* [PATCH v6 1/8] drm/atomic: Move __drm_atomic_helper_disable_plane/set_config()
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 2/8] drm/fb-helper: Remove drm_fb_helper_crtc Noralf Trønnes
` (8 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: Maxime Ripard, Daniel Vetter, intel-gfx
Prepare for moving drm_fb_helper modesetting code to drm_client.
drm_client will be linked to drm.ko, so move
__drm_atomic_helper_disable_plane() and __drm_atomic_helper_set_config()
out of drm_kms_helper.ko.
While at it, fix two checkpatch complaints:
- WARNING: Block comments use a trailing */ on a separate line
- CHECK: Alignment should match open parenthesis
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
drivers/gpu/drm/drm_atomic.c | 168 ++++++++++++++++++++++++++++
drivers/gpu/drm/drm_atomic_helper.c | 164 ---------------------------
drivers/gpu/drm/drm_crtc_internal.h | 5 +
include/drm/drm_atomic_helper.h | 4 -
4 files changed, 173 insertions(+), 168 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index f4924cb7f495..79335084a502 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1174,6 +1174,174 @@ int drm_atomic_nonblocking_commit(struct drm_atomic_state *state)
}
EXPORT_SYMBOL(drm_atomic_nonblocking_commit);
+/* just used from drm-client and atomic-helper: */
+int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
+ struct drm_plane_state *plane_state)
+{
+ int ret;
+
+ ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
+ if (ret != 0)
+ return ret;
+
+ drm_atomic_set_fb_for_plane(plane_state, NULL);
+ plane_state->crtc_x = 0;
+ plane_state->crtc_y = 0;
+ plane_state->crtc_w = 0;
+ plane_state->crtc_h = 0;
+ plane_state->src_x = 0;
+ plane_state->src_y = 0;
+ plane_state->src_w = 0;
+ plane_state->src_h = 0;
+
+ return 0;
+}
+EXPORT_SYMBOL(__drm_atomic_helper_disable_plane);
+
+static int update_output_state(struct drm_atomic_state *state,
+ struct drm_mode_set *set)
+{
+ struct drm_device *dev = set->crtc->dev;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *new_crtc_state;
+ struct drm_connector *connector;
+ struct drm_connector_state *new_conn_state;
+ int ret, i;
+
+ ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
+ state->acquire_ctx);
+ if (ret)
+ return ret;
+
+ /* First disable all connectors on the target crtc. */
+ ret = drm_atomic_add_affected_connectors(state, set->crtc);
+ if (ret)
+ return ret;
+
+ for_each_new_connector_in_state(state, connector, new_conn_state, i) {
+ if (new_conn_state->crtc == set->crtc) {
+ ret = drm_atomic_set_crtc_for_connector(new_conn_state,
+ NULL);
+ if (ret)
+ return ret;
+
+ /* Make sure legacy setCrtc always re-trains */
+ new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
+ }
+ }
+
+ /* Then set all connectors from set->connectors on the target crtc */
+ for (i = 0; i < set->num_connectors; i++) {
+ new_conn_state = drm_atomic_get_connector_state(state,
+ set->connectors[i]);
+ if (IS_ERR(new_conn_state))
+ return PTR_ERR(new_conn_state);
+
+ ret = drm_atomic_set_crtc_for_connector(new_conn_state,
+ set->crtc);
+ if (ret)
+ return ret;
+ }
+
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ /*
+ * Don't update ->enable for the CRTC in the set_config request,
+ * since a mismatch would indicate a bug in the upper layers.
+ * The actual modeset code later on will catch any
+ * inconsistencies here.
+ */
+ if (crtc == set->crtc)
+ continue;
+
+ if (!new_crtc_state->connector_mask) {
+ ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
+ NULL);
+ if (ret < 0)
+ return ret;
+
+ new_crtc_state->active = false;
+ }
+ }
+
+ return 0;
+}
+
+/* just used from drm-client and atomic-helper: */
+int __drm_atomic_helper_set_config(struct drm_mode_set *set,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state;
+ struct drm_plane_state *primary_state;
+ struct drm_crtc *crtc = set->crtc;
+ int hdisplay, vdisplay;
+ int ret;
+
+ crtc_state = drm_atomic_get_crtc_state(state, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ primary_state = drm_atomic_get_plane_state(state, crtc->primary);
+ if (IS_ERR(primary_state))
+ return PTR_ERR(primary_state);
+
+ if (!set->mode) {
+ WARN_ON(set->fb);
+ WARN_ON(set->num_connectors);
+
+ ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
+ if (ret != 0)
+ return ret;
+
+ crtc_state->active = false;
+
+ ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
+ if (ret != 0)
+ return ret;
+
+ drm_atomic_set_fb_for_plane(primary_state, NULL);
+
+ goto commit;
+ }
+
+ WARN_ON(!set->fb);
+ WARN_ON(!set->num_connectors);
+
+ ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
+ if (ret != 0)
+ return ret;
+
+ crtc_state->active = true;
+
+ ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
+ if (ret != 0)
+ return ret;
+
+ drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
+
+ drm_atomic_set_fb_for_plane(primary_state, set->fb);
+ primary_state->crtc_x = 0;
+ primary_state->crtc_y = 0;
+ primary_state->crtc_w = hdisplay;
+ primary_state->crtc_h = vdisplay;
+ primary_state->src_x = set->x << 16;
+ primary_state->src_y = set->y << 16;
+ if (drm_rotation_90_or_270(primary_state->rotation)) {
+ primary_state->src_w = vdisplay << 16;
+ primary_state->src_h = hdisplay << 16;
+ } else {
+ primary_state->src_w = hdisplay << 16;
+ primary_state->src_h = vdisplay << 16;
+ }
+
+commit:
+ ret = update_output_state(state, set);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+EXPORT_SYMBOL(__drm_atomic_helper_set_config);
+
void drm_atomic_print_state(const struct drm_atomic_state *state)
{
struct drm_printer p = drm_info_printer(state->dev->dev);
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 79dbeafb9a52..486c998623ef 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2841,95 +2841,6 @@ int drm_atomic_helper_disable_plane(struct drm_plane *plane,
}
EXPORT_SYMBOL(drm_atomic_helper_disable_plane);
-/* just used from fb-helper and atomic-helper: */
-int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
- struct drm_plane_state *plane_state)
-{
- int ret;
-
- ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
- if (ret != 0)
- return ret;
-
- drm_atomic_set_fb_for_plane(plane_state, NULL);
- plane_state->crtc_x = 0;
- plane_state->crtc_y = 0;
- plane_state->crtc_w = 0;
- plane_state->crtc_h = 0;
- plane_state->src_x = 0;
- plane_state->src_y = 0;
- plane_state->src_w = 0;
- plane_state->src_h = 0;
-
- return 0;
-}
-
-static int update_output_state(struct drm_atomic_state *state,
- struct drm_mode_set *set)
-{
- struct drm_device *dev = set->crtc->dev;
- struct drm_crtc *crtc;
- struct drm_crtc_state *new_crtc_state;
- struct drm_connector *connector;
- struct drm_connector_state *new_conn_state;
- int ret, i;
-
- ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
- state->acquire_ctx);
- if (ret)
- return ret;
-
- /* First disable all connectors on the target crtc. */
- ret = drm_atomic_add_affected_connectors(state, set->crtc);
- if (ret)
- return ret;
-
- for_each_new_connector_in_state(state, connector, new_conn_state, i) {
- if (new_conn_state->crtc == set->crtc) {
- ret = drm_atomic_set_crtc_for_connector(new_conn_state,
- NULL);
- if (ret)
- return ret;
-
- /* Make sure legacy setCrtc always re-trains */
- new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
- }
- }
-
- /* Then set all connectors from set->connectors on the target crtc */
- for (i = 0; i < set->num_connectors; i++) {
- new_conn_state = drm_atomic_get_connector_state(state,
- set->connectors[i]);
- if (IS_ERR(new_conn_state))
- return PTR_ERR(new_conn_state);
-
- ret = drm_atomic_set_crtc_for_connector(new_conn_state,
- set->crtc);
- if (ret)
- return ret;
- }
-
- for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
- /* Don't update ->enable for the CRTC in the set_config request,
- * since a mismatch would indicate a bug in the upper layers.
- * The actual modeset code later on will catch any
- * inconsistencies here. */
- if (crtc == set->crtc)
- continue;
-
- if (!new_crtc_state->connector_mask) {
- ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
- NULL);
- if (ret < 0)
- return ret;
-
- new_crtc_state->active = false;
- }
- }
-
- return 0;
-}
-
/**
* drm_atomic_helper_set_config - set a new config from userspace
* @set: mode set configuration
@@ -2974,81 +2885,6 @@ int drm_atomic_helper_set_config(struct drm_mode_set *set,
}
EXPORT_SYMBOL(drm_atomic_helper_set_config);
-/* just used from fb-helper and atomic-helper: */
-int __drm_atomic_helper_set_config(struct drm_mode_set *set,
- struct drm_atomic_state *state)
-{
- struct drm_crtc_state *crtc_state;
- struct drm_plane_state *primary_state;
- struct drm_crtc *crtc = set->crtc;
- int hdisplay, vdisplay;
- int ret;
-
- crtc_state = drm_atomic_get_crtc_state(state, crtc);
- if (IS_ERR(crtc_state))
- return PTR_ERR(crtc_state);
-
- primary_state = drm_atomic_get_plane_state(state, crtc->primary);
- if (IS_ERR(primary_state))
- return PTR_ERR(primary_state);
-
- if (!set->mode) {
- WARN_ON(set->fb);
- WARN_ON(set->num_connectors);
-
- ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
- if (ret != 0)
- return ret;
-
- crtc_state->active = false;
-
- ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
- if (ret != 0)
- return ret;
-
- drm_atomic_set_fb_for_plane(primary_state, NULL);
-
- goto commit;
- }
-
- WARN_ON(!set->fb);
- WARN_ON(!set->num_connectors);
-
- ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
- if (ret != 0)
- return ret;
-
- crtc_state->active = true;
-
- ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
- if (ret != 0)
- return ret;
-
- drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
-
- drm_atomic_set_fb_for_plane(primary_state, set->fb);
- primary_state->crtc_x = 0;
- primary_state->crtc_y = 0;
- primary_state->crtc_w = hdisplay;
- primary_state->crtc_h = vdisplay;
- primary_state->src_x = set->x << 16;
- primary_state->src_y = set->y << 16;
- if (drm_rotation_90_or_270(primary_state->rotation)) {
- primary_state->src_w = vdisplay << 16;
- primary_state->src_h = hdisplay << 16;
- } else {
- primary_state->src_w = hdisplay << 16;
- primary_state->src_h = vdisplay << 16;
- }
-
-commit:
- ret = update_output_state(state, set);
- if (ret)
- return ret;
-
- return 0;
-}
-
/**
* drm_atomic_helper_disable_all - disable all currently active outputs
* @dev: DRM device
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 0719a235d6cc..0f6c530ab9cb 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -207,6 +207,11 @@ struct drm_minor;
int drm_atomic_debugfs_init(struct drm_minor *minor);
#endif
+int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
+ struct drm_plane_state *plane_state);
+int __drm_atomic_helper_set_config(struct drm_mode_set *set,
+ struct drm_atomic_state *state);
+
void drm_atomic_print_state(const struct drm_atomic_state *state);
/* drm_atomic_uapi.c */
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 58214be3bf3d..bf4e07141d81 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -117,12 +117,8 @@ int drm_atomic_helper_update_plane(struct drm_plane *plane,
struct drm_modeset_acquire_ctx *ctx);
int drm_atomic_helper_disable_plane(struct drm_plane *plane,
struct drm_modeset_acquire_ctx *ctx);
-int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
- struct drm_plane_state *plane_state);
int drm_atomic_helper_set_config(struct drm_mode_set *set,
struct drm_modeset_acquire_ctx *ctx);
-int __drm_atomic_helper_set_config(struct drm_mode_set *set,
- struct drm_atomic_state *state);
int drm_atomic_helper_disable_all(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 2/8] drm/fb-helper: Remove drm_fb_helper_crtc
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 1/8] drm/atomic: Move __drm_atomic_helper_disable_plane/set_config() Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 18:58 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 3/8] drm/fb-helper: Prepare to move out commit code Noralf Trønnes
` (7 subsequent siblings)
9 siblings, 1 reply; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx, Sam Ravnborg
struct drm_fb_helper_crtc is now just a wrapper around drm_mode_set so
use that directly instead and attach it as a modeset array onto
drm_client_dev. drm_fb_helper will use this array to store its modesets
which means it will always initialize a drm_client, but it will not
register the client (callbacks) unless it's the generic fbdev emulation.
Code will later be moved to drm_client, so add code there in a new file
drm_client_modeset.c with MIT license to match drm_fb_helper.c.
The modeset connector array size is hardcoded for the cloned case to avoid
having to pass in a value from the driver. A value of 8 is chosen to err
on the safe side. This means that the max connector argument for
drm_fb_helper_init() and drm_fb_helper_fbdev_setup() isn't used anymore,
a todo entry for this is added.
In pan_display_atomic() restore_fbdev_mode_force() is used instead of
restore_fbdev_mode_atomic() because that one will later become internal
to drm_client_modeset.
Locking order:
1. drm_fb_helper->lock
2. drm_master_internal_acquire
3. drm_client_dev->modeset_mutex
v6: Improve commit message (Sam Ravnborg)
v3:
- Use full drm_client_init/release for the modesets (Daniel Vetter)
- drm_client_for_each_modeset: use lockdep_assert_held (Daniel Vetter)
- Hook up to Documentation/gpu/drm-client.rst (Daniel Vetter)
v2:
- Add modesets array to drm_client (Daniel Vetter)
- Use a new file for the modeset code (Daniel Vetter)
- File has to be MIT licensed (Emmanuel Vadot)
- Add copyrights from drm_fb_helper.c
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
Documentation/gpu/drm-client.rst | 3 +
Documentation/gpu/todo.rst | 3 +
drivers/gpu/drm/Makefile | 2 +-
drivers/gpu/drm/drm_client.c | 10 +-
drivers/gpu/drm/drm_client_modeset.c | 104 +++++++++
drivers/gpu/drm/drm_fb_helper.c | 301 +++++++++++----------------
include/drm/drm_client.h | 30 +++
include/drm/drm_fb_helper.h | 8 -
8 files changed, 274 insertions(+), 187 deletions(-)
create mode 100644 drivers/gpu/drm/drm_client_modeset.c
diff --git a/Documentation/gpu/drm-client.rst b/Documentation/gpu/drm-client.rst
index 7e672063e7eb..58b5a1d1219d 100644
--- a/Documentation/gpu/drm-client.rst
+++ b/Documentation/gpu/drm-client.rst
@@ -10,3 +10,6 @@ Kernel clients
.. kernel-doc:: drivers/gpu/drm/drm_client.c
:export:
+
+.. kernel-doc:: drivers/gpu/drm/drm_client_modeset.c
+ :export:
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 66f05f4e469f..9d4038c50013 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -289,6 +289,9 @@ drm_fb_helper tasks
these igt tests need to be fixed: kms_fbcon_fbt@psr and
kms_fbcon_fbt@psr-suspend.
+- The max connector argument for drm_fb_helper_init() and
+ drm_fb_helper_fbdev_setup() isn't used anymore and can be removed.
+
Core refactorings
=================
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 4c3dc4268b65..9ead6436fb87 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -17,7 +17,7 @@ drm-y := drm_auth.o drm_cache.o \
drm_plane.o drm_color_mgmt.o drm_print.o \
drm_dumb_buffers.o drm_mode_config.o drm_vblank.o \
drm_syncobj.o drm_lease.o drm_writeback.o drm_client.o \
- drm_atomic_uapi.o
+ drm_client_modeset.o drm_atomic_uapi.o
drm-$(CONFIG_DRM_LEGACY) += drm_legacy_misc.o drm_bufs.o drm_context.o drm_dma.o drm_scatter.o drm_lock.o
drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index 5abcd83da6a6..77aa1cf09caa 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -27,7 +27,6 @@
* DOC: overview
*
* This library provides support for clients running in the kernel like fbdev and bootsplash.
- * Currently it's only partially implemented, just enough to support fbdev.
*
* GEM drivers which provide a GEM based dumb buffer with a virtual address are supported.
*/
@@ -92,14 +91,20 @@ int drm_client_init(struct drm_device *dev, struct drm_client_dev *client,
client->name = name;
client->funcs = funcs;
- ret = drm_client_open(client);
+ ret = drm_client_modeset_create(client);
if (ret)
goto err_put_module;
+ ret = drm_client_open(client);
+ if (ret)
+ goto err_free;
+
drm_dev_get(dev);
return 0;
+err_free:
+ drm_client_modeset_free(client);
err_put_module:
if (funcs)
module_put(funcs->owner);
@@ -148,6 +153,7 @@ void drm_client_release(struct drm_client_dev *client)
DRM_DEV_DEBUG_KMS(dev->dev, "%s\n", client->name);
+ drm_client_modeset_free(client);
drm_client_close(client);
drm_dev_put(dev);
if (client->funcs)
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
new file mode 100644
index 000000000000..66770ed3299e
--- /dev/null
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2018 Noralf Trønnes
+ * Copyright (c) 2006-2009 Red Hat Inc.
