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      1 /* r128_drm.h -- Public header for the r128 driver -*- linux-c -*-
      2  * Created: Wed Apr  5 19:24:19 2000 by kevin (at) precisioninsight.com
      3  */
      4 /*
      5  * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
      6  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
      7  * All rights reserved.
      8  *
      9  * Permission is hereby granted, free of charge, to any person obtaining a
     10  * copy of this software and associated documentation files (the "Software"),
     11  * to deal in the Software without restriction, including without limitation
     12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     13  * and/or sell copies of the Software, and to permit persons to whom the
     14  * Software is furnished to do so, subject to the following conditions:
     15  *
     16  * The above copyright notice and this permission notice (including the next
     17  * paragraph) shall be included in all copies or substantial portions of the
     18  * Software.
     19  *
     20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     23  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     24  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     25  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     26  * DEALINGS IN THE SOFTWARE.
     27  *
     28  * Authors:
     29  *    Gareth Hughes <gareth (at) valinux.com>
     30  *    Kevin E. Martin <martin (at) valinux.com>
     31  */
     32 
     33 #ifndef __R128_DRM_H__
     34 #define __R128_DRM_H__
     35 
     36 /* WARNING: If you change any of these defines, make sure to change the
     37  * defines in the X server file (r128_sarea.h)
     38  */
     39 #ifndef __R128_SAREA_DEFINES__
     40 #define __R128_SAREA_DEFINES__
     41 
     42 /* What needs to be changed for the current vertex buffer?
     43  */
     44 #define R128_UPLOAD_CONTEXT		0x001
     45 #define R128_UPLOAD_SETUP		0x002
     46 #define R128_UPLOAD_TEX0		0x004
     47 #define R128_UPLOAD_TEX1		0x008
     48 #define R128_UPLOAD_TEX0IMAGES		0x010
     49 #define R128_UPLOAD_TEX1IMAGES		0x020
     50 #define R128_UPLOAD_CORE		0x040
     51 #define R128_UPLOAD_MASKS		0x080
     52 #define R128_UPLOAD_WINDOW		0x100
     53 #define R128_UPLOAD_CLIPRECTS		0x200	/* handled client-side */
     54 #define R128_REQUIRE_QUIESCENCE		0x400
     55 #define R128_UPLOAD_ALL			0x7ff
     56 
     57 #define R128_FRONT			0x1
     58 #define R128_BACK			0x2
     59 #define R128_DEPTH			0x4
     60 
     61 /* Primitive types
     62  */
     63 #define R128_POINTS			0x1
     64 #define R128_LINES			0x2
     65 #define R128_LINE_STRIP			0x3
     66 #define R128_TRIANGLES			0x4
     67 #define R128_TRIANGLE_FAN		0x5
     68 #define R128_TRIANGLE_STRIP		0x6
     69 
     70 /* Vertex/indirect buffer size
     71  */
     72 #define R128_BUFFER_SIZE		16384
     73 
     74 /* Byte offsets for indirect buffer data
     75  */
     76 #define R128_INDEX_PRIM_OFFSET		20
     77 #define R128_HOSTDATA_BLIT_OFFSET	32
     78 
     79 /* Keep these small for testing.
     80  */
     81 #define R128_NR_SAREA_CLIPRECTS		12
     82 
     83 /* There are 2 heaps (local/AGP).  Each region within a heap is a
     84  *  minimum of 64k, and there are at most 64 of them per heap.
     85  */
     86 #define R128_LOCAL_TEX_HEAP		0
     87 #define R128_AGP_TEX_HEAP		1
     88 #define R128_NR_TEX_HEAPS		2
     89 #define R128_NR_TEX_REGIONS		64
     90 #define R128_LOG_TEX_GRANULARITY	16
     91 
     92 #define R128_NR_CONTEXT_REGS		12
     93 
     94 #define R128_MAX_TEXTURE_LEVELS		11
     95 #define R128_MAX_TEXTURE_UNITS		2
     96 
     97 #endif				/* __R128_SAREA_DEFINES__ */
     98 
     99 typedef struct {
    100 	/* Context state - can be written in one large chunk */
    101 	unsigned int dst_pitch_offset_c;
    102 	unsigned int dp_gui_master_cntl_c;
    103 	unsigned int sc_top_left_c;
    104 	unsigned int sc_bottom_right_c;
    105 	unsigned int z_offset_c;
    106 	unsigned int z_pitch_c;
    107 	unsigned int z_sten_cntl_c;
    108 	unsigned int tex_cntl_c;
    109 	unsigned int misc_3d_state_cntl_reg;
    110 	unsigned int texture_clr_cmp_clr_c;
    111 	unsigned int texture_clr_cmp_msk_c;
    112 	unsigned int fog_color_c;
    113 
    114 	/* Texture state */
    115 	unsigned int tex_size_pitch_c;
    116 	unsigned int constant_color_c;
    117 
    118 	/* Setup state */
    119 	unsigned int pm4_vc_fpu_setup;
    120 	unsigned int setup_cntl;
    121 
    122 	/* Mask state */
    123 	unsigned int dp_write_mask;
    124 	unsigned int sten_ref_mask_c;
    125 	unsigned int plane_3d_mask_c;
    126 
    127 	/* Window state */
    128 	unsigned int window_xy_offset;
    129 
    130 	/* Core state */
    131 	unsigned int scale_3d_cntl;
    132 } drm_r128_context_regs_t;
    133 
    134 /* Setup registers for each texture unit
    135  */
    136 typedef struct {
    137 	unsigned int tex_cntl;
    138 	unsigned int tex_combine_cntl;
    139 	unsigned int tex_size_pitch;
    140 	unsigned int tex_offset[R128_MAX_TEXTURE_LEVELS];
    141 	unsigned int tex_border_color;
    142 } drm_r128_texture_regs_t;
    143 
    144 typedef struct drm_r128_sarea {
    145 	/* The channel for communication of state information to the kernel
    146 	 * on firing a vertex buffer.
