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For each IRQ we have a constant IRQ callback. This change simplifies code review as the reader no longer needs to remember which function is called. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 28 +++---- .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 21 +----- .../drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 73 +++++++------------ .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 42 ++++------- 4 files changed, 58 insertions(+), 106 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index dbcbf96cf8eb..83b6715820fa 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -261,9 +261,10 @@ static int dpu_encoder_helper_wait_event_timeout(int32_t drm_id, int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, enum dpu_intr_idx intr_idx, + void (*func)(void *arg, int irq_idx), struct dpu_encoder_wait_info *wait_info) { - struct dpu_encoder_irq *irq; + int irq; u32 irq_status; int ret; @@ -271,7 +272,7 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, DPU_ERROR("invalid params\n"); return -EINVAL; } - irq = &phys_enc->irq[intr_idx]; + irq = phys_enc->irq[intr_idx]; /* note: do master / slave checking outside */ @@ -279,53 +280,52 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, if (phys_enc->enable_state == DPU_ENC_DISABLED) { DRM_ERROR("encoder is disabled id=%u, intr=%d, irq=%d\n", DRMID(phys_enc->parent), intr_idx, - irq->irq_idx); + irq); return -EWOULDBLOCK; } - if (irq->irq_idx < 0) { - DRM_DEBUG_KMS("skip irq wait id=%u, intr=%d, irq=%s\n", - DRMID(phys_enc->parent), intr_idx, - irq->name); + if (irq < 0) { + DRM_DEBUG_KMS("skip irq wait id=%u, intr=%d\n", + DRMID(phys_enc->parent), intr_idx); return 0; } DRM_DEBUG_KMS("id=%u, intr=%d, irq=%d, pp=%d, pending_cnt=%d\n", DRMID(phys_enc->parent), intr_idx, - irq->irq_idx, phys_enc->hw_pp->idx - PINGPONG_0, + irq, 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->irq_idx, + irq, wait_info); if (ret <= 0) { - irq_status = dpu_core_irq_read(phys_enc->dpu_kms, irq->irq_idx); + irq_status = dpu_core_irq_read(phys_enc->dpu_kms, irq); if (irq_status) { unsigned long flags; DRM_DEBUG_KMS("irq not triggered id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d\n", DRMID(phys_enc->parent), intr_idx, - irq->irq_idx, + irq, phys_enc->hw_pp->idx - PINGPONG_0, atomic_read(wait_info->atomic_cnt)); local_irq_save(flags); - irq->func(phys_enc, irq->irq_idx); + func(phys_enc, irq); local_irq_restore(flags); ret = 0; } else { ret = -ETIMEDOUT; DRM_DEBUG_KMS("irq timeout id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d\n", DRMID(phys_enc->parent), intr_idx, - irq->irq_idx, + irq, 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->irq_idx, + intr_idx, irq, phys_enc->hw_pp->idx - PINGPONG_0, atomic_read(wait_info->atomic_cnt)); } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h index ff2218155b44..803fd6f25da1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h @@ -162,21 +162,6 @@ enum dpu_intr_idx { INTR_IDX_MAX, }; -/** - * dpu_encoder_irq - tracking structure for interrupts - * @name: string name of interrupt - * @intr_idx: Encoder interrupt enumeration - * @irq_idx: IRQ interface lookup index from DPU IRQ framework - * will be -EINVAL if IRQ is not registered - * @irq_cb: interrupt callback - */ -struct dpu_encoder_irq { - const char *name; - enum dpu_intr_idx