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ */
+
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+#include <drm/drm_client.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+
+int drm_client_modeset_create(struct drm_client_dev *client)
+{
+ struct drm_device *dev = client->dev;
+ unsigned int num_crtc = dev->mode_config.num_crtc;
+ unsigned int max_connector_count = 1;
+ struct drm_mode_set *modeset;
+ struct drm_crtc *crtc;
+ unsigned int i = 0;
+
+ /* Add terminating zero entry to enable index less iteration */
+ client->modesets = kcalloc(num_crtc + 1, sizeof(*client->modesets), GFP_KERNEL);
+ if (!client->modesets)
+ return -ENOMEM;
+
+ mutex_init(&client->modeset_mutex);
+
+ drm_for_each_crtc(crtc, dev)
+ client->modesets[i++].crtc = crtc;
+
+ /* Cloning is only supported in the single crtc case. */
+ if (num_crtc == 1)
+ max_connector_count = DRM_CLIENT_MAX_CLONED_CONNECTORS;
+
+ for (modeset = client->modesets; modeset->crtc; modeset++) {
+ modeset->connectors = kcalloc(max_connector_count,
+ sizeof(*modeset->connectors), GFP_KERNEL);
+ if (!modeset->connectors)
+ goto err_free;
+ }
+
+ return 0;
+
+err_free:
+ drm_client_modeset_free(client);
+
+ return -ENOMEM;
+}
+
+void drm_client_modeset_release(struct drm_client_dev *client)
+{
+ struct drm_mode_set *modeset;
+ unsigned int i;
+
+ drm_client_for_each_modeset(modeset, client) {
+ drm_mode_destroy(client->dev, modeset->mode);
+ modeset->mode = NULL;
+ modeset->fb = NULL;
+
+ for (i = 0; i < modeset->num_connectors; i++) {
+ drm_connector_put(modeset->connectors[i]);
+ modeset->connectors[i] = NULL;
+ }
+ modeset->num_connectors = 0;
+ }
+}
+/* TODO: Remove export when modeset code has been moved over */
+EXPORT_SYMBOL(drm_client_modeset_release);
+
+void drm_client_modeset_free(struct drm_client_dev *client)
+{
+ struct drm_mode_set *modeset;
+
+ mutex_lock(&client->modeset_mutex);
+
+ drm_client_modeset_release(client);
+
+ drm_client_for_each_modeset(modeset, client)
+ kfree(modeset->connectors);
+
+ mutex_unlock(&client->modeset_mutex);
+
+ mutex_destroy(&client->modeset_mutex);
+ kfree(client->modesets);
+}
+
+struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc)
+{
+ struct drm_mode_set *modeset;
+
+ drm_client_for_each_modeset(modeset, client)
+ if (modeset->crtc == crtc)
+ return modeset;
+
+ return NULL;
+}
+/* TODO: Remove export when modeset code has been moved over */
+EXPORT_SYMBOL(drm_client_find_modeset);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 302cf5f8bcce..dee16d97f3da 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -317,13 +317,11 @@ int drm_fb_helper_debug_enter(struct fb_info *info)
{
struct drm_fb_helper *helper = info->par;
const struct drm_crtc_helper_funcs *funcs;
- int i;
+ struct drm_mode_set *mode_set;
list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
- for (i = 0; i < helper->crtc_count; i++) {
- struct drm_mode_set *mode_set =
- &helper->crtc_info[i].mode_set;
-
+ mutex_lock(&helper->client.modeset_mutex);
+ drm_client_for_each_modeset(mode_set, &helper->client) {
if (!mode_set->crtc->enabled)
continue;
@@ -340,6 +338,7 @@ int drm_fb_helper_debug_enter(struct fb_info *info)
mode_set->y,
ENTER_ATOMIC_MODE_SET);
}
+ mutex_unlock(&helper->client.modeset_mutex);
}
return 0;
@@ -353,14 +352,14 @@ EXPORT_SYMBOL(drm_fb_helper_debug_enter);
int drm_fb_helper_debug_leave(struct fb_info *info)
{
struct drm_fb_helper *helper = info->par;
+ struct drm_client_dev *client = &helper->client;
struct drm_crtc *crtc;
const struct drm_crtc_helper_funcs *funcs;
+ struct drm_mode_set *mode_set;
struct drm_framebuffer *fb;
- int i;
-
- for (i = 0; i < helper->crtc_count; i++) {
- struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
+ mutex_lock(&client->modeset_mutex);
+ drm_client_for_each_modeset(mode_set, client) {
crtc = mode_set->crtc;
if (drm_drv_uses_atomic_modeset(crtc->dev))
continue;
@@ -383,6 +382,7 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
crtc->y, LEAVE_ATOMIC_MODE_SET);
}
+ mutex_unlock(&client->modeset_mutex);
return 0;
}
@@ -433,12 +433,14 @@ static bool drm_fb_helper_panel_rotation(struct drm_mode_set *modeset,
static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool active)
{
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
struct drm_plane_state *plane_state;
struct drm_plane *plane;
struct drm_atomic_state *state;
- int i, ret;
struct drm_modeset_acquire_ctx ctx;
+ struct drm_mode_set *mode_set;
+ int ret;
drm_modeset_acquire_init(&ctx, 0);
@@ -468,8 +470,7 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ
goto out_state;
}
- for (i = 0; i < fb_helper->crtc_count; i++) {
- struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+ drm_client_for_each_modeset(mode_set, client) {
struct drm_plane *primary = mode_set->crtc->primary;
unsigned int rotation;
@@ -517,9 +518,11 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ
static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)
{
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
+ struct drm_mode_set *mode_set;
struct drm_plane *plane;
- int i, ret = 0;
+ int ret = 0;
drm_modeset_lock_all(fb_helper->dev);
drm_for_each_plane(plane, dev) {
@@ -532,8 +535,7 @@ static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)
DRM_MODE_ROTATE_0);
}
- for (i = 0; i < fb_helper->crtc_count; i++) {
- struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+ drm_client_for_each_modeset(mode_set, client) {
struct drm_crtc *crtc = mode_set->crtc;
if (crtc->funcs->cursor_set2) {
@@ -559,11 +561,16 @@ static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)
static int restore_fbdev_mode_force(struct drm_fb_helper *fb_helper)
{
struct drm_device *dev = fb_helper->dev;
+ int ret;
+ mutex_lock(&fb_helper->client.modeset_mutex);
if (drm_drv_uses_atomic_modeset(dev))
- return restore_fbdev_mode_atomic(fb_helper, true);
+ ret = restore_fbdev_mode_atomic(fb_helper, true);
else
- return restore_fbdev_mode_legacy(fb_helper);
+ ret = restore_fbdev_mode_legacy(fb_helper);
+ mutex_unlock(&fb_helper->client.modeset_mutex);
+
+ return ret;
}
static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
@@ -682,15 +689,14 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
{
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
struct drm_connector *connector;
struct drm_mode_set *modeset;
- int i, j;
+ int j;
drm_modeset_lock_all(dev);
- for (i = 0; i < fb_helper->crtc_count; i++) {
- modeset = &fb_helper->crtc_info[i].mode_set;
-
+ drm_client_for_each_modeset(modeset, client) {
if (!modeset->crtc->enabled)
continue;
@@ -707,6 +713,7 @@ static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
{
struct drm_fb_helper *fb_helper = info->par;
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
/*
@@ -716,10 +723,12 @@ static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
if (!drm_master_internal_acquire(dev))
goto unlock;
+ mutex_lock(&client->modeset_mutex);
if (drm_drv_uses_atomic_modeset(dev))
restore_fbdev_mode_atomic(fb_helper, dpms_mode == DRM_MODE_DPMS_ON);
else
dpms_legacy(fb_helper, dpms_mode);
+ mutex_unlock(&client->modeset_mutex);
drm_master_internal_release(dev);
unlock:
@@ -762,43 +771,6 @@ int drm_fb_helper_blank(int blank, struct fb_info *info)
}
EXPORT_SYMBOL(drm_fb_helper_blank);
-static void drm_fb_helper_modeset_release(struct drm_fb_helper *helper,
- struct drm_mode_set *modeset)
-{
- int i;
-
- for (i = 0; i < modeset->num_connectors; i++) {
- drm_connector_put(modeset->connectors[i]);
- modeset->connectors[i] = NULL;
- }
- modeset->num_connectors = 0;
-
- drm_mode_destroy(helper->dev, modeset->mode);
- modeset->mode = NULL;
-
- /* FIXME should hold a ref? */
- modeset->fb = NULL;
-}
-
-static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper)
-{
- int i;
-
- for (i = 0; i < helper->connector_count; i++) {
- drm_connector_put(helper->connector_info[i]->connector);
- kfree(helper->connector_info[i]);
- }
- kfree(helper->connector_info);
-
- for (i = 0; i < helper->crtc_count; i++) {
- struct drm_mode_set *modeset = &helper->crtc_info[i].mode_set;
-
- drm_fb_helper_modeset_release(helper, modeset);
- kfree(modeset->connectors);
- }
- kfree(helper->crtc_info);
-}
-
static void drm_fb_helper_resume_worker(struct work_struct *work)
{
struct drm_fb_helper *helper = container_of(work, struct drm_fb_helper,
@@ -877,7 +849,7 @@ EXPORT_SYMBOL(drm_fb_helper_prepare);
* drm_fb_helper_init - initialize a &struct drm_fb_helper
* @dev: drm device
* @fb_helper: driver-allocated fbdev helper structure to initialize
- * @max_conn_count: max connector count
+ * @max_conn_count: max connector count (not used)
*
* This allocates the structures for the fbdev helper with the given limits.
* Note that this won't yet touch the hardware (through the driver interfaces)
@@ -893,53 +865,36 @@ int drm_fb_helper_init(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
int max_conn_count)
{
- struct drm_crtc *crtc;
- struct drm_mode_config *config = &dev->mode_config;
- int i;
+ int ret;
if (!drm_fbdev_emulation) {
dev->fb_helper = fb_helper;
return 0;
}
- if (!max_conn_count)
- return -EINVAL;
-
- fb_helper->crtc_info = kcalloc(config->num_crtc, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
- if (!fb_helper->crtc_info)
- return -ENOMEM;
-
- fb_helper->crtc_count = config->num_crtc;
- fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
- if (!fb_helper->connector_info) {
- kfree(fb_helper->crtc_info);
- return -ENOMEM;
+ /*
+ * If this is not the generic fbdev client, initialize a drm_client
+ * without callbacks so we can use the modesets.
+ */
+ if (!fb_helper->client.funcs) {
+ ret = drm_client_init(dev, &fb_helper->client, "drm_fb_helper", NULL);
+ if (ret)
+ return ret;
}
+
+ fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
+ if (!fb_helper->connector_info)
+ goto out_free;
+
fb_helper->connector_info_alloc_count = dev->mode_config.num_connector;
fb_helper->connector_count = 0;
- for (i = 0; i < fb_helper->crtc_count; i++) {
- fb_helper->crtc_info[i].mode_set.connectors =
- kcalloc(max_conn_count,
- sizeof(struct drm_connector *),
- GFP_KERNEL);
-
- if (!fb_helper->crtc_info[i].mode_set.connectors)
- goto out_free;
- fb_helper->crtc_info[i].mode_set.num_connectors = 0;
- }
-
- i = 0;
- drm_for_each_crtc(crtc, dev) {
- fb_helper->crtc_info[i].mode_set.crtc = crtc;
- i++;
- }
-
dev->fb_helper = fb_helper;
return 0;
out_free:
- drm_fb_helper_crtc_free(fb_helper);
+ drm_client_release(&fb_helper->client);
+
return -ENOMEM;
}
EXPORT_SYMBOL(drm_fb_helper_init);
@@ -1015,6 +970,7 @@ EXPORT_SYMBOL(drm_fb_helper_unregister_fbi);
void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
{
struct fb_info *info;
+ int i;
if (!fb_helper)
return;
@@ -1044,8 +1000,15 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
mutex_unlock(&kernel_fb_helper_lock);
mutex_destroy(&fb_helper->lock);
- drm_fb_helper_crtc_free(fb_helper);
+ if (!fb_helper->client.funcs)
+ drm_client_release(&fb_helper->client);
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ drm_connector_put(fb_helper->connector_info[i]->connector);
+ kfree(fb_helper->connector_info[i]);
+ }
+ kfree(fb_helper->connector_info);
}
EXPORT_SYMBOL(drm_fb_helper_fini);
@@ -1390,13 +1353,14 @@ static int setcmap_pseudo_palette(struct fb_cmap *cmap, struct fb_info *info)
static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
+ struct drm_mode_set *modeset;
struct drm_crtc *crtc;
u16 *r, *g, *b;
- int i, ret = 0;
+ int ret = 0;
drm_modeset_lock_all(fb_helper->dev);
- for (i = 0; i < fb_helper->crtc_count; i++) {
- crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ drm_client_for_each_modeset(modeset, &fb_helper->client) {
+ crtc = modeset->crtc;
if (!crtc->funcs->gamma_set || !crtc->gamma_size)
return -EINVAL;
@@ -1472,10 +1436,11 @@ static int setcmap_atomic(struct fb_cmap *cmap, struct fb_info *info)
struct drm_modeset_acquire_ctx ctx;
struct drm_crtc_state *crtc_state;
struct drm_atomic_state *state;
+ struct drm_mode_set *modeset;
struct drm_crtc *crtc;
u16 *r, *g, *b;
- int i, ret = 0;
bool replaced;
+ int ret = 0;
drm_modeset_acquire_init(&ctx, 0);
@@ -1487,8 +1452,8 @@ static int setcmap_atomic(struct fb_cmap *cmap, struct fb_info *info)
state->acquire_ctx = &ctx;
retry:
- for (i = 0; i < fb_helper->crtc_count; i++) {
- crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ drm_client_for_each_modeset(modeset, &fb_helper->client) {
+ crtc = modeset->crtc;
if (!gamma_lut)
gamma_lut = setcmap_new_gamma_lut(crtc, cmap);
@@ -1516,8 +1481,8 @@ static int setcmap_atomic(struct fb_cmap *cmap, struct fb_info *info)
if (ret)
goto out_state;
- for (i = 0; i < fb_helper->crtc_count; i++) {
- crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ drm_client_for_each_modeset(modeset, &fb_helper->client) {
+ crtc = modeset->crtc;
r = crtc->gamma_store;
g = r + crtc->gamma_size;
@@ -1567,12 +1532,14 @@ int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info)
goto unlock;
}
+ mutex_lock(&fb_helper->client.modeset_mutex);
if (info->fix.visual == FB_VISUAL_TRUECOLOR)
ret = setcmap_pseudo_palette(cmap, info);
else if (drm_drv_uses_atomic_modeset(fb_helper->dev))
ret = setcmap_atomic(cmap, info);
else
ret = setcmap_legacy(cmap, info);
+ mutex_unlock(&fb_helper->client.modeset_mutex);
drm_master_internal_release(dev);
unlock:
@@ -1596,7 +1563,6 @@ int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
- struct drm_mode_set *mode_set;
struct drm_crtc *crtc;
int ret = 0;
@@ -1624,8 +1590,7 @@ int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
* make. If we're not smart enough here, one should
* just consider switch the userspace to KMS.
*/
- mode_set = &fb_helper->crtc_info[0].mode_set;
- crtc = mode_set->crtc;
+ crtc = fb_helper->client.modesets[0].crtc;
/*
* Only wait for a vblank event if the CRTC is
@@ -1822,16 +1787,14 @@ EXPORT_SYMBOL(drm_fb_helper_set_par);
static void pan_set(struct drm_fb_helper *fb_helper, int x, int y)
{
- int i;
-
- for (i = 0; i < fb_helper->crtc_count; i++) {
- struct drm_mode_set *mode_set;
-
- mode_set = &fb_helper->crtc_info[i].mode_set;
+ struct drm_mode_set *mode_set;
+ mutex_lock(&fb_helper->client.modeset_mutex);
+ drm_client_for_each_modeset(mode_set, &fb_helper->client) {
mode_set->x = x;
mode_set->y = y;
}
+ mutex_unlock(&fb_helper->client.modeset_mutex);
}
static int pan_display_atomic(struct fb_var_screeninfo *var,
@@ -1842,7 +1805,7 @@ static int pan_display_atomic(struct fb_var_screeninfo *var,
pan_set(fb_helper, var->xoffset, var->yoffset);
- ret = restore_fbdev_mode_atomic(fb_helper, true);
+ ret = restore_fbdev_mode_force(fb_helper);
if (!ret) {
info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;
@@ -1856,14 +1819,13 @@ static int pan_display_legacy(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_mode_set *modeset;
int ret = 0;
- int i;
drm_modeset_lock_all(fb_helper->dev);
- for (i = 0; i < fb_helper->crtc_count; i++) {
- modeset = &fb_helper->crtc_info[i].mode_set;
-
+ mutex_lock(&client->modeset_mutex);
+ drm_client_for_each_modeset(modeset, client) {
modeset->x = var->xoffset;
modeset->y = var->yoffset;
@@ -1875,6 +1837,7 @@ static int pan_display_legacy(struct fb_var_screeninfo *var,
}
}
}
+ mutex_unlock(&client->modeset_mutex);
drm_modeset_unlock_all(fb_helper->dev);
return ret;
@@ -1921,10 +1884,12 @@ EXPORT_SYMBOL(drm_fb_helper_pan_display);
static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
int preferred_bpp)
{
+ struct drm_client_dev *client = &fb_helper->client;
int ret = 0;
int crtc_count = 0;
int i;
struct drm_fb_helper_surface_size sizes;
+ struct drm_mode_set *mode_set;
int best_depth = 0;
memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size));
@@ -1975,13 +1940,13 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
* supports RGBA5551 (16 bpp, depth 15) but not RGB565 (16 bpp, depth
* 16) we need to scale down the depth of the sizes we request.
*/
- for (i = 0; i < fb_helper->crtc_count; i++) {
- struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+ mutex_lock(&client->modeset_mutex);
+ drm_client_for_each_modeset(mode_set, client) {
struct drm_crtc *crtc = mode_set->crtc;
struct drm_plane *plane = crtc->primary;
int j;
- DRM_DEBUG("test CRTC %d primary plane\n", i);
+ DRM_DEBUG("test CRTC %u primary plane\n", drm_crtc_index(crtc));
for (j = 0; j < plane->format_count; j++) {
const struct drm_format_info *fmt;
@@ -2021,9 +1986,8 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
/* first up get a count of crtcs now in use and new min/maxes width/heights */
crtc_count = 0;
- for (i = 0; i < fb_helper->crtc_count; i++) {
+ drm_client_for_each_modeset(mode_set, client) {
struct drm_display_mode *desired_mode;
- struct drm_mode_set *mode_set;
int x, y, j;
/* in case of tile group, are we the last tile vert or horiz?
* If no tile group you are always the last one both vertically
@@ -2031,7 +1995,6 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
*/
bool lastv = true, lasth = true;
- mode_set = &fb_helper->crtc_info[i].mode_set;
desired_mode = mode_set->mode;
if (!desired_mode)
@@ -2061,6 +2024,7 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
if (lastv)
sizes.fb_height = min_t(u32, desired_mode->vdisplay + y, sizes.fb_height);
}
+ mutex_unlock(&client->modeset_mutex);
if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {
DRM_INFO("Cannot find any crtc or sizes\n");
@@ -2292,7 +2256,7 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
struct drm_display_mode *dmt_mode, *mode;
/* only contemplate cloning in the single crtc case */
- if (fb_helper->crtc_count > 1)
+ if (fb_helper->dev->mode_config.num_crtc > 1)
return false;
count = 0;
@@ -2481,15 +2445,17 @@ static bool connector_has_possible_crtc(struct drm_connector *connector,
}
static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
- struct drm_fb_helper_crtc **best_crtcs,
+ struct drm_crtc **best_crtcs,
struct drm_display_mode **modes,
int n, int width, int height)
{
- int c, o;
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_connector *connector;
int my_score, best_score, score;
- struct drm_fb_helper_crtc **crtcs, *crtc;
+ struct drm_crtc **crtcs, *crtc;
+ struct drm_mode_set *modeset;
struct drm_fb_helper_connector *fb_helper_conn;
+ int o;
if (n == fb_helper->connector_count)
return 0;
@@ -2502,8 +2468,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
if (modes[n] == NULL)
return best_score;
- crtcs = kcalloc(fb_helper->connector_count,
- sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ crtcs = kcalloc(fb_helper->connector_count, sizeof(*crtcs), GFP_KERNEL);
if (!crtcs)
return best_score;
@@ -2519,11 +2484,10 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
* select a crtc for this connector and then attempt to configure
* remaining connectors
*/
- for (c = 0; c < fb_helper->crtc_count; c++) {
- crtc = &fb_helper->crtc_info[c];
+ drm_client_for_each_modeset(modeset, client) {
+ crtc = modeset->crtc;
- if (!connector_has_possible_crtc(connector,
- crtc->mode_set.crtc))
+ if (!connector_has_possible_crtc(connector, crtc))
continue;
for (o = 0; o < n; o++)
@@ -2532,7 +2496,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
if (o < n) {
/* ignore cloning unless only a single crtc */
- if (fb_helper->crtc_count > 1)
+ if (fb_helper->dev->mode_config.num_crtc > 1)
continue;
if (!drm_mode_equal(modes[o], modes[n]))
@@ -2540,14 +2504,13 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
}
crtcs[n] = crtc;
- memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *));
+ memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,
width, height);
if (score > best_score) {
best_score = score;
memcpy(best_crtcs, crtcs,
- fb_helper->connector_count *
- sizeof(struct drm_fb_helper_crtc *));
+ fb_helper->connector_count * sizeof(*crtcs));
}
}
@@ -2555,21 +2518,9 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
return best_score;
}
-static struct drm_fb_helper_crtc *
-drm_fb_helper_crtc(struct drm_fb_helper *fb_helper, struct drm_crtc *crtc)
-{
- int i;
-
- for (i = 0; i < fb_helper->crtc_count; i++)
- if (fb_helper->crtc_info[i].mode_set.crtc == crtc)
- return &fb_helper->crtc_info[i];
-
- return NULL;
-}
-
/* Try to read the BIOS display configuration and use it for the initial config */
static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
- struct drm_fb_helper_crtc **crtcs,
+ struct drm_crtc **crtcs,
struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
bool *enabled, int width, int height)
@@ -2605,7 +2556,7 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_connector *fb_conn;
struct drm_connector *connector;
struct drm_encoder *encoder;
- struct drm_fb_helper_crtc *new_crtc;
+ struct drm_crtc *new_crtc;
fb_conn = fb_helper->connector_info[i];
connector = fb_conn->connector;
@@ -2647,7 +2598,7 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
num_connectors_enabled++;
- new_crtc = drm_fb_helper_crtc(fb_helper, connector->state->crtc);
+ new_crtc = connector->state->crtc;
/*
* Make sure we're not trying to drive multiple connectors
@@ -2747,10 +2698,11 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
u32 width, u32 height)
{
+ struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
- struct drm_fb_helper_crtc **crtcs;
struct drm_display_mode **modes;
struct drm_fb_offset *offsets;
+ struct drm_crtc **crtcs;
bool *enabled;
int i;
@@ -2758,8 +2710,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
/* prevent concurrent modification of connector_count by hotplug */
lockdep_assert_held(&fb_helper->lock);
- crtcs = kcalloc(fb_helper->connector_count,
- sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ crtcs = kcalloc(fb_helper->connector_count, sizeof(*crtcs), GFP_KERNEL);
modes = kcalloc(fb_helper->connector_count,
sizeof(struct drm_display_mode *), GFP_KERNEL);
offsets = kcalloc(fb_helper->connector_count,
@@ -2771,6 +2722,8 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
goto out;
}
+ mutex_lock(&client->modeset_mutex);
+
mutex_lock(&fb_helper->dev->mode_config.mutex);
if (drm_fb_helper_probe_connector_modes(fb_helper, width, height) == 0)
DRM_DEBUG_KMS("No connectors reported connected with modes\n");
@@ -2795,24 +2748,24 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
}
mutex_unlock(&fb_helper->dev->mode_config.mutex);
- /* need to set the modesets up here for use later */
- /* fill out the connector<->crtc mappings into the modesets */
- for (i = 0; i < fb_helper->crtc_count; i++)
- drm_fb_helper_modeset_release(fb_helper,
- &fb_helper->crtc_info[i].mode_set);
+ drm_client_modeset_release(client);
drm_fb_helper_for_each_connector(fb_helper, i) {
struct drm_display_mode *mode = modes[i];
- struct drm_fb_helper_crtc *fb_crtc = crtcs[i];
+ struct drm_crtc *crtc = crtcs[i];
struct drm_fb_offset *offset = &offsets[i];
- if (mode && fb_crtc) {
- struct drm_mode_set *modeset = &fb_crtc->mode_set;
+ if (mode && crtc) {
+ struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
struct drm_connector *connector =
fb_helper->connector_info[i]->connector;
DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
- mode->name, fb_crtc->mode_set.crtc->base.id, offset->x, offset->y);
+ mode->name, crtc->base.id, offset->x, offset->y);
+
+ if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
+ (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1)))
+ break;
modeset->mode = drm_mode_duplicate(dev, mode);
drm_connector_get(connector);
@@ -2821,6 +2774,8 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
modeset->y = offset->y;
}
}
+
+ mutex_unlock(&client->modeset_mutex);
out:
kfree(crtcs);
kfree(modes);
@@ -2837,13 +2792,14 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
*/
static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
{
+ struct drm_client_dev *client = &fb_helper->client;
struct fb_info *info = fb_helper->fbdev;
unsigned int rotation, sw_rotations = 0;
+ struct drm_mode_set *modeset;
int i;
- for (i = 0; i < fb_helper->crtc_count; i++) {
- struct drm_mode_set *modeset = &fb_helper->crtc_info[i].mode_set;
-
+ mutex_lock(&client->modeset_mutex);
+ drm_client_for_each_modeset(modeset, client) {
if (!modeset->num_connectors)
continue;
@@ -2855,6 +2811,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
else
sw_rotations |= rotation;
}
+ mutex_unlock(&client->modeset_mutex);
mutex_lock(&fb_helper->dev->mode_config.mutex);
drm_fb_helper_for_each_connector(fb_helper, i) {
@@ -3070,8 +3027,7 @@ EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
* @funcs: fbdev helper functions
* @preferred_bpp: Preferred bits per pixel for the device.
* @dev->mode_config.preferred_depth is used if this is zero.
- * @max_conn_count: Maximum number of connectors.
- * @dev->mode_config.num_connector is used if this is zero.
