__ __ __ __ _____ _ _ _____ _ _ _ | \/ | \ \ / / | __ \ (_) | | / ____| | | | | | \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | | | |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | | | | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | | |_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1 if you need WebShell for Seo everyday contact me on Telegram Telegram Address : @jackleetFor_More_Tools:
/*
* Copyright (c) 2006-2009 Red Hat Inc.
* Copyright (c) 2006-2008 Intel Corporation
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
*
* DRM framebuffer helper functions
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Authors:
* Dave Airlie <airlied@linux.ie>
* Jesse Barnes <jesse.barnes@intel.com>
*/
#ifndef DRM_FB_HELPER_H
#define DRM_FB_HELPER_H
struct drm_clip_rect;
struct drm_fb_helper;
#include <linux/fb.h>
#include <drm/drm_client.h>
/**
* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
* @fb_width: fbdev width
* @fb_height: fbdev height
* @surface_width: scanout buffer width
* @surface_height: scanout buffer height
* @surface_bpp: scanout buffer bpp
* @surface_depth: scanout buffer depth
*
* Note that the scanout surface width/height may be larger than the fbdev
* width/height. In case of multiple displays, the scanout surface is sized
* according to the largest width/height (so it is large enough for all CRTCs
* to scanout). But the fbdev width/height is sized to the minimum width/
* height of all the displays. This ensures that fbcon fits on the smallest
* of the attached displays. fb_width/fb_height is used by
* drm_fb_helper_fill_info() to fill out the &fb_info.var structure.
*/
struct drm_fb_helper_surface_size {
u32 fb_width;
u32 fb_height;
u32 surface_width;
u32 surface_height;
u32 surface_bpp;
u32 surface_depth;
};
/**
* struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library
*
* Driver callbacks used by the fbdev emulation helper library.
*/
struct drm_fb_helper_funcs {
/**
* @fb_dirty:
*
* Driver callback to update the framebuffer memory. If set, fbdev
* emulation will invoke this callback in regular intervals after
* the framebuffer has been written.
*
* This callback is optional.
*
* Returns:
* 0 on success, or an error code otherwise.
*/
int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect *clip);
/**
* @fb_restore:
*
* Driver callback to restore internal fbdev state. If set, fbdev
* emulation will invoke this callback after restoring the display
* mode.
*
* Only for i915. Do not use in new code.
*
* TODO: Fix i915 to not require this callback.
*/
void (*fb_restore)(struct drm_fb_helper *helper);
/**
* @fb_set_suspend:
*
* Driver callback to suspend or resume, if set, fbdev emulation will
* invoke this callback during suspend and resume. Driver should call
* fb_set_suspend() from their implementation. If not set, fbdev
* emulation will invoke fb_set_suspend() directly.
*
* Only for i915. Do not use in new code.
*
* TODO: Fix i915 to not require this callback.
*/
void (*fb_set_suspend)(struct drm_fb_helper *helper, bool suspend);
};
/**
* struct drm_fb_helper - main structure to emulate fbdev on top of KMS
* @fb: Scanout framebuffer object
* @dev: DRM device
* @funcs: driver callbacks for fb helper
* @info: emulated fbdev device info struct
* @pseudo_palette: fake palette of 16 colors
* @damage_clip: clip rectangle used with deferred_io to accumulate damage to
* the screen buffer
* @damage_lock: spinlock protecting @damage_clip
* @damage_work: worker used to flush the framebuffer
* @resume_work: worker used during resume if the console lock is already taken
*
* This is the main structure used by the fbdev helpers. Drivers supporting
* fbdev emulation should embedded this into their overall driver structure.
* Drivers must also fill out a &struct drm_fb_helper_funcs with a few
* operations.
*/
struct drm_fb_helper {
/**
* @client:
*
* DRM client used by the generic fbdev emulation.
*/
struct drm_client_dev client;
/**
* @buffer:
*
* Framebuffer used by the generic fbdev emulation.
*/
struct drm_client_buffer *buffer;
struct drm_framebuffer *fb;
struct drm_device *dev;
const struct drm_fb_helper_funcs *funcs;
struct fb_info *info;
u32 pseudo_palette[17];
struct drm_clip_rect damage_clip;
spinlock_t damage_lock;
struct work_struct damage_work;
struct work_struct resume_work;
/**
* @lock:
*
* Top-level FBDEV helper lock. This protects all internal data
* structures and lists, such as @connector_info and @crtc_info.
