Re: [PATCH 3/4] drm/amd/display: In VRR mode, do DRM core vblank handling at end of vblank.

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On 3/18/19 1:19 PM, Mario Kleiner wrote:
> In VRR mode, proper vblank/pageflip timestamps can only be computed
> after the display scanout position has left front-porch. Therefore
> delay calls to drm_crtc_handle_vblank(), and thereby calls to
> drm_update_vblank_count() and pageflip event delivery, to after the
> end of front-porch when in VRR mode.
> 
> We add a new vupdate irq, which triggers at the end of the vupdate
> interval, ie. at the end of vblank, and calls the core vblank handler
> function. The new irq handler is not executed in standard non-VRR
> mode, so vblank handling for fixed refresh rate mode is identical
> to the past implementation.
> 
> Signed-off-by: Mario Kleiner <mario.kleiner.de@xxxxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h                |   1 +
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c  | 129 ++++++++++++++++++++-
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h  |   9 ++
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c  |  22 ++++
>   .../amd/display/dc/irq/dce110/irq_service_dce110.c |   7 +-
>   .../amd/display/dc/irq/dce120/irq_service_dce120.c |   7 +-
>   .../amd/display/dc/irq/dce80/irq_service_dce80.c   |   6 +-
>   .../amd/display/dc/irq/dcn10/irq_service_dcn10.c   |  40 +++++--
>   8 files changed, 205 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index f88761a..64167dd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -827,6 +827,7 @@ struct amdgpu_device {
>   	/* For pre-DCE11. DCE11 and later are in "struct amdgpu_device->dm" */
>   	struct work_struct		hotplug_work;
>   	struct amdgpu_irq_src		crtc_irq;
> +	struct amdgpu_irq_src		vupdate_irq;
>   	struct amdgpu_irq_src		pageflip_irq;
>   	struct amdgpu_irq_src		hpd_irq;
>   
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 85e4f87..555d9e9f 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -315,6 +315,32 @@ static void dm_pflip_high_irq(void *interrupt_params)
>   	drm_crtc_vblank_put(&amdgpu_crtc->base);
>   }
>   
> +static void dm_vupdate_high_irq(void *interrupt_params)
> +{
> +	struct common_irq_params *irq_params = interrupt_params;
> +	struct amdgpu_device *adev = irq_params->adev;
> +	struct amdgpu_crtc *acrtc;
> +	struct dm_crtc_state *acrtc_state;
> +
> +	acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VUPDATE);
> +
> +	if (acrtc) {
> +		acrtc_state = to_dm_crtc_state(acrtc->base.state);
> +
> +		DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
> +				 amdgpu_dm_vrr_active(acrtc_state));
> +
> +		/* Core vblank handling is done here after end of front-porch in
> +		 * vrr mode, as vblank timestamping will give valid results
> +		 * while now done after front-porch. This will also deliver
> +		 * page-flip completion events that have been queued to us
> +		 * if a pageflip happened inside front-porch.
> +		 */
> +		if (amdgpu_dm_vrr_active(acrtc_state))
> +			drm_crtc_handle_vblank(&acrtc->base)
I was thinking that 3 and 4 might have to be merged, but VRR pflip 
timestamping seems to be the same as it was before (off by a line or 
two) since it's not handled here yet. This seems to fix vblank events 
and timestamping at least.

