[RFCv3 11/14] drm: convert crtc to properties/state
Rob Clark
robdclark at gmail.com
Wed Nov 20 12:48:10 PST 2013
Break the mutable state of a crtc out into a separate structure
and use atomic properties mechanism to set crtc attributes. This
makes it easier to have some helpers for crtc->set_property()
and for checking for invalid params. The idea is that individual
drivers can wrap the state struct in their own struct which adds
driver specific parameters, for easy build-up of state across
multiple set_property() calls and for easy atomic commit or roll-
back.
This also re-works the locking a bit.. maybe some of these changes
should be rejuggled into different patch. But now atomic plane updates
grab current (and if necessary, incoming) crtc locks for their
synchronization.
---
drivers/gpu/drm/ast/ast_mode.c | 1 +
drivers/gpu/drm/cirrus/cirrus_mode.c | 1 +
drivers/gpu/drm/drm_atomic_helper.c | 347 ++++++++++++++++-
drivers/gpu/drm/drm_crtc.c | 580 +++++++++++++++++------------
drivers/gpu/drm/drm_fb_cma_helper.c | 9 +-
drivers/gpu/drm/drm_fb_helper.c | 12 +-
drivers/gpu/drm/exynos/exynos_drm_crtc.c | 5 +-
drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 4 +-
drivers/gpu/drm/gma500/cdv_intel_display.c | 1 +
drivers/gpu/drm/gma500/psb_drv.c | 4 +-
drivers/gpu/drm/gma500/psb_intel_display.c | 1 +
drivers/gpu/drm/i915/intel_display.c | 17 +-
drivers/gpu/drm/i915/intel_fbdev.c | 6 +-
drivers/gpu/drm/mgag200/mgag200_mode.c | 1 +
drivers/gpu/drm/msm/mdp4/mdp4_crtc.c | 5 +-
drivers/gpu/drm/msm/msm_drv.c | 7 +-
drivers/gpu/drm/nouveau/dispnv04/crtc.c | 1 +
drivers/gpu/drm/nouveau/nv50_display.c | 1 +
drivers/gpu/drm/omapdrm/omap_crtc.c | 17 +-
drivers/gpu/drm/omapdrm/omap_drv.c | 6 +-
drivers/gpu/drm/qxl/qxl_display.c | 2 +
drivers/gpu/drm/radeon/radeon_display.c | 2 +
drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +
drivers/gpu/drm/shmobile/shmob_drm_crtc.c | 2 +
drivers/gpu/drm/tegra/fb.c | 7 +-
drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 1 +
drivers/gpu/drm/udl/udl_modeset.c | 2 +
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 12 +-
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 1 +
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 1 +
include/drm/drm_atomic_helper.h | 41 ++
include/drm/drm_crtc.h | 87 ++++-
include/drm/drm_fb_helper.h | 3 +-
include/uapi/drm/drm_mode.h | 2 +
34 files changed, 864 insertions(+), 327 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 7fc9f72..13f6943 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -619,6 +619,7 @@ static const struct drm_crtc_funcs ast_crtc_funcs = {
.cursor_move = ast_cursor_move,
.reset = ast_crtc_reset,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.gamma_set = ast_crtc_gamma_set,
.destroy = ast_crtc_destroy,
};
diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
index adabc3d..9e0b713 100644
--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -363,6 +363,7 @@ static void cirrus_crtc_destroy(struct drm_crtc *crtc)
static const struct drm_crtc_funcs cirrus_crtc_funcs = {
.gamma_set = cirrus_crtc_gamma_set,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = cirrus_crtc_destroy,
};
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 0618113..aaab456 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -40,17 +40,22 @@ void *drm_atomic_helper_begin(struct drm_device *dev, uint32_t flags)
{
struct drm_atomic_helper_state *state;
int nplanes = dev->mode_config.num_plane;
+ int ncrtcs = dev->mode_config.num_crtc;
int sz;
void *ptr;
sz = sizeof(*state);
sz += (sizeof(state->planes) + sizeof(state->pstates)) * nplanes;
+ sz += (sizeof(state->crtcs) + sizeof(state->cstates)) * ncrtcs;
ptr = kzalloc(sz, GFP_KERNEL);
state = ptr;
ptr = &state[1];
+ ww_acquire_init(&state->ww_ctx, &crtc_ww_class);
+ INIT_LIST_HEAD(&state->locked_crtcs);
+
kref_init(&state->refcount);
state->dev = dev;
state->flags = flags;
@@ -61,6 +66,12 @@ void *drm_atomic_helper_begin(struct drm_device *dev, uint32_t flags)
state->pstates = ptr;
ptr = &state->pstates[nplanes];
+ state->crtcs = ptr;
+ ptr = &state->crtcs[ncrtcs];
+
+ state->cstates = ptr;
+ ptr = &state->cstates[ncrtcs];
+
return state;
}
EXPORT_SYMBOL(drm_atomic_helper_begin);
@@ -79,7 +90,16 @@ int drm_atomic_helper_set_event(struct drm_device *dev,
void *state, struct drm_mode_object *obj,
struct drm_pending_vblank_event *event)
{
- return -EINVAL; /* for now */
+ switch (obj->type) {
+ case DRM_MODE_OBJECT_CRTC: {
+ struct drm_crtc_state *cstate =
+ drm_atomic_get_crtc_state(obj_to_crtc(obj), state);
+ cstate->event = event;
+ return 0;
+ }
+ default:
+ return -EINVAL;
+ }
}
EXPORT_SYMBOL(drm_atomic_helper_set_event);
@@ -98,6 +118,7 @@ int drm_atomic_helper_check(struct drm_device *dev, void *state)
{
struct drm_atomic_helper_state *a = state;
int nplanes = dev->mode_config.num_plane;
+ int ncrtcs = dev->mode_config.num_crtc;
int i, ret = 0;
for (i = 0; i < nplanes; i++) {
@@ -108,10 +129,55 @@ int drm_atomic_helper_check(struct drm_device *dev, void *state)
}
}
+ for (i = 0; i < ncrtcs; i++) {
+ if (a->crtcs[i]) {
+ ret = drm_atomic_check_crtc_state(a->crtcs[i], a->cstates[i]);
+ if (ret)
+ break;
+ }
+ }
+
return ret;
}
EXPORT_SYMBOL(drm_atomic_helper_check);
+static void drop_locks(struct drm_atomic_helper_state *a)
+{
+ ww_acquire_done(&a->ww_ctx);
+ while (!list_empty(&a->locked_crtcs)) {
+ struct drm_crtc *crtc;
+
+ crtc = list_first_entry(&a->locked_crtcs,
+ struct drm_crtc, lock_head);
+
+ drm_modeset_unlock_crtc(crtc);
+ }
+ ww_acquire_fini(&a->ww_ctx);
+}
+
+static int grab_locks(struct drm_atomic_helper_state *a)
+{
+ int nplanes = a->dev->mode_config.num_plane;
+ int ncrtcs = a->dev->mode_config.num_crtc;
+ int i;
+
+ for (i = 0; i < nplanes; i++) {
+ if (a->planes[i]) {
+ /* both incoming and outgoing crtc: */
+ if (a->planes[i]->state->crtc)
+ drm_modeset_lock_crtc(a->planes[i]->state->crtc, a);
+ if (a->pstates[i]->crtc)
+ drm_modeset_lock_crtc(a->pstates[i]->crtc, a);
+ }
+ }
+
+ for (i = 0; i < ncrtcs; i++)
+ if (a->crtcs[i])
+ drm_modeset_lock_crtc(a->crtcs[i], a);
+
+ return 0;
+}
+
/**
* drm_atomic_helper_commit - commit state
* @dev: DRM device
@@ -127,8 +193,18 @@ int drm_atomic_helper_commit(struct drm_device *dev, void *state)
{
struct drm_atomic_helper_state *a = state;
int nplanes = dev->mode_config.num_plane;
+ int ncrtcs = dev->mode_config.num_crtc;
int i, ret = 0;
+ /* re-acquire dropped locks, in case of NONBLOCK */
+ mutex_lock(&a->dev->struct_mutex);
+ if (a->locks_dropped) {
+ ww_acquire_init(&a->ww_ctx, &crtc_ww_class);
+ grab_locks(a);
+ a->locks_dropped = false;
+ }
+ mutex_unlock(&a->dev->struct_mutex);
+
for (i = 0; i < nplanes; i++) {
if (a->planes[i]) {
ret = drm_atomic_commit_plane_state(a->planes[i], a->pstates[i]);
@@ -137,6 +213,14 @@ int drm_atomic_helper_commit(struct drm_device *dev, void *state)
}
}
+ for (i = 0; i < ncrtcs; i++) {
+ if (a->crtcs[i]) {
+ ret = drm_atomic_commit_crtc_state(a->crtcs[i], a->cstates[i]);
+ if (ret)
+ break;
+ }
+ }
+
return ret;
}
