diff options
author | Dave Airlie <airlied@redhat.com> | 2018-06-08 08:51:36 +0300 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2018-06-08 08:51:55 +0300 |
commit | 8c7eac58775e55be79201ed285a822b5d0132bef (patch) | |
tree | b71e3794b78ef533e65522a3e651282ca73ec80e /drivers/gpu/drm | |
parent | 568cf2e6aa0c762f14d2d0d481a006f93c63ab7a (diff) | |
parent | 74d3a3a70775de356b96b5461c3a204a51496fb3 (diff) | |
download | linux-8c7eac58775e55be79201ed285a822b5d0132bef.tar.xz |
Merge tag 'drm-msm-next-2018-06-04' of git://people.freedesktop.org/~robclark/linux into drm-next
A bunch of msm fixes and some atomic work.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvXe157nd70=GPjre=HjiAH91tGM50+XtM59b2MEChvXQ@mail.gmail.com
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c | 17 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 105 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h | 27 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c | 20 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 16 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 17 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 14 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_atomic.c | 258 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 11 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_kms.h | 14 |
13 files changed, 177 insertions, 352 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c index 7a1ad3af08e3..20e956e14c21 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c @@ -98,21 +98,6 @@ static const struct drm_plane_funcs mdp4_plane_funcs = { .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, }; -static int mdp4_plane_prepare_fb(struct drm_plane *plane, - struct drm_plane_state *new_state) -{ - struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); - struct mdp4_kms *mdp4_kms = get_kms(plane); - struct msm_kms *kms = &mdp4_kms->base.base; - struct drm_framebuffer *fb = new_state->fb; - - if (!fb) - return 0; - - DBG("%s: prepare: FB[%u]", mdp4_plane->name, fb->base.id); - return msm_framebuffer_prepare(fb, kms->aspace); -} - static void mdp4_plane_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state) { @@ -152,7 +137,7 @@ static void mdp4_plane_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs mdp4_plane_helper_funcs = { - .prepare_fb = mdp4_plane_prepare_fb, + .prepare_fb = msm_atomic_prepare_fb, .cleanup_fb = mdp4_plane_cleanup_fb, .atomic_check = mdp4_plane_atomic_check, .atomic_update = mdp4_plane_atomic_update, diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index 76b96081916f..10271359789e 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -430,6 +430,7 @@ static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc, struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); struct mdp5_kms *mdp5_kms = get_kms(crtc); struct device *dev = &mdp5_kms->pdev->dev; + unsigned long flags; DBG("%s", crtc->name); @@ -445,6 +446,14 @@ static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc, mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err); pm_runtime_put_sync(dev); + if (crtc->state->event && !crtc->state->active) { + WARN_ON(mdp5_crtc->event); + spin_lock_irqsave(&mdp5_kms->dev->event_lock, flags); + drm_crtc_send_vblank_event(crtc, crtc->state->event); + crtc->state->event = NULL; + spin_unlock_irqrestore(&mdp5_kms->dev->event_lock, flags); + } + mdp5_crtc->enabled = false; } diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index 6d8e3a9a6fc0..6e12e275deba 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -70,60 +70,110 @@ static int mdp5_hw_init(struct msm_kms *kms) return 0; } -struct mdp5_state *mdp5_get_state(struct drm_atomic_state *s) +/* Global/shared object state funcs */ + +/* + * This is a helper that returns the private state currently in operation. + * Note that this would return the "old_state" if called in the atomic check + * path, and the "new_state" after the atomic swap has been done. + */ +struct mdp5_global_state * +mdp5_get_existing_global_state(struct mdp5_kms *mdp5_kms) +{ + return to_mdp5_global_state(mdp5_kms->glob_state.state); +} + +/* + * This acquires the modeset lock set