*
* FIXME: fbdev emulation locking is a mess and long term we want to
* protect all helper internal state with this lock as well as reduce
* core KMS locking as much as possible.
*/
struct mutex lock;
/**
* @kernel_fb_list:
*
* Entry on the global kernel_fb_helper_list, used for kgdb entry/exit.
*/
struct list_head kernel_fb_list;
/**
* @delayed_hotplug:
*
* A hotplug was received while fbdev wasn't in control of the DRM
* device, i.e. another KMS master was active. The output configuration
* needs to be reprobe when fbdev is in control again.
*/
bool delayed_hotplug;
/**
* @deferred_setup:
*
* If no outputs are connected (disconnected or unknown) the FB helper
* code will defer setup until at least one of the outputs shows up.
* This field keeps track of the status so that setup can be retried
* at every hotplug event until it succeeds eventually.
*
* Protected by @lock.
*/
bool deferred_setup;
/**
* @preferred_bpp:
*
* Temporary storage for the driver's preferred BPP setting passed to
* FB helper initialization. This needs to be tracked so that deferred
* FB helper setup can pass this on.
*
* See also: @deferred_setup
*/
int preferred_bpp;
#ifdef CONFIG_FB_DEFERRED_IO
/**
* @fbdefio:
*
* Temporary storage for the driver's FB deferred I/O handler. If the
* driver uses the DRM fbdev emulation layer, this is set by the core
* to a generic deferred I/O handler if a driver is preferring to use
* a shadow buffer.
*/
struct fb_deferred_io fbdefio;
#endif
};
static inline struct drm_fb_helper *
drm_fb_helper_from_client(struct drm_client_dev *client)
{
return container_of(client, struct drm_fb_helper, client);
}
/**
* define DRM_FB_HELPER_DEFAULT_OPS - helper define for drm drivers
*
* Helper define to register default implementations of drm_fb_helper
* functions. To be used in struct fb_ops of drm drivers.
*/
#define DRM_FB_HELPER_DEFAULT_OPS \
.fb_check_var = drm_fb_helper_check_var, \
.fb_set_par = drm_fb_helper_set_par, \
.fb_setcmap = drm_fb_helper_setcmap, \
.fb_blank = drm_fb_helper_blank, \
.fb_pan_display = drm_fb_helper_pan_display, \
.fb_debug_enter = drm_fb_helper_debug_enter, \
.fb_debug_leave = drm_fb_helper_debug_leave, \
.fb_ioctl = drm_fb_helper_ioctl
#ifdef CONFIG_DRM_FBDEV_EMULATION
void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
unsigned int preferred_bpp,
const struct drm_fb_helper_funcs *funcs);
void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper);
int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper);
void drm_fb_helper_fini(struct drm_fb_helper *helper);
int drm_fb_helper_blank(int blank, struct fb_info *info);
int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
int drm_fb_helper_set_par(struct fb_info *info);
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info);
int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper);
struct fb_info *drm_fb_helper_alloc_info(struct drm_fb_helper *fb_helper);
void drm_fb_helper_release_info(struct drm_fb_helper *fb_helper);
void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper);
void drm_fb_helper_fill_info(struct fb_info *info,
struct drm_fb_helper *fb_helper,
struct drm_fb_helper_surface_size *sizes);
void drm_fb_helper_damage_range(struct fb_info *info, off_t off, size_t len);
void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height);
#ifdef CONFIG_FB_DEFERRED_IO
void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagereflist);
#endif
void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, bool suspend);
void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper,
