> - * amdgpu_ring_priority_get - change the ring's priority
> - *
> - * @ring: amdgpu_ring structure holding the information
> - * @priority: target priority
> - *
> - * Request a ring's priority to be raised to @priority (refcounted).
> - */
> -void amdgpu_ring_priority_get(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority)
> -{
> - if (!ring->funcs->set_priority)
> - return;
> -
> - if (atomic_inc_return(&ring->num_jobs[priority]) <= 0)
> - return;
> -
> - mutex_lock(&ring->priority_mutex);
> - if (priority <= ring->priority)
> - goto out_unlock;
> -
> - ring->priority = priority;
> - ring->funcs->set_priority(ring, priority);
> -
> -out_unlock:
> - mutex_unlock(&ring->priority_mutex);
> -}
> -
> /**
> * amdgpu_ring_init - init driver ring struct.
> *
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> index 201c6ac7bf9d..a75e2418a20e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> @@ -167,9 +167,6 @@ struct amdgpu_ring_funcs {
> uint32_t reg0, uint32_t reg1,
> uint32_t ref, uint32_t mask);
> void (*emit_tmz)(struct amdgpu_ring *ring, bool start);
> - /* priority functions */
> - void (*set_priority) (struct amdgpu_ring *ring,
> - enum drm_sched_priority priority);
> /* Try to soft recover the ring to make the fence signal */
> void (*soft_recovery)(struct amdgpu_ring *ring, unsigned vmid);
> int (*preempt_ib)(struct amdgpu_ring *ring);
> @@ -259,10 +256,6 @@ void amdgpu_ring_insert_nop(struct amdgpu_ring *ring,
> uint32_t count);
> void amdgpu_ring_generic_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib
> *ib);
> void amdgpu_ring_commit(struct amdgpu_ring *ring);
> void amdgpu_ring_undo(struct amdgpu_ring *ring);
> -void amdgpu_ring_priority_get(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority);
> -void amdgpu_ring_priority_put(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority);
> int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
> unsigned ring_size, struct amdgpu_irq_src *irq_src,
> unsigned irq_type);
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 05b6f01e1228..f5029eb9ac12 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -6275,104 +6275,6 @@ static void gfx_v8_0_ring_set_wptr_compute(struct
> amdgpu_ring *ring)
> WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr));
> }
>
> -static void gfx_v8_0_ring_set_pipe_percent(struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - struct amdgpu_device *adev = ring->adev;
> - int pipe_num, tmp, reg;
> - int pipe_percent = acquire ? SPI_WCL_PIPE_PERCENT_GFX__VALUE_MASK : 0x1;
> -
> - pipe_num = ring->me * adev->gfx.mec.num_pipe_per_mec + ring->pipe;
> -
> - /* first me only has 2 entries, GFX and HP3D */
> - if (ring->me > 0)
> - pipe_num -= 2;
> -
> - reg = mmSPI_WCL_PIPE_PERCENT_GFX + pipe_num;
> - tmp = RREG32(reg);
> - tmp = REG_SET_FIELD(tmp, SPI_WCL_PIPE_PERCENT_GFX, VALUE, pipe_percent);
> - WREG32(reg, tmp);
> -}
> -
> -static void gfx_v8_0_pipe_reserve_resources(struct amdgpu_device *adev,
> - struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - int i, pipe;
> - bool reserve;
> - struct amdgpu_ring *iring;
> -
> - mutex_lock(&adev->gfx.pipe_reserve_mutex);
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev, ring->me, ring->pipe, 0);
> - if (acquire)
> - set_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - else