+ * @max_conn_count: Maximum number of connectors (not used)
*
* This function sets up fbdev emulation and registers fbdev for access by
* userspace. If all connectors are disconnected, setup is deferred to the next
@@ -3099,16 +3055,9 @@ int drm_fb_helper_fbdev_setup(struct drm_device *dev,
if (!preferred_bpp)
preferred_bpp = 32;
- if (!max_conn_count)
- max_conn_count = dev->mode_config.num_connector;
- if (!max_conn_count) {
- DRM_DEV_ERROR(dev->dev, "fbdev: No connectors\n");
- return -EINVAL;
- }
-
drm_fb_helper_prepare(dev, fb_helper, funcs);
- ret = drm_fb_helper_init(dev, fb_helper, max_conn_count);
+ ret = drm_fb_helper_init(dev, fb_helper, 0);
if (ret < 0) {
DRM_DEV_ERROR(dev->dev, "fbdev: Failed to initialize (ret=%d)\n", ret);
return ret;
@@ -3421,7 +3370,7 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client)
drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs);
- ret = drm_fb_helper_init(dev, fb_helper, dev->mode_config.num_connector);
+ ret = drm_fb_helper_init(dev, fb_helper, 0);
if (ret)
goto err;
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index 268b2cf0052a..87be9aeb1fe0 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -3,8 +3,12 @@
#ifndef _DRM_CLIENT_H_
#define _DRM_CLIENT_H_
+#include <linux/lockdep.h>
+#include <linux/mutex.h>
#include <linux/types.h>
+#include <drm/drm_crtc.h>
+
struct drm_client_dev;
struct drm_device;
struct drm_file;
@@ -13,6 +17,8 @@ struct drm_gem_object;
struct drm_minor;
struct module;
+#define DRM_CLIENT_MAX_CLONED_CONNECTORS 8
+
/**
* struct drm_client_funcs - DRM client callbacks
*/
@@ -85,6 +91,16 @@ struct drm_client_dev {
* @file: DRM file
*/
struct drm_file *file;
+
+ /**
+ * @modeset_mutex: Protects @modesets.
+ */
+ struct mutex modeset_mutex;
+
+ /**
+ * @modesets: CRTC configurations
+ */
+ struct drm_mode_set *modesets;
};
int drm_client_init(struct drm_device *dev, struct drm_client_dev *client,
@@ -135,6 +151,20 @@ struct drm_client_buffer *
drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format);
void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
+int drm_client_modeset_create(struct drm_client_dev *client);
+void drm_client_modeset_free(struct drm_client_dev *client);
+void drm_client_modeset_release(struct drm_client_dev *client);
+struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc);
+
+/**
+ * drm_client_for_each_modeset() - Iterate over client modesets
+ * @modeset: &drm_mode_set loop cursor
+ * @client: DRM client
+ */
+#define drm_client_for_each_modeset(modeset, client) \
+ for (({ lockdep_assert_held(&(client)->modeset_mutex); }), \
+ modeset = (client)->modesets; modeset->crtc; modeset++)
+
int drm_client_debugfs_init(struct drm_minor *minor);
#endif
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 2af1c6d3e147..6b334f4d8a22 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -47,10 +47,6 @@ struct drm_fb_offset {
int x, y;
};
-struct drm_fb_helper_crtc {
- struct drm_mode_set mode_set;
-};
-
/**
* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
* @fb_width: fbdev width
@@ -109,8 +105,6 @@ struct drm_fb_helper_connector {
* struct drm_fb_helper - main structure to emulate fbdev on top of KMS
* @fb: Scanout framebuffer object
* @dev: DRM device
- * @crtc_count: number of possible CRTCs
- * @crtc_info: per-CRTC helper state (mode, x/y offset, etc)
* @connector_count: number of connected connectors
* @connector_info_alloc_count: size of connector_info
* @funcs: driver callbacks for fb helper
@@ -144,8 +138,6 @@ struct drm_fb_helper {
struct drm_framebuffer *fb;
struct drm_device *dev;
- int crtc_count;
- struct drm_fb_helper_crtc *crtc_info;
int connector_count;
int connector_info_alloc_count;
/**
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* Re: [PATCH v6 2/8] drm/fb-helper: Remove drm_fb_helper_crtc
2019-05-23 13:44 ` [PATCH v6 2/8] drm/fb-helper: Remove drm_fb_helper_crtc Noralf Trønnes
@ 2019-05-23 18:58 ` Noralf Trønnes
0 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 18:58 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx, Sam Ravnborg
Den 23.05.2019 15.44, skrev Noralf Trønnes:
> struct drm_fb_helper_crtc is now just a wrapper around drm_mode_set so
> use that directly instead and attach it as a modeset array onto
> drm_client_dev. drm_fb_helper will use this array to store its modesets
> which means it will always initialize a drm_client, but it will not
> register the client (callbacks) unless it's the generic fbdev emulation.
>
> Code will later be moved to drm_client, so add code there in a new file
> drm_client_modeset.c with MIT license to match drm_fb_helper.c.
>
> The modeset connector array size is hardcoded for the cloned case to avoid
> having to pass in a value from the driver. A value of 8 is chosen to err
> on the safe side. This means that the max connector argument for
> drm_fb_helper_init() and drm_fb_helper_fbdev_setup() isn't used anymore,
> a todo entry for this is added.
>
> In pan_display_atomic() restore_fbdev_mode_force() is used instead of
> restore_fbdev_mode_atomic() because that one will later become internal
> to drm_client_modeset.
>
> Locking order:
> 1. drm_fb_helper->lock
> 2. drm_master_internal_acquire
> 3. drm_client_dev->modeset_mutex
>
> v6: Improve commit message (Sam Ravnborg)
>
> v3:
> - Use full drm_client_init/release for the modesets (Daniel Vetter)
> - drm_client_for_each_modeset: use lockdep_assert_held (Daniel Vetter)
> - Hook up to Documentation/gpu/drm-client.rst (Daniel Vetter)
>
> v2:
> - Add modesets array to drm_client (Daniel Vetter)
> - Use a new file for the modeset code (Daniel Vetter)
> - File has to be MIT licensed (Emmanuel Vadot)
> - Add copyrights from drm_fb_helper.c
>
> Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index 4c3dc4268b65..9ead6436fb87 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -17,7 +17,7 @@ drm-y := drm_auth.o drm_cache.o \
> drm_plane.o drm_color_mgmt.o drm_print.o \
> drm_dumb_buffers.o drm_mode_config.o drm_vblank.o \
> drm_syncobj.o drm_lease.o drm_writeback.o drm_client.o \
> - drm_atomic_uapi.o
> + drm_client_modeset.o drm_atomic_uapi.o
The Intel CI informed me that this didn't apply on drm-tip.
There's commit 6498bf5800a3 ("drm: revocation check at drm subsystem")
coming in from drm-intel-next that conflicts. It's not in drm-next yet.
I won't be able to respin this for a week or so, so maybe by that time
it has even been backmerged into drm-misc-next.
Noralf.
>
> drm-$(CONFIG_DRM_LEGACY) += drm_legacy_misc.o drm_bufs.o drm_context.o drm_dma.o drm_scatter.o drm_lock.o
> drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH v6 3/8] drm/fb-helper: Prepare to move out commit code
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 1/8] drm/atomic: Move __drm_atomic_helper_disable_plane/set_config() Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 2/8] drm/fb-helper: Remove drm_fb_helper_crtc Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 4/8] drm/fb-helper: Move " Noralf Trønnes
` (6 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx, Sam Ravnborg
This makes the necessary changes so the commit code can be moved out to
drm_client as-is in the next patch. It's split up to ease review.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
drivers/gpu/drm/drm_fb_helper.c | 122 +++++++++++++++++++++-----------
1 file changed, 81 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index dee16d97f3da..d530fb315e52 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -388,9 +388,20 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
}
EXPORT_SYMBOL(drm_fb_helper_debug_leave);
-/* Check if the plane can hw rotate to match panel orientation */
-static bool drm_fb_helper_panel_rotation(struct drm_mode_set *modeset,
- unsigned int *rotation)
+/**
+ * drm_client_panel_rotation() - Check panel orientation
+ * @modeset: DRM modeset
+ * @rotation: Returned rotation value
+ *
+ * This function checks if the primary plane in @modeset can hw rotate to match
+ * the panel orientation on its connector.
+ *
+ * Note: Currently only 0 and 180 degrees are supported.
+ *
+ * Return:
+ * True if the plane can do the rotation, false otherwise.
+ */
+bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
{
struct drm_connector *connector = modeset->connectors[0];
struct drm_plane *plane = modeset->crtc->primary;
@@ -431,10 +442,9 @@ static bool drm_fb_helper_panel_rotation(struct drm_mode_set *modeset,
return true;
}
-static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool active)
+static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
{
- struct drm_client_dev *client = &fb_helper->client;
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
struct drm_plane_state *plane_state;
struct drm_plane *plane;
struct drm_atomic_state *state;
@@ -474,7 +484,7 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ
struct drm_plane *primary = mode_set->crtc->primary;
unsigned int rotation;
- if (drm_fb_helper_panel_rotation(mode_set, &rotation)) {
+ if (drm_client_panel_rotation(mode_set, &rotation)) {
/* Cannot fail as we've already gotten the plane state above */
plane_state = drm_atomic_get_new_plane_state(state, primary);
plane_state->rotation = rotation;
@@ -516,15 +526,14 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ
goto retry;
}
-static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)
+static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
{
- struct drm_client_dev *client = &fb_helper->client;
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
struct drm_mode_set *mode_set;
struct drm_plane *plane;
int ret = 0;
- drm_modeset_lock_all(fb_helper->dev);
+ drm_modeset_lock_all(dev);
drm_for_each_plane(plane, dev) {
if (plane->type != DRM_PLANE_TYPE_PRIMARY)
drm_plane_force_disable(plane);
@@ -553,35 +562,53 @@ static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)
goto out;
}
out:
- drm_modeset_unlock_all(fb_helper->dev);
+ drm_modeset_unlock_all(dev);
return ret;
}
-static int restore_fbdev_mode_force(struct drm_fb_helper *fb_helper)
+/**
+ * drm_client_modeset_commit_force() - Force commit CRTC configuration
+ * @client: DRM client
+ *
+ * Commit modeset configuration to crtcs without checking if there is a DRM master.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_commit_force(struct drm_client_dev *client)
{
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
int ret;
- mutex_lock(&fb_helper->client.modeset_mutex);
+ mutex_lock(&client->modeset_mutex);
if (drm_drv_uses_atomic_modeset(dev))
- ret = restore_fbdev_mode_atomic(fb_helper, true);
+ ret = drm_client_modeset_commit_atomic(client, true);
else
- ret = restore_fbdev_mode_legacy(fb_helper);
- mutex_unlock(&fb_helper->client.modeset_mutex);
+ ret = drm_client_modeset_commit_legacy(client);
+ mutex_unlock(&client->modeset_mutex);
return ret;
}
-static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
+/**
+ * drm_client_modeset_commit() - Commit CRTC configuration
+ * @client: DRM client
+ *
+ * Commit modeset configuration to crtcs.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_commit(struct drm_client_dev *client)
{
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
int ret;
if (!drm_master_internal_acquire(dev))
return -EBUSY;
- ret = restore_fbdev_mode_force(fb_helper);
+ ret = drm_client_modeset_commit_force(client);
drm_master_internal_release(dev);
@@ -621,7 +648,7 @@ int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
* So first these tests need to be fixed so they drop master or don't
* have an fd open.
*/
- ret = restore_fbdev_mode_force(fb_helper);
+ ret = drm_client_modeset_commit_force(&fb_helper->client);
do_delayed = fb_helper->delayed_hotplug;
if (do_delayed)
@@ -655,7 +682,7 @@ static bool drm_fb_helper_force_kernel_mode(void)
continue;
mutex_lock(&helper->lock);
- ret = restore_fbdev_mode_force(helper);
+ ret = drm_client_modeset_commit_force(&helper->client);
if (ret)
error = true;
mutex_unlock(&helper->lock);
@@ -687,10 +714,9 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
#endif
-static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
+static void drm_client_modeset_dpms_legacy(struct drm_client_dev *client, int dpms_mode)
{
- struct drm_client_dev *client = &fb_helper->client;
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
struct drm_connector *connector;
struct drm_mode_set *modeset;
int j;
@@ -710,28 +736,42 @@ static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
drm_modeset_unlock_all(dev);
}
-static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
+/**
+ * drm_client_modeset_dpms() - Set DPMS mode
+ * @client: DRM client
+ * @mode: DPMS mode
+ *
+ * Note: For atomic drivers @mode is reduced to on/off.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
{
- struct drm_fb_helper *fb_helper = info->par;
- struct drm_client_dev *client = &fb_helper->client;
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
+ int ret = 0;
- /*
- * For each CRTC in this fb, turn the connectors on/off.
- */
- mutex_lock(&fb_helper->lock);
if (!drm_master_internal_acquire(dev))
- goto unlock;
+ return -EBUSY;
mutex_lock(&client->modeset_mutex);
if (drm_drv_uses_atomic_modeset(dev))
- restore_fbdev_mode_atomic(fb_helper, dpms_mode == DRM_MODE_DPMS_ON);
+ ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
else
- dpms_legacy(fb_helper, dpms_mode);
+ drm_client_modeset_dpms_legacy(client, mode);
mutex_unlock(&client->modeset_mutex);
drm_master_internal_release(dev);
-unlock:
+
+ return ret;
+}
+
+static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+
+ mutex_lock(&fb_helper->lock);
+ drm_client_modeset_dpms(&fb_helper->client, dpms_mode);
mutex_unlock(&fb_helper->lock);
}
@@ -1805,7 +1845,7 @@ static int pan_display_atomic(struct fb_var_screeninfo *var,
pan_set(fb_helper, var->xoffset, var->yoffset);
- ret = restore_fbdev_mode_force(fb_helper);
+ ret = drm_client_modeset_commit_force(&fb_helper->client);
if (!ret) {
info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;
@@ -2031,7 +2071,7 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
/* First time: disable all crtc's.. */
if (!fb_helper->deferred_setup)
- restore_fbdev_mode(fb_helper);
+ drm_client_modeset_commit(client);
return -EAGAIN;
}
@@ -2805,7 +2845,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
modeset->fb = fb_helper->fb;
- if (drm_fb_helper_panel_rotation(modeset, &rotation))
+ if (drm_client_panel_rotation(modeset, &rotation))
/* Rotating in hardware, fbcon should not rotate */
sw_rotations |= DRM_MODE_ROTATE_0;
else
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 4/8] drm/fb-helper: Move out commit code
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (2 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 3/8] drm/fb-helper: Prepare to move out commit code Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 5/8] drm/fb-helper: Remove drm_fb_helper_connector Noralf Trønnes
` (5 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx, Noralf Trønnes, Sam Ravnborg
Move the modeset commit code to drm_client_modeset.
No changes except exporting API.
v2: Move to drm_client_modeset.c instead of drm_client.c
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
drivers/gpu/drm/drm_client_modeset.c | 287 +++++++++++++++++++++++++++
drivers/gpu/drm/drm_fb_helper.c | 282 --------------------------
include/drm/drm_client.h | 4 +
3 files changed, 291 insertions(+), 282 deletions(-)
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index 66770ed3299e..b2aedec65637 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -11,9 +11,14 @@
#include <linux/mutex.h>
#include <linux/slab.h>
+#include <drm/drm_atomic.h>
#include <drm/drm_client.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
+
+#include "drm_crtc_internal.h"
+#include "drm_internal.h"
int drm_client_modeset_create(struct drm_client_dev *client)
{
@@ -102,3 +107,285 @@ struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, stru
}
/* TODO: Remove export when modeset code has been moved over */
EXPORT_SYMBOL(drm_client_find_modeset);
+
+/**
+ * drm_client_panel_rotation() - Check panel orientation
+ * @modeset: DRM modeset
+ * @rotation: Returned rotation value
+ *
+ * This function checks if the primary plane in @modeset can hw rotate to match
+ * the panel orientation on its connector.
+ *
+ * Note: Currently only 0 and 180 degrees are supported.
+ *
+ * Return:
+ * True if the plane can do the rotation, false otherwise.
+ */
+bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
+{
+ struct drm_connector *connector = modeset->connectors[0];
+ struct drm_plane *plane = modeset->crtc->primary;
+ u64 valid_mask = 0;
+ unsigned int i;
+
+ if (!modeset->num_connectors)
+ return false;
+
+ switch (connector->display_info.panel_orientation) {
+ case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP:
+ *rotation = DRM_MODE_ROTATE_180;
+ break;
+ case DRM_MODE_PANEL_ORIENTATION_LEFT_UP:
+ *rotation = DRM_MODE_ROTATE_90;
+ break;
+ case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP:
+ *rotation = DRM_MODE_ROTATE_270;
+ break;
+ default:
+ *rotation = DRM_MODE_ROTATE_0;
+ }
+
+ /*
+ * TODO: support 90 / 270 degree hardware rotation,
+ * depending on the hardware this may require the framebuffer
+ * to be in a specific tiling format.
+ */
+ if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property)
+ return false;
+
+ for (i = 0; i < plane->rotation_property->num_values; i++)
+ valid_mask |= (1ULL << plane->rotation_property->values[i]);
+
+ if (!(*rotation & valid_mask))
+ return false;
+
+ return true;
+}
+
+static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
+{
+ struct drm_device *dev = client->dev;
+ struct drm_plane_state *plane_state;
+ struct drm_plane *plane;
+ struct drm_atomic_state *state;
+ struct drm_modeset_acquire_ctx ctx;
+ struct drm_mode_set *mode_set;
+ int ret;
+
+ drm_modeset_acquire_init(&ctx, 0);
+
+ state = drm_atomic_state_alloc(dev);
+ if (!state) {
+ ret = -ENOMEM;
+ goto out_ctx;
+ }
+
+ state->acquire_ctx = &ctx;
+retry:
+ drm_for_each_plane(plane, dev) {
+ plane_state = drm_atomic_get_plane_state(state, plane);
+ if (IS_ERR(plane_state)) {
+ ret = PTR_ERR(plane_state);
+ goto out_state;
+ }
+
+ plane_state->rotation = DRM_MODE_ROTATE_0;
+
+ /* disable non-primary: */
+ if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+ continue;
+
+ ret = __drm_atomic_helper_disable_plane(plane, plane_state);
+ if (ret != 0)
+ goto out_state;
+ }
+
+ drm_client_for_each_modeset(mode_set, client) {
+ struct drm_plane *primary = mode_set->crtc->primary;
+ unsigned int rotation;
+
+ if (drm_client_panel_rotation(mode_set, &rotation)) {
+ /* Cannot fail as we've already gotten the plane state above */
+ plane_state = drm_atomic_get_new_plane_state(state, primary);
+ plane_state->rotation = rotation;
+ }
+
+ ret = __drm_atomic_helper_set_config(mode_set, state);
+ if (ret != 0)
+ goto out_state;
+
+ /*
+ * __drm_atomic_helper_set_config() sets active when a
+ * mode is set, unconditionally clear it if we force DPMS off
+ */
+ if (!active) {
+ struct drm_crtc *crtc = mode_set->crtc;
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+
+ crtc_state->active = false;
+ }
+ }
+
+ ret = drm_atomic_commit(state);
+
+out_state:
+ if (ret == -EDEADLK)
+ goto backoff;
+
+ drm_atomic_state_put(state);
+out_ctx:
+ drm_modeset_drop_locks(&ctx);
+ drm_modeset_acquire_fini(&ctx);
+
+ return ret;
+
+backoff:
+ drm_atomic_state_clear(state);
+ drm_modeset_backoff(&ctx);
+
+ goto retry;
+}
+
+static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
+{
+ struct drm_device *dev = client->dev;
+ struct drm_mode_set *mode_set;
+ struct drm_plane *plane;
+ int ret = 0;
+
+ drm_modeset_lock_all(dev);
+ drm_for_each_plane(plane, dev) {
+ if (plane->type != DRM_PLANE_TYPE_PRIMARY)
+ drm_plane_force_disable(plane);
+
+ if (plane->rotation_property)
+ drm_mode_plane_set_obj_prop(plane,
+ plane->rotation_property,
+ DRM_MODE_ROTATE_0);
+ }
+
+ drm_client_for_each_modeset(mode_set, client) {
+ struct drm_crtc *crtc = mode_set->crtc;
+
+ if (crtc->funcs->cursor_set2) {
+ ret = crtc->funcs->cursor_set2(crtc, NULL, 0, 0, 0, 0, 0);
+ if (ret)
+ goto out;
+ } else if (crtc->funcs->cursor_set) {
+ ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0);
+ if (ret)
+ goto out;
+ }
+
+ ret = drm_mode_set_config_internal(mode_set);
+ if (ret)
+ goto out;
+ }
+out:
+ drm_modeset_unlock_all(dev);
+
+ return ret;
+}
+
+/**
+ * drm_client_modeset_commit_force() - Force commit CRTC configuration
+ * @client: DRM client
+ *
+ * Commit modeset configuration to crtcs without checking if there is a DRM master.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_commit_force(struct drm_client_dev *client)
+{
+ struct drm_device *dev = client->dev;
+ int ret;
+
+ mutex_lock(&client->modeset_mutex);
+ if (drm_drv_uses_atomic_modeset(dev))
+ ret = drm_client_modeset_commit_atomic(client, true);
+ else
+ ret = drm_client_modeset_commit_legacy(client);
+ mutex_unlock(&client->modeset_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_client_modeset_commit_force);
+
+/**
+ * drm_client_modeset_commit() - Commit CRTC configuration
+ * @client: DRM client
+ *
+ * Commit modeset configuration to crtcs.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_commit(struct drm_client_dev *client)
+{
+ struct drm_device *dev = client->dev;
+ int ret;
+
+ if (!drm_master_internal_acquire(dev))
+ return -EBUSY;
+
+ ret = drm_client_modeset_commit_force(client);
+
+ drm_master_internal_release(dev);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_client_modeset_commit);
+
+static void drm_client_modeset_dpms_legacy(struct drm_client_dev *client, int dpms_mode)
+{
+ struct drm_device *dev = client->dev;
+ struct drm_connector *connector;
+ struct drm_mode_set *modeset;
+ int j;
+
+ drm_modeset_lock_all(dev);
+ drm_client_for_each_modeset(modeset, client) {
+ if (!modeset->crtc->enabled)
+ continue;
+
+ for (j = 0; j < modeset->num_connectors; j++) {
+ connector = modeset->connectors[j];
+ connector->funcs->dpms(connector, dpms_mode);
+ drm_object_property_set_value(&connector->base,
+ dev->mode_config.dpms_property, dpms_mode);
+ }
+ }
+ drm_modeset_unlock_all(dev);
+}
+
+/**
+ * drm_client_modeset_dpms() - Set DPMS mode
+ * @client: DRM client
+ * @mode: DPMS mode
+ *
+ * Note: For atomic drivers @mode is reduced to on/off.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
+{
+ struct drm_device *dev = client->dev;
+ int ret = 0;
+
+ if (!drm_master_internal_acquire(dev))
+ return -EBUSY;
+
+ mutex_lock(&client->modeset_mutex);
+ if (drm_drv_uses_atomic_modeset(dev))
+ ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
+ else
+ drm_client_modeset_dpms_legacy(client, mode);
+ mutex_unlock(&client->modeset_mutex);
+
+ drm_master_internal_release(dev);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_client_modeset_dpms);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index d530fb315e52..e9cfccda6533 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -40,10 +40,7 @@
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_helper.h>
-#include "drm_crtc_internal.h"
-#include "drm_crtc_helper_internal.h"
#include "drm_internal.h"
static bool drm_fbdev_emulation = true;
@@ -388,233 +385,6 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
}
EXPORT_SYMBOL(drm_fb_helper_debug_leave);
-/**
- * drm_client_panel_rotation() - Check panel orientation
- * @modeset: DRM modeset
- * @rotation: Returned rotation value
- *
- * This function checks if the primary plane in @modeset can hw rotate to match
- * the panel orientation on its connector.
