drm/msm/dpu: replace IRQ lookup with the data in hw catalog

The IRQ table in the dpu_hw_interrupts.h is big, ugly, and hard to
maintain. There are only few interrupts used from that table. Newer
generations use different IRQ locations. Move this data to hw catalog.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210516202910.2141079-5-dmitry.baryshkov@linaro.org
[fixup tracepoint compile warns/err]
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c

@@ -43,16 +43,6 @@ static void dpu_core_irq_callback_handler(void *arg, int irq_idx)
 	spin_unlock_irqrestore(&dpu_kms->irq_obj.cb_lock, irq_flags);
 }
 
-int dpu_core_irq_idx_lookup(struct dpu_kms *dpu_kms,
-		enum dpu_intr_type intr_type, u32 instance_idx)
-{
-	if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.irq_idx_lookup)
-		return -EINVAL;
-
-	return dpu_kms->hw_intr->ops.irq_idx_lookup(dpu_kms->hw_intr,
-			intr_type, instance_idx);
-}
-
 /**
  * _dpu_core_irq_enable - enable core interrupt given by the index
  * @dpu_kms:		Pointer to dpu kms context
@@ -70,7 +60,7 @@ static int _dpu_core_irq_enable(struct dpu_kms *dpu_kms, int irq_idx)
 		return -EINVAL;
 	}
 
-	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->irq_idx_tbl_size) {
+	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
 		DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
@@ -133,7 +123,7 @@ static int _dpu_core_irq_disable(struct dpu_kms *dpu_kms, int irq_idx)
 		return -EINVAL;
 	}
 
-	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->irq_idx_tbl_size) {
+	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
 		DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
@@ -208,7 +198,7 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx,
 		return -EINVAL;
 	}
 
-	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->irq_idx_tbl_size) {
+	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
 		DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
@@ -243,7 +233,7 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx,
 		return -EINVAL;
 	}
 
-	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->irq_idx_tbl_size) {
+	if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
 		DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
@@ -328,7 +318,7 @@ void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms)
 	spin_lock_init(&dpu_kms->irq_obj.cb_lock);
 
 	/* Create irq callbacks for all possible irq_idx */
-	dpu_kms->irq_obj.total_irqs = dpu_kms->hw_intr->irq_idx_tbl_size;
+	dpu_kms->irq_obj.total_irqs = dpu_kms->hw_intr->total_irqs;
 	dpu_kms->irq_obj.irq_cb_tbl = kcalloc(dpu_kms->irq_obj.total_irqs,
 			sizeof(struct list_head), GFP_KERNEL);
 	dpu_kms->irq_obj.enable_counts = kcalloc(dpu_kms->irq_obj.total_irqs,

drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h

@@ -29,19 +29,6 @@ void dpu_core_irq_uninstall(struct dpu_kms *dpu_kms);
  */
 irqreturn_t dpu_core_irq(struct dpu_kms *dpu_kms);
 
-/**
- * dpu_core_irq_idx_lookup - IRQ helper function for lookup irq_idx from HW
- *                      interrupt mapping table.
- * @dpu_kms:		DPU handle
- * @intr_type:		DPU HW interrupt type for lookup
- * @instance_idx:	DPU HW block instance defined in dpu_hw_mdss.h
- * @return:		irq_idx or -EINVAL when fail to lookup
- */
-int dpu_core_irq_idx_lookup(
-		struct dpu_kms *dpu_kms,
-		enum dpu_intr_type intr_type,
-		uint32_t instance_idx);
-
 /**
  * dpu_core_irq_enable - IRQ helper function for enabling one or more IRQs
  * @dpu_kms:		DPU handle

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c

@@ -254,7 +254,7 @@ void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc,
 }
 
 static int dpu_encoder_helper_wait_event_timeout(int32_t drm_id,
-		int32_t hw_id, struct dpu_encoder_wait_info *info);
+		u32 irq_idx, struct dpu_encoder_wait_info *info);
 
 int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 		enum dpu_intr_idx intr_idx,
@@ -274,27 +274,27 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 
 	/* return EWOULDBLOCK since we know the wait isn't necessary */
 	if (phys_enc->enable_state == DPU_ENC_DISABLED) {
-		DRM_ERROR("encoder is disabled id=%u, intr=%d, hw=%d, irq=%d",
-			  DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_ERROR("encoder is disabled id=%u, intr=%d, irq=%d",
+			  DRMID(phys_enc->parent), intr_idx,
 			  irq->irq_idx);
 		return -EWOULDBLOCK;
 	}
 
 	if (irq->irq_idx < 0) {
-		DRM_DEBUG_KMS("skip irq wait id=%u, intr=%d, hw=%d, irq=%s",
-			      DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_DEBUG_KMS("skip irq wait id=%u, intr=%d, irq=%s",
+			      DRMID(phys_enc->parent), intr_idx,
 			      irq->name);
 		return 0;
 	}
 
