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/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __DRM_GEM_ATOMIC_HELPER_H__
#define __DRM_GEM_ATOMIC_HELPER_H__
#include <linux/iosys-map.h>
#include <drm/drm_format_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_plane.h>
struct drm_simple_display_pipe;
/*
* Plane Helpers
*/
int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state);
/*
* Helpers for planes with shadow buffers
*/
/**
* DRM_SHADOW_PLANE_MAX_WIDTH - Maximum width of a plane's shadow buffer in pixels
*
* For drivers with shadow planes, the maximum width of the framebuffer is
* usually independent from hardware limitations. Drivers can initialize struct
* drm_mode_config.max_width from DRM_SHADOW_PLANE_MAX_WIDTH.
*/
#define DRM_SHADOW_PLANE_MAX_WIDTH (4096u)
/**
* DRM_SHADOW_PLANE_MAX_HEIGHT - Maximum height of a plane's shadow buffer in scanlines
*
* For drivers with shadow planes, the maximum height of the framebuffer is
* usually independent from hardware limitations. Drivers can initialize struct
* drm_mode_config.max_height from DRM_SHADOW_PLANE_MAX_HEIGHT.
*/
#define DRM_SHADOW_PLANE_MAX_HEIGHT (4096u)
/**
* struct drm_shadow_plane_state - plane state for planes with shadow buffers
*
* For planes that use a shadow buffer, struct drm_shadow_plane_state
* provides the regular plane state plus mappings of the shadow buffer
* into kernel address space.
*/
struct drm_shadow_plane_state {
/** @base: plane state */
struct drm_plane_state base;
/**
* @fmtcnv_state: Format-conversion state
*
* Per-plane state for format conversion.
* Flags for copying shadow buffers into backend storage. Also holds
* temporary storage for format conversion.
*/
struct drm_format_conv_state fmtcnv_state;
/* Transitional state - do not export or duplicate */
/**
* @map: Mappings of the plane's framebuffer BOs in to kernel address space
*
* The memory mappings stored in map should be established in the plane's
* prepare_fb callback and removed in the cleanup_fb callback.
*/
struct iosys_map map[DRM_FORMAT_MAX_PLANES];
/**
* @data: Address of each framebuffer BO's data
*
* The address of the data stored in each mapping. This is different
* for framebuffers with non-zero offset fields.
*/
struct iosys_map data[DRM_FORMAT_MAX_PLANES];
};
/**
* to_drm_shadow_plane_state - upcasts from struct drm_plane_state
* @state: the plane state
*/
static inline struct drm_shadow_plane_state *
to_drm_shadow_plane_state(struct drm_plane_state *state)
{
return container_of(state, struct drm_shadow_plane_state, base);
}
void __drm_gem_duplicate_shadow_plane_state(struct drm_plane *plane,
struct drm_shadow_plane_state *new_shadow_plane_state);
void __drm_gem_destroy_shadow_plane_state(struct drm_shadow_plane_state *shadow_plane_state);
void __drm_gem_reset_shadow_plane(struct drm_plane *plane,
struct drm_shadow_plane_state *shadow_plane_state);
void drm_gem_reset_shadow_plane(struct drm_plane *plane);
struct drm_plane_state *drm_gem_duplicate_shadow_plane_state(struct drm_plane *plane);
void drm_gem_destroy_shadow_plane_state(struct drm_plane *plane,
struct drm_plane_state *plane_state);
/**
* DRM_GEM_SHADOW_PLANE_FUNCS -
* Initializes struct drm_plane_funcs for shadow-buffered planes
*
* Drivers may use GEM BOs as shadow buffers over the framebuffer memory. This
* macro initializes struct drm_plane_funcs to use the rsp helper functions.
*/
#define DRM_GEM_SHADOW_PLANE_FUNCS \
.reset = drm_gem_reset_shadow_plane, \
.atomic_duplicate_state = drm_gem_duplicate_shadow_plane_state, \
.atomic_destroy_state = drm_gem_destroy_shadow_plane_state
int drm_gem_begin_shadow_fb_access(struct drm_plane *plane, struct drm_plane_state *plane_state);
void drm_gem_end_shadow_fb_access(struct drm_plane *plane, struct drm_plane_state *plane_state);
/**
* DRM_GEM_SHADOW_PLANE_HELPER_FUNCS -
* Initializes struct drm_plane_helper_funcs for shadow-buffered planes
*
* Drivers may use GEM BOs as shadow buffers over the framebuffer memory. This
* macro initializes struct drm_plane_helper_funcs to use the rsp helper
* functions.
*/
#define DRM_GEM_SHADOW_PLANE_HELPER_FUNCS \
.begin_fb_access = drm_gem_begin_shadow_fb_access, \
.end_fb_access = drm_gem_end_shadow_fb_access
int drm_gem_simple_kms_begin_shadow_fb_access(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
void drm_gem_simple_kms_end_shadow_fb_access(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
void drm_gem_simple_kms_reset_shadow_plane(struct drm_simple_display_pipe *pipe);
struct drm_plane_state *
drm_gem_simple_kms_duplicate_shadow_plane_state(struct drm_simple_display_pipe *pipe);
void drm_gem_simple_kms_destroy_shadow_plane_state(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
/**
* DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS -
* Initializes struct drm_simple_display_pipe_funcs for shadow-buffered planes
*
* Drivers may use GEM BOs as shadow buffers over the framebuffer memory. This
* macro initializes struct drm_simple_display_pipe_funcs to use the rsp helper
* functions.
