[PATCH] Add support for high priority scheduling in amdgpu v2

[PATCH] Add support for high priority scheduling in amdgpu v2

[Andres Rodriguez]

Fixed incorrectly using AMDGPU_CTX_PRIORITY instead of AMD_SCHED_PRIORITY.

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[PATCH 01/22] drm/amdgpu: refactor MQD/HQD initialization

[Andres Rodriguez]

The MQD programming sequence currently exists in 3 different places.
Refactor it to absorb all the duplicates.

The success path remains mostly identical except for a slightly
different order in the non-kiq case. This shouldn't matter if the HQD
is disabled.

The error handling paths have been updated to deal with the new code
structure.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 447 ++++++++++++++++++----------------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 417 +++++++++++--------------------
 2 files changed, 387 insertions(+), 477 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 1f93545..8e1e601 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -49,6 +49,8 @@
 
 #define GFX7_NUM_GFX_RINGS     1
 #define GFX7_NUM_COMPUTE_RINGS 8
+#define GFX7_MEC_HPD_SIZE      2048
+
 
 static void gfx_v7_0_set_ring_funcs(struct amdgpu_device *adev);
 static void gfx_v7_0_set_irq_funcs(struct amdgpu_device *adev);
@@ -2799,8 +2801,6 @@ static void gfx_v7_0_mec_fini(struct amdgpu_device *adev)
 	}
 }
 
-#define MEC_HPD_SIZE 2048
-
 static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 {
 	int r;
@@ -2818,7 +2818,7 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
 		r = amdgpu_bo_create(adev,
-				     adev->gfx.mec.num_mec *adev->gfx.mec.num_pipe * MEC_HPD_SIZE * 2,
+				     adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * GFX7_MEC_HPD_SIZE * 2,
 				     PAGE_SIZE, true,
 				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
 				     &adev->gfx.mec.hpd_eop_obj);
@@ -2848,7 +2848,7 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 	}
 
 	/* clear memory.  Not sure if this is required or not */
-	memset(hpd, 0, adev->gfx.mec.num_mec *adev->gfx.mec.num_pipe * MEC_HPD_SIZE * 2);
+	memset(hpd, 0, adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * GFX7_MEC_HPD_SIZE * 2);
 
 	amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
 	amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
@@ -2923,247 +2923,282 @@ struct bonaire_mqd
 	u32 interrupt_queue[64];
 };
 
-/**
- * gfx_v7_0_cp_compute_resume - setup the compute queue registers
- *
- * @adev: amdgpu_device pointer
- *
- * Program the compute queues and test them to make sure they
- * are working.
- * Returns 0 for success, error for failure.
- */
-static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
+static void gfx_v7_0_compute_pipe_init(struct amdgpu_device *adev, int me, int pipe)
 {
-	int r, i, j;
-	u32 tmp;
-	bool use_doorbell = true;
-	u64 hqd_gpu_addr;
-	u64 mqd_gpu_addr;
 	u64 eop_gpu_addr;
-	u64 wb_gpu_addr;
-	u32 *buf;
-	struct bonaire_mqd *mqd;
-	struct amdgpu_ring *ring;
-
-	/* fix up chicken bits */
-	tmp = RREG32(mmCP_CPF_DEBUG);
-	tmp |= (1 << 23);
-	WREG32(mmCP_CPF_DEBUG, tmp);
+	u32 tmp;
+	size_t eop_offset = me * pipe * GFX7_MEC_HPD_SIZE * 2;
 
-	/* init the pipes */
 	mutex_lock(&adev->srbm_mutex);
-	for (i = 0; i < (adev->gfx.mec.num_pipe * adev->gfx.mec.num_mec); i++) {
-		int me = (i < 4) ? 1 : 2;
-		int pipe = (i < 4) ? i : (i - 4);
+	eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr + eop_offset;
 
-		eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr + (i * MEC_HPD_SIZE * 2);
+	cik_srbm_select(adev, me, pipe, 0, 0);
 
-		cik_srbm_select(adev, me, pipe, 0, 0);
+	/* write the EOP addr */
+	WREG32(mmCP_HPD_EOP_BASE_ADDR, eop_gpu_addr >> 8);
+	WREG32(mmCP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(eop_gpu_addr) >> 8);
 
-		/* write the EOP addr */
-		WREG32(mmCP_HPD_EOP_BASE_ADDR, eop_gpu_addr >> 8);
-		WREG32(mmCP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(eop_gpu_addr) >> 8);
+	/* set the VMID assigned */
+	WREG32(mmCP_HPD_EOP_VMID, 0);
 
-		/* set the VMID assigned */
-		WREG32(mmCP_HPD_EOP_VMID, 0);
+	/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
+	tmp = RREG32(mmCP_HPD_EOP_CONTROL);
+	tmp &= ~CP_HPD_EOP_CONTROL__EOP_SIZE_MASK;
+	tmp |= order_base_2(GFX7_MEC_HPD_SIZE / 8);
+	WREG32(mmCP_HPD_EOP_CONTROL, tmp);
 
-		/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
-		tmp = RREG32(mmCP_HPD_EOP_CONTROL);
-		tmp &= ~CP_HPD_EOP_CONTROL__EOP_SIZE_MASK;
-		tmp |= order_base_2(MEC_HPD_SIZE / 8);
-		WREG32(mmCP_HPD_EOP_CONTROL, tmp);
-	}
 	cik_srbm_select(adev, 0, 0, 0, 0);
 	mutex_unlock(&adev->srbm_mutex);
+}
 
-	/* init the queues.  Just two for now. */
-	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
-		ring = &adev->gfx.compute_ring[i];
+static int gfx_v7_0_mqd_deactivate(struct amdgpu_device *adev)
+{
+	int i;
 
-		if (ring->mqd_obj == NULL) {
-			r = amdgpu_bo_create(adev,
-					     sizeof(struct bonaire_mqd),
-					     PAGE_SIZE, true,
-					     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
-					     &ring->mqd_obj);
-			if (r) {
-				dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
-				return r;
-			}
+	/* disable the queue if it's active */
+	if (RREG32(mmCP_HQD_ACTIVE) & 1) {
+		WREG32(mmCP_HQD_DEQUEUE_REQUEST, 1);
+		for (i = 0; i < adev->usec_timeout; i++) {
+			if (!(RREG32(mmCP_HQD_ACTIVE) & 1))
+				break;
+			udelay(1);
 		}
 
-		r = amdgpu_bo_reserve(ring->mqd_obj, false);
-		if (unlikely(r != 0)) {
-			gfx_v7_0_cp_compute_fini(adev);
-			return r;
-		}
-		r = amdgpu_bo_pin(ring->mqd_obj, AMDGPU_GEM_DOMAIN_GTT,
-				  &mqd_gpu_addr);
-		if (r) {
-			dev_warn(adev->dev, "(%d) pin MQD bo failed\n", r);
-			gfx_v7_0_cp_compute_fini(adev);
-			return r;
-		}
-		r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&buf);
-		if (r) {
-			dev_warn(adev->dev, "(%d) map MQD bo failed\n", r);
-			gfx_v7_0_cp_compute_fini(adev);
-			return r;
-		}
+		if (i == adev->usec_timeout)
+			return -ETIMEDOUT;
 
-		/* init the mqd struct */
-		memset(buf, 0, sizeof(struct bonaire_mqd));
+		WREG32(mmCP_HQD_DEQUEUE_REQUEST, 0);
+		WREG32(mmCP_HQD_PQ_RPTR, 0);
+		WREG32(mmCP_HQD_PQ_WPTR, 0);
+	}
 
-		mqd = (struct bonaire_mqd *)buf;
-		mqd->header = 0xC0310800;
-		mqd->static_thread_mgmt01[0] = 0xffffffff;
-		mqd->static_thread_mgmt01[1] = 0xffffffff;
-		mqd->static_thread_mgmt23[0] = 0xffffffff;
-		mqd->static_thread_mgmt23[1] = 0xffffffff;
+	return 0;
+}
 
-		mutex_lock(&adev->srbm_mutex);
-		cik_srbm_select(adev, ring->me,
-				ring->pipe,
-				ring->queue, 0);
+static void gfx_v7_0_mqd_init(struct amdgpu_device *adev,
+			     struct bonaire_mqd *mqd,
+			     uint64_t mqd_gpu_addr,
+			     struct amdgpu_ring *ring)
+{
+	u64 hqd_gpu_addr;
+	u64 wb_gpu_addr;
 
-		/* disable wptr polling */
-		tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
-		tmp &= ~CP_PQ_WPTR_POLL_CNTL__EN_MASK;
-		WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
+	/* init the mqd struct */
+	memset(mqd, 0, sizeof(struct bonaire_mqd));
 
-		/* enable doorbell? */
-		mqd->queue_state.cp_hqd_pq_doorbell_control =
-			RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
-		if (use_doorbell)
-			mqd->queue_state.cp_hqd_pq_doorbell_control |= CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
-		else
-			mqd->queue_state.cp_hqd_pq_doorbell_control &= ~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
-		WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL,
-		       mqd->queue_state.cp_hqd_pq_doorbell_control);
-
-		/* disable the queue if it's active */
-		mqd->queue_state.cp_hqd_dequeue_request = 0;
-		mqd->queue_state.cp_hqd_pq_rptr = 0;
-		mqd->queue_state.cp_hqd_pq_wptr= 0;
-		if (RREG32(mmCP_HQD_ACTIVE) & 1) {
-			WREG32(mmCP_HQD_DEQUEUE_REQUEST, 1);
-			for (j = 0; j < adev->usec_timeout; j++) {
-				if (!(RREG32(mmCP_HQD_ACTIVE) & 1))
-					break;
-				udelay(1);
-			}
-			WREG32(mmCP_HQD_DEQUEUE_REQUEST, mqd->queue_state.cp_hqd_dequeue_request);
-			WREG32(mmCP_HQD_PQ_RPTR, mqd->queue_state.cp_hqd_pq_rptr);
-			WREG32(mmCP_HQD_PQ_WPTR, mqd->queue_state.cp_hqd_pq_wptr);
-		}
+	mqd->header = 0xC0310800;
+	mqd->static_thread_mgmt01[0] = 0xffffffff;
+	mqd->static_thread_mgmt01[1] = 0xffffffff;
+	mqd->static_thread_mgmt23[0] = 0xffffffff;
+	mqd->static_thread_mgmt23[1] = 0xffffffff;
 
-		/* set the pointer to the MQD */
-		mqd->queue_state.cp_mqd_base_addr = mqd_gpu_addr & 0xfffffffc;
-		mqd->queue_state.cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
-		WREG32(mmCP_MQD_BASE_ADDR, mqd->queue_state.cp_mqd_base_addr);
-		WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->queue_state.cp_mqd_base_addr_hi);
-		/* set MQD vmid to 0 */
-		mqd->queue_state.cp_mqd_control = RREG32(mmCP_MQD_CONTROL);
-		mqd->queue_state.cp_mqd_control &= ~CP_MQD_CONTROL__VMID_MASK;
-		WREG32(mmCP_MQD_CONTROL, mqd->queue_state.cp_mqd_control);
-
-		/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
-		hqd_gpu_addr = ring->gpu_addr >> 8;
-		mqd->queue_state.cp_hqd_pq_base = hqd_gpu_addr;
-		mqd->queue_state.cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);
-		WREG32(mmCP_HQD_PQ_BASE, mqd->queue_state.cp_hqd_pq_base);
-		WREG32(mmCP_HQD_PQ_BASE_HI, mqd->queue_state.cp_hqd_pq_base_hi);
-
-		/* set up the HQD, this is similar to CP_RB0_CNTL */
-		mqd->queue_state.cp_hqd_pq_control = RREG32(mmCP_HQD_PQ_CONTROL);
-		mqd->queue_state.cp_hqd_pq_control &=
-			~(CP_HQD_PQ_CONTROL__QUEUE_SIZE_MASK |
-					CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE_MASK);
-
-		mqd->queue_state.cp_hqd_pq_control |=
-			order_base_2(ring->ring_size / 8);
-		mqd->queue_state.cp_hqd_pq_control |=
-			(order_base_2(AMDGPU_GPU_PAGE_SIZE/8) << 8);
+	/* enable doorbell? */
+	mqd->queue_state.cp_hqd_pq_doorbell_control =
+		RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
+	if (ring->use_doorbell)
+		mqd->queue_state.cp_hqd_pq_doorbell_control |= CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
+	else
+		mqd->queue_state.cp_hqd_pq_doorbell_control &= ~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
+
+	/* set the pointer to the MQD */
+	mqd->queue_state.cp_mqd_base_addr = mqd_gpu_addr & 0xfffffffc;
+	mqd->queue_state.cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
+
+	/* set MQD vmid to 0 */
+	mqd->queue_state.cp_mqd_control = RREG32(mmCP_MQD_CONTROL);
+	mqd->queue_state.cp_mqd_control &= ~CP_MQD_CONTROL__VMID_MASK;
+
+	/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
+	hqd_gpu_addr = ring->gpu_addr >> 8;
+	mqd->queue_state.cp_hqd_pq_base = hqd_gpu_addr;
+	mqd->queue_state.cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);
+
+	/* set up the HQD, this is similar to CP_RB0_CNTL */
+	mqd->queue_state.cp_hqd_pq_control = RREG32(mmCP_HQD_PQ_CONTROL);
+	mqd->queue_state.cp_hqd_pq_control &=
+		~(CP_HQD_PQ_CONTROL__QUEUE_SIZE_MASK |
+				CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE_MASK);
+
+	mqd->queue_state.cp_hqd_pq_control |=
+		order_base_2(ring->ring_size / 8);
+	mqd->queue_state.cp_hqd_pq_control |=
+		(order_base_2(AMDGPU_GPU_PAGE_SIZE/8) << 8);
 #ifdef __BIG_ENDIAN
-		mqd->queue_state.cp_hqd_pq_control |=
-			2 << CP_HQD_PQ_CONTROL__ENDIAN_SWAP__SHIFT;
+	mqd->queue_state.cp_hqd_pq_control |=
+		2 << CP_HQD_PQ_CONTROL__ENDIAN_SWAP__SHIFT;
 #endif
-		mqd->queue_state.cp_hqd_pq_control &=
-			~(CP_HQD_PQ_CONTROL__UNORD_DISPATCH_MASK |
+	mqd->queue_state.cp_hqd_pq_control &=
+		~(CP_HQD_PQ_CONTROL__UNORD_DISPATCH_MASK |
 				CP_HQD_PQ_CONTROL__ROQ_PQ_IB_FLIP_MASK |
 				CP_HQD_PQ_CONTROL__PQ_VOLATILE_MASK);
-		mqd->queue_state.cp_hqd_pq_control |=
-			CP_HQD_PQ_CONTROL__PRIV_STATE_MASK |
-			CP_HQD_PQ_CONTROL__KMD_QUEUE_MASK; /* assuming kernel queue control */
-		WREG32(mmCP_HQD_PQ_CONTROL, mqd->queue_state.cp_hqd_pq_control);
-
-		/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
-		wb_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
-		mqd->queue_state.cp_hqd_pq_wptr_poll_addr = wb_gpu_addr & 0xfffffffc;
-		mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;
-		WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->queue_state.cp_hqd_pq_wptr_poll_addr);
-		WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI,
-		       mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi);
-
-		/* set the wb address wether it's enabled or not */
-		wb_gpu_addr = adev->wb.gpu_addr + (ring->rptr_offs * 4);
-		mqd->queue_state.cp_hqd_pq_rptr_report_addr = wb_gpu_addr & 0xfffffffc;
-		mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi =
-			upper_32_bits(wb_gpu_addr) & 0xffff;
-		WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR,
-		       mqd->queue_state.cp_hqd_pq_rptr_report_addr);
-		WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
-		       mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi);
-
-		/* enable the doorbell if requested */
-		if (use_doorbell) {
-			mqd->queue_state.cp_hqd_pq_doorbell_control =
-				RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
-			mqd->queue_state.cp_hqd_pq_doorbell_control &=
-				~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET_MASK;
-			mqd->queue_state.cp_hqd_pq_doorbell_control |=
-				(ring->doorbell_index <<
-				 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT);
-			mqd->queue_state.cp_hqd_pq_doorbell_control |=
-				CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
-			mqd->queue_state.cp_hqd_pq_doorbell_control &=
-				~(CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_SOURCE_MASK |
-				CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_HIT_MASK);
+	mqd->queue_state.cp_hqd_pq_control |=
+		CP_HQD_PQ_CONTROL__PRIV_STATE_MASK |
+		CP_HQD_PQ_CONTROL__KMD_QUEUE_MASK; /* assuming kernel queue control */
 
-		} else {
-			mqd->queue_state.cp_hqd_pq_doorbell_control = 0;
+	/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
+	wb_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
+	mqd->queue_state.cp_hqd_pq_wptr_poll_addr = wb_gpu_addr & 0xfffffffc;
+	mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;
+
+	/* set the wb address wether it's enabled or not */
+	wb_gpu_addr = adev->wb.gpu_addr + (ring->rptr_offs * 4);
+	mqd->queue_state.cp_hqd_pq_rptr_report_addr = wb_gpu_addr & 0xfffffffc;
+	mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi =
+		upper_32_bits(wb_gpu_addr) & 0xffff;
+
+	/* enable the doorbell if requested */
+	if (ring->use_doorbell) {
+		mqd->queue_state.cp_hqd_pq_doorbell_control =
+			RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
+		mqd->queue_state.cp_hqd_pq_doorbell_control &=
+			~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET_MASK;
+		mqd->queue_state.cp_hqd_pq_doorbell_control |=
+			(ring->doorbell_index <<
+			 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT);
+		mqd->queue_state.cp_hqd_pq_doorbell_control |=
+			CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
+		mqd->queue_state.cp_hqd_pq_doorbell_control &=
+			~(CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_SOURCE_MASK |
+					CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_HIT_MASK);
+
+	} else {
+		mqd->queue_state.cp_hqd_pq_doorbell_control = 0;
+	}
+
+	/* read and write pointers, similar to CP_RB0_WPTR/_RPTR */
+	ring->wptr = 0;
+	mqd->queue_state.cp_hqd_pq_wptr = ring->wptr;
+	mqd->queue_state.cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+
+	/* set the vmid for the queue */
+	mqd->queue_state.cp_hqd_vmid = 0;
+
+	/* activate the queue */
+	mqd->queue_state.cp_hqd_active = 1;
+}
+
+static int gfx_v7_0_mqd_commit(struct amdgpu_device *adev,
+			       struct bonaire_mqd *mqd)
+{
+	u32 tmp;
+
+	/* disable wptr polling */
+	tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
+	tmp = REG_SET_FIELD(tmp, CP_PQ_WPTR_POLL_CNTL, EN, 0);
+	WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
+
+	/* program MQD field to HW */
+	WREG32(mmCP_MQD_BASE_ADDR, mqd->queue_state.cp_mqd_base_addr);
+	WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->queue_state.cp_mqd_base_addr_hi);
+	WREG32(mmCP_MQD_CONTROL, mqd->queue_state.cp_mqd_control);
+	WREG32(mmCP_HQD_PQ_BASE, mqd->queue_state.cp_hqd_pq_base);
+	WREG32(mmCP_HQD_PQ_BASE_HI, mqd->queue_state.cp_hqd_pq_base_hi);
+	WREG32(mmCP_HQD_PQ_CONTROL, mqd->queue_state.cp_hqd_pq_control);
+	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->queue_state.cp_hqd_pq_wptr_poll_addr);
+	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi);
+	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, mqd->queue_state.cp_hqd_pq_rptr_report_addr);
+	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI, mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi);
+	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->queue_state.cp_hqd_pq_doorbell_control);
+	WREG32(mmCP_HQD_PQ_WPTR, mqd->queue_state.cp_hqd_pq_wptr);
+	WREG32(mmCP_HQD_VMID, mqd->queue_state.cp_hqd_vmid);
+
+	/* activate the HQD */
+	WREG32(mmCP_HQD_ACTIVE, mqd->queue_state.cp_hqd_active);
+
+	return 0;
+}
+
+static int gfx_v7_0_compute_queue_init(struct amdgpu_device *adev, int ring_id)
+{
+	int r;
+	u64 mqd_gpu_addr;
+	struct bonaire_mqd *mqd;
+	struct amdgpu_ring *ring = &adev->gfx.compute_ring[ring_id];
+
+	if (ring->mqd_obj == NULL) {
+		r = amdgpu_bo_create(adev,
+				sizeof(struct bonaire_mqd),
+				PAGE_SIZE, true,
+				AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
+				&ring->mqd_obj);
+		if (r) {
+			dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
+			return r;
 		}
-		WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL,
-		       mqd->queue_state.cp_hqd_pq_doorbell_control);
+	}
+
+	r = amdgpu_bo_reserve(ring->mqd_obj, false);
+	if (unlikely(r != 0))
+		goto out;
+
+	r = amdgpu_bo_pin(ring->mqd_obj, AMDGPU_GEM_DOMAIN_GTT,
+			&mqd_gpu_addr);
+	if (r) {
+		dev_warn(adev->dev, "(%d) pin MQD bo failed\n", r);
+		goto out_unreserve;
+	}
+	r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&mqd);
+	if (r) {
+		dev_warn(adev->dev, "(%d) map MQD bo failed\n", r);
+		goto out_unreserve;
+	}
+
+	mutex_lock(&adev->srbm_mutex);
+	cik_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
 
-		/* read and write pointers, similar to CP_RB0_WPTR/_RPTR */
-		ring->wptr = 0;
-		mqd->queue_state.cp_hqd_pq_wptr = ring->wptr;
-		WREG32(mmCP_HQD_PQ_WPTR, mqd->queue_state.cp_hqd_pq_wptr);
-		mqd->queue_state.cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+	gfx_v7_0_mqd_init(adev, mqd, mqd_gpu_addr, ring);
+	gfx_v7_0_mqd_deactivate(adev);
+	gfx_v7_0_mqd_commit(adev, mqd);
 
-		/* set the vmid for the queue */
-		mqd->queue_state.cp_hqd_vmid = 0;
-		WREG32(mmCP_HQD_VMID, mqd->queue_state.cp_hqd_vmid);
+	cik_srbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
 
-		/* activate the queue */
-		mqd->queue_state.cp_hqd_active = 1;
-		WREG32(mmCP_HQD_ACTIVE, mqd->queue_state.cp_hqd_active);
+	amdgpu_bo_kunmap(ring->mqd_obj);
+out_unreserve:
+	amdgpu_bo_unreserve(ring->mqd_obj);
+out:
+	return 0;
+}
+
+/**
+ * gfx_v7_0_cp_compute_resume - setup the compute queue registers
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Program the compute queues and test them to make sure they
+ * are working.
+ * Returns 0 for success, error for failure.
+ */
+static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
+{
+	int r, i, j;
+	u32 tmp;
+	struct amdgpu_ring *ring;
 
-		cik_srbm_select(adev, 0, 0, 0, 0);
-		mutex_unlock(&adev->srbm_mutex);
+	/* fix up chicken bits */
+	tmp = RREG32(mmCP_CPF_DEBUG);
+	tmp |= (1 << 23);
+	WREG32(mmCP_CPF_DEBUG, tmp);
 
-		amdgpu_bo_kunmap(ring->mqd_obj);
-		amdgpu_bo_unreserve(ring->mqd_obj);
+	/* init the pipes */
+	for (i = 0; i < adev->gfx.mec.num_mec; i++)
+		for (j = 0; j < adev->gfx.mec.num_pipe; j++)
+			gfx_v7_0_compute_pipe_init(adev, i, j);
 
-		ring->ready = true;
+	/* init the queues */
+	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+		r = gfx_v7_0_compute_queue_init(adev, i);
+		if (r) {
+			gfx_v7_0_cp_compute_fini(adev);
+			return r;
+		}
 	}
 
 	gfx_v7_0_cp_compute_enable(adev, true);
 
 	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
 		ring = &adev->gfx.compute_ring[i];
-
+		ring->ready = true;
 		r = amdgpu_ring_test_ring(ring);
 		if (r)
 			ring->ready = false;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 67afc90..1c8589a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -53,6 +53,8 @@
 
 #define GFX8_NUM_GFX_RINGS     1
 #define GFX8_NUM_COMPUTE_RINGS 8
+#define GFX8_MEC_HPD_SIZE 2048
+
 
 #define TOPAZ_GB_ADDR_CONFIG_GOLDEN 0x22010001
 #define CARRIZO_GB_ADDR_CONFIG_GOLDEN 0x22010001
@@ -1416,7 +1418,7 @@ static void gfx_v8_0_kiq_free_ring(struct amdgpu_ring *ring,
 	irq->data = NULL;
 }
 
-#define MEC_HPD_SIZE 2048
+#define GFX8_MEC_HPD_SIZE 2048
 
 static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 {
@@ -1433,7 +1435,7 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
 		r = amdgpu_bo_create(adev,
-				     adev->gfx.mec.num_queue * MEC_HPD_SIZE,
+				     adev->gfx.mec.num_queue * GFX8_MEC_HPD_SIZE,
 				     PAGE_SIZE, true,
 				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
 				     &adev->gfx.mec.hpd_eop_obj);
@@ -1462,7 +1464,7 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 		return r;
 	}
 
-	memset(hpd, 0, adev->gfx.mec.num_queue * MEC_HPD_SIZE);
+	memset(hpd, 0, adev->gfx.mec.num_queue * GFX8_MEC_HPD_SIZE);
 
 	amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
 	amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
@@ -1484,7 +1486,7 @@ static int gfx_v8_0_kiq_init(struct amdgpu_device *adev)
 	u32 *hpd;
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 
-	r = amdgpu_bo_create_kernel(adev, MEC_HPD_SIZE, PAGE_SIZE,
+	r = amdgpu_bo_create_kernel(adev, GFX8_MEC_HPD_SIZE, PAGE_SIZE,
 				    AMDGPU_GEM_DOMAIN_GTT, &kiq->eop_obj,
 				    &kiq->eop_gpu_addr, (void **)&hpd);
 	if (r) {
@@ -1492,7 +1494,7 @@ static int gfx_v8_0_kiq_init(struct amdgpu_device *adev)
 		return r;
 	}
 
-	memset(hpd, 0, MEC_HPD_SIZE);
+	memset(hpd, 0, GFX8_MEC_HPD_SIZE);
 
 	amdgpu_bo_kunmap(kiq->eop_obj);
 
@@ -4665,6 +4667,9 @@ static int gfx_v8_0_mqd_init(struct amdgpu_device *adev,
 	uint64_t hqd_gpu_addr, wb_gpu_addr, eop_base_addr;
 	uint32_t tmp;
 
+	/* init the mqd struct */
+	memset(mqd, 0, sizeof(struct vi_mqd));
+
 	mqd->header = 0xC0310800;
 	mqd->compute_pipelinestat_enable = 0x00000001;
 	mqd->compute_static_thread_mgmt_se0 = 0xffffffff;
@@ -4680,7 +4685,7 @@ static int gfx_v8_0_mqd_init(struct amdgpu_device *adev,
 	/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
 	tmp = RREG32(mmCP_HQD_EOP_CONTROL);
 	tmp = REG_SET_FIELD(tmp, CP_HQD_EOP_CONTROL, EOP_SIZE,
-			(order_base_2(MEC_HPD_SIZE / 4) - 1));
+			(order_base_2(GFX8_MEC_HPD_SIZE / 4) - 1));
 
 	mqd->cp_hqd_eop_control = tmp;
 
@@ -4696,11 +4701,6 @@ static int gfx_v8_0_mqd_init(struct amdgpu_device *adev,
 
 	mqd->cp_hqd_pq_doorbell_control = tmp;
 
-	/* disable the queue if it's active */
-	mqd->cp_hqd_dequeue_request = 0;
-	mqd->cp_hqd_pq_rptr = 0;
-	mqd->cp_hqd_pq_wptr = 0;
-
 	/* set the pointer to the MQD */
 	mqd->cp_mqd_base_addr_lo = mqd_gpu_addr & 0xfffffffc;
 	mqd->cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
@@ -4776,12 +4776,54 @@ static int gfx_v8_0_mqd_init(struct amdgpu_device *adev,
 	return 0;
 }
 