intr_idx; - int irq_idx; - void (*func)(void *arg, int irq_idx); -}; - /** * struct dpu_encoder_phys - physical encoder that drives a single INTF block * tied to a specific panel / sub-panel. Abstract type, sub-classed by @@ -207,7 +192,7 @@ struct dpu_encoder_irq { * @pending_ctlstart_cnt: Atomic counter tracking the number of ctl start * pending. * @pending_kickoff_wq: Wait queue for blocking until kickoff completes - * @irq: IRQ tracking structures + * @irq: IRQ indices */ struct dpu_encoder_phys { struct drm_encoder *parent; @@ -231,7 +216,7 @@ struct dpu_encoder_phys { atomic_t pending_ctlstart_cnt; atomic_t pending_kickoff_cnt; wait_queue_head_t pending_kickoff_wq; - struct dpu_encoder_irq irq[INTR_IDX_MAX]; + int irq[INTR_IDX_MAX]; }; static inline int dpu_encoder_phys_inc_pending(struct dpu_encoder_phys *phys) @@ -357,11 +342,13 @@ void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc, * note: will call dpu_encoder_helper_wait_for_irq on timeout * @phys_enc: Pointer to physical encoder structure * @intr_idx: encoder interrupt index + * @func: IRQ callback to be called in case of timeout * @wait_info: wait info struct * @Return: 0 or -ERROR */ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, enum dpu_intr_idx intr_idx, + void (*func)(void *arg, int irq_idx), struct dpu_encoder_wait_info *wait_info); #endif /* __dpu_encoder_phys_H__ */ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c index ca7d557312ff..7f5b7f0fff2e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c @@ -151,7 +151,6 @@ 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"); @@ -161,17 +160,13 @@ static void dpu_encoder_phys_cmd_mode_set( DPU_DEBUG_CMDENC(cmd_enc, "caching mode:\n"); drm_mode_debug_printmodeline(adj_mode); - irq = &phys_enc->irq[INTR_IDX_CTL_START]; - irq->irq_idx = phys_enc->hw_ctl->caps->intr_start; + phys_enc->irq[INTR_IDX_CTL_START] = phys_enc->hw_ctl->caps->intr_start; - irq = &phys_enc->irq[INTR_IDX_PINGPONG]; - irq->irq_idx = phys_enc->hw_pp->caps->intr_done; + phys_enc->irq[INTR_IDX_PINGPONG] = phys_enc->hw_pp->caps->intr_done; - irq = &phys_enc->irq[INTR_IDX_RDPTR]; - irq->irq_idx = phys_enc->hw_pp->caps->intr_rdptr; + phys_enc->irq[INTR_IDX_RDPTR] = phys_enc->hw_pp->caps->intr_rdptr; - irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; - irq->irq_idx = phys_enc->hw_intf->cap->intr_underrun; + phys_enc->irq[INTR_IDX_UNDERRUN] = phys_enc->hw_intf->cap->intr_underrun; } static int _dpu_encoder_phys_cmd_handle_ppdone_timeout( @@ -212,7 +207,7 @@ static int _dpu_encoder_phys_cmd_handle_ppdone_timeout( atomic_read(&phys_enc->pending_kickoff_cnt)); msm_disp_snapshot_state(drm_enc->dev); dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_RDPTR].irq_idx); + phys_enc->irq[INTR_IDX_RDPTR]); } atomic_add_unless(&phys_enc->pending_kickoff_cnt, -1, 0); @@ -240,6 +235,7 @@ static int _dpu_encoder_phys_cmd_wait_for_idle( wait_info.timeout_ms = KICKOFF_TIMEOUT_MS; ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_PINGPONG, + dpu_encoder_phys_cmd_pp_tx_done_irq, &wait_info); if (ret == -ETIMEDOUT) _dpu_encoder_phys_cmd_handle_ppdone_timeout(phys_enc); @@ -279,11 +275,12 @@ static int dpu_encoder_phys_cmd_control_vblank_irq( if (enable && atomic_inc_return(&phys_enc->vblank_refcount) == 1) ret = dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_RDPTR].irq_idx, - phys_enc->irq[INTR_IDX_RDPTR].func, phys_enc); + phys_enc->irq[INTR_IDX_RDPTR], + dpu_encoder_phys_cmd_pp_rd_ptr_irq, + phys_enc); else