- *
- * Note: Currently only 0 and 180 degrees are supported.
- *
- * Return:
- * True if the plane can do the rotation, false otherwise.
- */
-bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
-{
- struct drm_connector *connector = modeset->connectors[0];
- struct drm_plane *plane = modeset->crtc->primary;
- u64 valid_mask = 0;
- unsigned int i;
-
- if (!modeset->num_connectors)
- return false;
-
- switch (connector->display_info.panel_orientation) {
- case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP:
- *rotation = DRM_MODE_ROTATE_180;
- break;
- case DRM_MODE_PANEL_ORIENTATION_LEFT_UP:
- *rotation = DRM_MODE_ROTATE_90;
- break;
- case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP:
- *rotation = DRM_MODE_ROTATE_270;
- break;
- default:
- *rotation = DRM_MODE_ROTATE_0;
- }
-
- /*
- * TODO: support 90 / 270 degree hardware rotation,
- * depending on the hardware this may require the framebuffer
- * to be in a specific tiling format.
- */
- if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property)
- return false;
-
- for (i = 0; i < plane->rotation_property->num_values; i++)
- valid_mask |= (1ULL << plane->rotation_property->values[i]);
-
- if (!(*rotation & valid_mask))
- return false;
-
- return true;
-}
-
-static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
-{
- struct drm_device *dev = client->dev;
- struct drm_plane_state *plane_state;
- struct drm_plane *plane;
- struct drm_atomic_state *state;
- struct drm_modeset_acquire_ctx ctx;
- struct drm_mode_set *mode_set;
- int ret;
-
- drm_modeset_acquire_init(&ctx, 0);
-
- state = drm_atomic_state_alloc(dev);
- if (!state) {
- ret = -ENOMEM;
- goto out_ctx;
- }
-
- state->acquire_ctx = &ctx;
-retry:
- drm_for_each_plane(plane, dev) {
- plane_state = drm_atomic_get_plane_state(state, plane);
- if (IS_ERR(plane_state)) {
- ret = PTR_ERR(plane_state);
- goto out_state;
- }
-
- plane_state->rotation = DRM_MODE_ROTATE_0;
-
- /* disable non-primary: */
- if (plane->type == DRM_PLANE_TYPE_PRIMARY)
- continue;
-
- ret = __drm_atomic_helper_disable_plane(plane, plane_state);
- if (ret != 0)
- goto out_state;
- }
-
- drm_client_for_each_modeset(mode_set, client) {
- struct drm_plane *primary = mode_set->crtc->primary;
- unsigned int rotation;
-
- if (drm_client_panel_rotation(mode_set, &rotation)) {
- /* Cannot fail as we've already gotten the plane state above */
- plane_state = drm_atomic_get_new_plane_state(state, primary);
- plane_state->rotation = rotation;
- }
-
- ret = __drm_atomic_helper_set_config(mode_set, state);
- if (ret != 0)
- goto out_state;
-
- /*
- * __drm_atomic_helper_set_config() sets active when a
- * mode is set, unconditionally clear it if we force DPMS off
- */
- if (!active) {
- struct drm_crtc *crtc = mode_set->crtc;
- struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
-
- crtc_state->active = false;
- }
- }
-
- ret = drm_atomic_commit(state);
-
-out_state:
- if (ret == -EDEADLK)
- goto backoff;
-
- drm_atomic_state_put(state);
-out_ctx:
- drm_modeset_drop_locks(&ctx);
- drm_modeset_acquire_fini(&ctx);
-
- return ret;
-
-backoff:
- drm_atomic_state_clear(state);
- drm_modeset_backoff(&ctx);
-
- goto retry;
-}
-
-static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
-{
- struct drm_device *dev = client->dev;
- struct drm_mode_set *mode_set;
- struct drm_plane *plane;
- int ret = 0;
-
- drm_modeset_lock_all(dev);
- drm_for_each_plane(plane, dev) {
- if (plane->type != DRM_PLANE_TYPE_PRIMARY)
- drm_plane_force_disable(plane);
-
- if (plane->rotation_property)
- drm_mode_plane_set_obj_prop(plane,
- plane->rotation_property,
- DRM_MODE_ROTATE_0);
- }
-
- drm_client_for_each_modeset(mode_set, client) {
- struct drm_crtc *crtc = mode_set->crtc;
-
- if (crtc->funcs->cursor_set2) {
- ret = crtc->funcs->cursor_set2(crtc, NULL, 0, 0, 0, 0, 0);
- if (ret)
- goto out;
- } else if (crtc->funcs->cursor_set) {
- ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0);
- if (ret)
- goto out;
- }
-
- ret = drm_mode_set_config_internal(mode_set);
- if (ret)
- goto out;
- }
-out:
- drm_modeset_unlock_all(dev);
-
- return ret;
-}
-
-/**
- * drm_client_modeset_commit_force() - Force commit CRTC configuration
- * @client: DRM client
- *
- * Commit modeset configuration to crtcs without checking if there is a DRM master.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_modeset_commit_force(struct drm_client_dev *client)
-{
- struct drm_device *dev = client->dev;
- int ret;
-
- mutex_lock(&client->modeset_mutex);
- if (drm_drv_uses_atomic_modeset(dev))
- ret = drm_client_modeset_commit_atomic(client, true);
- else
- ret = drm_client_modeset_commit_legacy(client);
- mutex_unlock(&client->modeset_mutex);
-
- return ret;
-}
-
-/**
- * drm_client_modeset_commit() - Commit CRTC configuration
- * @client: DRM client
- *
- * Commit modeset configuration to crtcs.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_modeset_commit(struct drm_client_dev *client)
-{
- struct drm_device *dev = client->dev;
- int ret;
-
- if (!drm_master_internal_acquire(dev))
- return -EBUSY;
-
- ret = drm_client_modeset_commit_force(client);
-
- drm_master_internal_release(dev);
-
- return ret;
-}
-
/**
* drm_fb_helper_restore_fbdev_mode_unlocked - restore fbdev configuration
* @fb_helper: driver-allocated fbdev helper, can be NULL
@@ -714,58 +484,6 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
#endif
-static void drm_client_modeset_dpms_legacy(struct drm_client_dev *client, int dpms_mode)
-{
- struct drm_device *dev = client->dev;
- struct drm_connector *connector;
- struct drm_mode_set *modeset;
- int j;
-
- drm_modeset_lock_all(dev);
- drm_client_for_each_modeset(modeset, client) {
- if (!modeset->crtc->enabled)
- continue;
-
- for (j = 0; j < modeset->num_connectors; j++) {
- connector = modeset->connectors[j];
- connector->funcs->dpms(connector, dpms_mode);
- drm_object_property_set_value(&connector->base,
- dev->mode_config.dpms_property, dpms_mode);
- }
- }
- drm_modeset_unlock_all(dev);
-}
-
-/**
- * drm_client_modeset_dpms() - Set DPMS mode
- * @client: DRM client
- * @mode: DPMS mode
- *
- * Note: For atomic drivers @mode is reduced to on/off.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
-{
- struct drm_device *dev = client->dev;
- int ret = 0;
-
- if (!drm_master_internal_acquire(dev))
- return -EBUSY;
-
- mutex_lock(&client->modeset_mutex);
- if (drm_drv_uses_atomic_modeset(dev))
- ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
- else
- drm_client_modeset_dpms_legacy(client, mode);
- mutex_unlock(&client->modeset_mutex);
-
- drm_master_internal_release(dev);
-
- return ret;
-}
-
static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
{
struct drm_fb_helper *fb_helper = info->par;
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index 87be9aeb1fe0..6cf48419f77f 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -155,6 +155,10 @@ int drm_client_modeset_create(struct drm_client_dev *client);
void drm_client_modeset_free(struct drm_client_dev *client);
void drm_client_modeset_release(struct drm_client_dev *client);
struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc);
+bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
+int drm_client_modeset_commit_force(struct drm_client_dev *client);
+int drm_client_modeset_commit(struct drm_client_dev *client);
+int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
/**
* drm_client_for_each_modeset() - Iterate over client modesets
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 5/8] drm/fb-helper: Remove drm_fb_helper_connector
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (3 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 4/8] drm/fb-helper: Move " Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 6/8] drm/fb-helper: Prepare to move out modeset config code Noralf Trønnes
` (4 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx, Noralf Trønnes, Sam Ravnborg
All drivers add all their connectors so there's no need to keep around an
array of available connectors. Instead we just put the useable (not
writeback) connectors in a temporary array using
drm_client_for_each_connector_iter() everytime we probe the outputs.
Other places where it's necessary to look at the connectors, we just
iterate over them using the same iterator function.
Rename functions which signature is changed since they will be moved to
drm_client in a later patch.
v6: Improve commit message (Sam Ravnborg)
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
Documentation/gpu/todo.rst | 4 +
drivers/gpu/drm/drm_fb_helper.c | 498 ++++++++++----------------------
include/drm/drm_client.h | 15 +
include/drm/drm_fb_helper.h | 80 ++---
4 files changed, 193 insertions(+), 404 deletions(-)
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 9d4038c50013..ab96ba0600a9 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -292,6 +292,10 @@ drm_fb_helper tasks
- The max connector argument for drm_fb_helper_init() and
drm_fb_helper_fbdev_setup() isn't used anymore and can be removed.
+- The helper doesn't keep an array of connectors anymore so these can be
+ removed: drm_fb_helper_single_add_all_connectors(),
+ drm_fb_helper_add_one_connector() and drm_fb_helper_remove_one_connector().
+
Core refactorings
=================
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index e9cfccda6533..c2719a632e3a 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -90,12 +90,6 @@ static DEFINE_MUTEX(kernel_fb_helper_lock);
* Setup fbdev emulation by calling drm_fb_helper_fbdev_setup() and tear it
* down by calling drm_fb_helper_fbdev_teardown().
*
- * Drivers that need to handle connector hotplugging (e.g. dp mst) can't use
- * the setup helper and will need to do the whole four-step setup process with
- * drm_fb_helper_prepare(), drm_fb_helper_init(),
- * drm_fb_helper_single_add_all_connectors(), enable hotplugging and
- * drm_fb_helper_initial_config() to avoid a possible race window.
- *
* At runtime drivers should restore the fbdev console by using
* drm_fb_helper_lastclose() as their &drm_driver.lastclose callback.
* They should also notify the fb helper code from updates to the output
@@ -118,8 +112,7 @@ static DEFINE_MUTEX(kernel_fb_helper_lock);
* encoders and connectors. To finish up the fbdev helper initialization, the
* drm_fb_helper_init() function is called. To probe for all attached displays
* and set up an initial configuration using the detected hardware, drivers
- * should call drm_fb_helper_single_add_all_connectors() followed by
- * drm_fb_helper_initial_config().
+ * should call drm_fb_helper_initial_config().
*
* If &drm_framebuffer_funcs.dirty is set, the
* drm_fb_helper_{cfb,sys}_{write,fillrect,copyarea,imageblit} functions will
@@ -132,165 +125,6 @@ static DEFINE_MUTEX(kernel_fb_helper_lock);
* deferred I/O (coupled with drm_fb_helper_fbdev_teardown()).
*/
-#define drm_fb_helper_for_each_connector(fbh, i__) \
- for (({ lockdep_assert_held(&(fbh)->lock); }), \
- i__ = 0; i__ < (fbh)->connector_count; i__++)
-
-static int __drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- struct drm_fb_helper_connector *fb_conn;
- struct drm_fb_helper_connector **temp;
- unsigned int count;
-
- if (!drm_fbdev_emulation)
- return 0;
-
- lockdep_assert_held(&fb_helper->lock);
-
- count = fb_helper->connector_count + 1;
-
- if (count > fb_helper->connector_info_alloc_count) {
- size_t size = count * sizeof(fb_conn);
-
- temp = krealloc(fb_helper->connector_info, size, GFP_KERNEL);
- if (!temp)
- return -ENOMEM;
-
- fb_helper->connector_info_alloc_count = count;
- fb_helper->connector_info = temp;
- }
-
- fb_conn = kzalloc(sizeof(*fb_conn), GFP_KERNEL);
- if (!fb_conn)
- return -ENOMEM;
-
- drm_connector_get(connector);
- fb_conn->connector = connector;
- fb_helper->connector_info[fb_helper->connector_count++] = fb_conn;
-
- return 0;
-}
-
-int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- int err;
-
- if (!fb_helper)
- return 0;
-
- mutex_lock(&fb_helper->lock);
- err = __drm_fb_helper_add_one_connector(fb_helper, connector);
- mutex_unlock(&fb_helper->lock);
-
- return err;
-}
-EXPORT_SYMBOL(drm_fb_helper_add_one_connector);
-
-/**
- * drm_fb_helper_single_add_all_connectors() - add all connectors to fbdev
- * emulation helper
- * @fb_helper: fbdev initialized with drm_fb_helper_init, can be NULL
- *
- * This functions adds all the available connectors for use with the given
- * fb_helper. This is a separate step to allow drivers to freely assign
- * connectors to the fbdev, e.g. if some are reserved for special purposes or
- * not adequate to be used for the fbcon.
- *
- * This function is protected against concurrent connector hotadds/removals
- * using drm_fb_helper_add_one_connector() and
- * drm_fb_helper_remove_one_connector().
- */
-int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
-{
- struct drm_device *dev;
- struct drm_connector *connector;
- struct drm_connector_list_iter conn_iter;
- int i, ret = 0;
-
- if (!drm_fbdev_emulation || !fb_helper)
- return 0;
-
- dev = fb_helper->dev;
-
- mutex_lock(&fb_helper->lock);
- drm_connector_list_iter_begin(dev, &conn_iter);
- drm_for_each_connector_iter(connector, &conn_iter) {
- if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
- continue;
-
- ret = __drm_fb_helper_add_one_connector(fb_helper, connector);
- if (ret)
- goto fail;
- }
- goto out;
-
-fail:
- drm_fb_helper_for_each_connector(fb_helper, i) {
- struct drm_fb_helper_connector *fb_helper_connector =
- fb_helper->connector_info[i];
-
- drm_connector_put(fb_helper_connector->connector);
-
- kfree(fb_helper_connector);
- fb_helper->connector_info[i] = NULL;
- }
- fb_helper->connector_count = 0;
-out:
- drm_connector_list_iter_end(&conn_iter);
- mutex_unlock(&fb_helper->lock);
-
- return ret;
-}
-EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
-
-static int __drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- struct drm_fb_helper_connector *fb_helper_connector;
- int i, j;
-
- if (!drm_fbdev_emulation)
- return 0;
-
- lockdep_assert_held(&fb_helper->lock);
-
- drm_fb_helper_for_each_connector(fb_helper, i) {
- if (fb_helper->connector_info[i]->connector == connector)
- break;
- }
-
- if (i == fb_helper->connector_count)
- return -EINVAL;
- fb_helper_connector = fb_helper->connector_info[i];
- drm_connector_put(fb_helper_connector->connector);
-
- for (j = i + 1; j < fb_helper->connector_count; j++)
- fb_helper->connector_info[j - 1] = fb_helper->connector_info[j];
-
- fb_helper->connector_count--;
- kfree(fb_helper_connector);
-
- return 0;
-}
-
-int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- int err;
-
- if (!fb_helper)
- return 0;
-
- mutex_lock(&fb_helper->lock);
- err = __drm_fb_helper_remove_one_connector(fb_helper, connector);
- mutex_unlock(&fb_helper->lock);
-
- return err;
-}
-EXPORT_SYMBOL(drm_fb_helper_remove_one_connector);
-
static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
{
uint16_t *r_base, *g_base, *b_base;
@@ -640,20 +474,9 @@ int drm_fb_helper_init(struct drm_device *dev,
return ret;
}
- fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
- if (!fb_helper->connector_info)
- goto out_free;
-
- fb_helper->connector_info_alloc_count = dev->mode_config.num_connector;
- fb_helper->connector_count = 0;
-
dev->fb_helper = fb_helper;
return 0;
-out_free:
- drm_client_release(&fb_helper->client);
-
- return -ENOMEM;
}
EXPORT_SYMBOL(drm_fb_helper_init);
@@ -728,7 +551,6 @@ EXPORT_SYMBOL(drm_fb_helper_unregister_fbi);
void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
{
struct fb_info *info;
- int i;
if (!fb_helper)
return;
@@ -761,12 +583,6 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
if (!fb_helper->client.funcs)
drm_client_release(&fb_helper->client);
-
- for (i = 0; i < fb_helper->connector_count; i++) {
- drm_connector_put(fb_helper->connector_info[i]->connector);
- kfree(fb_helper->connector_info[i]);
- }
- kfree(fb_helper->connector_info);
}
EXPORT_SYMBOL(drm_fb_helper_fini);
@@ -1645,8 +1461,9 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
struct drm_client_dev *client = &fb_helper->client;
int ret = 0;
int crtc_count = 0;
- int i;
+ struct drm_connector_list_iter conn_iter;
struct drm_fb_helper_surface_size sizes;
+ struct drm_connector *connector;
struct drm_mode_set *mode_set;
int best_depth = 0;
@@ -1663,11 +1480,11 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
if (preferred_bpp != sizes.surface_bpp)
sizes.surface_depth = sizes.surface_bpp = preferred_bpp;
- drm_fb_helper_for_each_connector(fb_helper, i) {
- struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];
+ drm_connector_list_iter_begin(fb_helper->dev, &conn_iter);
+ drm_client_for_each_connector_iter(connector, &conn_iter) {
struct drm_cmdline_mode *cmdline_mode;
- cmdline_mode = &fb_helper_conn->connector->cmdline_mode;
+ cmdline_mode = &connector->cmdline_mode;
if (cmdline_mode->bpp_specified) {
switch (cmdline_mode->bpp) {
@@ -1692,6 +1509,7 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
break;
}
}
+ drm_connector_list_iter_end(&conn_iter);
/*
* If we run into a situation where, for example, the primary plane
@@ -1876,26 +1694,12 @@ void drm_fb_helper_fill_info(struct fb_info *info,
}
EXPORT_SYMBOL(drm_fb_helper_fill_info);
-static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
- uint32_t maxX,
- uint32_t maxY)
-{
- struct drm_connector *connector;
- int i, count = 0;
-
- drm_fb_helper_for_each_connector(fb_helper, i) {
- connector = fb_helper->connector_info[i]->connector;
- count += connector->funcs->fill_modes(connector, maxX, maxY);
- }
-
- return count;
-}
-
-struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
+static struct drm_display_mode *
+drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height)
{
struct drm_display_mode *mode;
- list_for_each_entry(mode, &fb_connector->connector->modes, head) {
+ list_for_each_entry(mode, &connector->modes, head) {
if (mode->hdisplay > width ||
mode->vdisplay > height)
continue;
@@ -1904,20 +1708,15 @@ struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *
}
return NULL;
}
-EXPORT_SYMBOL(drm_has_preferred_mode);
-static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
-{
- return fb_connector->connector->cmdline_mode.specified;
-}
-
-struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn)
+static struct drm_display_mode *
+drm_connector_pick_cmdline_mode(struct drm_connector *connector)
{
struct drm_cmdline_mode *cmdline_mode;
struct drm_display_mode *mode;
bool prefer_non_interlace;
- cmdline_mode = &fb_helper_conn->connector->cmdline_mode;
+ cmdline_mode = &connector->cmdline_mode;
if (cmdline_mode->specified == false)
return NULL;
@@ -1929,7 +1728,7 @@ struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *f
prefer_non_interlace = !cmdline_mode->interlace;
again:
- list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ list_for_each_entry(mode, &connector->modes, head) {
/* check width/height */
if (mode->hdisplay != cmdline_mode->xres ||
mode->vdisplay != cmdline_mode->yres)
@@ -1956,12 +1755,11 @@ struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *f
}
create_mode:
- mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev,
- cmdline_mode);
- list_add(&mode->head, &fb_helper_conn->connector->modes);
+ mode = drm_mode_create_from_cmdline_mode(connector->dev, cmdline_mode);
+ list_add(&mode->head, &connector->modes);
+
return mode;
}
-EXPORT_SYMBOL(drm_pick_cmdline_mode);
static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
{
@@ -1978,15 +1776,16 @@ static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
return enable;
}
-static void drm_enable_connectors(struct drm_fb_helper *fb_helper,