    147 	 */
    148 	drm_r128_context_regs_t context_state;
    149 	drm_r128_texture_regs_t tex_state[R128_MAX_TEXTURE_UNITS];
    150 	unsigned int dirty;
    151 	unsigned int vertsize;
    152 	unsigned int vc_format;
    153 
    154 	/* The current cliprects, or a subset thereof.
    155 	 */
    156 	struct drm_clip_rect boxes[R128_NR_SAREA_CLIPRECTS];
    157 	unsigned int nbox;
    158 
    159 	/* Counters for client-side throttling of rendering clients.
    160 	 */
    161 	unsigned int last_frame;
    162 	unsigned int last_dispatch;
    163 
    164 	struct drm_tex_region tex_list[R128_NR_TEX_HEAPS][R128_NR_TEX_REGIONS + 1];
    165 	unsigned int tex_age[R128_NR_TEX_HEAPS];
    166 	int ctx_owner;
    167 	int pfAllowPageFlip;	/* number of 3d windows (0,1,2 or more) */
    168 	int pfCurrentPage;	/* which buffer is being displayed? */
    169 } drm_r128_sarea_t;
    170 
    171 /* WARNING: If you change any of these defines, make sure to change the
    172  * defines in the Xserver file (xf86drmR128.h)
    173  */
    174 
    175 /* Rage 128 specific ioctls
    176  * The device specific ioctl range is 0x40 to 0x79.
    177  */
    178 #define DRM_R128_INIT       0x00
    179 #define DRM_R128_CCE_START  0x01
    180 #define DRM_R128_CCE_STOP   0x02
    181 #define DRM_R128_CCE_RESET  0x03
    182 #define DRM_R128_CCE_IDLE   0x04
    183 /* 0x05 not used */
    184 #define DRM_R128_RESET      0x06
    185 #define DRM_R128_SWAP       0x07
    186 #define DRM_R128_CLEAR      0x08
    187 #define DRM_R128_VERTEX     0x09
    188 #define DRM_R128_INDICES    0x0a
    189 #define DRM_R128_BLIT       0x0b
    190 #define DRM_R128_DEPTH      0x0c
    191 #define DRM_R128_STIPPLE    0x0d
    192 /* 0x0e not used */
    193 #define DRM_R128_INDIRECT   0x0f
    194 #define DRM_R128_FULLSCREEN 0x10
    195 #define DRM_R128_CLEAR2     0x11
    196 #define DRM_R128_GETPARAM   0x12
    197 #define DRM_R128_FLIP       0x13
    198 
    199 #define DRM_IOCTL_R128_INIT       DRM_IOW( DRM_COMMAND_BASE + DRM_R128_INIT, drm_r128_init_t)
    200 #define DRM_IOCTL_R128_CCE_START  DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_START)
    201 #define DRM_IOCTL_R128_CCE_STOP   DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CCE_STOP, drm_r128_cce_stop_t)
    202 #define DRM_IOCTL_R128_CCE_RESET  DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_RESET)
    203 #define DRM_IOCTL_R128_CCE_IDLE   DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_IDLE)
    204 /* 0x05 not used */
    205 #define DRM_IOCTL_R128_RESET      DRM_IO(  DRM_COMMAND_BASE + DRM_R128_RESET)
    206 #define DRM_IOCTL_R128_SWAP       DRM_IO(  DRM_COMMAND_BASE + DRM_R128_SWAP)
    207 #define DRM_IOCTL_R128_CLEAR      DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CLEAR, drm_r128_clear_t)
    208 #define DRM_IOCTL_R128_VERTEX     DRM_IOW( DRM_COMMAND_BASE + DRM_R128_VERTEX, drm_r128_vertex_t)
    209 #define DRM_IOCTL_R128_INDICES    DRM_IOW( DRM_COMMAND_BASE + DRM_R128_INDICES, drm_r128_indices_t)
    210 #define DRM_IOCTL_R128_BLIT       DRM_IOW( DRM_COMMAND_BASE + DRM_R128_BLIT, drm_r128_blit_t)
    211 #define DRM_IOCTL_R128_DEPTH      DRM_IOW( DRM_COMMAND_BASE + DRM_R128_DEPTH, drm_r128_depth_t)
    212 #define DRM_IOCTL_R128_STIPPLE    DRM_IOW( DRM_COMMAND_BASE + DRM_R128_STIPPLE, drm_r128_stipple_t)
    213 /* 0x0e not used */
    214 #define DRM_IOCTL_R128_INDIRECT   DRM_IOWR(DRM_COMMAND_BASE + DRM_R128_INDIRECT, drm_r128_indirect_t)