-static int gfx_v8_0_kiq_init_register(struct amdgpu_device *adev,
-				      struct vi_mqd *mqd,
-				      struct amdgpu_ring *ring)
+static int gfx_v8_0_mqd_deactivate(struct amdgpu_device *adev)
+{
+	int i;
+
+	/* disable the queue if it's active */
+	if (RREG32(mmCP_HQD_ACTIVE) & 1) {
+		WREG32(mmCP_HQD_DEQUEUE_REQUEST, 1);
+		for (i = 0; i < adev->usec_timeout; i++) {
+			if (!(RREG32(mmCP_HQD_ACTIVE) & 1))
+				break;
+			udelay(1);
+		}
+
+		if (i == adev->usec_timeout)
+			return -ETIMEDOUT;
+
+		WREG32(mmCP_HQD_DEQUEUE_REQUEST, 0);
+		WREG32(mmCP_HQD_PQ_RPTR, 0);
+		WREG32(mmCP_HQD_PQ_WPTR, 0);
+	}
+
+	return 0;
+}
+
+static void gfx_v8_0_enable_doorbell(struct amdgpu_device *adev, bool enable)
+{
+	uint32_t tmp;
+
+	if (!enable)
+		return;
+
+	if ((adev->asic_type == CHIP_CARRIZO) ||
+			(adev->asic_type == CHIP_FIJI) ||
+			(adev->asic_type == CHIP_STONEY) ||
+			(adev->asic_type == CHIP_POLARIS11) ||
+			(adev->asic_type == CHIP_POLARIS10)) {
+		WREG32(mmCP_MEC_DOORBELL_RANGE_LOWER, AMDGPU_DOORBELL_KIQ << 2);
+		WREG32(mmCP_MEC_DOORBELL_RANGE_UPPER, AMDGPU_DOORBELL_MEC_RING7 << 2);
+	}
+
+	tmp = RREG32(mmCP_PQ_STATUS);
+	tmp = REG_SET_FIELD(tmp, CP_PQ_STATUS, DOORBELL_ENABLE, 1);
+	WREG32(mmCP_PQ_STATUS, tmp);
+}
+
+static int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
 {
 	uint32_t tmp;
-	int j;
 
 	/* disable wptr polling */
 	tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
@@ -4797,18 +4839,10 @@ static int gfx_v8_0_kiq_init_register(struct amdgpu_device *adev,
 	/* enable doorbell? */
 	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
 
-	/* disable the queue if it's active */
-	if (RREG32(mmCP_HQD_ACTIVE) & 1) {
-		WREG32(mmCP_HQD_DEQUEUE_REQUEST, 1);
-		for (j = 0; j < adev->usec_timeout; j++) {
-			if (!(RREG32(mmCP_HQD_ACTIVE) & 1))
-				break;
-			udelay(1);
-		}
-		WREG32(mmCP_HQD_DEQUEUE_REQUEST, mqd->cp_hqd_dequeue_request);
-		WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
-		WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-	}
+	/* set pq read/write pointers */
+	WREG32(mmCP_HQD_DEQUEUE_REQUEST, mqd->cp_hqd_dequeue_request);
+	WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
+	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
 
 	/* set the pointer to the MQD */
 	WREG32(mmCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
@@ -4835,16 +4869,6 @@ static int gfx_v8_0_kiq_init_register(struct amdgpu_device *adev,
 	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->cp_hqd_pq_wptr_poll_addr_hi);
 
 	/* enable the doorbell if requested */
-	if (ring->use_doorbell) {
-		if ((adev->asic_type == CHIP_CARRIZO) ||
-				(adev->asic_type == CHIP_FIJI) ||
-				(adev->asic_type == CHIP_STONEY)) {
-			WREG32(mmCP_MEC_DOORBELL_RANGE_LOWER,
-						AMDGPU_DOORBELL_KIQ << 2);
-			WREG32(mmCP_MEC_DOORBELL_RANGE_UPPER,
-						AMDGPU_DOORBELL_MEC_RING7 << 2);
-		}
-	}
 	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
 
 	/* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
@@ -4858,16 +4882,10 @@ static int gfx_v8_0_kiq_init_register(struct amdgpu_device *adev,
 	/* activate the queue */
 	WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
 
-	if (ring->use_doorbell) {
-		tmp = RREG32(mmCP_PQ_STATUS);
-		tmp = REG_SET_FIELD(tmp, CP_PQ_STATUS, DOORBELL_ENABLE, 1);
-		WREG32(mmCP_PQ_STATUS, tmp);
-	}
-
 	return 0;
 }
 
-static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring,
+static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring *ring,
 				   struct vi_mqd *mqd,
 				   u64 mqd_gpu_addr)
 {
@@ -4884,15 +4902,18 @@ static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring,
 		gfx_v8_0_kiq_setting(&kiq->ring);
 	} else
 		eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr +
-					ring->queue * MEC_HPD_SIZE;
+					ring->queue * GFX8_MEC_HPD_SIZE;
 
 	mutex_lock(&adev->srbm_mutex);
 	vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
 
 	gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
-	if (is_kiq)
-		gfx_v8_0_kiq_init_register(adev, mqd, ring);
+	if (is_kiq) {
+		gfx_v8_0_mqd_deactivate(adev);
+		gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
+		gfx_v8_0_mqd_commit(adev, mqd);
+	}
 
 	vi_srbm_select(adev, 0, 0, 0, 0);
 	mutex_unlock(&adev->srbm_mutex);
@@ -4929,9 +4950,10 @@ static int gfx_v8_0_kiq_setup_queue(struct amdgpu_device *adev,
 	u32 *buf;
 	int r = 0;
 
-	r = amdgpu_bo_create_kernel(adev, sizeof(struct vi_mqd), PAGE_SIZE,
-				    AMDGPU_GEM_DOMAIN_GTT, &ring->mqd_obj,
-				    &mqd_gpu_addr, (void **)&buf);
+	r = amdgpu_bo_create_kernel(adev, sizeof(struct vi_mqd),
+			PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
+			&ring->mqd_obj, &mqd_gpu_addr,
+			(void **)&buf);
 	if (r) {
 		dev_warn(adev->dev, "failed to create ring mqd ob (%d)", r);
 		return r;
@@ -4941,7 +4963,7 @@ static int gfx_v8_0_kiq_setup_queue(struct amdgpu_device *adev,
 	memset(buf, 0, sizeof(struct vi_mqd));
 	mqd = (struct vi_mqd *)buf;
 
-	r = gfx_v8_0_kiq_init_queue(ring, mqd, mqd_gpu_addr);
+	r = gfx_v8_0_kiq_queue_init(ring, mqd, mqd_gpu_addr);
 	if (r)
 		return r;
 
@@ -4987,246 +5009,99 @@ static int gfx_v8_0_kiq_resume(struct amdgpu_device *adev)
 	return 0;
 }
 
-static int gfx_v8_0_cp_compute_resume(struct amdgpu_device *adev)
+static int gfx_v8_0_compute_queue_init(struct amdgpu_device *adev,
+				       int ring_id)
 {
-	int r, i, j;
-	u32 tmp;
-	bool use_doorbell = true;
-	u64 hqd_gpu_addr;
-	u64 mqd_gpu_addr;
+	int r;
 	u64 eop_gpu_addr;
-	u64 wb_gpu_addr;
-	u32 *buf;
+	u64 mqd_gpu_addr;
 	struct vi_mqd *mqd;
+	struct amdgpu_ring *ring = &adev->gfx.compute_ring[ring_id];
 
-	/* init the queues.  */
-	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
-		struct amdgpu_ring *ring = &adev->gfx.compute_ring[i];
-
-		if (ring->mqd_obj == NULL) {
-			r = amdgpu_bo_create(adev,
-					     sizeof(struct vi_mqd),
-					     PAGE_SIZE, true,
-					     AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
-					     NULL, &ring->mqd_obj);
-			if (r) {
-				dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
-				return r;
-			}
-		}
-
-		r = amdgpu_bo_reserve(ring->mqd_obj, false);
-		if (unlikely(r != 0)) {
-			gfx_v8_0_cp_compute_fini(adev);
-			return r;
-		}
-		r = amdgpu_bo_pin(ring->mqd_obj, AMDGPU_GEM_DOMAIN_GTT,
-				  &mqd_gpu_addr);
-		if (r) {
-			dev_warn(adev->dev, "(%d) pin MQD bo failed\n", r);
-			gfx_v8_0_cp_compute_fini(adev);
-			return r;
-		}
-		r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&buf);
+	if (ring->mqd_obj == NULL) {
+		r = amdgpu_bo_create(adev,
+				sizeof(struct vi_mqd),
+				PAGE_SIZE, true,
+				AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
+				NULL, &ring->mqd_obj);
 		if (r) {
-			dev_warn(adev->dev, "(%d) map MQD bo failed\n", r);
-			gfx_v8_0_cp_compute_fini(adev);
+			dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
 			return r;
 		}
+	}
 
-		/* init the mqd struct */
-		memset(buf, 0, sizeof(struct vi_mqd));
-
-		mqd = (struct vi_mqd *)buf;
-		mqd->header = 0xC0310800;
-		mqd->compute_pipelinestat_enable = 0x00000001;
-		mqd->compute_static_thread_mgmt_se0 = 0xffffffff;
-		mqd->compute_static_thread_mgmt_se1 = 0xffffffff;
-		mqd->compute_static_thread_mgmt_se2 = 0xffffffff;
-		mqd->compute_static_thread_mgmt_se3 = 0xffffffff;
-		mqd->compute_misc_reserved = 0x00000003;
-
-		mutex_lock(&adev->srbm_mutex);
-		vi_srbm_select(adev, ring->me,
-			       ring->pipe,
-			       ring->queue, 0);
-
-		eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr + (i * MEC_HPD_SIZE);
-		eop_gpu_addr >>= 8;
-
-		/* write the EOP addr */
-		WREG32(mmCP_HQD_EOP_BASE_ADDR, eop_gpu_addr);
-		WREG32(mmCP_HQD_EOP_BASE_ADDR_HI, upper_32_bits(eop_gpu_addr));
-
-		/* set the VMID assigned */
-		WREG32(mmCP_HQD_VMID, 0);
-
-		/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
-		tmp = RREG32(mmCP_HQD_EOP_CONTROL);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_EOP_CONTROL, EOP_SIZE,
-				    (order_base_2(MEC_HPD_SIZE / 4) - 1));
-		WREG32(mmCP_HQD_EOP_CONTROL, tmp);
-
-		/* disable wptr polling */
-		tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
-		tmp = REG_SET_FIELD(tmp, CP_PQ_WPTR_POLL_CNTL, EN, 0);
-		WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
-
-		mqd->cp_hqd_eop_base_addr_lo =
-			RREG32(mmCP_HQD_EOP_BASE_ADDR);
-		mqd->cp_hqd_eop_base_addr_hi =
-			RREG32(mmCP_HQD_EOP_BASE_ADDR_HI);
-
-		/* enable doorbell? */
-		tmp = RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
-		if (use_doorbell) {
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
-		} else {
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 0);
-		}
-		WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, tmp);
-		mqd->cp_hqd_pq_doorbell_control = tmp;
-
-		/* disable the queue if it's active */
-		mqd->cp_hqd_dequeue_request = 0;
-		mqd->cp_hqd_pq_rptr = 0;
-		mqd->cp_hqd_pq_wptr= 0;
-		if (RREG32(mmCP_HQD_ACTIVE) & 1) {
-			WREG32(mmCP_HQD_DEQUEUE_REQUEST, 1);
-			for (j = 0; j < adev->usec_timeout; j++) {
-				if (!(RREG32(mmCP_HQD_ACTIVE) & 1))
-					break;
-				udelay(1);
-			}
-			WREG32(mmCP_HQD_DEQUEUE_REQUEST, mqd->cp_hqd_dequeue_request);
-			WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
-			WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-		}
+	r = amdgpu_bo_reserve(ring->mqd_obj, false);
+	if (unlikely(r != 0))
+		goto out;
 
-		/* set the pointer to the MQD */
-		mqd->cp_mqd_base_addr_lo = mqd_gpu_addr & 0xfffffffc;
-		mqd->cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
-		WREG32(mmCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
-		WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->cp_mqd_base_addr_hi);
-
-		/* set MQD vmid to 0 */
-		tmp = RREG32(mmCP_MQD_CONTROL);
-		tmp = REG_SET_FIELD(tmp, CP_MQD_CONTROL, VMID, 0);
-		WREG32(mmCP_MQD_CONTROL, tmp);
-		mqd->cp_mqd_control = tmp;
-
-		/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
-		hqd_gpu_addr = ring->gpu_addr >> 8;
-		mqd->cp_hqd_pq_base_lo = hqd_gpu_addr;
-		mqd->cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);
-		WREG32(mmCP_HQD_PQ_BASE, mqd->cp_hqd_pq_base_lo);
-		WREG32(mmCP_HQD_PQ_BASE_HI, mqd->cp_hqd_pq_base_hi);
-
-		/* set up the HQD, this is similar to CP_RB0_CNTL */
-		tmp = RREG32(mmCP_HQD_PQ_CONTROL);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, QUEUE_SIZE,
-				    (order_base_2(ring->ring_size / 4) - 1));
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, RPTR_BLOCK_SIZE,
-			       ((order_base_2(AMDGPU_GPU_PAGE_SIZE / 4) - 1) << 8));
-#ifdef __BIG_ENDIAN
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, ENDIAN_SWAP, 1);
-#endif
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, UNORD_DISPATCH, 0);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, ROQ_PQ_IB_FLIP, 0);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, PRIV_STATE, 1);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, KMD_QUEUE, 1);
-		WREG32(mmCP_HQD_PQ_CONTROL, tmp);
-		mqd->cp_hqd_pq_control = tmp;
-
-		/* set the wb address wether it's enabled or not */
-		wb_gpu_addr = adev->wb.gpu_addr + (ring->rptr_offs * 4);
-		mqd->cp_hqd_pq_rptr_report_addr_lo = wb_gpu_addr & 0xfffffffc;
-		mqd->cp_hqd_pq_rptr_report_addr_hi =
-			upper_32_bits(wb_gpu_addr) & 0xffff;
-		WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR,
-		       mqd->cp_hqd_pq_rptr_report_addr_lo);
-		WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
-		       mqd->cp_hqd_pq_rptr_report_addr_hi);
-
-		/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
-		wb_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
-		mqd->cp_hqd_pq_wptr_poll_addr_lo = wb_gpu_addr & 0xfffffffc;
-		mqd->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;
-		WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->cp_hqd_pq_wptr_poll_addr_lo);
-		WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI,
-		       mqd->cp_hqd_pq_wptr_poll_addr_hi);
-
-		/* enable the doorbell if requested */
-		if (use_doorbell) {
-			if ((adev->asic_type == CHIP_CARRIZO) ||
-			    (adev->asic_type == CHIP_FIJI) ||
-			    (adev->asic_type == CHIP_STONEY) ||
-			    (adev->asic_type == CHIP_POLARIS11) ||
-			    (adev->asic_type == CHIP_POLARIS10) ||
-			    (adev->asic_type == CHIP_POLARIS12)) {
-				WREG32(mmCP_MEC_DOORBELL_RANGE_LOWER,
-				       AMDGPU_DOORBELL_KIQ << 2);
-				WREG32(mmCP_MEC_DOORBELL_RANGE_UPPER,
-				       AMDGPU_DOORBELL_MEC_RING7 << 2);
-			}
-			tmp = RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
-					    DOORBELL_OFFSET, ring->doorbell_index);
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_SOURCE, 0);
-			tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_HIT, 0);
-			mqd->cp_hqd_pq_doorbell_control = tmp;
+	r = amdgpu_bo_pin(ring->mqd_obj, AMDGPU_GEM_DOMAIN_GTT,
+			&mqd_gpu_addr);
+	if (r) {
+		dev_warn(adev->dev, "(%d) pin MQD bo failed\n", r);
+		goto out_unreserve;
+	}
+	r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&mqd);
+	if (r) {
+		dev_warn(adev->dev, "(%d) map MQD bo failed\n", r);
+		goto out_unreserve;
+	}
 
-		} else {
-			mqd->cp_hqd_pq_doorbell_control = 0;
-		}
-		WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL,
-		       mqd->cp_hqd_pq_doorbell_control);
-
-		/* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
-		ring->wptr = 0;
-		mqd->cp_hqd_pq_wptr = ring->wptr;
-		WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-		mqd->cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
-
-		/* set the vmid for the queue */
-		mqd->cp_hqd_vmid = 0;
-		WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
-
-		tmp = RREG32(mmCP_HQD_PERSISTENT_STATE);
-		tmp = REG_SET_FIELD(tmp, CP_HQD_PERSISTENT_STATE, PRELOAD_SIZE, 0x53);
-		WREG32(mmCP_HQD_PERSISTENT_STATE, tmp);
-		mqd->cp_hqd_persistent_state = tmp;
-		if (adev->asic_type == CHIP_STONEY ||
-			adev->asic_type == CHIP_POLARIS11 ||
-			adev->asic_type == CHIP_POLARIS10 ||
-			adev->asic_type == CHIP_POLARIS12) {
-			tmp = RREG32(mmCP_ME1_PIPE3_INT_CNTL);
-			tmp = REG_SET_FIELD(tmp, CP_ME1_PIPE3_INT_CNTL, GENERIC2_INT_ENABLE, 1);
-			WREG32(mmCP_ME1_PIPE3_INT_CNTL, tmp);
-		}
+	eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr + (ring_id * GFX8_MEC_HPD_SIZE);
+	eop_gpu_addr >>= 8;
+
+	/* init the mqd struct */
+	memset(mqd, 0, sizeof(struct vi_mqd));
+
+	mutex_lock(&adev->srbm_mutex);
+	vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
+
+	gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
-		/* activate the queue */
-		mqd->cp_hqd_active = 1;
-		WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
+	gfx_v8_0_mqd_deactivate(adev);
+	gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
+	gfx_v8_0_mqd_commit(adev, mqd);
 
-		vi_srbm_select(adev, 0, 0, 0, 0);
-		mutex_unlock(&adev->srbm_mutex);
+	vi_srbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
+
+	amdgpu_bo_kunmap(ring->mqd_obj);
+out_unreserve:
+	amdgpu_bo_unreserve(ring->mqd_obj);
+out:
+	return r;
+}
 
-		amdgpu_bo_kunmap(ring->mqd_obj);
-		amdgpu_bo_unreserve(ring->mqd_obj);
+static int gfx_v8_0_cp_compute_resume(struct amdgpu_device *adev)
+{
+	int r, i;
+	u32 tmp;
+	struct amdgpu_ring *ring;
+
+	/* Stating with gfxv8, all the pipe specific state was removed
+	 * The fields have been moved to be per-HQD now. */
+
+	/* init the queues */
+	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+		r = gfx_v8_0_compute_queue_init(adev, i);
+		if (r) {
+			gfx_v8_0_cp_compute_fini(adev);
+			return r;
+		}
 	}
 
-	if (use_doorbell) {
-		tmp = RREG32(mmCP_PQ_STATUS);
-		tmp = REG_SET_FIELD(tmp, CP_PQ_STATUS, DOORBELL_ENABLE, 1);
-		WREG32(mmCP_PQ_STATUS, tmp);
+	if (adev->asic_type == CHIP_STONEY ||
+	    adev->asic_type == CHIP_POLARIS11 ||
+	    adev->asic_type == CHIP_POLARIS10 ||
+	    adev->asic_type == CHIP_POLARIS12) {
+		tmp = RREG32(mmCP_ME1_PIPE3_INT_CNTL);
+		tmp = REG_SET_FIELD(tmp, CP_ME1_PIPE3_INT_CNTL, GENERIC2_INT_ENABLE, 1);
+		WREG32(mmCP_ME1_PIPE3_INT_CNTL, tmp);
 	}
 
 	gfx_v8_0_cp_compute_enable(adev, true);
 
 	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
-		struct amdgpu_ring *ring = &adev->gfx.compute_ring[i];
+		ring = &adev->gfx.compute_ring[i];
 
 		ring->ready = true;
 		r = amdgpu_ring_test_ring(ring);
-- 
2.9.3

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[PATCH 02/22] drm/amdgpu: doorbell registers need only be set once v2

[Andres Rodriguez]

The CP_MEC_DOORBELL_RANGE_* and CP_PQ_STATUS.DOORBELL_ENABLE registers
are not HQD specific.

They only need to be set once if at least 1 pipe requested doorbell
support.

v2: move doorbell_enable to amdgpu_gfx instead of amdgpu_device

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h   | 3 +++
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c1b9135..b577ec1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -899,6 +899,9 @@ struct amdgpu_gfx {
 	/* reset mask */
 	uint32_t                        grbm_soft_reset;
 	uint32_t                        srbm_soft_reset;
+
+	/* doorbell */
+	bool				doorbell_enabled;
 };
 
 int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1c8589a..044449a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4804,7 +4804,7 @@ static void gfx_v8_0_enable_doorbell(struct amdgpu_device *adev, bool enable)
 {
 	uint32_t tmp;
 
-	if (!enable)
+	if (!enable || adev->gfx.doorbell_enabled)
 		return;
 
 	if ((adev->asic_type == CHIP_CARRIZO) ||
@@ -4819,6 +4819,8 @@ static void gfx_v8_0_enable_doorbell(struct amdgpu_device *adev, bool enable)
 	tmp = RREG32(mmCP_PQ_STATUS);
 	tmp = REG_SET_FIELD(tmp, CP_PQ_STATUS, DOORBELL_ENABLE, 1);
 	WREG32(mmCP_PQ_STATUS, tmp);
+
+	adev->gfx.doorbell_enabled = true;
 }
 
 static int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
@@ -5116,6 +5118,8 @@ static int gfx_v8_0_cp_resume(struct amdgpu_device *adev)
 {
 	int r;
 
+	adev->gfx.doorbell_enabled = false;
+
 	if (!(adev->flags & AMD_IS_APU))
 		gfx_v8_0_enable_gui_idle_interrupt(adev, false);
 
-- 
2.9.3

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[PATCH 03/22] drm/amdgpu: detect timeout error when deactivating hqd

[Andres Rodriguez]

Handle HQD deactivation timeouts instead of ignoring them.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 044449a..af4b505 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4891,6 +4891,7 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring *ring,
 				   struct vi_mqd *mqd,
 				   u64 mqd_gpu_addr)
 {
+	int r = 0;
 	struct amdgpu_device *adev = ring->adev;
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 	uint64_t eop_gpu_addr;
@@ -4912,7 +4913,12 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring *ring,
 	gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
 	if (is_kiq) {
-		gfx_v8_0_mqd_deactivate(adev);
+		r = gfx_v8_0_mqd_deactivate(adev);
+		if (r) {
+			dev_err(adev->dev, "failed to deactivate ring %s\n", ring->name);
+			goto out_unlock;
+		}
+
 		gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
 		gfx_v8_0_mqd_commit(adev, mqd);
 	}
@@ -4926,6 +4932,12 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring *ring,
 		gfx_v8_0_map_queue_enable(&kiq->ring, ring);
 
 	return 0;
+
+out_unlock:
+	vi_srbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
+
+	return r;
 }
 
 static void gfx_v8_0_kiq_free_queue(struct amdgpu_device *adev)
@@ -5059,10 +5071,16 @@ static int gfx_v8_0_compute_queue_init(struct amdgpu_device *adev,
 
 	gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
-	gfx_v8_0_mqd_deactivate(adev);
+	r = gfx_v8_0_mqd_deactivate(adev);
+	if (r) {
+		dev_err(adev->dev, "failed to deactivate ring %s\n", ring->name);
+		goto out_unlock;
+	}
+
 	gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
 	gfx_v8_0_mqd_commit(adev, mqd);
 
+out_unlock:
 	vi_srbm_select(adev, 0, 0, 0, 0);
 	mutex_unlock(&adev->srbm_mutex);
 
-- 
2.9.3

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[PATCH 04/22] drm/amdgpu: remove duplicate definition of cik_mqd

[Andres Rodriguez]

The gfxv7 contains a slightly different version of cik_mqd called
bonaire_mqd. This can introduce subtle bugs if fixes are not applied in
both places.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 135 ++++++++++++++--------------------
 1 file changed, 54 insertions(+), 81 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 8e1e601..c606e0b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -27,6 +27,7 @@
 #include "amdgpu_gfx.h"
 #include "cikd.h"
 #include "cik.h"
+#include "cik_structs.h"
 #include "atom.h"
 #include "amdgpu_ucode.h"
 #include "clearstate_ci.h"
@@ -2895,34 +2896,6 @@ struct hqd_registers
 	u32 cp_mqd_control;
 };
 
-struct bonaire_mqd
-{
-	u32 header;
-	u32 dispatch_initiator;
-	u32 dimensions[3];
-	u32 start_idx[3];
-	u32 num_threads[3];
-	u32 pipeline_stat_enable;
-	u32 perf_counter_enable;
-	u32 pgm[2];
-	u32 tba[2];
-	u32 tma[2];
-	u32 pgm_rsrc[2];
-	u32 vmid;
-	u32 resource_limits;
-	u32 static_thread_mgmt01[2];
-	u32 tmp_ring_size;
-	u32 static_thread_mgmt23[2];
-	u32 restart[3];
-	u32 thread_trace_enable;
-	u32 reserved1;
-	u32 user_data[16];
-	u32 vgtcs_invoke_count[2];
-	struct hqd_registers queue_state;
-	u32 dequeue_cntr;
-	u32 interrupt_queue[64];
-};
-
 static void gfx_v7_0_compute_pipe_init(struct amdgpu_device *adev, int me, int pipe)
 {
 	u64 eop_gpu_addr;
@@ -2976,7 +2949,7 @@ static int gfx_v7_0_mqd_deactivate(struct amdgpu_device *adev)
 }
 
 static void gfx_v7_0_mqd_init(struct amdgpu_device *adev,
-			     struct bonaire_mqd *mqd,
+			     struct cik_mqd *mqd,
 			     uint64_t mqd_gpu_addr,
 			     struct amdgpu_ring *ring)
 {
@@ -2984,101 +2957,101 @@ static void gfx_v7_0_mqd_init(struct amdgpu_device *adev,
 	u64 wb_gpu_addr;
 
 	/* init the mqd struct */
-	memset(mqd, 0, sizeof(struct bonaire_mqd));
+	memset(mqd, 0, sizeof(struct cik_mqd));
 
 	mqd->header = 0xC0310800;
-	mqd->static_thread_mgmt01[0] = 0xffffffff;
-	mqd->static_thread_mgmt01[1] = 0xffffffff;
-	mqd->static_thread_mgmt23[0] = 0xffffffff;
-	mqd->static_thread_mgmt23[1] = 0xffffffff;
+	mqd->compute_static_thread_mgmt_se0 = 0xffffffff;
+	mqd->compute_static_thread_mgmt_se1 = 0xffffffff;
+	mqd->compute_static_thread_mgmt_se2 = 0xffffffff;
+	mqd->compute_static_thread_mgmt_se3 = 0xffffffff;
 
 	/* enable doorbell? */
-	mqd->queue_state.cp_hqd_pq_doorbell_control =
+	mqd->cp_hqd_pq_doorbell_control =
 		RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
 	if (ring->use_doorbell)
-		mqd->queue_state.cp_hqd_pq_doorbell_control |= CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
+		mqd->cp_hqd_pq_doorbell_control |= CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
 	else
-		mqd->queue_state.cp_hqd_pq_doorbell_control &= ~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
+		mqd->cp_hqd_pq_doorbell_control &= ~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
 
 	/* set the pointer to the MQD */
-	mqd->queue_state.cp_mqd_base_addr = mqd_gpu_addr & 0xfffffffc;
-	mqd->queue_state.cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
+	mqd->cp_mqd_base_addr_lo = mqd_gpu_addr & 0xfffffffc;
+	mqd->cp_mqd_base_addr_hi = upper_32_bits(mqd_gpu_addr);
 
 	/* set MQD vmid to 0 */
-	mqd->queue_state.cp_mqd_control = RREG32(mmCP_MQD_CONTROL);
-	mqd->queue_state.cp_mqd_control &= ~CP_MQD_CONTROL__VMID_MASK;
+	mqd->cp_mqd_control = RREG32(mmCP_MQD_CONTROL);
+	mqd->cp_mqd_control &= ~CP_MQD_CONTROL__VMID_MASK;
 
 	/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
 	hqd_gpu_addr = ring->gpu_addr >> 8;
-	mqd->queue_state.cp_hqd_pq_base = hqd_gpu_addr;
-	mqd->queue_state.cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);
+	mqd->cp_hqd_pq_base_lo = hqd_gpu_addr;
+	mqd->cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);
 
 	/* set up the HQD, this is similar to CP_RB0_CNTL */
-	mqd->queue_state.cp_hqd_pq_control = RREG32(mmCP_HQD_PQ_CONTROL);
-	mqd->queue_state.cp_hqd_pq_control &=
+	mqd->cp_hqd_pq_control = RREG32(mmCP_HQD_PQ_CONTROL);
+	mqd->cp_hqd_pq_control &=
 		~(CP_HQD_PQ_CONTROL__QUEUE_SIZE_MASK |
 				CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE_MASK);
 
