#include <linux/spinlock.h>
#include <linux/shmem_fs.h>
#include "omap_drv.h"
#include "omap_dmm_tiler.h"

Data Structures
struct	omap_gem_object

struct	usergart_entry

struct	omap_gem_sync_waiter

Macros
#define	to_omap_bo(x) container_of(x, struct omap_gem_object, base)

#define	OMAP_BO_DMA 0x01000000 /* actually is physically contiguous */

#define	OMAP_BO_EXT_SYNC 0x02000000 /* externally allocated sync object */

#define	OMAP_BO_EXT_MEM 0x04000000 /* externally allocated memory */

#define	NUM_USERGART_ENTRIES 2

#define	SYNCDBG 0

#define	SYNC(fmt,...)

Functions
struct page **	_drm_gem_get_pages (struct drm_gem_object *obj, gfp_t gfpmask)

void	_drm_gem_put_pages (struct drm_gem_object obj, struct page *pages, bool dirty, bool accessed)

int	_drm_gem_create_mmap_offset_size (struct drm_gem_object *obj, size_t size)

uint32_t	omap_gem_flags (struct drm_gem_object *obj)

uint64_t	omap_gem_mmap_offset (struct drm_gem_object *obj)

size_t	omap_gem_mmap_size (struct drm_gem_object *obj)

int	omap_gem_tiled_size (struct drm_gem_object obj, uint16_t w, uint16_t *h)

int	omap_gem_fault (struct vm_area_struct vma, struct vm_fault vmf)

int	omap_gem_mmap (struct file filp, struct vm_area_struct vma)

int	omap_gem_mmap_obj (struct drm_gem_object obj, struct vm_area_struct vma)

int	omap_gem_dumb_create (struct drm_file file, struct drm_device dev, struct drm_mode_create_dumb *args)

int	omap_gem_dumb_destroy (struct drm_file file, struct drm_device dev, uint32_t handle)

int	omap_gem_dumb_map_offset (struct drm_file file, struct drm_device dev, uint32_t handle, uint64_t *offset)

int	omap_gem_roll (struct drm_gem_object *obj, uint32_t roll)

void	omap_gem_cpu_sync (struct drm_gem_object *obj, int pgoff)

void	omap_gem_dma_sync (struct drm_gem_object *obj, enum dma_data_direction dir)

int	omap_gem_get_paddr (struct drm_gem_object obj, dma_addr_t paddr, bool remap)

int	omap_gem_put_paddr (struct drm_gem_object *obj)

int	omap_gem_rotated_paddr (struct drm_gem_object obj, uint32_t orient, int x, int y, dma_addr_t paddr)

int	omap_gem_tiled_stride (struct drm_gem_object *obj, uint32_t orient)

int	omap_gem_get_pages (struct drm_gem_object obj, struct page **pages, bool remap)

int	omap_gem_put_pages (struct drm_gem_object *obj)

void *	omap_gem_vaddr (struct drm_gem_object *obj)

void	omap_gem_op_update (void)

int	omap_gem_op_start (struct drm_gem_object *obj, enum omap_gem_op op)

int	omap_gem_op_finish (struct drm_gem_object *obj, enum omap_gem_op op)

int	omap_gem_op_sync (struct drm_gem_object *obj, enum omap_gem_op op)

int	omap_gem_op_async (struct drm_gem_object obj, enum omap_gem_op op, void(fxn)(void arg), void arg)

int	omap_gem_set_sync_object (struct drm_gem_object obj, void syncobj)

int	omap_gem_init_object (struct drm_gem_object *obj)

void	omap_gem_free_object (struct drm_gem_object *obj)

int	omap_gem_new_handle (struct drm_device dev, struct drm_file file, union omap_gem_size gsize, uint32_t flags, uint32_t *handle)

struct drm_gem_object *	omap_gem_new (struct drm_device *dev, union omap_gem_size gsize, uint32_t flags)

void	omap_gem_init (struct drm_device *dev)

void	omap_gem_deinit (struct drm_device *dev)

Macro Definition Documentation

#define NUM_USERGART_ENTRIES 2

Definition at line 135 of file omap_gem.c.

