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Name	Size	Permission
bridge	[ DIR ]	drwxr-xr-x
i2c	[ DIR ]	drwxr-xr-x
ttm	[ DIR ]	drwxr-xr-x
amd_asic_type.h	1.66 KB	-rw-r--r--
ati_pcigart.h	731 B	-rw-r--r--
drmP.h	3.05 KB	-rw-r--r--
drm_agpsupport.h	3.44 KB	-rw-r--r--
drm_atomic.h	34.86 KB	-rw-r--r--
drm_atomic_helper.h	9.1 KB	-rw-r--r--
drm_atomic_state_helper.h	3.32 KB	-rw-r--r--
drm_atomic_uapi.h	2.17 KB	-rw-r--r--
drm_audio_component.h	3.67 KB	-rw-r--r--
drm_auth.h	3.53 KB	-rw-r--r--
drm_blend.h	2.35 KB	-rw-r--r--
drm_bridge.h	16.85 KB	-rw-r--r--
drm_cache.h	2.85 KB	-rw-r--r--
drm_client.h	4.5 KB	-rw-r--r--
drm_color_mgmt.h	3.18 KB	-rw-r--r--
drm_connector.h	51.59 KB	-rw-r--r--
drm_crtc.h	41.04 KB	-rw-r--r--
drm_crtc_helper.h	2.39 KB	-rw-r--r--
drm_damage_helper.h	3.97 KB	-rw-r--r--
drm_debugfs.h	3.41 KB	-rw-r--r--
drm_debugfs_crc.h	2.66 KB	-rw-r--r--
drm_device.h	8.35 KB	-rw-r--r--
drm_displayid.h	3.24 KB	-rw-r--r--
drm_dp_dual_mode_helper.h	4.43 KB	-rw-r--r--
drm_dp_helper.h	56.15 KB	-rw-r--r--
drm_dp_mst_helper.h	21.92 KB	-rw-r--r--
drm_drv.h	26.12 KB	-rw-r--r--
drm_dsc.h	16.21 KB	-rw-r--r--
drm_edid.h	15.75 KB	-rw-r--r--
drm_encoder.h	8.47 KB	-rw-r--r--
drm_encoder_slave.h	6.44 KB	-rw-r--r--
drm_fb_cma_helper.h	392 B	-rw-r--r--
drm_fb_helper.h	15.9 KB	-rw-r--r--
drm_file.h	10.67 KB	-rw-r--r--
drm_fixed.h	4.71 KB	-rw-r--r--
drm_flip_work.h	3.01 KB	-rw-r--r--
drm_format_helper.h	1.15 KB	-rw-r--r--
drm_fourcc.h	9.75 KB	-rw-r--r--
drm_framebuffer.h	9.56 KB	-rw-r--r--
drm_gem.h	12.06 KB	-rw-r--r--
drm_gem_cma_helper.h	4.46 KB	-rw-r--r--
drm_gem_framebuffer_helper.h	1.26 KB	-rw-r--r--
drm_gem_shmem_helper.h	5.08 KB	-rw-r--r--
drm_gem_vram_helper.h	3.73 KB	-rw-r--r--
drm_hashtab.h	3.01 KB	-rw-r--r--
drm_hdcp.h	8.55 KB	-rw-r--r--
drm_ioctl.h	6.23 KB	-rw-r--r--
drm_irq.h	1.29 KB	-rw-r--r--
drm_lease.h	1010 B	-rw-r--r--
drm_legacy.h	6.58 KB	-rw-r--r--
drm_mipi_dbi.h	4.36 KB	-rw-r--r--
drm_mipi_dsi.h	10.59 KB	-rw-r--r--
drm_mm.h	17.39 KB	-rw-r--r--
drm_mode_config.h	31.28 KB	-rw-r--r--
drm_mode_object.h	5.17 KB	-rw-r--r--
drm_modes.h	18.77 KB	-rw-r--r--
drm_modeset_helper.h	1.77 KB	-rw-r--r--
drm_modeset_helper_vtables.h	51.53 KB	-rw-r--r--
drm_modeset_lock.h	6.38 KB	-rw-r--r--
drm_of.h	3.37 KB	-rw-r--r--
drm_os_linux.h	2.04 KB	-rw-r--r--
drm_panel.h	5.16 KB	-rw-r--r--
drm_pci.h	2.23 KB	-rw-r--r--
drm_pciids.h	66.47 KB	-rw-r--r--
drm_plane.h	26.26 KB	-rw-r--r--
drm_plane_helper.h	1.75 KB	-rw-r--r--
drm_prime.h	3.86 KB	-rw-r--r--
drm_print.h	14.07 KB	-rw-r--r--
drm_probe_helper.h	848 B	-rw-r--r--
drm_property.h	11.49 KB	-rw-r--r--
drm_rect.h	5.61 KB	-rw-r--r--
drm_scdc_helper.h	4.34 KB	-rw-r--r--
drm_self_refresh_helper.h	594 B	-rw-r--r--
drm_simple_kms_helper.h	6.01 KB	-rw-r--r--
drm_syncobj.h	3.85 KB	-rw-r--r--
drm_sysfs.h	442 B	-rw-r--r--
drm_util.h	2.58 KB	-rw-r--r--
drm_utils.h	504 B	-rw-r--r--
drm_vblank.h	7.63 KB	-rw-r--r--
drm_vma_manager.h	8.14 KB	-rw-r--r--
drm_vram_mm_helper.h	2.86 KB	-rw-r--r--
drm_writeback.h	3.89 KB	-rw-r--r--
gma_drm.h	413 B	-rw-r--r--
gpu_scheduler.h	12.46 KB	-rw-r--r--
i915_component.h	1.76 KB	-rw-r--r--
i915_drm.h	3.77 KB	-rw-r--r--
i915_mei_hdcp_interface.h	4.91 KB	-rw-r--r--
i915_pciids.h	19.34 KB	-rw-r--r--
intel-gtt.h	996 B	-rw-r--r--
intel_lpe_audio.h	1.72 KB	-rw-r--r--
spsc_queue.h	3.06 KB	-rw-r--r--