-	DRM_DEBUG_KMS("id=%u, intr=%d, hw=%d, irq=%d, pp=%d, pending_cnt=%d",
-		      DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+	DRM_DEBUG_KMS("id=%u, intr=%d, irq=%d, pp=%d, pending_cnt=%d",
+		      DRMID(phys_enc->parent), intr_idx,
 		      irq->irq_idx, phys_enc->hw_pp->idx - PINGPONG_0,
 		      atomic_read(wait_info->atomic_cnt));
 
 	ret = dpu_encoder_helper_wait_event_timeout(
 			DRMID(phys_enc->parent),
-			irq->hw_idx,
+			irq->irq_idx,
 			wait_info);
 
 	if (ret <= 0) {
@@ -304,9 +304,9 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 			unsigned long flags;
 
 			DRM_DEBUG_KMS("irq not triggered id=%u, intr=%d, "
-				      "hw=%d, irq=%d, pp=%d, atomic_cnt=%d",
+				      "irq=%d, pp=%d, atomic_cnt=%d",
 				      DRMID(phys_enc->parent), intr_idx,
-				      irq->hw_idx, irq->irq_idx,
+				      irq->irq_idx,
 				      phys_enc->hw_pp->idx - PINGPONG_0,
 				      atomic_read(wait_info->atomic_cnt));
 			local_irq_save(flags);
@@ -316,16 +316,16 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 		} else {
 			ret = -ETIMEDOUT;
 			DRM_DEBUG_KMS("irq timeout id=%u, intr=%d, "
-				      "hw=%d, irq=%d, pp=%d, atomic_cnt=%d",
+				      "irq=%d, pp=%d, atomic_cnt=%d",
 				      DRMID(phys_enc->parent), intr_idx,
-				      irq->hw_idx, irq->irq_idx,
+				      irq->irq_idx,
 				      phys_enc->hw_pp->idx - PINGPONG_0,
 				      atomic_read(wait_info->atomic_cnt));
 		}
 	} else {
 		ret = 0;
 		trace_dpu_enc_irq_wait_success(DRMID(phys_enc->parent),
-			intr_idx, irq->hw_idx, irq->irq_idx,
+			intr_idx, irq->irq_idx,
 			phys_enc->hw_pp->idx - PINGPONG_0,
 			atomic_read(wait_info->atomic_cnt));
 	}
@@ -345,19 +345,9 @@ int dpu_encoder_helper_register_irq(struct dpu_encoder_phys *phys_enc,
 	}
 	irq = &phys_enc->irq[intr_idx];
 
-	if (irq->irq_idx >= 0) {
-		DPU_DEBUG_PHYS(phys_enc,
-				"skipping already registered irq %s type %d\n",
-				irq->name, irq->intr_type);
-		return 0;
-	}
-
-	irq->irq_idx = dpu_core_irq_idx_lookup(phys_enc->dpu_kms,
-			irq->intr_type, irq->hw_idx);
 	if (irq->irq_idx < 0) {
 		DPU_ERROR_PHYS(phys_enc,
-			"failed to lookup IRQ index for %s type:%d\n",
-			irq->name, irq->intr_type);
+			"invalid IRQ index:%d\n", irq->irq_idx);
 		return -EINVAL;
 	}
 
@@ -373,8 +363,8 @@ int dpu_encoder_helper_register_irq(struct dpu_encoder_phys *phys_enc,
 
 	ret = dpu_core_irq_enable(phys_enc->dpu_kms, &irq->irq_idx, 1);
 	if (ret) {
-		DRM_ERROR("enable failed id=%u, intr=%d, hw=%d, irq=%d",
-			  DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_ERROR("enable failed id=%u, intr=%d, irq=%d",
+			  DRMID(phys_enc->parent), intr_idx,
 			  irq->irq_idx);
 		dpu_core_irq_unregister_callback(phys_enc->dpu_kms,
 				irq->irq_idx, &irq->cb);
@@ -383,7 +373,7 @@ int dpu_encoder_helper_register_irq(struct dpu_encoder_phys *phys_enc,
 	}
 
 	trace_dpu_enc_irq_register_success(DRMID(phys_enc->parent), intr_idx,
-				irq->hw_idx, irq->irq_idx);
+				irq->irq_idx);
 
 	return ret;
 }
@@ -398,31 +388,29 @@ int dpu_encoder_helper_unregister_irq(struct dpu_encoder_phys *phys_enc,
 
 	/* silently skip irqs that weren't registered */
 	if (irq->irq_idx < 0) {
-		DRM_ERROR("duplicate unregister id=%u, intr=%d, hw=%d, irq=%d",
-			  DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_ERROR("duplicate unregister id=%u, intr=%d, irq=%d",
+			  DRMID(phys_enc->parent), intr_idx,
 			  irq->irq_idx);
 		return 0;
 	}
 
 	ret = dpu_core_irq_disable(phys_enc->dpu_kms, &irq->irq_idx, 1);
 	if (ret) {
-		DRM_ERROR("disable failed id=%u, intr=%d, hw=%d, irq=%d ret=%d",
-			  DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_ERROR("disable failed id=%u, intr=%d, irq=%d ret=%d",
+			  DRMID(phys_enc->parent), intr_idx,
 			  irq->irq_idx, ret);
 	}
 
