drm/msm/mdp5: Start using parameters from CRTC state

In the last few commits, we've been adding params to mdp5_crtc_state, and
assigning them in the atomic_check() funcs. Now it's time to actually
start using them.

Remove the duplicated params from the mdp5_crtc struct, and start using
them in the mdp5_crtc code. The majority of the references to these params
is in code that executes after the atomic swap has occurred, so it's okay
to use crtc->state in them. There are a couple of legacy LM cursor ops that
may not use the updated state, but (I think) it's okay to live with that.

Now that we dynamically allocate a mixer to the CRTC, we can also remove
the static assignment to it in mdp5_crtc_init, and also drop the code that
skipped init-ing WB bound mixers (those will now be rejected by
mdp5_mixer_assign()).

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

3 files changed, 64 insertions, 66 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 7913e93a1d90..c33855eeda24 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -32,12 +32,8 @@ struct mdp5_crtc {
         int id;
         bool enabled;
 
-        struct mdp5_hw_mixer *mixer;
         spinlock_t lm_lock;     /* protect REG_MDP5_LM_* registers */
 
-        /* CTL used for this CRTC: */
-        struct mdp5_ctl *ctl;
-
         /* if there is a pending flip, these will be non-null: */
         struct drm_pending_vblank_event *event;
 
@@ -59,8 +55,6 @@ struct mdp5_crtc {
 
         struct completion pp_completion;
 
-        bool cmd_mode;
-
         struct {
                 /* protect REG_MDP5_LM_CURSOR* registers and cursor scanout_bo*/
                 spinlock_t lock;
@@ -95,10 +89,11 @@ static void request_pp_done_pending(struct drm_crtc *crtc)
 
 static u32 crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+        struct mdp5_ctl *ctl = mdp5_cstate->ctl;
 
         DBG("%s: flush=%08x", crtc->name, flush_mask);
-        return mdp5_ctl_commit(mdp5_crtc->ctl, flush_mask);
+        return mdp5_ctl_commit(ctl, flush_mask);
 }
 
 /*
@@ -108,20 +103,20 @@ static u32 crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
  */
 static u32 crtc_flush_all(struct drm_crtc *crtc)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_hw_mixer *mixer;
         struct drm_plane *plane;
         uint32_t flush_mask = 0;
 
         /* this should not happen: */
-        if (WARN_ON(!mdp5_crtc->ctl))
+        if (WARN_ON(!mdp5_cstate->ctl))
                 return 0;
 
         drm_atomic_crtc_for_each_plane(plane, crtc) {
                 flush_mask |= mdp5_plane_get_flush(plane);
         }
 
-        mixer = mdp5_crtc->mixer;
+        mixer = mdp5_cstate->pipeline.mixer;
         flush_mask |= mdp_ctl_flush_mask_lm(mixer->lm);
 
         return crtc_flush(crtc, flush_mask);
@@ -130,7 +125,9 @@ static u32 crtc_flush_all(struct drm_crtc *crtc)
 /* if file!=NULL, this is preclose potential cancel-flip path */
 static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 {
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_ctl *ctl = mdp5_cstate->ctl;
         struct drm_device *dev = crtc->dev;
         struct drm_pending_vblank_event *event;
         unsigned long flags;
@@ -144,10 +141,11 @@ static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
         }
         spin_unlock_irqrestore(&dev->event_lock, flags);
 
-        if (mdp5_crtc->ctl && !crtc->state->enable) {
+        if (ctl && !crtc->state->enable) {
                 /* set STAGE_UNUSED for all layers */
-                mdp5_ctl_blend(mdp5_crtc->ctl, NULL, 0, 0);
-                mdp5_crtc->ctl = NULL;
+                mdp5_ctl_blend(ctl, NULL, 0, 0);
+                /* XXX: What to do here? */
+                /* mdp5_crtc->ctl = NULL; */
         }
 }
 
@@ -196,13 +194,15 @@ static inline u32 mdp5_lm_use_fg_alpha_mask(enum mdp_mixer_stage_id stage)
 static void blend_setup(struct drm_crtc *crtc)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
         struct drm_plane *plane;
         const struct mdp5_cfg_hw *hw_cfg;
         struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL};
         const struct mdp_format *format;
-        struct mdp5_hw_mixer *mixer = mdp5_crtc->mixer;
+        struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer;
         uint32_t lm = mixer->lm;
+        struct mdp5_ctl *ctl = mdp5_cstate->ctl;
         uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0;
         unsigned long flags;
         enum mdp5_pipe stage[STAGE_MAX + 1] = { SSPP_NONE };
@@ -216,7 +216,8 @@ static void blend_setup(struct drm_crtc *crtc)
         spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
 
         /* ctl could be released already when we are shutting down: */
-        if (!mdp5_crtc->ctl)
+        /* XXX: Can this happen now? */
+        if (!ctl)
                 goto out;
 
         /* Collect all plane information */
@@ -293,7 +294,7 @@ static void blend_setup(struct drm_crtc *crtc)
 
         mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm), mixer_op_mode);
 
