__ __ __ __ _____ _ _ _____ _ _ _ | \/ | \ \ / / | __ \ (_) | | / ____| | | | | | \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | | | |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | | | | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | | |_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1 if you need WebShell for Seo everyday contact me on Telegram Telegram Address : @jackleetFor_More_Tools:
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DRM_GEM_SHMEM_HELPER_H__
#define __DRM_GEM_SHMEM_HELPER_H__
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <drm/drm_file.h>
#include <drm/drm_gem.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_prime.h>
struct dma_buf_attachment;
struct drm_mode_create_dumb;
struct drm_printer;
struct sg_table;
/**
* struct drm_gem_shmem_object - GEM object backed by shmem
*/
struct drm_gem_shmem_object {
/**
* @base: Base GEM object
*/
struct drm_gem_object base;
/**
* @pages: Page table
*/
struct page **pages;
/**
* @pages_use_count:
*
* Reference count on the pages table.
* The pages are put when the count reaches zero.
*/
unsigned int pages_use_count;
/**
* @madv: State for madvise
*
* 0 is active/inuse.
* A negative value is the object is purged.
* Positive values are driver specific and not used by the helpers.
*/
int madv;
/**
* @madv_list: List entry for madvise tracking
*
* Typically used by drivers to track purgeable objects
*/
struct list_head madv_list;
/**
* @sgt: Scatter/gather table for imported PRIME buffers
*/
struct sg_table *sgt;
/**
* @vaddr: Kernel virtual address of the backing memory
*/
void *vaddr;
/**
* @vmap_use_count:
*
* Reference count on the virtual address.
* The address are un-mapped when the count reaches zero.
*/
unsigned int vmap_use_count;
/**
* @pages_mark_dirty_on_put:
*
* Mark pages as dirty when they are put.
*/
bool pages_mark_dirty_on_put : 1;
/**
* @pages_mark_accessed_on_put:
*
* Mark pages as accessed when they are put.
*/
bool pages_mark_accessed_on_put : 1;
/**
* @map_wc: map object write-combined (instead of using shmem defaults).
*/
bool map_wc : 1;
};
#define to_drm_gem_shmem_obj(obj) \
container_of(obj, struct drm_gem_shmem_object, base)
struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size);
struct drm_gem_shmem_object *drm_gem_shmem_create_with_mnt(struct drm_device *dev,
size_t size,
struct vfsmount *gemfs);
void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem);
void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem);
int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem);
void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem);
int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem,
struct iosys_map *map);
void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem,
struct iosys_map *map);
int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct *vma);
int drm_gem_shmem_pin_locked(struct drm_gem_shmem_object *shmem);
void drm_gem_shmem_unpin_locked(struct drm_gem_shmem_object *shmem);
int drm_gem_shmem_madvise(struct drm_gem_shmem_object *shmem, int madv);
static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem)
{
return (shmem->madv > 0) &&
!shmem->vmap_use_count && shmem->sgt &&
!shmem->base.dma_buf && !drm_gem_is_imported(&shmem->base);
}
void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem);
struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem);
struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem);
void drm_gem_shmem_print_info(const struct drm_gem_shmem_object *shmem,
struct drm_printer *p, unsigned int indent);
extern const struct vm_operations_struct drm_gem_shmem_vm_ops;
/*
* GEM object functions
*/
/**
* drm_gem_shmem_object_free - GEM object function for drm_gem_shmem_free()
* @obj: GEM object to free
*
* This function wraps drm_gem_shmem_free(). Drivers that employ the shmem helpers
* should use it as their &drm_gem_object_funcs.free handler.
*/
static inline void drm_gem_shmem_object_free(struct drm_gem_object *obj)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
drm_gem_shmem_free(shmem);
}
/**
* drm_gem_shmem_object_print_info() - Print &drm_gem_shmem_object info for debugfs
* @p: DRM printer
* @indent: Tab indentation level
* @obj: GEM object
*
* This function wraps drm_gem_shmem_print_info(). Drivers that employ the shmem helpers should
* use this function as their &drm_gem_object_funcs.print_info handler.
*/
static inline void drm_gem_shmem_object_print_info(struct drm_printer *p, unsigned int indent,
const struct drm_gem_object *obj)
{
const struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
drm_gem_shmem_print_info(shmem, p, indent);
}
/**
* drm_gem_shmem_object_pin - GEM object function for drm_gem_shmem_pin()
* @obj: GEM object
*
* This function wraps drm_gem_shmem_pin(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.pin handler.