> +	}
> +}
> +
>   static void dm_crtc_high_irq(void *interrupt_params)
>   {
>   	struct common_irq_params *irq_params = interrupt_params;
> @@ -325,11 +351,24 @@ static void dm_crtc_high_irq(void *interrupt_params)
>   	acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
>   
>   	if (acrtc) {
> -		drm_crtc_handle_vblank(&acrtc->base);
> -		amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
> -
>   		acrtc_state = to_dm_crtc_state(acrtc->base.state);
>   
> +		DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
> +				 amdgpu_dm_vrr_active(acrtc_state));
> +
> +		/* Core vblank handling at start of front-porch is only possible
> +		 * in non-vrr mode, as only there vblank timestamping will give
> +		 * valid results while done in front-porch. Otherwise defer it
> +		 * to dm_vupdate_high_irq after end of front-porch.
> +		 */
> +		if (!amdgpu_dm_vrr_active(acrtc_state))
> +			drm_crtc_handle_vblank(&acrtc->base);
> +
> +		/* Following stuff must happen at start of vblank, for crc
> +		 * computation and below-the-range btr support in vrr mode.
> +		 */
> +		amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
> +
>   		if (acrtc_state->stream &&
>   		    acrtc_state->vrr_params.supported &&
>   		    acrtc_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE) {
> @@ -1447,6 +1486,27 @@ static int dce110_register_irq_handlers(struct amdgpu_device *adev)
>   				dm_crtc_high_irq, c_irq_params);
>   	}
>   
> +	/* Use VUPDATE interrupt */
> +	for (i = VISLANDS30_IV_SRCID_D1_V_UPDATE_INT; i <= VISLANDS30_IV_SRCID_D6_V_UPDATE_INT; i+=2) {
> +		r = amdgpu_irq_add_id(adev, client_id, i, &adev->vupdate_irq);
> +		if (r) {
> +			DRM_ERROR("Failed to add vupdate irq id!\n");
> +			return r;
> +		}
> +
> +		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
> +		int_params.irq_source =
> +			dc_interrupt_to_irq_source(dc, i, 0);
> +
> +		c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
> +
> +		c_irq_params->adev = adev;
> +		c_irq_params->irq_src = int_params.irq_source;
> +
> +		amdgpu_dm_irq_register_interrupt(adev, &int_params,
> +				dm_vupdate_high_irq, c_irq_params);
> +	}
> +
>   	/* Use GRPH_PFLIP interrupt */
>   	for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
>   			i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
> @@ -1532,6 +1592,34 @@ static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
>   				dm_crtc_high_irq, c_irq_params);
>   	}
>   
> +	/* Use VUPDATE_NO_LOCK interrupt on DCN, which seems to correspond to
> +	 * the regular VUPDATE interrupt on DCE. We want DC_IRQ_SOURCE_VUPDATEx
> +	 * to trigger at end of each vblank, regardless of state of the lock,
> +	 * matching DCE behaviour.
> +	 */
> +	for (i = DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT;
> +	     i <= DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT + adev->mode_info.num_crtc - 1;
> +	     i++) {
> +		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->vupdate_irq);
> +
> +		if (r) {
> +			DRM_ERROR("Failed to add vupdate irq id!\n");
> +			return r;
> +		}
> +
> +		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
> +		int_params.irq_source =
> +			dc_interrupt_to_irq_source(dc, i, 0);
> +
> +		c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
> +
> +		c_irq_params->adev = adev;
> +		c_irq_params->irq_src = int_params.irq_source;
> +
> +		amdgpu_dm_irq_register_interrupt(adev, &int_params,
> +				dm_vupdate_high_irq, c_irq_params);
> +	}
> +
>   	/* Use GRPH_PFLIP interrupt */
>   	for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
>   			i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1;
> @@ -3226,12 +3314,42 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
>   	return &state->base;
>   }
>   
> +static inline int dm_set_vupdate_irq(struct drm_crtc *crtc, bool enable)
> +{
> +	enum dc_irq_source irq_source;
> +	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
> +	struct amdgpu_device *adev = crtc->dev->dev_private;
> +	int rc;
> +
> +	irq_source = IRQ_TYPE_VUPDATE + acrtc->otg_inst;
> +
> +	rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
> +
> +	DRM_DEBUG_DRIVER("%s: crtc %d - vupdate irq %sabling: r=%d\n",
> +			 __func__, acrtc->crtc_id, enable ? "en" : "dis", rc);
> +	return rc;
> +}
>   
>   static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
>   {
>   	enum dc_irq_source irq_source;
>   	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
>   	struct amdgpu_device *adev = crtc->dev->dev_private;
> +	struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
> +	int rc = 0;
> +
> +	if (enable) {
> +		/* vblank irq on -> Only need vupdate irq in vrr mode */
> +		if (amdgpu_dm_vrr_active(acrtc_state))
> +			rc = dm_set_vupdate_irq(crtc, true);
> +	}
> +	else {