    215 #define DRM_IOCTL_R128_FULLSCREEN DRM_IOW( DRM_COMMAND_BASE + DRM_R128_FULLSCREEN, drm_r128_fullscreen_t)
    216 #define DRM_IOCTL_R128_CLEAR2     DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CLEAR2, drm_r128_clear2_t)
    217 #define DRM_IOCTL_R128_GETPARAM   DRM_IOWR( DRM_COMMAND_BASE + DRM_R128_GETPARAM, drm_r128_getparam_t)
    218 #define DRM_IOCTL_R128_FLIP       DRM_IO(  DRM_COMMAND_BASE + DRM_R128_FLIP)
    219 
    220 typedef struct drm_r128_init {
    221 	enum {
    222 		R128_INIT_CCE = 0x01,
    223 		R128_CLEANUP_CCE = 0x02
    224 	} func;
    225 	unsigned long sarea_priv_offset;
    226 	int is_pci;
    227 	int cce_mode;
    228 	int cce_secure;
    229 	int ring_size;
    230 	int usec_timeout;
    231 
    232 	unsigned int fb_bpp;
    233 	unsigned int front_offset, front_pitch;
    234 	unsigned int back_offset, back_pitch;
    235 	unsigned int depth_bpp;
    236 	unsigned int depth_offset, depth_pitch;
    237 	unsigned int span_offset;
    238 
    239 	unsigned long fb_offset;
    240 	unsigned long mmio_offset;
    241 	unsigned long ring_offset;
    242 	unsigned long ring_rptr_offset;
    243 	unsigned long buffers_offset;
    244 	unsigned long agp_textures_offset;
    245 } drm_r128_init_t;
    246 
    247 typedef struct drm_r128_cce_stop {
    248 	int flush;
    249 	int idle;
    250 } drm_r128_cce_stop_t;
    251 
    252 typedef struct drm_r128_clear {
    253 	unsigned int flags;
    254 	unsigned int clear_color;
    255 	unsigned int clear_depth;
    256 	unsigned int color_mask;
    257 	unsigned int depth_mask;
    258 } drm_r128_clear_t;
    259 
    260 typedef struct drm_r128_vertex {
    261 	int prim;
    262 	int idx;		/* Index of vertex buffer */
    263 	int count;		/* Number of vertices in buffer */
    264 	int discard;		/* Client finished with buffer? */
    265 } drm_r128_vertex_t;
    266 
    267 typedef struct drm_r128_indices {
    268 	int prim;
    269 	int idx;
    270 	int start;
    271 	int end;
    272 	int discard;		/* Client finished with buffer? */
    273 } drm_r128_indices_t;
    274 
    275 typedef struct drm_r128_blit {
    276 	int idx;
    277 	int pitch;
    278 	int offset;
    279 	int format;
    280 	unsigned short x, y;
    281 	unsigned short width, height;
    282 } drm_r128_blit_t;
    283 
    284 typedef struct drm_r128_depth {
    285 	enum {
    286 		R128_WRITE_SPAN = 0x01,
    287 		R128_WRITE_PIXELS = 0x02,
    288 		R128_READ_SPAN = 0x03,
    289 		R128_READ_PIXELS = 0x04
    290 	} func;
    291 	int n;
    292 	int __user *x;
    293 	int __user *y;
    294 	unsigned int __user *buffer;
    295 	unsigned char __user *mask;
    296 } drm_r128_depth_t;
    297 
    298 typedef struct drm_r128_stipple {
    299 	unsigned int __user *mask;
    300 } drm_r128_stipple_t;
    301 
    302 typedef struct drm_r128_indirect {
    303 	int idx;
    304 	int start;
    305 	int end;
    306 	int discard;
    307 } drm_r128_indirect_t;
    308 
    309 typedef struct drm_r128_fullscreen {
    310 	enum {
    311 		R128_INIT_FULLSCREEN = 0x01,
    312 		R128_CLEANUP_FULLSCREEN = 0x02
    313 	} func;
    314 } drm_r128_fullscreen_t;
    315 
    316 /* 2.3: An ioctl to get parameters that aren't available to the 3d
    317  * client any other way.
    318  */
    319 #define R128_PARAM_IRQ_NR            1
    320 
    321 typedef struct drm_r128_getparam {
    322 	int param;
    323 	void __user *value;
    324 } drm_r128_getparam_t;
    325 
    326 #endif
    327