-	mqd->queue_state.cp_hqd_pq_control |=
+	mqd->cp_hqd_pq_control |=
 		order_base_2(ring->ring_size / 8);
-	mqd->queue_state.cp_hqd_pq_control |=
+	mqd->cp_hqd_pq_control |=
 		(order_base_2(AMDGPU_GPU_PAGE_SIZE/8) << 8);
 #ifdef __BIG_ENDIAN
-	mqd->queue_state.cp_hqd_pq_control |=
+	mqd->cp_hqd_pq_control |=
 		2 << CP_HQD_PQ_CONTROL__ENDIAN_SWAP__SHIFT;
 #endif
-	mqd->queue_state.cp_hqd_pq_control &=
+	mqd->cp_hqd_pq_control &=
 		~(CP_HQD_PQ_CONTROL__UNORD_DISPATCH_MASK |
 				CP_HQD_PQ_CONTROL__ROQ_PQ_IB_FLIP_MASK |
 				CP_HQD_PQ_CONTROL__PQ_VOLATILE_MASK);
-	mqd->queue_state.cp_hqd_pq_control |=
+	mqd->cp_hqd_pq_control |=
 		CP_HQD_PQ_CONTROL__PRIV_STATE_MASK |
 		CP_HQD_PQ_CONTROL__KMD_QUEUE_MASK; /* assuming kernel queue control */
 
 	/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
 	wb_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
-	mqd->queue_state.cp_hqd_pq_wptr_poll_addr = wb_gpu_addr & 0xfffffffc;
-	mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;
+	mqd->cp_hqd_pq_wptr_poll_addr_lo = wb_gpu_addr & 0xfffffffc;
+	mqd->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;
 
 	/* set the wb address wether it's enabled or not */
 	wb_gpu_addr = adev->wb.gpu_addr + (ring->rptr_offs * 4);
-	mqd->queue_state.cp_hqd_pq_rptr_report_addr = wb_gpu_addr & 0xfffffffc;
-	mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi =
+	mqd->cp_hqd_pq_rptr_report_addr_lo = wb_gpu_addr & 0xfffffffc;
+	mqd->cp_hqd_pq_rptr_report_addr_hi =
 		upper_32_bits(wb_gpu_addr) & 0xffff;
 
 	/* enable the doorbell if requested */
 	if (ring->use_doorbell) {
-		mqd->queue_state.cp_hqd_pq_doorbell_control =
+		mqd->cp_hqd_pq_doorbell_control =
 			RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
-		mqd->queue_state.cp_hqd_pq_doorbell_control &=
+		mqd->cp_hqd_pq_doorbell_control &=
 			~CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET_MASK;
-		mqd->queue_state.cp_hqd_pq_doorbell_control |=
+		mqd->cp_hqd_pq_doorbell_control |=
 			(ring->doorbell_index <<
 			 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT);
-		mqd->queue_state.cp_hqd_pq_doorbell_control |=
+		mqd->cp_hqd_pq_doorbell_control |=
 			CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN_MASK;
-		mqd->queue_state.cp_hqd_pq_doorbell_control &=
+		mqd->cp_hqd_pq_doorbell_control &=
 			~(CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_SOURCE_MASK |
 					CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_HIT_MASK);
 
 	} else {
-		mqd->queue_state.cp_hqd_pq_doorbell_control = 0;
+		mqd->cp_hqd_pq_doorbell_control = 0;
 	}
 
 	/* read and write pointers, similar to CP_RB0_WPTR/_RPTR */
 	ring->wptr = 0;
-	mqd->queue_state.cp_hqd_pq_wptr = ring->wptr;
-	mqd->queue_state.cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+	mqd->cp_hqd_pq_wptr = ring->wptr;
+	mqd->cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
 
 	/* set the vmid for the queue */
-	mqd->queue_state.cp_hqd_vmid = 0;
+	mqd->cp_hqd_vmid = 0;
 
 	/* activate the queue */
-	mqd->queue_state.cp_hqd_active = 1;
+	mqd->cp_hqd_active = 1;
 }
 
 static int gfx_v7_0_mqd_commit(struct amdgpu_device *adev,
-			       struct bonaire_mqd *mqd)
+			       struct cik_mqd *mqd)
 {
 	u32 tmp;
 
@@ -3088,22 +3061,22 @@ static int gfx_v7_0_mqd_commit(struct amdgpu_device *adev,
 	WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
 
 	/* program MQD field to HW */
-	WREG32(mmCP_MQD_BASE_ADDR, mqd->queue_state.cp_mqd_base_addr);
-	WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->queue_state.cp_mqd_base_addr_hi);
-	WREG32(mmCP_MQD_CONTROL, mqd->queue_state.cp_mqd_control);
-	WREG32(mmCP_HQD_PQ_BASE, mqd->queue_state.cp_hqd_pq_base);
-	WREG32(mmCP_HQD_PQ_BASE_HI, mqd->queue_state.cp_hqd_pq_base_hi);
-	WREG32(mmCP_HQD_PQ_CONTROL, mqd->queue_state.cp_hqd_pq_control);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->queue_state.cp_hqd_pq_wptr_poll_addr);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->queue_state.cp_hqd_pq_wptr_poll_addr_hi);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, mqd->queue_state.cp_hqd_pq_rptr_report_addr);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI, mqd->queue_state.cp_hqd_pq_rptr_report_addr_hi);
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->queue_state.cp_hqd_pq_doorbell_control);
-	WREG32(mmCP_HQD_PQ_WPTR, mqd->queue_state.cp_hqd_pq_wptr);
-	WREG32(mmCP_HQD_VMID, mqd->queue_state.cp_hqd_vmid);
+	WREG32(mmCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
+	WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->cp_mqd_base_addr_hi);
+	WREG32(mmCP_MQD_CONTROL, mqd->cp_mqd_control);
+	WREG32(mmCP_HQD_PQ_BASE, mqd->cp_hqd_pq_base_lo);
+	WREG32(mmCP_HQD_PQ_BASE_HI, mqd->cp_hqd_pq_base_hi);
+	WREG32(mmCP_HQD_PQ_CONTROL, mqd->cp_hqd_pq_control);
+	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->cp_hqd_pq_wptr_poll_addr_lo);
+	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->cp_hqd_pq_wptr_poll_addr_hi);
+	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, mqd->cp_hqd_pq_rptr_report_addr_lo);
+	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI, mqd->cp_hqd_pq_rptr_report_addr_hi);
+	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
+	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
+	WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
 
 	/* activate the HQD */
-	WREG32(mmCP_HQD_ACTIVE, mqd->queue_state.cp_hqd_active);
+	WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
 
 	return 0;
 }
@@ -3112,12 +3085,12 @@ static int gfx_v7_0_compute_queue_init(struct amdgpu_device *adev, int ring_id)
 {
 	int r;
 	u64 mqd_gpu_addr;
-	struct bonaire_mqd *mqd;
+	struct cik_mqd *mqd;
 	struct amdgpu_ring *ring = &adev->gfx.compute_ring[ring_id];
 
 	if (ring->mqd_obj == NULL) {
 		r = amdgpu_bo_create(adev,
-				sizeof(struct bonaire_mqd),
+				sizeof(struct cik_mqd),
 				PAGE_SIZE, true,
 				AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
 				&ring->mqd_obj);
-- 
2.9.3

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 05/22] drm/amdgpu: unify MQD programming sequence for kfd and amdgpu

[Andres Rodriguez]

Use the same gfx_*_mqd_commit function for kfd and amdgpu codepaths.

This removes the last duplicates of this programming sequence.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 51 ++---------------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c | 49 ++--------------------
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c             | 38 ++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.h             |  5 +++
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c             | 44 ++++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.h             |  5 +++
 6 files changed, 97 insertions(+), 95 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index 1a0a5f7..038b7ea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -29,6 +29,7 @@
 #include "cikd.h"
 #include "cik_sdma.h"
 #include "amdgpu_ucode.h"
+#include "gfx_v7_0.h"
 #include "gca/gfx_7_2_d.h"
 #include "gca/gfx_7_2_enum.h"
 #include "gca/gfx_7_2_sh_mask.h"
@@ -309,55 +310,11 @@ static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 	m = get_mqd(mqd);
 
 	is_wptr_shadow_valid = !get_user(wptr_shadow, wptr);
-
-	acquire_queue(kgd, pipe_id, queue_id);
-	WREG32(mmCP_MQD_BASE_ADDR, m->cp_mqd_base_addr_lo);
-	WREG32(mmCP_MQD_BASE_ADDR_HI, m->cp_mqd_base_addr_hi);
-	WREG32(mmCP_MQD_CONTROL, m->cp_mqd_control);
-
-	WREG32(mmCP_HQD_PQ_BASE, m->cp_hqd_pq_base_lo);
-	WREG32(mmCP_HQD_PQ_BASE_HI, m->cp_hqd_pq_base_hi);
-	WREG32(mmCP_HQD_PQ_CONTROL, m->cp_hqd_pq_control);
-
-	WREG32(mmCP_HQD_IB_CONTROL, m->cp_hqd_ib_control);
-	WREG32(mmCP_HQD_IB_BASE_ADDR, m->cp_hqd_ib_base_addr_lo);
-	WREG32(mmCP_HQD_IB_BASE_ADDR_HI, m->cp_hqd_ib_base_addr_hi);
-
-	WREG32(mmCP_HQD_IB_RPTR, m->cp_hqd_ib_rptr);
-
-	WREG32(mmCP_HQD_PERSISTENT_STATE, m->cp_hqd_persistent_state);
-	WREG32(mmCP_HQD_SEMA_CMD, m->cp_hqd_sema_cmd);
-	WREG32(mmCP_HQD_MSG_TYPE, m->cp_hqd_msg_type);
-
-	WREG32(mmCP_HQD_ATOMIC0_PREOP_LO, m->cp_hqd_atomic0_preop_lo);
-	WREG32(mmCP_HQD_ATOMIC0_PREOP_HI, m->cp_hqd_atomic0_preop_hi);
-	WREG32(mmCP_HQD_ATOMIC1_PREOP_LO, m->cp_hqd_atomic1_preop_lo);
-	WREG32(mmCP_HQD_ATOMIC1_PREOP_HI, m->cp_hqd_atomic1_preop_hi);
-
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, m->cp_hqd_pq_rptr_report_addr_lo);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
-			m->cp_hqd_pq_rptr_report_addr_hi);
-
-	WREG32(mmCP_HQD_PQ_RPTR, m->cp_hqd_pq_rptr);
-
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, m->cp_hqd_pq_wptr_poll_addr_lo);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, m->cp_hqd_pq_wptr_poll_addr_hi);
-
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, m->cp_hqd_pq_doorbell_control);
-
-	WREG32(mmCP_HQD_VMID, m->cp_hqd_vmid);
-
-	WREG32(mmCP_HQD_QUANTUM, m->cp_hqd_quantum);
-
-	WREG32(mmCP_HQD_PIPE_PRIORITY, m->cp_hqd_pipe_priority);
-	WREG32(mmCP_HQD_QUEUE_PRIORITY, m->cp_hqd_queue_priority);
-
-	WREG32(mmCP_HQD_IQ_RPTR, m->cp_hqd_iq_rptr);
-
 	if (is_wptr_shadow_valid)
-		WREG32(mmCP_HQD_PQ_WPTR, wptr_shadow);
+		m->cp_hqd_pq_wptr = wptr_shadow;
 
-	WREG32(mmCP_HQD_ACTIVE, m->cp_hqd_active);
+	acquire_queue(kgd, pipe_id, queue_id);
+	gfx_v7_0_mqd_commit(adev, m);
 	release_queue(kgd);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index 6697612..2ecef3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -28,6 +28,7 @@
 #include "amdgpu.h"
 #include "amdgpu_amdkfd.h"
 #include "amdgpu_ucode.h"
+#include "gfx_v8_0.h"
 #include "gca/gfx_8_0_sh_mask.h"
 #include "gca/gfx_8_0_d.h"
 #include "gca/gfx_8_0_enum.h"
@@ -251,53 +252,11 @@ static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 	m = get_mqd(mqd);
 
 	valid_wptr = copy_from_user(&shadow_wptr, wptr, sizeof(shadow_wptr));
-	acquire_queue(kgd, pipe_id, queue_id);
-
-	WREG32(mmCP_MQD_CONTROL, m->cp_mqd_control);
-	WREG32(mmCP_MQD_BASE_ADDR, m->cp_mqd_base_addr_lo);
-	WREG32(mmCP_MQD_BASE_ADDR_HI, m->cp_mqd_base_addr_hi);
-
-	WREG32(mmCP_HQD_VMID, m->cp_hqd_vmid);
-	WREG32(mmCP_HQD_PERSISTENT_STATE, m->cp_hqd_persistent_state);
-	WREG32(mmCP_HQD_PIPE_PRIORITY, m->cp_hqd_pipe_priority);
-	WREG32(mmCP_HQD_QUEUE_PRIORITY, m->cp_hqd_queue_priority);
-	WREG32(mmCP_HQD_QUANTUM, m->cp_hqd_quantum);
-	WREG32(mmCP_HQD_PQ_BASE, m->cp_hqd_pq_base_lo);
-	WREG32(mmCP_HQD_PQ_BASE_HI, m->cp_hqd_pq_base_hi);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, m->cp_hqd_pq_rptr_report_addr_lo);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
-			m->cp_hqd_pq_rptr_report_addr_hi);
-
 	if (valid_wptr > 0)
-		WREG32(mmCP_HQD_PQ_WPTR, shadow_wptr);
-
-	WREG32(mmCP_HQD_PQ_CONTROL, m->cp_hqd_pq_control);
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, m->cp_hqd_pq_doorbell_control);
-
-	WREG32(mmCP_HQD_EOP_BASE_ADDR, m->cp_hqd_eop_base_addr_lo);
-	WREG32(mmCP_HQD_EOP_BASE_ADDR_HI, m->cp_hqd_eop_base_addr_hi);
-	WREG32(mmCP_HQD_EOP_CONTROL, m->cp_hqd_eop_control);
-	WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
-	WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
-	WREG32(mmCP_HQD_EOP_EVENTS, m->cp_hqd_eop_done_events);
-
-	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_LO, m->cp_hqd_ctx_save_base_addr_lo);
-	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_HI, m->cp_hqd_ctx_save_base_addr_hi);
-	WREG32(mmCP_HQD_CTX_SAVE_CONTROL, m->cp_hqd_ctx_save_control);
-	WREG32(mmCP_HQD_CNTL_STACK_OFFSET, m->cp_hqd_cntl_stack_offset);
-	WREG32(mmCP_HQD_CNTL_STACK_SIZE, m->cp_hqd_cntl_stack_size);
-	WREG32(mmCP_HQD_WG_STATE_OFFSET, m->cp_hqd_wg_state_offset);
-	WREG32(mmCP_HQD_CTX_SAVE_SIZE, m->cp_hqd_ctx_save_size);
-
-	WREG32(mmCP_HQD_IB_CONTROL, m->cp_hqd_ib_control);
-
-	WREG32(mmCP_HQD_DEQUEUE_REQUEST, m->cp_hqd_dequeue_request);
-	WREG32(mmCP_HQD_ERROR, m->cp_hqd_error);
-	WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
-	WREG32(mmCP_HQD_EOP_DONES, m->cp_hqd_eop_dones);
-
-	WREG32(mmCP_HQD_ACTIVE, m->cp_hqd_active);
+		m->cp_hqd_pq_wptr = valid_wptr;
 
+	acquire_queue(kgd, pipe_id, queue_id);
+	gfx_v8_0_mqd_commit(adev, mqd);
 	release_queue(kgd);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index c606e0b..7e5b426 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3046,12 +3046,29 @@ static void gfx_v7_0_mqd_init(struct amdgpu_device *adev,
 	/* set the vmid for the queue */
 	mqd->cp_hqd_vmid = 0;
 
+	/* defaults */
+	mqd->cp_hqd_ib_control = RREG32(mmCP_HQD_IB_CONTROL);
+	mqd->cp_hqd_ib_base_addr_lo = RREG32(mmCP_HQD_IB_BASE_ADDR);
+	mqd->cp_hqd_ib_base_addr_hi = RREG32(mmCP_HQD_IB_BASE_ADDR_HI);
+	mqd->cp_hqd_ib_rptr = RREG32(mmCP_HQD_IB_RPTR);
+	mqd->cp_hqd_persistent_state = RREG32(mmCP_HQD_PERSISTENT_STATE);
+	mqd->cp_hqd_sema_cmd = RREG32(mmCP_HQD_SEMA_CMD);
+	mqd->cp_hqd_msg_type = RREG32(mmCP_HQD_MSG_TYPE);
+	mqd->cp_hqd_atomic0_preop_lo = RREG32(mmCP_HQD_ATOMIC0_PREOP_LO);
+	mqd->cp_hqd_atomic0_preop_hi = RREG32(mmCP_HQD_ATOMIC0_PREOP_HI);
+	mqd->cp_hqd_atomic1_preop_lo = RREG32(mmCP_HQD_ATOMIC1_PREOP_LO);
+	mqd->cp_hqd_atomic1_preop_hi = RREG32(mmCP_HQD_ATOMIC1_PREOP_HI);
+	mqd->cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+	mqd->cp_hqd_quantum = RREG32(mmCP_HQD_QUANTUM);
+	mqd->cp_hqd_pipe_priority = RREG32(mmCP_HQD_PIPE_PRIORITY);
+	mqd->cp_hqd_queue_priority = RREG32(mmCP_HQD_QUEUE_PRIORITY);
+	mqd->cp_hqd_iq_rptr = RREG32(mmCP_HQD_IQ_RPTR);
+
 	/* activate the queue */
 	mqd->cp_hqd_active = 1;
 }
 
-static int gfx_v7_0_mqd_commit(struct amdgpu_device *adev,
-			       struct cik_mqd *mqd)
+int gfx_v7_0_mqd_commit(struct amdgpu_device *adev, struct cik_mqd *mqd)
 {
 	u32 tmp;
 
@@ -3075,6 +3092,23 @@ static int gfx_v7_0_mqd_commit(struct amdgpu_device *adev,
 	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
 	WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
 
+	WREG32(mmCP_HQD_IB_CONTROL, mqd->cp_hqd_ib_control);
+	WREG32(mmCP_HQD_IB_BASE_ADDR, mqd->cp_hqd_ib_base_addr_lo);
+	WREG32(mmCP_HQD_IB_BASE_ADDR_HI, mqd->cp_hqd_ib_base_addr_hi);
+	WREG32(mmCP_HQD_IB_RPTR, mqd->cp_hqd_ib_rptr);
+	WREG32(mmCP_HQD_PERSISTENT_STATE, mqd->cp_hqd_persistent_state);
+	WREG32(mmCP_HQD_SEMA_CMD, mqd->cp_hqd_sema_cmd);
+	WREG32(mmCP_HQD_MSG_TYPE, mqd->cp_hqd_msg_type);
+	WREG32(mmCP_HQD_ATOMIC0_PREOP_LO, mqd->cp_hqd_atomic0_preop_lo);
+	WREG32(mmCP_HQD_ATOMIC0_PREOP_HI, mqd->cp_hqd_atomic0_preop_hi);
+	WREG32(mmCP_HQD_ATOMIC1_PREOP_LO, mqd->cp_hqd_atomic1_preop_lo);
+	WREG32(mmCP_HQD_ATOMIC1_PREOP_HI, mqd->cp_hqd_atomic1_preop_hi);
+	WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
+	WREG32(mmCP_HQD_QUANTUM, mqd->cp_hqd_quantum);
+	WREG32(mmCP_HQD_PIPE_PRIORITY, mqd->cp_hqd_pipe_priority);
+	WREG32(mmCP_HQD_QUEUE_PRIORITY, mqd->cp_hqd_queue_priority);
+	WREG32(mmCP_HQD_IQ_RPTR, mqd->cp_hqd_iq_rptr);
+
 	/* activate the HQD */
 	WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.h b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.h
index 2f5164c..6fb9c15 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.h
@@ -29,4 +29,9 @@ extern const struct amdgpu_ip_block_version gfx_v7_1_ip_block;
 extern const struct amdgpu_ip_block_version gfx_v7_2_ip_block;
 extern const struct amdgpu_ip_block_version gfx_v7_3_ip_block;
 
+struct amdgpu_device;
+struct cik_mqd;
+
+int gfx_v7_0_mqd_commit(struct amdgpu_device *adev, struct cik_mqd *mqd);
+
 #endif
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index af4b505..f862bc0 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4770,6 +4770,26 @@ static int gfx_v8_0_mqd_init(struct amdgpu_device *adev,
 	tmp = REG_SET_FIELD(tmp, CP_HQD_PERSISTENT_STATE, PRELOAD_SIZE, 0x53);
 	mqd->cp_hqd_persistent_state = tmp;
 
+	/* defaults */
+	mqd->cp_hqd_eop_rptr = RREG32(mmCP_HQD_EOP_RPTR);
+	mqd->cp_hqd_eop_wptr = RREG32(mmCP_HQD_EOP_WPTR);
+	mqd->cp_hqd_pipe_priority = RREG32(mmCP_HQD_PIPE_PRIORITY);
+	mqd->cp_hqd_queue_priority = RREG32(mmCP_HQD_QUEUE_PRIORITY);
+	mqd->cp_hqd_quantum = RREG32(mmCP_HQD_QUANTUM);
+	mqd->cp_hqd_ctx_save_base_addr_lo = RREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_LO);
+	mqd->cp_hqd_ctx_save_base_addr_hi = RREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_HI);
+	mqd->cp_hqd_ctx_save_control = RREG32(mmCP_HQD_CTX_SAVE_CONTROL);
+	mqd->cp_hqd_cntl_stack_offset = RREG32(mmCP_HQD_CNTL_STACK_OFFSET);
+	mqd->cp_hqd_cntl_stack_size = RREG32(mmCP_HQD_CNTL_STACK_SIZE);
+	mqd->cp_hqd_wg_state_offset = RREG32(mmCP_HQD_WG_STATE_OFFSET);
+	mqd->cp_hqd_ctx_save_size = RREG32(mmCP_HQD_CTX_SAVE_SIZE);
+	mqd->cp_hqd_ib_control = RREG32(mmCP_HQD_IB_CONTROL);
+	mqd->cp_hqd_eop_done_events = RREG32(mmCP_HQD_EOP_EVENTS);
+	mqd->cp_hqd_error = RREG32(mmCP_HQD_ERROR);
+	mqd->cp_hqd_eop_wptr_mem = RREG32(mmCP_HQD_EOP_WPTR_MEM);
+	mqd->cp_hqd_eop_dones = RREG32(mmCP_HQD_EOP_DONES);
+
+
 	/* activate the queue */
 	mqd->cp_hqd_active = 1;
 
@@ -4823,7 +4843,7 @@ static void gfx_v8_0_enable_doorbell(struct amdgpu_device *adev, bool enable)
 	adev->gfx.doorbell_enabled = true;
 }
 
-static int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
+int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
 {
 	uint32_t tmp;
 
@@ -4875,6 +4895,28 @@ static int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
 
 	/* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
 	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
+	WREG32(mmCP_HQD_EOP_RPTR, mqd->cp_hqd_eop_rptr);
+	WREG32(mmCP_HQD_EOP_WPTR, mqd->cp_hqd_eop_wptr);
+
+	/* set the HQD priority */
+	WREG32(mmCP_HQD_PIPE_PRIORITY, mqd->cp_hqd_pipe_priority);
+	WREG32(mmCP_HQD_QUEUE_PRIORITY, mqd->cp_hqd_queue_priority);
+	WREG32(mmCP_HQD_QUANTUM, mqd->cp_hqd_quantum);
+
+	/* set cwsr save area */
+	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_LO, mqd->cp_hqd_ctx_save_base_addr_lo);
+	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_HI, mqd->cp_hqd_ctx_save_base_addr_hi);
+	WREG32(mmCP_HQD_CTX_SAVE_CONTROL, mqd->cp_hqd_ctx_save_control);
+	WREG32(mmCP_HQD_CNTL_STACK_OFFSET, mqd->cp_hqd_cntl_stack_offset);
+	WREG32(mmCP_HQD_CNTL_STACK_SIZE, mqd->cp_hqd_cntl_stack_size);
+	WREG32(mmCP_HQD_WG_STATE_OFFSET, mqd->cp_hqd_wg_state_offset);
+	WREG32(mmCP_HQD_CTX_SAVE_SIZE, mqd->cp_hqd_ctx_save_size);
+
+	WREG32(mmCP_HQD_IB_CONTROL, mqd->cp_hqd_ib_control);
+	WREG32(mmCP_HQD_EOP_EVENTS, mqd->cp_hqd_eop_done_events);
+	WREG32(mmCP_HQD_ERROR, mqd->cp_hqd_error);
+	WREG32(mmCP_HQD_EOP_WPTR_MEM, mqd->cp_hqd_eop_wptr_mem);
+	WREG32(mmCP_HQD_EOP_DONES, mqd->cp_hqd_eop_dones);
 
 	/* set the vmid for the queue */
 	WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.h b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.h
index 788cc3a..ec3f11f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.h
@@ -27,4 +27,9 @@
 extern const struct amdgpu_ip_block_version gfx_v8_0_ip_block;
 extern const struct amdgpu_ip_block_version gfx_v8_1_ip_block;
 
+struct amdgpu_device;
+struct vi_mqd;
+
+int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd);
+
 #endif
-- 
2.9.3

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https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 06/22] drm/amdgpu: rename rdev to adev

[Andres Rodriguez]

Rename straggler instances of r(adeon)dev to a(mdgpu)dev

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 70 +++++++++++++++---------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 14 +++---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c      |  2 +-
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c      |  2 +-
 4 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index dba8a5b..3200ff9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -60,9 +60,9 @@ int amdgpu_amdkfd_init(void)
 	return ret;
 }
 
-bool amdgpu_amdkfd_load_interface(struct amdgpu_device *rdev)
+bool amdgpu_amdkfd_load_interface(struct amdgpu_device *adev)
 {
-	switch (rdev->asic_type) {
+	switch (adev->asic_type) {
 #ifdef CONFIG_DRM_AMDGPU_CIK
 	case CHIP_KAVERI:
 		kfd2kgd = amdgpu_amdkfd_gfx_7_get_functions();
@@ -86,16 +86,16 @@ void amdgpu_amdkfd_fini(void)
 	}
 }
 
-void amdgpu_amdkfd_device_probe(struct amdgpu_device *rdev)
+void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
 {
 	if (kgd2kfd)
-		rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev,
-					rdev->pdev, kfd2kgd);
+		adev->kfd = kgd2kfd->probe((struct kgd_dev *)adev,
+					adev->pdev, kfd2kgd);
 }
 
-void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev)
+void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 {
-	if (rdev->kfd) {
+	if (adev->kfd) {
 		struct kgd2kfd_shared_resources gpu_resources = {
 			.compute_vmid_bitmap = 0xFF00,
 
@@ -103,42 +103,42 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev)
 			.compute_pipe_count = 4 - 1,
 		};
 
-		amdgpu_doorbell_get_kfd_info(rdev,
+		amdgpu_doorbell_get_kfd_info(adev,
 				&gpu_resources.doorbell_physical_address,
 				&gpu_resources.doorbell_aperture_size,
 				&gpu_resources.doorbell_start_offset);
 
-		kgd2kfd->device_init(rdev->kfd, &gpu_resources);
+		kgd2kfd->device_init(adev->kfd, &gpu_resources);
 	}
 }
 
-void amdgpu_amdkfd_device_fini(struct amdgpu_device *rdev)
+void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev)
 {
-	if (rdev->kfd) {
-		kgd2kfd->device_exit(rdev->kfd);
-		rdev->kfd = NULL;
+	if (adev->kfd) {
+		kgd2kfd->device_exit(adev->kfd);
+		adev->kfd = NULL;
 	}
 }
 
-void amdgpu_amdkfd_interrupt(struct amdgpu_device *rdev,
+void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
 		const void *ih_ring_entry)
 {
-	if (rdev->kfd)
-		kgd2kfd->interrupt(rdev->kfd, ih_ring_entry);
+	if (adev->kfd)
+		kgd2kfd->interrupt(adev->kfd, ih_ring_entry);
 }
 
-void amdgpu_amdkfd_suspend(struct amdgpu_device *rdev)
+void amdgpu_amdkfd_suspend(struct amdgpu_device *adev)
 {
-	if (rdev->kfd)
-		kgd2kfd->suspend(rdev->kfd);
+	if (adev->kfd)
+		kgd2kfd->suspend(adev->kfd);
 }
 
-int amdgpu_amdkfd_resume(struct amdgpu_device *rdev)
+int amdgpu_amdkfd_resume(struct amdgpu_device *adev)
 {
 	int r = 0;
 
-	if (rdev->kfd)
-		r = kgd2kfd->resume(rdev->kfd);
+	if (adev->kfd)
+		r = kgd2kfd->resume(adev->kfd);
 
 	return r;
 }
@@ -147,7 +147,7 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
 			void **mem_obj, uint64_t *gpu_addr,
 			void **cpu_ptr)
 {
-	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;
+	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 	struct kgd_mem **mem = (struct kgd_mem **) mem_obj;
 	int r;
 
@@ -159,10 +159,10 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
 	if ((*mem) == NULL)
 		return -ENOMEM;
 
-	r = amdgpu_bo_create(rdev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,
+	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,
 			     AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, NULL, &(*mem)->bo);
 	if (r) {
-		dev_err(rdev->dev,
+		dev_err(adev->dev,
 			"failed to allocate BO for amdkfd (%d)\n", r);
 		return r;
 	}
@@ -170,21 +170,21 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
 	/* map the buffer */
 	r = amdgpu_bo_reserve((*mem)->bo, true);
 	if (r) {
-		dev_err(rdev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
+		dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
 		goto allocate_mem_reserve_bo_failed;
 	}
 
 	r = amdgpu_bo_pin((*mem)->bo, AMDGPU_GEM_DOMAIN_GTT,
 				&(*mem)->gpu_addr);
 	if (r) {
-		dev_err(rdev->dev, "(%d) failed to pin bo for amdkfd\n", r);
+		dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
 		goto allocate_mem_pin_bo_failed;
 	}
 	*gpu_addr = (*mem)->gpu_addr;
 
 	r = amdgpu_bo_kmap((*mem)->bo, &(*mem)->cpu_ptr);
 	if (r) {
-		dev_err(rdev->dev,
+		dev_err(adev->dev,
 			"(%d) failed to map bo to kernel for amdkfd\n", r);
 		goto allocate_mem_kmap_bo_failed;
 	}
@@ -220,27 +220,27 @@ void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
 
 uint64_t get_vmem_size(struct kgd_dev *kgd)
 {
-	struct amdgpu_device *rdev =
+	struct amdgpu_device *adev =
 		(struct amdgpu_device *)kgd;
 
 	BUG_ON(kgd == NULL);
 
-	return rdev->mc.real_vram_size;
+	return adev->mc.real_vram_size;
 }
 
 uint64_t get_gpu_clock_counter(struct kgd_dev *kgd)
 {
-	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;
+	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 
-	if (rdev->gfx.funcs->get_gpu_clock_counter)
-		return rdev->gfx.funcs->get_gpu_clock_counter(rdev);
+	if (adev->gfx.funcs->get_gpu_clock_counter)
+		return adev->gfx.funcs->get_gpu_clock_counter(adev);
 	return 0;
 }
 
 uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
 {
-	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;
+	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 
 	/* The sclk is in quantas of 10kHz */
-	return rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk / 100;
+	return adev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk / 100;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index de530f68d..73f83a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -39,15 +39,15 @@ struct kgd_mem {
 int amdgpu_amdkfd_init(void);
 void amdgpu_amdkfd_fini(void);
 
-bool amdgpu_amdkfd_load_interface(struct amdgpu_device *rdev);
+bool amdgpu_amdkfd_load_interface(struct amdgpu_device *adev);
 
-void amdgpu_amdkfd_suspend(struct amdgpu_device *rdev);
-int amdgpu_amdkfd_resume(struct amdgpu_device *rdev);
-void amdgpu_amdkfd_interrupt(struct amdgpu_device *rdev,
+void amdgpu_amdkfd_suspend(struct amdgpu_device *adev);
+int amdgpu_amdkfd_resume(struct amdgpu_device *adev);
+void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
 			const void *ih_ring_entry);
-void amdgpu_amdkfd_device_probe(struct amdgpu_device *rdev);
-void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev);
-void amdgpu_amdkfd_device_fini(struct amdgpu_device *rdev);
+void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev);
+void amdgpu_amdkfd_device_init(struct amdgpu_device *adev);
+void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev);
 
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void);
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 7e5b426..03a4cee 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -1842,7 +1842,7 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev)
 /**
  * gmc_v7_0_init_compute_vmid - gart enable
  *
- * @rdev: amdgpu_device pointer
+ * @adev: amdgpu_device pointer
  *
  * Initialize compute vmid sh_mem registers
  *
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index f862bc0..3cb39d4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3799,7 +3799,7 @@ static void gfx_v8_0_setup_rb(struct amdgpu_device *adev)
 /**
  * gfx_v8_0_init_compute_vmid - gart enable
  *
- * @rdev: amdgpu_device pointer
+ * @adev: amdgpu_device pointer
  *
  * Initialize compute vmid sh_mem registers
  *
-- 
2.9.3

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[PATCH 07/22] drm/amdgpu: take ownership of per-pipe configuration

[Andres Rodriguez]

Make amdgpu the owner of all per-pipe state of the HQDs.

