option. Drivers that support the default clients should
select DRM_CLIENT_SELECTION instead.
-config DRM_CLIENT_LIB
- tristate
- depends on DRM
- select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
- select FB_CORE if DRM_FBDEV_EMULATION
- help
- This option enables the DRM client library and selects all
- modules and components according to the enabled clients.
-
-config DRM_CLIENT_SELECTION
- tristate
- depends on DRM
- select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION
- help
- Drivers that support in-kernel DRM clients have to select this
- option.
-
-config DRM_CLIENT_SETUP
- bool
- depends on DRM_CLIENT_SELECTION
- help
- Enables the DRM client selection. DRM drivers that support the
- default clients should select DRM_CLIENT_SELECTION instead.
-
-menu "Supported DRM clients"
- depends on DRM_CLIENT_SELECTION
-
-config DRM_FBDEV_EMULATION
- bool "Enable legacy fbdev support for your modesetting driver"
- depends on DRM_CLIENT_SELECTION
- select DRM_CLIENT
- select DRM_CLIENT_SETUP
- select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
- default FB
- help
- Choose this option if you have a need for the legacy fbdev
- support. Note that this support also provides the linux console
- support on top of your modesetting driver.
-
- If in doubt, say "Y".
-
-config DRM_FBDEV_OVERALLOC
- int "Overallocation of the fbdev buffer"
- depends on DRM_FBDEV_EMULATION
- default 100
- help
- Defines the fbdev buffer overallocation in percent. Default
- is 100. Typical values for double buffering will be 200,
- triple buffering 300.
-
-config DRM_FBDEV_LEAK_PHYS_SMEM
- bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
- depends on DRM_FBDEV_EMULATION && EXPERT
- default n
- help
- In order to keep user-space compatibility, we want in certain
- use-cases to keep leaking the fbdev physical address to the
- user-space program handling the fbdev buffer.
- This affects, not only, Amlogic, Allwinner or Rockchip devices
- with ARM Mali GPUs using an userspace Blob.
- This option is not supported by upstream developers and should be
- removed as soon as possible and be considered as a broken and
- legacy behaviour from a modern fbdev device driver.
-
- Please send any bug reports when using this to your proprietary
- software vendor that requires this.
-
- If in doubt, say "N" or spread the word to your closed source
- library vendor.
-
-endmenu
+source "drivers/gpu/drm/clients/Kconfig"
config DRM_LOAD_EDID_FIRMWARE
bool "Allow to specify an EDID data set instead of probing for it"
drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
-#
-# DRM clients
-#
-
-drm_client_lib-y := drm_client_setup.o
-drm_client_lib-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_client.o
-obj-$(CONFIG_DRM_CLIENT_LIB) += drm_client_lib.o
-
#
# Drivers and the rest
#
obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o
obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o
obj-y += arm/
+obj-y += clients/
obj-y += display/
obj-$(CONFIG_DRM_TTM) += ttm/
obj-$(CONFIG_DRM_SCHED) += scheduler/
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+
+config DRM_CLIENT_LIB
+ tristate
+ depends on DRM
+ select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
+ select FB_CORE if DRM_FBDEV_EMULATION
+ help
+ This option enables the DRM client library and selects all
+ modules and components according to the enabled clients.
+
+config DRM_CLIENT_SELECTION
+ tristate
+ depends on DRM
+ select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION
+ help
+ Drivers that support in-kernel DRM clients have to select this
+ option.
+
+config DRM_CLIENT_SETUP
+ bool
+ depends on DRM_CLIENT_SELECTION
+ help
+ Enables the DRM client selection. DRM drivers that support the
+ default clients should select DRM_CLIENT_SELECTION instead.
+
+menu "Supported DRM clients"
+ depends on DRM_CLIENT_SELECTION
+
+config DRM_FBDEV_EMULATION
+ bool "Enable legacy fbdev support for your modesetting driver"
+ depends on DRM_CLIENT_SELECTION
+ select DRM_CLIENT
+ select DRM_CLIENT_SETUP
+ select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
+ default FB
+ help
+ Choose this option if you have a need for the legacy fbdev
+ support. Note that this support also provides the linux console
+ support on top of your modesetting driver.