#define OMAP_BO_DMA 0x01000000 /* actually is physically contiguous */

Definition at line 40 of file omap_gem.c.

#define OMAP_BO_EXT_MEM 0x04000000 /* externally allocated memory */

Definition at line 42 of file omap_gem.c.

#define OMAP_BO_EXT_SYNC 0x02000000 /* externally allocated sync object */

Definition at line 41 of file omap_gem.c.

#define SYNC	(	fmt,
		...
	)

Value:

do { if (SYNCDBG) \
        printk(KERN_ERR "%s:%d: "fmt"\n", \
                __func__, __LINE__, ##__VA_ARGS__); \
    } while (0)

Definition at line 1052 of file omap_gem.c.

#define SYNCDBG 0

Definition at line 1051 of file omap_gem.c.

#define to_omap_bo ( x ) container_of(x, struct omap_gem_object, base)

Definition at line 37 of file omap_gem.c.

Function Documentation

int _drm_gem_create_mmap_offset_size	(	struct drm_gem_object *	obj,
		size_t	size
	)

Definition at line 117 of file omap_gem_helpers.c.

struct page** _drm_gem_get_pages	(	struct drm_gem_object *	obj,
		gfp_t	gfpmask
	)

read

drm_gem_get_pages - helper to allocate backing pages for a GEM object : obj in question : gfp mask of requested pages

Definition at line 35 of file omap_gem_helpers.c.

void _drm_gem_put_pages	(	struct drm_gem_object *	obj,
		struct page **	pages,
		bool	dirty,
		bool	accessed
	)

drm_gem_put_pages - helper to free backing pages for a GEM object : obj in question : pages to free

Definition at line 95 of file omap_gem_helpers.c.

void omap_gem_cpu_sync	(	struct drm_gem_object *	obj,
		int	pgoff
	)

Definition at line 717 of file omap_gem.c.

void omap_gem_deinit ( struct drm_device * dev )

Definition at line 1485 of file omap_gem.c.

void omap_gem_dma_sync	(	struct drm_gem_object *	obj,
		enum dma_data_direction	dir
	)

Definition at line 730 of file omap_gem.c.

int omap_gem_dumb_create	(	struct drm_file *	file,
		struct drm_device *	dev,
		struct drm_mode_create_dumb *	args
	)

omap_gem_dumb_create - create a dumb buffer : our client file : our device : the requested arguments copied from userspace

Allocate a buffer suitable for use for a frame buffer of the form described by user space. Give userspace a handle by which to reference it.

Definition at line 615 of file omap_gem.c.

int omap_gem_dumb_destroy	(	struct drm_file *	file,
		struct drm_device *	dev,
		uint32_t	handle
	)

Definition at line 640 of file omap_gem.c.

int omap_gem_dumb_map_offset	(	struct drm_file *	file,
		struct drm_device *	dev,
		uint32_t	handle,
		uint64_t *	offset
	)

Definition at line 656 of file omap_gem.c.

int omap_gem_fault	(	struct vm_area_struct *	vma,
		struct vm_fault *	vmf
	)

omap_gem_fault - pagefault handler for GEM objects : the VMA of the GEM object : fault detail

Invoked when a fault occurs on an mmap of a GEM managed area. GEM does most of the work for us including the actual map/unmap calls but we need to do the actual page work.

The VMA was set up by GEM. In doing so it also ensured that the vma->vm_private_data points to the GEM object that is backing this mapping.