This change will allow us to split the queues between kfd and amdgpu
with a queue granularity instead of pipe granularity.

This patch fixes kfd allocating an HDP_EOP region for its 3 pipes which
goes unused.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h                |  4 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c  | 13 +------
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c  |  1 +
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c              | 28 ++++++++++----
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c              | 33 +++++++++++-----
 .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c  | 45 ----------------------
 6 files changed, 49 insertions(+), 75 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index b577ec1..15e048c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -776,9 +776,9 @@ struct amdgpu_rlc {
 struct amdgpu_mec {
 	struct amdgpu_bo	*hpd_eop_obj;
 	u64			hpd_eop_gpu_addr;
-	u32 num_pipe;
 	u32 num_mec;
-	u32 num_queue;
+	u32 num_pipe_per_mec;
+	u32 num_queue_per_pipe;
 };
 
 struct amdgpu_kiq {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index 038b7ea..910f9d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -244,18 +244,7 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t hpd_size, uint64_t hpd_gpu_addr)
 {
-	struct amdgpu_device *adev = get_amdgpu_device(kgd);
-
-	uint32_t mec = (++pipe_id / CIK_PIPE_PER_MEC) + 1;
-	uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
-
-	lock_srbm(kgd, mec, pipe, 0, 0);
-	WREG32(mmCP_HPD_EOP_BASE_ADDR, lower_32_bits(hpd_gpu_addr >> 8));
-	WREG32(mmCP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(hpd_gpu_addr >> 8));
-	WREG32(mmCP_HPD_EOP_VMID, 0);
-	WREG32(mmCP_HPD_EOP_CONTROL, hpd_size);
-	unlock_srbm(kgd);
-
+	/* amdgpu owns the per-pipe state */
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index 2ecef3d..5843368 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -206,6 +206,7 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t hpd_size, uint64_t hpd_gpu_addr)
 {
+	/* amdgpu owns the per-pipe state */
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 03a4cee..2f1faa4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2806,6 +2806,7 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 {
 	int r;
 	u32 *hpd;
+	size_t mec_hpd_size;
 
 	/*
 	 * KV:    2 MEC, 4 Pipes/MEC, 8 Queues/Pipe - 64 Queues total
@@ -2813,13 +2814,26 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 	 * Nonetheless, we assign only 1 pipe because all other pipes will
 	 * be handled by KFD
 	 */
-	adev->gfx.mec.num_mec = 1;
-	adev->gfx.mec.num_pipe = 1;
-	adev->gfx.mec.num_queue = adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * 8;
+	switch (adev->asic_type) {
+	case CHIP_KAVERI:
+		adev->gfx.mec.num_mec = 2;
+		break;
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+	default:
+		adev->gfx.mec.num_mec = 1;
+		break;
+	}
+	adev->gfx.mec.num_pipe_per_mec = 4;
+	adev->gfx.mec.num_queue_per_pipe = 8;
 
+	mec_hpd_size = adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe_per_mec
+		* GFX7_MEC_HPD_SIZE * 2;
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
 		r = amdgpu_bo_create(adev,
-				     adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * GFX7_MEC_HPD_SIZE * 2,
+				     mec_hpd_size,
 				     PAGE_SIZE, true,
 				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
 				     &adev->gfx.mec.hpd_eop_obj);
@@ -2849,7 +2863,7 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 	}
 
 	/* clear memory.  Not sure if this is required or not */
-	memset(hpd, 0, adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * GFX7_MEC_HPD_SIZE * 2);
+	memset(hpd, 0, mec_hpd_size);
 
 	amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
 	amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
@@ -3187,9 +3201,9 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
 	tmp |= (1 << 23);
 	WREG32(mmCP_CPF_DEBUG, tmp);
 
-	/* init the pipes */
+	/* init all pipes (even the ones we don't own) */
 	for (i = 0; i < adev->gfx.mec.num_mec; i++)
-		for (j = 0; j < adev->gfx.mec.num_pipe; j++)
+		for (j = 0; j < adev->gfx.mec.num_pipe_per_mec; j++)
 			gfx_v7_0_compute_pipe_init(adev, i, j);
 
 	/* init the queues */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 3cb39d4..1bd4759 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1424,18 +1424,33 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 {
 	int r;
 	u32 *hpd;
+	size_t mec_hpd_size;
 
-	/*
-	 * we assign only 1 pipe because all other pipes will
-	 * be handled by KFD
-	 */
-	adev->gfx.mec.num_mec = 1;
-	adev->gfx.mec.num_pipe = 1;
-	adev->gfx.mec.num_queue = adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe * 8;
+	switch (adev->asic_type) {
+	case CHIP_FIJI:
+	case CHIP_TONGA:
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS12:
+	case CHIP_POLARIS10:
+	case CHIP_CARRIZO:
+		adev->gfx.mec.num_mec = 2;
+		break;
+	case CHIP_TOPAZ:
+	case CHIP_STONEY:
+	default:
+		adev->gfx.mec.num_mec = 1;
+		break;
+	}
+
+	adev->gfx.mec.num_pipe_per_mec = 4;
+	adev->gfx.mec.num_queue_per_pipe = 8;
+
+	/* only 1 pipe of the first MEC is owned by amdgpu */
+	mec_hpd_size = 1 * 1 * adev->gfx.mec.num_queue_per_pipe * GFX8_MEC_HPD_SIZE;
 
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
 		r = amdgpu_bo_create(adev,
-				     adev->gfx.mec.num_queue * GFX8_MEC_HPD_SIZE,
+				     mec_hpd_size,
 				     PAGE_SIZE, true,
 				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
 				     &adev->gfx.mec.hpd_eop_obj);
@@ -1464,7 +1479,7 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 		return r;
 	}
 
-	memset(hpd, 0, adev->gfx.mec.num_queue * GFX8_MEC_HPD_SIZE);
+	memset(hpd, 0, mec_hpd_size);
 
 	amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
 	amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index f49c551..c064dea 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -472,55 +472,10 @@ set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid,
 int init_pipelines(struct device_queue_manager *dqm,
 			unsigned int pipes_num, unsigned int first_pipe)
 {
-	void *hpdptr;
-	struct mqd_manager *mqd;
-	unsigned int i, err, inx;
-	uint64_t pipe_hpd_addr;
-
 	BUG_ON(!dqm || !dqm->dev);
 
 	pr_debug("kfd: In func %s\n", __func__);
 
-	/*
-	 * Allocate memory for the HPDs. This is hardware-owned per-pipe data.
-	 * The driver never accesses this memory after zeroing it.
-	 * It doesn't even have to be saved/restored on suspend/resume
-	 * because it contains no data when there are no active queues.
-	 */
-
-	err = kfd_gtt_sa_allocate(dqm->dev, CIK_HPD_EOP_BYTES * pipes_num,
-					&dqm->pipeline_mem);
-
-	if (err) {
-		pr_err("kfd: error allocate vidmem num pipes: %d\n",
-			pipes_num);
-		return -ENOMEM;
-	}
-
-	hpdptr = dqm->pipeline_mem->cpu_ptr;
-	dqm->pipelines_addr = dqm->pipeline_mem->gpu_addr;
-
-	memset(hpdptr, 0, CIK_HPD_EOP_BYTES * pipes_num);
-
-	mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
-	if (mqd == NULL) {
-		kfd_gtt_sa_free(dqm->dev, dqm->pipeline_mem);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < pipes_num; i++) {
-		inx = i + first_pipe;
-		/*
-		 * HPD buffer on GTT is allocated by amdkfd, no need to waste
-		 * space in GTT for pipelines we don't initialize
-		 */
-		pipe_hpd_addr = dqm->pipelines_addr + i * CIK_HPD_EOP_BYTES;
-		pr_debug("kfd: pipeline address %llX\n", pipe_hpd_addr);
-		/* = log2(bytes/4)-1 */
-		dqm->dev->kfd2kgd->init_pipeline(dqm->dev->kgd, inx,
-				CIK_HPD_EOP_BYTES_LOG2 - 3, pipe_hpd_addr);
-	}
-
 	return 0;
 }
 
-- 
2.9.3

_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 08/22] drm/radeon: take ownership of pipe initialization

[Andres Rodriguez]

Take ownership of pipe initialization away from KFD.

Note that hpd_eop_gpu_addr was already large enough to accomodate all
pipes.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/radeon/cik.c        | 27 ++++++++++++++-------------
 drivers/gpu/drm/radeon/radeon_kfd.c | 13 +------------
 2 files changed, 15 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index f6ff41a..82b57ef 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -4595,23 +4595,24 @@ static int cik_cp_compute_resume(struct radeon_device *rdev)
 	/* init the pipes */
 	mutex_lock(&rdev->srbm_mutex);
 
-	eop_gpu_addr = rdev->mec.hpd_eop_gpu_addr;
+	for (i = 0; i < rdev->mec.num_pipe; ++i) {
+		cik_srbm_select(rdev, 0, i, 0, 0);
 
-	cik_srbm_select(rdev, 0, 0, 0, 0);
-
-	/* write the EOP addr */
-	WREG32(CP_HPD_EOP_BASE_ADDR, eop_gpu_addr >> 8);
-	WREG32(CP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(eop_gpu_addr) >> 8);
+		eop_gpu_addr = rdev->mec.hpd_eop_gpu_addr + (i * MEC_HPD_SIZE * 2) ;
+		/* write the EOP addr */
+		WREG32(CP_HPD_EOP_BASE_ADDR, eop_gpu_addr >> 8);
+		WREG32(CP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(eop_gpu_addr) >> 8);
 
-	/* set the VMID assigned */
-	WREG32(CP_HPD_EOP_VMID, 0);
+		/* set the VMID assigned */
+		WREG32(CP_HPD_EOP_VMID, 0);
 
-	/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
-	tmp = RREG32(CP_HPD_EOP_CONTROL);
-	tmp &= ~EOP_SIZE_MASK;
-	tmp |= order_base_2(MEC_HPD_SIZE / 8);
-	WREG32(CP_HPD_EOP_CONTROL, tmp);
+		/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
+		tmp = RREG32(CP_HPD_EOP_CONTROL);
+		tmp &= ~EOP_SIZE_MASK;
+		tmp |= order_base_2(MEC_HPD_SIZE / 8);
+		WREG32(CP_HPD_EOP_CONTROL, tmp);
 
+	}
 	mutex_unlock(&rdev->srbm_mutex);
 
 	/* init the queues.  Just two for now. */
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 87a9ebb..a06e3b1 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -423,18 +423,7 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t hpd_size, uint64_t hpd_gpu_addr)
 {
-	uint32_t mec = (pipe_id / CIK_PIPE_PER_MEC) + 1;
-	uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
-
-	lock_srbm(kgd, mec, pipe, 0, 0);
-	write_register(kgd, CP_HPD_EOP_BASE_ADDR,
-			lower_32_bits(hpd_gpu_addr >> 8));
-	write_register(kgd, CP_HPD_EOP_BASE_ADDR_HI,
-			upper_32_bits(hpd_gpu_addr >> 8));
-	write_register(kgd, CP_HPD_EOP_VMID, 0);
-	write_register(kgd, CP_HPD_EOP_CONTROL, hpd_size);
-	unlock_srbm(kgd);
-
+	/* nothing to do here */
 	return 0;
 }
 
-- 
2.9.3

_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 09/22] drm/amdgpu: allow split of queues with kfd at queue granularity

[Andres Rodriguez]

Previously the queue/pipe split with kfd operated with pipe
granularity. This patch allows amdgpu to take ownership of an arbitrary
set of queues.

It also consolidates the last few magic numbers in the compute
initialization process into mec_init.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h             |  7 +++
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c           | 83 ++++++++++++++++++-------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c           | 79 ++++++++++++++++++-----
 drivers/gpu/drm/amd/include/kgd_kfd_interface.h |  1 +
 4 files changed, 133 insertions(+), 37 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 15e048c..f9df217 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -46,6 +46,8 @@
 #include <drm/drm_gem.h>
 #include <drm/amdgpu_drm.h>
 
+#include <kgd_kfd_interface.h>
+
 #include "amd_shared.h"
 #include "amdgpu_mode.h"
 #include "amdgpu_ih.h"
@@ -773,12 +775,17 @@ struct amdgpu_rlc {
 	u32 *register_restore;
 };
 
+#define AMDGPU_MAX_QUEUES KGD_MAX_QUEUES
+
 struct amdgpu_mec {
 	struct amdgpu_bo	*hpd_eop_obj;
 	u64			hpd_eop_gpu_addr;
 	u32 num_mec;
 	u32 num_pipe_per_mec;
 	u32 num_queue_per_pipe;
+
+	/* These are the resources for which amdgpu takes ownership */
+	DECLARE_BITMAP(queue_bitmap, AMDGPU_MAX_QUEUES);
 };
 
 struct amdgpu_kiq {
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 2f1faa4..fe46765 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -49,7 +49,6 @@
 #include "oss/oss_2_0_sh_mask.h"
 
 #define GFX7_NUM_GFX_RINGS     1
-#define GFX7_NUM_COMPUTE_RINGS 8
 #define GFX7_MEC_HPD_SIZE      2048
 
 
@@ -2802,18 +2801,46 @@ static void gfx_v7_0_mec_fini(struct amdgpu_device *adev)
 	}
 }
 
+static void gfx_v7_0_compute_queue_acquire(struct amdgpu_device *adev)
+{
+	int i, queue, pipe, mec;
+
+	/* policy for amdgpu compute queue ownership */
+	for (i = 0; i < AMDGPU_MAX_QUEUES; ++i) {
+		queue = i % adev->gfx.mec.num_queue_per_pipe;
+		pipe = (i / adev->gfx.mec.num_queue_per_pipe)
+			% adev->gfx.mec.num_pipe_per_mec;
+		mec = (i / adev->gfx.mec.num_queue_per_pipe)
+			/ adev->gfx.mec.num_pipe_per_mec;
+
+		/* we've run out of HW */
+		if (mec > adev->gfx.mec.num_mec)
+			break;
+
+		/* policy: amdgpu owns all queues in the first pipe */
+		if (mec == 0 && pipe == 0)
+			set_bit(i, adev->gfx.mec.queue_bitmap);
+	}
+
+	/* update the number of active compute rings */
+	adev->gfx.num_compute_rings =
+		bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_QUEUES);
+
+	/* If you hit this case and edited the policy, you probably just
+	 * need to increase AMDGPU_MAX_COMPUTE_RINGS */
+	WARN_ON(adev->gfx.num_compute_rings > AMDGPU_MAX_COMPUTE_RINGS);
+	if (adev->gfx.num_compute_rings > AMDGPU_MAX_COMPUTE_RINGS)
+		adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
+}
+
 static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 {
 	int r;
 	u32 *hpd;
 	size_t mec_hpd_size;
 
-	/*
-	 * KV:    2 MEC, 4 Pipes/MEC, 8 Queues/Pipe - 64 Queues total
-	 * CI/KB: 1 MEC, 4 Pipes/MEC, 8 Queues/Pipe - 32 Queues total
-	 * Nonetheless, we assign only 1 pipe because all other pipes will
-	 * be handled by KFD
-	 */
+	bitmap_zero(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_QUEUES);
+
 	switch (adev->asic_type) {
 	case CHIP_KAVERI:
 		adev->gfx.mec.num_mec = 2;
@@ -2829,6 +2856,10 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
 	adev->gfx.mec.num_pipe_per_mec = 4;
 	adev->gfx.mec.num_queue_per_pipe = 8;
 
+	/* take ownership of the relevant compute queues */
+	gfx_v7_0_compute_queue_acquire(adev);
+
+	/* allocate space for ALL pipes (even the ones we don't own) */
 	mec_hpd_size = adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe_per_mec
 		* GFX7_MEC_HPD_SIZE * 2;
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
@@ -4504,7 +4535,7 @@ static int gfx_v7_0_early_init(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	adev->gfx.num_gfx_rings = GFX7_NUM_GFX_RINGS;
-	adev->gfx.num_compute_rings = GFX7_NUM_COMPUTE_RINGS;
+	adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
 	adev->gfx.funcs = &gfx_v7_0_gfx_funcs;
 	adev->gfx.rlc.funcs = &gfx_v7_0_rlc_funcs;
 	gfx_v7_0_set_ring_funcs(adev);
@@ -4700,7 +4731,7 @@ static int gfx_v7_0_sw_init(void *handle)
 {
 	struct amdgpu_ring *ring;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-	int i, r;
+	int i, r, ring_id;
 
 	/* EOP Event */
 	r = amdgpu_irq_add_id(adev, 181, &adev->gfx.eop_irq);
@@ -4749,28 +4780,38 @@ static int gfx_v7_0_sw_init(void *handle)
 	}
 
 	/* set up the compute queues */
-	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+	for (i = 0, ring_id = 0; i < AMDGPU_MAX_QUEUES; i++) {
 		unsigned irq_type;
 
-		/* max 32 queues per MEC */
-		if ((i >= 32) || (i >= AMDGPU_MAX_COMPUTE_RINGS)) {
-			DRM_ERROR("Too many (%d) compute rings!\n", i);
-			break;
-		}
-		ring = &adev->gfx.compute_ring[i];
+		if (!test_bit(i, adev->gfx.mec.queue_bitmap))
+			continue;
+
+		ring = &adev->gfx.compute_ring[ring_id];
+
+		/* mec0 is me1 */
+		ring->me = ((i / adev->gfx.mec.num_queue_per_pipe)
+				/ adev->gfx.mec.num_pipe_per_mec)
+				+ 1;
+		ring->pipe = (i / adev->gfx.mec.num_queue_per_pipe)
+				% adev->gfx.mec.num_pipe_per_mec;
+		ring->queue = i % adev->gfx.mec.num_queue_per_pipe;
+
 		ring->ring_obj = NULL;
 		ring->use_doorbell = true;
-		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + i;
-		ring->me = 1; /* first MEC */
-		ring->pipe = i / 8;
-		ring->queue = i % 8;
+		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
 		sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
-		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP + ring->pipe;
+
+		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
+			+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
+			+ ring->pipe;
+
 		/* type-2 packets are deprecated on MEC, use type-3 instead */
 		r = amdgpu_ring_init(adev, ring, 1024,
 				     &adev->gfx.eop_irq, irq_type);
 		if (r)
 			return r;
+
+		ring_id++;
 	}
 
 	/* reserve GDS, GWS and OA resource for gfx */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1bd4759..1238b3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -52,7 +52,6 @@
 #include "smu/smu_7_1_3_d.h"
 
 #define GFX8_NUM_GFX_RINGS     1
-#define GFX8_NUM_COMPUTE_RINGS 8
 #define GFX8_MEC_HPD_SIZE 2048
 
 
@@ -1420,12 +1419,45 @@ static void gfx_v8_0_kiq_free_ring(struct amdgpu_ring *ring,
 
 #define GFX8_MEC_HPD_SIZE 2048
 
+static void gfx_v8_0_compute_queue_acquire(struct amdgpu_device *adev)
+{
+	int i, queue, pipe, mec;
+
+	/* policy for amdgpu compute queue ownership */
+	for (i = 0; i < AMDGPU_MAX_QUEUES; ++i) {
+		queue = i % adev->gfx.mec.num_queue_per_pipe;
+		pipe = (i / adev->gfx.mec.num_queue_per_pipe)
+			% adev->gfx.mec.num_pipe_per_mec;
+		mec = (i / adev->gfx.mec.num_queue_per_pipe)
+			/ adev->gfx.mec.num_pipe_per_mec;
+
+		/* we've run out of HW */
+		if (mec > adev->gfx.mec.num_mec)
+			break;
+
+		/* policy: amdgpu owns all queues in the first pipe */
+		if (mec == 0 && pipe == 0)
+			set_bit(i, adev->gfx.mec.queue_bitmap);
+	}
+
+	/* update the number of active compute rings */
+	adev->gfx.num_compute_rings =
+		bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_QUEUES);
+
+	/* If you hit this case and edited the policy, you probably just
+	 * need to increase AMDGPU_MAX_COMPUTE_RINGS */
+	if (WARN_ON(adev->gfx.num_compute_rings > AMDGPU_MAX_COMPUTE_RINGS))
+		adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
+}
+
 static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 {
 	int r;
 	u32 *hpd;
 	size_t mec_hpd_size;
 
+	bitmap_zero(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_QUEUES);
+
 	switch (adev->asic_type) {
 	case CHIP_FIJI:
 	case CHIP_TONGA:
@@ -1445,8 +1477,10 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
 	adev->gfx.mec.num_pipe_per_mec = 4;
 	adev->gfx.mec.num_queue_per_pipe = 8;
 
-	/* only 1 pipe of the first MEC is owned by amdgpu */
-	mec_hpd_size = 1 * 1 * adev->gfx.mec.num_queue_per_pipe * GFX8_MEC_HPD_SIZE;
+	/* take ownership of the relevant compute queues */
+	gfx_v8_0_compute_queue_acquire(adev);
+
+	mec_hpd_size = adev->gfx.num_compute_rings * GFX8_MEC_HPD_SIZE;
 
 	if (adev->gfx.mec.hpd_eop_obj == NULL) {
 		r = amdgpu_bo_create(adev,
@@ -2090,7 +2124,7 @@ static int gfx_v8_0_gpu_early_init(struct amdgpu_device *adev)
 
 static int gfx_v8_0_sw_init(void *handle)
 {
-	int i, r;
+	int i, r, ring_id;
 	struct amdgpu_ring *ring;
 	struct amdgpu_kiq *kiq;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -2166,28 +2200,41 @@ static int gfx_v8_0_sw_init(void *handle)
 	}
 
 	/* set up the compute queues */
-	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+	for (i = 0, ring_id = 0; i < AMDGPU_MAX_QUEUES; i++) {
 		unsigned irq_type;
 
-		/* max 32 queues per MEC */
-		if ((i >= 32) || (i >= AMDGPU_MAX_COMPUTE_RINGS)) {
-			DRM_ERROR("Too many (%d) compute rings!\n", i);
+		if (!test_bit(i, adev->gfx.mec.queue_bitmap))
+			continue;
+
+		if (WARN_ON(ring_id >= AMDGPU_MAX_COMPUTE_RINGS))
 			break;
-		}
-		ring = &adev->gfx.compute_ring[i];
+
+		ring = &adev->gfx.compute_ring[ring_id];
+
+		/* mec0 is me1 */
+		ring->me = ((i / adev->gfx.mec.num_queue_per_pipe)
+				/ adev->gfx.mec.num_pipe_per_mec)
+				+ 1;
+		ring->pipe = (i / adev->gfx.mec.num_queue_per_pipe)
+				% adev->gfx.mec.num_pipe_per_mec;
+		ring->queue = i % adev->gfx.mec.num_queue_per_pipe;
+
 		ring->ring_obj = NULL;
 		ring->use_doorbell = true;
-		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + i;
-		ring->me = 1; /* first MEC */
-		ring->pipe = i / 8;
-		ring->queue = i % 8;
+		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
 		sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
-		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP + ring->pipe;
+
+		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
+			+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
+			+ ring->pipe;
+
 		/* type-2 packets are deprecated on MEC, use type-3 instead */
 		r = amdgpu_ring_init(adev, ring, 1024, &adev->gfx.eop_irq,
 				     irq_type);
 		if (r)
 			return r;
+
+		ring_id++;
 	}
 
 	/* reserve GDS, GWS and OA resource for gfx */
@@ -5700,7 +5747,7 @@ static int gfx_v8_0_early_init(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	adev->gfx.num_gfx_rings = GFX8_NUM_GFX_RINGS;
-	adev->gfx.num_compute_rings = GFX8_NUM_COMPUTE_RINGS;
+	adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
 	adev->gfx.funcs = &gfx_v8_0_gfx_funcs;
 	gfx_v8_0_set_ring_funcs(adev);
 	gfx_v8_0_set_irq_funcs(adev);
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index a09d9f3..67f6d19 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -33,6 +33,7 @@
 struct pci_dev;
 
 #define KFD_INTERFACE_VERSION 1
+#define KGD_MAX_QUEUES 128
 
 struct kfd_dev;
 struct kgd_dev;
-- 
2.9.3

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https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 10/22] drm/amdgpu: teach amdgpu how to enable interrupts for any pipe

[Andres Rodriguez]

The current implementation is hardcoded to enable ME1/PIPE0 interrupts
only.

