radeon_drv.h revision 113995
1/* radeon_drv.h -- Private header for radeon driver -*- linux-c -*-
2 *
3 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
4 * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
5 * All rights reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
16 * Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 *
26 * Authors:
27 *    Kevin E. Martin <martin@valinux.com>
28 *    Gareth Hughes <gareth@valinux.com>
29 *
30 * $FreeBSD: head/sys/dev/drm/radeon_drv.h 113995 2003-04-25 01:18:47Z anholt $
31 */
32
33#ifndef __RADEON_DRV_H__
34#define __RADEON_DRV_H__
35
36#define GET_RING_HEAD(dev_priv)		DRM_READ32(  (dev_priv)->ring_rptr, 0 )
37#define SET_RING_HEAD(dev_priv,val)	DRM_WRITE32( (dev_priv)->ring_rptr, 0, (val) )
38
39typedef struct drm_radeon_freelist {
40   	unsigned int age;
41   	drm_buf_t *buf;
42   	struct drm_radeon_freelist *next;
43   	struct drm_radeon_freelist *prev;
44} drm_radeon_freelist_t;
45
46typedef struct drm_radeon_ring_buffer {
47	u32 *start;
48	u32 *end;
49	int size;
50	int size_l2qw;
51
52	u32 tail;
53	u32 tail_mask;
54	int space;
55
56	int high_mark;
57} drm_radeon_ring_buffer_t;
58
59typedef struct drm_radeon_depth_clear_t {
60	u32 rb3d_cntl;
61	u32 rb3d_zstencilcntl;
62	u32 se_cntl;
63} drm_radeon_depth_clear_t;
64
65
66struct mem_block {
67	struct mem_block *next;
68	struct mem_block *prev;
69	int start;
70	int size;
71	DRMFILE filp;		/* 0: free, -1: heap, other: real files */
72};
73
74typedef struct drm_radeon_private {
75	drm_radeon_ring_buffer_t ring;
76	drm_radeon_sarea_t *sarea_priv;
77
78	int agp_size;
79	u32 agp_vm_start;
80	unsigned long agp_buffers_offset;
81
82	int cp_mode;
83	int cp_running;
84
85   	drm_radeon_freelist_t *head;
86   	drm_radeon_freelist_t *tail;
87	int last_buf;
88	volatile u32 *scratch;
89	int writeback_works;
90
91	int usec_timeout;
92
93	int is_r200;
94
95	int is_pci;
96	unsigned long phys_pci_gart;
97	dma_addr_t bus_pci_gart;
98
99	struct {
100		u32 boxes;
101		int freelist_timeouts;
102		int freelist_loops;
103		int requested_bufs;
104		int last_frame_reads;
105		int last_clear_reads;
106		int clears;
107		int texture_uploads;
108	} stats;
109
110	int do_boxes;
111	int page_flipping;
112	int current_page;
113
114	u32 color_fmt;
115	unsigned int front_offset;
116	unsigned int front_pitch;
117	unsigned int back_offset;
118	unsigned int back_pitch;
119
120	u32 depth_fmt;
121	unsigned int depth_offset;
122	unsigned int depth_pitch;
123
124	u32 front_pitch_offset;
125	u32 back_pitch_offset;
126	u32 depth_pitch_offset;
127
128	drm_radeon_depth_clear_t depth_clear;
129
130	unsigned long fb_offset;
131	unsigned long mmio_offset;
132	unsigned long ring_offset;
133	unsigned long ring_rptr_offset;
134	unsigned long buffers_offset;
135	unsigned long agp_textures_offset;
136
137	drm_local_map_t *sarea;
138	drm_local_map_t *fb;
139	drm_local_map_t *mmio;
140	drm_local_map_t *cp_ring;
141	drm_local_map_t *ring_rptr;
142	drm_local_map_t *buffers;
143	drm_local_map_t *agp_textures;
144
145	struct mem_block *agp_heap;
146	struct mem_block *fb_heap;
147
148	/* SW interrupt */
149   	wait_queue_head_t swi_queue;