 	ret = dpu_core_irq_unregister_callback(phys_enc->dpu_kms, irq->irq_idx,
 			&irq->cb);
 	if (ret) {
-		DRM_ERROR("unreg cb fail id=%u, intr=%d, hw=%d, irq=%d ret=%d",
-			  DRMID(phys_enc->parent), intr_idx, irq->hw_idx,
+		DRM_ERROR("unreg cb fail id=%u, intr=%d, irq=%d ret=%d",
+			  DRMID(phys_enc->parent), intr_idx,
 			  irq->irq_idx, ret);
 	}
 
 	trace_dpu_enc_irq_unregister_success(DRMID(phys_enc->parent), intr_idx,
-					     irq->hw_idx, irq->irq_idx);
-
-	irq->irq_idx = -EINVAL;
+					     irq->irq_idx);
 
 	return 0;
 }
@@ -1543,7 +1531,7 @@ void dpu_encoder_helper_trigger_start(struct dpu_encoder_phys *phys_enc)
 
 static int dpu_encoder_helper_wait_event_timeout(
 		int32_t drm_id,
-		int32_t hw_id,
+		u32 irq_idx,
 		struct dpu_encoder_wait_info *info)
 {
 	int rc = 0;
@@ -1556,7 +1544,7 @@ static int dpu_encoder_helper_wait_event_timeout(
 				atomic_read(info->atomic_cnt) == 0, jiffies);
 		time = ktime_to_ms(ktime_get());
 
-		trace_dpu_enc_wait_event_timeout(drm_id, hw_id, rc, time,
+		trace_dpu_enc_wait_event_timeout(drm_id, irq_idx, rc, time,
 						 expected_time,
 						 atomic_read(info->atomic_cnt));
 	/* If we timed out, counter is valid and time is less, wait again */

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h

@@ -167,7 +167,6 @@ enum dpu_intr_idx {
  * @name:		string name of interrupt
  * @intr_type:		Encoder interrupt type
  * @intr_idx:		Encoder interrupt enumeration
- * @hw_idx:		HW Block ID
  * @irq_idx:		IRQ interface lookup index from DPU IRQ framework
  *			will be -EINVAL if IRQ is not registered
  * @irq_cb:		interrupt callback
@@ -176,7 +175,6 @@ struct dpu_encoder_irq {
 	const char *name;
 	enum dpu_intr_type intr_type;
 	enum dpu_intr_idx intr_idx;
-	int hw_idx;
 	int irq_idx;
 	struct dpu_irq_callback cb;
 };

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c

@@ -144,28 +144,6 @@ static void dpu_encoder_phys_cmd_underrun_irq(void *arg, int irq_idx)
 			phys_enc);
 }
 
-static void _dpu_encoder_phys_cmd_setup_irq_hw_idx(
-		struct dpu_encoder_phys *phys_enc)
-{
-	struct dpu_encoder_irq *irq;
-
-	irq = &phys_enc->irq[INTR_IDX_CTL_START];
-	irq->hw_idx = phys_enc->hw_ctl->idx;
-	irq->irq_idx = -EINVAL;
-
-	irq = &phys_enc->irq[INTR_IDX_PINGPONG];
-	irq->hw_idx = phys_enc->hw_pp->idx;
-	irq->irq_idx = -EINVAL;
-
-	irq = &phys_enc->irq[INTR_IDX_RDPTR];
-	irq->hw_idx = phys_enc->hw_pp->idx;
-	irq->irq_idx = -EINVAL;
-
-	irq = &phys_enc->irq[INTR_IDX_UNDERRUN];
-	irq->hw_idx = phys_enc->intf_idx;
-	irq->irq_idx = -EINVAL;
-}
-
 static void dpu_encoder_phys_cmd_mode_set(
 		struct dpu_encoder_phys *phys_enc,
 		struct drm_display_mode *mode,
@@ -173,6 +151,7 @@ static void dpu_encoder_phys_cmd_mode_set(
 {
 	struct dpu_encoder_phys_cmd *cmd_enc =
 		to_dpu_encoder_phys_cmd(phys_enc);
+	struct dpu_encoder_irq *irq;
 
 	if (!mode || !adj_mode) {
 		DPU_ERROR("invalid args\n");
@@ -182,7 +161,17 @@ static void dpu_encoder_phys_cmd_mode_set(
 	DPU_DEBUG_CMDENC(cmd_enc, "caching mode:\n");
 	drm_mode_debug_printmodeline(adj_mode);
 
-	_dpu_encoder_phys_cmd_setup_irq_hw_idx(phys_enc);
+	irq = &phys_enc->irq[INTR_IDX_CTL_START];
+	irq->irq_idx = phys_enc->hw_ctl->caps->intr_start;
+
+	irq = &phys_enc->irq[INTR_IDX_PINGPONG];
+	irq->irq_idx = phys_enc->hw_pp->caps->intr_done;
+
+	irq = &phys_enc->irq[INTR_IDX_RDPTR];
+	irq->irq_idx = phys_enc->hw_pp->caps->intr_rdptr;
+
+	irq = &phys_enc->irq[INTR_IDX_UNDERRUN];
+	irq->irq_idx = phys_enc->hw_intf->cap->intr_underrun;
 }
 
 static int _dpu_encoder_phys_cmd_handle_ppdone_timeout(
@@ -799,7 +788,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init(
 		irq = &phys_enc->irq[i];
 		INIT_LIST_HEAD(&irq->cb.list);
 		irq->irq_idx = -EINVAL;
-		irq->hw_idx = -EINVAL;
 		irq->cb.arg = phys_enc;
 	}
 

