include/uapi/drm/savage_drm.h

   1 /* savage_drm.h -- Public header for the savage driver
   2  *
   3  * Copyright 2004  Felix Kuehling
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sub license,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  * NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  22  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #ifndef __SAVAGE_DRM_H__
  27 #define __SAVAGE_DRM_H__
  28
  29 #include "drm.h"
  30
  31 #if defined(__cplusplus)
  32 extern "C" {
  33 #endif
  34
  35 #ifndef __SAVAGE_SAREA_DEFINES__
  36 #define __SAVAGE_SAREA_DEFINES__
  37
  38 /* 2 heaps (1 for card, 1 for agp), each divided into up to 128
  39  * regions, subject to a minimum region size of (1<<16) == 64k.
  40  *
  41  * Clients may subdivide regions internally, but when sharing between
  42  * clients, the region size is the minimum granularity.
  43  */
  44
  45 #define SAVAGE_CARD_HEAP                0
  46 #define SAVAGE_AGP_HEAP                 1
  47 #define SAVAGE_NR_TEX_HEAPS             2
  48 #define SAVAGE_NR_TEX_REGIONS           16
  49 #define SAVAGE_LOG_MIN_TEX_REGION_SIZE  16
  50
  51 #endif                          /* __SAVAGE_SAREA_DEFINES__ */
  52
  53 typedef struct _drm_savage_sarea {
  54         /* LRU lists for texture memory in agp space and on the card.
  55          */
  56         struct drm_tex_region texList[SAVAGE_NR_TEX_HEAPS][SAVAGE_NR_TEX_REGIONS +
  57                                                       1];
  58         unsigned int texAge[SAVAGE_NR_TEX_HEAPS];
  59
  60         /* Mechanism to validate card state.
  61          */
  62         int ctxOwner;
  63 } drm_savage_sarea_t, *drm_savage_sarea_ptr;
  64
  65 /* Savage-specific ioctls
  66  */
  67 #define DRM_SAVAGE_BCI_INIT             0x00
  68 #define DRM_SAVAGE_BCI_CMDBUF           0x01
  69 #define DRM_SAVAGE_BCI_EVENT_EMIT       0x02
  70 #define DRM_SAVAGE_BCI_EVENT_WAIT       0x03
  71
  72 #define DRM_IOCTL_SAVAGE_BCI_INIT               DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_INIT, drm_savage_init_t)
  73 #define DRM_IOCTL_SAVAGE_BCI_CMDBUF             DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_CMDBUF, drm_savage_cmdbuf_t)
  74 #define DRM_IOCTL_SAVAGE_BCI_EVENT_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_EMIT, drm_savage_event_emit_t)
  75 #define DRM_IOCTL_SAVAGE_BCI_EVENT_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_WAIT, drm_savage_event_wait_t)
  76
  77 #define SAVAGE_DMA_PCI  1
  78 #define SAVAGE_DMA_AGP  3
  79 typedef struct drm_savage_init {
  80         enum {
  81                 SAVAGE_INIT_BCI = 1,
  82                 SAVAGE_CLEANUP_BCI = 2
  83         } func;
  84         unsigned int sarea_priv_offset;
  85
  86         /* some parameters */
  87         unsigned int cob_size;
  88         unsigned int bci_threshold_lo, bci_threshold_hi;
  89         unsigned int dma_type;
  90
  91         /* frame buffer layout */
  92         unsigned int fb_bpp;
  93         unsigned int front_offset, front_pitch;
  94         unsigned int back_offset, back_pitch;
  95         unsigned int depth_bpp;
  96         unsigned int depth_offset, depth_pitch;
  97
  98         /* local textures */
  99         unsigned int texture_offset;
 100         unsigned int texture_size;
 101
 102         /* physical locations of non-permanent maps */
 103         unsigned long status_offset;
 104         unsigned long buffers_offset;
 105         unsigned long agp_textures_offset;
 106         unsigned long cmd_dma_offset;
 107 } drm_savage_init_t;
 108
 109 typedef union drm_savage_cmd_header drm_savage_cmd_header_t;
 110 typedef struct drm_savage_cmdbuf {
 111         /* command buffer in client's address space */
 112         drm_savage_cmd_header_t __user *cmd_addr;
 113         unsigned int size;      /* size of the command buffer in 64bit units */
 114
 115         unsigned int dma_idx;   /* DMA buffer index to use */
 116         int discard;            /* discard DMA buffer when done */
 117         /* vertex buffer in client's address space */
 118         unsigned int __user *vb_addr;
 119         unsigned int vb_size;   /* size of client vertex buffer in bytes */
 120         unsigned int vb_stride; /* stride of vertices in 32bit words */
 121         /* boxes in client's address space */