EXPORT_SYMBOL(drm_atomic_helper_commit);
@@ -150,26 +234,51 @@ EXPORT_SYMBOL(drm_atomic_helper_commit);
*/
void drm_atomic_helper_end(struct drm_device *dev, void *state)
{
+ struct drm_atomic_helper_state *a = state;
+
+ /* yes, we need to synchronize our locks! So we don't race with
+ * driver calling back drm_atomic_helper_commit() asynchronously
+ * in NONBLOCK case
+ */
+ mutex_lock(&a->dev->struct_mutex);
+ drop_locks(a);
+ a->locks_dropped = true;
+ mutex_unlock(&a->dev->struct_mutex);
+
drm_atomic_helper_state_unreference(state);
}
EXPORT_SYMBOL(drm_atomic_helper_end);
void _drm_atomic_helper_state_free(struct kref *kref)
{
- struct drm_atomic_helper_state *state =
+ struct drm_atomic_helper_state *a =
container_of(kref, struct drm_atomic_helper_state, refcount);
- struct drm_device *dev = state->dev;
+ struct drm_device *dev = a->dev;
int nplanes = dev->mode_config.num_plane;
+ int ncrtcs = dev->mode_config.num_crtc;
int i;
for (i = 0; i < nplanes; i++) {
- if (state->pstates[i]) {
- state->planes[i]->state->state = NULL;
- kfree(state->pstates[i]);
+ if (a->pstates[i]) {
+ a->planes[i]->state->state = NULL;
+ kfree(a->pstates[i]);
}
}
- kfree(state);
+ for (i = 0; i < ncrtcs; i++) {
+ if (a->cstates[i]) {
+ a->crtcs[i]->state->state = NULL;
+ kfree(a->cstates[i]);
+ }
+ }
+
+ /* drop any locks we may have re-acquired (ie. NONBLOCK case,
+ * if the driver defers commit to a worker)
+ */
+ if (!a->locks_dropped)
+ drop_locks(a);
+
+ kfree(a);
}
EXPORT_SYMBOL(_drm_atomic_helper_state_free);
@@ -195,13 +304,21 @@ static struct drm_plane_state *
drm_atomic_helper_get_plane_state(struct drm_plane *plane, void *state)
{
struct drm_atomic_helper_state *a = state;
- struct drm_plane_state *pstate = a->pstates[plane->id];
+ struct drm_plane_state *pstate;
+
+ /* grab lock of current crtc: */
+ if (plane->state->crtc)
+ drm_modeset_lock_crtc(plane->state->crtc, state);
+
+ pstate = a->pstates[plane->id];
+
if (!pstate) {
pstate = kzalloc(sizeof(*pstate), GFP_KERNEL);
drm_atomic_helper_init_plane_state(plane, pstate, state);
a->planes[plane->id] = plane;
a->pstates[plane->id] = pstate;
}
+
return pstate;
}
@@ -216,15 +333,9 @@ static int
drm_atomic_helper_commit_plane_state(struct drm_plane *plane,
struct drm_plane_state *pstate)
{
- struct drm_device *dev = plane->dev;
struct drm_framebuffer *old_fb = NULL, *fb = NULL;
int ret = 0;
- /* probably more fine grain locking would be ok of old crtc
- * and new crtc were same..
- */
- drm_modeset_lock_all(dev);
-
fb = pstate->fb;
if (pstate->crtc && fb) {
@@ -250,8 +361,210 @@ drm_atomic_helper_commit_plane_state(struct drm_plane *plane,
swap_plane_state(plane, pstate->state);
}
- drm_modeset_unlock_all(dev);
+ if (fb)
+ drm_framebuffer_unreference(fb);
+ if (old_fb)
+ drm_framebuffer_unreference(old_fb);
+
+ return ret;
+}
+
+int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc, void *state,
+ struct drm_property *property, uint64_t val, void *blob_data)
+{
+ return drm_crtc_set_property(crtc,
+ drm_atomic_get_crtc_state(crtc, state),
+ property, val, blob_data);
+}
+EXPORT_SYMBOL(drm_atomic_helper_crtc_set_property);
+
+void drm_atomic_helper_init_crtc_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate, void *state)
+{
+ /* snapshot current state: */
+ *cstate = *crtc->state;
+ cstate->state = state;
+
+ /* this should never happen.. but make sure! */
+ WARN_ON(cstate->event);
+ cstate->event = NULL;
+}
+EXPORT_SYMBOL(drm_atomic_helper_init_crtc_state);
+
+static struct drm_crtc_state *
+drm_atomic_helper_get_crtc_state(struct drm_crtc *crtc, void *state)
+{
+ struct drm_atomic_helper_state *a = state;
+ struct drm_crtc_state *cstate;
+
+ drm_modeset_lock_crtc(crtc, state);
+
+ cstate = a->cstates[crtc->id];
+
+ if (!cstate) {
+ cstate = kmalloc(sizeof(*cstate), GFP_KERNEL);
+ if (!cstate)
+ return NULL;
+ drm_atomic_helper_init_crtc_state(crtc, cstate, state);
+ a->crtcs[crtc->id] = crtc;
+ a->cstates[crtc->id] = cstate;
+ }
+ return cstate;
+}
+
+static void
+swap_crtc_state(struct drm_crtc *crtc, struct drm_atomic_helper_state *a)
+{
+ struct drm_crtc_state *cstate = a->cstates[crtc->id];
+ struct drm_device *dev = crtc->dev;
+ struct drm_pending_vblank_event *event = cstate->event;
+ if (event) {
+ /* hrm, need to sort out a better way to send events for
+ * other-than-pageflip.. but modeset is not async, so:
+ */
+ unsigned long flags;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ drm_send_vblank_event(dev, crtc->id, event);
+ cstate->event = NULL;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ }
+ swap(crtc->state, a->cstates[crtc->id]);
+ crtc->base.propvals = &crtc->state->propvals;
+}
+
+static struct drm_connector **get_connector_set(struct drm_device *dev,
+ uint32_t *connector_ids, uint32_t num_connector_ids)
+{
+ struct drm_connector **connector_set = NULL;
+ int i;
+
+ connector_set = kmalloc(num_connector_ids *
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set)
+ return NULL;
+
+ for (i = 0; i < num_connector_ids; i++)
+ connector_set[i] = drm_connector_find(dev, connector_ids[i]);
+
+ return connector_set;
+}
+
+static struct drm_display_mode *get_mode(struct drm_crtc *crtc, struct drm_crtc_state *cstate)
+{
+ struct drm_display_mode *mode = NULL;
+ if (cstate->mode_valid) {
+ struct drm_device *dev = crtc->dev;
+ int ret;
+
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return ERR_PTR(-ENOMEM);
+
+ ret = drm_crtc_convert_umode(mode, &cstate->mode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ drm_mode_destroy(dev, mode);
+ return ERR_PTR(ret);
+ }
+
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ }
+ return mode;
+}
+static int set_config(struct drm_crtc *crtc, struct drm_crtc_state *cstate)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_framebuffer *fb = cstate->fb;
+ struct drm_connector **connector_set = get_connector_set(crtc->dev,
+ cstate->connector_ids, cstate->num_connector_ids);
+ struct drm_display_mode *mode = get_mode(crtc, cstate);
+ struct drm_mode_set set = {
+ .crtc = crtc,
+ .x = cstate->x,
+ .y = cstate->y,
+ .mode = mode,
+ .num_connectors = cstate->num_connector_ids,
+ .connectors = connector_set,
+ .fb = fb,
+ };
+ int ret;
+
+ if (IS_ERR(mode)) {
+ ret = PTR_ERR(mode);
+ return ret;
+ }
+
+ ret = drm_mode_set_config_internal(&set);
+ if (!ret)
+ swap_crtc_state(crtc, cstate->state);
+
+ if (fb)
+ drm_framebuffer_unreference(fb);
+
+ kfree(connector_set);
+ if (mode)
+ drm_mode_destroy(dev, mode);
+ return ret;
+}
+
+static int
+drm_atomic_helper_commit_crtc_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate)
+{
+ struct drm_framebuffer *old_fb = NULL, *fb = NULL;
+ struct drm_atomic_helper_state *a = cstate->state;
+ int ret = -EINVAL;
+
+ if (cstate->set_config) {
+ cstate->set_config = false;
+ return set_config(crtc, cstate);
+ }
+
+ if (cstate->fb) {
+ /* pageflip */
+
+ if (crtc->fb == NULL) {
+ /* The framebuffer is currently unbound, presumably
+ * due to a hotplug event, that userspace has not
+ * yet discovered.