+
+ If in doubt, say "Y".
+
+config DRM_FBDEV_OVERALLOC
+ int "Overallocation of the fbdev buffer"
+ depends on DRM_FBDEV_EMULATION
+ default 100
+ help
+ Defines the fbdev buffer overallocation in percent. Default
+ is 100. Typical values for double buffering will be 200,
+ triple buffering 300.
+
+config DRM_FBDEV_LEAK_PHYS_SMEM
+ bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
+ depends on DRM_FBDEV_EMULATION && EXPERT
+ default n
+ help
+ In order to keep user-space compatibility, we want in certain
+ use-cases to keep leaking the fbdev physical address to the
+ user-space program handling the fbdev buffer.
+ This affects, not only, Amlogic, Allwinner or Rockchip devices
+ with ARM Mali GPUs using a userspace Blob.
+ This option is not supported by upstream developers and should be
+ removed as soon as possible and be considered as a broken and
+ legacy behaviour from a modern fbdev device driver.
+
+ Please send any bug reports when using this to your proprietary
+ software vendor that requires this.
+
+ If in doubt, say "N" or spread the word to your closed source
+ library vendor.
+
+endmenu
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+
+drm_client_lib-y := drm_client_setup.o
+drm_client_lib-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_client.o
+obj-$(CONFIG_DRM_CLIENT_LIB) += drm_client_lib.o
--- /dev/null
+// SPDX-License-Identifier: MIT
+
+#include <drm/drm_client_setup.h>
+#include <drm/drm_device.h>
+#include <drm/drm_fbdev_client.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
+
+/**
+ * drm_client_setup() - Setup in-kernel DRM clients
+ * @dev: DRM device
+ * @format: Preferred pixel format for the device. Use NULL, unless
+ * there is clearly a driver-preferred format.
+ *
+ * This function sets up the in-kernel DRM clients. Restore, hotplug
+ * events and teardown are all taken care of.
+ *
+ * Drivers should call drm_client_setup() after registering the new
+ * DRM device with drm_dev_register(). This function is safe to call
+ * even when there are no connectors present. Setup will be retried
+ * on the next hotplug event.
+ *
+ * The clients are destroyed by drm_dev_unregister().
+ */
+void drm_client_setup(struct drm_device *dev, const struct drm_format_info *format)
+{
+ int ret;
+
+ ret = drm_fbdev_client_setup(dev, format);
+ if (ret)
+ drm_warn(dev, "Failed to set up DRM client; error %d\n", ret);
+}
+EXPORT_SYMBOL(drm_client_setup);
+
+/**
+ * drm_client_setup_with_fourcc() - Setup in-kernel DRM clients for color mode
+ * @dev: DRM device
+ * @fourcc: Preferred pixel format as 4CC code for the device
+ *
+ * This function sets up the in-kernel DRM clients. It is equivalent
+ * to drm_client_setup(), but expects a 4CC code as second argument.
+ */
+void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc)
+{
+ drm_client_setup(dev, drm_format_info(fourcc));
+}
+EXPORT_SYMBOL(drm_client_setup_with_fourcc);
+
+/**
+ * drm_client_setup_with_color_mode() - Setup in-kernel DRM clients for color mode
+ * @dev: DRM device
+ * @color_mode: Preferred color mode for the device
+ *
+ * This function sets up the in-kernel DRM clients. It is equivalent
+ * to drm_client_setup(), but expects a color mode as second argument.
+ *
+ * Do not use this function in new drivers. Prefer drm_client_setup() with a
+ * format of NULL.