 122         struct drm_clip_rect __user *box_addr;
 123         unsigned int nbox;      /* number of clipping boxes */
 124 } drm_savage_cmdbuf_t;
 125
 126 #define SAVAGE_WAIT_2D  0x1     /* wait for 2D idle before updating event tag */
 127 #define SAVAGE_WAIT_3D  0x2     /* wait for 3D idle before updating event tag */
 128 #define SAVAGE_WAIT_IRQ 0x4     /* emit or wait for IRQ, not implemented yet */
 129 typedef struct drm_savage_event {
 130         unsigned int count;
 131         unsigned int flags;
 132 } drm_savage_event_emit_t, drm_savage_event_wait_t;
 133
 134 /* Commands for the cmdbuf ioctl
 135  */
 136 #define SAVAGE_CMD_STATE        0       /* a range of state registers */
 137 #define SAVAGE_CMD_DMA_PRIM     1       /* vertices from DMA buffer */
 138 #define SAVAGE_CMD_VB_PRIM      2       /* vertices from client vertex buffer */
 139 #define SAVAGE_CMD_DMA_IDX      3       /* indexed vertices from DMA buffer */
 140 #define SAVAGE_CMD_VB_IDX       4       /* indexed vertices client vertex buffer */
 141 #define SAVAGE_CMD_CLEAR        5       /* clear buffers */
 142 #define SAVAGE_CMD_SWAP         6       /* swap buffers */
 143
 144 /* Primitive types
 145 */
 146 #define SAVAGE_PRIM_TRILIST     0       /* triangle list */
 147 #define SAVAGE_PRIM_TRISTRIP    1       /* triangle strip */
 148 #define SAVAGE_PRIM_TRIFAN      2       /* triangle fan */
 149 #define SAVAGE_PRIM_TRILIST_201 3       /* reorder verts for correct flat
 150                                          * shading on s3d */
 151
 152 /* Skip flags (vertex format)
 153  */
 154 #define SAVAGE_SKIP_Z           0x01
 155 #define SAVAGE_SKIP_W           0x02
 156 #define SAVAGE_SKIP_C0          0x04
 157 #define SAVAGE_SKIP_C1          0x08
 158 #define SAVAGE_SKIP_S0          0x10
 159 #define SAVAGE_SKIP_T0          0x20
 160 #define SAVAGE_SKIP_ST0         0x30
 161 #define SAVAGE_SKIP_S1          0x40
 162 #define SAVAGE_SKIP_T1          0x80
 163 #define SAVAGE_SKIP_ST1         0xc0
 164 #define SAVAGE_SKIP_ALL_S3D     0x3f
 165 #define SAVAGE_SKIP_ALL_S4      0xff
 166
 167 /* Buffer names for clear command
 168  */
 169 #define SAVAGE_FRONT            0x1
 170 #define SAVAGE_BACK             0x2
 171 #define SAVAGE_DEPTH            0x4
 172
 173 /* 64-bit command header
 174  */
 175 union drm_savage_cmd_header {
 176         struct {
 177                 unsigned char cmd;      /* command */
 178                 unsigned char pad0;
 179                 unsigned short pad1;
 180                 unsigned short pad2;
 181                 unsigned short pad3;
 182         } cmd;                  /* generic */
 183         struct {
 184                 unsigned char cmd;
 185                 unsigned char global;   /* need idle engine? */
 186                 unsigned short count;   /* number of consecutive registers */
 187                 unsigned short start;   /* first register */
 188                 unsigned short pad3;
 189         } state;                /* SAVAGE_CMD_STATE */
 190         struct {
 191                 unsigned char cmd;
 192                 unsigned char prim;     /* primitive type */
 193                 unsigned short skip;    /* vertex format (skip flags) */
 194                 unsigned short count;   /* number of vertices */
 195                 unsigned short start;   /* first vertex in DMA/vertex buffer */
 196         } prim;                 /* SAVAGE_CMD_DMA_PRIM, SAVAGE_CMD_VB_PRIM */
 197         struct {
 198                 unsigned char cmd;
 199                 unsigned char prim;
 200                 unsigned short skip;
 201                 unsigned short count;   /* number of indices that follow */
 202                 unsigned short pad3;
 203         } idx;                  /* SAVAGE_CMD_DMA_IDX, SAVAGE_CMD_VB_IDX */
 204         struct {
 205                 unsigned char cmd;
 206                 unsigned char pad0;
 207                 unsigned short pad1;
 208                 unsigned int flags;
 209         } clear0;               /* SAVAGE_CMD_CLEAR */
 210         struct {
 211                 unsigned int mask;
 212                 unsigned int value;
 213         } clear1;               /* SAVAGE_CMD_CLEAR data */
 214 };
 215
 216 #if defined(__cplusplus)
 217 }
 218 #endif
 219
 220 #endif