- bool *enabled)
+static void drm_client_connectors_enabled(struct drm_connector **connectors,
+ unsigned int connector_count,
+ bool *enabled)
{
bool any_enabled = false;
struct drm_connector *connector;
int i = 0;
- drm_fb_helper_for_each_connector(fb_helper, i) {
- connector = fb_helper->connector_info[i]->connector;
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
enabled[i] = drm_connector_enabled(connector, true);
DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
connector->display_info.non_desktop ? "non desktop" : enabled[i] ? "yes" : "no");
@@ -1997,28 +1796,27 @@ static void drm_enable_connectors(struct drm_fb_helper *fb_helper,
if (any_enabled)
return;
- drm_fb_helper_for_each_connector(fb_helper, i) {
- connector = fb_helper->connector_info[i]->connector;
- enabled[i] = drm_connector_enabled(connector, false);
- }
+ for (i = 0; i < connector_count; i++)
+ enabled[i] = drm_connector_enabled(connectors[i], false);
}
-static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- bool *enabled, int width, int height)
+static bool drm_client_target_cloned(struct drm_device *dev,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_fb_offset *offsets,
+ bool *enabled, int width, int height)
{
int count, i, j;
bool can_clone = false;
- struct drm_fb_helper_connector *fb_helper_conn;
struct drm_display_mode *dmt_mode, *mode;
/* only contemplate cloning in the single crtc case */
- if (fb_helper->dev->mode_config.num_crtc > 1)
+ if (dev->mode_config.num_crtc > 1)
return false;
count = 0;
- drm_fb_helper_for_each_connector(fb_helper, i) {
+ for (i = 0; i < connector_count; i++) {
if (enabled[i])
count++;
}
@@ -2029,11 +1827,10 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
/* check the command line or if nothing common pick 1024x768 */
can_clone = true;
- drm_fb_helper_for_each_connector(fb_helper, i) {
+ for (i = 0; i < connector_count; i++) {
if (!enabled[i])
continue;
- fb_helper_conn = fb_helper->connector_info[i];
- modes[i] = drm_pick_cmdline_mode(fb_helper_conn);
+ modes[i] = drm_connector_pick_cmdline_mode(connectors[i]);
if (!modes[i]) {
can_clone = false;
break;
@@ -2057,14 +1854,13 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
/* try and find a 1024x768 mode on each connector */
can_clone = true;
- dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false);
+ dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
- drm_fb_helper_for_each_connector(fb_helper, i) {
+ for (i = 0; i < connector_count; i++) {
if (!enabled[i])
continue;
- fb_helper_conn = fb_helper->connector_info[i];
- list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ list_for_each_entry(mode, &connectors[i]->modes, head) {
if (drm_mode_match(mode, dmt_mode,
DRM_MODE_MATCH_TIMINGS |
DRM_MODE_MATCH_CLOCK |
@@ -2084,30 +1880,31 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
return false;
}
-static int drm_get_tile_offsets(struct drm_fb_helper *fb_helper,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- int idx,
- int h_idx, int v_idx)
+static int drm_client_get_tile_offsets(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_fb_offset *offsets,
+ int idx,
+ int h_idx, int v_idx)
{
- struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_connector *connector;
int i;
int hoffset = 0, voffset = 0;
- drm_fb_helper_for_each_connector(fb_helper, i) {
- fb_helper_conn = fb_helper->connector_info[i];
- if (!fb_helper_conn->connector->has_tile)
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
+ if (!connector->has_tile)
continue;
if (!modes[i] && (h_idx || v_idx)) {
DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
- fb_helper_conn->connector->base.id);
+ connector->base.id);
continue;
}
- if (fb_helper_conn->connector->tile_h_loc < h_idx)
+ if (connector->tile_h_loc < h_idx)
hoffset += modes[i]->hdisplay;
- if (fb_helper_conn->connector->tile_v_loc < v_idx)
+ if (connector->tile_v_loc < v_idx)
voffset += modes[i]->vdisplay;
}
offsets[idx].x = hoffset;
@@ -2116,20 +1913,21 @@ static int drm_get_tile_offsets(struct drm_fb_helper *fb_helper,
return 0;
}
-static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- bool *enabled, int width, int height)
+static bool drm_client_target_preferred(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_fb_offset *offsets,
+ bool *enabled, int width, int height)
{
- struct drm_fb_helper_connector *fb_helper_conn;
- const u64 mask = BIT_ULL(fb_helper->connector_count) - 1;
+ const u64 mask = BIT_ULL(connector_count) - 1;
+ struct drm_connector *connector;
u64 conn_configured = 0;
int tile_pass = 0;
int i;
retry:
- drm_fb_helper_for_each_connector(fb_helper, i) {
- fb_helper_conn = fb_helper->connector_info[i];
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
if (conn_configured & BIT_ULL(i))
continue;
@@ -2140,17 +1938,17 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
}
/* first pass over all the untiled connectors */
- if (tile_pass == 0 && fb_helper_conn->connector->has_tile)
+ if (tile_pass == 0 && connector->has_tile)
continue;
if (tile_pass == 1) {
- if (fb_helper_conn->connector->tile_h_loc != 0 ||
- fb_helper_conn->connector->tile_v_loc != 0)
+ if (connector->tile_h_loc != 0 ||
+ connector->tile_v_loc != 0)
continue;
} else {
- if (fb_helper_conn->connector->tile_h_loc != tile_pass - 1 &&
- fb_helper_conn->connector->tile_v_loc != tile_pass - 1)
+ if (connector->tile_h_loc != tile_pass - 1 &&
+ connector->tile_v_loc != tile_pass - 1)
/* if this tile_pass doesn't cover any of the tiles - keep going */
continue;
@@ -2158,22 +1956,22 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
* find the tile offsets for this pass - need to find
* all tiles left and above
*/
- drm_get_tile_offsets(fb_helper, modes, offsets,
- i, fb_helper_conn->connector->tile_h_loc, fb_helper_conn->connector->tile_v_loc);
+ drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i,
+ connector->tile_h_loc, connector->tile_v_loc);
}
DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
- fb_helper_conn->connector->base.id);
+ connector->base.id);
/* got for command line mode first */
- modes[i] = drm_pick_cmdline_mode(fb_helper_conn);
+ modes[i] = drm_connector_pick_cmdline_mode(connector);
if (!modes[i]) {
DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
- fb_helper_conn->connector->base.id, fb_helper_conn->connector->tile_group ? fb_helper_conn->connector->tile_group->id : 0);
- modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height);
+ connector->base.id, connector->tile_group ? connector->tile_group->id : 0);
+ modes[i] = drm_connector_has_preferred_mode(connector, width, height);
}
/* No preferred modes, pick one off the list */
- if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) {
- list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head)
+ if (!modes[i] && !list_empty(&connector->modes)) {
+ list_for_each_entry(modes[i], &connector->modes, head)
break;
}
DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
@@ -2202,40 +2000,41 @@ static bool connector_has_possible_crtc(struct drm_connector *connector,
return false;
}
-static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
- struct drm_crtc **best_crtcs,
- struct drm_display_mode **modes,
- int n, int width, int height)
+static int drm_client_pick_crtcs(struct drm_client_dev *client,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_crtc **best_crtcs,
+ struct drm_display_mode **modes,
+ int n, int width, int height)
{
- struct drm_client_dev *client = &fb_helper->client;
+ struct drm_device *dev = client->dev;
struct drm_connector *connector;
int my_score, best_score, score;
struct drm_crtc **crtcs, *crtc;
struct drm_mode_set *modeset;
- struct drm_fb_helper_connector *fb_helper_conn;
int o;
- if (n == fb_helper->connector_count)
+ if (n == connector_count)
return 0;
- fb_helper_conn = fb_helper->connector_info[n];
- connector = fb_helper_conn->connector;
+ connector = connectors[n];
best_crtcs[n] = NULL;
- best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height);
+ best_score = drm_client_pick_crtcs(client, connectors, connector_count,
+ best_crtcs, modes, n + 1, width, height);
if (modes[n] == NULL)
return best_score;
- crtcs = kcalloc(fb_helper->connector_count, sizeof(*crtcs), GFP_KERNEL);
+ crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
if (!crtcs)
return best_score;
my_score = 1;
if (connector->status == connector_status_connected)
my_score++;
- if (drm_has_cmdline_mode(fb_helper_conn))
+ if (connector->cmdline_mode.specified)
my_score++;
- if (drm_has_preferred_mode(fb_helper_conn, width, height))
+ if (drm_connector_has_preferred_mode(connector, width, height))
my_score++;
/*
@@ -2254,7 +2053,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
if (o < n) {
/* ignore cloning unless only a single crtc */
- if (fb_helper->dev->mode_config.num_crtc > 1)
+ if (dev->mode_config.num_crtc > 1)
continue;
if (!drm_mode_equal(modes[o], modes[n]))
@@ -2263,12 +2062,11 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
crtcs[n] = crtc;
memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
- score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,
- width, height);
+ score = my_score + drm_client_pick_crtcs(client, connectors, connector_count,
+ crtcs, modes, n + 1, width, height);
if (score > best_score) {
best_score = score;
- memcpy(best_crtcs, crtcs,
- fb_helper->connector_count * sizeof(*crtcs));
+ memcpy(best_crtcs, crtcs, connector_count * sizeof(*crtcs));
}
}
@@ -2277,15 +2075,17 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
}
/* Try to read the BIOS display configuration and use it for the initial config */
-static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
- struct drm_crtc **crtcs,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- bool *enabled, int width, int height)
+static bool drm_client_firmware_config(struct drm_client_dev *client,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_crtc **crtcs,
+ struct drm_display_mode **modes,
+ struct drm_fb_offset *offsets,
+ bool *enabled, int width, int height)
{
- struct drm_device *dev = fb_helper->dev;
- unsigned int count = min(fb_helper->connector_count, BITS_PER_LONG);
+ unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
unsigned long conn_configured, conn_seq, mask;
+ struct drm_device *dev = client->dev;
int i, j;
bool *save_enabled;
bool fallback = true, ret = true;
@@ -2311,13 +2111,11 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
retry:
conn_seq = conn_configured;
for (i = 0; i < count; i++) {
- struct drm_fb_helper_connector *fb_conn;
struct drm_connector *connector;
struct drm_encoder *encoder;
struct drm_crtc *new_crtc;
- fb_conn = fb_helper->connector_info[i];
- connector = fb_conn->connector;
+ connector = connectors[i];
if (conn_configured & BIT(i))
continue;
@@ -2374,14 +2172,13 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
connector->name);
/* go for command line mode first */
- modes[i] = drm_pick_cmdline_mode(fb_conn);
+ modes[i] = drm_connector_pick_cmdline_mode(connector);
/* try for preferred next */
if (!modes[i]) {
DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
connector->name, connector->has_tile);
- modes[i] = drm_has_preferred_mode(fb_conn, width,
- height);
+ modes[i] = drm_connector_has_preferred_mode(connector, width, height);
}
/* No preferred mode marked by the EDID? Are there any modes? */
@@ -2456,8 +2253,12 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper,
static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
u32 width, u32 height)
{
+ struct drm_connector *connector, **connectors = NULL;
struct drm_client_dev *client = &fb_helper->client;
+ struct drm_connector_list_iter conn_iter;
struct drm_device *dev = fb_helper->dev;
+ unsigned int total_modes_count = 0;
+ unsigned int connector_count = 0;
struct drm_display_mode **modes;
struct drm_fb_offset *offsets;
struct drm_crtc **crtcs;
@@ -2465,16 +2266,28 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
int i;
DRM_DEBUG_KMS("\n");
- /* prevent concurrent modification of connector_count by hotplug */
- lockdep_assert_held(&fb_helper->lock);
- crtcs = kcalloc(fb_helper->connector_count, sizeof(*crtcs), GFP_KERNEL);
- modes = kcalloc(fb_helper->connector_count,
- sizeof(struct drm_display_mode *), GFP_KERNEL);
- offsets = kcalloc(fb_helper->connector_count,
- sizeof(struct drm_fb_offset), GFP_KERNEL);
- enabled = kcalloc(fb_helper->connector_count,
- sizeof(bool), GFP_KERNEL);
+ drm_connector_list_iter_begin(dev, &conn_iter);
+ drm_client_for_each_connector_iter(connector, &conn_iter) {
+ struct drm_connector **tmp;
+
+ tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
+ if (!tmp)
+ goto free_connectors;
+
+ connectors = tmp;
+ drm_connector_get(connector);
+ connectors[connector_count++] = connector;
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ if (!connector_count)
+ return;
+
+ crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
+ modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
+ offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
+ enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
if (!crtcs || !modes || !enabled || !offsets) {
DRM_ERROR("Memory allocation failed\n");
goto out;
@@ -2483,40 +2296,42 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
mutex_lock(&client->modeset_mutex);
mutex_lock(&fb_helper->dev->mode_config.mutex);
- if (drm_fb_helper_probe_connector_modes(fb_helper, width, height) == 0)
+ for (i = 0; i < connector_count; i++)
+ total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
+ if (!total_modes_count)
DRM_DEBUG_KMS("No connectors reported connected with modes\n");
- drm_enable_connectors(fb_helper, enabled);
+ drm_client_connectors_enabled(connectors, connector_count, enabled);
- if (!drm_fb_helper_firmware_config(fb_helper, crtcs, modes, offsets,
- enabled, width, height)) {
- memset(modes, 0, fb_helper->connector_count*sizeof(modes[0]));
- memset(crtcs, 0, fb_helper->connector_count*sizeof(crtcs[0]));
- memset(offsets, 0, fb_helper->connector_count*sizeof(offsets[0]));
+ if (!drm_client_firmware_config(client, connectors, connector_count, crtcs,
+ modes, offsets, enabled, width, height)) {
+ memset(modes, 0, connector_count * sizeof(*modes));
+ memset(crtcs, 0, connector_count * sizeof(*crtcs));
+ memset(offsets, 0, connector_count * sizeof(*offsets));
- if (!drm_target_cloned(fb_helper, modes, offsets,
- enabled, width, height) &&
- !drm_target_preferred(fb_helper, modes, offsets,
- enabled, width, height))
+ if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
+ offsets, enabled, width, height) &&
+ !drm_client_target_preferred(connectors, connector_count, modes,
+ offsets, enabled, width, height))
DRM_ERROR("Unable to find initial modes\n");
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
width, height);
- drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height);
+ drm_client_pick_crtcs(client, connectors, connector_count,
+ crtcs, modes, 0, width, height);
}
mutex_unlock(&fb_helper->dev->mode_config.mutex);
drm_client_modeset_release(client);
- drm_fb_helper_for_each_connector(fb_helper, i) {
+ for (i = 0; i < connector_count; i++) {
struct drm_display_mode *mode = modes[i];
struct drm_crtc *crtc = crtcs[i];
struct drm_fb_offset *offset = &offsets[i];
if (mode && crtc) {
struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
- struct drm_connector *connector =
- fb_helper->connector_info[i]->connector;
+ struct drm_connector *connector = connectors[i];
DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
mode->name, crtc->base.id, offset->x, offset->y);
@@ -2539,6 +2354,10 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
kfree(modes);
kfree(offsets);
kfree(enabled);
+free_connectors:
+ for (i = 0; i < connector_count; i++)
+ drm_connector_put(connectors[i]);
+ kfree(connectors);
}
/*
@@ -2551,10 +2370,11 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
{
struct drm_client_dev *client = &fb_helper->client;
+ struct drm_connector_list_iter conn_iter;
struct fb_info *info = fb_helper->fbdev;
unsigned int rotation, sw_rotations = 0;
+ struct drm_connector *connector;
struct drm_mode_set *modeset;
- int i;
mutex_lock(&client->modeset_mutex);
drm_client_for_each_modeset(modeset, client) {
@@ -2571,10 +2391,8 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
}
mutex_unlock(&client->modeset_mutex);
- mutex_lock(&fb_helper->dev->mode_config.mutex);
- drm_fb_helper_for_each_connector(fb_helper, i) {
- struct drm_connector *connector =
- fb_helper->connector_info[i]->connector;
+ drm_connector_list_iter_begin(fb_helper->dev, &conn_iter);
+ drm_client_for_each_connector_iter(connector, &conn_iter) {
/* use first connected connector for the physical dimensions */
if (connector->status == connector_status_connected) {
@@ -2583,7 +2401,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)
break;
}
}
- mutex_unlock(&fb_helper->dev->mode_config.mutex);
+ drm_connector_list_iter_end(&conn_iter);
switch (sw_rotations) {
case DRM_MODE_ROTATE_0:
@@ -2821,12 +2639,6 @@ int drm_fb_helper_fbdev_setup(struct drm_device *dev,
return ret;
}
- ret = drm_fb_helper_single_add_all_connectors(fb_helper);
- if (ret < 0) {
- DRM_DEV_ERROR(dev->dev, "fbdev: Failed to add connectors (ret=%d)\n", ret);
- goto err_drm_fb_helper_fini;
- }
-
if (!drm_drv_uses_atomic_modeset(dev))
drm_helper_disable_unused_functions(dev);
@@ -3132,10 +2944,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client)
if (ret)
goto err;
- ret = drm_fb_helper_single_add_all_connectors(fb_helper);
- if (ret)
- goto err_cleanup;
-
if (!drm_drv_uses_atomic_modeset(dev))
drm_helper_disable_unused_functions(dev);
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index 6cf48419f77f..8d94880bbe25 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -7,6 +7,7 @@
#include <linux/mutex.h>
#include <linux/types.h>
+#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
struct drm_client_dev;
@@ -169,6 +170,20 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
for (({ lockdep_assert_held(&(client)->modeset_mutex); }), \
modeset = (client)->modesets; modeset->crtc; modeset++)
+/**
+ * drm_client_for_each_connector_iter - connector_list iterator macro
+ * @connector: &struct drm_connector pointer used as cursor
+ * @iter: &struct drm_connector_list_iter
+ *
+ * This iterates the connectors that are useable for internal clients (excludes
+ * writeback connectors).
+ *
+ * For more info see drm_for_each_connector_iter().
+ */
+#define drm_client_for_each_connector_iter(connector, iter) \
+ drm_for_each_connector_iter(connector, iter) \
+ if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK)
+
int drm_client_debugfs_init(struct drm_minor *minor);
#endif
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 6b334f4d8a22..e14d52ef9638 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -97,16 +97,10 @@ struct drm_fb_helper_funcs {
struct drm_fb_helper_surface_size *sizes);
};
-struct drm_fb_helper_connector {
- struct drm_connector *connector;
-};
-
/**
* struct drm_fb_helper - main structure to emulate fbdev on top of KMS
* @fb: Scanout framebuffer object
* @dev: DRM device
- * @connector_count: number of connected connectors
- * @connector_info_alloc_count: size of connector_info
* @funcs: driver callbacks for fb helper
* @fbdev: emulated fbdev device info struct
* @pseudo_palette: fake palette of 16 colors
@@ -138,15 +132,6 @@ struct drm_fb_helper {
struct drm_framebuffer *fb;
struct drm_device *dev;
- int connector_count;
- int connector_info_alloc_count;
- /**
- * @connector_info:
- *
- * Array of per-connector information. Do not iterate directly, but use
- * drm_fb_helper_for_each_connector.