> - clear_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> -
> - if (!bitmap_weight(adev->gfx.pipe_reserve_bitmap,
> AMDGPU_MAX_COMPUTE_QUEUES)) {
> - /* Clear all reservations - everyone reacquires all resources */
> - for (i = 0; i < adev->gfx.num_gfx_rings; ++i)
> - gfx_v8_0_ring_set_pipe_percent(&adev->gfx.gfx_ring[i],
> - true);
> -
> - for (i = 0; i < adev->gfx.num_compute_rings; ++i)
> -
> gfx_v8_0_ring_set_pipe_percent(&adev->gfx.compute_ring[i],
> - true);
> - } else {
> - /* Lower all pipes without a current reservation */
> - for (i = 0; i < adev->gfx.num_gfx_rings; ++i) {
> - iring = &adev->gfx.gfx_ring[i];
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev,
> - iring->me,
> - iring->pipe,
> - 0);
> - reserve = test_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - gfx_v8_0_ring_set_pipe_percent(iring, reserve);
> - }
> -
> - for (i = 0; i < adev->gfx.num_compute_rings; ++i) {
> - iring = &adev->gfx.compute_ring[i];
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev,
> - iring->me,
> - iring->pipe,
> - 0);
> - reserve = test_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - gfx_v8_0_ring_set_pipe_percent(iring, reserve);
> - }
> - }
> -
> - mutex_unlock(&adev->gfx.pipe_reserve_mutex);
> -}
> -
> -static void gfx_v8_0_hqd_set_priority(struct amdgpu_device *adev,
> - struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - uint32_t pipe_priority = acquire ? 0x2 : 0x0;
> - uint32_t queue_priority = acquire ? 0xf : 0x0;
> -
> - mutex_lock(&adev->srbm_mutex);
> - vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
> -
> - WREG32(mmCP_HQD_PIPE_PRIORITY, pipe_priority);
> - WREG32(mmCP_HQD_QUEUE_PRIORITY, queue_priority);
> -
> - vi_srbm_select(adev, 0, 0, 0, 0);
> - mutex_unlock(&adev->srbm_mutex);
> -}
> -static void gfx_v8_0_ring_set_priority_compute(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority)
> -{
> - struct amdgpu_device *adev = ring->adev;
> - bool acquire = priority == DRM_SCHED_PRIORITY_HIGH_HW;
> -
> - if (ring->funcs->type != AMDGPU_RING_TYPE_COMPUTE)
> - return;
> -
> - gfx_v8_0_hqd_set_priority(adev, ring, acquire);
> - gfx_v8_0_pipe_reserve_resources(adev, ring, acquire);
> -}
> -
> static void gfx_v8_0_ring_emit_fence_compute(struct amdgpu_ring *ring,
> u64 addr, u64 seq,
> unsigned flags)
> @@ -7005,7 +6907,6 @@ static const struct amdgpu_ring_funcs
> gfx_v8_0_ring_funcs_compute = {
> .test_ib = gfx_v8_0_ring_test_ib,
> .insert_nop = amdgpu_ring_insert_nop,
> .pad_ib = amdgpu_ring_generic_pad_ib,
> - .set_priority = gfx_v8_0_ring_set_priority_compute,
> .emit_wreg = gfx_v8_0_ring_emit_wreg,
> };
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index ef263d075e06..a27b18d58aca 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -5130,105 +5130,6 @@ static u64 gfx_v9_0_ring_get_wptr_compute(struct
> amdgpu_ring *ring)
> return wptr;
> }
>
> -static void gfx_v9_0_ring_set_pipe_percent(struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - struct amdgpu_device *adev = ring->adev;
> - int pipe_num, tmp, reg;
> - int pipe_percent = acquire ? SPI_WCL_PIPE_PERCENT_GFX__VALUE_MASK : 0x1;
> -
> - pipe_num = ring->me * adev->gfx.mec.num_pipe_per_mec + ring->pipe;
> -
> - /* first me only has 2 entries, GFX and HP3D */
> - if (ring->me > 0)
> - pipe_num -= 2;
> -
> - reg = SOC15_REG_OFFSET(GC, 0, mmSPI_WCL_PIPE_PERCENT_GFX) + pipe_num;
