drivers/char/drm/i915_drm.h - linux - Git at Google

 /*
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  */

 #ifndef _I915_DRM_H_
 #define _I915_DRM_H_

 /* Please note that modifications to all structs defined here are
  * subject to backwards-compatibility constraints.
  */

 #include "drm.h"

 /* Each region is a minimum of 16k, and there are at most 255 of them.
  */
 #define I915_NR_TEX_REGIONS 255	/* table size 2k - maximum due to use
 				 * of chars for next/prev indices */
 #define I915_LOG_MIN_TEX_REGION_SIZE 14

 typedef struct _drm_i915_init {
 	enum {
 		I915_INIT_DMA = 0x01,
 		I915_CLEANUP_DMA = 0x02,
 		I915_RESUME_DMA = 0x03
 	} func;
 	unsigned int mmio_offset;
 	int sarea_priv_offset;
 	unsigned int ring_start;
 	unsigned int ring_end;
 	unsigned int ring_size;
 	unsigned int front_offset;
 	unsigned int back_offset;
 	unsigned int depth_offset;
 	unsigned int w;
 	unsigned int h;
 	unsigned int pitch;
 	unsigned int pitch_bits;
 	unsigned int back_pitch;
 	unsigned int depth_pitch;
 	unsigned int cpp;
 	unsigned int chipset;
 } drm_i915_init_t;

 typedef struct _drm_i915_sarea {
 	drm_tex_region_t texList[I915_NR_TEX_REGIONS + 1];
 	int last_upload;	/* last time texture was uploaded */
 	int last_enqueue;	/* last time a buffer was enqueued */
 	int last_dispatch;	/* age of the most recently dispatched buffer */
 	int ctxOwner;		/* last context to upload state */
 	int texAge;
 	int pf_enabled;		/* is pageflipping allowed? */
 	int pf_active;
 	int pf_current_page;	/* which buffer is being displayed? */
 	int perf_boxes;		/* performance boxes to be displayed */
 	int width, height;      /* screen size in pixels */

 	drm_handle_t front_handle;
 	int front_offset;
 	int front_size;

 	drm_handle_t back_handle;
 	int back_offset;
 	int back_size;

 	drm_handle_t depth_handle;
 	int depth_offset;
 	int depth_size;

 	drm_handle_t tex_handle;
 	int tex_offset;
 	int tex_size;
 	int log_tex_granularity;
 	int pitch;
 	int rotation;           /* 0, 90, 180 or 270 */
 	int rotated_offset;
 	int rotated_size;
 	int rotated_pitch;
 	int virtualX, virtualY;

 	unsigned int front_tiled;
 	unsigned int back_tiled;
 	unsigned int depth_tiled;
 	unsigned int rotated_tiled;
 	unsigned int rotated2_tiled;
 } drm_i915_sarea_t;

 /* Flags for perf_boxes
  */
 #define I915_BOX_RING_EMPTY    0x1
 #define I915_BOX_FLIP          0x2
 #define I915_BOX_WAIT          0x4
 #define I915_BOX_TEXTURE_LOAD  0x8
 #define I915_BOX_LOST_CONTEXT  0x10

 /* I915 specific ioctls
  * The device specific ioctl range is 0x40 to 0x79.
  */
 #define DRM_I915_INIT		0x00
 #define DRM_I915_FLUSH		0x01
 #define DRM_I915_FLIP		0x02
 #define DRM_I915_BATCHBUFFER	0x03
 #define DRM_I915_IRQ_EMIT	0x04
 #define DRM_I915_IRQ_WAIT	0x05
 #define DRM_I915_GETPARAM	0x06
 #define DRM_I915_SETPARAM	0x07
 #define DRM_I915_ALLOC		0x08
 #define DRM_I915_FREE		0x09
 #define DRM_I915_INIT_HEAP	0x0a
 #define DRM_I915_CMDBUFFER	0x0b
 #define DRM_I915_DESTROY_HEAP	0x0c
 #define DRM_I915_SET_VBLANK_PIPE	0x0d
 #define DRM_I915_GET_VBLANK_PIPE	0x0e