if (!enable && atomic_dec_return(&phys_enc->vblank_refcount) == 0) ret = dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_RDPTR].irq_idx); + phys_enc->irq[INTR_IDX_RDPTR]); end: if (ret) { @@ -305,27 +302,30 @@ static void dpu_encoder_phys_cmd_irq_control(struct dpu_encoder_phys *phys_enc, if (enable) { dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_PINGPONG].irq_idx, - phys_enc->irq[INTR_IDX_PINGPONG].func, phys_enc); + phys_enc->irq[INTR_IDX_PINGPONG], + dpu_encoder_phys_cmd_pp_tx_done_irq, + phys_enc); dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_UNDERRUN].irq_idx, - phys_enc->irq[INTR_IDX_UNDERRUN].func, phys_enc); + phys_enc->irq[INTR_IDX_UNDERRUN], + dpu_encoder_phys_cmd_underrun_irq, + phys_enc); dpu_encoder_phys_cmd_control_vblank_irq(phys_enc, true); if (dpu_encoder_phys_cmd_is_master(phys_enc)) dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_CTL_START].irq_idx, - phys_enc->irq[INTR_IDX_CTL_START].func, phys_enc); + phys_enc->irq[INTR_IDX_CTL_START], + dpu_encoder_phys_cmd_ctl_start_irq, + phys_enc); } else { if (dpu_encoder_phys_cmd_is_master(phys_enc)) dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_CTL_START].irq_idx); + phys_enc->irq[INTR_IDX_CTL_START]); dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_UNDERRUN].irq_idx); + phys_enc->irq[INTR_IDX_UNDERRUN]); dpu_encoder_phys_cmd_control_vblank_irq(phys_enc, false); dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_PINGPONG].irq_idx); + phys_enc->irq[INTR_IDX_PINGPONG]); } } @@ -660,6 +660,7 @@ static int _dpu_encoder_phys_cmd_wait_for_ctl_start( wait_info.timeout_ms = KICKOFF_TIMEOUT_MS; ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_CTL_START, + dpu_encoder_phys_cmd_ctl_start_irq, &wait_info); if (ret == -ETIMEDOUT) { DPU_ERROR_CMDENC(cmd_enc, "ctl start interrupt wait failed\n"); @@ -715,6 +716,7 @@ static int dpu_encoder_phys_cmd_wait_for_vblank( atomic_inc(&cmd_enc->pending_vblank_cnt); rc = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_RDPTR, + dpu_encoder_phys_cmd_pp_rd_ptr_irq, &wait_info); return rc; @@ -766,7 +768,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init( { struct dpu_encoder_phys *phys_enc = NULL; struct dpu_encoder_phys_cmd *cmd_enc = NULL; - struct dpu_encoder_irq *irq; int i, ret = 0; DPU_DEBUG("intf %d\n", p->intf_idx - INTF_0); @@ -790,30 +791,8 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init( phys_enc->enc_spinlock = p->enc_spinlock; cmd_enc->stream_sel = 0; phys_enc->enable_state = DPU_ENC_DISABLED; - for (i = 0; i < INTR_IDX_MAX; i++) { - irq = &phys_enc->irq[i]; - irq->irq_idx = -EINVAL; - } - - irq = &phys_enc->irq[INTR_IDX_CTL_START]; - irq->name = "ctl_start"; - irq->intr_idx = INTR_IDX_CTL_START; - irq->func = dpu_encoder_phys_cmd_ctl_start_irq; - - irq = &phys_enc->irq[INTR_IDX_PINGPONG]; - irq->name = "pp_done"; - irq->intr_idx = INTR_IDX_PINGPONG; - irq->func = dpu_encoder_phys_cmd_pp_tx_done_irq; - - irq = &phys_enc->irq[INTR_IDX_RDPTR]; - irq->name = "pp_rd_ptr"; - irq->intr_idx = INTR_IDX_RDPTR; - irq->func = dpu_encoder_phys_cmd_pp_rd_ptr_irq; - - irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; - irq->name = "underrun"; - irq->intr_idx = INTR_IDX_UNDERRUN; - irq->func = dpu_encoder_phys_cmd_underrun_irq; + for (i = 0; i < ARRAY_SIZE(phys_enc->irq); i++) + phys_enc->irq[i] = -EINVAL; atomic_set(&phys_enc->vblank_refcount, 0); atomic_set(&phys_enc->pending_kickoff_cnt, 0); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c index 50c063de1509..1a319d56c879 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c @@ -366,19 +366,15 @@ static void dpu_encoder_phys_vid_mode_set( 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"); } - irq = &phys_enc->irq[INTR_IDX_VSYNC]; - irq->irq_idx = phys_enc->hw_intf->cap->intr_vsync; + phys_enc->irq[INTR_IDX_VSYNC] = phys_enc->hw_intf->cap->intr_vsync; - irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; - irq->irq_idx = phys_enc->hw_intf->cap->intr_underrun; + phys_enc->irq[INTR_IDX_UNDERRUN] = phys_enc->hw_intf->cap->intr_underrun; } static int dpu_encoder_phys_vid_control_vblank_irq( @@ -405,11 +401,12 @@ static int dpu_encoder_phys_vid_control_vblank_irq( if (enable && atomic_inc_return(&phys_enc->vblank_refcount) == 1) ret = dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_VSYNC].irq_idx, - phys_enc->irq[INTR_IDX_VSYNC].func, phys_enc); + phys_enc->irq[INTR_IDX_VSYNC], + dpu_encoder_phys_vid_vblank_irq, + phys_enc); else if (!enable && atomic_dec_return(&phys_enc->vblank_refcount) == 0) ret = dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_VSYNC].irq_idx); + phys_enc->irq[INTR_IDX_VSYNC]); end: if (ret) { @@ -490,6 +487,7 @@ static int dpu_encoder_phys_vid_wait_for_vblank( /* Wait for kickoff to complete */ ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_VSYNC, + dpu_encoder_phys_vid_vblank_irq, &wait_info); if (ret == -ETIMEDOUT) { @@ -542,7 +540,7 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff( ctl->idx, rc); msm_disp_snapshot_state(drm_enc->dev); dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_VSYNC].irq_idx); + phys_enc->irq[INTR_IDX_VSYNC]); } } @@ -632,12 +630,13 @@ static void dpu_encoder_phys_vid_irq_control(struct dpu_encoder_phys *phys_enc, return; dpu_core_irq_register_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_UNDERRUN].irq_idx, - phys_enc->irq[INTR_IDX_UNDERRUN].func, phys_enc); + phys_enc->irq[INTR_IDX_UNDERRUN], + dpu_encoder_phys_vid_underrun_irq, + phys_enc); } else { dpu_encoder_phys_vid_control_vblank_irq(phys_enc, false); dpu_core_irq_unregister_callback(phys_enc->dpu_kms, - phys_enc->irq[INTR_IDX_UNDERRUN].irq_idx); + phys_enc->irq[INTR_IDX_UNDERRUN]); } } @@ -703,7 +702,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init( struct dpu_enc_phys_init_params *p) { struct dpu_encoder_phys *phys_enc = NULL; - struct dpu_encoder_irq *irq; int i; if (!p) { @@ -729,20 +727,8 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init( phys_enc->split_role = p->split_role; phys_enc->intf_mode = INTF_MODE_VIDEO; phys_enc->enc_spinlock = p->enc_spinlock; - for (i = 0; i < INTR_IDX_MAX; i++) { - irq = &phys_enc->irq[i]; - irq->irq_idx = -EINVAL; - } - - irq = &phys_enc->irq[INTR_IDX_VSYNC]; - irq->name = "vsync_irq"; - irq->intr_idx = INTR_IDX_VSYNC; - irq->func = dpu_encoder_phys_vid_vblank_irq; - - irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; - irq->name = "underrun"; - irq->intr_idx = INTR_IDX_UNDERRUN; - irq->func = dpu_encoder_phys_vid_underrun_irq; + for (i = 0; i < ARRAY_SIZE(phys_enc->irq); i++) + phys_enc->irq[i] = -EINVAL; atomic_set(&phys_enc->vblank_refcount, 0); atomic_set(&phys_enc->pending_kickoff_cnt, 0);