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c

@@ -364,38 +364,24 @@ static bool dpu_encoder_phys_vid_needs_single_flush(
 	return phys_enc->split_role != ENC_ROLE_SOLO;
 }
 
-static void _dpu_encoder_phys_vid_setup_irq_hw_idx(
-		struct dpu_encoder_phys *phys_enc)
-{
-	struct dpu_encoder_irq *irq;
-
-	/*
-	 * Initialize irq->hw_idx only when irq is not registered.
-	 * Prevent invalidating irq->irq_idx as modeset may be
-	 * called many times during dfps.
-	 */
-
-	irq = &phys_enc->irq[INTR_IDX_VSYNC];
-	if (irq->irq_idx < 0)
-		irq->hw_idx = phys_enc->intf_idx;
-
-	irq = &phys_enc->irq[INTR_IDX_UNDERRUN];
-	if (irq->irq_idx < 0)
-		irq->hw_idx = phys_enc->intf_idx;
-}
-
 static void dpu_encoder_phys_vid_mode_set(
 		struct dpu_encoder_phys *phys_enc,
 		struct drm_display_mode *mode,
 		struct drm_display_mode *adj_mode)
 {
+	struct dpu_encoder_irq *irq;
+
 	if (adj_mode) {
 		phys_enc->cached_mode = *adj_mode;
 		drm_mode_debug_printmodeline(adj_mode);
 		DPU_DEBUG_VIDENC(phys_enc, "caching mode:\n");
 	}
 
-	_dpu_encoder_phys_vid_setup_irq_hw_idx(phys_enc);
+	irq = &phys_enc->irq[INTR_IDX_VSYNC];
+	irq->irq_idx = phys_enc->hw_intf->cap->intr_vsync;
+
+	irq = &phys_enc->irq[INTR_IDX_UNDERRUN];
+	irq->irq_idx = phys_enc->hw_intf->cap->intr_underrun;
 }
 
 static int dpu_encoder_phys_vid_control_vblank_irq(
@@ -642,7 +628,7 @@ static void dpu_encoder_phys_vid_irq_control(struct dpu_encoder_phys *phys_enc,
 
 	if (enable) {
 		ret = dpu_encoder_phys_vid_control_vblank_irq(phys_enc, true);
-		if (ret)
+		if (WARN_ON(ret))
 			return;
 
 		dpu_encoder_helper_register_irq(phys_enc, INTR_IDX_UNDERRUN);
@@ -744,7 +730,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init(
 		irq = &phys_enc->irq[i];
 		INIT_LIST_HEAD(&irq->cb.list);
 		irq->irq_idx = -EINVAL;
-		irq->hw_idx = -EINVAL;
 		irq->cb.arg = phys_enc;
 	}
 

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h

@@ -464,13 +464,15 @@ struct dpu_mdp_cfg {
 	struct dpu_clk_ctrl_reg clk_ctrls[DPU_CLK_CTRL_MAX];
 };
 
-/* struct dpu_mdp_cfg : MDP TOP-BLK instance info
+/* struct dpu_ctl_cfg : MDP CTL instance info
  * @id:                index identifying this block
  * @base:              register base offset to mdss
  * @features           bit mask identifying sub-blocks/features
+ * @intr_start:        interrupt index for CTL_START
  */
 struct dpu_ctl_cfg {
 	DPU_HW_BLK_INFO;
+	s32 intr_start;
 };
 
 /**
@@ -526,11 +528,15 @@ struct dpu_dspp_cfg  {
  * @id                 enum identifying this block
  * @base               register offset of this block
  * @features           bit mask identifying sub-blocks/features
+ * @intr_done:         index for PINGPONG done interrupt
+ * @intr_rdptr:        index for PINGPONG readpointer done interrupt
  * @sblk               sub-blocks information
  */
 struct dpu_pingpong_cfg  {
 	DPU_HW_BLK_INFO;
 	u32 merge_3d;
+	s32 intr_done;
+	s32 intr_rdptr;
 	const struct dpu_pingpong_sub_blks *sblk;
 };
 
@@ -555,12 +561,16 @@ struct dpu_merge_3d_cfg  {
  * @type:              Interface type(DSI, DP, HDMI)
  * @controller_id:     Controller Instance ID in case of multiple of intf type
  * @prog_fetch_lines_worst_case	Worst case latency num lines needed to prefetch
+ * @intr_underrun:	index for INTF underrun interrupt
+ * @intr_vsync:	        index for INTF VSYNC interrupt
  */
 struct dpu_intf_cfg  {
 	DPU_HW_BLK_INFO;
 	u32 type;   /* interface type*/
 	u32 controller_id;
 	u32 prog_fetch_lines_worst_case;
+	s32 intr_underrun;
+	s32 intr_vsync;
 };
 