 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
 #define DRM_IOCTL_I915_FLIP		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
 #define DRM_IOCTL_I915_BATCHBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
 #define DRM_IOCTL_I915_IRQ_EMIT         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
 #define DRM_IOCTL_I915_IRQ_WAIT         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
 #define DRM_IOCTL_I915_GETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
 #define DRM_IOCTL_I915_SETPARAM         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SETPARAM, drm_i915_setparam_t)
 #define DRM_IOCTL_I915_ALLOC            DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_ALLOC, drm_i915_mem_alloc_t)
 #define DRM_IOCTL_I915_FREE             DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)
 #define DRM_IOCTL_I915_INIT_HEAP        DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)
 #define DRM_IOCTL_I915_CMDBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)
 #define DRM_IOCTL_I915_DESTROY_HEAP	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
 #define DRM_IOCTL_I915_SET_VBLANK_PIPE	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
 #define DRM_IOCTL_I915_GET_VBLANK_PIPE	DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)

 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
  */
 typedef struct _drm_i915_batchbuffer {
 	int start;		/* agp offset */
 	int used;		/* nr bytes in use */
 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
 	int num_cliprects;	/* mulitpass with multiple cliprects? */
 	drm_clip_rect_t __user *cliprects;	/* pointer to userspace cliprects */
 } drm_i915_batchbuffer_t;

 /* As above, but pass a pointer to userspace buffer which can be
  * validated by the kernel prior to sending to hardware.
  */
 typedef struct _drm_i915_cmdbuffer {
 	char __user *buf;	/* pointer to userspace command buffer */
 	int sz;			/* nr bytes in buf */
 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
 	int num_cliprects;	/* mulitpass with multiple cliprects? */
 	drm_clip_rect_t __user *cliprects;	/* pointer to userspace cliprects */
 } drm_i915_cmdbuffer_t;

 /* Userspace can request & wait on irq's:
  */
 typedef struct drm_i915_irq_emit {
 	int __user *irq_seq;
 } drm_i915_irq_emit_t;

 typedef struct drm_i915_irq_wait {
 	int irq_seq;
 } drm_i915_irq_wait_t;

 /* Ioctl to query kernel params:
  */
 #define I915_PARAM_IRQ_ACTIVE            1
 #define I915_PARAM_ALLOW_BATCHBUFFER     2
 #define I915_PARAM_LAST_DISPATCH         3

 typedef struct drm_i915_getparam {
 	int param;
 	int __user *value;
 } drm_i915_getparam_t;

 /* Ioctl to set kernel params:
  */
 #define I915_SETPARAM_USE_MI_BATCHBUFFER_START            1
 #define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY             2
 #define I915_SETPARAM_ALLOW_BATCHBUFFER                   3

 typedef struct drm_i915_setparam {
 	int param;
 	int value;
 } drm_i915_setparam_t;

 /* A memory manager for regions of shared memory:
  */
 #define I915_MEM_REGION_AGP 1

 typedef struct drm_i915_mem_alloc {
 	int region;
 	int alignment;
 	int size;
 	int __user *region_offset;	/* offset from start of fb or agp */
 } drm_i915_mem_alloc_t;

 typedef struct drm_i915_mem_free {
 	int region;
 	int region_offset;
 } drm_i915_mem_free_t;

 typedef struct drm_i915_mem_init_heap {
 	int region;
 	int size;
 	int start;
 } drm_i915_mem_init_heap_t;

 /* Allow memory manager to be torn down and re-initialized (eg on
  * rotate):
  */
 typedef struct drm_i915_mem_destroy_heap {
 	int region;
 } drm_i915_mem_destroy_heap_t;

 /* Allow X server to configure which pipes to monitor for vblank signals
  */
 #define	DRM_I915_VBLANK_PIPE_A	1
 #define	DRM_I915_VBLANK_PIPE_B	2

 typedef struct drm_i915_vblank_pipe {
 	int pipe;
 } drm_i915_vblank_pipe_t;