- */
- struct drm_fb_helper_connector **connector_info;
const struct drm_fb_helper_funcs *funcs;
struct fb_info *fbdev;
u32 pseudo_palette[17];
@@ -286,18 +271,8 @@ int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
-int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
int drm_fb_helper_debug_enter(struct fb_info *info);
int drm_fb_helper_debug_leave(struct fb_info *info);
-struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
- int width, int height);
-struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn);
-
-int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
-int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector);
int drm_fb_helper_fbdev_setup(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
@@ -472,12 +447,6 @@ static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper,
return 0;
}
-static inline int
-drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
-{
- return 0;
-}
-
static inline int drm_fb_helper_debug_enter(struct fb_info *info)
{
return 0;
@@ -488,34 +457,6 @@ static inline int drm_fb_helper_debug_leave(struct fb_info *info)
return 0;
}
-static inline struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
- int width, int height)
-{
- return NULL;
-}
-
-static inline struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
- int width, int height)
-{
- return NULL;
-}
-
-static inline int
-drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- return 0;
-}
-
-static inline int
-drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- return 0;
-}
-
static inline int
drm_fb_helper_fbdev_setup(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
@@ -557,6 +498,27 @@ drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
#endif
+/* TODO: There's a todo entry to remove these three */
+static inline int
+drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
+{
+ return 0;
+}
+
+static inline int
+drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
+static inline int
+drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
/**
* drm_fb_helper_remove_conflicting_framebuffers - remove firmware-configured framebuffers
* @a: memory range, users of which are to be removed
--
2.20.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 6/8] drm/fb-helper: Prepare to move out modeset config code
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (4 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 5/8] drm/fb-helper: Remove drm_fb_helper_connector Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 7/8] drm/fb-helper: Move " Noralf Trønnes
` (3 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: Maxime Ripard, intel-gfx, Noralf Trønnes, Sam Ravnborg
This prepares the modeset code so it can be moved out as-is in the next
patch.
v3: Remove stray newline
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
drivers/gpu/drm/drm_fb_helper.c | 62 +++++++++++++++++++++++----------
include/drm/drm_fb_helper.h | 4 ---
2 files changed, 44 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index c2719a632e3a..4788f5a28513 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -43,6 +43,10 @@
#include "drm_internal.h"
+struct drm_client_offset {
+ int x, y;
+};
+
static bool drm_fbdev_emulation = true;
module_param_named(fbdev_emulation, drm_fbdev_emulation, bool, 0600);
MODULE_PARM_DESC(fbdev_emulation,
@@ -1804,7 +1808,7 @@ static bool drm_client_target_cloned(struct drm_device *dev,
struct drm_connector **connectors,
unsigned int connector_count,
struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
+ struct drm_client_offset *offsets,
bool *enabled, int width, int height)
{
int count, i, j;
@@ -1883,7 +1887,7 @@ static bool drm_client_target_cloned(struct drm_device *dev,
static int drm_client_get_tile_offsets(struct drm_connector **connectors,
unsigned int connector_count,
struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
+ struct drm_client_offset *offsets,
int idx,
int h_idx, int v_idx)
{
@@ -1916,7 +1920,7 @@ static int drm_client_get_tile_offsets(struct drm_connector **connectors,
static bool drm_client_target_preferred(struct drm_connector **connectors,
unsigned int connector_count,
struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
+ struct drm_client_offset *offsets,
bool *enabled, int width, int height)
{
const u64 mask = BIT_ULL(connector_count) - 1;
@@ -2080,7 +2084,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
unsigned int connector_count,
struct drm_crtc **crtcs,
struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
+ struct drm_client_offset *offsets,
bool *enabled, int width, int height)
{
unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
@@ -2250,30 +2254,47 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
return ret;
}
-static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
- u32 width, u32 height)
+/**
+ * drm_client_modeset_probe() - Probe for displays
+ * @client: DRM client
+ * @width: Maximum display mode width (optional)
+ * @height: Maximum display mode height (optional)
+ *
+ * This function sets up display pipelines for enabled connectors and stores the
+ * config in the client's modeset array.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height)
{
struct drm_connector *connector, **connectors = NULL;
- struct drm_client_dev *client = &fb_helper->client;
struct drm_connector_list_iter conn_iter;
- struct drm_device *dev = fb_helper->dev;
+ struct drm_device *dev = client->dev;
unsigned int total_modes_count = 0;
+ struct drm_client_offset *offsets;
unsigned int connector_count = 0;
struct drm_display_mode **modes;
- struct drm_fb_offset *offsets;
struct drm_crtc **crtcs;
+ int i, ret = 0;
bool *enabled;
- int i;
DRM_DEBUG_KMS("\n");
+ if (!width)
+ width = dev->mode_config.max_width;
+ if (!height)
+ height = dev->mode_config.max_height;
+
drm_connector_list_iter_begin(dev, &conn_iter);
drm_client_for_each_connector_iter(connector, &conn_iter) {
struct drm_connector **tmp;
tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
- if (!tmp)
+ if (!tmp) {
+ ret = -ENOMEM;
goto free_connectors;
+ }
connectors = tmp;
drm_connector_get(connector);
@@ -2282,7 +2303,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
drm_connector_list_iter_end(&conn_iter);
if (!connector_count)
- return;
+ return 0;
crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
@@ -2290,12 +2311,13 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
if (!crtcs || !modes || !enabled || !offsets) {
DRM_ERROR("Memory allocation failed\n");
+ ret = -ENOMEM;
goto out;
}
mutex_lock(&client->modeset_mutex);
- mutex_lock(&fb_helper->dev->mode_config.mutex);
+ mutex_lock(&dev->mode_config.mutex);
for (i = 0; i < connector_count; i++)
total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
if (!total_modes_count)
@@ -2320,14 +2342,14 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
drm_client_pick_crtcs(client, connectors, connector_count,
crtcs, modes, 0, width, height);
}
- mutex_unlock(&fb_helper->dev->mode_config.mutex);
+ mutex_unlock(&dev->mode_config.mutex);
drm_client_modeset_release(client);
for (i = 0; i < connector_count; i++) {
struct drm_display_mode *mode = modes[i];
struct drm_crtc *crtc = crtcs[i];
- struct drm_fb_offset *offset = &offsets[i];
+ struct drm_client_offset *offset = &offsets[i];
if (mode && crtc) {
struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
@@ -2337,8 +2359,10 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
mode->name, crtc->base.id, offset->x, offset->y);
if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
- (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1)))
+ (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) {
+ ret = -EINVAL;
break;
+ }
modeset->mode = drm_mode_duplicate(dev, mode);
drm_connector_get(connector);
@@ -2358,6 +2382,8 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
for (i = 0; i < connector_count; i++)
drm_connector_put(connectors[i]);
kfree(connectors);
+
+ return ret;
}
/*
@@ -2439,7 +2465,7 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper,
width = dev->mode_config.max_width;
height = dev->mode_config.max_height;
- drm_setup_crtcs(fb_helper, width, height);
+ drm_client_modeset_probe(&fb_helper->client, width, height);
ret = drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
if (ret < 0) {
if (ret == -EAGAIN) {
@@ -2586,7 +2612,7 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
DRM_DEBUG_KMS("\n");
- drm_setup_crtcs(fb_helper, fb_helper->fb->width, fb_helper->fb->height);
+ drm_client_modeset_probe(&fb_helper->client, fb_helper->fb->width, fb_helper->fb->height);
drm_setup_crtcs_fb(fb_helper);
mutex_unlock(&fb_helper->lock);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index e14d52ef9638..c8a8ae2a678a 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -43,10 +43,6 @@ enum mode_set_atomic {
ENTER_ATOMIC_MODE_SET,
};
-struct drm_fb_offset {
- int x, y;
-};
-
/**
* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
* @fb_width: fbdev width
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 7/8] drm/fb-helper: Move out modeset config code
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (5 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 6/8] drm/fb-helper: Prepare to move out modeset config code Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 13:44 ` [PATCH v6 8/8] drm/client: Hack: Add bootsplash example Noralf Trønnes
` (2 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: Maxime Ripard, intel-gfx, Sam Ravnborg
No functional changes, just moving code as-is and fixing includes.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---
drivers/gpu/drm/drm_client_modeset.c | 707 ++++++++++++++++++++++++++-
drivers/gpu/drm/drm_fb_helper.c | 692 --------------------------
include/drm/drm_client.h | 5 +-
3 files changed, 702 insertions(+), 702 deletions(-)
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index b2aedec65637..e8b5c54d6c05 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -13,13 +13,22 @@
#include <drm/drm_atomic.h>
#include <drm/drm_client.h>
+#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
+#include <drm/drm_encoder.h>
+#include <drm/drm_print.h>
#include "drm_crtc_internal.h"
#include "drm_internal.h"
+#define DRM_CLIENT_MAX_CLONED_CONNECTORS 8
+
+struct drm_client_offset {
+ int x, y;
+};
+
int drm_client_modeset_create(struct drm_client_dev *client)
{
struct drm_device *dev = client->dev;
@@ -58,7 +67,7 @@ int drm_client_modeset_create(struct drm_client_dev *client)
return -ENOMEM;
}
-void drm_client_modeset_release(struct drm_client_dev *client)
+static void drm_client_modeset_release(struct drm_client_dev *client)
{
struct drm_mode_set *modeset;
unsigned int i;
@@ -75,8 +84,6 @@ void drm_client_modeset_release(struct drm_client_dev *client)
modeset->num_connectors = 0;
}
}
-/* TODO: Remove export when modeset code has been moved over */
-EXPORT_SYMBOL(drm_client_modeset_release);
void drm_client_modeset_free(struct drm_client_dev *client)
{
@@ -95,7 +102,8 @@ void drm_client_modeset_free(struct drm_client_dev *client)
kfree(client->modesets);
}
-struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc)
+static struct drm_mode_set *
+drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc)
{
struct drm_mode_set *modeset;
@@ -105,8 +113,695 @@ struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, stru
return NULL;
}
-/* TODO: Remove export when modeset code has been moved over */
-EXPORT_SYMBOL(drm_client_find_modeset);
+
+static struct drm_display_mode *
+drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ if (mode->hdisplay > width ||
+ mode->vdisplay > height)
+ continue;
+ if (mode->type & DRM_MODE_TYPE_PREFERRED)
+ return mode;
+ }
+ return NULL;
+}
+
+static struct drm_display_mode *
+drm_connector_pick_cmdline_mode(struct drm_connector *connector)
+{
+ struct drm_cmdline_mode *cmdline_mode;
+ struct drm_display_mode *mode;
+ bool prefer_non_interlace;
+
+ cmdline_mode = &connector->cmdline_mode;
+ if (cmdline_mode->specified == false)
+ return NULL;
+
+ /* attempt to find a matching mode in the list of modes
+ * we have gotten so far, if not add a CVT mode that conforms
+ */
+ if (cmdline_mode->rb || cmdline_mode->margins)
+ goto create_mode;
+
+ prefer_non_interlace = !cmdline_mode->interlace;
+again:
+ list_for_each_entry(mode, &connector->modes, head) {
+ /* check width/height */
+ if (mode->hdisplay != cmdline_mode->xres ||
+ mode->vdisplay != cmdline_mode->yres)
+ continue;
+
+ if (cmdline_mode->refresh_specified) {
+ if (mode->vrefresh != cmdline_mode->refresh)
+ continue;
+ }
+
+ if (cmdline_mode->interlace) {
+ if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
+ continue;
+ } else if (prefer_non_interlace) {
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ continue;
+ }
+ return mode;
+ }
+
+ if (prefer_non_interlace) {
+ prefer_non_interlace = false;
+ goto again;
+ }
+
+create_mode:
+ mode = drm_mode_create_from_cmdline_mode(connector->dev, cmdline_mode);
+ list_add(&mode->head, &connector->modes);
+
+ return mode;
+}
+
+static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
+{
+ bool enable;
+
+ if (connector->display_info.non_desktop)
+ return false;
+
+ if (strict)
+ enable = connector->status == connector_status_connected;
+ else
+ enable = connector->status != connector_status_disconnected;
+
+ return enable;
+}
+
+static void drm_client_connectors_enabled(struct drm_connector **connectors,
+ unsigned int connector_count,
+ bool *enabled)
+{
+ bool any_enabled = false;
+ struct drm_connector *connector;
+ int i = 0;
+
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
+ enabled[i] = drm_connector_enabled(connector, true);
+ DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
+ connector->display_info.non_desktop ? "non desktop" : enabled[i] ? "yes" : "no");
+
+ any_enabled |= enabled[i];
+ }
+
+ if (any_enabled)
+ return;
+
+ for (i = 0; i < connector_count; i++)
+ enabled[i] = drm_connector_enabled(connectors[i], false);
+}
+
+static bool drm_client_target_cloned(struct drm_device *dev,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_offset *offsets,
+ bool *enabled, int width, int height)
+{
+ int count, i, j;
+ bool can_clone = false;
+ struct drm_display_mode *dmt_mode, *mode;
+
+ /* only contemplate cloning in the single crtc case */
+ if (dev->mode_config.num_crtc > 1)
+ return false;
+
+ count = 0;
+ for (i = 0; i < connector_count; i++) {
+ if (enabled[i])
+ count++;
+ }
+
+ /* only contemplate cloning if more than one connector is enabled */
+ if (count <= 1)
+ return false;
+
+ /* check the command line or if nothing common pick 1024x768 */
+ can_clone = true;
+ for (i = 0; i < connector_count; i++) {
+ if (!enabled[i])
+ continue;
+ modes[i] = drm_connector_pick_cmdline_mode(connectors[i]);
+ if (!modes[i]) {
+ can_clone = false;
+ break;
+ }
+ for (j = 0; j < i; j++) {
+ if (!enabled[j])
+ continue;
+ if (!drm_mode_match(modes[j], modes[i],
+ DRM_MODE_MATCH_TIMINGS |
+ DRM_MODE_MATCH_CLOCK |
+ DRM_MODE_MATCH_FLAGS |
+ DRM_MODE_MATCH_3D_FLAGS))
+ can_clone = false;
+ }
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using command line\n");
+ return true;
+ }
+
+ /* try and find a 1024x768 mode on each connector */
+ can_clone = true;
+ dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
+
+ for (i = 0; i < connector_count; i++) {
+ if (!enabled[i])
+ continue;
+
+ list_for_each_entry(mode, &connectors[i]->modes, head) {
+ if (drm_mode_match(mode, dmt_mode,
+ DRM_MODE_MATCH_TIMINGS |
+ DRM_MODE_MATCH_CLOCK |
+ DRM_MODE_MATCH_FLAGS |
+ DRM_MODE_MATCH_3D_FLAGS))
+ modes[i] = mode;
+ }
+ if (!modes[i])
+ can_clone = false;
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using 1024x768\n");
+ return true;
+ }
+ DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
+ return false;
+}
+
+static int drm_client_get_tile_offsets(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_offset *offsets,
+ int idx,
+ int h_idx, int v_idx)
+{
+ struct drm_connector *connector;
+ int i;
+ int hoffset = 0, voffset = 0;
+
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
+ if (!connector->has_tile)
+ continue;
+
+ if (!modes[i] && (h_idx || v_idx)) {
+ DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
+ connector->base.id);
+ continue;
+ }
+ if (connector->tile_h_loc < h_idx)
+ hoffset += modes[i]->hdisplay;
+
+ if (connector->tile_v_loc < v_idx)
+ voffset += modes[i]->vdisplay;
+ }
+ offsets[idx].x = hoffset;
+ offsets[idx].y = voffset;
+ DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx);
+ return 0;
+}
+
+static bool drm_client_target_preferred(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_offset *offsets,
+ bool *enabled, int width, int height)
+{
+ const u64 mask = BIT_ULL(connector_count) - 1;
+ struct drm_connector *connector;
+ u64 conn_configured = 0;
+ int tile_pass = 0;
+ int i;
+
+retry:
+ for (i = 0; i < connector_count; i++) {
+ connector = connectors[i];
+
+ if (conn_configured & BIT_ULL(i))
+ continue;
+
+ if (enabled[i] == false) {
+ conn_configured |= BIT_ULL(i);
+ continue;
+ }
+
+ /* first pass over all the untiled connectors */
+ if (tile_pass == 0 && connector->has_tile)
+ continue;
+
+ if (tile_pass == 1) {
+ if (connector->tile_h_loc != 0 ||
+ connector->tile_v_loc != 0)
+ continue;
+
+ } else {
+ if (connector->tile_h_loc != tile_pass - 1 &&
+ connector->tile_v_loc != tile_pass - 1)
+ /* if this tile_pass doesn't cover any of the tiles - keep going */
+ continue;
+
+ /*
+ * find the tile offsets for this pass - need to find
+ * all tiles left and above
+ */
+ drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i,
+ connector->tile_h_loc, connector->tile_v_loc);
+ }
+ DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
+ connector->base.id);
+
+ /* got for command line mode first */
+ modes[i] = drm_connector_pick_cmdline_mode(connector);
+ if (!modes[i]) {
+ DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
+ connector->base.id, connector->tile_group ? connector->tile_group->id : 0);
+ modes[i] = drm_connector_has_preferred_mode(connector, width, height);
+ }
+ /* No preferred modes, pick one off the list */
+ if (!modes[i] && !list_empty(&connector->modes)) {
+ list_for_each_entry(modes[i], &connector->modes, head)
+ break;
+ }
+ DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
+ "none");
+ conn_configured |= BIT_ULL(i);
+ }
+
+ if ((conn_configured & mask) != mask) {
+ tile_pass++;
+ goto retry;
+ }
+ return true;
+}
+
+static bool connector_has_possible_crtc(struct drm_connector *connector,
+ struct drm_crtc *crtc)
+{
+ struct drm_encoder *encoder;
+ int i;
+
+ drm_connector_for_each_possible_encoder(connector, encoder, i) {
+ if (encoder->possible_crtcs & drm_crtc_mask(crtc))
+ return true;
+ }
+
+ return false;
+}
+
+static int drm_client_pick_crtcs(struct drm_client_dev *client,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_crtc **best_crtcs,
+ struct drm_display_mode **modes,
+ int n, int width, int height)
+{
+ struct drm_device *dev = client->dev;
+ struct drm_connector *connector;
+ int my_score, best_score, score;
+ struct drm_crtc **crtcs, *crtc;
+ struct drm_mode_set *modeset;
+ int o;
+
+ if (n == connector_count)
+ return 0;
+
+ connector = connectors[n];
+
+ best_crtcs[n] = NULL;
+ best_score = drm_client_pick_crtcs(client, connectors, connector_count,
+ best_crtcs, modes, n + 1, width, height);
+ if (modes[n] == NULL)
+ return best_score;
+
+ crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
+ if (!crtcs)
+ return best_score;
+
+ my_score = 1;
+ if (connector->status == connector_status_connected)
+ my_score++;
+ if (connector->cmdline_mode.specified)
+ my_score++;
+ if (drm_connector_has_preferred_mode(connector, width, height))
+ my_score++;
+
+ /*
+ * select a crtc for this connector and then attempt to configure
+ * remaining connectors
+ */
+ drm_client_for_each_modeset(modeset, client) {
+ crtc = modeset->crtc;
+
+ if (!connector_has_possible_crtc(connector, crtc))
+ continue;
+
+ for (o = 0; o < n; o++)
+ if (best_crtcs[o] == crtc)
+ break;
+
+ if (o < n) {
+ /* ignore cloning unless only a single crtc */
+ if (dev->mode_config.num_crtc > 1)
+ continue;
+
+ if (!drm_mode_equal(modes[o], modes[n]))
+ continue;
+ }
+
+ crtcs[n] = crtc;
+ memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
+ score = my_score + drm_client_pick_crtcs(client, connectors, connector_count,
+ crtcs, modes, n + 1, width, height);
+ if (score > best_score) {
+ best_score = score;
+ memcpy(best_crtcs, crtcs, connector_count * sizeof(*crtcs));
+ }
+ }
+
+ kfree(crtcs);
+ return best_score;
+}
+
+/* Try to read the BIOS display configuration and use it for the initial config */
+static bool drm_client_firmware_config(struct drm_client_dev *client,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_crtc **crtcs,
+ struct drm_display_mode **modes,
+ struct drm_client_offset *offsets,
+ bool *enabled, int width, int height)
+{
+ unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
+ unsigned long conn_configured, conn_seq, mask;
+ struct drm_device *dev = client->dev;
+ int i, j;
+ bool *save_enabled;
+ bool fallback = true, ret = true;
+ int num_connectors_enabled = 0;
+ int num_connectors_detected = 0;
+ struct drm_modeset_acquire_ctx ctx;
+
+ if (!drm_drv_uses_atomic_modeset(dev))
+ return false;
+
+ save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL);
+ if (!save_enabled)
+ return false;
+
+ drm_modeset_acquire_init(&ctx, 0);
+
+ while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
+ drm_modeset_backoff(&ctx);
+
+ memcpy(save_enabled, enabled, count);
+ mask = GENMASK(count - 1, 0);
+ conn_configured = 0;
+retry:
+ conn_seq = conn_configured;
+ for (i = 0; i < count; i++) {
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ struct drm_crtc *new_crtc;
+
+ connector = connectors[i];
+
+ if (conn_configured & BIT(i))
+ continue;
+
+ if (conn_seq == 0 && !connector->has_tile)
+ continue;
+
+ if (connector->status == connector_status_connected)
+ num_connectors_detected++;
+
+ if (!enabled[i]) {
+ DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
+ connector->name);
+ conn_configured |= BIT(i);
+ continue;
+ }
+
+ if (connector->force == DRM_FORCE_OFF) {
+ DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n",
+ connector->name);
+ enabled[i] = false;
+ continue;
+ }
+
+ encoder = connector->state->best_encoder;
+ if (!encoder || WARN_ON(!connector->state->crtc)) {
+ if (connector->force > DRM_FORCE_OFF)
+ goto bail;
+
+ DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
+ connector->name);
+ enabled[i] = false;
+ conn_configured |= BIT(i);
+ continue;
+ }
+
+ num_connectors_enabled++;
+
+ new_crtc = connector->state->crtc;
+
+ /*
+ * Make sure we're not trying to drive multiple connectors
+ * with a single CRTC, since our cloning support may not
+ * match the BIOS.
+ */
+ for (j = 0; j < count; j++) {
+ if (crtcs[j] == new_crtc) {
+ DRM_DEBUG_KMS("fallback: cloned configuration\n");
+ goto bail;
+ }
+ }
+
+ DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n",
+ connector->name);
+
+ /* go for command line mode first */
+ modes[i] = drm_connector_pick_cmdline_mode(connector);
+
+ /* try for preferred next */
+ if (!modes[i]) {
+ DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
+ connector->name, connector->has_tile);
+ modes[i] = drm_connector_has_preferred_mode(connector, width, height);
+ }
+
+ /* No preferred mode marked by the EDID? Are there any modes? */
+ if (!modes[i] && !list_empty(&connector->modes)) {
+ DRM_DEBUG_KMS("using first mode listed on connector %s\n",
+ connector->name);
+ modes[i] = list_first_entry(&connector->modes,
+ struct drm_display_mode,
+ head);
+ }
+
+ /* last resort: use current mode */
+ if (!modes[i]) {
+ /*
+ * IMPORTANT: We want to use the adjusted mode (i.e.
+ * after the panel fitter upscaling) as the initial
+ * config, not the input mode, which is what crtc->mode
+ * usually contains. But since our current
+ * code puts a mode derived from the post-pfit timings
+ * into crtc->mode this works out correctly.
+ *
+ * This is crtc->mode and not crtc->state->mode for the
+ * fastboot check to work correctly.
+ */
+ DRM_DEBUG_KMS("looking for current mode on connector %s\n",
+ connector->name);
+ modes[i] = &connector->state->crtc->mode;
+ }
+ crtcs[i] = new_crtc;
+
+ DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",
+ connector->name,
+ connector->state->crtc->base.id,
+ connector->state->crtc->name,
+ modes[i]->hdisplay, modes[i]->vdisplay,
+ modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : "");
+
+ fallback = false;
+ conn_configured |= BIT(i);
+ }
+
+ if ((conn_configured & mask) != mask && conn_configured != conn_seq)
+ goto retry;
+
+ /*
+ * If the BIOS didn't enable everything it could, fall back to have the
+ * same user experiencing of lighting up as much as possible like the
+ * fbdev helper library.