 /**

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c

@@ -196,6 +196,8 @@ struct dpu_irq_type {
 
 /*
  * struct dpu_intr_reg -  List of DPU interrupt registers
+ *
+ * When making changes be sure to sync with dpu_hw_intr_reg
  */
 static const struct dpu_intr_reg dpu_intr_set[] = {
 	{
@@ -265,6 +267,9 @@ static const struct dpu_intr_reg dpu_intr_set[] = {
 	},
 };
 
+#define DPU_IRQ_REG(irq_idx)	(irq_idx / 32)
+#define DPU_IRQ_MASK(irq_idx)	(BIT(irq_idx % 32))
+
 /*
  * struct dpu_irq_type - IRQ mapping table use for lookup an irq_idx in this
  *			 table that have a matching interface type and
@@ -1345,23 +1350,6 @@ static const struct dpu_irq_type dpu_irq_map[] = {
 	{ DPU_IRQ_TYPE_RESERVED, 0, 0, 12},
 };
 
-static int dpu_hw_intr_irqidx_lookup(struct dpu_hw_intr *intr,
-	enum dpu_intr_type intr_type, u32 instance_idx)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(dpu_irq_map); i++) {
-		if (intr_type == dpu_irq_map[i].intr_type &&
-			instance_idx == dpu_irq_map[i].instance_idx &&
-			!(intr->obsolete_irq & BIT(dpu_irq_map[i].intr_type)))
-			return i;
-	}
-
-	pr_debug("IRQ lookup fail!! intr_type=%d, instance_idx=%d\n",
-			intr_type, instance_idx);
-	return -EINVAL;
-}
-
 static void dpu_hw_intr_clear_intr_status_nolock(struct dpu_hw_intr *intr,
 		int irq_idx)
 {
@@ -1370,9 +1358,8 @@ static void dpu_hw_intr_clear_intr_status_nolock(struct dpu_hw_intr *intr,
 	if (!intr)
 		return;
 
-	reg_idx = dpu_irq_map[irq_idx].reg_idx;
-	DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off,
-			dpu_irq_map[irq_idx].irq_mask);
+	reg_idx = DPU_IRQ_REG(irq_idx);
+	DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off, DPU_IRQ_MASK(irq_idx));
 
 	/* ensure register writes go through */
 	wmb();
@@ -1384,10 +1371,9 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr,
 {
 	int reg_idx;
 	int irq_idx;
-	int start_idx;
-	int end_idx;
 	u32 irq_status;
 	u32 enable_mask;
+	int bit;
 	unsigned long irq_flags;
 
 	if (!intr)
@@ -1400,15 +1386,7 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr,
 	 */
 	spin_lock_irqsave(&intr->irq_lock, irq_flags);
 	for (reg_idx = 0; reg_idx < ARRAY_SIZE(dpu_intr_set); reg_idx++) {
-		/*
-		 * Each Interrupt register has a range of 64 indexes, and
-		 * that is static for dpu_irq_map.
-		 */
-		start_idx = reg_idx * 64;
-		end_idx = start_idx + 64;
-
-		if (!test_bit(reg_idx, &intr->irq_mask) ||
-			start_idx >= ARRAY_SIZE(dpu_irq_map))
+		if (!test_bit(reg_idx, &intr->irq_mask))
 			continue;
 
 		/* Read interrupt status */
@@ -1425,37 +1403,33 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr,
 		/* Finally update IRQ status based on enable mask */
 		irq_status &= enable_mask;
 
+		if (!irq_status)
+			continue;
+
 		/*
-		 * Search through matching intr status from irq map.
-		 * start_idx and end_idx defined the search range in
-		 * the dpu_irq_map.
+		 * Search through matching intr status.
 		 */
-		for (irq_idx = start_idx;
-				(irq_idx < end_idx) && irq_status;
-				irq_idx++)
-			if ((irq_status & dpu_irq_map[irq_idx].irq_mask) &&
-				(dpu_irq_map[irq_idx].reg_idx == reg_idx) &&
-				!(intr->obsolete_irq &
-				BIT(dpu_irq_map[irq_idx].intr_type))) {
-				/*
-				 * Once a match on irq mask, perform a callback
-				 * to the given cbfunc. cbfunc will take care
-				 * the interrupt status clearing. If cbfunc is
-				 * not provided, then the interrupt clearing
-				 * is here.
-				 */
-				if (cbfunc)
-					cbfunc(arg, irq_idx);
-
-				dpu_hw_intr_clear_intr_status_nolock(intr, irq_idx);
-
-				/*
-				 * When callback finish, clear the irq_status
-				 * with the matching mask. Once irq_status
-				 * is all cleared, the search can be stopped.
-				 */
-				irq_status &= ~dpu_irq_map[irq_idx].irq_mask;
-			}
+		while ((bit = ffs(irq_status)) != 0) {
+			irq_idx = DPU_IRQ_IDX(reg_idx, bit - 1);
+			/*
+			 * Once a match on irq mask, perform a callback
+			 * to the given cbfunc. cbfunc will take care
+			 * the interrupt status clearing. If cbfunc is
+			 * not provided, then the interrupt clearing
+			 * is here.
+			 */
+			if (cbfunc)
+				cbfunc(arg, irq_idx);
+
+			dpu_hw_intr_clear_intr_status_nolock(intr, irq_idx);
+
+			/*
+			 * When callback finish, clear the irq_status
+			 * with the matching mask. Once irq_status
+			 * is all cleared, the search can be stopped.
+			 */
+			irq_status &= ~BIT(bit - 1);
+		}
 	}
 