-        mdp5_ctl_blend(mdp5_crtc->ctl, stage, plane_cnt, ctl_blend_flags);
+        mdp5_ctl_blend(ctl, stage, plane_cnt, ctl_blend_flags);
 
 out:
         spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
@@ -302,8 +303,9 @@ out:
 static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
-        struct mdp5_hw_mixer *mixer = mdp5_crtc->mixer;
+        struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer;
         uint32_t lm = mixer->lm;
         unsigned long flags;
         struct drm_display_mode *mode;
@@ -332,6 +334,7 @@ static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc)
 static void mdp5_crtc_disable(struct drm_crtc *crtc)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 
         DBG("%s", crtc->name);
@@ -339,7 +342,7 @@ static void mdp5_crtc_disable(struct drm_crtc *crtc)
         if (WARN_ON(!mdp5_crtc->enabled))
                 return;
 
-        if (mdp5_crtc->cmd_mode)
+        if (mdp5_cstate->cmd_mode)
                 mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done);
 
         mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
@@ -351,6 +354,7 @@ static void mdp5_crtc_disable(struct drm_crtc *crtc)
 static void mdp5_crtc_enable(struct drm_crtc *crtc)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 
         DBG("%s", crtc->name);
@@ -361,7 +365,7 @@ static void mdp5_crtc_enable(struct drm_crtc *crtc)
         mdp5_enable(mdp5_kms);
         mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
 
-        if (mdp5_crtc->cmd_mode)
+        if (mdp5_cstate->cmd_mode)
                 mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->pp_done);
 
         mdp5_crtc->enabled = true;
@@ -508,6 +512,7 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
                                    struct drm_crtc_state *old_crtc_state)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct drm_device *dev = crtc->dev;
         unsigned long flags;
 
@@ -524,7 +529,8 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
          * it means we are trying to flush a CRTC whose state is disabled:
          * nothing else needs to be done.
          */
-        if (unlikely(!mdp5_crtc->ctl))
+        /* XXX: Can this happen now ? */
+        if (unlikely(!mdp5_cstate->ctl))
                 return;
 
         blend_setup(crtc);
@@ -535,11 +541,16 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
          * This is safe because no pp_done will happen before SW trigger
          * in command mode.
          */
-        if (mdp5_crtc->cmd_mode)
+        if (mdp5_cstate->cmd_mode)
                 request_pp_done_pending(crtc);
 
         mdp5_crtc->flushed_mask = crtc_flush_all(crtc);
 
+        /* XXX are we leaking out state here? */
+        mdp5_crtc->vblank.irqmask = mdp5_cstate->vblank_irqmask;
+        mdp5_crtc->err.irqmask = mdp5_cstate->err_irqmask;
+        mdp5_crtc->pp_done.irqmask = mdp5_cstate->pp_done_irqmask;
+
         request_pending(crtc, PENDING_FLIP);
 }
 
@@ -574,11 +585,13 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
                 uint32_t width, uint32_t height)
 {
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         struct drm_device *dev = crtc->dev;
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
         struct drm_gem_object *cursor_bo, *old_bo = NULL;
         uint32_t blendcfg, stride;
         uint64_t cursor_addr;
+        struct mdp5_ctl *ctl;
         int ret, lm;
         enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
         uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
@@ -591,7 +604,8 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
                 return -EINVAL;
         }
 
-        if (NULL == mdp5_crtc->ctl)
+        ctl = mdp5_cstate->ctl;
+        if (!ctl)
                 return -EINVAL;
 
         if (!handle) {
@@ -608,7 +622,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
         if (ret)
                 return -EINVAL;
 
-        lm = mdp5_crtc->mixer->lm;
+        lm = mdp5_cstate->pipeline.mixer->lm;
         stride = width * drm_format_plane_cpp(DRM_FORMAT_ARGB8888, 0);
 
         spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
@@ -638,7 +652,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
         spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 
 set_cursor:
-        ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, 0, cursor_enable);
+        ret = mdp5_ctl_set_cursor(ctl, 0, cursor_enable);
         if (ret) {
                 dev_err(dev->dev, "failed to %sable cursor: %d\n",
                                 cursor_enable ? "en" : "dis", ret);
@@ -660,7 +674,8 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 {
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
-        uint32_t lm = mdp5_crtc->mixer->lm;
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+        uint32_t lm = mdp5_cstate->pipeline.mixer->lm;
         uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
         uint32_t roi_w;
         uint32_t roi_h;
@@ -818,23 +833,26 @@ static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc)
 {
         struct drm_device *dev = crtc->dev;
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
         int ret;
 
         ret = wait_for_completion_timeout(&mdp5_crtc->pp_completion,
                                                 msecs_to_jiffies(50));
         if (ret == 0)
                 dev_warn(dev->dev, "pp done time out, lm=%d\n",
-                         mdp5_crtc->mixer->lm);
+                         mdp5_cstate->pipeline.mixer->lm);
 }
 
 static void mdp5_crtc_wait_for_flush_done(struct drm_crtc *crtc)
 {
         struct drm_device *dev = crtc->dev;
         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+        struct mdp5_ctl *ctl = mdp5_cstate->ctl;
         int ret;
 
