[PATCH 11/15] drm/amdgpu/vcn: switch work handler to be per instance

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Have a separate work handler for each VCN instance. This
paves the way for per instance VCN power gating at runtime.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 83 +++++++++++++------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h |  8 ++-
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c   | 17 ++---
 drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c   |  4 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c   |  4 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c   |  5 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c |  4 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c |  5 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c |  5 +-
 10 files changed, 75 insertions(+), 62 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index b4a550795470..3383e4146c6a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -118,12 +118,15 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
 	unsigned int fw_shared_size, log_offset;
 	int i, r;
 
-	INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler);
-	mutex_init(&adev->vcn.vcn_pg_lock);
 	mutex_init(&adev->vcn.vcn1_jpeg1_workaround);
-	atomic_set(&adev->vcn.total_submission_cnt, 0);
-	for (i = 0; i < adev->vcn.num_vcn_inst; i++)
+	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
+		mutex_init(&adev->vcn.inst[i].vcn_pg_lock);
+		adev->vcn.inst[i].adev = adev;
+		adev->vcn.inst[i].inst = i;
+		atomic_set(&adev->vcn.inst[i].total_submission_cnt, 0);
+		INIT_DELAYED_WORK(&adev->vcn.inst[i].idle_work, amdgpu_vcn_idle_work_handler);
 		atomic_set(&adev->vcn.inst[i].dpg_enc_submission_cnt, 0);
+	}
 
 	if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
 	    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
@@ -271,10 +274,10 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
 			amdgpu_ring_fini(&adev->vcn.inst[j].ring_enc[i]);
 
 		amdgpu_ucode_release(&adev->vcn.inst[j].fw);
+		mutex_destroy(&adev->vcn.inst[j].vcn_pg_lock);
 	}
 
 	mutex_destroy(&adev->vcn.vcn1_jpeg1_workaround);
-	mutex_destroy(&adev->vcn.vcn_pg_lock);
 
 	return 0;
 }
@@ -325,8 +328,10 @@ int amdgpu_vcn_save_vcpu_bo(struct amdgpu_device *adev)
 int amdgpu_vcn_suspend(struct amdgpu_device *adev)
 {
 	bool in_ras_intr = amdgpu_ras_intr_triggered();
+	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
+	for (i = 0; i < adev->vcn.num_vcn_inst; ++i)
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
 
 	/* err_event_athub will corrupt VCPU buffer, so we need to
 	 * restore fw data and clear buffer in amdgpu_vcn_resume() */
@@ -382,46 +387,45 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
 
 static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
 {
-	struct amdgpu_device *adev =
-		container_of(work, struct amdgpu_device, vcn.idle_work.work);
+	struct amdgpu_vcn_inst *vcn_inst =
+		container_of(work, struct amdgpu_vcn_inst, idle_work.work);
+	struct amdgpu_device *adev = vcn_inst->adev;
 	unsigned int fences = 0, fence[AMDGPU_MAX_VCN_INSTANCES] = {0};
-	unsigned int i, j;
+	unsigned int i = vcn_inst->inst, j;
 	int r = 0;
 
-	for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
-		if (adev->vcn.harvest_config & (1 << j))
-			continue;
-
-		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
-			fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_enc[i]);
+	if (adev->vcn.harvest_config & (1 << i))
+		return;
 
-		/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
-		if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
-		    !adev->vcn.using_unified_queue) {
-			struct dpg_pause_state new_state;
+	for (j = 0; j < adev->vcn.num_enc_rings; ++j)
+		fence[i] += amdgpu_fence_count_emitted(&vcn_inst->ring_enc[j]);
 
-			if (fence[j] ||
-				unlikely(atomic_read(&adev->vcn.inst[j].dpg_enc_submission_cnt)))
-				new_state.fw_based = VCN_DPG_STATE__PAUSE;
-			else
-				new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
+	/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
+	    !adev->vcn.using_unified_queue) {
+		struct dpg_pause_state new_state;
 
-			adev->vcn.pause_dpg_mode(adev, j, &new_state);
-		}
+		if (fence[i] ||
+		    unlikely(atomic_read(&vcn_inst->dpg_enc_submission_cnt)))
+			new_state.fw_based = VCN_DPG_STATE__PAUSE;
+		else
+			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
 
-		fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_dec);
-		fences += fence[j];
+		adev->vcn.pause_dpg_mode(adev, i, &new_state);
 	}
 
