drivers/char/drm/i915_drm.h

   1 #ifndef _I915_DRM_H_
   2 #define _I915_DRM_H_
   3
   4 /* Please note that modifications to all structs defined here are
   5  * subject to backwards-compatibility constraints.
   6  */
   7
   8 #include "drm.h"
   9
  10 /* Each region is a minimum of 16k, and there are at most 255 of them.
  11  */
  12 #define I915_NR_TEX_REGIONS 255 /* table size 2k - maximum due to use
  13                                  * of chars for next/prev indices */
  14 #define I915_LOG_MIN_TEX_REGION_SIZE 14
  15
  16 typedef struct _drm_i915_init {
  17         enum {
  18                 I915_INIT_DMA = 0x01,
  19                 I915_CLEANUP_DMA = 0x02,
  20                 I915_RESUME_DMA = 0x03
  21         } func;
  22         unsigned int mmio_offset;
  23         int sarea_priv_offset;
  24         unsigned int ring_start;
  25         unsigned int ring_end;
  26         unsigned int ring_size;
  27         unsigned int front_offset;
  28         unsigned int back_offset;
  29         unsigned int depth_offset;
  30         unsigned int w;
  31         unsigned int h;
  32         unsigned int pitch;
  33         unsigned int pitch_bits;
  34         unsigned int back_pitch;
  35         unsigned int depth_pitch;
  36         unsigned int cpp;
  37         unsigned int chipset;
  38 } drm_i915_init_t;
  39
  40 typedef struct _drm_i915_sarea {
  41         drm_tex_region_t texList[I915_NR_TEX_REGIONS + 1];
  42         int last_upload;        /* last time texture was uploaded */
  43         int last_enqueue;       /* last time a buffer was enqueued */
  44         int last_dispatch;      /* age of the most recently dispatched buffer */
  45         int ctxOwner;           /* last context to upload state */
  46         int texAge;
  47         int pf_enabled;         /* is pageflipping allowed? */
  48         int pf_active;
  49         int pf_current_page;    /* which buffer is being displayed? */
  50         int perf_boxes;         /* performance boxes to be displayed */
  51 } drm_i915_sarea_t;
  52
  53 /* Flags for perf_boxes
  54  */
  55 #define I915_BOX_RING_EMPTY    0x1
  56 #define I915_BOX_FLIP          0x2
  57 #define I915_BOX_WAIT          0x4
  58 #define I915_BOX_TEXTURE_LOAD  0x8
  59 #define I915_BOX_LOST_CONTEXT  0x10
  60
  61 /* I915 specific ioctls
  62  * The device specific ioctl range is 0x40 to 0x79.
  63  */
  64 #define DRM_IOCTL_I915_INIT             DRM_IOW( 0x40, drm_i915_init_t)
  65 #define DRM_IOCTL_I915_FLUSH            DRM_IO ( 0x41)
  66 #define DRM_IOCTL_I915_FLIP             DRM_IO ( 0x42)
  67 #define DRM_IOCTL_I915_BATCHBUFFER      DRM_IOW( 0x43, drm_i915_batchbuffer_t)
  68 #define DRM_IOCTL_I915_IRQ_EMIT         DRM_IOWR(0x44, drm_i915_irq_emit_t)
  69 #define DRM_IOCTL_I915_IRQ_WAIT         DRM_IOW( 0x45, drm_i915_irq_wait_t)
  70 #define DRM_IOCTL_I915_GETPARAM         DRM_IOWR(0x46, drm_i915_getparam_t)
  71 #define DRM_IOCTL_I915_SETPARAM         DRM_IOW( 0x47, drm_i915_setparam_t)
  72 #define DRM_IOCTL_I915_ALLOC            DRM_IOWR(0x48, drm_i915_mem_alloc_t)
  73 #define DRM_IOCTL_I915_FREE             DRM_IOW( 0x49, drm_i915_mem_free_t)
  74 #define DRM_IOCTL_I915_INIT_HEAP        DRM_IOW( 0x4a, drm_i915_mem_init_heap_t)
  75 #define DRM_IOCTL_I915_CMDBUFFER        DRM_IOW( 0x4b, drm_i915_cmdbuffer_t)
  76
  77 /* Allow drivers to submit batchbuffers directly to hardware, relying
  78  * on the security mechanisms provided by hardware.
  79  */
  80 typedef struct _drm_i915_batchbuffer {
  81         int start;              /* agp offset */
  82         int used;               /* nr bytes in use */
  83         int DR1;                /* hw flags for GFX_OP_DRAWRECT_INFO */
  84         int DR4;                /* window origin for GFX_OP_DRAWRECT_INFO */
  85         int num_cliprects;      /* mulitpass with multiple cliprects? */
  86         drm_clip_rect_t __user *cliprects;      /* pointer to userspace cliprects */
  87 } drm_i915_batchbuffer_t;
  88
  89 /* As above, but pass a pointer to userspace buffer which can be
  90  * validated by the kernel prior to sending to hardware.
  91  */
  92 typedef struct _drm_i915_cmdbuffer {
  93         char __user *buf;       /* pointer to userspace command buffer */
  94         int sz;                 /* nr bytes in buf */
  95         int DR1;                /* hw flags for GFX_OP_DRAWRECT_INFO */
  96         int DR4;                /* window origin for GFX_OP_DRAWRECT_INFO */
  97         int num_cliprects;      /* mulitpass with multiple cliprects? */
  98         drm_clip_rect_t __user *cliprects;      /* pointer to userspace cliprects */
  99 } drm_i915_cmdbuffer_t;
 100
 101 /* Userspace can request & wait on irq's:
 102  */
 103 typedef struct drm_i915_irq_emit {
 104         int __user *irq_seq;
 105 } drm_i915_irq_emit_t;
 106
 107 typedef struct drm_i915_irq_wait {
 108         int irq_seq;
 109 } drm_i915_irq_wait_t;
 110
 111 /* Ioctl to query kernel params:
 112  */
 113 #define I915_PARAM_IRQ_ACTIVE            1
 114 #define I915_PARAM_ALLOW_BATCHBUFFER     2
 115
 116 typedef struct drm_i915_getparam {
 117         int param;
 118         int __user *value;
 119 } drm_i915_getparam_t;
 120
 121 /* Ioctl to set kernel params:
 122  */
 123 #define I915_SETPARAM_USE_MI_BATCHBUFFER_START            1
 124 #define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY             2
 125 #define I915_SETPARAM_ALLOW_BATCHBUFFER                   3
 126
 127 typedef struct drm_i915_setparam {
 128         int param;
 129         int value;
 130 } drm_i915_setparam_t;
 131
 132 /* A memory manager for regions of shared memory:
 133  */
 134 #define I915_MEM_REGION_AGP 1
 135
 136 typedef struct drm_i915_mem_alloc {
 137         int region;
 138         int alignment;
 139         int size;
 140         int __user *region_offset;      /* offset from start of fb or agp */
 141 } drm_i915_mem_alloc_t;
 142
 143 typedef struct drm_i915_mem_free {
 144         int region;
 145         int region_offset;
 146 } drm_i915_mem_free_t;
 147
 148 typedef struct drm_i915_mem_init_heap {
 149         int region;
 150         int size;
 151         int start;
 152 } drm_i915_mem_init_heap_t;
 153
 154 #endif                          /* _I915_DRM_H_ */