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
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c
index 7a1ad3a..20e956e 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 @@
.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 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 76b9608..1027135 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 @@
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 @@
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 6d8e3a9..6e12e27 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 @@
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;
-
- state->state = new_state;
-
- return new_state;
+ return to_mdp5_global_state(priv_state);
}
-static void mdp5_swap_state(struct msm_kms *kms, struct drm_atomic_state *state)
+static struct drm_private_state *
+mdp5_global_duplicate_state(struct drm_private_obj *obj)
{
- 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 *state;
+
+ state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
+
+ return &state->base;
+}
+
+static void mdp5_global_destroy_state(struct drm_private_obj *obj,
+ struct drm_private_state *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 @@
.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 @@
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 @@
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 425a03d..854dfd3 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_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 @@
};
#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 8a00991..113e6b5 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 @@
{
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 @@
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 ff52c49..1ef26bc6 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 @@
{
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 @@
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 @@
{
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 a9f31da..e09bc53 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 @@
.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 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 ae4983d..96c2b82 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 @@
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 @@
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 @@
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 @@
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 8baba30..2f1a278 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1036,7 +1036,6 @@
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 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 bf5f8c3..f0635c3 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)
@@ -97,18 +36,33 @@
}
}
-/* 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 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;
+
+ if (!new_state->fb)
+ return 0;
+
+ 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_set_fence_for_plane(new_state, fence);
+
+ return msm_framebuffer_prepare(new_state->fb, kms->aspace);
+}
+
+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_kms *kms = priv->kms;
- drm_atomic_helper_wait_for_fences(dev, state, false);
-
kms->funcs->prepare_commit(kms, state);
drm_atomic_helper_commit_modeset_disables(dev, state);
@@ -117,175 +71,13 @@
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);
-
kms->funcs->complete_commit(kms, state);
- drm_atomic_state_put(state);
+ drm_atomic_helper_wait_for_vblanks(dev, state);
- commit_destroy(c);
-}
+ drm_atomic_helper_commit_hw_done(state);
-static void commit_worker(struct work_struct *work)
-{
- complete_commit(container_of(work, struct msm_commit, work), true);
-}
-
-/**
- * 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)
-{
- 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);
-
- drm_atomic_set_fence_for_plane(new_plane_state, fence);
- }
- }
-
- /*
- * 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;
-
- BUG_ON(drm_atomic_helper_swap_state(state, false) < 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);
-
- /*
- * 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.
- */
-
- drm_atomic_state_get(state);
- if (nonblock) {
- queue_work(priv->atomic_wq, &c->work);
- return 0;
- }
-
- complete_commit(c, false);
-
- return 0;
-
-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 30cd514..021a0b6 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -41,10 +41,11 @@
.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 @@
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 @@
}
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 48ed5b9..b2da1fb 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -117,10 +117,6 @@
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 @@
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 aaa329d..dfd9294 100644
--- a/drivers/gpu/drm/msm/msm_kms.h
+++ b/drivers/gpu/drm/msm/msm_kms.h
@@ -40,8 +40,6 @@
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_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)
{