*/
static inline int drm_gem_shmem_object_pin(struct drm_gem_object *obj)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
return drm_gem_shmem_pin_locked(shmem);
}
/**
* drm_gem_shmem_object_unpin - GEM object function for drm_gem_shmem_unpin()
* @obj: GEM object
*
* This function wraps drm_gem_shmem_unpin(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.unpin handler.
*/
static inline void drm_gem_shmem_object_unpin(struct drm_gem_object *obj)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
drm_gem_shmem_unpin_locked(shmem);
}
/**
* drm_gem_shmem_object_get_sg_table - GEM object function for drm_gem_shmem_get_sg_table()
* @obj: GEM object
*
* This function wraps drm_gem_shmem_get_sg_table(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.get_sg_table handler.
*
* Returns:
* A pointer to the scatter/gather table of pinned pages or error pointer on failure.
*/
static inline struct sg_table *drm_gem_shmem_object_get_sg_table(struct drm_gem_object *obj)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
return drm_gem_shmem_get_sg_table(shmem);
}
/*
* drm_gem_shmem_object_vmap - GEM object function for drm_gem_shmem_vmap()
* @obj: GEM object
* @map: Returns the kernel virtual address of the SHMEM GEM object's backing store.
*
* This function wraps drm_gem_shmem_vmap(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.vmap handler.
*
* Returns:
* 0 on success or a negative error code on failure.
*/
static inline int drm_gem_shmem_object_vmap(struct drm_gem_object *obj,
struct iosys_map *map)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
return drm_gem_shmem_vmap(shmem, map);
}
/*
* drm_gem_shmem_object_vunmap - GEM object function for drm_gem_shmem_vunmap()
* @obj: GEM object
* @map: Kernel virtual address where the SHMEM GEM object was mapped
*
* This function wraps drm_gem_shmem_vunmap(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.vunmap handler.
*/
static inline void drm_gem_shmem_object_vunmap(struct drm_gem_object *obj,
struct iosys_map *map)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
drm_gem_shmem_vunmap(shmem, map);
}
/**
* drm_gem_shmem_object_mmap - GEM object function for drm_gem_shmem_mmap()
* @obj: GEM object
* @vma: VMA for the area to be mapped
*
* This function wraps drm_gem_shmem_mmap(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.mmap handler.
*
* Returns:
* 0 on success or a negative error code on failure.
*/
static inline int drm_gem_shmem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
return drm_gem_shmem_mmap(shmem, vma);
}
/*
* Driver ops
*/
struct drm_gem_object *
drm_gem_shmem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach,
struct sg_table *sgt);
int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args);
/**
* DRM_GEM_SHMEM_DRIVER_OPS - Default shmem GEM operations
*
* This macro provides a shortcut for setting the shmem GEM operations in
* the &drm_driver structure.
*/
#define DRM_GEM_SHMEM_DRIVER_OPS \
.gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, \
.dumb_create = drm_gem_shmem_dumb_create
#endif /* __DRM_GEM_SHMEM_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 |
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| amd_asic_type.h | File | 2.35 KB | 0644 |
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| 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 |
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| 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 |
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| drm_debugfs_crc.h | File | 2.76 KB | 0644 |
|
| drm_device.h | File | 8.08 KB | 0644 |
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| drm_drv.h | File | 17.24 KB | 0644 |
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| drm_edid.h | File | 15.5 KB | 0644 |
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| drm_eld.h | File | 4.76 KB | 0644 |
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| 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 |
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| 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 |
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| drm_file.h | File | 14.54 KB | 0644 |
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| 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 |
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| 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 |
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| drm_gem_ttm_helper.h | File | 822 B | 0644 |
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| drm_gem_vram_helper.h | File | 5.73 KB | 0644 |
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| drm_gpusvm.h | File | 16.72 KB | 0644 |
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| drm_gpuvm.h | File | 33.62 KB | 0644 |
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| drm_ioctl.h | File | 5.82 KB | 0644 |
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| drm_kunit_helpers.h | File | 4.12 KB | 0644 |
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| drm_lease.h | File | 1.01 KB | 0644 |
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| 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 |
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| 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 |
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| 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 |
|
| 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 |
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| drm_privacy_screen_consumer.h | File | 1.94 KB | 0644 |
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| 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 |
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| 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 |
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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 |
|