+ */
+ if (num_connectors_enabled != num_connectors_detected &&
+ num_connectors_enabled < dev->mode_config.num_crtc) {
+ DRM_DEBUG_KMS("fallback: Not all outputs enabled\n");
+ DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled,
+ num_connectors_detected);
+ fallback = true;
+ }
+
+ if (fallback) {
+bail:
+ DRM_DEBUG_KMS("Not using firmware configuration\n");
+ memcpy(enabled, save_enabled, count);
+ ret = false;
+ }
+
+ drm_modeset_drop_locks(&ctx);
+ drm_modeset_acquire_fini(&ctx);
+
+ kfree(save_enabled);
+ return ret;
+}
+
+/**
+ * drm_client_modeset_probe() - Probe for displays
+ * @client: DRM client
+ * @width: Maximum display mode width (optional)
+ * @height: Maximum display mode height (optional)
+ *
+ * This function sets up display pipelines for enabled connectors and stores the
+ * config in the client's modeset array.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height)
+{
+ struct drm_connector *connector, **connectors = NULL;
+ struct drm_connector_list_iter conn_iter;
+ struct drm_device *dev = client->dev;
+ unsigned int total_modes_count = 0;
+ struct drm_client_offset *offsets;
+ unsigned int connector_count = 0;
+ struct drm_display_mode **modes;
+ struct drm_crtc **crtcs;
+ int i, ret = 0;
+ bool *enabled;
+
+ DRM_DEBUG_KMS("\n");
+
+ if (!width)
+ width = dev->mode_config.max_width;
+ if (!height)
+ height = dev->mode_config.max_height;
+
+ drm_connector_list_iter_begin(dev, &conn_iter);
+ drm_client_for_each_connector_iter(connector, &conn_iter) {
+ struct drm_connector **tmp;
+
+ tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
+ if (!tmp) {
+ ret = -ENOMEM;
+ goto free_connectors;
+ }
+
+ connectors = tmp;
+ drm_connector_get(connector);
+ connectors[connector_count++] = connector;
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ if (!connector_count)
+ return 0;
+
+ crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
+ modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
+ offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
+ enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
+ if (!crtcs || !modes || !enabled || !offsets) {
+ DRM_ERROR("Memory allocation failed\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ mutex_lock(&client->modeset_mutex);
+
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < connector_count; i++)
+ total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
+ if (!total_modes_count)
+ DRM_DEBUG_KMS("No connectors reported connected with modes\n");
+ drm_client_connectors_enabled(connectors, connector_count, enabled);
+
+ if (!drm_client_firmware_config(client, connectors, connector_count, crtcs,
+ modes, offsets, enabled, width, height)) {
+ memset(modes, 0, connector_count * sizeof(*modes));
+ memset(crtcs, 0, connector_count * sizeof(*crtcs));
+ memset(offsets, 0, connector_count * sizeof(*offsets));
+
+ if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
+ offsets, enabled, width, height) &&
+ !drm_client_target_preferred(connectors, connector_count, modes,
+ offsets, enabled, width, height))
+ DRM_ERROR("Unable to find initial modes\n");
+
+ DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
+ width, height);
+
+ drm_client_pick_crtcs(client, connectors, connector_count,
+ crtcs, modes, 0, width, height);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ drm_client_modeset_release(client);
+
+ for (i = 0; i < connector_count; i++) {
+ struct drm_display_mode *mode = modes[i];
+ struct drm_crtc *crtc = crtcs[i];
+ struct drm_client_offset *offset = &offsets[i];
+
+ if (mode && crtc) {
+ struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
+ struct drm_connector *connector = connectors[i];
+
+ DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
+ mode->name, crtc->base.id, offset->x, offset->y);
+
+ if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
+ (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) {
+ ret = -EINVAL;
+ break;
+ }
+
+ modeset->mode = drm_mode_duplicate(dev, mode);
+ drm_connector_get(connector);
+ modeset->connectors[modeset->num_connectors++] = connector;
+ modeset->x = offset->x;
+ modeset->y = offset->y;
+ }
+ }
+
+ mutex_unlock(&client->modeset_mutex);
+out:
+ kfree(crtcs);
+ kfree(modes);
+ kfree(offsets);
+ kfree(enabled);
+free_connectors:
+ for (i = 0; i < connector_count; i++)
+ drm_connector_put(connectors[i]);
+ kfree(connectors);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_client_modeset_probe);
/**
* drm_client_panel_rotation() - Check panel orientation
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 4788f5a28513..6b956b0d2730 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -43,10 +43,6 @@
#include "drm_internal.h"
-struct drm_client_offset {
- int x, y;
-};
-
static bool drm_fbdev_emulation = true;
module_param_named(fbdev_emulation, drm_fbdev_emulation, bool, 0600);
MODULE_PARM_DESC(fbdev_emulation,
@@ -1698,694 +1694,6 @@ void drm_fb_helper_fill_info(struct fb_info *info,
}
EXPORT_SYMBOL(drm_fb_helper_fill_info);
-static struct drm_display_mode *
-drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height)
-{
- struct drm_display_mode *mode;
-
- list_for_each_entry(mode, &connector->modes, head) {
- if (mode->hdisplay > width ||
- mode->vdisplay > height)
- continue;
- if (mode->type & DRM_MODE_TYPE_PREFERRED)
- return mode;
- }
- return NULL;
-}
-
-static struct drm_display_mode *
-drm_connector_pick_cmdline_mode(struct drm_connector *connector)
-{
- struct drm_cmdline_mode *cmdline_mode;
- struct drm_display_mode *mode;
- bool prefer_non_interlace;
-
- cmdline_mode = &connector->cmdline_mode;
- if (cmdline_mode->specified == false)
- return NULL;
-
- /* attempt to find a matching mode in the list of modes
- * we have gotten so far, if not add a CVT mode that conforms
- */
- if (cmdline_mode->rb || cmdline_mode->margins)
- goto create_mode;
-
- prefer_non_interlace = !cmdline_mode->interlace;
-again:
- list_for_each_entry(mode, &connector->modes, head) {
- /* check width/height */
- if (mode->hdisplay != cmdline_mode->xres ||
- mode->vdisplay != cmdline_mode->yres)
- continue;
-
- if (cmdline_mode->refresh_specified) {
- if (mode->vrefresh != cmdline_mode->refresh)
- continue;
- }
-
- if (cmdline_mode->interlace) {
- if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
- continue;
- } else if (prefer_non_interlace) {
- if (mode->flags & DRM_MODE_FLAG_INTERLACE)
- continue;
- }
- return mode;
- }
-
- if (prefer_non_interlace) {
- prefer_non_interlace = false;
- goto again;
- }
-
-create_mode:
- mode = drm_mode_create_from_cmdline_mode(connector->dev, cmdline_mode);
- list_add(&mode->head, &connector->modes);
-
- return mode;
-}
-
-static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
-{
- bool enable;
-
- if (connector->display_info.non_desktop)
- return false;
-
- if (strict)
- enable = connector->status == connector_status_connected;
- else
- enable = connector->status != connector_status_disconnected;
-
- return enable;
-}
-
-static void drm_client_connectors_enabled(struct drm_connector **connectors,
- unsigned int connector_count,
- bool *enabled)
-{
- bool any_enabled = false;
- struct drm_connector *connector;
- int i = 0;
-
- for (i = 0; i < connector_count; i++) {
- connector = connectors[i];
- enabled[i] = drm_connector_enabled(connector, true);
- DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
- connector->display_info.non_desktop ? "non desktop" : enabled[i] ? "yes" : "no");
-
- any_enabled |= enabled[i];
- }
-
- if (any_enabled)
- return;
-
- for (i = 0; i < connector_count; i++)
- enabled[i] = drm_connector_enabled(connectors[i], false);
-}
-
-static bool drm_client_target_cloned(struct drm_device *dev,
- struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_client_offset *offsets,
- bool *enabled, int width, int height)
-{
- int count, i, j;
- bool can_clone = false;
- struct drm_display_mode *dmt_mode, *mode;
-
- /* only contemplate cloning in the single crtc case */
- if (dev->mode_config.num_crtc > 1)
- return false;
-
- count = 0;
- for (i = 0; i < connector_count; i++) {
- if (enabled[i])
- count++;
- }
-
- /* only contemplate cloning if more than one connector is enabled */
- if (count <= 1)
- return false;
-
- /* check the command line or if nothing common pick 1024x768 */
- can_clone = true;
- for (i = 0; i < connector_count; i++) {
- if (!enabled[i])
- continue;
- modes[i] = drm_connector_pick_cmdline_mode(connectors[i]);
- if (!modes[i]) {
- can_clone = false;
- break;
- }
- for (j = 0; j < i; j++) {
- if (!enabled[j])
- continue;
- if (!drm_mode_match(modes[j], modes[i],
- DRM_MODE_MATCH_TIMINGS |
- DRM_MODE_MATCH_CLOCK |
- DRM_MODE_MATCH_FLAGS |
- DRM_MODE_MATCH_3D_FLAGS))
- can_clone = false;
- }
- }
-
- if (can_clone) {
- DRM_DEBUG_KMS("can clone using command line\n");
- return true;
- }
-
- /* try and find a 1024x768 mode on each connector */
- can_clone = true;
- dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
-
- for (i = 0; i < connector_count; i++) {
- if (!enabled[i])
- continue;
-
- list_for_each_entry(mode, &connectors[i]->modes, head) {
- if (drm_mode_match(mode, dmt_mode,
- DRM_MODE_MATCH_TIMINGS |
- DRM_MODE_MATCH_CLOCK |
- DRM_MODE_MATCH_FLAGS |
- DRM_MODE_MATCH_3D_FLAGS))
- modes[i] = mode;
- }
- if (!modes[i])
- can_clone = false;
- }
-
- if (can_clone) {
- DRM_DEBUG_KMS("can clone using 1024x768\n");
- return true;
- }
- DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
- return false;
-}
-
-static int drm_client_get_tile_offsets(struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_client_offset *offsets,
- int idx,
- int h_idx, int v_idx)
-{
- struct drm_connector *connector;
- int i;
- int hoffset = 0, voffset = 0;
-
- for (i = 0; i < connector_count; i++) {
- connector = connectors[i];
- if (!connector->has_tile)
- continue;
-
- if (!modes[i] && (h_idx || v_idx)) {
- DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
- connector->base.id);
- continue;
- }
- if (connector->tile_h_loc < h_idx)
- hoffset += modes[i]->hdisplay;
-
- if (connector->tile_v_loc < v_idx)
- voffset += modes[i]->vdisplay;
- }
- offsets[idx].x = hoffset;
- offsets[idx].y = voffset;
- DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx);
- return 0;
-}
-
-static bool drm_client_target_preferred(struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_client_offset *offsets,
- bool *enabled, int width, int height)
-{
- const u64 mask = BIT_ULL(connector_count) - 1;
- struct drm_connector *connector;
- u64 conn_configured = 0;
- int tile_pass = 0;
- int i;
-
-retry:
- for (i = 0; i < connector_count; i++) {
- connector = connectors[i];
-
- if (conn_configured & BIT_ULL(i))
- continue;
-
- if (enabled[i] == false) {
- conn_configured |= BIT_ULL(i);
- continue;
- }
-
- /* first pass over all the untiled connectors */
- if (tile_pass == 0 && connector->has_tile)
- continue;
-
- if (tile_pass == 1) {
- if (connector->tile_h_loc != 0 ||
- connector->tile_v_loc != 0)
- continue;
-
- } else {
- if (connector->tile_h_loc != tile_pass - 1 &&
- connector->tile_v_loc != tile_pass - 1)
- /* if this tile_pass doesn't cover any of the tiles - keep going */
- continue;
-
- /*
- * find the tile offsets for this pass - need to find
- * all tiles left and above
- */
- drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i,
- connector->tile_h_loc, connector->tile_v_loc);
- }
- DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
- connector->base.id);
-
- /* got for command line mode first */
- modes[i] = drm_connector_pick_cmdline_mode(connector);
- if (!modes[i]) {
- DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
- connector->base.id, connector->tile_group ? connector->tile_group->id : 0);
- modes[i] = drm_connector_has_preferred_mode(connector, width, height);
- }
- /* No preferred modes, pick one off the list */
- if (!modes[i] && !list_empty(&connector->modes)) {
- list_for_each_entry(modes[i], &connector->modes, head)
- break;
- }
- DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
- "none");
- conn_configured |= BIT_ULL(i);
- }
-
- if ((conn_configured & mask) != mask) {
- tile_pass++;
- goto retry;
- }
- return true;
-}
-
-static bool connector_has_possible_crtc(struct drm_connector *connector,
- struct drm_crtc *crtc)
-{
- struct drm_encoder *encoder;
- int i;
-
- drm_connector_for_each_possible_encoder(connector, encoder, i) {
- if (encoder->possible_crtcs & drm_crtc_mask(crtc))
- return true;
- }
-
- return false;
-}
-
-static int drm_client_pick_crtcs(struct drm_client_dev *client,
- struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_crtc **best_crtcs,
- struct drm_display_mode **modes,
- int n, int width, int height)
-{
- struct drm_device *dev = client->dev;
- struct drm_connector *connector;
- int my_score, best_score, score;
- struct drm_crtc **crtcs, *crtc;
- struct drm_mode_set *modeset;
- int o;
-
- if (n == connector_count)
- return 0;
-
- connector = connectors[n];
-
- best_crtcs[n] = NULL;
- best_score = drm_client_pick_crtcs(client, connectors, connector_count,
- best_crtcs, modes, n + 1, width, height);
- if (modes[n] == NULL)
- return best_score;
-
- crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
- if (!crtcs)
- return best_score;
-
- my_score = 1;
- if (connector->status == connector_status_connected)
- my_score++;
- if (connector->cmdline_mode.specified)
- my_score++;
- if (drm_connector_has_preferred_mode(connector, width, height))
- my_score++;
-
- /*
- * select a crtc for this connector and then attempt to configure
- * remaining connectors
- */
- drm_client_for_each_modeset(modeset, client) {
- crtc = modeset->crtc;
-
- if (!connector_has_possible_crtc(connector, crtc))
- continue;
-
- for (o = 0; o < n; o++)
- if (best_crtcs[o] == crtc)
- break;
-
- if (o < n) {
- /* ignore cloning unless only a single crtc */
- if (dev->mode_config.num_crtc > 1)
- continue;
-
- if (!drm_mode_equal(modes[o], modes[n]))
- continue;
- }
-
- crtcs[n] = crtc;
- memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
- score = my_score + drm_client_pick_crtcs(client, connectors, connector_count,
- crtcs, modes, n + 1, width, height);
- if (score > best_score) {
- best_score = score;
- memcpy(best_crtcs, crtcs, connector_count * sizeof(*crtcs));
- }
- }
-
- kfree(crtcs);
- return best_score;
-}
-
-/* Try to read the BIOS display configuration and use it for the initial config */
-static bool drm_client_firmware_config(struct drm_client_dev *client,
- struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_crtc **crtcs,
- struct drm_display_mode **modes,
- struct drm_client_offset *offsets,
- bool *enabled, int width, int height)
-{
- unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
- unsigned long conn_configured, conn_seq, mask;
- struct drm_device *dev = client->dev;
- int i, j;
- bool *save_enabled;
- bool fallback = true, ret = true;
- int num_connectors_enabled = 0;
- int num_connectors_detected = 0;
- struct drm_modeset_acquire_ctx ctx;
-
- if (!drm_drv_uses_atomic_modeset(dev))
- return false;
-
- save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL);
- if (!save_enabled)
- return false;
-
- drm_modeset_acquire_init(&ctx, 0);
-
- while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
- drm_modeset_backoff(&ctx);
-
- memcpy(save_enabled, enabled, count);
- mask = GENMASK(count - 1, 0);
- conn_configured = 0;
-retry:
- conn_seq = conn_configured;
- for (i = 0; i < count; i++) {
- struct drm_connector *connector;
- struct drm_encoder *encoder;
- struct drm_crtc *new_crtc;
-
- connector = connectors[i];
-
- if (conn_configured & BIT(i))
- continue;
-
- if (conn_seq == 0 && !connector->has_tile)
- continue;
-
- if (connector->status == connector_status_connected)
- num_connectors_detected++;
-
- if (!enabled[i]) {
- DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
- connector->name);
- conn_configured |= BIT(i);
- continue;
- }
-
- if (connector->force == DRM_FORCE_OFF) {
- DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n",
- connector->name);
- enabled[i] = false;
- continue;
- }
-
- encoder = connector->state->best_encoder;
- if (!encoder || WARN_ON(!connector->state->crtc)) {
- if (connector->force > DRM_FORCE_OFF)
- goto bail;
-
- DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
- connector->name);
- enabled[i] = false;
- conn_configured |= BIT(i);
- continue;
- }
-
- num_connectors_enabled++;
-
- new_crtc = connector->state->crtc;
-
- /*
- * Make sure we're not trying to drive multiple connectors
- * with a single CRTC, since our cloning support may not
- * match the BIOS.
- */
- for (j = 0; j < count; j++) {
- if (crtcs[j] == new_crtc) {
- DRM_DEBUG_KMS("fallback: cloned configuration\n");
- goto bail;
- }
- }
-
- DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n",
- connector->name);
-
- /* go for command line mode first */
- modes[i] = drm_connector_pick_cmdline_mode(connector);
-
- /* try for preferred next */
- if (!modes[i]) {
- DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
- connector->name, connector->has_tile);
- modes[i] = drm_connector_has_preferred_mode(connector, width, height);
- }
-
- /* No preferred mode marked by the EDID? Are there any modes? */
- if (!modes[i] && !list_empty(&connector->modes)) {
- DRM_DEBUG_KMS("using first mode listed on connector %s\n",
- connector->name);
- modes[i] = list_first_entry(&connector->modes,
- struct drm_display_mode,
- head);
- }
-
- /* last resort: use current mode */
- if (!modes[i]) {
- /*
- * IMPORTANT: We want to use the adjusted mode (i.e.
- * after the panel fitter upscaling) as the initial
- * config, not the input mode, which is what crtc->mode
- * usually contains. But since our current
- * code puts a mode derived from the post-pfit timings
- * into crtc->mode this works out correctly.
- *
- * This is crtc->mode and not crtc->state->mode for the
- * fastboot check to work correctly.
- */
- DRM_DEBUG_KMS("looking for current mode on connector %s\n",
- connector->name);
- modes[i] = &connector->state->crtc->mode;
- }
- crtcs[i] = new_crtc;
-
- DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",
- connector->name,
- connector->state->crtc->base.id,
- connector->state->crtc->name,
- modes[i]->hdisplay, modes[i]->vdisplay,
- modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : "");
-
- fallback = false;
- conn_configured |= BIT(i);
- }
-
- if ((conn_configured & mask) != mask && conn_configured != conn_seq)
- goto retry;
-
- /*
- * If the BIOS didn't enable everything it could, fall back to have the
- * same user experiencing of lighting up as much as possible like the
- * fbdev helper library.
