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linux/include/drm/drm_fb_cma_helper.h

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DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
#ifndef __DRM_FB_CMA_HELPER_H__
#define __DRM_FB_CMA_HELPER_H__
struct drm_fbdev_cma;
struct drm_gem_cma_object;
drm/fb-cma-helper: Add fb_deferred_io support This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled. The driver has to provide a (struct drm_framebuffer_funcs *)->dirty() callback to get notification of fbdev framebuffer changes. If the dirty() hook is set, then fb_deferred_io is set up automatically by the helper. Two functions have been added so that the driver can provide a dirty() function: - drm_fbdev_cma_init_with_funcs() This makes it possible for the driver to provided a custom (struct drm_fb_helper_funcs *)->fb_probe() function. - drm_fbdev_cma_create_with_funcs() This is used by the .fb_probe hook to set a driver provided (struct drm_framebuffer_funcs *)->dirty() function. Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
2016-04-28 18:18:35 +03:00
struct drm_fb_helper_surface_size;
struct drm_framebuffer_funcs;
struct drm_fb_helper_funcs;
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
struct drm_framebuffer;
drm/fb-cma-helper: Add fb_deferred_io support This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled. The driver has to provide a (struct drm_framebuffer_funcs *)->dirty() callback to get notification of fbdev framebuffer changes. If the dirty() hook is set, then fb_deferred_io is set up automatically by the helper. Two functions have been added so that the driver can provide a dirty() function: - drm_fbdev_cma_init_with_funcs() This makes it possible for the driver to provided a custom (struct drm_fb_helper_funcs *)->fb_probe() function. - drm_fbdev_cma_create_with_funcs() This is used by the .fb_probe hook to set a driver provided (struct drm_framebuffer_funcs *)->dirty() function. Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
2016-04-28 18:18:35 +03:00
struct drm_fb_helper;
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
struct drm_device;
struct drm_file;
struct drm_mode_fb_cmd2;
drm/fb_cma_helper: Add missing forward declaration Add missing forward declaration for struct drm_plane and drm_plane_state, which causes the following warning in the VC4 driver (can be replicated by building using bcm2835_defconfig): In file included from drivers/gpu/drm/vc4/vc4_drv.c:18:0: include/drm/drm_fb_cma_helper.h:45:13: warning: ‘struct drm_plane_state’ declared inside parameter list will not be visible outside of this definition or declaration struct drm_plane_state *state); ^~~~~~~~~~~~~~~ include/drm/drm_fb_cma_helper.h:44:34: warning: ‘struct drm_plane’ declared inside parameter list will not be visible outside of this definition or declaration int drm_fb_cma_prepare_fb(struct drm_plane *plane, Signed-off-by: Marek Vasut <marex@denx.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161115105529.3227-1-marex@denx.de
2016-11-15 13:55:29 +03:00
struct drm_plane;
struct drm_plane_state;
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
drm/fb-cma-helper: Add fb_deferred_io support This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled. The driver has to provide a (struct drm_framebuffer_funcs *)->dirty() callback to get notification of fbdev framebuffer changes. If the dirty() hook is set, then fb_deferred_io is set up automatically by the helper. Two functions have been added so that the driver can provide a dirty() function: - drm_fbdev_cma_init_with_funcs() This makes it possible for the driver to provided a custom (struct drm_fb_helper_funcs *)->fb_probe() function. - drm_fbdev_cma_create_with_funcs() This is used by the .fb_probe hook to set a driver provided (struct drm_framebuffer_funcs *)->dirty() function. Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
2016-04-28 18:18:35 +03:00
struct drm_fbdev_cma *drm_fbdev_cma_init_with_funcs(struct drm_device *dev,
drm: Rely on mode_config data for fb_helper initialization Instead of receiving the num_crts as a parameter, we can read it directly from the mode_config structure. I audited the drivers that invoke this helper and I believe all of them initialize the mode_config struct accordingly, prior to calling the fb_helper. I used the following coccinelle hack to make this transformation, except for the function headers and comment updates. The first and second rules are split because I couldn't find a way to remove the unused temporary variables at the same time I removed the parameter. // <smpl> @r@ expression A,B,D,E; identifier C; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ expression A,B,C,D,E; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ identifier r.C; type T; expression V; @@ - T C; <... when != C - C = V; ...> // </smpl> Changes since v1: - Rebased on top of the tip of drm-misc-next. - Remove mention to sti since a proper fix got merged. Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:26:40 +03:00
unsigned int preferred_bpp, unsigned int max_conn_count,
const struct drm_framebuffer_funcs *funcs);
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
drm: Rely on mode_config data for fb_helper initialization Instead of receiving the num_crts as a parameter, we can read it directly from the mode_config structure. I audited the drivers that invoke this helper and I believe all of them initialize the mode_config struct accordingly, prior to calling the fb_helper. I used the following coccinelle hack to make this transformation, except for the function headers and comment updates. The first and second rules are split because I couldn't find a way to remove the unused temporary variables at the same time I removed the parameter. // <smpl> @r@ expression A,B,D,E; identifier C; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ expression A,B,C,D,E; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ identifier r.C; type T; expression V; @@ - T C; <... when != C - C = V; ...> // </smpl> Changes since v1: - Rebased on top of the tip of drm-misc-next. - Remove mention to sti since a proper fix got merged. Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:26:40 +03:00