bool suspend);
int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg);
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 drm_fb_helper_debug_enter(struct fb_info *info);
int drm_fb_helper_debug_leave(struct fb_info *info);
void drm_fb_helper_lastclose(struct drm_device *dev);
#else
static inline void drm_fb_helper_prepare(struct drm_device *dev,
struct drm_fb_helper *helper,
unsigned int preferred_bpp,
const struct drm_fb_helper_funcs *funcs)
{
}
static inline void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper)
{
}
static inline int drm_fb_helper_init(struct drm_device *dev,
struct drm_fb_helper *helper)
{
/* So drivers can use it to free the struct */
helper->dev = dev;
dev->fb_helper = helper;
return 0;
}
static inline void drm_fb_helper_fini(struct drm_fb_helper *helper)
{
if (helper && helper->dev)
helper->dev->fb_helper = NULL;
}
static inline int drm_fb_helper_blank(int blank, struct fb_info *info)
{
return 0;
}
static inline int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
return 0;
}
static inline int drm_fb_helper_set_par(struct fb_info *info)
{
return 0;
}
static inline int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
return 0;
}
static inline int
drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
{
return 0;
}
static inline struct fb_info *
drm_fb_helper_alloc_info(struct drm_fb_helper *fb_helper)
{
return NULL;
}
static inline void drm_fb_helper_release_info(struct drm_fb_helper *fb_helper)
{
}
static inline void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper)
{
}
static inline void
drm_fb_helper_fill_info(struct fb_info *info,
struct drm_fb_helper *fb_helper,
struct drm_fb_helper_surface_size *sizes)
{
}
static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap,
struct fb_info *info)
{
return 0;
}
static inline int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg)
{
return 0;
}
#ifdef CONFIG_FB_DEFERRED_IO
static inline void drm_fb_helper_deferred_io(struct fb_info *info,
struct list_head *pagelist)
{
}
#endif
static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper,
bool suspend)
{
}
static inline void
drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper, bool suspend)
{
}
static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
{
return 0;
}
static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper)
{
return 0;
}
static inline int drm_fb_helper_debug_enter(struct fb_info *info)
{
return 0;
}
static inline int drm_fb_helper_debug_leave(struct fb_info *info)
{
return 0;
}
static inline void drm_fb_helper_lastclose(struct drm_device *dev)
{
}
#endif
#endif
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| bridge | Folder | 0755 |
|
|
| clients | Folder | 0755 |
|
|
| display | Folder | 0755 |
|
|
| intel | Folder | 0755 |
|
|
| ttm | Folder | 0755 |
|
|
| Makefile | File | 642 B | 0644 |
|
| amd_asic_type.h | File | 2.35 KB | 0644 |
|
| drm_accel.h | File | 2.25 KB | 0644 |
|
| drm_atomic.h | File | 44.79 KB | 0644 |
|
| drm_atomic_helper.h | File | 10.88 KB | 0644 |
|
| drm_atomic_state_helper.h | File | 4.42 KB | 0644 |
|
| drm_atomic_uapi.h | File | 2.06 KB | 0644 |
|
| drm_audio_component.h | File | 3.84 KB | 0644 |
|
| drm_auth.h | File | 4.18 KB | 0644 |
|
| drm_blend.h | File | 2.35 KB | 0644 |
|
| drm_bridge.h | File | 38.1 KB | 0644 |
|
| drm_bridge_connector.h | File | 405 B | 0644 |
|
| drm_buddy.h | File | 4.51 KB | 0644 |
|
| drm_cache.h | File | 3.3 KB | 0644 |
|
| drm_client.h | File | 6.45 KB | 0644 |
|
| drm_client_event.h | File | 923 B | 0644 |
|
| drm_color_mgmt.h | File | 3.91 KB | 0644 |