+ */
+void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int color_mode)
+{
+ u32 fourcc = drm_driver_color_mode_format(dev, color_mode);
+
+ drm_client_setup_with_fourcc(dev, fourcc);
+}
+EXPORT_SYMBOL(drm_client_setup_with_color_mode);
+
+MODULE_DESCRIPTION("In-kernel DRM clients");
+MODULE_LICENSE("GPL and additional rights");
--- /dev/null
+// SPDX-License-Identifier: MIT
+
+#include <drm/drm_client.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_client.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
+
+/*
+ * struct drm_client_funcs
+ */
+
+static void drm_fbdev_client_unregister(struct drm_client_dev *client)
+{
+ struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+
+ if (fb_helper->info) {
+ drm_fb_helper_unregister_info(fb_helper);
+ } else {
+ drm_client_release(&fb_helper->client);
+ drm_fb_helper_unprepare(fb_helper);
+ kfree(fb_helper);
+ }
+}
+
+static int drm_fbdev_client_restore(struct drm_client_dev *client)
+{
+ drm_fb_helper_lastclose(client->dev);
+
+ return 0;
+}
+
+static int drm_fbdev_client_hotplug(struct drm_client_dev *client)
+{
+ struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+ struct drm_device *dev = client->dev;
+ int ret;
+
+ if (dev->fb_helper)
+ return drm_fb_helper_hotplug_event(dev->fb_helper);
+
+ ret = drm_fb_helper_init(dev, fb_helper);
+ if (ret)
+ goto err_drm_err;
+
+ if (!drm_drv_uses_atomic_modeset(dev))
+ drm_helper_disable_unused_functions(dev);
+
+ ret = drm_fb_helper_initial_config(fb_helper);
+ if (ret)
+ goto err_drm_fb_helper_fini;
+
+ return 0;
+
+err_drm_fb_helper_fini:
+ drm_fb_helper_fini(fb_helper);
+err_drm_err:
+ drm_err(dev, "fbdev: Failed to setup emulation (ret=%d)\n", ret);
+ return ret;
+}
+
+static int drm_fbdev_client_suspend(struct drm_client_dev *client, bool holds_console_lock)
+{
+ struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+
+ if (holds_console_lock)
+ drm_fb_helper_set_suspend(fb_helper, true);
+ else
+ drm_fb_helper_set_suspend_unlocked(fb_helper, true);
+
+ return 0;
+}
+
+static int drm_fbdev_client_resume(struct drm_client_dev *client, bool holds_console_lock)
+{
+ struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+
+ if (holds_console_lock)
+ drm_fb_helper_set_suspend(fb_helper, false);
+ else
+ drm_fb_helper_set_suspend_unlocked(fb_helper, false);
+
+ return 0;
+}
+
+static const struct drm_client_funcs drm_fbdev_client_funcs = {
+ .owner = THIS_MODULE,
+ .unregister = drm_fbdev_client_unregister,
+ .restore = drm_fbdev_client_restore,
+ .hotplug = drm_fbdev_client_hotplug,
+ .suspend = drm_fbdev_client_suspend,
+ .resume = drm_fbdev_client_resume,
+};
+
+/**
+ * drm_fbdev_client_setup() - Setup fbdev emulation
+ * @dev: DRM device
+ * @format: Preferred color format for the device. DRM_FORMAT_XRGB8888
+ * is used if this is zero.
+ *
+ * This function sets up fbdev emulation. Restore, hotplug events and
+ * teardown are all taken care of. Drivers that do suspend/resume need
+ * to call drm_client_dev_suspend() and drm_client_dev_resume() by
+ * themselves. Simple drivers might use drm_mode_config_helper_suspend().
+ *
+ * This function is safe to call even when there are no connectors present.
+ * Setup will be retried on the next hotplug event.
+ *
+ * The fbdev client is destroyed by drm_dev_unregister().
+ *
+ * Returns:
+ * 0 on success, or a negative errno code otherwise.