aside for global state, creates + * a new duplicated private object state. + */ +struct mdp5_global_state *mdp5_get_global_state(struct drm_atomic_state *s) { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct msm_kms_state *state = to_kms_state(s); - struct mdp5_state *new_state; + struct drm_private_state *priv_state; int ret; - if (state->state) - return state->state; - - ret = drm_modeset_lock(&mdp5_kms->state_lock, s->acquire_ctx); + ret = drm_modeset_lock(&mdp5_kms->glob_state_lock, s->acquire_ctx); if (ret) return ERR_PTR(ret); - new_state = kmalloc(sizeof(*mdp5_kms->state), GFP_KERNEL); - if (!new_state) - return ERR_PTR(-ENOMEM); + priv_state = drm_atomic_get_private_obj_state(s, &mdp5_kms->glob_state); + if (IS_ERR(priv_state)) + return ERR_CAST(priv_state); - /* Copy state: */ - new_state->hwpipe = mdp5_kms->state->hwpipe; - new_state->hwmixer = mdp5_kms->state->hwmixer; - if (mdp5_kms->smp) - new_state->smp = mdp5_kms->state->smp; + return to_mdp5_global_state(priv_state); +} + +static struct drm_private_state * +mdp5_global_duplicate_state(struct drm_private_obj *obj) +{ + struct mdp5_global_state *state; + + state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL); + if (!state) + return NULL; - state->state = new_state; + __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base); - return new_state; + return &state->base; } -static void mdp5_swap_state(struct msm_kms *kms, struct drm_atomic_state *state) +static void mdp5_global_destroy_state(struct drm_private_obj *obj, + struct drm_private_state *state) { - struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); - swap(to_kms_state(state)->state, mdp5_kms->state); + struct mdp5_global_state *mdp5_state = to_mdp5_global_state(state); + + kfree(mdp5_state); +} + +static const struct drm_private_state_funcs mdp5_global_state_funcs = { + .atomic_duplicate_state = mdp5_global_duplicate_state, + .atomic_destroy_state = mdp5_global_destroy_state, +}; + +static int mdp5_global_obj_init(struct mdp5_kms *mdp5_kms) +{ + struct mdp5_global_state *state; + + drm_modeset_lock_init(&mdp5_kms->glob_state_lock); + + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + state->mdp5_kms = mdp5_kms; + + drm_atomic_private_obj_init(&mdp5_kms->glob_state, + &state->base, + &mdp5_global_state_funcs); + return 0; } static void mdp5_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *state) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; + struct mdp5_global_state *global_state; + + global_state = mdp5_get_existing_global_state(mdp5_kms); pm_runtime_get_sync(dev); if (mdp5_kms->smp) - mdp5_smp_prepare_commit(mdp5_kms->smp, &mdp5_kms->state->smp); + mdp5_smp_prepare_commit(mdp5_kms->smp, &global_state->smp); } static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *state) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; + struct mdp5_global_state *global_state; + + global_state = mdp5_get_existing_global_state(mdp5_kms); if (mdp5_kms->smp) - mdp5_smp_complete_commit(mdp5_kms->smp, &mdp5_kms->state->smp); + mdp5_smp_complete_commit(mdp5_kms->smp, &global_state->smp); pm_runtime_put_sync(dev); } @@ -229,7 +279,6 @@ static const struct mdp_kms_funcs kms_funcs = { .irq = mdp5_irq, .enable_vblank = mdp5_enable_vblank, .disable_vblank = mdp5_disable_vblank, - .swap_state = mdp5_swap_state, .prepare_commit = mdp5_prepare_commit, .complete_commit = mdp5_complete_commit, .wait_for_crtc_commit_done = mdp5_wait_for_crtc_commit_done, @@ -727,7 +776,8 @@ static void mdp5_destroy(struct platform_device *pdev) if (mdp5_kms->rpm_enabled) pm_runtime_disable(&pdev->dev); - kfree(mdp5_kms->state); + drm_atomic_private_obj_fini(&mdp5_kms->glob_state); + drm_modeset_lock_fini(&mdp5_kms->glob_state_lock); } static int construct_pipes(struct mdp5_kms *mdp5_kms, int cnt, @@ -880,12 +930,9 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) mdp5_kms->dev = dev; mdp5_kms->pdev = pdev; - drm_modeset_lock_init(&mdp5_kms->state_lock); - mdp5_kms->state = kzalloc(sizeof(*mdp5_kms->state), GFP_KERNEL); - if (!mdp5_kms->state) { - ret = -ENOMEM; + ret = mdp5_global_obj_init(mdp5_kms); + if (ret) goto fail; - } mdp5_kms->mmio = msm_ioremap(pdev, "mdp_phys", "MDP5"); if (IS_ERR(mdp5_kms->mmio)) { diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h index 425a03d213e5..854dfd30e829 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h @@ -28,8 +28,6 @@ #include "mdp5_ctl.h" #include "mdp5_smp.h" -struct mdp5_state; - struct mdp5_kms { struct mdp_kms base; @@ -49,11 +47,12 @@ struct mdp5_kms { struct mdp5_cfg_handler *cfg; uint32_t caps; /* MDP capabilities (MDP_CAP_XXX bits) */ - /** - * Global atomic state. Do not access directly, use mdp5_get_state() + /* + * Global private object state, Do not access directly, use + * mdp5_global_get_state() */ - struct mdp5_state *state; - struct drm_modeset_lock state_lock; + struct drm_modeset_lock glob_state_lock; + struct drm_private_obj glob_state; struct mdp5_smp *smp; struct mdp5_ctl_manager *ctlm; @@ -81,19 +80,23 @@ struct mdp5_kms { }; #define to_mdp5_kms(x) container_of(x, struct mdp5_kms, base) -/* Global atomic state for tracking resources that are shared across +/* Global private object state for tracking resources that are shared across * multiple kms objects (planes/crtcs/etc). - * - * For atomic updates which require modifying global state, */ -struct mdp5_state { +#define to_mdp5_global_state(x) container_of(x, struct mdp5_global_state, base) +struct mdp5_global_state { + struct drm_private_state base; + + struct drm_atomic_state *state; + struct mdp5_kms *mdp5_kms; + struct mdp5_hw_pipe_state hwpipe; struct mdp5_hw_mixer_state hwmixer; struct mdp5_smp_state smp; }; -struct mdp5_state *__must_check -mdp5_get_state(struct drm_atomic_state *s); +struct mdp5_global_state * mdp5_get_existing_global_state(struct mdp5_kms *mdp5_kms); +struct mdp5_global_state *__must_check mdp5_get_global_state(struct drm_atomic_state *s); /* Atomic plane state. Subclasses the base drm_plane_state in order to * track assigned hwpipe and hw specific state. diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.c index 8a00991f03c7..113e6b569562 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.c @@ -52,14 +52,14 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc, { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state = mdp5_get_state(s); + struct mdp5_global_state *global_state = mdp5_get_global_state(s); struct mdp5_hw_mixer_state *new_state; int i; - if (IS_ERR(state)) - return PTR_ERR(state); + if (IS_ERR(global_state)) + return PTR_ERR(global_state); - new_state = &state->hwmixer; + new_state = &global_state->hwmixer; for (i = 0; i < mdp5_kms->num_hwmixers; i++) { struct mdp5_hw_mixer *cur = mdp5_kms->hwmixers[i]; @@ -129,8 +129,8 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc, void mdp5_mixer_release(struct drm_atomic_state *s, struct mdp5_hw_mixer *mixer) { - struct mdp5_state *state = mdp5_get_state(s); - struct mdp5_hw_mixer_state *new_state = &state->hwmixer; + struct mdp5_global_state *global_state = mdp5_get_global_state(s); + struct mdp5_hw_mixer_state *new_state = &global_state->hwmixer; if (!mixer) return; diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c index ff52c49095f9..1ef26bc63163 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c @@ -24,17 +24,19 @@ int mdp5_pipe_assign(struct drm_atomic_state *s, struct drm_plane *plane, { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state; + struct mdp5_global_state *new_global_state, *old_global_state; struct mdp5_hw_pipe_state *old_state, *new_state; int i, j; - state = mdp5_get_state(s); - if (IS_ERR(state)) - return PTR_ERR(state); + new_global_state = mdp5_get_global_state(s); + if (IS_ERR(new_global_state)) + return PTR_ERR(new_global_state); - /* grab old_state after mdp5_get_state(), since now we hold lock: */ - old_state = &mdp5_kms->state->hwpipe; - new_state = &state->hwpipe; + /* grab old_state after mdp5_get_global_state(), since now we hold lock: */ + old_global_state = mdp5_get_existing_global_state(mdp5_kms); + + old_state = &old_global_state->hwpipe; + new_state = &new_global_state->hwpipe; for (i = 0; i < mdp5_kms->num_hwpipes; i++) { struct mdp5_hw_pipe *cur = mdp5_kms->hwpipes[i]; @@ -107,7 +109,7 @@ int mdp5_pipe_assign(struct drm_atomic_state *s, struct drm_plane *plane, WARN_ON(r_hwpipe); DBG("%s: alloc SMP blocks", (*hwpipe)->name); - ret = mdp5_smp_assign(mdp5_kms->smp, &state->smp, + ret = mdp5_smp_assign(mdp5_kms->smp, &new_global_state->smp, (*hwpipe)->pipe, blkcfg); if (ret) return -ENOMEM; @@ -132,7 +134,7 @@ void mdp5_pipe_release(struct drm_atomic_state *s, struct mdp5_hw_pipe *hwpipe) { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state = mdp5_get_state(s); + struct mdp5_global_state *state = mdp5_get_global_state(s); struct mdp5_hw_pipe_state *new_state = &state->hwpipe; if (!hwpipe) diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c index a9f31da7d45a..e09bc53a0e65 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c @@ -245,20 +245,6 @@ static const struct drm_plane_funcs mdp5_plane_funcs = { .atomic_print_state = mdp5_plane_atomic_print_state, }; -static int mdp5_plane_prepare_fb(struct drm_plane *plane, - struct drm_plane_state *new_state) -{ - struct mdp5_kms *mdp5_kms = get_kms(plane); - struct msm_kms *kms = &mdp5_kms->base.base; - struct drm_framebuffer *fb = new_state->fb; - - if (!new_state->fb) - return 0; - - DBG("%s: prepare: FB[%u]", plane->name, fb->base.id); - return msm_framebuffer_prepare(fb, kms->aspace); -} - static void mdp5_plane_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state) { @@ -543,7 +529,7 @@ static void mdp5_plane_atomic_async_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs mdp5_plane_helper_funcs = { - .prepare_fb = mdp5_plane_prepare_fb, + .prepare_fb = msm_atomic_prepare_fb, .cleanup_fb = mdp5_plane_cleanup_fb, .atomic_check = mdp5_plane_atomic_check, .atomic_update = mdp5_plane_atomic_update, diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c index ae4983d9d0a5..96c2b828dba4 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c @@ -340,17 +340,20 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p) struct mdp5_kms *mdp5_kms = get_kms(smp); struct mdp5_hw_pipe_state *hwpstate; struct mdp5_smp_state *state; + struct mdp5_global_state *global_state; int total = 0, i, j; drm_printf(p, "name\tinuse\tplane\n"); drm_printf(p, "----\t-----\t-----\n"); if (drm_can_sleep()) - drm_modeset_lock(&mdp5_kms->state_lock, NULL); + drm_modeset_lock(&mdp5_kms->glob_state_lock, NULL); + + global_state = mdp5_get_existing_global_state(mdp5_kms); /* grab these *after* we hold the state_lock */ - hwpstate = &mdp5_kms->state->hwpipe; - state = &mdp5_kms->state->smp; + hwpstate = &global_state->hwpipe; + state = &global_state->smp; for (i = 0; i < mdp5_kms->num_hwpipes; i++) { struct mdp5_hw_pipe *hwpipe = mdp5_kms->hwpipes[i]; @@ -374,7 +377,7 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p) bitmap_weight(state->state, smp->blk_cnt)); if (drm_can_sleep()) - drm_modeset_unlock(&mdp5_kms->state_lock); + drm_modeset_unlock(&mdp5_kms->glob_state_lock); } void mdp5_smp_destroy(struct mdp5_smp *smp) @@ -384,7 +387,8 @@ void mdp5_smp_destroy(struct mdp5_smp *smp) struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms, const struct mdp5_smp_block *cfg) { - struct mdp5_smp_state *state = &mdp5_kms->state->smp; + struct mdp5_smp_state *state; + struct mdp5_global_state *global_state; struct mdp5_smp *smp = NULL; int ret; @@ -398,6 +402,9 @@ struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms, const struct mdp5_smp_ smp->blk_cnt = cfg->mmb_count; smp->blk_size = cfg->mmb_size; + global_state = mdp5_get_existing_global_state(mdp5_kms); + state = &global_state->smp; + /* statically tied MMBs cannot be re-allocated: */ bitmap_copy(state->state, cfg->reserved_state, smp->blk_cnt); memcpy(smp->reserved, cfg->reserved, sizeof(smp->reserved)); diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 8baba30d6c65..2f1a2780658a 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1036,7 +1036,6 @@ static int dsi_tx_buf_alloc(struct msm_dsi_host *msm_host, int size) ret = msm_gem_get_iova(msm_host->tx_gem_obj, priv->kms->aspace, &iova); - mutex_unlock(&dev->struct_mutex); if (ret) { pr_err("%s: failed to get iova, %d\n", __func__, ret); return ret; @@ -1067,9 +1066,20 @@ static int dsi_tx_buf_alloc(struct msm_dsi_host *msm_host, int size) static void dsi_tx_buf_free(struct