*/
#define DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS \
.begin_fb_access = drm_gem_simple_kms_begin_shadow_fb_access, \
.end_fb_access = drm_gem_simple_kms_end_shadow_fb_access, \
.reset_plane = drm_gem_simple_kms_reset_shadow_plane, \
.duplicate_plane_state = drm_gem_simple_kms_duplicate_shadow_plane_state, \
.destroy_plane_state = drm_gem_simple_kms_destroy_shadow_plane_state
#endif /* __DRM_GEM_ATOMIC_HELPER_H__ */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| bridge | Folder | 0755 |
|
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| clients | Folder | 0755 |
|
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| display | Folder | 0755 |
|
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| intel | Folder | 0755 |
|
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| ttm | Folder | 0755 |
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|
| Makefile | File | 642 B | 0644 |
|
| amd_asic_type.h | File | 2.35 KB | 0644 |
|
| drm_accel.h | File | 2.25 KB | 0644 |
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| drm_atomic.h | File | 44.79 KB | 0644 |
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| drm_atomic_helper.h | File | 10.88 KB | 0644 |
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| drm_atomic_state_helper.h | File | 4.42 KB | 0644 |
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| drm_atomic_uapi.h | File | 2.06 KB | 0644 |
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| drm_audio_component.h | File | 3.84 KB | 0644 |
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| drm_auth.h | File | 4.18 KB | 0644 |
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| drm_blend.h | File | 2.35 KB | 0644 |
|
| drm_bridge.h | File | 38.1 KB | 0644 |
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| drm_bridge_connector.h | File | 405 B | 0644 |
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| drm_buddy.h | File | 4.51 KB | 0644 |
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| drm_cache.h | File | 3.3 KB | 0644 |
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| drm_client.h | File | 6.45 KB | 0644 |
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| drm_client_event.h | File | 923 B | 0644 |
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| 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 |
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| 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 |
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| drm_exec.h | File | 4.3 KB | 0644 |
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| drm_fb_dma_helper.h | File | 718 B | 0644 |
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| drm_fb_helper.h | File | 12.03 KB | 0644 |
|
| drm_fbdev_dma.h | File | 461 B | 0644 |
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| drm_fbdev_shmem.h | File | 475 B | 0644 |
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| drm_fbdev_ttm.h | File | 488 B | 0644 |
|
| drm_file.h | File | 14.54 KB | 0644 |
|
| drm_fixed.h | File | 5.29 KB | 0644 |
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| drm_flip_work.h | File | 2.63 KB | 0644 |
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| drm_format_helper.h | File | 5.8 KB | 0644 |
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| drm_fourcc.h | File | 9.99 KB | 0644 |
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| drm_framebuffer.h | File | 10.04 KB | 0644 |
|
| drm_gem.h | File | 18.94 KB | 0644 |
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| drm_gem_atomic_helper.h | File | 5.52 KB | 0644 |
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| drm_gem_dma_helper.h | File | 9.26 KB | 0644 |
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| drm_gem_framebuffer_helper.h | File | 1.93 KB | 0644 |
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| drm_gem_shmem_helper.h | File | 8.22 KB | 0644 |
|
| drm_gem_ttm_helper.h | File | 822 B | 0644 |
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| 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 |
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| drm_lease.h | File | 1.01 KB | 0644 |
|
| drm_managed.h | File | 4.39 KB | 0644 |
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| drm_mipi_dbi.h | File | 7.08 KB | 0644 |
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| drm_mipi_dsi.h | File | 17.54 KB | 0644 |
|
| drm_mm.h | File | 17.46 KB | 0644 |
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| drm_mode_config.h | File | 32.7 KB | 0644 |
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| drm_mode_object.h | File | 5.45 KB | 0644 |
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| drm_modes.h | File | 19.99 KB | 0644 |
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| drm_modeset_helper.h | File | 1.77 KB | 0644 |
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| drm_modeset_helper_vtables.h | File | 61.26 KB | 0644 |
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| drm_modeset_lock.h | File | 7.07 KB | 0644 |
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| drm_module.h | File | 3.72 KB | 0644 |
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| drm_of.h | File | 5.25 KB | 0644 |
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| drm_pagemap.h | File | 2.98 KB | 0644 |
|
| drm_panel.h | File | 8.87 KB | 0644 |
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| drm_panic.h | File | 5.56 KB | 0644 |
|
| drm_pciids.h | File | 61.04 KB | 0644 |
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| 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 |
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| drm_privacy_screen_machine.h | File | 1.25 KB | 0644 |
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| 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 |
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| drm_self_refresh_helper.h | File | 594 B | 0644 |
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| drm_simple_kms_helper.h | File | 9.52 KB | 0644 |
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| drm_suballoc.h | File | 2.74 KB | 0644 |
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| drm_syncobj.h | File | 3.95 KB | 0644 |
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| drm_sysfs.h | File | 512 B | 0644 |
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| drm_util.h | File | 2.2 KB | 0644 |
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| drm_utils.h | File | 592 B | 0644 |
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| drm_vblank.h | File | 10.18 KB | 0644 |
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| drm_vblank_work.h | File | 1.99 KB | 0644 |
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| drm_vma_manager.h | File | 8.23 KB | 0644 |
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| drm_writeback.h | File | 4.67 KB | 0644 |
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| gpu_scheduler.h | File | 20.46 KB | 0644 |
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| gud.h | File | 11.65 KB | 0644 |
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| i915_pciids.h | File | 27.05 KB | 0644 |
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| spsc_queue.h | File | 3.06 KB | 0644 |
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| task_barrier.h | File | 2.95 KB | 0644 |
|