Definition at line 509 of file omap_gem.c.

uint32_t omap_gem_flags ( struct drm_gem_object * obj )

Definition at line 302 of file omap_gem.c.

void omap_gem_free_object ( struct drm_gem_object * obj )

Definition at line 1277 of file omap_gem.c.

int omap_gem_get_paddr	(	struct drm_gem_object *	obj,
		dma_addr_t *	paddr,
		bool	remap
	)

Definition at line 760 of file omap_gem.c.

int omap_gem_get_pages	(	struct drm_gem_object *	obj,
		struct page ***	pages,
		bool	remap
	)

Definition at line 922 of file omap_gem.c.

void omap_gem_init ( struct drm_device * dev )

Definition at line 1430 of file omap_gem.c.

int omap_gem_init_object ( struct drm_gem_object * obj )

Definition at line 1269 of file omap_gem.c.

int omap_gem_mmap	(	struct file *	filp,
		struct vm_area_struct *	vma
	)

We override mainly to fix up some of the vm mapping flags..

Definition at line 555 of file omap_gem.c.

int omap_gem_mmap_obj	(	struct drm_gem_object *	obj,
		struct vm_area_struct *	vma
	)

Definition at line 568 of file omap_gem.c.

uint64_t omap_gem_mmap_offset ( struct drm_gem_object * obj )

Definition at line 328 of file omap_gem.c.

size_t omap_gem_mmap_size ( struct drm_gem_object * obj )

get mmap size

Definition at line 338 of file omap_gem.c.

struct drm_gem_object* omap_gem_new	(	struct drm_device *	dev,
		union omap_gem_size	gsize,
		uint32_t	flags
	)

read

Definition at line 1345 of file omap_gem.c.

int omap_gem_new_handle	(	struct drm_device *	dev,
		struct drm_file *	file,
		union omap_gem_size	gsize,
		uint32_t	flags,
		uint32_t *	handle
	)

Definition at line 1321 of file omap_gem.c.

int omap_gem_op_async	(	struct drm_gem_object *	obj,
		enum omap_gem_op	op,
		void()(void arg)	fxn,
		void *	arg
	)

Definition at line 1196 of file omap_gem.c.

int omap_gem_op_finish	(	struct drm_gem_object *	obj,
		enum omap_gem_op	op
	)

Definition at line 1126 of file omap_gem.c.

int omap_gem_op_start	(	struct drm_gem_object *	obj,
		enum omap_gem_op	op
	)

Definition at line 1121 of file omap_gem.c.

int omap_gem_op_sync	(	struct drm_gem_object *	obj,
		enum omap_gem_op	op
	)

Definition at line 1140 of file omap_gem.c.

void omap_gem_op_update ( void )

Definition at line 1113 of file omap_gem.c.

int omap_gem_put_paddr ( struct drm_gem_object * obj )

Definition at line 832 of file omap_gem.c.

int omap_gem_put_pages ( struct drm_gem_object * obj )

Definition at line 940 of file omap_gem.c.

int omap_gem_roll	(	struct drm_gem_object *	obj,
		uint32_t	roll
	)

Definition at line 682 of file omap_gem.c.

int omap_gem_rotated_paddr	(	struct drm_gem_object *	obj,
		uint32_t	orient,
		int	x,
		int	y,
		dma_addr_t *	paddr
	)

Definition at line 864 of file omap_gem.c.

int omap_gem_set_sync_object	(	struct drm_gem_object *	obj,
		void *	syncobj
	)

Definition at line 1237 of file omap_gem.c.

int omap_gem_tiled_size	(	struct drm_gem_object *	obj,
		uint16_t *	w,
		uint16_t *	h
	)

Definition at line 358 of file omap_gem.c.

int omap_gem_tiled_stride	(	struct drm_gem_object *	obj,
		uint32_t	orient
	)

Definition at line 881 of file omap_gem.c.

void* omap_gem_vaddr ( struct drm_gem_object * obj )

Definition at line 953 of file omap_gem.c.

Variable Documentation

struct usergart_entry entry[NUM_USERGART_ENTRIES]

Definition at line 144 of file omap_gem.c.

int height

Definition at line 145 of file omap_gem.c.

int height_shift

Definition at line 146 of file omap_gem.c.

int last

Definition at line 149 of file omap_gem.c.

int slot_shift

Definition at line 147 of file omap_gem.c.

int stride_pfn

Definition at line 148 of file omap_gem.c.

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation

Variable Documentation