- */
- if (num_connectors_enabled != num_connectors_detected &&
- num_connectors_enabled < dev->mode_config.num_crtc) {
- DRM_DEBUG_KMS("fallback: Not all outputs enabled\n");
- DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled,
- num_connectors_detected);
- fallback = true;
- }
-
- if (fallback) {
-bail:
- DRM_DEBUG_KMS("Not using firmware configuration\n");
- memcpy(enabled, save_enabled, count);
- ret = false;
- }
-
- drm_modeset_drop_locks(&ctx);
- drm_modeset_acquire_fini(&ctx);
-
- kfree(save_enabled);
- return ret;
-}
-
-/**
- * drm_client_modeset_probe() - Probe for displays
- * @client: DRM client
- * @width: Maximum display mode width (optional)
- * @height: Maximum display mode height (optional)
- *
- * This function sets up display pipelines for enabled connectors and stores the
- * config in the client's modeset array.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height)
-{
- struct drm_connector *connector, **connectors = NULL;
- struct drm_connector_list_iter conn_iter;
- struct drm_device *dev = client->dev;
- unsigned int total_modes_count = 0;
- struct drm_client_offset *offsets;
- unsigned int connector_count = 0;
- struct drm_display_mode **modes;
- struct drm_crtc **crtcs;
- int i, ret = 0;
- bool *enabled;
-
- DRM_DEBUG_KMS("\n");
-
- if (!width)
- width = dev->mode_config.max_width;
- if (!height)
- height = dev->mode_config.max_height;
-
- drm_connector_list_iter_begin(dev, &conn_iter);
- drm_client_for_each_connector_iter(connector, &conn_iter) {
- struct drm_connector **tmp;
-
- tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
- if (!tmp) {
- ret = -ENOMEM;
- goto free_connectors;
- }
-
- connectors = tmp;
- drm_connector_get(connector);
- connectors[connector_count++] = connector;
- }
- drm_connector_list_iter_end(&conn_iter);
-
- if (!connector_count)
- return 0;
-
- crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
- modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
- offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
- enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
- if (!crtcs || !modes || !enabled || !offsets) {
- DRM_ERROR("Memory allocation failed\n");
- ret = -ENOMEM;
- goto out;
- }
-
- mutex_lock(&client->modeset_mutex);
-
- mutex_lock(&dev->mode_config.mutex);
- for (i = 0; i < connector_count; i++)
- total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
- if (!total_modes_count)
- DRM_DEBUG_KMS("No connectors reported connected with modes\n");
- drm_client_connectors_enabled(connectors, connector_count, enabled);
-
- if (!drm_client_firmware_config(client, connectors, connector_count, crtcs,
- modes, offsets, enabled, width, height)) {
- memset(modes, 0, connector_count * sizeof(*modes));
- memset(crtcs, 0, connector_count * sizeof(*crtcs));
- memset(offsets, 0, connector_count * sizeof(*offsets));
-
- if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
- offsets, enabled, width, height) &&
- !drm_client_target_preferred(connectors, connector_count, modes,
- offsets, enabled, width, height))
- DRM_ERROR("Unable to find initial modes\n");
-
- DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
- width, height);
-
- drm_client_pick_crtcs(client, connectors, connector_count,
- crtcs, modes, 0, width, height);
- }
- mutex_unlock(&dev->mode_config.mutex);
-
- drm_client_modeset_release(client);
-
- for (i = 0; i < connector_count; i++) {
- struct drm_display_mode *mode = modes[i];
- struct drm_crtc *crtc = crtcs[i];
- struct drm_client_offset *offset = &offsets[i];
-
- if (mode && crtc) {
- struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
- struct drm_connector *connector = connectors[i];
-
- DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
- mode->name, crtc->base.id, offset->x, offset->y);
-
- if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
- (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) {
- ret = -EINVAL;
- break;
- }
-
- modeset->mode = drm_mode_duplicate(dev, mode);
- drm_connector_get(connector);
- modeset->connectors[modeset->num_connectors++] = connector;
- modeset->x = offset->x;
- modeset->y = offset->y;
- }
- }
-
- mutex_unlock(&client->modeset_mutex);
-out:
- kfree(crtcs);
- kfree(modes);
- kfree(offsets);
- kfree(enabled);
-free_connectors:
- for (i = 0; i < connector_count; i++)
- drm_connector_put(connectors[i]);
- kfree(connectors);
-
- return ret;
-}
-
/*
* This is a continuation of drm_setup_crtcs() that sets up anything related
* to the framebuffer. During initialization, drm_setup_crtcs() is called before
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index 8d94880bbe25..f2d5ed745733 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -18,8 +18,6 @@ struct drm_gem_object;
struct drm_minor;
struct module;
-#define DRM_CLIENT_MAX_CLONED_CONNECTORS 8
-
/**
* struct drm_client_funcs - DRM client callbacks
*/
@@ -154,8 +152,7 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
int drm_client_modeset_create(struct drm_client_dev *client);
void drm_client_modeset_free(struct drm_client_dev *client);
-void drm_client_modeset_release(struct drm_client_dev *client);
-struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc);
+int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height);
bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
int drm_client_modeset_commit_force(struct drm_client_dev *client);
int drm_client_modeset_commit(struct drm_client_dev *client);
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* [PATCH v6 8/8] drm/client: Hack: Add bootsplash example
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (6 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 7/8] drm/fb-helper: Move " Noralf Trønnes
@ 2019-05-23 13:44 ` Noralf Trønnes
2019-05-23 16:24 ` ✗ Fi.CI.BAT: failure for drm/fb-helper: Move modesetting code to drm_client (rev7) Patchwork
2019-05-23 16:53 ` [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Sam Ravnborg
9 siblings, 0 replies; 15+ messages in thread
From: Noralf Trønnes @ 2019-05-23 13:44 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx
An example to showcase the client API.
TODO:
- A bootsplash client needs a way to tell drm_fb_helper to stay away,
otherwise it will chime in on setup and hotplug.
Most DRM drivers register fbdev before calling drm_dev_register() (the
generic emulation is an exception). This have to be reversed for
bootsplash to fend off fbdev.
- Probably need some way to determine which is the primary display/device
on multi DRM device systems.
- Maybe do handover from early/simple DRM driver
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
---
drivers/gpu/drm/Kconfig | 5 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/drm_bootsplash.c | 358 +++++++++++++++++++++++++++++++
drivers/gpu/drm/drm_client.c | 7 +
drivers/gpu/drm/drm_drv.c | 4 +
include/drm/drm_client.h | 3 +
6 files changed, 378 insertions(+)
create mode 100644 drivers/gpu/drm/drm_bootsplash.c
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index a461f078a0dd..aede0de0c9d9 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -65,6 +65,11 @@ config DRM_DEBUG_SELFTEST
If in doubt, say "N".
+config DRM_CLIENT_BOOTSPLASH
+ bool "DRM Bootsplash"
+ help
+ DRM Bootsplash
+
config DRM_KMS_HELPER
tristate
depends on DRM
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 9ead6436fb87..78573ed02a4e 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -31,6 +31,7 @@ drm-$(CONFIG_OF) += drm_of.o
drm-$(CONFIG_AGP) += drm_agpsupport.o
drm-$(CONFIG_DEBUG_FS) += drm_debugfs.o drm_debugfs_crc.o
drm-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
+drm-$(CONFIG_DRM_CLIENT_BOOTSPLASH) += drm_bootsplash.o
drm_vram_helper-y := drm_gem_vram_helper.o \
drm_vram_helper_common.o \
diff --git a/drivers/gpu/drm/drm_bootsplash.c b/drivers/gpu/drm/drm_bootsplash.c
new file mode 100644
index 000000000000..f58ee19e268f
--- /dev/null
+++ b/drivers/gpu/drm/drm_bootsplash.c
@@ -0,0 +1,358 @@
+/* DRM internal client example */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/keyboard.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#include <drm/drm_client.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_print.h>
+
+// drm_lastclose()
+#include "drm_internal.h"
+
+static bool drm_bootsplash_enabled = true;
+module_param_named(bootsplash_enabled, drm_bootsplash_enabled, bool, 0600);
+MODULE_PARM_DESC(bootsplash_enabled, "Enable bootsplash client [default=true]");
+
+struct drm_bootsplash {
+ struct drm_client_dev client;
+ struct mutex lock;
+ struct work_struct worker;
+ struct drm_client_buffer *buffers[2];
+ bool started;
+ bool stop;
+};
+
+static bool drm_bootsplash_key_pressed;
+
+static int drm_bootsplash_keyboard_notifier_call(struct notifier_block *blk,
+ unsigned long code, void *_param)
+{
+ /* Any key is good */
+ drm_bootsplash_key_pressed = true;
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block drm_bootsplash_keyboard_notifier_block = {
+ .notifier_call = drm_bootsplash_keyboard_notifier_call,
+};
+
+static void drm_bootsplash_buffer_delete(struct drm_bootsplash *splash)
+{
+ unsigned int i;
+
+ for (i = 0; i < 2; i++) {
+ if (!IS_ERR_OR_NULL(splash->buffers[i]))
+ drm_client_framebuffer_delete(splash->buffers[i]);
+ splash->buffers[i] = NULL;
+ }
+}
+
+static int drm_bootsplash_buffer_create(struct drm_bootsplash *splash, u32 width, u32 height)
+{
+ unsigned int i;
+
+ for (i = 0; i < 2; i++) {
+ splash->buffers[i] = drm_client_framebuffer_create(&splash->client, width, height, DRM_FORMAT_XRGB8888);
+ if (IS_ERR(splash->buffers[i])) {
+ drm_bootsplash_buffer_delete(splash);
+ return PTR_ERR(splash->buffers[i]);
+ }
+ }
+
+ return 0;
+}
+
+static int drm_bootsplash_display_probe(struct drm_bootsplash *splash)
+{
+ struct drm_client_dev *client = &splash->client;
+ unsigned int width = 0, height = 0;
+ unsigned int num_non_tiled = 0, i;
+ unsigned int modeset_mask = 0;
+ struct drm_mode_set *modeset;
+ bool tiled = false;
+ int ret;
+
+ ret = drm_client_modeset_probe(client, 0, 0);
+ if (ret)
+ return ret;
+
+ mutex_lock(&client->modeset_mutex);
+
+ drm_client_for_each_modeset(modeset, client) {
+ if (!modeset->mode)
+ continue;
+
+ if (modeset->connectors[0]->has_tile)
+ tiled = true;
+ else
+ num_non_tiled++;
+ }
+
+ if (!tiled && !num_non_tiled) {
+ drm_bootsplash_buffer_delete(splash);
+ ret = -ENOENT;
+ goto out;
+ }
+
+ /* Assume only one tiled monitor is possible */
+ if (tiled) {
+ int hdisplay = 0, vdisplay = 0;
+
+ i = 0;
+ drm_client_for_each_modeset(modeset, client) {
+ i++;
+ if (!modeset->connectors[0]->has_tile)
+ continue;
+
+ if (!modeset->y)
+ hdisplay += modeset->mode->hdisplay;
+ if (!modeset->x)
+ vdisplay += modeset->mode->vdisplay;
+ modeset_mask |= BIT(i - 1);
+ }
+
+ width = hdisplay;
+ height = vdisplay;
+
+ goto trim;
+ }
+
+ /* The rest have one display (maybe cloned) per modeset, pick the largest */
+ i = 0;
+ drm_client_for_each_modeset(modeset, client) {
+ i++;
+ if (!modeset->mode || modeset->connectors[0]->has_tile)
+ continue;
+
+ if (modeset->mode->hdisplay * modeset->mode->vdisplay > width * height) {
+ width = modeset->mode->hdisplay;
+ height = modeset->mode->vdisplay;
+ modeset_mask = BIT(i - 1);
+ }
+ }
+
+trim:
+ /* Remove unused modesets (warning in __drm_atomic_helper_set_config()) */
+ i = 0;
+ drm_client_for_each_modeset(modeset, client) {
+ unsigned int j;
+
+ if (modeset_mask & BIT(i++))
+ continue;
+ drm_mode_destroy(client->dev, modeset->mode);
+ modeset->mode = NULL;
+
+ for (j = 0; j < modeset->num_connectors; j++) {
+ drm_connector_put(modeset->connectors[j]);
+ modeset->connectors[j] = NULL;
+ }
+ modeset->num_connectors = 0;
+ }
+
+ if (!splash->buffers[0] ||
+ splash->buffers[0]->fb->width != width ||
+ splash->buffers[0]->fb->height != height) {
+ drm_bootsplash_buffer_delete(splash);
+ ret = drm_bootsplash_buffer_create(splash, width, height);
+ }
+
+out:
+ mutex_unlock(&client->modeset_mutex);
+
+ return ret;
+}
+
+static int drm_bootsplash_display_commit_buffer(struct drm_bootsplash *splash, unsigned int num)
+{
+ struct drm_client_dev *client = &splash->client;
+ struct drm_mode_set *modeset;
+
+ mutex_lock(&client->modeset_mutex);
+ drm_client_for_each_modeset(modeset, client) {
+ if (modeset->mode)
+ modeset->fb = splash->buffers[num]->fb;
+ }
+ mutex_unlock(&client->modeset_mutex);
+
+ return drm_client_modeset_commit(client);
+}
+
+static u32 drm_bootsplash_color_table[3] = {
+ 0x00ff0000, 0x0000ff00, 0x000000ff,
+};
+
+/* Draw a box with changing colors */
+static void drm_bootsplash_draw_box(struct drm_client_buffer *buffer, unsigned int sequence)
+{
+ unsigned int width = buffer->fb->width;
+ unsigned int height = buffer->fb->height;
+ unsigned int x, y;
+ u32 *pix;
+
+ pix = buffer->vaddr;
+ pix += ((height / 2) - 50) * width;
+ pix += (width / 2) - 50;
+
+ for (y = 0; y < 100; y++) {
+ for (x = 0; x < 100; x++)
+ *pix++ = drm_bootsplash_color_table[sequence];
+ pix += width - 100;
+ }
+}
+
+static int drm_bootsplash_draw(struct drm_bootsplash *splash, unsigned int sequence, unsigned int buffer_num)
+{
+ if (!splash->buffers[buffer_num])
+ return -ENOENT;
+
+ DRM_DEBUG_KMS("draw: buffer_num=%u, sequence=%u\n", buffer_num, sequence);
+
+ drm_bootsplash_draw_box(splash->buffers[buffer_num], sequence);
+
+ return drm_bootsplash_display_commit_buffer(splash, buffer_num);
+}
+
+static void drm_bootsplash_worker(struct work_struct *work)
+{
+ struct drm_bootsplash *splash = container_of(work, struct drm_bootsplash, worker);
+ struct drm_client_dev *client = &splash->client;
+ struct drm_device *dev = client->dev;
+ unsigned int buffer_num = 0, sequence = 0;
+ bool stop = false;
+ int ret = 0;
+
+ while (!drm_bootsplash_key_pressed) {
+ mutex_lock(&splash->lock);
+
+ stop = splash->stop;
+
+ buffer_num = !buffer_num;
+
+ ret = drm_bootsplash_draw(splash, sequence, buffer_num);
+
+ mutex_unlock(&splash->lock);
+
+ if (stop || ret == -ENOENT || ret == -EBUSY)
+ break;
+
+ if (++sequence == 3)
+ sequence = 0;
+
+ msleep(500);
+ }
+
+ /* Restore fbdev (or other) on key press. */
+ /* TODO: Check if it's OK to call drm_lastclose here. */
+ if (drm_bootsplash_key_pressed && !splash->stop)
+ drm_lastclose(dev);
+
+ drm_bootsplash_buffer_delete(splash);
+
+ DRM_DEV_DEBUG_KMS(dev->dev, "Bootsplash has stopped (key=%u stop=%u, ret=%d).\n",
+ drm_bootsplash_key_pressed, splash->stop, ret);
+}
+
+static int drm_bootsplash_client_hotplug(struct drm_client_dev *client)
+{
+ struct drm_bootsplash *splash = container_of(client, struct drm_bootsplash, client);
+ int ret = 0;
+
+ if (drm_bootsplash_key_pressed)
+ return 0;
+
+ mutex_lock(&splash->lock);
+
+ if (splash->stop)
+ goto out_unlock;
+
+ ret = drm_bootsplash_display_probe(splash);
+ if (ret < 0) {
+ if (splash->started && ret == -ENOENT)
+ splash->stop = true;
+ goto out_unlock;
+ }
+
+ /*
+ * TODO: Deal with rotated panels, might have to sw rotate
+ if (drm_client_panel_rotation(...))
+ */
+
+ if (!splash->started) {
+ splash->started = true;
+ schedule_work(&splash->worker);
+ }
+
+out_unlock:
+ mutex_unlock(&splash->lock);
+
+ return ret;
+}
+
+static void drm_bootsplash_client_unregister(struct drm_client_dev *client)
+{
+ struct drm_bootsplash *splash = container_of(client, struct drm_bootsplash, client);
+
+ DRM_DEBUG_KMS("%s: IN\n", __func__);
+
+ mutex_lock(&splash->lock);
+ splash->stop = true;
+ mutex_unlock(&splash->lock);
+
+ flush_work(&splash->worker);
+
+ drm_client_release(client);
+ kfree(splash);
+
+ unregister_keyboard_notifier(&drm_bootsplash_keyboard_notifier_block);
+
+ DRM_DEBUG_KMS("%s: OUT\n", __func__);
+}
+
+static const struct drm_client_funcs drm_bootsplash_client_funcs = {
+ .owner = THIS_MODULE,
+ .unregister = drm_bootsplash_client_unregister,
+ .hotplug = drm_bootsplash_client_hotplug,
+};
+
+void drm_bootsplash_client_register(struct drm_device *dev)
+{
+ struct drm_bootsplash *splash;
+ int ret;
+
+ if (!drm_bootsplash_enabled)
+ return;
+
+ splash = kzalloc(sizeof(*splash), GFP_KERNEL);
+ if (!splash)
+ return;
+
+ ret = drm_client_init(dev, &splash->client, "bootsplash", &drm_bootsplash_client_funcs);
+ if (ret) {
+ DRM_DEV_ERROR(dev->dev, "Failed to create client, ret=%d\n", ret);
+ kfree(splash);
+ return;
+ }
+
+ /* For this simple example only allow the first */
+ drm_bootsplash_enabled = false;
+
+ mutex_init(&splash->lock);
+
+ INIT_WORK(&splash->worker, drm_bootsplash_worker);
+
+ register_keyboard_notifier(&drm_bootsplash_keyboard_notifier_block);
+
+ drm_bootsplash_client_hotplug(&splash->client);
+
+ drm_client_register(&splash->client);
+}
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index 77aa1cf09caa..bf7badcde2f0 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -161,6 +161,13 @@ void drm_client_release(struct drm_client_dev *client)
}
EXPORT_SYMBOL(drm_client_release);
+void drm_client_dev_register(struct drm_device *dev)
+{
+#if CONFIG_DRM_CLIENT_BOOTSPLASH
+ drm_bootsplash_client_register(dev);
+#endif
+}
+
void drm_client_dev_unregister(struct drm_device *dev)
{
struct drm_client_dev *client, *tmp;
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 862621494a93..317b8cf67980 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -1014,6 +1014,10 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
drm_minor_unregister(dev, DRM_MINOR_RENDER);
out_unlock:
mutex_unlock(&drm_global_mutex);
+
+ if (!ret)
+ drm_client_dev_register(dev);
+
return ret;
}
EXPORT_SYMBOL(drm_dev_register);
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index f2d5ed745733..e9eb770093fb 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -107,6 +107,7 @@ int drm_client_init(struct drm_device *dev, struct drm_client_dev *client,
void drm_client_release(struct drm_client_dev *client);
void drm_client_register(struct drm_client_dev *client);
+void drm_client_dev_register(struct drm_device *dev);
void drm_client_dev_unregister(struct drm_device *dev);
void drm_client_dev_hotplug(struct drm_device *dev);
void drm_client_dev_restore(struct drm_device *dev);
@@ -183,4 +184,6 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
int drm_client_debugfs_init(struct drm_minor *minor);
+void drm_bootsplash_client_register(struct drm_device *dev);
+
#endif
--
2.20.1
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^ permalink raw reply related [flat|nested] 15+ messages in thread* ✗ Fi.CI.BAT: failure for drm/fb-helper: Move modesetting code to drm_client (rev7)
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (7 preceding siblings ...)
2019-05-23 13:44 ` [PATCH v6 8/8] drm/client: Hack: Add bootsplash example Noralf Trønnes
@ 2019-05-23 16:24 ` Patchwork
2019-05-23 16:53 ` [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Sam Ravnborg
9 siblings, 0 replies; 15+ messages in thread
From: Patchwork @ 2019-05-23 16:24 UTC (permalink / raw)
To: Noralf Trønnes; +Cc: intel-gfx
== Series Details ==
Series: drm/fb-helper: Move modesetting code to drm_client (rev7)
URL : https://patchwork.freedesktop.org/series/58597/
State : failure
== Summary ==
Applying: drm/atomic: Move __drm_atomic_helper_disable_plane/set_config()
Applying: drm/fb-helper: Remove drm_fb_helper_crtc
Using index info to reconstruct a base tree...
M drivers/gpu/drm/Makefile
Falling back to patching base and 3-way merge...
Auto-merging drivers/gpu/drm/Makefile
CONFLICT (content): Merge conflict in drivers/gpu/drm/Makefile
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch' to see the failed patch
Patch failed at 0002 drm/fb-helper: Remove drm_fb_helper_crtc
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client
2019-05-23 13:44 [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Noralf Trønnes
` (8 preceding siblings ...)
2019-05-23 16:24 ` ✗ Fi.CI.BAT: failure for drm/fb-helper: Move modesetting code to drm_client (rev7) Patchwork
@ 2019-05-23 16:53 ` Sam Ravnborg
2019-05-24 12:10 ` Gerd Hoffmann
2019-05-24 15:18 ` Linus Walleij
9 siblings, 2 replies; 15+ messages in thread
From: Sam Ravnborg @ 2019-05-23 16:53 UTC (permalink / raw)
To: Noralf Trønnes, Linus Walleij, Gerd Hoffmann; +Cc: intel-gfx, dri-devel
Hi Linus, Gerd.
> This moves the modesetting code from drm_fb_helper to drm_client so it
> can be shared by all internal clients.
Could one of you take a look at this series.
Daniel already ack'ed the series on irc, but an extra pair of eyes
is never bad.
For my part I have been through them all, but I still do not have
the full picture of the DRM subsystem so my review may not
suffice.
Sam
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^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client
2019-05-23 16:53 ` [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Sam Ravnborg
@ 2019-05-24 12:10 ` Gerd Hoffmann
2019-05-24 15:18 ` Linus Walleij
1 sibling, 0 replies; 15+ messages in thread
From: Gerd Hoffmann @ 2019-05-24 12:10 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: Linus Walleij, Noralf Trønnes, intel-gfx, dri-devel
On Thu, May 23, 2019 at 06:53:20PM +0200, Sam Ravnborg wrote:
> Hi Linus, Gerd.
>
> > This moves the modesetting code from drm_fb_helper to drm_client so it
> > can be shared by all internal clients.
>
> Could one of you take a look at this series.
> Daniel already ack'ed the series on irc, but an extra pair of eyes
> is never bad.
>
> For my part I have been through them all, but I still do not have
> the full picture of the DRM subsystem so my review may not
> suffice.
Looks sane to me overall. Tried to give the series a spin in qemu, but:
ERROR: "drm_client_panel_rotation" [drivers/gpu/drm/drm_kms_helper.ko]
undefined!
EXPORT_SYMBOL() missing?
cheers,
Gerd
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client
2019-05-23 16:53 ` [PATCH v6 0/8] drm/fb-helper: Move modesetting code to drm_client Sam Ravnborg
2019-05-24 12:10 ` Gerd Hoffmann
@ 2019-05-24 15:18 ` Linus Walleij
2019-05-24 15:26 ` Sam Ravnborg
1 sibling, 1 reply; 15+ messages in thread
From: Linus Walleij @ 2019-05-24 15:18 UTC (permalink / raw)
To: Sam Ravnborg
Cc: intel-gfx, Noralf Trønnes, Gerd Hoffmann,
open list:DRM PANEL DRIVERS
On Thu, May 23, 2019 at 6:53 PM Sam Ravnborg <sam@ravnborg.org> wrote:
> Could one of you take a look at this series.
> Daniel already ack'ed the series on irc, but an extra pair of eyes
> is never bad.
I would if I had a chance of understanding them. I am still pretty
novice with DRM so what I do is trace down to the calls I
need and understand the small pieces I use.
Yours,
Linus Walleij
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