+ */
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (crtc->funcs->page_flip == NULL)
+ goto out;
+
+ old_fb = crtc->fb;
+ fb = cstate->fb;
+
+ ret = crtc->funcs->page_flip(crtc, fb, cstate->event, a->flags);
+ if (ret) {
+ /* Keep the old fb, don't unref it. */
+ old_fb = NULL;
+ } else {
+ cstate->event = NULL;
+ swap_crtc_state(crtc, cstate->state);
+ /* Unref only the old framebuffer. */
+ fb = NULL;
+ }
+ } else {
+ /* disable */
+ struct drm_mode_set set = {
+ .crtc = crtc,
+ .fb = NULL,
+ };
+
+ old_fb = crtc->state->fb;
+ ret = drm_mode_set_config_internal(&set);
+ if (!ret) {
+ swap_crtc_state(crtc, cstate->state);
+ }
+ }
+
+out:
if (fb)
drm_framebuffer_unreference(fb);
if (old_fb)
@@ -264,5 +577,9 @@ const struct drm_atomic_helper_funcs drm_atomic_helper_funcs = {
.get_plane_state = drm_atomic_helper_get_plane_state,
.check_plane_state = drm_plane_check_state,
.commit_plane_state = drm_atomic_helper_commit_plane_state,
+
+ .get_crtc_state = drm_atomic_helper_get_crtc_state,
+ .check_crtc_state = drm_crtc_check_state,
+ .commit_crtc_state = drm_atomic_helper_commit_crtc_state,
};
EXPORT_SYMBOL(drm_atomic_helper_funcs);
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b68984b..4b40a39 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -37,6 +37,53 @@
#include <drm/drm_crtc.h>
#include <drm/drm_edid.h>
#include <drm/drm_fourcc.h>
+#include <drm/drm_atomic_helper.h>
+
+/**
+ * drm_modeset_lock_crtc - take crtc modeset lock
+ * @crtc: crtc to lock
+ * @state: atomic state
+ *
+ * If state is not NULL, then then it's aquire context is used
+ * and the crtc does not need to be explicitly unlocked, it
+ * will be automatically unlocked when the atomic update is
+ * complete (ioctl returns)
+ */
+int drm_modeset_lock_crtc(struct drm_crtc *crtc, void *state)
+{
+ // ugg, this makes atomic_helper mandatory.. not really
+ // sure yet whether I should care, or just simplify things
+ // and require that drivers use or extend atomic_helper:
+ struct drm_atomic_helper_state *a = state;
+ struct ww_acquire_ctx *ww_ctx = NULL;
+ int ret;
+
+ if (a) {
+ if (a->flags & DRM_MODE_ATOMIC_NOLOCK)
+ return 0;
+ ww_ctx = &a->ww_ctx;
+ }
+
+ ret = ww_mutex_lock(&crtc->mutex, ww_ctx);
+ if (a && !ret) {
+ WARN_ON(!list_empty(&crtc->lock_head));
+ list_add(&crtc->lock_head, &a->locked_crtcs);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_modeset_lock_crtc);
+
+/**
+ * drm_modeset_unlock_crtc - drop crtc modeset lock
+ * @crtc: crtc to unlock
+ */
+void drm_modeset_unlock_crtc(struct drm_crtc *crtc)
+{
+ list_del_init(&crtc->lock_head);
+ ww_mutex_unlock(&crtc->mutex);
+}
+EXPORT_SYMBOL(drm_modeset_unlock_crtc);
/**
* drm_modeset_lock_all - take all modeset locks
@@ -576,8 +623,6 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
struct drm_device *dev = fb->dev;
struct drm_crtc *crtc;
struct drm_plane *plane;
- struct drm_mode_set set;
- int ret;
WARN_ON(!list_empty(&fb->filp_head));
@@ -597,6 +642,7 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
* in this manner.
*/
if (atomic_read(&fb->refcount.refcount) > 1) {
+ struct drm_mode_config *config = &fb->dev->mode_config;
void *state;
state = dev->driver->atomic_begin(dev, 0);
@@ -605,22 +651,12 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
return;
}
- /* TODO once CRTC is converted to state/properties, we can push the
- * locking down into drm_atomic_helper_commit(), since that is where
- * the actual changes take place..
- */
- drm_modeset_lock_all(dev);
-
/* remove from any CRTC */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (crtc->fb == fb) {
/* should turn off the crtc */
- memset(&set, 0, sizeof(struct drm_mode_set));
- set.crtc = crtc;
- set.fb = NULL;
- ret = drm_mode_set_config_internal(&set);
- if (ret)
- DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ drm_mode_crtc_set_obj_prop(crtc, state,
+ config->prop_fb_id, 0, NULL);
}
}
@@ -636,15 +672,13 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
dev->driver->atomic_commit(dev, state);
dev->driver->atomic_end(dev, state);
-
- drm_modeset_unlock_all(dev);
}
drm_framebuffer_unreference(fb);
}
EXPORT_SYMBOL(drm_framebuffer_remove);
-static DEFINE_WW_CLASS(crtc_ww_class);
+DEFINE_WW_CLASS(crtc_ww_class);
/**
* drm_crtc_init - Initialise a new CRTC object
@@ -660,26 +694,38 @@ static DEFINE_WW_CLASS(crtc_ww_class);
int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs)
{
+ struct drm_mode_config *config = &dev->mode_config;
int ret;
+ if (!crtc->state)
+ crtc->state = kzalloc(sizeof(*crtc->state), GFP_KERNEL);
+
crtc->dev = dev;
crtc->funcs = funcs;
- crtc->invert_dimensions = false;
+ crtc->state->invert_dimensions = false;
drm_modeset_lock_all(dev);
ww_mutex_init(&crtc->mutex, &crtc_ww_class);
mutex_lock_nest_lock(&crtc->mutex.base, &dev->mode_config.mutex);
+ INIT_LIST_HEAD(&crtc->lock_head);
+
ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
if (ret)
goto out;
crtc->base.properties = &crtc->properties;
- crtc->base.propvals = &crtc->propvals;
+ crtc->base.propvals = &crtc->state->propvals;
list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
dev->mode_config.num_crtc++;
+ drm_object_attach_property(&crtc->base, config->prop_mode, 0);
+ drm_object_attach_property(&crtc->base, config->prop_connector_ids, 0);
+ drm_object_attach_property(&crtc->base, config->prop_fb_id, 0);
+ drm_object_attach_property(&crtc->base, config->prop_src_x, 0);
+ drm_object_attach_property(&crtc->base, config->prop_src_y, 0);
+
out:
drm_modeset_unlock_all(dev);
@@ -702,12 +748,162 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)
kfree(crtc->gamma_store);
crtc->gamma_store = NULL;
+ WARN_ON(!list_empty(&crtc->lock_head));
+
drm_mode_object_put(dev, &crtc->base);
list_del(&crtc->head);
dev->mode_config.num_crtc--;
}
EXPORT_SYMBOL(drm_crtc_cleanup);
+// XXX de-duplicate from drm_atomic_helper.c:
+// probably we want to stash the drm_display_mode as a ptr (transient data) on the state
+// so we only convert it once.. maybe in set_property()?