This patch allows amdgpu to enable interrupts for any pipe of ME1.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 48 +++++++++++++----------------------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 33 ++++++++++++------------
 2 files changed, 34 insertions(+), 47 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index fe46765..68265b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -5039,42 +5039,28 @@ static void gfx_v7_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
 						     int me, int pipe,
 						     enum amdgpu_interrupt_state state)
 {
-	u32 mec_int_cntl, mec_int_cntl_reg;
-
-	/*
-	 * amdgpu controls only pipe 0 of MEC1. That's why this function only
-	 * handles the setting of interrupts for this specific pipe. All other
-	 * pipes' interrupts are set by amdkfd.
+	/* Me 0 is for graphics and Me 2 is reserved for HW scheduling
+	 * So we should only really be configuring ME 1 i.e. MEC0
 	 */
-
-	if (me == 1) {
-		switch (pipe) {
-		case 0:
-			mec_int_cntl_reg = mmCP_ME1_PIPE0_INT_CNTL;
-			break;
-		default:
-			DRM_DEBUG("invalid pipe %d\n", pipe);
-			return;
-		}
-	} else {
-		DRM_DEBUG("invalid me %d\n", me);
+	if (me != 1) {
+		DRM_ERROR("Ignoring request to enable interrupts for invalid me:%d\n", me);
 		return;
 	}
 
-	switch (state) {
-	case AMDGPU_IRQ_STATE_DISABLE:
-		mec_int_cntl = RREG32(mec_int_cntl_reg);
-		mec_int_cntl &= ~CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
-		WREG32(mec_int_cntl_reg, mec_int_cntl);
-		break;
-	case AMDGPU_IRQ_STATE_ENABLE:
-		mec_int_cntl = RREG32(mec_int_cntl_reg);
-		mec_int_cntl |= CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
-		WREG32(mec_int_cntl_reg, mec_int_cntl);
-		break;
-	default:
-		break;
+	if (pipe >= adev->gfx.mec.num_pipe_per_mec) {
+		DRM_ERROR("Ignoring request to enable interrupts for invalid "
+				"me:%d pipe:%d\n", pipe, me);
+		return;
 	}
+
+	mutex_lock(&adev->srbm_mutex);
+	cik_srbm_select(adev, me, pipe, 0, 0);
+
+	WREG32_FIELD(CPC_INT_CNTL, TIME_STAMP_INT_ENABLE,
+			state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+
+	cik_srbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
 }
 
 static int gfx_v7_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1238b3d..861334b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -6786,27 +6786,28 @@ static void gfx_v8_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
 						     int me, int pipe,
 						     enum amdgpu_interrupt_state state)
 {
-	/*
-	 * amdgpu controls only pipe 0 of MEC1. That's why this function only
-	 * handles the setting of interrupts for this specific pipe. All other
-	 * pipes' interrupts are set by amdkfd.
+	/* Me 0 is for graphics and Me 2 is reserved for HW scheduling
+	 * So we should only really be configuring ME 1 i.e. MEC0
 	 */
+	if (me != 1) {
+		DRM_ERROR("Ignoring request to enable interrupts for invalid me:%d\n", me);
+		return;
+	}
 
-	if (me == 1) {
-		switch (pipe) {
-		case 0:
-			break;
-		default:
-			DRM_DEBUG("invalid pipe %d\n", pipe);
-			return;
-		}
-	} else {
-		DRM_DEBUG("invalid me %d\n", me);
+	if (pipe >= adev->gfx.mec.num_pipe_per_mec) {
+		DRM_ERROR("Ignoring request to enable interrupts for invalid "
+				"me:%d pipe:%d\n", pipe, me);
 		return;
 	}
 
-	WREG32_FIELD(CP_ME1_PIPE0_INT_CNTL, TIME_STAMP_INT_ENABLE,
-		     state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+	mutex_lock(&adev->srbm_mutex);
+	vi_srbm_select(adev, me, pipe, 0, 0);
+
+	WREG32_FIELD(CPC_INT_CNTL, TIME_STAMP_INT_ENABLE,
+			state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+
+	vi_srbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
 }
 
 static int gfx_v8_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
-- 
2.9.3

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[PATCH 11/22] drm/amdkfd: allow split HQD on per-queue granularity v4

[Andres Rodriguez]

Update the KGD to KFD interface to allow sharing pipes with queue
granularity instead of pipe granularity.

This allows for more interesting pipe/queue splits.

v2: fix overflow check for res.queue_mask
v3: fix shift overflow when setting res.queue_mask
v4: fix comment in is_pipeline_enabled()

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c         |  22 ++++-
 drivers/gpu/drm/amd/amdkfd/kfd_device.c            |   4 +
 .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c  | 100 ++++++++++++++-------
 .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.h  |  10 +--
 .../drm/amd/amdkfd/kfd_device_queue_manager_cik.c  |   2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c    |   3 +-
 .../gpu/drm/amd/amdkfd/kfd_process_queue_manager.c |   2 +-
 drivers/gpu/drm/amd/include/kgd_kfd_interface.h    |  17 ++--
 drivers/gpu/drm/radeon/radeon_kfd.c                |  21 ++++-
 9 files changed, 126 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 3200ff9..8fc5aa3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -95,14 +95,30 @@ void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
 
 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 {
+	int i;
+	int last_valid_bit;
 	if (adev->kfd) {
 		struct kgd2kfd_shared_resources gpu_resources = {
 			.compute_vmid_bitmap = 0xFF00,
-
-			.first_compute_pipe = 1,
-			.compute_pipe_count = 4 - 1,
+			.num_mec = adev->gfx.mec.num_mec,
+			.num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
+			.num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe
 		};
 
+		/* this is going to have a few of the MSBs set that we need to
+		 * clear */
+		bitmap_complement(gpu_resources.queue_bitmap,
+				  adev->gfx.mec.queue_bitmap,
+				  KGD_MAX_QUEUES);
+
+		/* According to linux/bitmap.h we shouldn't use bitmap_clear if
+		 * nbits is not compile time constant */
+		last_valid_bit = adev->gfx.mec.num_mec
+				* adev->gfx.mec.num_pipe_per_mec
+				* adev->gfx.mec.num_queue_per_pipe;
+		for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
+			clear_bit(i, gpu_resources.queue_bitmap);
+
 		amdgpu_doorbell_get_kfd_info(adev,
 				&gpu_resources.doorbell_physical_address,
 				&gpu_resources.doorbell_aperture_size,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 3f95f7c..88187bf 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -226,6 +226,10 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 
 	kfd->shared_resources = *gpu_resources;
 
+	/* We only use the first MEC */
+	if (kfd->shared_resources.num_mec > 1)
+		kfd->shared_resources.num_mec = 1;
+
 	/* calculate max size of mqds needed for queues */
 	size = max_num_of_queues_per_device *
 			kfd->device_info->mqd_size_aligned;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index c064dea..5f28720 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -63,21 +63,44 @@ enum KFD_MQD_TYPE get_mqd_type_from_queue_type(enum kfd_queue_type type)
 	return KFD_MQD_TYPE_CP;
 }
 
-unsigned int get_first_pipe(struct device_queue_manager *dqm)
+static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe)
+{
+	int i;
+	int pipe_offset = mec * dqm->dev->shared_resources.num_pipe_per_mec
+		+ pipe * dqm->dev->shared_resources.num_queue_per_pipe;
+
+	/* queue is available for KFD usage if bit is 1 */
+	for (i = 0; i <  dqm->dev->shared_resources.num_queue_per_pipe; ++i)
+		if (test_bit(pipe_offset + i,
+			      dqm->dev->shared_resources.queue_bitmap))
+			return true;
+	return false;
+}
+
+unsigned int get_mec_num(struct device_queue_manager *dqm)
+{
+	BUG_ON(!dqm || !dqm->dev);
+
+	return dqm->dev->shared_resources.num_mec;
+}
+
+unsigned int get_queues_num(struct device_queue_manager *dqm)
 {
 	BUG_ON(!dqm || !dqm->dev);
-	return dqm->dev->shared_resources.first_compute_pipe;
+	return bitmap_weight(dqm->dev->shared_resources.queue_bitmap,
+				KGD_MAX_QUEUES);
 }
 
-unsigned int get_pipes_num(struct device_queue_manager *dqm)
+unsigned int get_queues_per_pipe(struct device_queue_manager *dqm)
 {
 	BUG_ON(!dqm || !dqm->dev);
-	return dqm->dev->shared_resources.compute_pipe_count;
+	return dqm->dev->shared_resources.num_queue_per_pipe;
 }
 
-static inline unsigned int get_pipes_num_cpsch(void)
+unsigned int get_pipes_per_mec(struct device_queue_manager *dqm)
 {
-	return PIPE_PER_ME_CP_SCHEDULING;
+	BUG_ON(!dqm || !dqm->dev);
+	return dqm->dev->shared_resources.num_pipe_per_mec;
 }
 
 void program_sh_mem_settings(struct device_queue_manager *dqm,
@@ -200,12 +223,16 @@ static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q)
 
 	set = false;
 
-	for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_num(dqm);
-			pipe = ((pipe + 1) % get_pipes_num(dqm)), ++i) {
+	for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_per_mec(dqm);
+			pipe = ((pipe + 1) % get_pipes_per_mec(dqm)), ++i) {
+
+		if (!is_pipe_enabled(dqm, 0, pipe))
+			continue;
+
 		if (dqm->allocated_queues[pipe] != 0) {
 			bit = find_first_bit(
 				(unsigned long *)&dqm->allocated_queues[pipe],
-				QUEUES_PER_PIPE);
+				get_queues_per_pipe(dqm));
 
 			clear_bit(bit,
 				(unsigned long *)&dqm->allocated_queues[pipe]);
@@ -222,7 +249,7 @@ static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q)
 	pr_debug("kfd: DQM %s hqd slot - pipe (%d) queue(%d)\n",
 				__func__, q->pipe, q->queue);
 	/* horizontal hqd allocation */
-	dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_num(dqm);
+	dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_per_mec(dqm);
 
 	return 0;
 }
@@ -469,36 +496,25 @@ set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid,
 						vmid);
 }
 
-int init_pipelines(struct device_queue_manager *dqm,
-			unsigned int pipes_num, unsigned int first_pipe)
-{
-	BUG_ON(!dqm || !dqm->dev);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	return 0;
-}
-
 static void init_interrupts(struct device_queue_manager *dqm)
 {
 	unsigned int i;
 
 	BUG_ON(dqm == NULL);
 
-	for (i = 0 ; i < get_pipes_num(dqm) ; i++)
-		dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd,
-				i + get_first_pipe(dqm));
+	for (i = 0 ; i < get_pipes_per_mec(dqm) ; i++)
+		if (is_pipe_enabled(dqm, 0, i))
+			dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, i);
 }
 
 static int init_scheduler(struct device_queue_manager *dqm)
 {
-	int retval;
+	int retval = 0;
 
 	BUG_ON(!dqm);
 
 	pr_debug("kfd: In %s\n", __func__);
 
-	retval = init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm));
 	return retval;
 }
 
@@ -509,21 +525,21 @@ static int initialize_nocpsch(struct device_queue_manager *dqm)
 	BUG_ON(!dqm);
 
 	pr_debug("kfd: In func %s num of pipes: %d\n",
-			__func__, get_pipes_num(dqm));
+			__func__, get_pipes_per_mec(dqm));
 
 	mutex_init(&dqm->lock);
 	INIT_LIST_HEAD(&dqm->queues);
 	dqm->queue_count = dqm->next_pipe_to_allocate = 0;
 	dqm->sdma_queue_count = 0;
-	dqm->allocated_queues = kcalloc(get_pipes_num(dqm),
+	dqm->allocated_queues = kcalloc(get_pipes_per_mec(dqm),
 					sizeof(unsigned int), GFP_KERNEL);
 	if (!dqm->allocated_queues) {
 		mutex_destroy(&dqm->lock);
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < get_pipes_num(dqm); i++)
-		dqm->allocated_queues[i] = (1 << QUEUES_PER_PIPE) - 1;
+	for (i = 0; i < get_pipes_per_mec(dqm); i++)
+		dqm->allocated_queues[i] = (1 << get_queues_per_pipe(dqm)) - 1;
 
 	dqm->vmid_bitmap = (1 << VMID_PER_DEVICE) - 1;
 	dqm->sdma_bitmap = (1 << CIK_SDMA_QUEUES) - 1;
@@ -630,18 +646,34 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 
 static int set_sched_resources(struct device_queue_manager *dqm)
 {
+	int i;
 	struct scheduling_resources res;
-	unsigned int queue_num, queue_mask;
 
 	BUG_ON(!dqm);
 
 	pr_debug("kfd: In func %s\n", __func__);
 
-	queue_num = get_pipes_num_cpsch() * QUEUES_PER_PIPE;
-	queue_mask = (1 << queue_num) - 1;
 	res.vmid_mask = (1 << VMID_PER_DEVICE) - 1;
 	res.vmid_mask <<= KFD_VMID_START_OFFSET;
-	res.queue_mask = queue_mask << (get_first_pipe(dqm) * QUEUES_PER_PIPE);
+
+	/* Avoid touching the internal representation queue_bitmap directly.
+	 * Even though doing a simple memcpy might sound tempting, it would
+	 * silently break if the implementation of bitmaps is changed */
+	res.queue_mask = 0;
+	for (i = 0; i < KGD_MAX_QUEUES; ++i) {
+		if (!test_bit(i, dqm->dev->shared_resources.queue_bitmap))
+			continue;
+
+		/* This situation may be hit in the future if a new HW
+		 * generation exposes more than 64 queues. If so, the
+		 * definition of res.queue_mask needs updating */
+		if (WARN_ON(i > (sizeof(res.queue_mask)*8))) {
+			pr_err("Invalid queue enabled by amdgpu: %d\n", i);
+			break;
+		}
+
+		res.queue_mask |= (1ull << i);
+	}
 	res.gws_mask = res.oac_mask = res.gds_heap_base =
 						res.gds_heap_size = 0;
 
@@ -660,7 +692,7 @@ static int initialize_cpsch(struct device_queue_manager *dqm)
 	BUG_ON(!dqm);
 
 	pr_debug("kfd: In func %s num of pipes: %d\n",
-			__func__, get_pipes_num_cpsch());
+			__func__, get_pipes_per_mec(dqm));
 
 	mutex_init(&dqm->lock);
 	INIT_LIST_HEAD(&dqm->queues);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
index a625b91..66b9615 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -30,8 +30,6 @@
 #include "kfd_mqd_manager.h"
 
 #define QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS	(500)
-#define QUEUES_PER_PIPE				(8)
-#define PIPE_PER_ME_CP_SCHEDULING		(3)
 #define CIK_VMID_NUM				(8)
 #define KFD_VMID_START_OFFSET			(8)
 #define VMID_PER_DEVICE				CIK_VMID_NUM
@@ -182,10 +180,10 @@ void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops);
 void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops);
 void program_sh_mem_settings(struct device_queue_manager *dqm,
 					struct qcm_process_device *qpd);
-int init_pipelines(struct device_queue_manager *dqm,
-		unsigned int pipes_num, unsigned int first_pipe);
-unsigned int get_first_pipe(struct device_queue_manager *dqm);
-unsigned int get_pipes_num(struct device_queue_manager *dqm);
+unsigned int get_mec_num(struct device_queue_manager *dqm);
+unsigned int get_queues_num(struct device_queue_manager *dqm);
+unsigned int get_queues_per_pipe(struct device_queue_manager *dqm);
+unsigned int get_pipes_per_mec(struct device_queue_manager *dqm);
 
 static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
 {
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
index c6f435a..48dc056 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
@@ -151,5 +151,5 @@ static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 
 static int initialize_cpsch_cik(struct device_queue_manager *dqm)
 {
-	return init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm));
+	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
index ca8c093..7131998 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
@@ -65,8 +65,7 @@ static void pm_calc_rlib_size(struct packet_manager *pm,
 
 	/* check if there is over subscription*/
 	*over_subscription = false;
-	if ((process_count > 1) ||
-		queue_count > PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE) {
+	if ((process_count > 1) || queue_count > get_queues_num(pm->dqm)) {
 		*over_subscription = true;
 		pr_debug("kfd: over subscribed runlist\n");
 	}
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index e1fb40b..32cdf2b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -209,7 +209,7 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 		/* check if there is over subscription */
 		if ((sched_policy == KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) &&
 		((dev->dqm->processes_count >= VMID_PER_DEVICE) ||
-		(dev->dqm->queue_count >= PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE))) {
+		(dev->dqm->queue_count >= get_queues_num(dev->dqm)))) {
 			pr_err("kfd: over-subscription is not allowed in radeon_kfd.sched_policy == 1\n");
 			retval = -EPERM;
 			goto err_create_queue;
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index 67f6d19..91ef148 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -29,10 +29,11 @@
 #define KGD_KFD_INTERFACE_H_INCLUDED
 
 #include <linux/types.h>
+#include <linux/bitmap.h>
 
 struct pci_dev;
 
-#define KFD_INTERFACE_VERSION 1
+#define KFD_INTERFACE_VERSION 2
 #define KGD_MAX_QUEUES 128
 
 struct kfd_dev;
@@ -62,11 +63,17 @@ struct kgd2kfd_shared_resources {
 	/* Bit n == 1 means VMID n is available for KFD. */
 	unsigned int compute_vmid_bitmap;
 
-	/* Compute pipes are counted starting from MEC0/pipe0 as 0. */
-	unsigned int first_compute_pipe;
+	/* number of mec available from the hardware */
+	uint32_t num_mec;
 
-	/* Number of MEC pipes available for KFD. */
-	unsigned int compute_pipe_count;
+	/* number of pipes per mec */
+	uint32_t num_pipe_per_mec;
+
+	/* number of queues per pipe */
+	uint32_t num_queue_per_pipe;
+
+	/* Bit n == 1 means Queue n is available for KFD */
+	DECLARE_BITMAP(queue_bitmap, KGD_MAX_QUEUES);
 
 	/* Base address of doorbell aperture. */
 	phys_addr_t doorbell_physical_address;
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index a06e3b1..699fe7f 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -179,14 +179,29 @@ void radeon_kfd_device_probe(struct radeon_device *rdev)
 
 void radeon_kfd_device_init(struct radeon_device *rdev)
 {
+	int i, queue, pipe, mec;
+
 	if (rdev->kfd) {
 		struct kgd2kfd_shared_resources gpu_resources = {
 			.compute_vmid_bitmap = 0xFF00,
-
-			.first_compute_pipe = 1,
-			.compute_pipe_count = 4 - 1,
+			.num_mec = 1,
+			.num_pipe_per_mec = 4,
+			.num_queue_per_pipe = 8
 		};
 
+		bitmap_zero(gpu_resources.queue_bitmap, KGD_MAX_QUEUES);
+
+		for (i = 0; i < KGD_MAX_QUEUES; ++i) {
+			queue = i % gpu_resources.num_queue_per_pipe;
+			pipe = (i / gpu_resources.num_queue_per_pipe)
+				% gpu_resources.num_pipe_per_mec;
+			mec = (i / gpu_resources.num_queue_per_pipe)
+				/ gpu_resources.num_pipe_per_mec;
+
+			if (mec == 0 && pipe > 0)
+				set_bit(i, gpu_resources.queue_bitmap);
+		}
+
 		radeon_doorbell_get_kfd_info(rdev,
 				&gpu_resources.doorbell_physical_address,
 				&gpu_resources.doorbell_aperture_size,
-- 
2.9.3

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 12/22] drm/amdgpu: remove duplicate magic constants from amdgpu_amdkfd_gfx*.c

[Andres Rodriguez]

This information is already available in adev.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 12 ++++++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c | 12 ++++++------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index 910f9d3..5254562 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -39,8 +39,6 @@
 #include "gmc/gmc_7_1_sh_mask.h"
 #include "cik_structs.h"
 
-#define CIK_PIPE_PER_MEC	(4)
-
 enum {
 	MAX_TRAPID = 8,		/* 3 bits in the bitfield. */
 	MAX_WATCH_ADDRESSES = 4
@@ -186,8 +184,10 @@ static void unlock_srbm(struct kgd_dev *kgd)
 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t queue_id)
 {
-	uint32_t mec = (++pipe_id / CIK_PIPE_PER_MEC) + 1;
-	uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
+	struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+	uint32_t mec = (++pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+	uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 
 	lock_srbm(kgd, mec, pipe, queue_id, 0);
 }
@@ -254,8 +254,8 @@ static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 	uint32_t mec;
 	uint32_t pipe;
 
-	mec = (pipe_id / CIK_PIPE_PER_MEC) + 1;
-	pipe = (pipe_id % CIK_PIPE_PER_MEC);
+	mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+	pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 
 	lock_srbm(kgd, mec, pipe, 0, 0);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index 5843368..db7410a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -39,8 +39,6 @@
 #include "vi_structs.h"
 #include "vid.h"
 
-#define VI_PIPE_PER_MEC	(4)
-
 struct cik_sdma_rlc_registers;
 
 /*
@@ -147,8 +145,10 @@ static void unlock_srbm(struct kgd_dev *kgd)
 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t queue_id)
 {
-	uint32_t mec = (++pipe_id / VI_PIPE_PER_MEC) + 1;
-	uint32_t pipe = (pipe_id % VI_PIPE_PER_MEC);
+	struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+	uint32_t mec = (++pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+	uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 
 	lock_srbm(kgd, mec, pipe, queue_id, 0);
 }
@@ -216,8 +216,8 @@ static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 	uint32_t mec;
 	uint32_t pipe;
 
-	mec = (++pipe_id / VI_PIPE_PER_MEC) + 1;
-	pipe = (pipe_id % VI_PIPE_PER_MEC);
+	mec = (++pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+	pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 
 	lock_srbm(kgd, mec, pipe, 0, 0);
 
-- 
2.9.3

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 13/22] drm/amdgpu: allocate queues horizontally across pipes

[Andres Rodriguez]

Pipes provide better concurrency than queues, therefore we want to make
sure that apps use queues from different pipes whenever possible.

Optimize for the trivial case where an app will consume rings in order,
therefore we don't want adjacent rings to belong to the same pipe.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h   | 13 ++++++
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 78 +++++++++++++++++++-------------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 83 +++++++++++++++++++++--------------
 3 files changed, 109 insertions(+), 65 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index f9df217..377f58a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1646,6 +1646,19 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
 		return NULL;
 }
 
+static inline bool amdgpu_is_mec_queue_enabled(struct amdgpu_device *adev,
+						int mec, int pipe, int queue)
+{
+	int bit = 0;
+
+	bit += mec * adev->gfx.mec.num_pipe_per_mec
+		* adev->gfx.mec.num_queue_per_pipe;
+	bit += pipe * adev->gfx.mec.num_queue_per_pipe;
+	bit += queue;
+
+	return test_bit(bit, adev->gfx.mec.queue_bitmap);
+}
+
 /*
  * ASICs macro.
  */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 68265b7..3ca5519 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -4727,11 +4727,42 @@ static void gfx_v7_0_gpu_early_init(struct amdgpu_device *adev)
 	adev->gfx.config.gb_addr_config = gb_addr_config;
 }
 
+static int gfx_v7_0_compute_ring_init(struct amdgpu_device *adev, int ring_id,
+					int mec, int pipe, int queue)
+{
+	int r;
+	unsigned irq_type;
+	struct amdgpu_ring *ring = &adev->gfx.compute_ring[ring_id];
+
+	/* mec0 is me1 */
+	ring->me = mec + 1;
+	ring->pipe = pipe;
+	ring->queue = queue;
+
+	ring->ring_obj = NULL;
+	ring->use_doorbell = true;
+	ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
+	sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
+
+	irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
+		+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
+		+ ring->pipe;
+
+	/* type-2 packets are deprecated on MEC, use type-3 instead */
+	r = amdgpu_ring_init(adev, ring, 1024,
+			&adev->gfx.eop_irq, irq_type);
+	if (r)
+		return r;
+
+
+	return 0;
+}
+
 static int gfx_v7_0_sw_init(void *handle)
 {
 	struct amdgpu_ring *ring;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-	int i, r, ring_id;
+	int i, j, k, r, ring_id;
 
 	/* EOP Event */
 	r = amdgpu_irq_add_id(adev, 181, &adev->gfx.eop_irq);
@@ -4779,39 +4810,24 @@ static int gfx_v7_0_sw_init(void *handle)
 			return r;
 	}
 
-	/* set up the compute queues */
-	for (i = 0, ring_id = 0; i < AMDGPU_MAX_QUEUES; i++) {
-		unsigned irq_type;
-
-		if (!test_bit(i, adev->gfx.mec.queue_bitmap))
-			continue;
-
-		ring = &adev->gfx.compute_ring[ring_id];
-
-		/* mec0 is me1 */
-		ring->me = ((i / adev->gfx.mec.num_queue_per_pipe)
-				/ adev->gfx.mec.num_pipe_per_mec)
-				+ 1;
-		ring->pipe = (i / adev->gfx.mec.num_queue_per_pipe)
-				% adev->gfx.mec.num_pipe_per_mec;
-		ring->queue = i % adev->gfx.mec.num_queue_per_pipe;
-
-		ring->ring_obj = NULL;
-		ring->use_doorbell = true;
-		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
-		sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
+	/* set up the compute queues - allocate horizontally across pipes */
+	ring_id = 0;
+	for (i = 0; i < adev->gfx.mec.num_pipe_per_mec; ++i) {
+		for (j = 0; j < adev->gfx.mec.num_queue_per_pipe; j++) {
+			for (k = 0; k < adev->gfx.mec.num_pipe_per_mec; k++) {
 
-		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
-			+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
-			+ ring->pipe;
+				if (!amdgpu_is_mec_queue_enabled(adev, i, k, j))
+					continue;
 
-		/* type-2 packets are deprecated on MEC, use type-3 instead */
-		r = amdgpu_ring_init(adev, ring, 1024,
-				     &adev->gfx.eop_irq, irq_type);
-		if (r)
-			return r;
+				r = gfx_v7_0_compute_ring_init(adev,
+								ring_id,
+								i, k, j);
+				if (r)
+					return r;
 
-		ring_id++;
+				ring_id++;
+			}
+		}
 	}
 
 	/* reserve GDS, GWS and OA resource for gfx */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 861334b..edddd86 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -2122,9 +2122,42 @@ static int gfx_v8_0_gpu_early_init(struct amdgpu_device *adev)
 	return 0;
 }
 
+static int gfx_v8_0_compute_ring_init(struct amdgpu_device *adev, int ring_id,
+					int mec, int pipe, int queue)
+{
+	int r;
+	unsigned irq_type;
+	struct amdgpu_ring *ring = &adev->gfx.compute_ring[ring_id];
+
+	ring = &adev->gfx.compute_ring[ring_id];
+
+	/* mec0 is me1 */
+	ring->me = mec + 1;
+	ring->pipe = pipe;
+	ring->queue = queue;
+
+	ring->ring_obj = NULL;
+	ring->use_doorbell = true;
+	ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
+	sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
+
+	irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
+		+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
+		+ ring->pipe;
+
+	/* type-2 packets are deprecated on MEC, use type-3 instead */
+	r = amdgpu_ring_init(adev, ring, 1024,
+			&adev->gfx.eop_irq, irq_type);
+	if (r)
+		return r;
+
+
+	return 0;
+}
+
 static int gfx_v8_0_sw_init(void *handle)
 {
-	int i, r, ring_id;
+	int i, j, k, r, ring_id;
 	struct amdgpu_ring *ring;
 	struct amdgpu_kiq *kiq;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -2199,42 +2232,24 @@ static int gfx_v8_0_sw_init(void *handle)
 			return r;
 	}
 
-	/* set up the compute queues */
-	for (i = 0, ring_id = 0; i < AMDGPU_MAX_QUEUES; i++) {
-		unsigned irq_type;
-
-		if (!test_bit(i, adev->gfx.mec.queue_bitmap))
-			continue;
-
-		if (WARN_ON(ring_id >= AMDGPU_MAX_COMPUTE_RINGS))
-			break;
-
-		ring = &adev->gfx.compute_ring[ring_id];
-
-		/* mec0 is me1 */
-		ring->me = ((i / adev->gfx.mec.num_queue_per_pipe)
-				/ adev->gfx.mec.num_pipe_per_mec)
-				+ 1;
-		ring->pipe = (i / adev->gfx.mec.num_queue_per_pipe)
-				% adev->gfx.mec.num_pipe_per_mec;
-		ring->queue = i % adev->gfx.mec.num_queue_per_pipe;
-
-		ring->ring_obj = NULL;
-		ring->use_doorbell = true;
-		ring->doorbell_index = AMDGPU_DOORBELL_MEC_RING0 + ring_id;
-		sprintf(ring->name, "comp_%d.%d.%d", ring->me, ring->pipe, ring->queue);
+	/* set up the compute queues - allocate horizontally across pipes */
+	ring_id = 0;
+	for (i = 0; i < adev->gfx.mec.num_pipe_per_mec; ++i) {
+		for (j = 0; j < adev->gfx.mec.num_queue_per_pipe; j++) {
+			for (k = 0; k < adev->gfx.mec.num_pipe_per_mec; k++) {
 
-		irq_type = AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP
-			+ ((ring->me - 1) * adev->gfx.mec.num_pipe_per_mec)
-			+ ring->pipe;
+				if (!amdgpu_is_mec_queue_enabled(adev, i, k, j))
+					continue;
 
-		/* type-2 packets are deprecated on MEC, use type-3 instead */
-		r = amdgpu_ring_init(adev, ring, 1024, &adev->gfx.eop_irq,
-				     irq_type);
-		if (r)
-			return r;
+				r = gfx_v8_0_compute_ring_init(adev,
+								ring_id,
+								i, k, j);
+				if (r)
+					return r;
 
-		ring_id++;
+				ring_id++;
+			}
+		}
 	}
 
 	/* reserve GDS, GWS and OA resource for gfx */
-- 
2.9.3

_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 14/22] drm/amdgpu: new queue policy, take first 2 queues of each pipe

[Andres Rodriguez]

Instead of taking the first pipe and givint the rest to kfd, take the
first 2 queues of each pipe.