150   	atomic_t swi_emitted;
151
152} drm_radeon_private_t;
153
154typedef struct drm_radeon_buf_priv {
155	u32 age;
156} drm_radeon_buf_priv_t;
157
158				/* radeon_cp.c */
159extern int radeon_cp_init( DRM_IOCTL_ARGS );
160extern int radeon_cp_start( DRM_IOCTL_ARGS );
161extern int radeon_cp_stop( DRM_IOCTL_ARGS );
162extern int radeon_cp_reset( DRM_IOCTL_ARGS );
163extern int radeon_cp_idle( DRM_IOCTL_ARGS );
164extern int radeon_engine_reset( DRM_IOCTL_ARGS );
165extern int radeon_fullscreen( DRM_IOCTL_ARGS );
166extern int radeon_cp_buffers( DRM_IOCTL_ARGS );
167
168extern void radeon_freelist_reset( drm_device_t *dev );
169extern drm_buf_t *radeon_freelist_get( drm_device_t *dev );
170
171extern int radeon_wait_ring( drm_radeon_private_t *dev_priv, int n );
172
173extern int radeon_do_cp_idle( drm_radeon_private_t *dev_priv );
174extern int radeon_do_cleanup_cp( drm_device_t *dev );
175extern int radeon_do_cleanup_pageflip( drm_device_t *dev );
176
177				/* radeon_state.c */
178extern int radeon_cp_clear( DRM_IOCTL_ARGS );
179extern int radeon_cp_swap( DRM_IOCTL_ARGS );
180extern int radeon_cp_vertex( DRM_IOCTL_ARGS );
181extern int radeon_cp_indices( DRM_IOCTL_ARGS );
182extern int radeon_cp_texture( DRM_IOCTL_ARGS );
183extern int radeon_cp_stipple( DRM_IOCTL_ARGS );
184extern int radeon_cp_indirect( DRM_IOCTL_ARGS );
185extern int radeon_cp_vertex2( DRM_IOCTL_ARGS );
186extern int radeon_cp_cmdbuf( DRM_IOCTL_ARGS );
187extern int radeon_cp_getparam( DRM_IOCTL_ARGS );
188extern int radeon_cp_flip( DRM_IOCTL_ARGS );
189
190extern int radeon_mem_alloc( DRM_IOCTL_ARGS );
191extern int radeon_mem_free( DRM_IOCTL_ARGS );
192extern int radeon_mem_init_heap( DRM_IOCTL_ARGS );
193extern void radeon_mem_takedown( struct mem_block **heap );
194extern void radeon_mem_release( DRMFILE filp, struct mem_block *heap );
195
196				/* radeon_irq.c */
197extern int radeon_irq_emit( DRM_IOCTL_ARGS );
198extern int radeon_irq_wait( DRM_IOCTL_ARGS );
199
200extern int radeon_emit_and_wait_irq(drm_device_t *dev);
201extern int radeon_wait_irq(drm_device_t *dev, int swi_nr);
202extern int radeon_emit_irq(drm_device_t *dev);
203
204extern void radeon_do_release(drm_device_t *dev);
205
206/* Flags for stats.boxes
207 */
208#define RADEON_BOX_DMA_IDLE      0x1
209#define RADEON_BOX_RING_FULL     0x2
210#define RADEON_BOX_FLIP          0x4
211#define RADEON_BOX_WAIT_IDLE     0x8
212#define RADEON_BOX_TEXTURE_LOAD  0x10
213
214
215
216/* Register definitions, register access macros and drmAddMap constants
217 * for Radeon kernel driver.
218 */
219
220#define RADEON_AGP_COMMAND		0x0f60
221#define RADEON_AUX_SCISSOR_CNTL		0x26f0
222#	define RADEON_EXCLUSIVE_SCISSOR_0	(1 << 24)
223#	define RADEON_EXCLUSIVE_SCISSOR_1	(1 << 25)
224#	define RADEON_EXCLUSIVE_SCISSOR_2	(1 << 26)
225#	define RADEON_SCISSOR_0_ENABLE		(1 << 28)
226#	define RADEON_SCISSOR_1_ENABLE		(1 << 29)
227#	define RADEON_SCISSOR_2_ENABLE		(1 << 30)
228
229#define RADEON_BUS_CNTL			0x0030
230#	define RADEON_BUS_MASTER_DIS		(1 << 6)
231
232#define RADEON_CLOCK_CNTL_DATA		0x000c
233#	define RADEON_PLL_WR_EN			(1 << 7)
234#define RADEON_CLOCK_CNTL_INDEX		0x0008