+static struct drm_display_mode *get_mode(struct drm_crtc *crtc, struct drm_crtc_state *cstate)
+{
+ struct drm_display_mode *mode = NULL;
+ if (cstate->mode_valid) {
+ struct drm_device *dev = crtc->dev;
+ int ret;
+
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return ERR_PTR(-ENOMEM);
+
+ ret = drm_crtc_convert_umode(mode, &cstate->mode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ drm_mode_destroy(dev, mode);
+ return ERR_PTR(ret);
+ }
+
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ }
+ return mode;
+}
+
+
+int drm_crtc_check_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ struct drm_framebuffer *fb = state->fb;
+ int hdisplay, vdisplay;
+ struct drm_display_mode *mode = get_mode(crtc, state);
+
+ if (IS_ERR(mode))
+ return PTR_ERR(mode);
+
+ /* disabling the crtc is allowed: */
+ if (!(fb && state->mode_valid))
+ return 0;
+
+ hdisplay = state->mode.hdisplay;
+ vdisplay = state->mode.vdisplay;
+
+ if (mode && drm_mode_is_stereo(mode)) {
+ struct drm_display_mode adjusted = *mode;
+
+ drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
+ hdisplay = adjusted.crtc_hdisplay;
+ vdisplay = adjusted.crtc_vdisplay;
+ }
+
+ if (state->invert_dimensions)
+ swap(hdisplay, vdisplay);
+
+ /* For some reason crtc x/y offsets are signed internally. */
+ if (state->x > INT_MAX || state->y > INT_MAX)
+ return -ERANGE;
+
+ if (hdisplay > fb->width ||
+ vdisplay > fb->height ||
+ state->x > fb->width - hdisplay ||
+ state->y > fb->height - vdisplay) {
+ DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
+ fb->width, fb->height, hdisplay, vdisplay,
+ state->x, state->y,
+ state->invert_dimensions ? " (inverted)" : "");
+ return -ENOSPC;
+ }
+
+ if (crtc->enabled && !state->set_config) {
+ if (crtc->state->fb->pixel_format != fb->pixel_format) {
+ DRM_DEBUG_KMS("Page flip is not allowed to "
+ "change frame buffer format.\n");
+ return -EINVAL;
+ }
+ }
+
+ if (state->num_connector_ids == 0) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ return -EINVAL;
+ }
+
+ if (mode)
+ drm_mode_destroy(crtc->dev, mode);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_crtc_check_state);
+
+void drm_crtc_commit_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ crtc->state = state;
+ crtc->base.propvals = &state->propvals;
+}
+EXPORT_SYMBOL(drm_crtc_commit_state);
+
+int drm_crtc_set_property(struct drm_crtc *crtc,
+ struct drm_crtc_state *state,
+ struct drm_property *property,
+ uint64_t value, void *blob_data)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_mode_config *config = &dev->mode_config;
+
+ drm_object_property_set_value(&crtc->base,
+ &state->propvals, property, value, blob_data);
+
+ if (property == config->prop_mode) {
+ if (!blob_data) {
+ memset(&state->mode, 0, sizeof(state->mode));
+ state->mode_valid = false;
+ } else {
+ /* check size: */
+ if (value < sizeof(struct drm_mode_modeinfo))
+ return -EINVAL;
+ state->mode = *(struct drm_mode_modeinfo *)blob_data;
+ state->mode_valid = true;
+ }
+ state->set_config = true;
+ } else if (property == config->prop_connector_ids) {
+ state->num_connector_ids = value / sizeof(state->connector_ids[0]);
+ state->connector_ids = blob_data;
+ state->set_config = true;
+ } else if (property == config->prop_fb_id) {
+ state->new_fb = true;
+ state->fb = drm_framebuffer_lookup(dev, value);
+ } else if (property == config->prop_src_x) {
+ int x = *(int *)&value;
+ if (state->x != x) {
+ state->x = x;
+ state->set_config = true;
+ }
+ } else if (property == config->prop_src_y) {
+ int y = *(int *)&value;
+ if (state->y != y) {
+ state->y = y;
+ state->set_config = true;
+ }
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_crtc_set_property);
+
/**
* drm_mode_probed_add - add a mode to a connector's probed mode list
* @connector: connector the new mode
@@ -1093,7 +1289,14 @@ int drm_plane_set_property(struct drm_plane *plane,
state->fb = drm_framebuffer_lookup(dev, value);
} else if (property == config->prop_crtc_id) {
struct drm_mode_object *obj = drm_property_get_obj(property, value);
- state->crtc = obj ? obj_to_crtc(obj) : NULL;
+ struct drm_crtc *crtc = obj ? obj_to_crtc(obj) : NULL;
+ /* take the lock of the incoming crtc as well, moving
+ * plane between crtcs is synchronized on both incoming
+ * and outgoing crtc.
+ */
+ if (crtc)
+ drm_modeset_lock_crtc(crtc, state->state);
+ state->crtc = crtc;
} else if (property == config->prop_crtc_x) {
state->crtc_x = U642I64(value);
} else if (property == config->prop_crtc_y) {
@@ -1269,6 +1472,16 @@ static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
return -ENOMEM;
dev->mode_config.prop_crtc_id = prop;
+ prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, "CONNECTOR_IDS", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_connector_ids = prop;
+
+ prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, "MODE", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_mode = prop;
+
return 0;
}
@@ -1533,7 +1746,7 @@ static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
* RETURNS:
* Zero on success, errno on failure.
*/
-static int drm_crtc_convert_umode(struct drm_display_mode *out,
+int drm_crtc_convert_umode(struct drm_display_mode *out,
const struct drm_mode_modeinfo *in)
{
if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
@@ -1782,11 +1995,11 @@ int drm_mode_getcrtc(struct drm_device *dev,
}
crtc = obj_to_crtc(obj);
- crtc_resp->x = crtc->x;
- crtc_resp->y = crtc->y;
+ crtc_resp->x = crtc->state->x;
+ crtc_resp->y = crtc->state->y;
crtc_resp->gamma_size = crtc->gamma_size;
- if (crtc->fb)
- crtc_resp->fb_id = crtc->fb->base.id;
+ if (crtc->state->fb)
+ crtc_resp->fb_id = crtc->state->fb->base.id;
else
crtc_resp->fb_id = 0;
@@ -2213,45 +2426,6 @@ int drm_mode_set_config_internal(struct drm_mode_set *set)
}
EXPORT_SYMBOL(drm_mode_set_config_internal);
-/*
- * Checks that the framebuffer is big enough for the CRTC viewport
- * (x, y, hdisplay, vdisplay)
- */
-static int drm_crtc_check_viewport(const struct drm_crtc *crtc,
- int x, int y,
- const struct drm_display_mode *mode,
- const struct drm_framebuffer *fb)
-
-{
- int hdisplay, vdisplay;
-
- hdisplay = mode->hdisplay;
- vdisplay = mode->vdisplay;
-
- if (drm_mode_is_stereo(mode)) {
- struct drm_display_mode adjusted = *mode;
-
- drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
- hdisplay = adjusted.crtc_hdisplay;
- vdisplay = adjusted.crtc_vdisplay;
- }
-
- if (crtc->invert_dimensions)
- swap(hdisplay, vdisplay);
-
- if (hdisplay > fb->width ||
- vdisplay > fb->height ||
- x > fb->width - hdisplay ||
- y > fb->height - vdisplay) {
- DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
- fb->width, fb->height, hdisplay, vdisplay, x, y,
- crtc->invert_dimensions ? " (inverted)" : "");
- return -ENOSPC;
- }
-
- return 0;
-}
-
/**
* drm_mode_setcrtc - set CRTC configuration
* @dev: drm device for the ioctl
@@ -2272,22 +2446,15 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
struct drm_mode_crtc *crtc_req = data;
struct drm_mode_object *obj;
struct drm_crtc *crtc;
- struct drm_connector **connector_set = NULL, *connector;
- struct drm_framebuffer *fb = NULL;
- struct drm_display_mode *mode = NULL;
- struct drm_mode_set set;
- uint32_t __user *set_connectors_ptr;
+ uint32_t fb_id = -1;
+ uint32_t *connector_ids = NULL;
+ void *state = NULL;
int ret;
int i;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
- /* For some reason crtc x/y offsets are signed internally. */
- if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
- return -ERANGE;
-
- drm_modeset_lock_all(dev);
obj = drm_mode_object_find(dev, crtc_req->crtc_id,
DRM_MODE_OBJECT_CRTC);
if (!obj) {