|
| drm_connector.h | File | 74.11 KB | 0644 |
|
| drm_crtc.h | File | 44.58 KB | 0644 |
|
| drm_crtc_helper.h | File | 2.51 KB | 0644 |
|
| drm_damage_helper.h | File | 3.33 KB | 0644 |
|
| drm_debugfs.h | File | 5.68 KB | 0644 |
|
| drm_debugfs_crc.h | File | 2.76 KB | 0644 |
|
| drm_device.h | File | 8.08 KB | 0644 |
|
| drm_drv.h | File | 17.24 KB | 0644 |
|
| drm_edid.h | File | 15.5 KB | 0644 |
|
| drm_eld.h | File | 4.76 KB | 0644 |
|
| drm_encoder.h | File | 11.07 KB | 0644 |
|
| drm_exec.h | File | 4.3 KB | 0644 |
|
| drm_fb_dma_helper.h | File | 718 B | 0644 |
|
| drm_fb_helper.h | File | 12.03 KB | 0644 |
|
| drm_fbdev_dma.h | File | 461 B | 0644 |
|
| drm_fbdev_shmem.h | File | 475 B | 0644 |
|
| drm_fbdev_ttm.h | File | 488 B | 0644 |
|
| drm_file.h | File | 14.54 KB | 0644 |
|
| drm_fixed.h | File | 5.29 KB | 0644 |
|
| drm_flip_work.h | File | 2.63 KB | 0644 |
|
| drm_format_helper.h | File | 5.8 KB | 0644 |
|
| drm_fourcc.h | File | 9.99 KB | 0644 |
|
| drm_framebuffer.h | File | 10.04 KB | 0644 |
|
| drm_gem.h | File | 18.94 KB | 0644 |
|
| drm_gem_atomic_helper.h | File | 5.52 KB | 0644 |
|
| drm_gem_dma_helper.h | File | 9.26 KB | 0644 |
|
| drm_gem_framebuffer_helper.h | File | 1.93 KB | 0644 |
|
| drm_gem_shmem_helper.h | File | 8.22 KB | 0644 |
|
| drm_gem_ttm_helper.h | File | 822 B | 0644 |
|
| drm_gem_vram_helper.h | File | 5.73 KB | 0644 |
|
| drm_gpusvm.h | File | 16.72 KB | 0644 |
|
| drm_gpuvm.h | File | 33.62 KB | 0644 |
|
| drm_ioctl.h | File | 5.82 KB | 0644 |
|
| drm_kunit_helpers.h | File | 4.12 KB | 0644 |
|
| drm_lease.h | File | 1.01 KB | 0644 |
|
| drm_managed.h | File | 4.39 KB | 0644 |
|
| drm_mipi_dbi.h | File | 7.08 KB | 0644 |
|
| drm_mipi_dsi.h | File | 17.54 KB | 0644 |
|
| drm_mm.h | File | 17.46 KB | 0644 |
|
| drm_mode_config.h | File | 32.7 KB | 0644 |
|
| drm_mode_object.h | File | 5.45 KB | 0644 |
|
| drm_modes.h | File | 19.99 KB | 0644 |
|
| drm_modeset_helper.h | File | 1.77 KB | 0644 |
|
| drm_modeset_helper_vtables.h | File | 61.26 KB | 0644 |
|
| drm_modeset_lock.h | File | 7.07 KB | 0644 |
|
| drm_module.h | File | 3.72 KB | 0644 |
|
| drm_of.h | File | 5.25 KB | 0644 |
|
| drm_pagemap.h | File | 2.98 KB | 0644 |
|
| drm_panel.h | File | 8.87 KB | 0644 |
|
| drm_panic.h | File | 5.56 KB | 0644 |
|
| drm_pciids.h | File | 61.04 KB | 0644 |
|
| drm_plane.h | File | 31.3 KB | 0644 |
|
| drm_plane_helper.h | File | 2.22 KB | 0644 |
|
| drm_prime.h | File | 4.21 KB | 0644 |
|
| drm_print.h | File | 22.74 KB | 0644 |
|
| drm_privacy_screen_consumer.h | File | 1.94 KB | 0644 |
|
| drm_privacy_screen_driver.h | File | 2.99 KB | 0644 |
|
| drm_privacy_screen_machine.h | File | 1.25 KB | 0644 |
|
| drm_probe_helper.h | File | 1.68 KB | 0644 |
|
| drm_property.h | File | 11.99 KB | 0644 |
|
| drm_rect.h | File | 7.52 KB | 0644 |
|
| drm_self_refresh_helper.h | File | 594 B | 0644 |
|
| drm_simple_kms_helper.h | File | 9.52 KB | 0644 |
|
| drm_suballoc.h | File | 2.74 KB | 0644 |
|
| drm_syncobj.h | File | 3.95 KB | 0644 |
|
| drm_sysfs.h | File | 512 B | 0644 |
|
| drm_util.h | File | 2.2 KB | 0644 |
|
| drm_utils.h | File | 592 B | 0644 |
|
| drm_vblank.h | File | 10.18 KB | 0644 |
|
| drm_vblank_work.h | File | 1.99 KB | 0644 |
|
| drm_vma_manager.h | File | 8.23 KB | 0644 |
|
| drm_writeback.h | File | 4.67 KB | 0644 |
|
| gpu_scheduler.h | File | 20.46 KB | 0644 |
|
| gud.h | File | 11.65 KB | 0644 |
|
| i915_pciids.h | File | 27.05 KB | 0644 |
|
| spsc_queue.h | File | 3.06 KB | 0644 |
|
| task_barrier.h | File | 2.95 KB | 0644 |
|