Effectively, amdgpu and amdkfd own the same number of queues. But
because the queues are spread over multiple pipes the hardware will be
able to better handle concurrent compute workloads.

amdgpu goes from 1 pipe to 4 pipes, i.e. from 1 compute threads to 4
amdkfd goes from 3 pipe to 4 pipes, i.e. from 3 compute threads to 4

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 3ca5519..b0b0c89 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2818,7 +2818,7 @@ static void gfx_v7_0_compute_queue_acquire(struct amdgpu_device *adev)
 			break;
 
 		/* policy: amdgpu owns all queues in the first pipe */
-		if (mec == 0 && pipe == 0)
+		if (mec == 0 && queue < 2)
 			set_bit(i, adev->gfx.mec.queue_bitmap);
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index edddd86..5db5bac 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1436,7 +1436,7 @@ static void gfx_v8_0_compute_queue_acquire(struct amdgpu_device *adev)
 			break;
 
 		/* policy: amdgpu owns all queues in the first pipe */
-		if (mec == 0 && pipe == 0)
+		if (mec == 0 && queue < 2)
 			set_bit(i, adev->gfx.mec.queue_bitmap);
 	}
 
-- 
2.9.3

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[PATCH 15/22] drm/amdgpu: add a mechanism to untie user ring ids from kernel ring ids

[Andres Rodriguez]

Add amdgpu_queue_mgr, a mechanism that allows disjointing usermode's
ring ids from the kernel's ring ids.

The queue manager maintains a per-file descriptor map of user ring ids
to amdgpu_ring pointers. Once a map is created it is permanent (this is
required to maintain FIFO execution guarantees for a context's ring).

Different queue map policies can be configured for each HW IP.
Currently all HW IPs use the identity mapper, i.e. kernel ring id is
equal to the user ring id.

The purpose of this mechanism is to distribute the load across multiple
queues more effectively for HW IPs that support multiple rings.
Userspace clients are unable to check whether a specific resource is in
use by a different client. Therefore, it is up to the kernel driver to
make the optimal choice.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/Makefile           |   2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  31 ++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |  70 ++++--------
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c       |   3 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c | 157 ++++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h |  75 ++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c      |  45 ++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h      |   2 +
 8 files changed, 333 insertions(+), 52 deletions(-)
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h

diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 2814aad..0081d0c 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -24,7 +24,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
 	atombios_encoders.o amdgpu_sa.o atombios_i2c.o \
 	amdgpu_prime.o amdgpu_vm.o amdgpu_ib.o amdgpu_pll.o \
 	amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o \
-	amdgpu_gtt_mgr.o amdgpu_vram_mgr.o amdgpu_virt.o
+	amdgpu_gtt_mgr.o amdgpu_vram_mgr.o amdgpu_virt.o amdgpu_queue_mgr.o
 
 # add asic specific block
 amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 377f58a..dc79c0e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -696,6 +696,31 @@ void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
 void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
 
 /*
+ * Queue manager related structures
+ */
+struct amdgpu_queue_mapper;
+
+struct amdgpu_queue_mapper_funcs {
+	/* map a userspace ring id to a kernel ring id */
+	int (*map)(struct amdgpu_device *adev,
+		   struct amdgpu_queue_mapper *mapper,
+		   int ring,
+		   struct amdgpu_ring **out_ring);
+};
+
+struct amdgpu_queue_mapper {
+	struct amdgpu_queue_mapper_funcs *funcs;
+	int 		hw_ip;
+	struct mutex	lock;
+	/* protected by lock */
+	struct amdgpu_ring *queue_map[AMDGPU_MAX_RINGS];
+};
+
+struct amdgpu_queue_mgr {
+	struct amdgpu_queue_mapper mapper[AMDGPU_MAX_IP_NUM];
+};
+
+/*
  * file private structure
  */
 
@@ -704,6 +729,7 @@ struct amdgpu_fpriv {
 	struct mutex		bo_list_lock;
 	struct idr		bo_list_handles;
 	struct amdgpu_ctx_mgr	ctx_mgr;
+	struct amdgpu_queue_mgr queue_mgr;
 };
 
 /*
@@ -1730,8 +1756,9 @@ bool amdgpu_need_post(struct amdgpu_device *adev);
 void amdgpu_update_display_priority(struct amdgpu_device *adev);
 
 int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
-int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
-		       u32 ip_instance, u32 ring,
+int amdgpu_cs_get_ring(struct amdgpu_device *adev,
+		       struct amdgpu_queue_mgr *mgr,
+		       u32 ip_type, u32 ip_instance, u32 user_ring,
 		       struct amdgpu_ring **out_ring);
 void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes);
 void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 57301f5..605d40e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -29,60 +29,28 @@
 #include <drm/amdgpu_drm.h>
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
+#include "amdgpu_queue_mgr.h"
 
-int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
-		       u32 ip_instance, u32 ring,
+int amdgpu_cs_get_ring(struct amdgpu_device *adev,
+		       struct amdgpu_queue_mgr *mgr,
+		       u32 ip_type, u32 ip_instance, u32 user_ring,
 		       struct amdgpu_ring **out_ring)
 {
+	int r;
+
 	/* Right now all IPs have only one instance - multiple rings. */
 	if (ip_instance != 0) {
 		DRM_ERROR("invalid ip instance: %d\n", ip_instance);
 		return -EINVAL;
 	}
 
-	switch (ip_type) {
-	default:
-		DRM_ERROR("unknown ip type: %d\n", ip_type);
-		return -EINVAL;
-	case AMDGPU_HW_IP_GFX:
-		if (ring < adev->gfx.num_gfx_rings) {
-			*out_ring = &adev->gfx.gfx_ring[ring];
-		} else {
-			DRM_ERROR("only %d gfx rings are supported now\n",
-				  adev->gfx.num_gfx_rings);
-			return -EINVAL;
-		}
-		break;
-	case AMDGPU_HW_IP_COMPUTE:
-		if (ring < adev->gfx.num_compute_rings) {
-			*out_ring = &adev->gfx.compute_ring[ring];
-		} else {
-			DRM_ERROR("only %d compute rings are supported now\n",
-				  adev->gfx.num_compute_rings);
-			return -EINVAL;
-		}
-		break;
-	case AMDGPU_HW_IP_DMA:
-		if (ring < adev->sdma.num_instances) {
-			*out_ring = &adev->sdma.instance[ring].ring;
-		} else {
-			DRM_ERROR("only %d SDMA rings are supported\n",
-				  adev->sdma.num_instances);
-			return -EINVAL;
-		}
-		break;
-	case AMDGPU_HW_IP_UVD:
-		*out_ring = &adev->uvd.ring;
-		break;
-	case AMDGPU_HW_IP_VCE:
-		if (ring < adev->vce.num_rings){
-			*out_ring = &adev->vce.ring[ring];
-		} else {
-			DRM_ERROR("only %d VCE rings are supported\n", adev->vce.num_rings);
-			return -EINVAL;
-		}
-		break;
+	r = amdgpu_queue_mgr_map(adev, mgr, ip_type, user_ring, out_ring);
+	if (r) {
+		DRM_ERROR("unable to map userspace ip:%d ring:%d to kernel ring\n",
+				ip_type, user_ring);
+		return r;
 	}
+
 	return 0;
 }
 
@@ -875,7 +843,7 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
 		if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
 			continue;
 
-		r = amdgpu_cs_get_ring(adev, chunk_ib->ip_type,
+		r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr, chunk_ib->ip_type,
 				       chunk_ib->ip_instance, chunk_ib->ring,
 				       &ring);
 		if (r)
@@ -979,7 +947,8 @@ static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
 			struct amdgpu_ctx *ctx;
 			struct dma_fence *fence;
 
-			r = amdgpu_cs_get_ring(adev, deps[j].ip_type,
+			r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr,
+					       deps[j].ip_type,
 					       deps[j].ip_instance,
 					       deps[j].ring, &ring);
 			if (r)
@@ -1106,6 +1075,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
 			 struct drm_file *filp)
 {
+	struct amdgpu_fpriv *fpriv = filp->driver_priv;
 	union drm_amdgpu_wait_cs *wait = data;
 	struct amdgpu_device *adev = dev->dev_private;
 	unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout);
@@ -1114,7 +1084,8 @@ int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
 	struct dma_fence *fence;
 	long r;
 
-	r = amdgpu_cs_get_ring(adev, wait->in.ip_type, wait->in.ip_instance,
+	r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr,
+			       wait->in.ip_type, wait->in.ip_instance,
 			       wait->in.ring, &ring);
 	if (r)
 		return r;
@@ -1156,10 +1127,11 @@ static struct dma_fence *amdgpu_cs_get_fence(struct amdgpu_device *adev,
 	struct amdgpu_ring *ring;
 	struct amdgpu_ctx *ctx;
 	struct dma_fence *fence;
+	struct amdgpu_fpriv *fpriv = filp->driver_priv;
 	int r;
 
-	r = amdgpu_cs_get_ring(adev, user->ip_type, user->ip_instance,
-			       user->ring, &ring);
+	r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr, user->ip_type,
+			       user->ip_instance, user->ring, &ring);
 	if (r)
 		return ERR_PTR(r);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 61d94c7..0932ade 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -30,6 +30,7 @@
 #include <drm/amdgpu_drm.h>
 #include "amdgpu_uvd.h"
 #include "amdgpu_vce.h"
+#include "amdgpu_queue_mgr.h"
 
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
@@ -665,6 +666,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 	idr_init(&fpriv->bo_list_handles);
 
 	amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
+	amdgpu_queue_mgr_init(adev, &fpriv->queue_mgr);
 
 	file_priv->driver_priv = fpriv;
 
@@ -694,6 +696,7 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
 	if (!fpriv)
 		return;
 
+	amdgpu_queue_mgr_fini(adev, &fpriv->queue_mgr);
 	amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr);
 
 	amdgpu_uvd_free_handles(adev, file_priv);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
new file mode 100644
index 0000000..3918bdb
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2017 Valve Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Andres Rodriguez
+ */
+
+#include "amdgpu_ring.h"
+#include "amdgpu_queue_mgr.h"
+
+static int amdgpu_queue_mapper_init(struct amdgpu_queue_mapper *mapper,
+				    int hw_ip,
+				    struct amdgpu_queue_mapper_funcs *funcs)
+{
+	if (!mapper || !funcs)
+		return -EINVAL;
+
+	if (hw_ip > AMDGPU_MAX_IP_NUM)
+		return -EINVAL;
+
+	mapper->hw_ip = hw_ip;
+	mapper->funcs = funcs;
+	mutex_init(&mapper->lock);
+
+	memset(mapper->queue_map, 0, sizeof(mapper->queue_map));
+
+	return 0;
+}
+
+static struct amdgpu_ring *get_cached_map(struct amdgpu_queue_mapper *mapper,
+					  int ring)
+{
+	return mapper->queue_map[ring];
+}
+
+static int update_cached_map(struct amdgpu_queue_mapper *mapper,
+			     int ring, struct amdgpu_ring *pring)
+{
+	if (WARN_ON(mapper->queue_map[ring])) {
+		DRM_ERROR("Un-expected ring re-map\n");
+		return -EINVAL;
+	}
+
+	mapper->queue_map[ring] = pring;
+
+	return 0;
+}
+
+static int amdgpu_identity_map(struct amdgpu_device *adev,
+			       struct amdgpu_queue_mapper *mapper,
+			       int ring,
+			       struct amdgpu_ring **out_ring)
+{
+	switch (mapper->hw_ip) {
+	case AMDGPU_HW_IP_GFX:
+		*out_ring = &adev->gfx.gfx_ring[ring];
+		break;
+	case AMDGPU_HW_IP_COMPUTE:
+		*out_ring = &adev->gfx.compute_ring[ring];
+		break;
+	case AMDGPU_HW_IP_DMA:
+		*out_ring = &adev->sdma.instance[ring].ring;
+		break;
+	case AMDGPU_HW_IP_UVD:
+		*out_ring = &adev->uvd.ring;
+		break;
+	case AMDGPU_HW_IP_VCE:
+		*out_ring = &adev->vce.ring[ring];
+		break;
+	default:
+		*out_ring = NULL;
+		DRM_ERROR("unknown HW IP type: %d\n", mapper->hw_ip);
+		return -EINVAL;
+	}
+
+	return update_cached_map(mapper, ring, *out_ring);
+}
+
+static struct amdgpu_queue_mapper_funcs identity_mapper = {
+	.map = amdgpu_identity_map
+};
+
+int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
+			  struct amdgpu_queue_mgr *mgr)
+{
+	int i;
+
+	if (!adev || !mgr)
+		return -EINVAL;
+
+	memset(mgr, 0, sizeof(*mgr));
+
+	for (i = 0; i < AMDGPU_MAX_IP_NUM; ++i)
+		amdgpu_queue_mapper_init(&mgr->mapper[i], i, &identity_mapper);
+
+	return 0;
+}
+
+int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
+			  struct amdgpu_queue_mgr *mgr)
+{
+	return 0;
+}
+
+int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
+			 struct amdgpu_queue_mgr *mgr,
+			 int hw_ip, int ring,
+			 struct amdgpu_ring **out_ring)
+{
+	int r;
+	struct amdgpu_queue_mapper *mapper = &mgr->mapper[hw_ip];
+
+	if (!adev || !mgr || !out_ring)
+		return -EINVAL;
+
+	if (hw_ip >= AMDGPU_MAX_IP_NUM)
+		return -EINVAL;
+
+	if (ring >= AMDGPU_MAX_RINGS)
+		return -EINVAL;
+
+	r = amdgpu_ring_is_valid_index(adev, hw_ip, ring);
+	if (r)
+		return r;
+
+	mutex_lock(&mapper->lock);
+
+	*out_ring = get_cached_map(mapper, ring);
+	if (*out_ring) {
+		/* cache hit */
+		r = 0;
+		goto out_unlock;
+	}
+
+	r = mapper->funcs->map(adev, mapper, ring, out_ring);
+
+out_unlock:
+	mutex_unlock(&mapper->lock);
+	return r;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h
new file mode 100644
index 0000000..a85bb32
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2017 Valve Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * 	Andres Rodriguez <andresx7@gmail.com>
+ */
+
+#ifndef __AMDGPU_QUEUE_MGR_H__
+#define __AMDGPU_QUEUE_MGR_H__
+
+#include "amdgpu.h"
+
+/**
+ * amdgpu_queue_mgr_init - init an amdgpu_queue_mgr struct
+ *
+ * @adev: amdgpu_device pointer
+ * @mgr: amdgpu_queue_mgr structure holding queue information
+ *
+ * Initialize the the selected @mgr (all asics).
+ *
+ * Returns 0 on success, error on failure.
+ */
+int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
+			  struct amdgpu_queue_mgr *mgr);
+
+/**
+ * amdgpu_queue_mgr_fini - de-initialize an amdgpu_queue_mgr struct
+ *
+ * @adev: amdgpu_device pointer
+ * @mgr: amdgpu_queue_mgr structure holding queue information
+ *
+ * De-initialize the the selected @mgr (all asics).
+ *
+ * Returns 0 on success, error on failure.
+ */
+int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
+			  struct amdgpu_queue_mgr *mgr);
+
+/**
+ * amdgpu_queue_mgr_map - Map a userspace ring id to an amdgpu_ring
+ *
+ * @adev: amdgpu_device pointer
+ * @mgr: amdgpu_queue_mgr structure holding queue information
+ * @hw_ip: HW IP enum
+ * @ring: user ring id
+ * @our_ring: pointer to mapped amdgpu_ring
+ *
+ * Map a userspace ring id to an appropriate kernel ring. Different
+ * policies are configurable at a HW IP level.
+ *
+ * Returns 0 on success, error on failure.
+ */
+int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
+			 struct amdgpu_queue_mgr *mgr,
+			 int hw_ip, int ring,
+			 struct amdgpu_ring **out_ring);
+#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 7c842b7..43cd539 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -52,6 +52,51 @@ static int amdgpu_debugfs_ring_init(struct amdgpu_device *adev,
 static void amdgpu_debugfs_ring_fini(struct amdgpu_ring *ring);
 
 /**
+ * amdgpu_ring_is_valid_index - check if a ring idex is valid for a HW IP
+ *
+ * @adev: amdgpu_device pointer
+ * @ip_type: The HW IP to check against
+ * @ring: the ring index
+ *
+ * Check if @ring is a valid index for @ip_type (all asics).
+ * Returns 0 on success, error on failure.
+ */
+int amdgpu_ring_is_valid_index(struct amdgpu_device *adev,
+			       int ip_type, int ring)
+{
+	int ip_num_rings;
+
+	switch (ip_type) {
+	case AMDGPU_HW_IP_GFX:
+		ip_num_rings = adev->gfx.num_gfx_rings;
+		break;
+	case AMDGPU_HW_IP_COMPUTE:
+		ip_num_rings = adev->gfx.num_compute_rings;
+		break;
+	case AMDGPU_HW_IP_DMA:
+		ip_num_rings = adev->sdma.num_instances;
+		break;
+	case AMDGPU_HW_IP_UVD:
+		ip_num_rings = 1;
+		break;
+	case AMDGPU_HW_IP_VCE:
+		ip_num_rings = adev->vce.num_rings;
+		break;
+	default:
+		DRM_ERROR("unknown ip type: %d\n", ip_type);
+		return -EINVAL;
+	}
+
+	if (ring >= ip_num_rings) {
+		DRM_ERROR("Ring index:%d exceeds maximum:%d for ip:%d\n",
+				ring, ip_num_rings, ip_type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
  * amdgpu_ring_alloc - allocate space on the ring buffer
  *
  * @adev: amdgpu_device pointer
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 2345b398..35da5c5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -175,6 +175,8 @@ struct amdgpu_ring {
 #endif
 };
 
+int amdgpu_ring_is_valid_index(struct amdgpu_device *adev,
+			       int hw_ip, int ring);
 int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
 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);
-- 
2.9.3

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH 15/22] drm/amdgpu: add a mechanism to untie user ring ids from kernel ring ids

[Christian König]

Am 02.03.2017 um 09:02 schrieb Andres Rodriguez:
> Add amdgpu_queue_mgr, a mechanism that allows disjointing usermode's
> ring ids from the kernel's ring ids.
>
> The queue manager maintains a per-file descriptor map of user ring ids
> to amdgpu_ring pointers. Once a map is created it is permanent (this is
> required to maintain FIFO execution guarantees for a context's ring).
>
> Different queue map policies can be configured for each HW IP.
> Currently all HW IPs use the identity mapper, i.e. kernel ring id is
> equal to the user ring id.
>
> The purpose of this mechanism is to distribute the load across multiple
> queues more effectively for HW IPs that support multiple rings.
> Userspace clients are unable to check whether a specific resource is in
> use by a different client. Therefore, it is up to the kernel driver to
> make the optimal choice.
>
> Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/Makefile           |   2 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  31 ++++-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |  70 ++++--------
>   drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c       |   3 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c | 157 ++++++++++++++++++++++++++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h |  75 ++++++++++++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c      |  45 ++++++++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h      |   2 +
>   8 files changed, 333 insertions(+), 52 deletions(-)
>   create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
>   create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
> index 2814aad..0081d0c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -24,7 +24,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
>   	atombios_encoders.o amdgpu_sa.o atombios_i2c.o \
>   	amdgpu_prime.o amdgpu_vm.o amdgpu_ib.o amdgpu_pll.o \
>   	amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o \
> -	amdgpu_gtt_mgr.o amdgpu_vram_mgr.o amdgpu_virt.o
> +	amdgpu_gtt_mgr.o amdgpu_vram_mgr.o amdgpu_virt.o amdgpu_queue_mgr.o
>   
>   # add asic specific block
>   amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 377f58a..dc79c0e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -696,6 +696,31 @@ void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
>   void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
>   
>   /*
> + * Queue manager related structures
> + */
> +struct amdgpu_queue_mapper;
> +
> +struct amdgpu_queue_mapper_funcs {
> +	/* map a userspace ring id to a kernel ring id */
> +	int (*map)(struct amdgpu_device *adev,
> +		   struct amdgpu_queue_mapper *mapper,
> +		   int ring,
> +		   struct amdgpu_ring **out_ring);
> +};

Don't add indirection if you don't abstract any hardware difference with it.

Just call the appropriate mapping function directly based on the ring type.

Regards,
Christian.

> +
> +struct amdgpu_queue_mapper {
> +	struct amdgpu_queue_mapper_funcs *funcs;
> +	int 		hw_ip;
> +	struct mutex	lock;
> +	/* protected by lock */
> +	struct amdgpu_ring *queue_map[AMDGPU_MAX_RINGS];
> +};
> +
> +struct amdgpu_queue_mgr {
> +	struct amdgpu_queue_mapper mapper[AMDGPU_MAX_IP_NUM];
> +};
> +
> +/*
>    * file private structure
>    */
>   
> @@ -704,6 +729,7 @@ struct amdgpu_fpriv {
>   	struct mutex		bo_list_lock;
>   	struct idr		bo_list_handles;
>   	struct amdgpu_ctx_mgr	ctx_mgr;
> +	struct amdgpu_queue_mgr queue_mgr;
>   };
>   
>   /*
> @@ -1730,8 +1756,9 @@ bool amdgpu_need_post(struct amdgpu_device *adev);
>   void amdgpu_update_display_priority(struct amdgpu_device *adev);
>   
>   int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
> -int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
> -		       u32 ip_instance, u32 ring,
> +int amdgpu_cs_get_ring(struct amdgpu_device *adev,
> +		       struct amdgpu_queue_mgr *mgr,
> +		       u32 ip_type, u32 ip_instance, u32 user_ring,
>   		       struct amdgpu_ring **out_ring);
>   void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes);
>   void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index 57301f5..605d40e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -29,60 +29,28 @@
>   #include <drm/amdgpu_drm.h>
>   #include "amdgpu.h"
>   #include "amdgpu_trace.h"
> +#include "amdgpu_queue_mgr.h"
>   
> -int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
> -		       u32 ip_instance, u32 ring,
> +int amdgpu_cs_get_ring(struct amdgpu_device *adev,
> +		       struct amdgpu_queue_mgr *mgr,
> +		       u32 ip_type, u32 ip_instance, u32 user_ring,
>   		       struct amdgpu_ring **out_ring)
>   {
> +	int r;
> +
>   	/* Right now all IPs have only one instance - multiple rings. */
>   	if (ip_instance != 0) {
>   		DRM_ERROR("invalid ip instance: %d\n", ip_instance);
>   		return -EINVAL;
>   	}
>   
> -	switch (ip_type) {
> -	default:
> -		DRM_ERROR("unknown ip type: %d\n", ip_type);
> -		return -EINVAL;
> -	case AMDGPU_HW_IP_GFX:
> -		if (ring < adev->gfx.num_gfx_rings) {
> -			*out_ring = &adev->gfx.gfx_ring[ring];
> -		} else {
> -			DRM_ERROR("only %d gfx rings are supported now\n",
> -				  adev->gfx.num_gfx_rings);
> -			return -EINVAL;
> -		}
> -		break;
> -	case AMDGPU_HW_IP_COMPUTE:
> -		if (ring < adev->gfx.num_compute_rings) {
> -			*out_ring = &adev->gfx.compute_ring[ring];
> -		} else {
> -			DRM_ERROR("only %d compute rings are supported now\n",
> -				  adev->gfx.num_compute_rings);
> -			return -EINVAL;
> -		}
> -		break;
> -	case AMDGPU_HW_IP_DMA:
> -		if (ring < adev->sdma.num_instances) {
> -			*out_ring = &adev->sdma.instance[ring].ring;
> -		} else {
> -			DRM_ERROR("only %d SDMA rings are supported\n",
> -				  adev->sdma.num_instances);
> -			return -EINVAL;
> -		}
> -		break;
> -	case AMDGPU_HW_IP_UVD:
> -		*out_ring = &adev->uvd.ring;
> -		break;
> -	case AMDGPU_HW_IP_VCE:
> -		if (ring < adev->vce.num_rings){
> -			*out_ring = &adev->vce.ring[ring];
> -		} else {
> -			DRM_ERROR("only %d VCE rings are supported\n", adev->vce.num_rings);
> -			return -EINVAL;
> -		}
> -		break;
> +	r = amdgpu_queue_mgr_map(adev, mgr, ip_type, user_ring, out_ring);
> +	if (r) {
> +		DRM_ERROR("unable to map userspace ip:%d ring:%d to kernel ring\n",
> +				ip_type, user_ring);
> +		return r;
>   	}
> +
>   	return 0;
>   }
>   
> @@ -875,7 +843,7 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
>   		if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
>   			continue;
>   
> -		r = amdgpu_cs_get_ring(adev, chunk_ib->ip_type,
> +		r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr, chunk_ib->ip_type,
>   				       chunk_ib->ip_instance, chunk_ib->ring,
>   				       &ring);
>   		if (r)
> @@ -979,7 +947,8 @@ static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
>   			struct amdgpu_ctx *ctx;
>   			struct dma_fence *fence;
>   
> -			r = amdgpu_cs_get_ring(adev, deps[j].ip_type,
> +			r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr,
> +					       deps[j].ip_type,
>   					       deps[j].ip_instance,
>   					       deps[j].ring, &ring);
>   			if (r)
> @@ -1106,6 +1075,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
>   int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
>   			 struct drm_file *filp)
>   {
> +	struct amdgpu_fpriv *fpriv = filp->driver_priv;
>   	union drm_amdgpu_wait_cs *wait = data;
>   	struct amdgpu_device *adev = dev->dev_private;
>   	unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout);
> @@ -1114,7 +1084,8 @@ int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
>   	struct dma_fence *fence;
>   	long r;
>   
> -	r = amdgpu_cs_get_ring(adev, wait->in.ip_type, wait->in.ip_instance,
> +	r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr,
> +			       wait->in.ip_type, wait->in.ip_instance,
>   			       wait->in.ring, &ring);
>   	if (r)
>   		return r;
> @@ -1156,10 +1127,11 @@ static struct dma_fence *amdgpu_cs_get_fence(struct amdgpu_device *adev,
>   	struct amdgpu_ring *ring;
>   	struct amdgpu_ctx *ctx;
>   	struct dma_fence *fence;
> +	struct amdgpu_fpriv *fpriv = filp->driver_priv;
>   	int r;
>   
> -	r = amdgpu_cs_get_ring(adev, user->ip_type, user->ip_instance,
> -			       user->ring, &ring);
> +	r = amdgpu_cs_get_ring(adev, &fpriv->queue_mgr, user->ip_type,
> +			       user->ip_instance, user->ring, &ring);
>   	if (r)
>   		return ERR_PTR(r);
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> index 61d94c7..0932ade 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> @@ -30,6 +30,7 @@
>   #include <drm/amdgpu_drm.h>
>   #include "amdgpu_uvd.h"
>   #include "amdgpu_vce.h"
> +#include "amdgpu_queue_mgr.h"
>   
>   #include <linux/vga_switcheroo.h>
>   #include <linux/slab.h>
> @@ -665,6 +666,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
>   	idr_init(&fpriv->bo_list_handles);
>   
>   	amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
> +	amdgpu_queue_mgr_init(adev, &fpriv->queue_mgr);
>   
>   	file_priv->driver_priv = fpriv;
>   
> @@ -694,6 +696,7 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
>   	if (!fpriv)
>   		return;
>   
> +	amdgpu_queue_mgr_fini(adev, &fpriv->queue_mgr);
>   	amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr);
>   
>   	amdgpu_uvd_free_handles(adev, file_priv);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
> new file mode 100644
> index 0000000..3918bdb
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
> @@ -0,0 +1,157 @@
> +/*
> + * Copyright 2017 Valve Corporation
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Andres Rodriguez
> + */
> +
> +#include "amdgpu_ring.h"
> +#include "amdgpu_queue_mgr.h"
> +
> +static int amdgpu_queue_mapper_init(struct amdgpu_queue_mapper *mapper,
> +				    int hw_ip,
> +				    struct amdgpu_queue_mapper_funcs *funcs)
> +{
> +	if (!mapper || !funcs)
> +		return -EINVAL;
> +
> +	if (hw_ip > AMDGPU_MAX_IP_NUM)
> +		return -EINVAL;
> +
> +	mapper->hw_ip = hw_ip;
> +	mapper->funcs = funcs;
> +	mutex_init(&mapper->lock);
> +
> +	memset(mapper->queue_map, 0, sizeof(mapper->queue_map));
> +
> +	return 0;
> +}
> +
> +static struct amdgpu_ring *get_cached_map(struct amdgpu_queue_mapper *mapper,
> +					  int ring)
> +{
> +	return mapper->queue_map[ring];
> +}
> +
> +static int update_cached_map(struct amdgpu_queue_mapper *mapper,
> +			     int ring, struct amdgpu_ring *pring)
> +{
> +	if (WARN_ON(mapper->queue_map[ring])) {
> +		DRM_ERROR("Un-expected ring re-map\n");
> +		return -EINVAL;
> +	}
> +
> +	mapper->queue_map[ring] = pring;
> +
> +	return 0;
> +}
> +
> +static int amdgpu_identity_map(struct amdgpu_device *adev,
> +			       struct amdgpu_queue_mapper *mapper,
> +			       int ring,
> +			       struct amdgpu_ring **out_ring)
> +{
> +	switch (mapper->hw_ip) {
> +	case AMDGPU_HW_IP_GFX:
> +		*out_ring = &adev->gfx.gfx_ring[ring];
> +		break;
> +	case AMDGPU_HW_IP_COMPUTE:
> +		*out_ring = &adev->gfx.compute_ring[ring];
> +		break;
> +	case AMDGPU_HW_IP_DMA:
> +		*out_ring = &adev->sdma.instance[ring].ring;
> +		break;
> +	case AMDGPU_HW_IP_UVD:
> +		*out_ring = &adev->uvd.ring;
> +		break;
> +	case AMDGPU_HW_IP_VCE:
> +		*out_ring = &adev->vce.ring[ring];
> +		break;
> +	default:
> +		*out_ring = NULL;
> +		DRM_ERROR("unknown HW IP type: %d\n", mapper->hw_ip);
> +		return -EINVAL;
> +	}
> +
> +	return update_cached_map(mapper, ring, *out_ring);
> +}
> +
> +static struct amdgpu_queue_mapper_funcs identity_mapper = {
> +	.map = amdgpu_identity_map
> +};
> +
> +int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
> +			  struct amdgpu_queue_mgr *mgr)
> +{
> +	int i;
> +
> +	if (!adev || !mgr)
> +		return -EINVAL;
> +
> +	memset(mgr, 0, sizeof(*mgr));
> +
> +	for (i = 0; i < AMDGPU_MAX_IP_NUM; ++i)
> +		amdgpu_queue_mapper_init(&mgr->mapper[i], i, &identity_mapper);
> +
> +	return 0;
> +}
> +
> +int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
> +			  struct amdgpu_queue_mgr *mgr)
> +{
> +	return 0;
> +}
> +
> +int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
> +			 struct amdgpu_queue_mgr *mgr,
> +			 int hw_ip, int ring,
> +			 struct amdgpu_ring **out_ring)
> +{
> +	int r;
> +	struct amdgpu_queue_mapper *mapper = &mgr->mapper[hw_ip];
> +
> +	if (!adev || !mgr || !out_ring)
> +		return -EINVAL;
> +
> +	if (hw_ip >= AMDGPU_MAX_IP_NUM)
> +		return -EINVAL;
> +
> +	if (ring >= AMDGPU_MAX_RINGS)
> +		return -EINVAL;
> +
> +	r = amdgpu_ring_is_valid_index(adev, hw_ip, ring);
> +	if (r)
> +		return r;
> +
> +	mutex_lock(&mapper->lock);
> +
> +	*out_ring = get_cached_map(mapper, ring);
> +	if (*out_ring) {
> +		/* cache hit */
> +		r = 0;
> +		goto out_unlock;
> +	}
> +
> +	r = mapper->funcs->map(adev, mapper, ring, out_ring);
> +
> +out_unlock:
> +	mutex_unlock(&mapper->lock);
> +	return r;
> +}
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h
> new file mode 100644
> index 0000000..a85bb32
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.h
> @@ -0,0 +1,75 @@
> +/*
> + * Copyright 2017 Valve Corporation
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors:
> + * 	Andres Rodriguez <andresx7@gmail.com>
> + */
> +
> +#ifndef __AMDGPU_QUEUE_MGR_H__
> +#define __AMDGPU_QUEUE_MGR_H__
> +
> +#include "amdgpu.h"
> +
> +/**
> + * amdgpu_queue_mgr_init - init an amdgpu_queue_mgr struct
> + *
> + * @adev: amdgpu_device pointer
> + * @mgr: amdgpu_queue_mgr structure holding queue information
> + *
> + * Initialize the the selected @mgr (all asics).
> + *
> + * Returns 0 on success, error on failure.
> + */
> +int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
> +			  struct amdgpu_queue_mgr *mgr);
> +
> +/**
> + * amdgpu_queue_mgr_fini - de-initialize an amdgpu_queue_mgr struct
> + *
> + * @adev: amdgpu_device pointer
> + * @mgr: amdgpu_queue_mgr structure holding queue information
> + *
> + * De-initialize the the selected @mgr (all asics).
> + *
> + * Returns 0 on success, error on failure.
> + */
> +int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
> +			  struct amdgpu_queue_mgr *mgr);
> +
> +/**
> + * amdgpu_queue_mgr_map - Map a userspace ring id to an amdgpu_ring
> + *
> + * @adev: amdgpu_device pointer
> + * @mgr: amdgpu_queue_mgr structure holding queue information
> + * @hw_ip: HW IP enum
> + * @ring: user ring id
> + * @our_ring: pointer to mapped amdgpu_ring
> + *
> + * Map a userspace ring id to an appropriate kernel ring. Different
> + * policies are configurable at a HW IP level.
> + *
> + * Returns 0 on success, error on failure.
> + */
> +int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
> +			 struct amdgpu_queue_mgr *mgr,
> +			 int hw_ip, int ring,
> +			 struct amdgpu_ring **out_ring);
> +#endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> index 7c842b7..43cd539 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> @@ -52,6 +52,51 @@ static int amdgpu_debugfs_ring_init(struct amdgpu_device *adev,
>   static void amdgpu_debugfs_ring_fini(struct amdgpu_ring *ring);
>   
>   /**
> + * amdgpu_ring_is_valid_index - check if a ring idex is valid for a HW IP
> + *
> + * @adev: amdgpu_device pointer
> + * @ip_type: The HW IP to check against
> + * @ring: the ring index
> + *
> + * Check if @ring is a valid index for @ip_type (all asics).
> + * Returns 0 on success, error on failure.
> + */
> +int amdgpu_ring_is_valid_index(struct amdgpu_device *adev,
> +			       int ip_type, int ring)
> +{
> +	int ip_num_rings;
> +
> +	switch (ip_type) {
> +	case AMDGPU_HW_IP_GFX:
> +		ip_num_rings = adev->gfx.num_gfx_rings;
> +		break;
> +	case AMDGPU_HW_IP_COMPUTE:
> +		ip_num_rings = adev->gfx.num_compute_rings;
> +		break;
> +	case AMDGPU_HW_IP_DMA:
> +		ip_num_rings = adev->sdma.num_instances;
> +		break;
> +	case AMDGPU_HW_IP_UVD:
> +		ip_num_rings = 1;
> +		break;
> +	case AMDGPU_HW_IP_VCE:
> +		ip_num_rings = adev->vce.num_rings;
> +		break;
> +	default:
> +		DRM_ERROR("unknown ip type: %d\n", ip_type);
> +		return -EINVAL;
> +	}
> +
> +	if (ring >= ip_num_rings) {
> +		DRM_ERROR("Ring index:%d exceeds maximum:%d for ip:%d\n",
> +				ring, ip_num_rings, ip_type);
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +
> +/**
>    * amdgpu_ring_alloc - allocate space on the ring buffer
>    *
>    * @adev: amdgpu_device pointer
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> index 2345b398..35da5c5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> @@ -175,6 +175,8 @@ struct amdgpu_ring {
>   #endif
>   };
>   
> +int amdgpu_ring_is_valid_index(struct amdgpu_device *adev,
> +			       int hw_ip, int ring);
>   int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
>   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);