@@ -2307,55 +2474,15 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
ret = -EINVAL;
goto out;
}
- fb = crtc->fb;
- /* Make refcounting symmetric with the lookup path. */
- drm_framebuffer_reference(fb);
+ fb_id = crtc->base.id;
} else {
- fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
- if (!fb) {
- DRM_DEBUG_KMS("Unknown FB ID%d\n",
- crtc_req->fb_id);
- ret = -ENOENT;
- goto out;
- }
- }
-
- mode = drm_mode_create(dev);
- if (!mode) {
- ret = -ENOMEM;
- goto out;
+ fb_id = crtc_req->fb_id;
}
-
- ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
- if (ret) {
- DRM_DEBUG_KMS("Invalid mode\n");
- goto out;
- }
-
- drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
-
- ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
- mode, fb);
- if (ret)
- goto out;
-
- }
-
- if (crtc_req->count_connectors == 0 && mode) {
- DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
- ret = -EINVAL;
- goto out;
- }
-
- if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
- DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
- crtc_req->count_connectors);
- ret = -EINVAL;
- goto out;
}
if (crtc_req->count_connectors > 0) {
- u32 out_id;
+ uint32_t __user *set_connectors_ptr =
+ (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
/* Avoid unbounded kernel memory allocation */
if (crtc_req->count_connectors > config->num_connector) {
@@ -2363,54 +2490,52 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
goto out;
}
- connector_set = kmalloc(crtc_req->count_connectors *
- sizeof(struct drm_connector *),
+ connector_ids = kmalloc(crtc_req->count_connectors *
+ sizeof(connector_ids[0]),
GFP_KERNEL);
- if (!connector_set) {
+ if (!connector_ids) {
ret = -ENOMEM;
goto out;
}
for (i = 0; i < crtc_req->count_connectors; i++) {
- set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
+ u32 out_id;
+
if (get_user(out_id, &set_connectors_ptr[i])) {
ret = -EFAULT;
goto out;
}
-
- obj = drm_mode_object_find(dev, out_id,
- DRM_MODE_OBJECT_CONNECTOR);
- if (!obj) {
- DRM_DEBUG_KMS("Connector id %d unknown\n",
- out_id);
- ret = -ENOENT;
- goto out;
- }
- connector = obj_to_connector(obj);
- DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
- connector->base.id,
- drm_get_connector_name(connector));
-
- connector_set[i] = connector;
+ connector_ids[i] = out_id;
}
}
- set.crtc = crtc;
- set.x = crtc_req->x;
- set.y = crtc_req->y;
- set.mode = mode;
- set.connectors = connector_set;
- set.num_connectors = crtc_req->count_connectors;
- set.fb = fb;
- ret = drm_mode_set_config_internal(&set);
+ state = dev->driver->atomic_begin(dev, 0);
+ if (IS_ERR(state))
+ return PTR_ERR(state);
-out:
- if (fb)
- drm_framebuffer_unreference(fb);
+ ret =
+ drm_mode_set_obj_prop(obj, state,
+ config->prop_mode, sizeof(crtc_req->mode), &crtc_req->mode) ||
+ drm_mode_set_obj_prop(obj, state,
+ config->prop_connector_ids,
+ crtc_req->count_connectors * sizeof(connector_ids[0]),
+ connector_ids) ||
+ drm_mode_set_obj_prop(obj, state,
+ config->prop_fb_id, fb_id, NULL) ||
+ drm_mode_set_obj_prop(obj, state,
+ config->prop_src_x, crtc_req->x, NULL) ||
+ drm_mode_set_obj_prop(obj, state,
+ config->prop_src_y, crtc_req->y, NULL) ||
+ dev->driver->atomic_check(dev, state);
+ if (ret)
+ goto out;
- kfree(connector_set);
- drm_mode_destroy(dev, mode);
- drm_modeset_unlock_all(dev);
+ ret = dev->driver->atomic_commit(dev, state);
+
+out:
+ if (state)
+ dev->driver->atomic_end(dev, state);
+ kfree(connector_ids);
return ret;
}
@@ -2435,7 +2560,7 @@ static int drm_mode_cursor_common(struct drm_device *dev,
}
crtc = obj_to_crtc(obj);
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
if (req->flags & DRM_MODE_CURSOR_BO) {
if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
ret = -ENXIO;
@@ -2459,7 +2584,7 @@ static int drm_mode_cursor_common(struct drm_device *dev,
}
}
out:
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
return ret;
@@ -3519,9 +3644,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_crtc *crtc,
if (crtc->funcs->set_property)
ret = crtc->funcs->set_property(crtc, state, property,
value, blob_data);
- if (!ret)
- drm_object_property_set_value(&crtc->base, &crtc->propvals,
- property, value, NULL);
return ret;
}
@@ -3847,15 +3969,60 @@ out:
return ret;
}
+static struct drm_pending_vblank_event *create_vblank_event(
+ struct drm_device *dev, struct drm_file *file_priv, uint64_t user_data)
+{
+ struct drm_pending_vblank_event *e = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+ file_priv->event_space -= sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+
+ e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = user_data;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy =
+ (void (*) (struct drm_pending_event *)) kfree;
+
+out:
+ return e;
+}
+
+static void destroy_vblank_event(struct drm_device *dev,
+ struct drm_file *file_priv, struct drm_pending_vblank_event *e)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+}
+
int drm_mode_page_flip_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_config *config = &dev->mode_config;
struct drm_mode_object *obj;
struct drm_crtc *crtc;
- struct drm_framebuffer *fb = NULL, *old_fb = NULL;
struct drm_pending_vblank_event *e = NULL;
- unsigned long flags;
+ void *state;
int ret = -EINVAL;
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
@@ -3870,92 +4037,37 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
return -ENOENT;
crtc = obj_to_crtc(obj);
- ww_mutex_lock(&crtc->mutex, NULL);
- if (crtc->fb == NULL) {
- /* The framebuffer is currently unbound, presumably
- * due to a hotplug event, that userspace has not
- * yet discovered.
- */
- ret = -EBUSY;
- goto out;
- }
-
- if (crtc->funcs->page_flip == NULL)
- goto out;
-
- fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
- if (!fb) {
- ret = -ENOENT;
- goto out;
- }
-
- ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
- if (ret)
- goto out;
-
- if (crtc->fb->pixel_format != fb->pixel_format) {
- DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
- ret = -EINVAL;
- goto out;
- }
+ state = dev->driver->atomic_begin(dev, page_flip->flags);
+ if (IS_ERR(state))
+ return PTR_ERR(state);
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
- ret = -ENOMEM;
- spin_lock_irqsave(&dev->event_lock, flags);
- if (file_priv->event_space < sizeof e->event) {
- spin_unlock_irqrestore(&dev->event_lock, flags);
+ e = create_vblank_event(dev, file_priv, page_flip->user_data);
+ if (!e) {
+ ret = -ENOMEM;
goto out;
}
- file_priv->event_space -= sizeof e->event;
- spin_unlock_irqrestore(&dev->event_lock, flags);
-
- e = kzalloc(sizeof *e, GFP_KERNEL);
- if (e == NULL) {
- spin_lock_irqsave(&dev->event_lock, flags);
- file_priv->event_space += sizeof e->event;
- spin_unlock_irqrestore(&dev->event_lock, flags);
+ ret = dev->driver->atomic_set_event(dev, state, obj, e);
+ if (ret) {
goto out;
}
-
- e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
- e->event.base.length = sizeof e->event;
- e->event.user_data = page_flip->user_data;
- e->base.event = &e->event.base;
- e->base.file_priv = file_priv;
- e->base.destroy =
- (void (*) (struct drm_pending_event *)) kfree;
}
- old_fb = crtc->fb;
- ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
- if (ret) {
- if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
- spin_lock_irqsave(&dev->event_lock, flags);
- file_priv->event_space += sizeof e->event;
- spin_unlock_irqrestore(&dev->event_lock, flags);
- kfree(e);
- }
- /* Keep the old fb, don't unref it. */
- old_fb = NULL;
- } else {
- /*
- * Warn if the driver hasn't properly updated the crtc->fb
- * field to reflect that the new framebuffer is now used.