 	/* ensure register writes go through */
@@ -1469,32 +1443,30 @@ static int dpu_hw_intr_enable_irq(struct dpu_hw_intr *intr, int irq_idx)
 	int reg_idx;
 	unsigned long irq_flags;
 	const struct dpu_intr_reg *reg;
-	const struct dpu_irq_type *irq;
 	const char *dbgstr = NULL;
 	uint32_t cache_irq_mask;
 
 	if (!intr)
 		return -EINVAL;
 
-	if (irq_idx < 0 || irq_idx >= ARRAY_SIZE(dpu_irq_map)) {
+	if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
 		pr_err("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
 
-	irq = &dpu_irq_map[irq_idx];
-	reg_idx = irq->reg_idx;
+	reg_idx = DPU_IRQ_REG(irq_idx);
 	reg = &dpu_intr_set[reg_idx];
 
 	spin_lock_irqsave(&intr->irq_lock, irq_flags);
 	cache_irq_mask = intr->cache_irq_mask[reg_idx];
-	if (cache_irq_mask & irq->irq_mask) {
+	if (cache_irq_mask & DPU_IRQ_MASK(irq_idx)) {
 		dbgstr = "DPU IRQ already set:";
 	} else {
 		dbgstr = "DPU IRQ enabled:";
 
-		cache_irq_mask |= irq->irq_mask;
+		cache_irq_mask |= DPU_IRQ_MASK(irq_idx);
 		/* Cleaning any pending interrupt */
-		DPU_REG_WRITE(&intr->hw, reg->clr_off, irq->irq_mask);
+		DPU_REG_WRITE(&intr->hw, reg->clr_off, DPU_IRQ_MASK(irq_idx));
 		/* Enabling interrupts with the new mask */
 		DPU_REG_WRITE(&intr->hw, reg->en_off, cache_irq_mask);
 
@@ -1505,8 +1477,8 @@ static int dpu_hw_intr_enable_irq(struct dpu_hw_intr *intr, int irq_idx)
 	}
 	spin_unlock_irqrestore(&intr->irq_lock, irq_flags);
 
-	pr_debug("%s MASK:0x%.8x, CACHE-MASK:0x%.8x\n", dbgstr,
-			irq->irq_mask, cache_irq_mask);
+	pr_debug("%s MASK:0x%.8lx, CACHE-MASK:0x%.8x\n", dbgstr,
+			DPU_IRQ_MASK(irq_idx), cache_irq_mask);
 
 	return 0;
 }
@@ -1515,33 +1487,31 @@ static int dpu_hw_intr_disable_irq_nolock(struct dpu_hw_intr *intr, int irq_idx)
 {
 	int reg_idx;
 	const struct dpu_intr_reg *reg;
-	const struct dpu_irq_type *irq;
 	const char *dbgstr = NULL;
 	uint32_t cache_irq_mask;
 
 	if (!intr)
 		return -EINVAL;
 
-	if (irq_idx < 0 || irq_idx >= ARRAY_SIZE(dpu_irq_map)) {
+	if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
 		pr_err("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
 
-	irq = &dpu_irq_map[irq_idx];
-	reg_idx = irq->reg_idx;
+	reg_idx = DPU_IRQ_REG(irq_idx);
 	reg = &dpu_intr_set[reg_idx];
 
 	cache_irq_mask = intr->cache_irq_mask[reg_idx];
-	if ((cache_irq_mask & irq->irq_mask) == 0) {
+	if ((cache_irq_mask & DPU_IRQ_MASK(irq_idx)) == 0) {
 		dbgstr = "DPU IRQ is already cleared:";
 	} else {
 		dbgstr = "DPU IRQ mask disable:";
 
-		cache_irq_mask &= ~irq->irq_mask;
+		cache_irq_mask &= ~DPU_IRQ_MASK(irq_idx);
 		/* Disable interrupts based on the new mask */
 		DPU_REG_WRITE(&intr->hw, reg->en_off, cache_irq_mask);
 		/* Cleaning any pending interrupt */
-		DPU_REG_WRITE(&intr->hw, reg->clr_off, irq->irq_mask);
+		DPU_REG_WRITE(&intr->hw, reg->clr_off, DPU_IRQ_MASK(irq_idx));
 
 		/* ensure register write goes through */
 		wmb();
@@ -1549,8 +1519,8 @@ static int dpu_hw_intr_disable_irq_nolock(struct dpu_hw_intr *intr, int irq_idx)
 		intr->cache_irq_mask[reg_idx] = cache_irq_mask;
 	}
 