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[PATCH 16/22] drm/amdgpu: implement lru amdgpu_queue_mgr policy for compute v2

[Andres Rodriguez]

Use an LRU policy to map usermode rings to HW compute queues.

Most compute clients use one queue, and usually the first queue
available. This results in poor pipe/queue work distribution when
multiple compute apps are running. In most cases pipe 0 queue 0 is
the only queue that gets used.

In order to better distribute work across multiple HW queues, we adopt
a policy to map the usermode ring ids to the LRU HW queue.

This fixes a large majority of multi-app compute workloads sharing the
same HW queue, even though 7 other queues are available.

v2: use ring->funcs->type instead of ring->hw_ip

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  3 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    |  3 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c | 52 +++++++++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c      | 57 +++++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h      |  4 ++
 5 files changed, 117 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index dc79c0e..a4c16a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1517,6 +1517,9 @@ struct amdgpu_device {
 	/* link all gtt */
 	spinlock_t			gtt_list_lock;
 	struct list_head                gtt_list;
+	/* keep an lru list of rings by HW IP */
+	struct list_head                ring_lru_list;
+	struct mutex                    ring_lru_list_lock;
 
 	/* record hw reset is performed */
 	bool has_hw_reset;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 6abb238..954e3b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1719,6 +1719,9 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	INIT_LIST_HEAD(&adev->gtt_list);
 	spin_lock_init(&adev->gtt_list_lock);
 
+	INIT_LIST_HEAD(&adev->ring_lru_list);
+	mutex_init(&adev->ring_lru_list_lock);
+
 	if (adev->asic_type >= CHIP_BONAIRE) {
 		adev->rmmio_base = pci_resource_start(adev->pdev, 5);
 		adev->rmmio_size = pci_resource_len(adev->pdev, 5);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
index 3918bdb..0cf5d24 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
@@ -97,6 +97,44 @@ static struct amdgpu_queue_mapper_funcs identity_mapper = {
 	.map = amdgpu_identity_map
 };
 
+static enum amdgpu_ring_type amdgpu_hw_ip_to_ring_type(int hw_ip)
+{
+	switch (hw_ip) {
+	case AMDGPU_HW_IP_GFX:
+		return AMDGPU_RING_TYPE_GFX;
+	case AMDGPU_HW_IP_COMPUTE:
+		return AMDGPU_RING_TYPE_COMPUTE;
+	case AMDGPU_HW_IP_DMA:
+		return AMDGPU_RING_TYPE_SDMA;
+	case AMDGPU_HW_IP_UVD:
+		return AMDGPU_RING_TYPE_UVD;
+	case AMDGPU_HW_IP_VCE:
+		return AMDGPU_RING_TYPE_VCE;
+	default:
+		DRM_ERROR("Invalid HW IP specified %d\n", hw_ip);
+		return -1;
+	}
+}
+
+static int amdgpu_lru_map(struct amdgpu_device *adev,
+			  struct amdgpu_queue_mapper *mapper,
+			  int user_ring,
+			  struct amdgpu_ring **out_ring)
+{
+	int r;
+	int ring_type = amdgpu_hw_ip_to_ring_type(mapper->hw_ip);
+
+	r = amdgpu_ring_lru_get(adev, ring_type, out_ring);
+	if (r)
+		return r;
+
+	return update_cached_map(mapper, user_ring, *out_ring);
+}
+
+static struct amdgpu_queue_mapper_funcs lru_mapper = {
+	.map = amdgpu_lru_map
+};
+
 int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
 			  struct amdgpu_queue_mgr *mgr)
 {
@@ -107,8 +145,18 @@ int amdgpu_queue_mgr_init(struct amdgpu_device *adev,
 
 	memset(mgr, 0, sizeof(*mgr));
 
-	for (i = 0; i < AMDGPU_MAX_IP_NUM; ++i)
-		amdgpu_queue_mapper_init(&mgr->mapper[i], i, &identity_mapper);
+	for (i = 0; i < AMDGPU_MAX_IP_NUM; ++i) {
+		switch (i) {
+		case AMDGPU_HW_IP_COMPUTE:
+			amdgpu_queue_mapper_init(&mgr->mapper[i], i,
+						 &lru_mapper);
+			break;
+		default:
+			amdgpu_queue_mapper_init(&mgr->mapper[i], i,
+						 &identity_mapper);
+			break;
+		}
+	}
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 43cd539..31c6274 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -180,6 +180,8 @@ void amdgpu_ring_commit(struct amdgpu_ring *ring)
 
 	if (ring->funcs->end_use)
 		ring->funcs->end_use(ring);
+
+	amdgpu_ring_lru_touch(ring->adev, ring);
 }
 
 /**
@@ -279,6 +281,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 	}
 	ring->ptr_mask = (ring->ring_size / 4) - 1;
 	ring->max_dw = max_dw;
+	INIT_LIST_HEAD(&ring->lru_list);
+	amdgpu_ring_lru_touch(adev, ring);
 
 	if (amdgpu_debugfs_ring_init(adev, ring)) {
 		DRM_ERROR("Failed to register debugfs file for rings !\n");
@@ -312,6 +316,59 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
 	ring->adev->rings[ring->idx] = NULL;
 }
 
+/**
+ * amdgpu_ring_lru_get - get the least recently used ring for a HW IP block
+ *
+ * @adev: amdgpu_device pointer
+ * @type: amdgpu_ring_type enum
+ * @ring: output ring
+ *
+ * Retreive the amdgpu_ring structure for the least recently used ring of
+ * a specific IP block (all asics).
+ * Returns 0 on success, error on failure.
+ */
+int amdgpu_ring_lru_get(struct amdgpu_device *adev, int type,
+			struct amdgpu_ring **ring)
+{
+	struct amdgpu_ring *entry;
+
+	/* List is sorted in LRU order, find first entry corresponding
+	 * to the desired HW IP */
+	*ring = NULL;
+	mutex_lock(&adev->ring_lru_list_lock);
+	list_for_each_entry(entry, &adev->ring_lru_list, lru_list) {
+		if (entry->funcs->type == type) {
+			*ring = entry;
+			break;
+		}
+	}
+	mutex_unlock(&adev->ring_lru_list_lock);
+
+	if (!*ring) {
+		DRM_ERROR("Ring LRU contains no entries for ring type:%d\n", type);
+		return -EINVAL;
+	}
+
+	amdgpu_ring_lru_touch(adev, entry);
+	return 0;
+}
+
+/**
+ * amdgpu_ring_lru_touch - mark a ring as recently being used
+ *
+ * @adev: amdgpu_device pointer
+ * @ring: ring to touch
+ *
+ * Move @ring to the the tail of the lru list
+ */
+void amdgpu_ring_lru_touch(struct amdgpu_device *adev, struct amdgpu_ring *ring)
+{
+	/* list_move_tail handles the case where ring isn't part of the list */
+	mutex_lock(&adev->ring_lru_list_lock);
+	list_move_tail(&ring->lru_list, &adev->ring_lru_list);
+	mutex_unlock(&adev->ring_lru_list_lock);
+}
+
 /*
  * Debugfs info
  */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 35da5c5..b51bdcd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -144,6 +144,7 @@ struct amdgpu_ring {
 	const struct amdgpu_ring_funcs	*funcs;
 	struct amdgpu_fence_driver	fence_drv;
 	struct amd_gpu_scheduler	sched;
+	struct list_head		lru_list;
 
 	struct amdgpu_bo	*ring_obj;
 	volatile uint32_t	*ring;
@@ -186,5 +187,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		     unsigned ring_size, struct amdgpu_irq_src *irq_src,
 		     unsigned irq_type);
 void amdgpu_ring_fini(struct amdgpu_ring *ring);
+int amdgpu_ring_lru_get(struct amdgpu_device *adev, int hw_ip,
+			struct amdgpu_ring **ring);
+void amdgpu_ring_lru_touch(struct amdgpu_device *adev, struct amdgpu_ring *ring);
 
 #endif
-- 
2.9.3

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[PATCH 17/22] drm/amdgpu: add parameter to allocate high priority contexts v6

[Andres Rodriguez]

Add a new context creation parameter to express a global context priority.

Contexts allocated with AMDGPU_CTX_PRIORITY_HIGH will receive higher
priority to schedule their work than AMDGPU_CTX_PRIORITY_NORMAL
(default) contexts.

v2: Instead of using flags, repurpose __pad
v3: Swap enum values of _NORMAL _HIGH for backwards compatibility
v4: Validate usermode priority and store it
v5: Move priority validation into amdgpu_ctx_ioctl(), headline reword
v6: add UAPI note regarding priorities requiring CAP_SYS_ADMIN

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c       | 38 +++++++++++++++++++++++----
 drivers/gpu/drm/amd/scheduler/gpu_scheduler.h |  1 +
 include/uapi/drm/amdgpu_drm.h                 |  8 +++++-
 4 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index a4c16a8..f085698 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -671,6 +671,7 @@ struct amdgpu_ctx {
 	spinlock_t		ring_lock;
 	struct dma_fence	**fences;
 	struct amdgpu_ctx_ring	rings[AMDGPU_MAX_RINGS];
+	int			priority;
 	bool preamble_presented;
 };
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 400c66b..8ef6370 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -25,13 +25,22 @@
 #include <drm/drmP.h>
 #include "amdgpu.h"
 
-static int amdgpu_ctx_init(struct amdgpu_device *adev, struct amdgpu_ctx *ctx)
+static int amdgpu_ctx_init(struct amdgpu_device *adev,
+			   int priority,
+			   struct amdgpu_ctx *ctx)
 {
 	unsigned i, j;
 	int r;
 
+	if (priority < 0 || priority >= AMD_SCHED_MAX_PRIORITY)
+		return -EINVAL;
+
+	if (priority == AMD_SCHED_PRIORITY_HIGH && !capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
 	memset(ctx, 0, sizeof(*ctx));
 	ctx->adev = adev;
+	ctx->priority = priority;
 	kref_init(&ctx->refcount);
 	spin_lock_init(&ctx->ring_lock);
 	ctx->fences = kcalloc(amdgpu_sched_jobs * AMDGPU_MAX_RINGS,
@@ -51,7 +60,7 @@ static int amdgpu_ctx_init(struct amdgpu_device *adev, struct amdgpu_ctx *ctx)
 		struct amdgpu_ring *ring = adev->rings[i];
 		struct amd_sched_rq *rq;
 
-		rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
+		rq = &ring->sched.sched_rq[priority];
 		r = amd_sched_entity_init(&ring->sched, &ctx->rings[i].entity,
 					  rq, amdgpu_sched_jobs);
 		if (r)
@@ -90,6 +99,7 @@ static void amdgpu_ctx_fini(struct amdgpu_ctx *ctx)
 
 static int amdgpu_ctx_alloc(struct amdgpu_device *adev,
 			    struct amdgpu_fpriv *fpriv,
+			    uint32_t priority,
 			    uint32_t *id)
 {
 	struct amdgpu_ctx_mgr *mgr = &fpriv->ctx_mgr;
@@ -107,8 +117,9 @@ static int amdgpu_ctx_alloc(struct amdgpu_device *adev,
 		kfree(ctx);
 		return r;
 	}
+
 	*id = (uint32_t)r;
-	r = amdgpu_ctx_init(adev, ctx);
+	r = amdgpu_ctx_init(adev, priority, ctx);
 	if (r) {
 		idr_remove(&mgr->ctx_handles, *id);
 		*id = 0;
@@ -182,11 +193,24 @@ static int amdgpu_ctx_query(struct amdgpu_device *adev,
 	return 0;
 }
 
+static enum amd_sched_priority amdgpu_to_sched_priority(int amdgpu_priority)
+{
+	switch (amdgpu_priority) {
+	case AMDGPU_CTX_PRIORITY_HIGH:
+		return AMD_SCHED_PRIORITY_HIGH;
+	case AMDGPU_CTX_PRIORITY_NORMAL:
+		return AMD_SCHED_PRIORITY_NORMAL;
+	default:
+		WARN(1, "Invalid context priority %d\n", amdgpu_priority);
+		return AMD_SCHED_PRIORITY_NORMAL;
+	}
+}
+
 int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
 		     struct drm_file *filp)
 {
 	int r;
-	uint32_t id;
+	uint32_t id, priority;
 
 	union drm_amdgpu_ctx *args = data;
 	struct amdgpu_device *adev = dev->dev_private;
@@ -194,10 +218,14 @@ int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
 
 	r = 0;
 	id = args->in.ctx_id;
+	priority = amdgpu_to_sched_priority(args->in.priority);
+
+	if (priority >= AMD_SCHED_MAX_PRIORITY)
+		return -EINVAL;
 
 	switch (args->in.op) {
 	case AMDGPU_CTX_OP_ALLOC_CTX:
-		r = amdgpu_ctx_alloc(adev, fpriv, &id);
+		r = amdgpu_ctx_alloc(adev, fpriv, priority, &id);
 		args->out.alloc.ctx_id = id;
 		break;
 	case AMDGPU_CTX_OP_FREE_CTX:
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
index d8dc681..2e458de 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
@@ -108,6 +108,7 @@ struct amd_sched_backend_ops {
 
 enum amd_sched_priority {
 	AMD_SCHED_PRIORITY_KERNEL = 0,
+	AMD_SCHED_PRIORITY_HIGH,
 	AMD_SCHED_PRIORITY_NORMAL,
 	AMD_SCHED_MAX_PRIORITY
 };
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 5797283..423909e 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -160,13 +160,19 @@ union drm_amdgpu_bo_list {
 /* unknown cause */
 #define AMDGPU_CTX_UNKNOWN_RESET	3
 
+/* Context priority level */
+#define AMDGPU_CTX_PRIORITY_NORMAL	0
+/* Selecting a priority above NORMAL requires CAP_SYS_ADMIN */
+#define AMDGPU_CTX_PRIORITY_HIGH	1
+#define AMDGPU_CTX_PRIORITY_NUM		2
+
 struct drm_amdgpu_ctx_in {
 	/** AMDGPU_CTX_OP_* */
 	__u32	op;
 	/** For future use, no flags defined so far */
 	__u32	flags;
 	__u32	ctx_id;
-	__u32	_pad;
+	__u32	priority;
 };
 
 union drm_amdgpu_ctx_out {
-- 
2.9.3

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[PATCH 18/22] drm/amdgpu: add framework for HW specific priority settings v3

[Andres Rodriguez]

Add an initial framework for changing the HW priorities of rings. The
framework allows requesting priority changes for the lifetime of an
amdgpu_job. After the job completes the priority will decay to the next
lowest priority for which a request is still valid.

A new ring function set_priority() can now be populated to take care of
the HW specific programming sequence for priority changes.

v2: set priority before emitting IB, and take a ref on amdgpu_job
v3: use AMD_SCHED_PRIORITY_* instead of AMDGPU_CTX_PRIORITY_*

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h      |  4 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c  | 10 ++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 74 ++++++++++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 11 +++++
 5 files changed, 97 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index f085698..5fec076 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -643,7 +643,7 @@ struct amdgpu_ib {
 
 extern const struct amd_sched_backend_ops amdgpu_sched_ops;
 
-int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
+int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs, int priority,
 		     struct amdgpu_job **job, struct amdgpu_vm *vm);
 int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
 			     struct amdgpu_job **job);
@@ -997,6 +997,8 @@ struct amdgpu_job {
 	struct amdgpu_sync	sync;
 	struct amdgpu_ib	*ibs;
 	struct dma_fence	*fence; /* the hw fence */
+	struct dma_fence_cb	cb;
+	int			priority;
 	uint32_t		preamble_status;
 	uint32_t		num_ibs;
 	void			*owner;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 605d40e..19ce202 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -186,7 +186,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 		}
 	}
 
-	ret = amdgpu_job_alloc(p->adev, num_ibs, &p->job, vm);
+	ret = amdgpu_job_alloc(p->adev, num_ibs, p->ctx->priority, &p->job, vm);
 	if (ret)
 		goto free_all_kdata;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 86a1242..66b2e76 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -39,7 +39,7 @@ static void amdgpu_job_timedout(struct amd_sched_job *s_job)
 	amdgpu_gpu_reset(job->adev);
 }
 
-int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
+int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs, int priority,
 		     struct amdgpu_job **job, struct amdgpu_vm *vm)
 {
 	size_t size = sizeof(struct amdgpu_job);
@@ -55,6 +55,7 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
 
 	(*job)->adev = adev;
 	(*job)->vm = vm;
+	(*job)->priority = priority;
 	(*job)->ibs = (void *)&(*job)[1];
 	(*job)->num_ibs = num_ibs;
 
@@ -68,7 +69,7 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
 {
 	int r;
 
-	r = amdgpu_job_alloc(adev, 1, job, NULL);
+	r = amdgpu_job_alloc(adev, 1, AMD_SCHED_PRIORITY_NORMAL, job, NULL);
 	if (r)
 		return r;
 
@@ -169,6 +170,10 @@ static struct dma_fence *amdgpu_job_run(struct amd_sched_job *sched_job)
 
 	BUG_ON(amdgpu_sync_peek_fence(&job->sync, NULL));
 
+	r = amdgpu_ring_elevate_priority(job->ring, job->priority, job);
+	if (r)
+		DRM_ERROR("Failed to set job priority (%d)\n", r);
+
 	trace_amdgpu_sched_run_job(job);
 	r = amdgpu_ib_schedule(job->ring, job->num_ibs, job->ibs, job, &fence);
 	if (r)
@@ -177,6 +182,7 @@ static struct dma_fence *amdgpu_job_run(struct amd_sched_job *sched_job)
 	/* if gpu reset, hw fence will be replaced here */
 	dma_fence_put(job->fence);
 	job->fence = dma_fence_get(fence);
+
 	amdgpu_job_free_resources(job);
 	return fence;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 31c6274..9106ae3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -199,6 +199,78 @@ void amdgpu_ring_undo(struct amdgpu_ring *ring)
 		ring->funcs->end_use(ring);
 }
 
+static void amdgpu_ring_restore_priority_cb(struct dma_fence *f,
+					    struct dma_fence_cb *cb)
+{
+	int i;
+	struct amdgpu_job *cb_job =
+		container_of(cb, struct amdgpu_job, cb);
+	struct amdgpu_ring *ring = cb_job->ring;
+
+	spin_lock(&ring->priority_lock);
+
+	/* remove ourselves from the list if necessary */
+	if (cb_job == ring->last_job[cb_job->priority])
+		ring->last_job[cb_job->priority] = NULL;
+
+	/* something higher prio is executing, no need to decay */
+	if (ring->priority < cb_job->priority)
+		goto out_unlock;
+
+	/* decay priority to the next level with a job available */
+	for (i = cb_job->priority; i < AMD_SCHED_MAX_PRIORITY; i++) {
+		if (i == AMD_SCHED_PRIORITY_NORMAL || ring->last_job[i]) {
+			ring->priority = i;
+			if (ring->funcs->set_priority)
+				ring->funcs->set_priority(ring, i);
+
+			break;
+		}
+	}
+	amdgpu_job_put(&cb_job);
+
+out_unlock:
+	spin_unlock(&ring->priority_lock);
+}
+
+/**
+ * amdgpu_ring_elevate_priority - change the ring's priority
+ *
+ * @ring: amdgpu_ring structure holding the information
+ * @priority: target priority
+ * @job: priority should remain elevated for the duration of this job
+ *
+ * Use HW specific mechanism's to elevate the ring's priority while @job
+ * is executing. Once @job finishes executing, the ring will reset back
+ * to normal priority.
+ * Returns 0 on success, error otherwise
+ */
+int amdgpu_ring_elevate_priority(struct amdgpu_ring *ring, int priority,
+				 struct amdgpu_job *job)
+{
+	if (priority < 0 || priority >= AMD_SCHED_MAX_PRIORITY)
+		return -EINVAL;
+
+	spin_lock(&ring->priority_lock);
+	ring->last_job[priority] = job;
+
+	/* lower number means higher priority */
+	if (priority >= ring->priority)
+		goto out_unlock;
+
+	ring->priority = priority;
+	if (ring->funcs->set_priority)
+		ring->funcs->set_priority(ring, priority);
+
+	amdgpu_job_get(job);
+	dma_fence_add_callback(&job->base.s_fence->finished, &job->cb,
+			       amdgpu_ring_restore_priority_cb);
+
+out_unlock:
+	spin_unlock(&ring->priority_lock);
+	return 0;
+}
+
 /**
  * amdgpu_ring_init - init driver ring struct.
  *
@@ -281,6 +353,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 	}
 	ring->ptr_mask = (ring->ring_size / 4) - 1;
 	ring->max_dw = max_dw;
+	ring->priority = AMD_SCHED_PRIORITY_NORMAL;
+	spin_lock_init(&ring->priority_lock);
 	INIT_LIST_HEAD(&ring->lru_list);
 	amdgpu_ring_lru_touch(adev, ring);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index b51bdcd..0366e97 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -24,6 +24,7 @@
 #ifndef __AMDGPU_RING_H__
 #define __AMDGPU_RING_H__
 
+#include <drm/amdgpu_drm.h>
 #include "gpu_scheduler.h"
 
 /* max number of rings */
@@ -137,6 +138,8 @@ struct amdgpu_ring_funcs {
 	void (*emit_cntxcntl) (struct amdgpu_ring *ring, uint32_t flags);
 	void (*emit_rreg)(struct amdgpu_ring *ring, uint32_t reg);
 	void (*emit_wreg)(struct amdgpu_ring *ring, uint32_t reg, uint32_t val);
+	/* priority functions */
+	void (*set_priority) (struct amdgpu_ring *ring, int priority);
 };
 
 struct amdgpu_ring {
@@ -171,6 +174,12 @@ struct amdgpu_ring {
 	unsigned		cond_exe_offs;
 	u64			cond_exe_gpu_addr;
 	volatile u32		*cond_exe_cpu_addr;
+
+	spinlock_t		priority_lock;
+	/* protected by priority_lock */
+	struct amdgpu_job 	*last_job[AMD_SCHED_MAX_PRIORITY];
+	int			priority;
+
 #if defined(CONFIG_DEBUG_FS)
 	struct dentry *ent;
 #endif
@@ -183,6 +192,8 @@ 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);
+int amdgpu_ring_elevate_priority(struct amdgpu_ring *ring, int priority,
+				 struct amdgpu_job *job);
 int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		     unsigned ring_size, struct amdgpu_irq_src *irq_src,
 		     unsigned irq_type);
-- 
2.9.3

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 19/22] drm/amdgpu: make amdgpu_job refcounted

[Andres Rodriguez]

The job structure is shared between multiple components, gpu_scheduler
and amdgpu. Make each user hold its own reference to simplify resource
free-ing.