- * Failing to do so will screw with the reference counting
- * on framebuffers.
- */
- WARN_ON(crtc->fb != fb);
- /* Unref only the old framebuffer. */
- fb = NULL;
- }
+ ret = drm_mode_set_obj_prop(obj, state,
+ config->prop_fb_id, page_flip->fb_id, NULL);
+ if (ret)
+ goto out;
-out:
- if (fb)
- drm_framebuffer_unreference(fb);
- if (old_fb)
- drm_framebuffer_unreference(old_fb);
- ww_mutex_unlock(&crtc->mutex);
+ ret = dev->driver->atomic_check(dev, state);
+ if (ret)
+ goto out;
+ ret = dev->driver->atomic_commit(dev, state);
+
+out:
+ if (ret && e)
+ destroy_vblank_event(dev, file_priv, e);
+ dev->driver->atomic_end(dev, state);
return ret;
}
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
index 61b5a47..df3ad41 100644
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -429,13 +429,8 @@ EXPORT_SYMBOL_GPL(drm_fbdev_cma_fini);
*/
void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma)
{
- if (fbdev_cma) {
- struct drm_device *dev = fbdev_cma->fb_helper.dev;
-
- drm_modeset_lock_all(dev);
- drm_fb_helper_restore_fbdev_mode(&fbdev_cma->fb_helper);
- drm_modeset_unlock_all(dev);
- }
+ if (fbdev_cma)
+ drm_fb_helper_restore_fbdev_mode(&fbdev_cma->fb_helper, false);
}
EXPORT_SYMBOL_GPL(drm_fbdev_cma_restore_mode);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 5773468..294fe5e 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -276,12 +276,15 @@ EXPORT_SYMBOL(drm_fb_helper_debug_leave);
/**
* drm_fb_helper_restore_fbdev_mode - restore fbdev configuration
* @fb_helper: fbcon to restore
+ * @lockless: true in drm_fb_helper_force_kernel_mode() path, to avoid
+ * blocking in panic case, everywhere else should use false
*
* This should be called from driver's drm ->lastclose callback
* when implementing an fbcon on top of kms using this helper. This ensures that
* the user isn't greeted with a black screen when e.g. X dies.
*/
-bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
+bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper,
+ bool lockless)
{
struct drm_device *dev = fb_helper->dev;
struct drm_plane *plane;
@@ -289,9 +292,8 @@ bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
void *state;
int i;
- drm_warn_on_modeset_not_all_locked(dev);
-
- state = dev->driver->atomic_begin(dev, 0);
+ state = dev->driver->atomic_begin(dev, lockless ?
+ DRM_MODE_ATOMIC_NOLOCK : 0);
if (IS_ERR(state)) {
DRM_ERROR("failed to restore fbdev mode\n");
return true;
@@ -343,7 +345,7 @@ static bool drm_fb_helper_force_kernel_mode(void)
if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF)
continue;
- ret = drm_fb_helper_restore_fbdev_mode(helper);
+ ret = drm_fb_helper_restore_fbdev_mode(helper, true);
if (ret)
error = true;
}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 4ae55b8..c1ef671 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -14,6 +14,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include "exynos_drm_crtc.h"
#include "exynos_drm_drv.h"
@@ -286,7 +287,9 @@ static int exynos_drm_crtc_set_property(struct drm_crtc *crtc,
return 0;
}
- return -EINVAL;
+ return drm_crtc_set_property(crtc,
+ drm_atomic_get_crtc_state(crtc, state),
+ property, val, blob_data);
}
static struct drm_crtc_funcs exynos_crtc_funcs = {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index e7c2f2d..8032021 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -354,7 +354,5 @@ void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
if (!private || !private->fb_helper)
return;
- drm_modeset_lock_all(dev);
- drm_fb_helper_restore_fbdev_mode(private->fb_helper);
- drm_modeset_unlock_all(dev);
+ drm_fb_helper_restore_fbdev_mode(private->fb_helper, false);
}
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
index 8fbfa06..2b4bbf5 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -1022,6 +1022,7 @@ const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
.cursor_move = gma_crtc_cursor_move,
.gamma_set = gma_crtc_gamma_set,
.set_config = gma_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = gma_crtc_destroy,
};
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 34c3116..a6545fe 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -153,11 +153,9 @@ static void psb_lastclose(struct drm_device *dev)
struct drm_psb_private *dev_priv = dev->dev_private;
struct psb_fbdev *fbdev = dev_priv->fbdev;
- drm_modeset_lock_all(dev);
- ret = drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper);
+ ret = drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper, false);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
- drm_modeset_unlock_all(dev);
return;
}
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index c8841ac..35e13ef 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -444,6 +444,7 @@ const struct drm_crtc_funcs psb_intel_crtc_funcs = {
.cursor_move = gma_crtc_cursor_move,
.gamma_set = gma_crtc_gamma_set,
.set_config = gma_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = gma_crtc_destroy,
};
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3b4e60e..02d705b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2232,11 +2232,11 @@ void intel_display_handle_reset(struct drm_device *dev)
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
if (intel_crtc->active)
dev_priv->display.update_plane(crtc, crtc->fb,
crtc->x, crtc->y);
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
}
}
@@ -7550,7 +7550,7 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
if (encoder->crtc) {
crtc = encoder->crtc;
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
old->dpms_mode = connector->dpms;
old->load_detect_temp = false;
@@ -7581,7 +7581,7 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
return false;
}
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
intel_encoder->new_crtc = to_intel_crtc(crtc);
to_intel_connector(connector)->new_encoder = intel_encoder;
@@ -7609,7 +7609,7 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
if (IS_ERR(fb)) {
DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
return false;
}
@@ -7617,7 +7617,7 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
if (old->release_fb)
old->release_fb->funcs->destroy(old->release_fb);
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
return false;
}
@@ -7648,7 +7648,7 @@ void intel_release_load_detect_pipe(struct drm_connector *connector,
drm_framebuffer_unreference(old->release_fb);
}
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
return;
}
@@ -7656,7 +7656,7 @@ void intel_release_load_detect_pipe(struct drm_connector *connector,
if (old->dpms_mode != DRM_MODE_DPMS_ON)
connector->funcs->dpms(connector, old->dpms_mode);
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
}
static int i9xx_pll_refclk(struct drm_device *dev,
@@ -9778,6 +9778,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
.cursor_move = intel_crtc_cursor_move,
.gamma_set = intel_crtc_gamma_set,
.set_config = intel_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = intel_crtc_destroy,
.page_flip = intel_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 895fcb4..4f7046d 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -313,11 +313,7 @@ void intel_fbdev_restore_mode(struct drm_device *dev)
if (INTEL_INFO(dev)->num_pipes == 0)
return;
- drm_modeset_lock_all(dev);
-
- ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
+ ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper, false);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
-
- drm_modeset_unlock_all(dev);
}
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index ee6ed63..8b796e1 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1296,6 +1296,7 @@ static const struct drm_crtc_funcs mga_crtc_funcs = {
.cursor_move = mga_crtc_cursor_move,
.gamma_set = mga_crtc_gamma_set,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = mga_crtc_destroy,
};
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
index 37a3fd2..ba6ed7d 100644
--- a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
+++ b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
@@ -427,8 +427,9 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc,
static int mdp4_crtc_set_property(struct drm_crtc *crtc, void *state,
struct drm_property *property, uint64_t val, void *blob_data)
{
- // XXX
- return -EINVAL;
+ return drm_crtc_set_property(crtc,
+ drm_atomic_get_crtc_state(crtc, state),
+ property, val, blob_data);
}
#define CURSOR_WIDTH 64
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index dadd55a..cd7cd43 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -319,11 +319,8 @@ static void msm_preclose(struct drm_device *dev, struct drm_file *file)
static void msm_lastclose(struct drm_device *dev)
{
struct msm_drm_private *priv = dev->dev_private;
- if (priv->fbdev) {
- drm_modeset_lock_all(dev);
- drm_fb_helper_restore_fbdev_mode(priv->fbdev);
- drm_modeset_unlock_all(dev);
- }
+ if (priv->fbdev)
+ drm_fb_helper_restore_fbdev_mode(priv->fbdev, false);
}
static irqreturn_t msm_irq(DRM_IRQ_ARGS)
diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
index 0e3270c..605fdb6 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
@@ -1086,6 +1086,7 @@ static const struct drm_crtc_funcs nv04_crtc_funcs = {
.cursor_move = nv04_crtc_cursor_move,
.gamma_set = nv_crtc_gamma_set,
.set_config = nouveau_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.page_flip = nouveau_crtc_page_flip,
.destroy = nv_crtc_destroy,
};
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index f8e66c0..bfcdf8e 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -1327,6 +1327,7 @@ static const struct drm_crtc_funcs nv50_crtc_func = {
.cursor_move = nv50_crtc_cursor_move,
.gamma_set = nv50_crtc_gamma_set,
.set_config = nouveau_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = nv50_crtc_destroy,
.page_flip = nouveau_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index c040fc6..865e863 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -307,13 +307,13 @@ static void page_flip_worker(struct work_struct *work)
struct drm_display_mode *mode = &crtc->mode;
struct drm_gem_object *bo;
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb,
0, 0, mode->hdisplay, mode->vdisplay,
crtc->x << 16, crtc->y << 16,
mode->hdisplay << 16, mode->vdisplay << 16,
vblank_cb, crtc);
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
bo = omap_framebuffer_bo(crtc->fb, 0);
drm_gem_object_unreference_unlocked(bo);
@@ -367,14 +367,19 @@ static int omap_crtc_set_property(struct drm_crtc *crtc, void *state,
{
struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
struct omap_drm_private *priv = crtc->dev->dev_private;
+ struct drm_crtc_state *cstate = drm_atomic_get_crtc_state(crtc, state);
+ int ret;
if (property == priv->rotation_prop) {
- crtc->invert_dimensions =
+ cstate->invert_dimensions =
!!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270)));
}
- return omap_plane_set_property(omap_crtc->plane, state,
+ ret = omap_plane_set_property(omap_crtc->plane, state,
property, val, blob_data);
+ if (ret)
+ ret = drm_crtc_set_property(crtc, cstate, property, val, blob_data);
+ return ret;
}
static const struct drm_crtc_funcs omap_crtc_funcs = {
@@ -447,7 +452,7 @@ static void apply_worker(struct work_struct *work)
* the callbacks and list modification all serialized
* with respect to modesetting ioctls from userspace.