 #endif				/* _I915_DRM_H_ */
	/*
	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
	* All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sub license, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial portions
	* of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*
	*/

	#ifndef _I915_DRM_H_
	#define _I915_DRM_H_

	/* Please note that modifications to all structs defined here are
	* subject to backwards-compatibility constraints.
	*/

	#include "drm.h"

	/* Each region is a minimum of 16k, and there are at most 255 of them.
	*/
	#define I915_NR_TEX_REGIONS 255 /* table size 2k - maximum due to use
	* of chars for next/prev indices */
	#define I915_LOG_MIN_TEX_REGION_SIZE 14

	typedef struct _drm_i915_init {
	enum {
	I915_INIT_DMA = 0x01,
	I915_CLEANUP_DMA = 0x02,
	I915_RESUME_DMA = 0x03
	} func;
	unsigned int mmio_offset;
	int sarea_priv_offset;
	unsigned int ring_start;
	unsigned int ring_end;
	unsigned int ring_size;
	unsigned int front_offset;
	unsigned int back_offset;
	unsigned int depth_offset;
	unsigned int w;
	unsigned int h;
	unsigned int pitch;
	unsigned int pitch_bits;
	unsigned int back_pitch;
	unsigned int depth_pitch;
	unsigned int cpp;
	unsigned int chipset;
	} drm_i915_init_t;

	typedef struct _drm_i915_sarea {
	drm_tex_region_t texList[I915_NR_TEX_REGIONS + 1];
	int last_upload; /* last time texture was uploaded */
	int last_enqueue; /* last time a buffer was enqueued */
	int last_dispatch; /* age of the most recently dispatched buffer */
	int ctxOwner; /* last context to upload state */
	int texAge;
	int pf_enabled; /* is pageflipping allowed? */
	int pf_active;
	int pf_current_page; /* which buffer is being displayed? */
	int perf_boxes; /* performance boxes to be displayed */
	int width, height; /* screen size in pixels */

	drm_handle_t front_handle;
	int front_offset;
	int front_size;

	drm_handle_t back_handle;
	int back_offset;
	int back_size;

	drm_handle_t depth_handle;
	int depth_offset;
	int depth_size;

	drm_handle_t tex_handle;
	int tex_offset;
	int tex_size;
	int log_tex_granularity;
	int pitch;
	int rotation; /* 0, 90, 180 or 270 */
	int rotated_offset;
	int rotated_size;
	int rotated_pitch;
	int virtualX, virtualY;

	unsigned int front_tiled;
	unsigned int back_tiled;
	unsigned int depth_tiled;
	unsigned int rotated_tiled;
	unsigned int rotated2_tiled;
	} drm_i915_sarea_t;

	/* Flags for perf_boxes
	*/
	#define I915_BOX_RING_EMPTY 0x1
	#define I915_BOX_FLIP 0x2
	#define I915_BOX_WAIT 0x4
	#define I915_BOX_TEXTURE_LOAD 0x8
	#define I915_BOX_LOST_CONTEXT 0x10

	/* I915 specific ioctls
	* The device specific ioctl range is 0x40 to 0x79.
	*/
	#define DRM_I915_INIT 0x00
	#define DRM_I915_FLUSH 0x01
	#define DRM_I915_FLIP 0x02
	#define DRM_I915_BATCHBUFFER 0x03
	#define DRM_I915_IRQ_EMIT 0x04
	#define DRM_I915_IRQ_WAIT 0x05
	#define DRM_I915_GETPARAM 0x06
	#define DRM_I915_SETPARAM 0x07
	#define DRM_I915_ALLOC 0x08
	#define DRM_I915_FREE 0x09
	#define DRM_I915_INIT_HEAP 0x0a
	#define DRM_I915_CMDBUFFER 0x0b
	#define DRM_I915_DESTROY_HEAP 0x0c
	#define DRM_I915_SET_VBLANK_PIPE 0x0d
	#define DRM_I915_GET_VBLANK_PIPE 0x0e