should be } else {

> +		/* vblank irq off -> vupdate irq off */
> +		rc = dm_set_vupdate_irq(crtc, false);
> +	}
> +
> +	if (rc)
> +		return rc;
>   
>   	irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
>   	return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
> @@ -4741,7 +4859,11 @@ static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
>   		 * While VRR is active, we must not disable vblank irq, as a
>   		 * reenable after disable would compute bogus vblank/pflip
>   		 * timestamps if it likely happened inside display front-porch.
> +		 *
> +		 * We also need vupdate irq for the actual core vblank handling
> +		 * at end of vblank.
>   		 */
> +		dm_set_vupdate_irq(new_state->base.crtc, true);
>   		drm_crtc_vblank_get(new_state->base.crtc);
>   		DRM_DEBUG_DRIVER("%s: crtc=%u VRR off->on: Get vblank ref\n",
>   				 __func__, new_state->base.crtc->base.id);
> @@ -4750,6 +4872,7 @@ static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
>   		/* Transition VRR active -> inactive:
>   		 * Allow vblank irq disable again for fixed refresh rate.
>   		 */
> +		dm_set_vupdate_irq(new_state->base.crtc, false);
>   		drm_crtc_vblank_put(new_state->base.crtc);
>   		DRM_DEBUG_DRIVER("%s: crtc=%u VRR on->off: Drop vblank ref\n",
>   				 __func__, new_state->base.crtc->base.id);
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> index f741ea3..0b35f84 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> @@ -182,6 +182,15 @@ struct amdgpu_display_manager {
>   	struct common_irq_params
>   	vblank_params[DC_IRQ_SOURCE_VBLANK6 - DC_IRQ_SOURCE_VBLANK1 + 1];
>   
> +	/**
> +	 * @vupdate_params:
> +	 *
> +	 * Vertical update IRQ parameters, passed to registered handlers when
> +	 * triggered.
> +	 */
> +	struct common_irq_params
> +	vupdate_params[DC_IRQ_SOURCE_VUPDATE6 - DC_IRQ_SOURCE_VUPDATE1 + 1];
> +
>   	spinlock_t irq_handler_list_table_lock;
>   
>   	struct backlight_device *backlight_dev;
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
> index cd10f77..fee7837 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
> @@ -674,11 +674,30 @@ static int amdgpu_dm_set_crtc_irq_state(struct amdgpu_device *adev,
>   		__func__);
>   }
>   
> +static int amdgpu_dm_set_vupdate_irq_state(struct amdgpu_device *adev,
> +					   struct amdgpu_irq_src *source,
> +					   unsigned crtc_id,