*/
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
dispc_runtime_get();
/*
@@ -492,7 +497,7 @@ static void apply_worker(struct work_struct *work)
out:
dispc_runtime_put();
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
}
int omap_crtc_apply(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index e1e794a..cfd40f9 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -553,7 +553,7 @@ static void dev_lastclose(struct drm_device *dev)
*/
for (i = 0; i < priv->num_crtcs; i++) {
drm_object_property_set_value(&priv->crtcs[i]->base,
- &priv->crtcs[i]->propvals,
+ &priv->crtcs[i]->state->propvals,
priv->rotation_prop, 0, NULL);
}
@@ -564,9 +564,7 @@ static void dev_lastclose(struct drm_device *dev)
}
}
- drm_modeset_lock_all(dev);
- ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev);
- drm_modeset_unlock_all(dev);
+ ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev, false);
if (ret)
DBG("failed to restore crtc mode");
}
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index d36abbc..29b9572 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -29,6 +29,7 @@
#include "qxl_drv.h"
#include "qxl_object.h"
#include "drm_crtc_helper.h"
+#include "drm_atomic_helper.h"
static bool qxl_head_enabled(struct qxl_head *head)
{
@@ -373,6 +374,7 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = {
.cursor_set2 = qxl_crtc_cursor_set2,
.cursor_move = qxl_crtc_cursor_move,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = qxl_crtc_destroy,
};
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 7b25381..84e0c5e 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -32,6 +32,7 @@
#include <linux/pm_runtime.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
static void avivo_crtc_load_lut(struct drm_crtc *crtc)
@@ -544,6 +545,7 @@ static const struct drm_crtc_funcs radeon_crtc_funcs = {
.cursor_move = radeon_crtc_cursor_move,
.gamma_set = radeon_crtc_gamma_set,
.set_config = radeon_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = radeon_crtc_destroy,
.page_flip = radeon_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index a9d24e4..c840ba8 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -17,6 +17,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
@@ -528,6 +529,7 @@ static int rcar_du_crtc_page_flip(struct drm_crtc *crtc,
static const struct drm_crtc_funcs crtc_funcs = {
.destroy = drm_crtc_cleanup,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.page_flip = rcar_du_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
index 9e86b99..9209526 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
@@ -17,6 +17,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
@@ -496,6 +497,7 @@ static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
static const struct drm_crtc_funcs crtc_funcs = {
.destroy = drm_crtc_cleanup,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.page_flip = shmob_drm_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
index 490f771..59f7fd1 100644
--- a/drivers/gpu/drm/tegra/fb.c
+++ b/drivers/gpu/drm/tegra/fb.c
@@ -384,9 +384,6 @@ void tegra_drm_fb_exit(struct drm_device *drm)
void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev)
{
- if (fbdev) {
- drm_modeset_lock_all(fbdev->base.dev);
- drm_fb_helper_restore_fbdev_mode(&fbdev->base);
- drm_modeset_unlock_all(fbdev->base.dev);
- }
+ if (fbdev)
+ drm_fb_helper_restore_fbdev_mode(&fbdev->base, false);
}
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index d36efc1..34d9804 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -411,6 +411,7 @@ static int tilcdc_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
static const struct drm_crtc_funcs tilcdc_crtc_funcs = {
.destroy = tilcdc_crtc_destroy,
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.page_flip = tilcdc_crtc_page_flip,
};
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 2ae1eb7..e05b2ea 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -14,6 +14,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include "udl_drv.h"
/*
@@ -383,6 +384,7 @@ static struct drm_crtc_helper_funcs udl_helper_funcs = {
static const struct drm_crtc_funcs udl_crtc_funcs = {
.set_config = drm_crtc_helper_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.destroy = udl_crtc_destroy,
};
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 7b3bf18..36c9301 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -186,7 +186,7 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
* can do this since the caller in the drm core doesn't check anything
* which is protected by any looks.
*/
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
drm_modeset_lock_all(dev_priv->dev);
/* A lot of the code assumes this */
@@ -251,9 +251,7 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
ret = 0;
out:
drm_modeset_unlock_all(dev_priv->dev);
-// XXX umm, we probably need the state object here to properly
-// re-aquire the lock..
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
return ret;
}
@@ -274,7 +272,7 @@ int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
* can do this since the caller in the drm core doesn't check anything
* which is protected by any looks.
*/
- ww_mutex_unlock(&crtc->mutex);
+ drm_modeset_unlock_crtc(crtc);
drm_modeset_lock_all(dev_priv->dev);
vmw_cursor_update_position(dev_priv, shown,
@@ -282,9 +280,7 @@ int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
du->cursor_y + du->hotspot_y);
drm_modeset_unlock_all(dev_priv->dev);
-// XXX umm, we probably need the state object here to properly
-// re-aquire the lock..