msm_dsi_host *msm_host) { struct drm_device *dev = msm_host->dev; + struct msm_drm_private *priv; + /* + * This is possible if we're tearing down before we've had a chance to + * fully initialize. A very real possibility if our probe is deferred, + * in which case we'll hit msm_dsi_host_destroy() without having run + * through the dsi_tx_buf_alloc(). + */ + if (!dev) + return; + + priv = dev->dev_private; if (msm_host->tx_gem_obj) { - msm_gem_put_iova(msm_host->tx_gem_obj, 0); + msm_gem_put_iova(msm_host->tx_gem_obj, priv->kms->aspace); drm_gem_object_put_unlocked(msm_host->tx_gem_obj); msm_host->tx_gem_obj = NULL; } diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index bf5f8c39f34d..f0635c3da7f4 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -16,69 +16,8 @@ */ #include "msm_drv.h" -#include "msm_kms.h" #include "msm_gem.h" -#include "msm_fence.h" - -struct msm_commit { - struct drm_device *dev; - struct drm_atomic_state *state; - struct work_struct work; - uint32_t crtc_mask; -}; - -static void commit_worker(struct work_struct *work); - -/* block until specified crtcs are no longer pending update, and - * atomically mark them as pending update - */ -static int start_atomic(struct msm_drm_private *priv, uint32_t crtc_mask) -{ - int ret; - - spin_lock(&priv->pending_crtcs_event.lock); - ret = wait_event_interruptible_locked(priv->pending_crtcs_event, - !(priv->pending_crtcs & crtc_mask)); - if (ret == 0) { - DBG("start: %08x", crtc_mask); - priv->pending_crtcs |= crtc_mask; - } - spin_unlock(&priv->pending_crtcs_event.lock); - - return ret; -} - -/* clear specified crtcs (no longer pending update) - */ -static void end_atomic(struct msm_drm_private *priv, uint32_t crtc_mask) -{ - spin_lock(&priv->pending_crtcs_event.lock); - DBG("end: %08x", crtc_mask); - priv->pending_crtcs &= ~crtc_mask; - wake_up_all_locked(&priv->pending_crtcs_event); - spin_unlock(&priv->pending_crtcs_event.lock); -} - -static struct msm_commit *commit_init(struct drm_atomic_state *state) -{ - struct msm_commit *c = kzalloc(sizeof(*c), GFP_KERNEL); - - if (!c) - return NULL; - - c->dev = state->dev; - c->state = state; - - INIT_WORK(&c->work, commit_worker); - - return c; -} - -static void commit_destroy(struct msm_commit *c) -{ - end_atomic(c->dev->dev_private, c->crtc_mask); - kfree(c); -} +#include "msm_kms.h" static void msm_atomic_wait_for_commit_done(struct drm_device *dev, struct drm_atomic_state *old_state) @@ -97,195 +36,48 @@ static void msm_atomic_wait_for_commit_done(struct drm_device *dev, } } -/* The (potentially) asynchronous part of the commit. At this point - * nothing can fail short of armageddon. - */ -static void complete_commit(struct msm_commit *c, bool async) +int msm_atomic_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *new_state) { - struct drm_atomic_state *state = c->state; - struct drm_device *dev = state->dev; - struct msm_drm_private *priv = dev->dev_private; + struct msm_drm_private *priv = plane->dev->dev_private; struct msm_kms *kms = priv->kms; + struct drm_gem_object *obj; + struct msm_gem_object *msm_obj; + struct dma_fence *fence; - drm_atomic_helper_wait_for_fences(dev, state, false); - - kms->funcs->prepare_commit(kms, state); - - drm_atomic_helper_commit_modeset_disables(dev, state); - - drm_atomic_helper_commit_planes(dev, state, 0); - - drm_atomic_helper_commit_modeset_enables(dev, state); - - /* NOTE: _wait_for_vblanks() only waits for vblank on - * enabled CRTCs. So we end up faulting when disabling - * due to (potentially) unref'ing the outgoing fb's - * before the vblank when the disable has latched. - * - * But if it did wait on disabled (or newly disabled) - * CRTCs, that would be racy (ie. we could have missed - * the irq. We need some way to poll for pipe shut - * down. Or just live with occasionally hitting the - * timeout in the CRTC disable path (which really should - * not be critical path) - */ - - msm_atomic_wait_for_commit_done(dev, state); - - drm_atomic_helper_cleanup_planes(dev, state); + if (!new_state->fb) + return 0; - kms->funcs->complete_commit(kms, state); + obj = msm_framebuffer_bo(new_state->fb, 0); + msm_obj = to_msm_bo(obj); + fence = reservation_object_get_excl_rcu(msm_obj->resv); - drm_atomic_state_put(state); + drm_atomic_set_fence_for_plane(new_state, fence); - commit_destroy(c); -} - -static void commit_worker(struct work_struct *work) -{ - complete_commit(container_of(work, struct msm_commit, work), true); + return msm_framebuffer_prepare(new_state->fb, kms->aspace); } -/** - * drm_atomic_helper_commit - commit validated state object - * @dev: DRM device - * @state: the driver state object - * @nonblock: nonblocking commit - * - * This function commits a with drm_atomic_helper_check() pre-validated state - * object. This can still fail when e.g. the framebuffer reservation fails. - * - * RETURNS - * Zero for success or -errno. - */ -int msm_atomic_commit(struct drm_device *dev, - struct drm_atomic_state *state, bool nonblock) +void msm_atomic_commit_tail(struct drm_atomic_state *state) { + struct drm_device *dev = state->dev; struct msm_drm_private *priv = dev->dev_private; - struct msm_commit *c; - struct drm_crtc *crtc; - struct drm_crtc_state *crtc_state; - struct drm_plane *plane; - struct drm_plane_state *old_plane_state, *new_plane_state; - int i, ret; - - ret = drm_atomic_helper_prepare_planes(dev, state); - if (ret) - return ret; - - /* - * Note that plane->atomic_async_check() should fail if we need - * to re-assign hwpipe or anything that touches global atomic - * state, so we'll never go down the async update path in those - * cases. - */ - if (state->async_update) { - drm_atomic_helper_async_commit(dev, state); - drm_atomic_helper_cleanup_planes(dev, state); - return 0; - } - - c = commit_init(state); - if (!c) { - ret = -ENOMEM; - goto error; - } - - /* - * Figure out what crtcs we have: - */ - for_each_new_crtc_in_state(state, crtc, crtc_state, i) - c->crtc_mask |= drm_crtc_mask(crtc); - - /* - * Figure out what fence to wait for: - */ - for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { - if ((new_plane_state->fb != old_plane_state->fb) && new_plane_state->fb) { - struct drm_gem_object *obj = msm_framebuffer_bo(new_plane_state->fb, 0); - struct msm_gem_object *msm_obj = to_msm_bo(obj); - struct dma_fence *fence = reservation_object_get_excl_rcu(msm_obj->resv); + struct msm_kms *kms = priv->kms; - drm_atomic_set_fence_for_plane(new_plane_state, fence); - } - } + kms->funcs->prepare_commit(kms, state); - /* - * Wait for pending updates on any of the same crtc's and then - * mark our set of crtc's as busy: - */ - ret = start_atomic(dev->dev_private, c->crtc_mask); - if (ret) - goto err_free; + drm_atomic_helper_commit_modeset_disables(dev, state); - BUG_ON(drm_atomic_helper_swap_state(state, false) < 0); + drm_atomic_helper_commit_planes(dev, state, 0); - /* - * This is the point of no return - everything below never fails except - * when the hw goes bonghits. Which means we can commit the new state on - * the software side now. - * - * swap driver private state while still holding state_lock - */ - if (to_kms_state(state)->state) - priv->kms->funcs->swap_state(priv->kms, state); + drm_atomic_helper_commit_modeset_enables(dev, state); - /* - * Everything below can be run asynchronously without the need to grab - * any modeset locks at all under one conditions: It must be guaranteed - * that the asynchronous work has either been cancelled (if the driver - * supports it, which at least requires that the framebuffers get - * cleaned up with drm_atomic_helper_cleanup_planes()) or completed - * before the new state gets committed on the software side with - * drm_atomic_helper_swap_state(). - * - * This scheme allows new atomic state updates to be prepared and - * checked in parallel to the asynchronous completion of the previous - * update. Which is important since compositors need to figure out the - * composition of the next frame right after having submitted the - * current layout. - */ + msm_atomic_wait_for_commit_done(dev, state); - drm_atomic_state_get(state); - if (nonblock) { - queue_work(priv->atomic_wq, &c->work); - return 0; - } + kms->funcs->complete_commit(kms, state); - complete_commit(c, false); + drm_atomic_helper_wait_for_vblanks(dev, state); - return 