+ */
+int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info *format)
+{
+ struct drm_fb_helper *fb_helper;
+ unsigned int color_mode;
+ int ret;
+
+ /* TODO: Use format info throughout DRM */
+ if (format) {
+ unsigned int bpp = drm_format_info_bpp(format, 0);
+
+ switch (bpp) {
+ case 16:
+ color_mode = format->depth; // could also be 15
+ break;
+ default:
+ color_mode = bpp;
+ }
+ } else {
+ switch (dev->mode_config.preferred_depth) {
+ case 0:
+ case 24:
+ color_mode = 32;
+ break;
+ default:
+ color_mode = dev->mode_config.preferred_depth;
+ }
+ }
+
+ drm_WARN(dev, !dev->registered, "Device has not been registered.\n");
+ drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
+
+ fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
+ if (!fb_helper)
+ return -ENOMEM;
+ drm_fb_helper_prepare(dev, fb_helper, color_mode, NULL);
+
+ ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs);
+ if (ret) {
+ drm_err(dev, "Failed to register client: %d\n", ret);
+ goto err_drm_client_init;
+ }
+
+ drm_client_register(&fb_helper->client);
+
+ return 0;
+
+err_drm_client_init:
+ drm_fb_helper_unprepare(fb_helper);
+ kfree(fb_helper);
+ return ret;
+}
+EXPORT_SYMBOL(drm_fbdev_client_setup);
+++ /dev/null
-// SPDX-License-Identifier: MIT
-
-#include <drm/drm_client_setup.h>
-#include <drm/drm_device.h>
-#include <drm/drm_fbdev_client.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_print.h>
-
-/**
- * drm_client_setup() - Setup in-kernel DRM clients
- * @dev: DRM device
- * @format: Preferred pixel format for the device. Use NULL, unless
- * there is clearly a driver-preferred format.
- *
- * This function sets up the in-kernel DRM clients. Restore, hotplug
- * events and teardown are all taken care of.
- *
- * Drivers should call drm_client_setup() after registering the new
- * DRM device with drm_dev_register(). This function is safe to call
- * even when there are no connectors present. Setup will be retried
- * on the next hotplug event.
- *
- * The clients are destroyed by drm_dev_unregister().
- */
-void drm_client_setup(struct drm_device *dev, const struct drm_format_info *format)
-{
- int ret;
-
- ret = drm_fbdev_client_setup(dev, format);
- if (ret)
- drm_warn(dev, "Failed to set up DRM client; error %d\n", ret);
-}
-EXPORT_SYMBOL(drm_client_setup);
-
-/**
- * drm_client_setup_with_fourcc() - Setup in-kernel DRM clients for color mode
- * @dev: DRM device
- * @fourcc: Preferred pixel format as 4CC code for the device
- *
- * This function sets up the in-kernel DRM clients. It is equivalent
- * to drm_client_setup(), but expects a 4CC code as second argument.
- */
-void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc)
-{
- drm_client_setup(dev, drm_format_info(fourcc));
-}
-EXPORT_SYMBOL(drm_client_setup_with_fourcc);
-
-/**
- * drm_client_setup_with_color_mode() - Setup in-kernel DRM clients for color mode
- * @dev: DRM device
- * @color_mode: Preferred color mode for the device
- *
- * This function sets up the in-kernel DRM clients. It is equivalent
- * to drm_client_setup(), but expects a color mode as second argument.
- *
- * Do not use this function in new drivers. Prefer drm_client_setup() with a
- * format of NULL.