- ww_mutex_lock(&crtc->mutex, NULL);
+ drm_modeset_lock_crtc(crtc, NULL);
return 0;
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index 79f7e8e..5d25f21 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -298,6 +298,7 @@ static struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
.cursor_move = vmw_du_crtc_cursor_move,
.gamma_set = vmw_du_crtc_gamma_set,
.destroy = vmw_ldu_crtc_destroy,
+ .set_property = drm_atomic_helper_crtc_set_property,
.set_config = vmw_ldu_crtc_set_config,
};
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
index 26387c3..f65fec7 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
@@ -394,6 +394,7 @@ static struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
.gamma_set = vmw_du_crtc_gamma_set,
.destroy = vmw_sou_crtc_destroy,
.set_config = vmw_sou_crtc_set_config,
+ .set_property = drm_atomic_helper_crtc_set_property,
.page_flip = vmw_du_page_flip,
};
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index d0d29e1..44b51dd 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -65,6 +65,10 @@ struct drm_atomic_helper_funcs {
struct drm_plane_state *(*get_plane_state)(struct drm_plane *plane, void *state);
int (*check_plane_state)(struct drm_plane *plane, struct drm_plane_state *pstate);
int (*commit_plane_state)(struct drm_plane *plane, struct drm_plane_state *pstate);
+
+ struct drm_crtc_state *(*get_crtc_state)(struct drm_crtc *crtc, void *state);
+ int (*check_crtc_state)(struct drm_crtc *crtc, struct drm_crtc_state *cstate);
+ int (*commit_crtc_state)(struct drm_crtc *crtc, struct drm_crtc_state *cstate);
};
const extern struct drm_atomic_helper_funcs drm_atomic_helper_funcs;
@@ -108,6 +112,37 @@ drm_atomic_commit_plane_state(struct drm_plane *plane,
return funcs->commit_plane_state(plane, pstate);
}
+int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc, void *state,
+ struct drm_property *property, uint64_t val, void *blob_data);
+void drm_atomic_helper_init_crtc_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate, void *state);
+
+static inline struct drm_crtc_state *
+drm_atomic_get_crtc_state(struct drm_crtc *crtc, void *state)
+{
+ const struct drm_atomic_helper_funcs *funcs =
+ crtc->dev->driver->atomic_helpers;
+ return funcs->get_crtc_state(crtc, state);
+}
+
+static inline int
+drm_atomic_check_crtc_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate)
+{
+ const struct drm_atomic_helper_funcs *funcs =
+ crtc->dev->driver->atomic_helpers;
+ return funcs->check_crtc_state(crtc, cstate);
+}
+
+static inline int
+drm_atomic_commit_crtc_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate)
+{
+ const struct drm_atomic_helper_funcs *funcs =
+ crtc->dev->driver->atomic_helpers;
+ return funcs->commit_crtc_state(crtc, cstate);
+}
+
/**
* struct drm_atomic_helper_state - the state object used by atomic helpers
*/
@@ -117,6 +152,12 @@ struct drm_atomic_helper_state {
uint32_t flags;
struct drm_plane **planes;
struct drm_plane_state **pstates;
+ struct drm_crtc **crtcs;
+ struct drm_crtc_state **cstates;
+
+ struct ww_acquire_ctx ww_ctx;
+ struct list_head locked_crtcs;
+ bool locks_dropped;
};
static inline void
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index dfe8d20..2531658 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -333,6 +333,8 @@ struct drm_pending_vblank_event;
struct drm_plane;
struct drm_bridge;
+extern struct ww_class crtc_ww_class;
+
/**
* drm_crtc_funcs - control CRTCs for a given device
* @save: save CRTC state
@@ -399,18 +401,51 @@ struct drm_crtc_funcs {
};
/**
+ * drm_crtc_state - mutable crtc state
+ * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
+ * invert the width/height of the crtc. This is used if the driver
+ * is performing 90 or 270 degree rotated scanout
+ * @set_config: needs modeset (crtc->set_config())
+ * @new_fb: has the fb been changed
+ * @mode_valid: a valid mode has been set
+ * @num_connector_ids: the number of connector-ids
+ * @connector_ids: array of connector ids
+ * @mode: current mode timings
+ * @fb: the framebuffer that the CRTC is currently bound to
+ * @x: x position on screen
+ * @y: y position on screen
+ * @event: pending pageflip event
+ * @propvals: property values
+ * @state: current global/toplevel state object (for atomic) while an
+ * update is in progress, NULL otherwise.
+ */
+struct drm_crtc_state {
+ bool invert_dimensions : 1;
+ bool set_config : 1;
+ bool new_fb : 1;
+ bool mode_valid : 1; /* drop this if when mode a refcnt'd ptr */
+ uint8_t num_connector_ids;
+ uint32_t *connector_ids;
+ struct drm_mode_modeinfo mode;
+ struct drm_framebuffer *fb;
+ int x, y;
+
+ struct drm_pending_vblank_event *event;
+
+ struct drm_object_property_values propvals;
+
+ void *state;
+};
+
+/**
* drm_crtc - central CRTC control structure
* @dev: parent DRM device
* @head: list management
+ * @id: CRTC number, 0..n
* @base: base KMS object for ID tracking etc.
+ * @state: the mutable state
* @enabled: is this CRTC enabled?
- * @mode: current mode timings
* @hwmode: mode timings as programmed to hw regs
- * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
- * invert the width/height of the crtc. This is used if the driver
- * is performing 90 or 270 degree rotated scanout
- * @x: x position on screen
- * @y: y position on screen
* @funcs: CRTC control functions
* @gamma_size: size of gamma ramp
* @gamma_store: gamma ramp values
@@ -427,6 +462,8 @@ struct drm_crtc {
struct drm_device *dev;
struct list_head head;
+ int id;
+
/**
* crtc mutex
*
@@ -436,10 +473,15 @@ struct drm_crtc {
*/
struct ww_mutex mutex;
+ /**
+ * CRTC's that are locked as part of an atomic update are added to
+ * a list (so we know what to unlock at the end).
+ */
+ struct list_head lock_head;
+
struct drm_mode_object base;
- /* framebuffer the connector is currently bound to */
- struct drm_framebuffer *fb;
+ struct drm_crtc_state *state;
/* Temporary tracking of the old fb while a modeset is ongoing. Used
* by drm_mode_set_config_internal to implement correct refcounting. */
@@ -447,17 +489,11 @@ struct drm_crtc {
bool enabled;
- /* Requested mode from modesetting. */
- struct drm_display_mode mode;
-
/* Programmed mode in hw, after adjustments for encoders,
* crtc, panel scaling etc. Needed for timestamping etc.
*/
struct drm_display_mode hwmode;
- bool invert_dimensions;
-
- int x, y;
const struct drm_crtc_funcs *funcs;
/* CRTC gamma size for reporting to userspace */
@@ -471,7 +507,15 @@ struct drm_crtc {
void *helper_private;
struct drm_object_properties properties;
- struct drm_object_property_values propvals;
+
+ /* These are (temporary) duplicate information from what is in the
+ * drm_crtc_state struct.. keeping duplicate copy here makes the
+ * switch to atomic far less intrusive. Once all the drivers and
+ * the crtc/fb helpers are updated, then we can remove these:
+ */
+ struct drm_framebuffer *fb;
+ int x, y;
+ struct drm_display_mode mode;
};
@@ -951,6 +995,8 @@ struct drm_mode_config {
struct drm_property *prop_crtc_h;
struct drm_property *prop_fb_id;
struct drm_property *prop_crtc_id;
+ struct drm_property *prop_connector_ids;
+ struct drm_property *prop_mode;
struct drm_property *edid_property;
struct drm_property *dpms_property;
@@ -998,6 +1044,8 @@ struct drm_prop_enum_list {
char *name;
};
+int drm_modeset_lock_crtc(struct drm_crtc *crtc, void *state);
+void drm_modeset_unlock_crtc(struct drm_crtc *crtc);
extern void drm_modeset_lock_all(struct drm_device *dev);
extern void drm_modeset_unlock_all(struct drm_device *dev);
extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
@@ -1006,6 +1054,14 @@ extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
+extern int drm_crtc_check_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state);
+extern void drm_crtc_commit_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state);
+extern int drm_crtc_set_property(struct drm_crtc *crtc,
+ struct drm_crtc_state *state,
+ struct drm_property *property,
+ uint64_t value, void *blob_data);
extern void drm_connector_ida_init(void);
extern void drm_connector_ida_destroy(void);
@@ -1055,6 +1111,7 @@ extern const char *drm_get_tv_subconnector_name(int val);
extern const char *drm_get_tv_select_name(int val);
extern void drm_fb_release(struct drm_file *file_priv);
extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
+extern int drm_crtc_convert_umode(struct drm_display_mode *out, const struct drm_mode_modeinfo *in);
extern bool drm_probe_ddc(struct i2c_adapter *adapter);
extern struct edid *drm_get_edid(struct drm_connector *connector,
struct i2c_adapter *adapter);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 471f276..b130a4d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -108,7 +108,8 @@ int drm_fb_helper_set_par(struct fb_info *info);
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info);
-bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
+bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper,
+ bool lockless);
void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
uint32_t fb_width, uint32_t fb_height);
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 9fed70e..a913953 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -508,4 +508,6 @@ struct drm_mode_destroy_dumb {
uint32_t handle;
};
+#define DRM_MODE_ATOMIC_NOLOCK 0x8000 /* only used internally */
+
#endif
--
1.8.4.2
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