unsigned int preferred_bpp, unsigned int max_conn_count);
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
drm/fb_cma_helper: add suspend helper Implement a suspend/resume helper for CMA users which calls drm_fb_helper_set_suspend. Suggested-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Stefan Agner <stefan@agner.ch>
2016-02-12 04:30:14 +03:00
void drm_fbdev_cma_set_suspend(struct drm_fbdev_cma *fbdev_cma, int state);
drm/fb-cma-helper: Add drm_fbdev_cma_set_suspend_unlocked() Add a CMA version of drm_fb_helper_set_suspend_unlocked(). Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170122181117.8210-2-noralf@tronnes.org
2017-01-22 21:11:09 +03:00
void drm_fbdev_cma_set_suspend_unlocked(struct drm_fbdev_cma *fbdev_cma,
int state);
drm/fb-cma-helper: Add fb_deferred_io support This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled. The driver has to provide a (struct drm_framebuffer_funcs *)->dirty() callback to get notification of fbdev framebuffer changes. If the dirty() hook is set, then fb_deferred_io is set up automatically by the helper. Two functions have been added so that the driver can provide a dirty() function: - drm_fbdev_cma_init_with_funcs() This makes it possible for the driver to provided a custom (struct drm_fb_helper_funcs *)->fb_probe() function. - drm_fbdev_cma_create_with_funcs() This is used by the .fb_probe hook to set a driver provided (struct drm_framebuffer_funcs *)->dirty() function. Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
2016-04-28 18:18:35 +03:00
void drm_fb_cma_destroy(struct drm_framebuffer *fb);
int drm_fb_cma_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv, unsigned int *handle);
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
drm/fb-cma-helper: Add function drm_fb_cma_create_with_funcs() Add drm_fb_cma_create_with_funcs() for drivers that need to set the dirty() callback. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1463077523-23959-3-git-send-email-noralf@tronnes.org
2016-05-12 21:25:22 +03:00
struct drm_framebuffer *drm_fb_cma_create_with_funcs(struct drm_device *dev,
struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd,
const struct drm_framebuffer_funcs *funcs);
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
drm: Pass the user drm_mode_fb_cmd2 as const to .fb_create() Drivers shouldn't clobber the passed in addfb ioctl parameters. i915 was doing just that. To prevent it from happening again, pass the struct around as const, starting all the way from internal_framebuffer_create(). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-11-11 20:11:29 +03:00
struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd);
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
unsigned int plane);
drm/fb-cma-helper: Add drm_fb_cma_get_gem_addr() Add function drm_fb_cma_get_gem_addr() which return the physical address of framebuffer (1st pixel). This function will usually be called by plane callback (atomic_update). Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1492164819-10513-3-git-send-email-yannick.fertre@st.com Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2017-04-14 13:13:32 +03:00
dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
struct drm_plane_state *state,
unsigned int plane);
drm/fb_cma_helper: Add drm_fb_cma_prepare_fb() helper Add new drm_fb_cma_prepare_fb() helper function extracted from the imx-drm driver. This function checks if the plane has DMABUF attached to it, extracts the exclusive fence from it and attaches it to the plane state for the atomic helper to wait on it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161114100732.3446-1-marex@denx.de
2016-11-14 13:07:31 +03:00
int drm_fb_cma_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *state);
drm/cma: add debugfs helpers Add helper to display fb's which can be used directly in drm_info_list: static struct drm_info_list foo_debugfs_list[] = { ... { "fb", drm_fb_cma_debugfs_show, 0 }, }; to display information about CMA fb objects, as well as a drm_gem_cma_describe() which can be used if the driver bothers to keep a list of CMA GEM objects. Signed-off-by: Rob Clark <robdclark@gmail.com>
2012-12-10 20:46:43 +04:00
#ifdef CONFIG_DEBUG_FS
drm: fb: Add seq_file definition Otherwise, building with DEBUG_FS enabled will trigger a build warning because we're using a structure that has not been declared. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-02-08 15:58:56 +03:00
struct seq_file;
drm/cma: add debugfs helpers Add helper to display fb's which can be used directly in drm_info_list: static struct drm_info_list foo_debugfs_list[] = { ... { "fb", drm_fb_cma_debugfs_show, 0 }, }; to display information about CMA fb objects, as well as a drm_gem_cma_describe() which can be used if the driver bothers to keep a list of CMA GEM objects. Signed-off-by: Rob Clark <robdclark@gmail.com>
2012-12-10 20:46:43 +04:00
int drm_fb_cma_debugfs_show(struct seq_file *m, void *arg);
#endif
DRM: Add DRM KMS/FB CMA helper This patchset introduces a set of helper function for implementing the KMS framebuffer layer for drivers which use the DRM GEM CMA helper function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> [Make DRM_KMS_CMA_HELPER a boolean Kconfig option] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-02 18:37:47 +04:00
#endif
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