- */
-void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int color_mode)
-{
- u32 fourcc = drm_driver_color_mode_format(dev, color_mode);
-
- drm_client_setup_with_fourcc(dev, fourcc);
-}
-EXPORT_SYMBOL(drm_client_setup_with_color_mode);
-
-MODULE_DESCRIPTION("In-kernel DRM clients");
-MODULE_LICENSE("GPL and additional rights");
+++ /dev/null
-// SPDX-License-Identifier: MIT
-
-#include <drm/drm_client.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_fbdev_client.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_print.h>
-
-/*
- * struct drm_client_funcs
- */
-
-static void drm_fbdev_client_unregister(struct drm_client_dev *client)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
- if (fb_helper->info) {
- drm_fb_helper_unregister_info(fb_helper);
- } else {
- drm_client_release(&fb_helper->client);
- drm_fb_helper_unprepare(fb_helper);
- kfree(fb_helper);
- }
-}
-
-static int drm_fbdev_client_restore(struct drm_client_dev *client)
-{
- drm_fb_helper_lastclose(client->dev);
-
- return 0;
-}
-
-static int drm_fbdev_client_hotplug(struct drm_client_dev *client)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
- struct drm_device *dev = client->dev;
- int ret;
-
- if (dev->fb_helper)
- return drm_fb_helper_hotplug_event(dev->fb_helper);
-
- ret = drm_fb_helper_init(dev, fb_helper);
- if (ret)
- goto err_drm_err;
-
- if (!drm_drv_uses_atomic_modeset(dev))
- drm_helper_disable_unused_functions(dev);
-
- ret = drm_fb_helper_initial_config(fb_helper);
- if (ret)
- goto err_drm_fb_helper_fini;
-
- return 0;
-
-err_drm_fb_helper_fini:
- drm_fb_helper_fini(fb_helper);
-err_drm_err:
- drm_err(dev, "fbdev: Failed to setup emulation (ret=%d)\n", ret);
- return ret;
-}
-
-static int drm_fbdev_client_suspend(struct drm_client_dev *client, bool holds_console_lock)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
- if (holds_console_lock)
- drm_fb_helper_set_suspend(fb_helper, true);
- else
- drm_fb_helper_set_suspend_unlocked(fb_helper, true);
-
- return 0;
-}
-
-static int drm_fbdev_client_resume(struct drm_client_dev *client, bool holds_console_lock)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
- if (holds_console_lock)
- drm_fb_helper_set_suspend(fb_helper, false);
- else
- drm_fb_helper_set_suspend_unlocked(fb_helper, false);
-
- return 0;
-}
-
-static const struct drm_client_funcs drm_fbdev_client_funcs = {
- .owner = THIS_MODULE,
- .unregister = drm_fbdev_client_unregister,
- .restore = drm_fbdev_client_restore,
- .hotplug = drm_fbdev_client_hotplug,
- .suspend = drm_fbdev_client_suspend,
- .resume = drm_fbdev_client_resume,
-};
-
-/**
- * drm_fbdev_client_setup() - Setup fbdev emulation
- * @dev: DRM device
- * @format: Preferred color format for the device. DRM_FORMAT_XRGB8888
- * is used if this is zero.
- *
- * This function sets up fbdev emulation. Restore, hotplug events and
- * teardown are all taken care of. Drivers that do suspend/resume need
- * to call drm_client_dev_suspend() and drm_client_dev_resume() by
- * themselves. Simple drivers might use drm_mode_config_helper_suspend().
- *
- * This function is safe to call even when there are no connectors present.
- * Setup will be retried on the next hotplug event.
- *
- * The fbdev client is destroyed by drm_dev_unregister().
- *
- * Returns:
- * 0 on success, or a negative errno code otherwise.
- */
-int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info *format)
-{
- struct drm_fb_helper *fb_helper;
- unsigned int color_mode;
- int ret;
-
- /* TODO: Use format info throughout DRM */
- if (format) {
- unsigned int bpp = drm_format_info_bpp(format, 0);
-
- switch (bpp) {
- case 16:
- color_mode = format->depth; // could also be 15
- break;
- default:
- color_mode = bpp;
- }
- } else {
- switch (dev->mode_config.preferred_depth) {
- case 0:
- case 24:
- color_mode = 32;
- break;
- default:
- color_mode = dev->mode_config.preferred_depth;
- }
- }
-
- drm_WARN(dev, !dev->registered, "Device has not been registered.\n");
- drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
- fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
- if (!fb_helper)
- return -ENOMEM;
- drm_fb_helper_prepare(dev, fb_helper, color_mode, NULL);
-
- ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs);
- if (ret) {
- drm_err(dev, "Failed to register client: %d\n", ret);
- goto err_drm_client_init;
- }
-
- drm_client_register(&fb_helper->client);
-
- return 0;
-
-err_drm_client_init:
- drm_fb_helper_unprepare(fb_helper);
- kfree(fb_helper);
- return ret;
-}
-EXPORT_SYMBOL(drm_fbdev_client_setup);
projects / linux-2.6-microblaze.git / commitdiff