         /* Should not call this function if crtc is disabled. */
-        if (!mdp5_crtc->ctl)
+        if (!ctl)
                 return;
 
         ret = drm_crtc_vblank_get(crtc);
@@ -842,7 +860,7 @@ static void mdp5_crtc_wait_for_flush_done(struct drm_crtc *crtc)
                 return;
 
         ret = wait_event_timeout(dev->vblank[drm_crtc_index(crtc)].queue,
-                ((mdp5_ctl_get_commit_status(mdp5_crtc->ctl) &
+                ((mdp5_ctl_get_commit_status(ctl) &
                 mdp5_crtc->flushed_mask) == 0),
                 msecs_to_jiffies(50));
         if (ret <= 0)
@@ -862,50 +880,41 @@ uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc)
 void mdp5_crtc_set_pipeline(struct drm_crtc *crtc,
                 struct mdp5_interface *intf, struct mdp5_ctl *ctl)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+        struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer;
         struct mdp5_kms *mdp5_kms = get_kms(crtc);
-        struct mdp5_hw_mixer *mixer = mdp5_crtc->mixer;
-
-        /* now that we know what irq's we want: */
-        mdp5_crtc->err.irqmask = intf2err(intf->num);
-        mdp5_crtc->vblank.irqmask = intf2vblank(mixer, intf);
-
-        if ((intf->type == INTF_DSI) &&
-                (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)) {
-                mdp5_crtc->pp_done.irqmask = lm2ppdone(mixer);
-                mdp5_crtc->pp_done.irq = mdp5_crtc_pp_done_irq;
-                mdp5_crtc->cmd_mode = true;
-        } else {
-                mdp5_crtc->pp_done.irqmask = 0;
-                mdp5_crtc->pp_done.irq = NULL;
-                mdp5_crtc->cmd_mode = false;
-        }
 
+        /* should this be done elsewhere ? */
         mdp_irq_update(&mdp5_kms->base);
 
-        mdp5_crtc->ctl = ctl;
         mdp5_ctl_set_pipeline(ctl, intf, mixer);
 }
 
 struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
 
-        return mdp5_crtc->ctl;
+        return mdp5_cstate->ctl;
 }
 
 struct mdp5_hw_mixer *mdp5_crtc_get_mixer(struct drm_crtc *crtc)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
-        return WARN_ON(!crtc) || WARN_ON(!mdp5_crtc->mixer) ?
-                ERR_PTR(-EINVAL) : mdp5_crtc->mixer;
+        struct mdp5_crtc_state *mdp5_cstate;
+
+        if (WARN_ON(!crtc))
+                return ERR_PTR(-EINVAL);
+
+        mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+
+        return WARN_ON(!mdp5_cstate->pipeline.mixer) ?
+                ERR_PTR(-EINVAL) : mdp5_cstate->pipeline.mixer;
 }
 
 void mdp5_crtc_wait_for_commit_done(struct drm_crtc *crtc)
 {
-        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+        struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
 
-        if (mdp5_crtc->cmd_mode)
+        if (mdp5_cstate->cmd_mode)
                 mdp5_crtc_wait_for_pp_done(crtc);
         else
                 mdp5_crtc_wait_for_flush_done(crtc);
@@ -918,7 +927,6 @@ struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
 {
         struct drm_crtc *crtc = NULL;
         struct mdp5_crtc *mdp5_crtc;
-        struct mdp5_kms *mdp5_kms;
 
         mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL);
         if (!mdp5_crtc)
@@ -934,6 +942,7 @@ struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
 
         mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq;
         mdp5_crtc->err.irq = mdp5_crtc_err_irq;
+        mdp5_crtc->pp_done.irq = mdp5_crtc_pp_done_irq;
 
         if (cursor_plane)
                 drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
@@ -948,8 +957,5 @@ struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
         drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs);
         plane->crtc = crtc;
 
-        mdp5_kms = get_kms(crtc);
-        mdp5_crtc->mixer = mdp5_kms->hwmixers[id];
-
         return crtc;
 }
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 880c7d4208ec..24f76f48d56c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -849,10 +849,6 @@ static int hwmixer_init(struct mdp5_kms *mdp5_kms)
                         return ret;
                 }
 
-                /* Don't create LMs connected to WB for now */
-                if (!mixer)
-                        continue;
-
                 mixer->idx = mdp5_kms->num_hwmixers;
                 mdp5_kms->hwmixers[mdp5_kms->num_hwmixers++] = mixer;
         }
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
index 6f353c4886e4..9bb1f824b2a9 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
@@ -84,10 +84,6 @@ struct mdp5_hw_mixer *mdp5_mixer_init(const struct mdp5_lm_instance *lm)
 {
         struct mdp5_hw_mixer *mixer;
 
-        /* ignore WB bound mixers for now */
-        if (lm->caps & MDP_LM_CAP_WB)
-                return NULL;
-
         mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
         if (!mixer)
                 return ERR_PTR(-ENOMEM);