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 #ifndef __SAVAGE_SAREA_DEFINES__ 30 #define __SAVAGE_SAREA_DEFINES__ 31 32 /* 2 heaps (1 for card, 1 for agp), each divided into upto 128 33 * regions, subject to a minimum region size of (1<<16) == 64k. 34 * 35 * Clients may subdivide regions internally, but when sharing between 36 * clients, the region size is the minimum granularity. 37 */ 38 39 #define SAVAGE_CARD_HEAP 0 40 #define SAVAGE_AGP_HEAP 1 41 #define SAVAGE_NR_TEX_HEAPS 2 42 #define SAVAGE_NR_TEX_REGIONS 16 43 #define SAVAGE_LOG_MIN_TEX_REGION_SIZE 16 44 45 #endif /* __SAVAGE_SAREA_DEFINES__ */ 46 47 typedef struct _drm_savage_sarea { 48 /* LRU lists for texture memory in agp space and on the card. 49 */ 50 struct drm_tex_region texList[SAVAGE_NR_TEX_HEAPS][SAVAGE_NR_TEX_REGIONS+1]; 51 unsigned int texAge[SAVAGE_NR_TEX_HEAPS]; 52 53 /* Mechanism to validate card state. 54 */ 55 int ctxOwner; 56 } drm_savage_sarea_t, *drm_savage_sarea_ptr; 57 58 /* Savage-specific ioctls 59 */ 60 #define DRM_SAVAGE_BCI_INIT 0x00 61 #define DRM_SAVAGE_BCI_CMDBUF 0x01 62 #define DRM_SAVAGE_BCI_EVENT_EMIT 0x02 63 #define DRM_SAVAGE_BCI_EVENT_WAIT 0x03 64 65 #define DRM_IOCTL_SAVAGE_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_INIT, drm_savage_init_t) 66 #define DRM_IOCTL_SAVAGE_CMDBUF DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_CMDBUF, drm_savage_cmdbuf_t) 67 #define DRM_IOCTL_SAVAGE_EVENT_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_EMIT, drm_savage_event_emit_t) 68 #define DRM_IOCTL_SAVAGE_EVENT_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_WAIT, drm_savage_event_wait_t) 69 70 #define SAVAGE_DMA_PCI 1 71 #define SAVAGE_DMA_AGP 3 72 typedef struct drm_savage_init { 73 enum { 74 SAVAGE_INIT_BCI = 1, 75 SAVAGE_CLEANUP_BCI = 2 76 } func; 77 unsigned int sarea_priv_offset; 78 79 /* some parameters */ 80 unsigned int cob_size; 81 unsigned int bci_threshold_lo, bci_threshold_hi; 82 unsigned int dma_type; 83 84 /* frame buffer layout */ 85 unsigned int fb_bpp; 86 unsigned int front_offset, front_pitch; 87 unsigned int back_offset, back_pitch; 88 unsigned int depth_bpp; 89 unsigned int depth_offset, depth_pitch; 90 91 /* local textures */ 92 unsigned int texture_offset; 93 unsigned int texture_size; 94 95 /* physical locations of non-permanent maps */ 96 unsigned long status_offset; 97 unsigned long buffers_offset; 98 unsigned long agp_textures_offset; 99 unsigned long cmd_dma_offset; 100 } drm_savage_init_t; 101 102 typedef union drm_savage_cmd_header drm_savage_cmd_header_t; 103 typedef struct drm_savage_cmdbuf { 104 /* command buffer in client's address space */ 105 drm_savage_cmd_header_t __user *cmd_addr; 106 unsigned int size; /* size of the command buffer in 64bit units */ 107 108 unsigned int dma_idx; /* DMA buffer index to use */ 109 int discard; /* discard DMA buffer when done */ 110 /* vertex buffer in client's address space */ 111 unsigned int __user *vb_addr; 112 unsigned int vb_size; /* size of client vertex buffer in bytes */ 113 unsigned int vb_stride; /* stride of vertices in 32bit words */ 114 /* boxes in client's address space */ 115 struct drm_clip_rect __user *box_addr; 116 unsigned int nbox; /* number of clipping boxes */ 117 } drm_savage_cmdbuf_t; 118 119 #define SAVAGE_WAIT_2D 0x1 /* wait for 2D idle before updating event tag */ 120 #define SAVAGE_WAIT_3D 0x2 /* wait for 3D idle before updating event tag */ 121 #define SAVAGE_WAIT_IRQ 0x4 /* emit or wait for IRQ, not implemented yet */ 122 typedef struct drm_savage_event { 123 unsigned int count; 124 unsigned int flags; 125 } drm_savage_event_emit_t, drm_savage_event_wait_t; 126 127 /* Commands for the cmdbuf ioctl 128 */ 129 #define SAVAGE_CMD_STATE 0 /* a range of state registers */ 130 #define SAVAGE_CMD_DMA_PRIM 1 /* vertices from DMA buffer */ 131 #define SAVAGE_CMD_VB_PRIM 2 /* vertices from client vertex buffer */ 132 #define SAVAGE_CMD_DMA_IDX 3 /* indexed vertices from DMA buffer */ 133 #define SAVAGE_CMD_VB_IDX 4 /* indexed vertices client vertex buffer */ 134 #define SAVAGE_CMD_CLEAR 5 /* clear buffers */ 135 #define SAVAGE_CMD_SWAP 6 /* swap buffers */ 136 137 /* Primitive types 138 */ 139 #define SAVAGE_PRIM_TRILIST 0 /* triangle list */ 140 #define SAVAGE_PRIM_TRISTRIP 1 /* triangle strip */ 141 #define SAVAGE_PRIM_TRIFAN 2 /* triangle fan */ 142 #define SAVAGE_PRIM_TRILIST_201 3 /* reorder verts for correct flat 143 * shading on s3d */ 144 145 /* Skip flags (vertex format) 146 */ 147 #define SAVAGE_SKIP_Z 0x01 148 #define SAVAGE_SKIP_W 0x02 149 #define SAVAGE_SKIP_C0 0x04 150 #define SAVAGE_SKIP_C1 0x08 151 #define SAVAGE_SKIP_S0 0x10 152 #define SAVAGE_SKIP_T0 0x20 153 #define SAVAGE_SKIP_ST0 0x30 154 #define SAVAGE_SKIP_S1 0x40 155 #define SAVAGE_SKIP_T1 0x80 156 #define SAVAGE_SKIP_ST1 0xc0 157 #define SAVAGE_SKIP_ALL_S3D 0x3f 158 #define SAVAGE_SKIP_ALL_S4 0xff 159 160 /* Buffer names for clear command 161 */ 162 #define SAVAGE_FRONT 0x1 163 #define SAVAGE_BACK 0x2 164 #define SAVAGE_DEPTH 0x4 165 166 /* 64-bit command header 167 */ 168 union drm_savage_cmd_header { 169 struct { 170 unsigned char cmd; /* command */ 171 unsigned char pad0; 172 unsigned short pad1; 173 unsigned short pad2; 174 unsigned short pad3; 175 } cmd; /* generic */ 176 struct { 177 unsigned char cmd; 178 unsigned char global; /* need idle engine? */ 179 unsigned short count; /* number of consecutive registers */ 180 unsigned short start; /* first register */ 181 unsigned short pad3; 182 } state; /* SAVAGE_CMD_STATE */ 183 struct { 184 unsigned char cmd; 185 unsigned char prim; /* primitive type */ 186 unsigned short skip; /* vertex format (skip flags) */ 187 unsigned short count; /* number of vertices */ 188 unsigned short start; /* first vertex in DMA/vertex buffer */ 189 } prim; /* SAVAGE_CMD_DMA_PRIM, SAVAGE_CMD_VB_PRIM */ 190 struct { 191 unsigned char cmd; 192 unsigned char prim; 193 unsigned short skip; 194 unsigned short count; /* number of indices that follow */ 195 unsigned short pad3; 196 } idx; /* SAVAGE_CMD_DMA_IDX, SAVAGE_CMD_VB_IDX */ 197 struct { 198 unsigned char cmd; 199 unsigned char pad0; 200 unsigned short pad1; 201 unsigned int flags; 202 } clear0; /* SAVAGE_CMD_CLEAR */ 203 struct { 204 unsigned int mask; 205 unsigned int value; 206 } clear1; /* SAVAGE_CMD_CLEAR data */ 207 }; 208 209 #endif 210