Code Editor : drm_gem_cma_helper.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DRM_GEM_CMA_HELPER_H__
#define __DRM_GEM_CMA_HELPER_H__

#include <drm/drm_file.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_gem.h>

struct drm_mode_create_dumb;

/**
 * struct drm_gem_cma_object - GEM object backed by CMA memory allocations
 * @base: base GEM object
 * @paddr: physical address of the backing memory
 * @sgt: scatter/gather table for imported PRIME buffers. The table can have
 *       more than one entry but they are guaranteed to have contiguous
 *       DMA addresses.
 * @vaddr: kernel virtual address of the backing memory
 */
struct drm_gem_cma_object {
	struct drm_gem_object base;
	dma_addr_t paddr;
	struct sg_table *sgt;

/* For objects with DMA memory allocated by GEM CMA */
	void *vaddr;
};

#define to_drm_gem_cma_obj(gem_obj) \
	container_of(gem_obj, struct drm_gem_cma_object, base)

#ifndef CONFIG_MMU
#define DRM_GEM_CMA_UNMAPPED_AREA_FOPS \
	.get_unmapped_area	= drm_gem_cma_get_unmapped_area,
#else
#define DRM_GEM_CMA_UNMAPPED_AREA_FOPS
#endif

/**
 * DEFINE_DRM_GEM_CMA_FOPS() - macro to generate file operations for CMA drivers
 * @name: name for the generated structure
 *
 * This macro autogenerates a suitable &struct file_operations for CMA based
 * drivers, which can be assigned to &drm_driver.fops. Note that this structure
 * cannot be shared between drivers, because it contains a reference to the
 * current module using THIS_MODULE.
 *
 * Note that the declaration is already marked as static - if you need a
 * non-static version of this you're probably doing it wrong and will break the
 * THIS_MODULE reference by accident.
 */
#define DEFINE_DRM_GEM_CMA_FOPS(name) \
	static const struct file_operations name = {\
		.owner		= THIS_MODULE,\
		.open		= drm_open,\
		.release	= drm_release,\
		.unlocked_ioctl	= drm_ioctl,\
		.compat_ioctl	= drm_compat_ioctl,\
		.poll		= drm_poll,\
		.read		= drm_read,\
		.llseek		= noop_llseek,\
		.mmap		= drm_gem_cma_mmap,\
		DRM_GEM_CMA_UNMAPPED_AREA_FOPS \
	}

/* free GEM object */
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);

/* create memory region for DRM framebuffer */
int drm_gem_cma_dumb_create_internal(struct drm_file *file_priv,
				     struct drm_device *drm,
				     struct drm_mode_create_dumb *args);

/* create memory region for DRM framebuffer */
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
			    struct drm_device *drm,
			    struct drm_mode_create_dumb *args);

/* set vm_flags and we can change the VM attribute to other one at here */
int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);

/* allocate physical memory */
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
					      size_t size);

extern const struct vm_operations_struct drm_gem_cma_vm_ops;

#ifndef CONFIG_MMU
unsigned long drm_gem_cma_get_unmapped_area(struct file *filp,
					    unsigned long addr,
					    unsigned long len,
					    unsigned long pgoff,
					    unsigned long flags);
#endif

void drm_gem_cma_print_info(struct drm_printer *p, unsigned int indent,
			    const struct drm_gem_object *obj);

struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *
drm_gem_cma_prime_import_sg_table(struct drm_device *dev,
				  struct dma_buf_attachment *attach,
				  struct sg_table *sgt);
int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
			   struct vm_area_struct *vma);
void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj);
void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr);

struct drm_gem_object *
drm_cma_gem_create_object_default_funcs(struct drm_device *dev, size_t size);

/**
 * DRM_GEM_CMA_VMAP_DRIVER_OPS - CMA GEM driver operations ensuring a virtual
 *                               address on the buffer
 *
 * This macro provides a shortcut for setting the default GEM operations in the
 * &drm_driver structure for drivers that need the virtual address also on
 * imported buffers.
 */
#define DRM_GEM_CMA_VMAP_DRIVER_OPS \
	.gem_create_object	= drm_cma_gem_create_object_default_funcs, \
	.dumb_create		= drm_gem_cma_dumb_create, \
	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table_vmap, \
	.gem_prime_mmap		= drm_gem_prime_mmap

struct drm_gem_object *
drm_gem_cma_prime_import_sg_table_vmap(struct drm_device *drm,
				       struct dma_buf_attachment *attach,
				       struct sg_table *sgt);

#endif /* __DRM_GEM_CMA_HELPER_H__ */

${this.title}

Code Editor : drm_gem_cma_helper.h