should be unsigned int crtc_id

> +					   enum amdgpu_interrupt_state state)
> +{
> +	return dm_irq_state(
> +		adev,
> +		source,
> +		crtc_id,
> +		state,
> +		IRQ_TYPE_VUPDATE,
> +		__func__);
> +}
> +
>   static const struct amdgpu_irq_src_funcs dm_crtc_irq_funcs = {
>   	.set = amdgpu_dm_set_crtc_irq_state,
>   	.process = amdgpu_dm_irq_handler,
>   };
>   
> +static const struct amdgpu_irq_src_funcs dm_vupdate_irq_funcs = {
> +	.set = amdgpu_dm_set_vupdate_irq_state,
> +	.process = amdgpu_dm_irq_handler,
> +};
> +
>   static const struct amdgpu_irq_src_funcs dm_pageflip_irq_funcs = {
>   	.set = amdgpu_dm_set_pflip_irq_state,
>   	.process = amdgpu_dm_irq_handler,
> @@ -695,6 +714,9 @@ void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev)
>   	adev->crtc_irq.num_types = adev->mode_info.num_crtc;
>   	adev->crtc_irq.funcs = &dm_crtc_irq_funcs;
>   
> +	adev->vupdate_irq.num_types = adev->mode_info.num_crtc;
> +	adev->vupdate_irq.funcs = &dm_vupdate_irq_funcs;
> +
>   	adev->pageflip_irq.num_types = adev->mode_info.num_crtc;
>   	adev->pageflip_irq.funcs = &dm_pageflip_irq_funcs;
>   
> diff --git a/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c b/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
> index afe0876..86987f5 100644
> --- a/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
> +++ b/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
> @@ -81,6 +81,11 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   	.ack = NULL
>   };
>   
> +static const struct irq_source_info_funcs vupdate_irq_info_funcs = {
> +	.set = NULL,
> +	.ack = NULL
> +};
> +
>   #define hpd_int_entry(reg_num)\
>   	[DC_IRQ_SOURCE_HPD1 + reg_num] = {\
>   		.enable_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
> @@ -137,7 +142,7 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
>   		.ack_value =\
>   		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
> -		.funcs = &vblank_irq_info_funcs\
> +		.funcs = &vupdate_irq_info_funcs\
>   	}
>   
>   #define vblank_int_entry(reg_num)\
> diff --git a/drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.c b/drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.c
> index 1ea7256..750ba0a 100644
> --- a/drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.c
> +++ b/drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.c
> @@ -84,6 +84,11 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   	.ack = NULL
>   };
>   
> +static const struct irq_source_info_funcs vupdate_irq_info_funcs = {
> +	.set = NULL,
> +	.ack = NULL
> +};
> +
>   #define BASE_INNER(seg) \
>   	DCE_BASE__INST0_SEG ## seg
>   
> @@ -140,7 +145,7 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   		IRQ_REG_ENTRY(CRTC, reg_num,\
>   			CRTC_INTERRUPT_CONTROL, CRTC_V_UPDATE_INT_MSK,\
>   			CRTC_V_UPDATE_INT_STATUS, CRTC_V_UPDATE_INT_CLEAR),\
> -		.funcs = &vblank_irq_info_funcs\
> +		.funcs = &vupdate_irq_info_funcs\
>   	}
>   
>   #define vblank_int_entry(reg_num)\
> diff --git a/drivers/gpu/drm/amd/display/dc/irq/dce80/irq_service_dce80.c b/drivers/gpu/drm/amd/display/dc/irq/dce80/irq_service_dce80.c
> index 8a2066c..de218fe 100644
> --- a/drivers/gpu/drm/amd/display/dc/irq/dce80/irq_service_dce80.c
> +++ b/drivers/gpu/drm/amd/display/dc/irq/dce80/irq_service_dce80.c
> @@ -84,6 +84,10 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   	.ack = NULL
>   };
>   
> +static const struct irq_source_info_funcs vupdate_irq_info_funcs = {
> +	.set = NULL,
> +	.ack = NULL
> +};
>   
>   #define hpd_int_entry(reg_num)\
>   	[DC_IRQ_SOURCE_INVALID + reg_num] = {\
> @@ -142,7 +146,7 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
>   		.ack_value =\
>   		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
> -		.funcs = &vblank_irq_info_funcs\
> +		.funcs = &vupdate_irq_info_funcs\
>   	}
>   
>   #define vblank_int_entry(reg_num)\
> diff --git a/drivers/gpu/drm/amd/display/dc/irq/dcn10/irq_service_dcn10.c b/drivers/gpu/drm/amd/display/dc/irq/dcn10/irq_service_dcn10.c
> index e04ae49..10ac6de 100644
> --- a/drivers/gpu/drm/amd/display/dc/irq/dcn10/irq_service_dcn10.c
> +++ b/drivers/gpu/drm/amd/display/dc/irq/dcn10/irq_service_dcn10.c
> @@ -56,6 +56,18 @@ enum dc_irq_source to_dal_irq_source_dcn10(
>   		return DC_IRQ_SOURCE_VBLANK5;
>   	case DCN_1_0__SRCID__DC_D6_OTG_VSTARTUP:
>   		return DC_IRQ_SOURCE_VBLANK6;
> +	case DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE1;
> +	case DCN_1_0__SRCID__OTG1_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE2;
> +	case DCN_1_0__SRCID__OTG2_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE3;
> +	case DCN_1_0__SRCID__OTG3_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE4;
> +	case DCN_1_0__SRCID__OTG4_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE5;
> +	case DCN_1_0__SRCID__OTG5_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
> +		return DC_IRQ_SOURCE_VUPDATE6;
>   	case DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT:
>   		return DC_IRQ_SOURCE_PFLIP1;
>   	case DCN_1_0__SRCID__HUBP1_FLIP_INTERRUPT:
> @@ -153,6 +165,11 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   	.ack = NULL
>   };
>   
> +static const struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = {
> +	.set = NULL,
> +	.ack = NULL
> +};
> +
>   #define BASE_INNER(seg) \
>   	DCE_BASE__INST0_SEG ## seg
>   
> @@ -203,12 +220,15 @@ static const struct irq_source_info_funcs vblank_irq_info_funcs = {
>   		.funcs = &pflip_irq_info_funcs\
>   	}
>   
> -#define vupdate_int_entry(reg_num)\
> +/* vupdate_no_lock_int_entry maps to DC_IRQ_SOURCE_VUPDATEx, to match semantic
> + * of DCE's DC_IRQ_SOURCE_VUPDATEx.
> + */
> +#define vupdate_no_lock_int_entry(reg_num)\
>   	[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
>   		IRQ_REG_ENTRY(OTG, reg_num,\
> -			OTG_GLOBAL_SYNC_STATUS, VUPDATE_INT_EN,\
> -			OTG_GLOBAL_SYNC_STATUS, VUPDATE_EVENT_CLEAR),\
> -		.funcs = &vblank_irq_info_funcs\
> +			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_INT_EN,\
> +			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_EVENT_CLEAR),\
> +		.funcs = &vupdate_no_lock_irq_info_funcs\
>   	}
>   
>   #define vblank_int_entry(reg_num)\
> @@ -315,12 +335,12 @@ irq_source_info_dcn10[DAL_IRQ_SOURCES_NUMBER] = {
>   	dc_underflow_int_entry(6),
>   	[DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
>   	[DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
> -	vupdate_int_entry(0),
> -	vupdate_int_entry(1),
> -	vupdate_int_entry(2),
> -	vupdate_int_entry(3),
> -	vupdate_int_entry(4),
> -	vupdate_int_entry(5),
> +	vupdate_no_lock_int_entry(0),
> +	vupdate_no_lock_int_entry(1),
> +	vupdate_no_lock_int_entry(2),
> +	vupdate_no_lock_int_entry(3),
> +	vupdate_no_lock_int_entry(4),
> +	vupdate_no_lock_int_entry(5),
>   	vblank_int_entry(0),
>   	vblank_int_entry(1),
>   	vblank_int_entry(2),
> 

Nicholas Kazlauskas
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