-	if (!fences && !atomic_read(&adev->vcn.total_submission_cnt)) {
+	fence[i] += amdgpu_fence_count_emitted(&vcn_inst->ring_dec);
+	fences += fence[i];
+
+	if (!fences && !atomic_read(&vcn_inst->total_submission_cnt)) {
 		amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
-		       AMD_PG_STATE_GATE);
+						       AMD_PG_STATE_GATE);
 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
-				false);
+						    false);
 		if (r)
 			dev_warn(adev->dev, "(%d) failed to disable video power profile mode\n", r);
 	} else {
-		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+		schedule_delayed_work(&vcn_inst->idle_work, VCN_IDLE_TIMEOUT);
 	}
 }
 
@@ -430,18 +434,18 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
 	struct amdgpu_device *adev = ring->adev;
 	int r = 0;
 
-	atomic_inc(&adev->vcn.total_submission_cnt);
+	atomic_inc(&adev->vcn.inst[ring->me].total_submission_cnt);
 
-	if (!cancel_delayed_work_sync(&adev->vcn.idle_work)) {
+	if (!cancel_delayed_work_sync(&adev->vcn.inst[ring->me].idle_work)) {
 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
 				true);
 		if (r)
 			dev_warn(adev->dev, "(%d) failed to switch to video power profile mode\n", r);
 	}
 
-	mutex_lock(&adev->vcn.vcn_pg_lock);
+	mutex_lock(&adev->vcn.inst[ring->me].vcn_pg_lock);
 	amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
-	       AMD_PG_STATE_UNGATE);
+					       AMD_PG_STATE_UNGATE);
 
 	/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
@@ -466,7 +470,7 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
 
 		adev->vcn.pause_dpg_mode(adev, ring->me, &new_state);
 	}
-	mutex_unlock(&adev->vcn.vcn_pg_lock);
+	mutex_unlock(&adev->vcn.inst[ring->me].vcn_pg_lock);
 }
 
 void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
@@ -479,9 +483,10 @@ void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
 	    !adev->vcn.using_unified_queue)
 		atomic_dec(&ring->adev->vcn.inst[ring->me].dpg_enc_submission_cnt);
 
-	atomic_dec(&ring->adev->vcn.total_submission_cnt);
+	atomic_dec(&ring->adev->vcn.inst[ring->me].total_submission_cnt);
 
-	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+	schedule_delayed_work(&ring->adev->vcn.inst[ring->me].idle_work,
+			      VCN_IDLE_TIMEOUT);
 }
 
 int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index 7b528123b36e..0d9a4d946eac 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -279,6 +279,8 @@ struct amdgpu_vcn_fw_shared {
 };
 
 struct amdgpu_vcn_inst {
+	struct amdgpu_device	*adev;
+	int			inst;
 	struct amdgpu_bo	*vcpu_bo;
 	void			*cpu_addr;
 	uint64_t		gpu_addr;
@@ -300,6 +302,9 @@ struct amdgpu_vcn_inst {
 	const struct firmware	*fw; /* VCN firmware */
 	uint8_t			vcn_config;
 	uint32_t		vcn_codec_disable_mask;
+	atomic_t		total_submission_cnt;
+	struct mutex		vcn_pg_lock;
+	struct delayed_work	idle_work;
 };
 
 struct amdgpu_vcn_ras {
@@ -308,7 +313,6 @@ struct amdgpu_vcn_ras {
 
 struct amdgpu_vcn {
 	unsigned		fw_version;
-	struct delayed_work	idle_work;
 	unsigned		num_enc_rings;
 	enum amd_powergating_state cur_state;
 	bool			indirect_sram;
@@ -316,9 +320,7 @@ struct amdgpu_vcn {
 	uint8_t	num_vcn_inst;
 	struct amdgpu_vcn_inst	 inst[AMDGPU_MAX_VCN_INSTANCES];
 	struct amdgpu_vcn_reg	 internal;
-	struct mutex		 vcn_pg_lock;
 	struct mutex		vcn1_jpeg1_workaround;
-	atomic_t		 total_submission_cnt;
 
 	unsigned	harvest_config;
 	int (*pause_dpg_mode)(struct amdgpu_device *adev,
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 5ea96c983517..9ca964e11540 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -150,7 +150,7 @@ static int vcn_v1_0_sw_init(struct amdgpu_ip_block *ip_block)
 		return r;
 
 	/* Override the work func */
-	adev->vcn.idle_work.work.func = vcn_v1_0_idle_work_handler;
+	adev->vcn.inst->idle_work.work.func = vcn_v1_0_idle_work_handler;
 
 	amdgpu_vcn_setup_ucode(adev);
 