> - tmp = RREG32(reg);
> - tmp = REG_SET_FIELD(tmp, SPI_WCL_PIPE_PERCENT_GFX, VALUE, pipe_percent);
> - WREG32(reg, tmp);
> -}
> -
> -static void gfx_v9_0_pipe_reserve_resources(struct amdgpu_device *adev,
> - struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - int i, pipe;
> - bool reserve;
> - struct amdgpu_ring *iring;
> -
> - mutex_lock(&adev->gfx.pipe_reserve_mutex);
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev, ring->me, ring->pipe, 0);
> - if (acquire)
> - set_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - else
> - clear_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> -
> - if (!bitmap_weight(adev->gfx.pipe_reserve_bitmap,
> AMDGPU_MAX_COMPUTE_QUEUES)) {
> - /* Clear all reservations - everyone reacquires all resources */
> - for (i = 0; i < adev->gfx.num_gfx_rings; ++i)
> - gfx_v9_0_ring_set_pipe_percent(&adev->gfx.gfx_ring[i],
> - true);
> -
> - for (i = 0; i < adev->gfx.num_compute_rings; ++i)
> -
> gfx_v9_0_ring_set_pipe_percent(&adev->gfx.compute_ring[i],
> - true);
> - } else {
> - /* Lower all pipes without a current reservation */
> - for (i = 0; i < adev->gfx.num_gfx_rings; ++i) {
> - iring = &adev->gfx.gfx_ring[i];
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev,
> - iring->me,
> - iring->pipe,
> - 0);
> - reserve = test_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - gfx_v9_0_ring_set_pipe_percent(iring, reserve);
> - }
> -
> - for (i = 0; i < adev->gfx.num_compute_rings; ++i) {
> - iring = &adev->gfx.compute_ring[i];
> - pipe = amdgpu_gfx_mec_queue_to_bit(adev,
> - iring->me,
> - iring->pipe,
> - 0);
> - reserve = test_bit(pipe, adev->gfx.pipe_reserve_bitmap);
> - gfx_v9_0_ring_set_pipe_percent(iring, reserve);
> - }
> - }
> -
> - mutex_unlock(&adev->gfx.pipe_reserve_mutex);
> -}
> -
> -static void gfx_v9_0_hqd_set_priority(struct amdgpu_device *adev,
> - struct amdgpu_ring *ring,
> - bool acquire)
> -{
> - uint32_t pipe_priority = acquire ? 0x2 : 0x0;
> - uint32_t queue_priority = acquire ? 0xf : 0x0;
> -
> - mutex_lock(&adev->srbm_mutex);
> - soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
> -
> - WREG32_SOC15_RLC(GC, 0, mmCP_HQD_PIPE_PRIORITY, pipe_priority);
> - WREG32_SOC15_RLC(GC, 0, mmCP_HQD_QUEUE_PRIORITY, queue_priority);
> -
> - soc15_grbm_select(adev, 0, 0, 0, 0);
> - mutex_unlock(&adev->srbm_mutex);
> -}
> -
> -static void gfx_v9_0_ring_set_priority_compute(struct amdgpu_ring *ring,
> - enum drm_sched_priority priority)
> -{
> - struct amdgpu_device *adev = ring->adev;
> - bool acquire = priority == DRM_SCHED_PRIORITY_HIGH_HW;
> -
> - if (ring->funcs->type != AMDGPU_RING_TYPE_COMPUTE)
> - return;
> -
> - gfx_v9_0_hqd_set_priority(adev, ring, acquire);
> - gfx_v9_0_pipe_reserve_resources(adev, ring, acquire);
> -}
> -
> static void gfx_v9_0_ring_set_wptr_compute(struct amdgpu_ring *ring)
> {
> struct amdgpu_device *adev = ring->adev;
> @@ -6599,7 +6500,6 @@ static const struct amdgpu_ring_funcs
> gfx_v9_0_ring_funcs_compute = {
> .test_ib = gfx_v9_0_ring_test_ib,
> .insert_nop = amdgpu_ring_insert_nop,
> .pad_ib = amdgpu_ring_generic_pad_ib,
> - .set_priority = gfx_v9_0_ring_set_priority_compute,
> .emit_wreg = gfx_v9_0_ring_emit_wreg,
> .emit_reg_wait = gfx_v9_0_ring_emit_reg_wait,
> .emit_reg_write_reg_wait = gfx_v9_0_ring_emit_reg_write_reg_wait,
>
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