This will also be useful for adding extra callbacks on job completion.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h     |  4 +++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c  |  6 +++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 24 ++++++++++++++++++++----
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 29 ++++++++++++++---------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c |  6 ++----
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 18 +++++++-----------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c  | 23 ++++++++++-------------
 7 files changed, 59 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 5fec076..6fe10cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -649,7 +649,8 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
 			     struct amdgpu_job **job);
 
 void amdgpu_job_free_resources(struct amdgpu_job *job);
-void amdgpu_job_free(struct amdgpu_job *job);
+struct amdgpu_job *amdgpu_job_get(struct amdgpu_job *job);
+void amdgpu_job_put(struct amdgpu_job **job);
 int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		      struct amd_sched_entity *entity, void *owner,
 		      struct dma_fence **f);
@@ -991,6 +992,7 @@ struct amdgpu_cs_parser {
 
 struct amdgpu_job {
 	struct amd_sched_job    base;
+	struct kref		refcount;
 	struct amdgpu_device	*adev;
 	struct amdgpu_vm	*vm;
 	struct amdgpu_ring	*ring;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 19ce202..5e8431d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -714,7 +714,7 @@ static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error, bo
 		drm_free_large(parser->chunks[i].kdata);
 	kfree(parser->chunks);
 	if (parser->job)
-		amdgpu_job_free(parser->job);
+		amdgpu_job_put(&parser->job);
 	amdgpu_bo_unref(&parser->uf_entry.robj);
 }
 
@@ -988,11 +988,10 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	int r;
 
 	job = p->job;
-	p->job = NULL;
 
 	r = amd_sched_job_init(&job->base, &ring->sched, entity, p->filp);
 	if (r) {
-		amdgpu_job_free(job);
+		amdgpu_job_put(&job);
 		return r;
 	}
 
@@ -1004,6 +1003,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	amdgpu_job_free_resources(job);
 
 	trace_amdgpu_cs_ioctl(job);
+	amdgpu_job_get(job);
 	amd_sched_entity_push_job(&job->base);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 66b2e76..9b48e99 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -53,6 +53,7 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs, int priority,
 	if (!*job)
 		return -ENOMEM;
 
+	kref_init(&(*job)->refcount);
 	(*job)->adev = adev;
 	(*job)->vm = vm;
 	(*job)->priority = priority;
@@ -96,13 +97,14 @@ static void amdgpu_job_free_cb(struct amd_sched_job *s_job)
 {
 	struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base);
 
-	dma_fence_put(job->fence);
-	amdgpu_sync_free(&job->sync);
-	kfree(job);
+	amdgpu_job_put(&job);
 }
 
-void amdgpu_job_free(struct amdgpu_job *job)
+static void amdgpu_job_free(struct kref *ref)
 {
+	struct amdgpu_job *job;
+	job = container_of(ref, struct amdgpu_job, refcount);
+
 	amdgpu_job_free_resources(job);
 
 	dma_fence_put(job->fence);
@@ -110,6 +112,18 @@ void amdgpu_job_free(struct amdgpu_job *job)
 	kfree(job);
 }
 
+struct amdgpu_job *amdgpu_job_get(struct amdgpu_job *job)
+{
+	kref_get(&job->refcount);
+	return job;
+}
+
+void amdgpu_job_put(struct amdgpu_job **job)
+{
+	kref_put(&(*job)->refcount, amdgpu_job_free);
+	(*job) = NULL;
+}
+
 int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		      struct amd_sched_entity *entity, void *owner,
 		      struct dma_fence **f)
@@ -128,6 +142,8 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 	job->fence_ctx = entity->fence_context;
 	*f = dma_fence_get(&job->base.s_fence->finished);
 	amdgpu_job_free_resources(job);
+
+	amdgpu_job_get(job);
 	amd_sched_entity_push_job(&job->base);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 4c6094e..1e6e92a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1280,7 +1280,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring,
 				     AMDGPU_FENCE_OWNER_UNDEFINED);
 		if (r) {
 			DRM_ERROR("sync failed (%d).\n", r);
-			goto error_free;
+			goto out_unref;
 		}
 	}
 
@@ -1301,20 +1301,21 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring,
 		r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs,
 				       NULL, fence);
 		job->fence = dma_fence_get(*fence);
-		if (r)
+		if (r) {
 			DRM_ERROR("Error scheduling IBs (%d)\n", r);
-		amdgpu_job_free(job);
+			goto out_unref;
+		}
 	} else {
 		r = amdgpu_job_submit(job, ring, &adev->mman.entity,
 				      AMDGPU_FENCE_OWNER_UNDEFINED, fence);
-		if (r)
-			goto error_free;
+		if (r) {
+			DRM_ERROR("Error submitting job (%d)\n", r);
+			goto out_unref;
+		}
 	}
 
-	return r;
-
-error_free:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
@@ -1363,7 +1364,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 				     AMDGPU_FENCE_OWNER_UNDEFINED);
 		if (r) {
 			DRM_ERROR("sync failed (%d).\n", r);
-			goto error_free;
+			goto out_unref;
 		}
 	}
 
@@ -1398,12 +1399,10 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 	r = amdgpu_job_submit(job, ring, &adev->mman.entity,
 			      AMDGPU_FENCE_OWNER_UNDEFINED, fence);
 	if (r)
-		goto error_free;
-
-	return 0;
+		goto out_unref;
 
-error_free:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 6d6ab7f..3f307e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -980,8 +980,6 @@ static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 		job->fence = dma_fence_get(f);
 		if (r)
 			goto err_free;
-
-		amdgpu_job_free(job);
 	} else {
 		r = amdgpu_job_submit(job, ring, &adev->uvd.entity,
 				      AMDGPU_FENCE_OWNER_UNDEFINED, &f);
@@ -995,12 +993,12 @@ static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 		*fence = dma_fence_get(f);
 	amdgpu_bo_unref(&bo);
 	dma_fence_put(f);
+	amdgpu_job_put(&job);
 
 	return 0;
 
 err_free:
-	amdgpu_job_free(job);
-
+	amdgpu_job_put(&job);
 err:
 	ttm_eu_backoff_reservation(&ticket, &head);
 	return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index e2c0678..50ed4b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -467,16 +467,14 @@ int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 	r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
 	job->fence = dma_fence_get(f);
 	if (r)
-		goto err;
+		goto out_unref;
 
-	amdgpu_job_free(job);
 	if (fence)
 		*fence = dma_fence_get(f);
 	dma_fence_put(f);
-	return 0;
 
-err:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
@@ -530,23 +528,21 @@ int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 		r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
 		job->fence = dma_fence_get(f);
 		if (r)
-			goto err;
+			goto out_unref;
 
-		amdgpu_job_free(job);
 	} else {
 		r = amdgpu_job_submit(job, ring, &ring->adev->vce.entity,
 				      AMDGPU_FENCE_OWNER_UNDEFINED, &f);
 		if (r)
-			goto err;
+			goto out_unref;
 	}
 
 	if (fence)
 		*fence = dma_fence_get(f);
 	dma_fence_put(f);
-	return 0;
 
-err:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index bd0d331..95f1664 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -668,7 +668,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
 	}
 
 	if (params.ib->length_dw == 0) {
-		amdgpu_job_free(job);
+		amdgpu_job_put(&job);
 		return 0;
 	}
 
@@ -683,17 +683,15 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
 	r = amdgpu_job_submit(job, ring, &vm->entity,
 			      AMDGPU_FENCE_OWNER_VM, &fence);
 	if (r)
-		goto error_free;
+		goto out_unref;
 
 	amdgpu_bo_fence(vm->page_directory, fence, true);
 	dma_fence_put(vm->page_directory_fence);
 	vm->page_directory_fence = dma_fence_get(fence);
 	dma_fence_put(fence);
 
-	return 0;
-
-error_free:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
@@ -965,16 +963,16 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 
 	r = amdgpu_sync_fence(adev, &job->sync, exclusive);
 	if (r)
-		goto error_free;
+		goto out_unref;
 
 	r = amdgpu_sync_resv(adev, &job->sync, vm->page_directory->tbo.resv,
 			     owner);
 	if (r)
-		goto error_free;
+		goto out_unref;
 
 	r = reservation_object_reserve_shared(vm->page_directory->tbo.resv);
 	if (r)
-		goto error_free;
+		goto out_unref;
 
 	params.shadow = true;
 	amdgpu_vm_frag_ptes(&params, vm, start, last + 1, addr, flags);
@@ -986,7 +984,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 	r = amdgpu_job_submit(job, ring, &vm->entity,
 			      AMDGPU_FENCE_OWNER_VM, &f);
 	if (r)
-		goto error_free;
+		goto out_unref;
 
 	amdgpu_bo_fence(vm->page_directory, f, true);
 	if (fence) {
@@ -994,10 +992,9 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 		*fence = dma_fence_get(f);
 	}
 	dma_fence_put(f);
-	return 0;
 
-error_free:
-	amdgpu_job_free(job);
+out_unref:
+	amdgpu_job_put(&job);
 	return r;
 }
 
-- 
2.9.3

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[PATCH 20/22] drm/amdgpu: implement ring set_priority for gfx_v8 compute v3

[Andres Rodriguez]

Programming CP_HQD_QUEUE_PRIORITY enables a queue to take priority over
other queues on the same pipe. Multiple queues on a pipe are timesliced
so this gives us full precedence over other queues.

Programming CP_HQD_PIPE_PRIORITY changes the SPI_ARB_PRIORITY of the
wave as follows:
        0x2: CS_H
        0x1: CS_M
        0x0: CS_L

The SPI block will then dispatch work according to the policy set by
SPI_ARB_PRIORITY. In the current policy CS_H is higher priority than
gfx.

In order to prevent getting stuck in loops of CUs bouncing between GFX
and high priority compute and introducing further latency, we reserve
CUs 2+ for high priority compute on-demand.

v2: fix srbm_select to ring->queue and use ring->funcs->type
v3: use AMD_SCHED_PRIORITY_* instead of AMDGPU_CTX_PRIORITY_*

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h        |  3 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |  1 +
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c      | 96 +++++++++++++++++++++++++++++-
 3 files changed, 99 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 6fe10cd..a22b859 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -921,6 +921,9 @@ struct amdgpu_gfx {
 	unsigned			num_gfx_rings;
 	struct amdgpu_ring		compute_ring[AMDGPU_MAX_COMPUTE_RINGS];
 	unsigned			num_compute_rings;
+	spinlock_t			cu_reserve_lock;
+	uint32_t			cu_reserve_pipe_mask;
+	uint32_t			cu_reserve_queue_mask[AMDGPU_MAX_COMPUTE_RINGS];
 	struct amdgpu_irq_src		eop_irq;
 	struct amdgpu_irq_src		priv_reg_irq;
 	struct amdgpu_irq_src		priv_inst_irq;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 954e3b9..3f3dc79 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1712,6 +1712,7 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	spin_lock_init(&adev->gc_cac_idx_lock);
 	spin_lock_init(&adev->audio_endpt_idx_lock);
 	spin_lock_init(&adev->mm_stats.lock);
+	spin_lock_init(&adev->gfx.cu_reserve_lock);
 
 	INIT_LIST_HEAD(&adev->shadow_list);
 	mutex_init(&adev->shadow_list_lock);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5db5bac..38a5099 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -53,7 +53,10 @@
 
 #define GFX8_NUM_GFX_RINGS     1
 #define GFX8_MEC_HPD_SIZE 2048
-
+#define GFX8_CU_RESERVE_RESOURCES 0x45888
+#define GFX8_CU_NUM 8
+#define GFX8_UNRESERVED_CU_NUM 2
+#define GFX8_CU_RESERVE_PIPE_SHIFT 7
 
 #define TOPAZ_GB_ADDR_CONFIG_GOLDEN 0x22010001
 #define CARRIZO_GB_ADDR_CONFIG_GOLDEN 0x22010001
@@ -6674,6 +6677,96 @@ static void gfx_v8_0_ring_set_wptr_compute(struct amdgpu_ring *ring)
 	WDOORBELL32(ring->doorbell_index, ring->wptr);
 }
 
+static void gfx_v8_0_cu_reserve(struct amdgpu_device *adev,
+				struct amdgpu_ring *ring, bool acquire)
+{
+	int i, resources;
+	int tmp = 0, queue_mask = 0, type_mask = 0;
+	int reserve_res_reg, reserve_en_reg;
+
+	/* gfx_v8_0_cu_reserve only supports compute path */
+	if (ring->funcs->type != AMDGPU_RING_TYPE_COMPUTE)
+		return;
+
+	spin_lock(&adev->gfx.cu_reserve_lock);
+	if (acquire) {
+		adev->gfx.cu_reserve_pipe_mask |= (1 << ring->pipe);
+		adev->gfx.cu_reserve_queue_mask[ring->pipe] |= (1 << ring->queue);
+	} else {
+		adev->gfx.cu_reserve_pipe_mask &= ~(1 << ring->pipe);
+		adev->gfx.cu_reserve_queue_mask[ring->pipe] &= ~(1 << ring->queue);
+	}
+
+	/* compute pipe 0 starts at GFX8_CU_RESERVE_PIPE_SHIFT */
+	type_mask = (adev->gfx.cu_reserve_pipe_mask << GFX8_CU_RESERVE_PIPE_SHIFT);
+
+	/* HW only has one register for queue mask, so we collaspse them */
+	for (i = 0; i < AMDGPU_MAX_COMPUTE_RINGS; i++)
+		queue_mask |= adev->gfx.cu_reserve_queue_mask[i];
+
+	/* leave the first CUs for general processing */
+	for (i = GFX8_UNRESERVED_CU_NUM; i < GFX8_CU_NUM; i++) {
+		reserve_res_reg = mmSPI_RESOURCE_RESERVE_CU_0 + i;
+		reserve_en_reg = mmSPI_RESOURCE_RESERVE_EN_CU_0 + i;
+
+		tmp = REG_SET_FIELD(tmp, SPI_RESOURCE_RESERVE_EN_CU_0,
+				    TYPE_MASK, type_mask);
+		tmp = REG_SET_FIELD(tmp, SPI_RESOURCE_RESERVE_EN_CU_0,
+				    QUEUE_MASK, queue_mask);
+		if (queue_mask) {
+			resources = GFX8_CU_RESERVE_RESOURCES;
+			tmp = REG_SET_FIELD(tmp, SPI_RESOURCE_RESERVE_EN_CU_0,
+					    EN, 1);
+		} else {
+			resources = 0;
+			tmp = REG_SET_FIELD(tmp, SPI_RESOURCE_RESERVE_EN_CU_0,
+					    EN, 0);
+		}
+		/* Commit */
+		WREG32(reserve_res_reg, resources);
+		WREG32(reserve_en_reg, tmp);
+	}
+
+	spin_unlock(&adev->gfx.cu_reserve_lock);
+}
+
+static void gfx_v8_0_set_spi_priority(struct amdgpu_device *adev,
+				      struct amdgpu_ring *ring,
+				      int priority)
+{
+	mutex_lock(&adev->srbm_mutex);
+	vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
+
+	switch (priority) {
+	case AMD_SCHED_PRIORITY_NORMAL:
+		WREG32(mmCP_HQD_PIPE_PRIORITY, 0x0);
+		WREG32(mmCP_HQD_QUEUE_PRIORITY, 0x0);
+		break;
+	case AMD_SCHED_PRIORITY_HIGH:
+		WREG32(mmCP_HQD_PIPE_PRIORITY, 0x2);
+		WREG32(mmCP_HQD_QUEUE_PRIORITY, 0xf);
+		break;
+	default:
+		WARN(1, "Attempt to set invalid SPI priority:%d for ring:%d\n",
+				priority, ring->idx);
+		break;
+	}
+
+	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,
+					       int priority)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring->funcs->type != AMDGPU_RING_TYPE_COMPUTE)
+		return;
+
+	gfx_v8_0_set_spi_priority(adev, ring, priority);
+	gfx_v8_0_cu_reserve(adev, ring, priority == AMD_SCHED_PRIORITY_HIGH);
+}
+
 static void gfx_v8_0_ring_emit_fence_compute(struct amdgpu_ring *ring,
 					     u64 addr, u64 seq,
 					     unsigned flags)
@@ -7081,6 +7174,7 @@ 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,
 };
 
 static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_kiq = {
-- 
2.9.3

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[PATCH 21/22] drm/amdgpu: condense mqd programming sequence

[Andres Rodriguez]

The MQD structure matches the reg layout. Take advantage of this to
simplify HQD programming.

Note that the ACTIVE field still needs to be programmed last.

Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 44 +++++--------------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 83 +++++------------------------------
 2 files changed, 22 insertions(+), 105 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index b0b0c89..36994bb 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3115,47 +3115,25 @@ static void gfx_v7_0_mqd_init(struct amdgpu_device *adev,
 
 int gfx_v7_0_mqd_commit(struct amdgpu_device *adev, struct cik_mqd *mqd)
 {
-	u32 tmp;
+	uint32_t tmp;
+	uint32_t mqd_reg;
+	uint32_t *mqd_data;
+
+	/* HQD registers extend from mmCP_MQD_BASE_ADDR to mmCP_MQD_CONTROL */
+	mqd_data = &mqd->cp_mqd_base_addr_lo;
 
 	/* disable wptr polling */
 	tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
 	tmp = REG_SET_FIELD(tmp, CP_PQ_WPTR_POLL_CNTL, EN, 0);
 	WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
 
-	/* program MQD field to HW */
-	WREG32(mmCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
-	WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->cp_mqd_base_addr_hi);
-	WREG32(mmCP_MQD_CONTROL, mqd->cp_mqd_control);
-	WREG32(mmCP_HQD_PQ_BASE, mqd->cp_hqd_pq_base_lo);
-	WREG32(mmCP_HQD_PQ_BASE_HI, mqd->cp_hqd_pq_base_hi);
-	WREG32(mmCP_HQD_PQ_CONTROL, mqd->cp_hqd_pq_control);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->cp_hqd_pq_wptr_poll_addr_lo);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->cp_hqd_pq_wptr_poll_addr_hi);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, mqd->cp_hqd_pq_rptr_report_addr_lo);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI, mqd->cp_hqd_pq_rptr_report_addr_hi);
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
-	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-	WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
-
-	WREG32(mmCP_HQD_IB_CONTROL, mqd->cp_hqd_ib_control);
-	WREG32(mmCP_HQD_IB_BASE_ADDR, mqd->cp_hqd_ib_base_addr_lo);
-	WREG32(mmCP_HQD_IB_BASE_ADDR_HI, mqd->cp_hqd_ib_base_addr_hi);
-	WREG32(mmCP_HQD_IB_RPTR, mqd->cp_hqd_ib_rptr);
-	WREG32(mmCP_HQD_PERSISTENT_STATE, mqd->cp_hqd_persistent_state);
-	WREG32(mmCP_HQD_SEMA_CMD, mqd->cp_hqd_sema_cmd);
-	WREG32(mmCP_HQD_MSG_TYPE, mqd->cp_hqd_msg_type);
-	WREG32(mmCP_HQD_ATOMIC0_PREOP_LO, mqd->cp_hqd_atomic0_preop_lo);
-	WREG32(mmCP_HQD_ATOMIC0_PREOP_HI, mqd->cp_hqd_atomic0_preop_hi);
-	WREG32(mmCP_HQD_ATOMIC1_PREOP_LO, mqd->cp_hqd_atomic1_preop_lo);
-	WREG32(mmCP_HQD_ATOMIC1_PREOP_HI, mqd->cp_hqd_atomic1_preop_hi);
-	WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
-	WREG32(mmCP_HQD_QUANTUM, mqd->cp_hqd_quantum);
-	WREG32(mmCP_HQD_PIPE_PRIORITY, mqd->cp_hqd_pipe_priority);
-	WREG32(mmCP_HQD_QUEUE_PRIORITY, mqd->cp_hqd_queue_priority);
-	WREG32(mmCP_HQD_IQ_RPTR, mqd->cp_hqd_iq_rptr);
+	/* program all HQD registers */
+	for (mqd_reg = mmCP_HQD_VMID; mqd_reg <= mmCP_MQD_CONTROL; mqd_reg++)
+		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
 
 	/* activate the HQD */
-	WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
+	for (mqd_reg = mmCP_MQD_BASE_ADDR; mqd_reg <= mmCP_HQD_ACTIVE; mqd_reg++)
+		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 38a5099..63bfdf6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4926,85 +4926,24 @@ static void gfx_v8_0_enable_doorbell(struct amdgpu_device *adev, bool enable)
 int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
 {
 	uint32_t tmp;
+	uint32_t mqd_reg;
+	uint32_t *mqd_data;
+
+	/* HQD registers extend from mmCP_MQD_BASE_ADDR to mmCP_HQD_ERROR */
+	mqd_data = &mqd->cp_mqd_base_addr_lo;
 
 	/* disable wptr polling */
 	tmp = RREG32(mmCP_PQ_WPTR_POLL_CNTL);
 	tmp = REG_SET_FIELD(tmp, CP_PQ_WPTR_POLL_CNTL, EN, 0);
 	WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
 
-	WREG32(mmCP_HQD_EOP_BASE_ADDR, mqd->cp_hqd_eop_base_addr_lo);
-	WREG32(mmCP_HQD_EOP_BASE_ADDR_HI, mqd->cp_hqd_eop_base_addr_hi);
-
-	/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
-	WREG32(mmCP_HQD_EOP_CONTROL, mqd->cp_hqd_eop_control);
-
-	/* enable doorbell? */
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
-
-	/* set pq read/write pointers */
-	WREG32(mmCP_HQD_DEQUEUE_REQUEST, mqd->cp_hqd_dequeue_request);
-	WREG32(mmCP_HQD_PQ_RPTR, mqd->cp_hqd_pq_rptr);
-	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-
-	/* set the pointer to the MQD */
-	WREG32(mmCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
-	WREG32(mmCP_MQD_BASE_ADDR_HI, mqd->cp_mqd_base_addr_hi);
-
-	/* set MQD vmid to 0 */
-	WREG32(mmCP_MQD_CONTROL, mqd->cp_mqd_control);
-
-	/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
-	WREG32(mmCP_HQD_PQ_BASE, mqd->cp_hqd_pq_base_lo);
-	WREG32(mmCP_HQD_PQ_BASE_HI, mqd->cp_hqd_pq_base_hi);
-
-	/* set up the HQD, this is similar to CP_RB0_CNTL */
-	WREG32(mmCP_HQD_PQ_CONTROL, mqd->cp_hqd_pq_control);
-
-	/* set the wb address whether it's enabled or not */
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR,
-				mqd->cp_hqd_pq_rptr_report_addr_lo);
-	WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
-				mqd->cp_hqd_pq_rptr_report_addr_hi);
-
-	/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, mqd->cp_hqd_pq_wptr_poll_addr_lo);
-	WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, mqd->cp_hqd_pq_wptr_poll_addr_hi);
-
-	/* enable the doorbell if requested */
-	WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, mqd->cp_hqd_pq_doorbell_control);
+	/* program all HQD registers */
+	for (mqd_reg = mmCP_HQD_VMID; mqd_reg <= mmCP_HQD_ERROR; mqd_reg++)
+		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
 
-	/* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
-	WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
-	WREG32(mmCP_HQD_EOP_RPTR, mqd->cp_hqd_eop_rptr);
-	WREG32(mmCP_HQD_EOP_WPTR, mqd->cp_hqd_eop_wptr);
-
-	/* set the HQD priority */
-	WREG32(mmCP_HQD_PIPE_PRIORITY, mqd->cp_hqd_pipe_priority);
-	WREG32(mmCP_HQD_QUEUE_PRIORITY, mqd->cp_hqd_queue_priority);
-	WREG32(mmCP_HQD_QUANTUM, mqd->cp_hqd_quantum);
-
-	/* set cwsr save area */
-	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_LO, mqd->cp_hqd_ctx_save_base_addr_lo);
-	WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_HI, mqd->cp_hqd_ctx_save_base_addr_hi);
-	WREG32(mmCP_HQD_CTX_SAVE_CONTROL, mqd->cp_hqd_ctx_save_control);
-	WREG32(mmCP_HQD_CNTL_STACK_OFFSET, mqd->cp_hqd_cntl_stack_offset);
-	WREG32(mmCP_HQD_CNTL_STACK_SIZE, mqd->cp_hqd_cntl_stack_size);
-	WREG32(mmCP_HQD_WG_STATE_OFFSET, mqd->cp_hqd_wg_state_offset);
-	WREG32(mmCP_HQD_CTX_SAVE_SIZE, mqd->cp_hqd_ctx_save_size);
-
-	WREG32(mmCP_HQD_IB_CONTROL, mqd->cp_hqd_ib_control);
-	WREG32(mmCP_HQD_EOP_EVENTS, mqd->cp_hqd_eop_done_events);
-	WREG32(mmCP_HQD_ERROR, mqd->cp_hqd_error);
-	WREG32(mmCP_HQD_EOP_WPTR_MEM, mqd->cp_hqd_eop_wptr_mem);
-	WREG32(mmCP_HQD_EOP_DONES, mqd->cp_hqd_eop_dones);
-
-	/* set the vmid for the queue */
-	WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
-
-	WREG32(mmCP_HQD_PERSISTENT_STATE, mqd->cp_hqd_persistent_state);
-
-	/* activate the queue */
-	WREG32(mmCP_HQD_ACTIVE, mqd->cp_hqd_active);
+	/* activate the HQD */
+	for (mqd_reg = mmCP_MQD_BASE_ADDR; mqd_reg <= mmCP_HQD_ACTIVE; mqd_reg++)
+		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
 
 	return 0;
 }
-- 
2.9.3

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[PATCH 22/22] drm/amdgpu: workaround tonga HW bug in HQD programming sequence

[Andres Rodriguez]

Tonga based asics may experience hangs when an HQD's EOP parameters
are modified.

Workaround this HW issue by avoiding writes to these registers for
tonga asics.

Based on the following ROCm commit:
2a0fb8 - drm/amdgpu: Synchronize KFD HQD load protocol with CP scheduler

From the ROCm git repository:
https://github.com/RadeonOpenCompute/ROCK-Kernel-Driver.git

CC: Jay Cornwall <Jay.Cornwall@amd.com>
Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 63bfdf6..a995398 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4938,7 +4938,21 @@ int gfx_v8_0_mqd_commit(struct amdgpu_device *adev, struct vi_mqd *mqd)
 	WREG32(mmCP_PQ_WPTR_POLL_CNTL, tmp);
 
 	/* program all HQD registers */
-	for (mqd_reg = mmCP_HQD_VMID; mqd_reg <= mmCP_HQD_ERROR; mqd_reg++)
+	for (mqd_reg = mmCP_HQD_VMID; mqd_reg <= mmCP_HQD_EOP_CONTROL; mqd_reg++)
+		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
+
+	/* Tonga errata: EOP RPTR/WPTR should be left unmodified.
+	 * This is safe since EOP RPTR==WPTR for any inactive HQD
+	 * on ASICs that do not support context-save.
+	 * EOP writes/reads can start anywhere in the ring.
+	 */
+	if (adev->asic_type != CHIP_TONGA) {
+		WREG32(mmCP_HQD_EOP_RPTR, mqd->cp_hqd_eop_rptr);
+		WREG32(mmCP_HQD_EOP_WPTR, mqd->cp_hqd_eop_wptr);
+		WREG32(mmCP_HQD_EOP_WPTR_MEM, mqd->cp_hqd_eop_wptr_mem);
+	}
+
+	for (mqd_reg = mmCP_HQD_EOP_EVENTS; mqd_reg <= mmCP_HQD_ERROR; mqd_reg++)
 		WREG32(mqd_reg, mqd_data[mqd_reg - mmCP_MQD_BASE_ADDR]);
 
 	/* activate the HQD */
-- 
2.9.3

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