@@ -277,7 +277,7 @@ static int vcn_v1_0_hw_fini(struct amdgpu_ip_block *ip_block)
 {
 	struct amdgpu_device *adev = ip_block->adev;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
+	cancel_delayed_work_sync(&adev->vcn.inst->idle_work);
 
 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 		(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
@@ -301,7 +301,7 @@ static int vcn_v1_0_suspend(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	bool idle_work_unexecuted;
 
-	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.idle_work);
+	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.inst->idle_work);
 	if (idle_work_unexecuted) {
 		if (adev->pm.dpm_enabled)
 			amdgpu_dpm_enable_vcn(adev, false, 0);
@@ -1828,8 +1828,9 @@ static int vcn_v1_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
 
 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
 {
-	struct amdgpu_device *adev =
-		container_of(work, struct amdgpu_device, vcn.idle_work.work);
+	struct amdgpu_vcn_inst *vcn_inst =
+		container_of(work, struct amdgpu_vcn_inst, idle_work.work);
+	struct amdgpu_device *adev = vcn_inst->adev;
 	unsigned int fences = 0, i;
 
 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
@@ -1862,14 +1863,14 @@ static void vcn_v1_0_idle_work_handler(struct work_struct *work)
 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
 			       AMD_PG_STATE_GATE);
 	} else {
-		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+		schedule_delayed_work(&adev->vcn.inst->idle_work, VCN_IDLE_TIMEOUT);
 	}
 }
 
 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
 {
 	struct	amdgpu_device *adev = ring->adev;
-	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
+	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.inst->idle_work);
 
 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
 
@@ -1921,7 +1922,7 @@ void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
 
 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
 {
-	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+	schedule_delayed_work(&ring->adev->vcn.inst->idle_work, VCN_IDLE_TIMEOUT);
 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index e42cfc731ad8..115f33c3ab68 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -313,7 +313,7 @@ static int vcn_v2_0_hw_fini(struct amdgpu_ip_block *ip_block)
 {
 	struct amdgpu_device *adev = ip_block->adev;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
+	cancel_delayed_work_sync(&adev->vcn.inst->idle_work);
 
 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 	    (adev->vcn.cur_state != AMD_PG_STATE_GATE &&
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
index b9be304aa294..6fb08ed09310 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
@@ -390,12 +390,12 @@ static int vcn_v2_5_hw_fini(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
-
 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
 
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
+
 		if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 		    (adev->vcn.cur_state != AMD_PG_STATE_GATE &&
 		     RREG32_SOC15(VCN, i, mmUVD_STATUS)))
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index a3627700ed48..70a1b85a4efa 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -422,12 +422,12 @@ static int vcn_v3_0_hw_fini(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
-
 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
 
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
+
 		if (!amdgpu_sriov_vf(adev)) {
 			if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 				(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
index e11bd6cae8fc..656c2a1c4bf9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
@@ -359,11 +359,12 @@ static int vcn_v4_0_hw_fini(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
-
 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
+
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
+
 		if (!amdgpu_sriov_vf(adev)) {
 			if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 				(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
index d4d92d4e2cab..8eea78c498da 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
@@ -331,8 +331,10 @@ static int vcn_v4_0_3_hw_init(struct amdgpu_ip_block *ip_block)
 static int vcn_v4_0_3_hw_fini(struct amdgpu_ip_block *ip_block)
 {
 	struct amdgpu_device *adev = ip_block->adev;
+	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
+	for (i = 0; i < adev->vcn.num_vcn_inst; ++i)
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
 
 	if (adev->vcn.cur_state != AMD_PG_STATE_GATE)
 		vcn_v4_0_3_set_powergating_state(ip_block, AMD_PG_STATE_GATE);
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
index 26bd1954b5e3..7086f98c2ddc 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
@@ -300,11 +300,12 @@ static int vcn_v4_0_5_hw_fini(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
-
 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
+
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
+
 		if (!amdgpu_sriov_vf(adev)) {
 			if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 				(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
index 95b31167f552..4c641813aeff 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
@@ -274,11 +274,12 @@ static int vcn_v5_0_0_hw_fini(struct amdgpu_ip_block *ip_block)
 	struct amdgpu_device *adev = ip_block->adev;
 	int i;
 
-	cancel_delayed_work_sync(&adev->vcn.idle_work);
-
 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 		if (adev->vcn.harvest_config & (1 << i))
 			continue;
+
+		cancel_delayed_work_sync(&adev->vcn.inst[i].idle_work);
+
 		if (!amdgpu_sriov_vf(adev)) {
 			if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
 				(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
-- 
2.47.0




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