0; + drm_atomic_helper_commit_hw_done(state); -err_free: - kfree(c); -error: drm_atomic_helper_cleanup_planes(dev, state); - return ret; -} - -struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev) -{ - struct msm_kms_state *state = kzalloc(sizeof(*state), GFP_KERNEL); - - if (!state || drm_atomic_state_init(dev, &state->base) < 0) { - kfree(state); - return NULL; - } - - return &state->base; -} - -void msm_atomic_state_clear(struct drm_atomic_state *s) -{ - struct msm_kms_state *state = to_kms_state(s); - drm_atomic_state_default_clear(&state->base); - kfree(state->state); - state->state = NULL; -} - -void msm_atomic_state_free(struct drm_atomic_state *state) -{ - kfree(to_kms_state(state)->state); - drm_atomic_state_default_release(state); - kfree(state); } diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 30cd514d8f7c..021a0b6f9a59 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -41,10 +41,11 @@ static const struct drm_mode_config_funcs mode_config_funcs = { .fb_create = msm_framebuffer_create, .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = drm_atomic_helper_check, - .atomic_commit = msm_atomic_commit, - .atomic_state_alloc = msm_atomic_state_alloc, - .atomic_state_clear = msm_atomic_state_clear, - .atomic_state_free = msm_atomic_state_free, + .atomic_commit = drm_atomic_helper_commit, +}; + +static const struct drm_mode_config_helper_funcs mode_config_helper_funcs = { + .atomic_commit_tail = msm_atomic_commit_tail, }; #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING @@ -384,7 +385,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv) priv->wq = alloc_ordered_workqueue("msm", 0); priv->atomic_wq = alloc_ordered_workqueue("msm:atomic", 0); - init_waitqueue_head(&priv->pending_crtcs_event); INIT_LIST_HEAD(&priv->inactive_list); INIT_LIST_HEAD(&priv->vblank_ctrl.event_list); @@ -442,6 +442,7 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv) } ddev->mode_config.funcs = &mode_config_funcs; + ddev->mode_config.helper_private = &mode_config_helper_funcs; ret = drm_vblank_init(ddev, priv->num_crtcs); if (ret < 0) { diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 48ed5b9a8580..b2da1fbf81e0 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -117,10 +117,6 @@ struct msm_drm_private { struct workqueue_struct *wq; struct workqueue_struct *atomic_wq; - /* crtcs pending async atomic updates: */ - uint32_t pending_crtcs; - wait_queue_head_t pending_crtcs_event; - unsigned int num_planes; struct drm_plane *planes[16]; @@ -160,8 +156,9 @@ struct msm_format { uint32_t pixel_format; }; -int msm_atomic_commit(struct drm_device *dev, - struct drm_atomic_state *state, bool nonblock); +int msm_atomic_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *new_state); +void msm_atomic_commit_tail(struct drm_atomic_state *state); struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev); void msm_atomic_state_clear(struct drm_atomic_state *state); void msm_atomic_state_free(struct drm_atomic_state *state); diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h index aaa329dc020e..dfd92947de2c 100644 --- a/drivers/gpu/drm/msm/msm_kms.h +++ b/drivers/gpu/drm/msm/msm_kms.h @@ -40,8 +40,6 @@ struct msm_kms_funcs { irqreturn_t (*irq)(struct msm_kms *kms); int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); - /* swap global atomic state: */ - void (*swap_state)(struct msm_kms *kms, struct drm_atomic_state *state); /* modeset, bracketing atomic_commit(): */ void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state); void (*complete_commit)(struct msm_kms *kms, struct drm_atomic_state *state); @@ -80,18 +78,6 @@ struct msm_kms { struct msm_gem_address_space *aspace; }; -/** - * Subclass of drm_atomic_state, to allow kms backend to have driver - * private global state. The kms backend can do whatever it wants - * with the ->state ptr. On ->atomic_state_clear() the ->state ptr - * is kfree'd and set back to NULL. - */ -struct msm_kms_state { - struct drm_atomic_state base; - void *state; -}; -#define to_kms_state(x) container_of(x, struct msm_kms_state, base) - static inline void msm_kms_init(struct msm_kms *kms, const struct msm_kms_funcs *funcs) { |