-	pr_debug("%s MASK:0x%.8x, CACHE-MASK:0x%.8x\n", dbgstr,
-			irq->irq_mask, cache_irq_mask);
+	pr_debug("%s MASK:0x%.8lx, CACHE-MASK:0x%.8x\n", dbgstr,
+			DPU_IRQ_MASK(irq_idx), cache_irq_mask);
 
 	return 0;
 }
@@ -1562,7 +1532,7 @@ static int dpu_hw_intr_disable_irq(struct dpu_hw_intr *intr, int irq_idx)
 	if (!intr)
 		return -EINVAL;
 
-	if (irq_idx < 0 || irq_idx >= ARRAY_SIZE(dpu_irq_map)) {
+	if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
 		pr_err("invalid IRQ index: [%d]\n", irq_idx);
 		return -EINVAL;
 	}
@@ -1622,17 +1592,17 @@ static u32 dpu_hw_intr_get_interrupt_status(struct dpu_hw_intr *intr,
 	if (!intr)
 		return 0;
 
-	if (irq_idx >= ARRAY_SIZE(dpu_irq_map) || irq_idx < 0) {
+	if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
 		pr_err("invalid IRQ index: [%d]\n", irq_idx);
 		return 0;
 	}
 
 	spin_lock_irqsave(&intr->irq_lock, irq_flags);
 
-	reg_idx = dpu_irq_map[irq_idx].reg_idx;
+	reg_idx = DPU_IRQ_REG(irq_idx);
 	intr_status = DPU_REG_READ(&intr->hw,
 			dpu_intr_set[reg_idx].status_off) &
-					dpu_irq_map[irq_idx].irq_mask;
+		DPU_IRQ_MASK(irq_idx);
 	if (intr_status && clear)
 		DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off,
 				intr_status);
@@ -1647,7 +1617,6 @@ static u32 dpu_hw_intr_get_interrupt_status(struct dpu_hw_intr *intr,
 
 static void __setup_intr_ops(struct dpu_hw_intr_ops *ops)
 {
-	ops->irq_idx_lookup = dpu_hw_intr_irqidx_lookup;
 	ops->enable_irq = dpu_hw_intr_enable_irq;
 	ops->disable_irq = dpu_hw_intr_disable_irq;
 	ops->dispatch_irqs = dpu_hw_intr_dispatch_irq;
@@ -1679,7 +1648,7 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
 	__intr_offset(m, addr, &intr->hw);
 	__setup_intr_ops(&intr->ops);
 
-	intr->irq_idx_tbl_size = ARRAY_SIZE(dpu_irq_map);
+	intr->total_irqs = ARRAY_SIZE(dpu_intr_set) * 32;
 
 	intr->cache_irq_mask = kcalloc(ARRAY_SIZE(dpu_intr_set), sizeof(u32),
 			GFP_KERNEL);

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h

@@ -92,23 +92,14 @@ enum dpu_hw_intr_reg {
 	MDP_INTR_MAX,
 };
 
+#define DPU_IRQ_IDX(reg_idx, offset)	(reg_idx * 32 + offset)
+
 struct dpu_hw_intr;
 
 /**
  * Interrupt operations.
  */
 struct dpu_hw_intr_ops {
-	/**
-	 * irq_idx_lookup - Lookup IRQ index on the HW interrupt type
-	 *                 Used for all irq related ops
-	 * @intr:		HW interrupt handle
-	 * @intr_type:		Interrupt type defined in dpu_intr_type
-	 * @instance_idx:	HW interrupt block instance
-	 * @return:		irq_idx or -EINVAL for lookup fail
-	 */
-	int (*irq_idx_lookup)(struct dpu_hw_intr *intr,
-			enum dpu_intr_type intr_type,
-			u32 instance_idx);
 
 	/**
 	 * enable_irq - Enable IRQ based on lookup IRQ index
@@ -179,7 +170,7 @@ struct dpu_hw_intr_ops {
  * @ops:              function pointer mapping for IRQ handling
  * @cache_irq_mask:   array of IRQ enable masks reg storage created during init
  * @save_irq_status:  array of IRQ status reg storage created during init
- * @irq_idx_tbl_size: total number of irq_idx mapped in the hw_interrupts
+ * @total_irqs: total number of irq_idx mapped in the hw_interrupts
  * @irq_lock:         spinlock for accessing IRQ resources
  * @obsolete_irq:      irq types that are obsolete for a particular target
  */
@@ -188,7 +179,7 @@ struct dpu_hw_intr {
 	struct dpu_hw_intr_ops ops;
 	u32 *cache_irq_mask;
 	u32 *save_irq_status;
-	u32 irq_idx_tbl_size;
+	u32 total_irqs;
 	spinlock_t irq_lock;
 	unsigned long irq_mask;
 	unsigned long obsolete_irq;

drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h

@@ -168,44 +168,41 @@ TRACE_EVENT(dpu_perf_crtc_update,
 );
 