	#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
	#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
	#define DRM_IOCTL_I915_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
	#define DRM_IOCTL_I915_BATCHBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
	#define DRM_IOCTL_I915_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
	#define DRM_IOCTL_I915_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
	#define DRM_IOCTL_I915_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
	#define DRM_IOCTL_I915_SETPARAM DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SETPARAM, drm_i915_setparam_t)
	#define DRM_IOCTL_I915_ALLOC DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_ALLOC, drm_i915_mem_alloc_t)
	#define DRM_IOCTL_I915_FREE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)
	#define DRM_IOCTL_I915_INIT_HEAP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)
	#define DRM_IOCTL_I915_CMDBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)
	#define DRM_IOCTL_I915_DESTROY_HEAP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
	#define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
	#define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)

	/* Allow drivers to submit batchbuffers directly to hardware, relying
	* on the security mechanisms provided by hardware.
	*/
	typedef struct _drm_i915_batchbuffer {
	int start; /* agp offset */
	int used; /* nr bytes in use */
	int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
	int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
	int num_cliprects; /* mulitpass with multiple cliprects? */
	drm_clip_rect_t __user cliprects; / pointer to userspace cliprects */
	} drm_i915_batchbuffer_t;

	/* As above, but pass a pointer to userspace buffer which can be
	* validated by the kernel prior to sending to hardware.
	*/
	typedef struct _drm_i915_cmdbuffer {
	char __user buf; / pointer to userspace command buffer */
	int sz; /* nr bytes in buf */
	int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
	int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
	int num_cliprects; /* mulitpass with multiple cliprects? */
	drm_clip_rect_t __user cliprects; / pointer to userspace cliprects */
	} drm_i915_cmdbuffer_t;

	/* Userspace can request & wait on irq's:
	*/
	typedef struct drm_i915_irq_emit {
	int __user *irq_seq;
	} drm_i915_irq_emit_t;

	typedef struct drm_i915_irq_wait {
	int irq_seq;
	} drm_i915_irq_wait_t;

	/* Ioctl to query kernel params:
	*/
	#define I915_PARAM_IRQ_ACTIVE 1
	#define I915_PARAM_ALLOW_BATCHBUFFER 2
	#define I915_PARAM_LAST_DISPATCH 3

	typedef struct drm_i915_getparam {
	int param;
	int __user *value;
	} drm_i915_getparam_t;

	/* Ioctl to set kernel params:
	*/
	#define I915_SETPARAM_USE_MI_BATCHBUFFER_START 1
	#define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY 2
	#define I915_SETPARAM_ALLOW_BATCHBUFFER 3

	typedef struct drm_i915_setparam {
	int param;
	int value;
	} drm_i915_setparam_t;

	/* A memory manager for regions of shared memory:
	*/
	#define I915_MEM_REGION_AGP 1

	typedef struct drm_i915_mem_alloc {
	int region;
	int alignment;
	int size;
	int __user region_offset; / offset from start of fb or agp */
	} drm_i915_mem_alloc_t;

	typedef struct drm_i915_mem_free {
	int region;
	int region_offset;
	} drm_i915_mem_free_t;

	typedef struct drm_i915_mem_init_heap {
	int region;
	int size;
	int start;
	} drm_i915_mem_init_heap_t;

	/* Allow memory manager to be torn down and re-initialized (eg on
	* rotate):
	*/
	typedef struct drm_i915_mem_destroy_heap {
	int region;
	} drm_i915_mem_destroy_heap_t;

	/* Allow X server to configure which pipes to monitor for vblank signals
	*/
	#define DRM_I915_VBLANK_PIPE_A 1
	#define DRM_I915_VBLANK_PIPE_B 2

	typedef struct drm_i915_vblank_pipe {
	int pipe;
	} drm_i915_vblank_pipe_t;

	#endif /* _I915_DRM_H_ */