 DECLARE_EVENT_CLASS(dpu_enc_irq_template,
-	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx, int hw_idx,
+	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx,
 		 int irq_idx),
-	TP_ARGS(drm_id, intr_idx, hw_idx, irq_idx),
+	TP_ARGS(drm_id, intr_idx, irq_idx),
 	TP_STRUCT__entry(
 		__field(	uint32_t,		drm_id		)
 		__field(	enum dpu_intr_idx,	intr_idx	)
-		__field(	int,			hw_idx		)
 		__field(	int,			irq_idx		)
 	),
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
 		__entry->intr_idx = intr_idx;
-		__entry->hw_idx = hw_idx;
 		__entry->irq_idx = irq_idx;
 	),
-	TP_printk("id=%u, intr=%d, hw=%d, irq=%d",
-		  __entry->drm_id, __entry->intr_idx, __entry->hw_idx,
+	TP_printk("id=%u, intr=%d, irq=%d",
+		  __entry->drm_id, __entry->intr_idx,
 		  __entry->irq_idx)
 );
 DEFINE_EVENT(dpu_enc_irq_template, dpu_enc_irq_register_success,
-	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx, int hw_idx,
+	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx,
 		 int irq_idx),
-	TP_ARGS(drm_id, intr_idx, hw_idx, irq_idx)
+	TP_ARGS(drm_id, intr_idx, irq_idx)
 );
 DEFINE_EVENT(dpu_enc_irq_template, dpu_enc_irq_unregister_success,
-	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx, int hw_idx,
+	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx,
 		 int irq_idx),
-	TP_ARGS(drm_id, intr_idx, hw_idx, irq_idx)
+	TP_ARGS(drm_id, intr_idx, irq_idx)
 );
 
 TRACE_EVENT(dpu_enc_irq_wait_success,
-	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx, int hw_idx,
+	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx,
 		 int irq_idx, enum dpu_pingpong pp_idx, int atomic_cnt),
-	TP_ARGS(drm_id, intr_idx, hw_idx, irq_idx, pp_idx, atomic_cnt),
+	TP_ARGS(drm_id, intr_idx, irq_idx, pp_idx, atomic_cnt),
 	TP_STRUCT__entry(
 		__field(	uint32_t,		drm_id		)
 		__field(	enum dpu_intr_idx,	intr_idx	)
-		__field(	int,			hw_idx		)
 		__field(	int,			irq_idx		)
 		__field(	enum dpu_pingpong,	pp_idx		)
 		__field(	int,			atomic_cnt	)
@@ -213,13 +210,12 @@ TRACE_EVENT(dpu_enc_irq_wait_success,
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
 		__entry->intr_idx = intr_idx;
-		__entry->hw_idx = hw_idx;
 		__entry->irq_idx = irq_idx;
 		__entry->pp_idx = pp_idx;
 		__entry->atomic_cnt = atomic_cnt;
 	),
-	TP_printk("id=%u, intr=%d, hw=%d, irq=%d, pp=%d, atomic_cnt=%d",
-		  __entry->drm_id, __entry->intr_idx, __entry->hw_idx,
+	TP_printk("id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d",
+		  __entry->drm_id, __entry->intr_idx,
 		  __entry->irq_idx, __entry->pp_idx, __entry->atomic_cnt)
 );
 
@@ -514,12 +510,12 @@ DEFINE_EVENT(dpu_id_event_template, dpu_crtc_frame_event_more_pending,
 );
 
 TRACE_EVENT(dpu_enc_wait_event_timeout,
-	TP_PROTO(uint32_t drm_id, int32_t hw_id, int rc, s64 time,
+	TP_PROTO(uint32_t drm_id, int irq_idx, int rc, s64 time,
 		 s64 expected_time, int atomic_cnt),
-	TP_ARGS(drm_id, hw_id, rc, time, expected_time, atomic_cnt),
+	TP_ARGS(drm_id, irq_idx, rc, time, expected_time, atomic_cnt),
 	TP_STRUCT__entry(
 		__field(	uint32_t,	drm_id		)
-		__field(	int32_t,	hw_id		)
+		__field(	int,		irq_idx		)
 		__field(	int,		rc		)
 		__field(	s64,		time		)
 		__field(	s64,		expected_time	)
@@ -527,14 +523,14 @@ TRACE_EVENT(dpu_enc_wait_event_timeout,
 	),
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
-		__entry->hw_id = hw_id;
+		__entry->irq_idx = irq_idx;
 		__entry->rc = rc;
 		__entry->time = time;
 		__entry->expected_time = expected_time;
 		__entry->atomic_cnt = atomic_cnt;
 	),
-	TP_printk("id=%u, hw_id=%d, rc=%d, time=%lld, expected=%lld cnt=%d",
-		  __entry->drm_id, __entry->hw_id, __entry->rc, __entry->time,
+	TP_printk("id=%u, irq_idx=%d, rc=%d, time=%lld, expected=%lld cnt=%d",
+		  __entry->drm_id, __entry->irq_idx, __entry->rc, __entry->time,
 		  __entry->expected_time, __entry->atomic_cnt)
 );