235#define RADEON_CONFIG_APER_SIZE		0x0108
236#define RADEON_CRTC_OFFSET		0x0224
237#define RADEON_CRTC_OFFSET_CNTL		0x0228
238#	define RADEON_CRTC_TILE_EN		(1 << 15)
239#	define RADEON_CRTC_OFFSET_FLIP_CNTL	(1 << 16)
240#define RADEON_CRTC2_OFFSET		0x0324
241#define RADEON_CRTC2_OFFSET_CNTL	0x0328
242
243#define RADEON_RB3D_COLORPITCH		0x1c48
244
245#define RADEON_DP_GUI_MASTER_CNTL	0x146c
246#	define RADEON_GMC_SRC_PITCH_OFFSET_CNTL	(1 << 0)
247#	define RADEON_GMC_DST_PITCH_OFFSET_CNTL	(1 << 1)
248#	define RADEON_GMC_BRUSH_SOLID_COLOR	(13 << 4)
249#	define RADEON_GMC_BRUSH_NONE		(15 << 4)
250#	define RADEON_GMC_DST_16BPP		(4 << 8)
251#	define RADEON_GMC_DST_24BPP		(5 << 8)
252#	define RADEON_GMC_DST_32BPP		(6 << 8)
253#	define RADEON_GMC_DST_DATATYPE_SHIFT	8
254#	define RADEON_GMC_SRC_DATATYPE_COLOR	(3 << 12)
255#	define RADEON_DP_SRC_SOURCE_MEMORY	(2 << 24)
256#	define RADEON_DP_SRC_SOURCE_HOST_DATA	(3 << 24)
257#	define RADEON_GMC_CLR_CMP_CNTL_DIS	(1 << 28)
258#	define RADEON_GMC_WR_MSK_DIS		(1 << 30)
259#	define RADEON_ROP3_S			0x00cc0000
260#	define RADEON_ROP3_P			0x00f00000
261#define RADEON_DP_WRITE_MASK		0x16cc
262#define RADEON_DST_PITCH_OFFSET		0x142c
263#define RADEON_DST_PITCH_OFFSET_C	0x1c80
264#	define RADEON_DST_TILE_LINEAR		(0 << 30)
265#	define RADEON_DST_TILE_MACRO		(1 << 30)
266#	define RADEON_DST_TILE_MICRO		(2 << 30)
267#	define RADEON_DST_TILE_BOTH		(3 << 30)
268
269#define RADEON_SCRATCH_REG0		0x15e0
270#define RADEON_SCRATCH_REG1		0x15e4
271#define RADEON_SCRATCH_REG2		0x15e8
272#define RADEON_SCRATCH_REG3		0x15ec
273#define RADEON_SCRATCH_REG4		0x15f0
274#define RADEON_SCRATCH_REG5		0x15f4
275#define RADEON_SCRATCH_UMSK		0x0770
276#define RADEON_SCRATCH_ADDR		0x0774
277
278#define RADEON_SCRATCHOFF( x )		(RADEON_SCRATCH_REG_OFFSET + 4*(x))
279
280#define GET_SCRATCH( x )	(dev_priv->writeback_works			\
281				? DRM_READ32( dev_priv->ring_rptr, RADEON_SCRATCHOFF(x) ) \
282				: RADEON_READ( RADEON_SCRATCH_REG0 + 4*(x) ) )
283
284
285#define RADEON_GEN_INT_CNTL		0x0040
286#	define RADEON_CRTC_VBLANK_MASK		(1 << 0)
287#	define RADEON_GUI_IDLE_INT_ENABLE	(1 << 19)
288#	define RADEON_SW_INT_ENABLE		(1 << 25)
289
290#define RADEON_GEN_INT_STATUS		0x0044
291#	define RADEON_CRTC_VBLANK_STAT		(1 << 0)
292#	define RADEON_CRTC_VBLANK_STAT_ACK   	(1 << 0)
293#	define RADEON_GUI_IDLE_INT_TEST_ACK     (1 << 19)
294#	define RADEON_SW_INT_TEST		(1 << 25)
295#	define RADEON_SW_INT_TEST_ACK   	(1 << 25)
296#	define RADEON_SW_INT_FIRE		(1 << 26)
297
298#define RADEON_HOST_PATH_CNTL		0x0130
299#	define RADEON_HDP_SOFT_RESET		(1 << 26)
300#	define RADEON_HDP_WC_TIMEOUT_MASK	(7 << 28)
301#	define RADEON_HDP_WC_TIMEOUT_28BCLK	(7 << 28)
302
303#define RADEON_ISYNC_CNTL		0x1724
304#	define RADEON_ISYNC_ANY2D_IDLE3D	(1 << 0)
305#	define RADEON_ISYNC_ANY3D_IDLE2D	(1 << 1)
306#	define RADEON_ISYNC_TRIG2D_IDLE3D	(1 << 2)
307#	define RADEON_ISYNC_TRIG3D_IDLE2D	(1 << 3)
308#	define RADEON_ISYNC_WAIT_IDLEGUI	(1 << 4)
309#	define RADEON_ISYNC_CPSCRATCH_IDLEGUI	(1 << 5)
310
311#define RADEON_RBBM_GUICNTL		0x172c
312#	define RADEON_HOST_DATA_SWAP_NONE	(0 << 0)
313#	define RADEON_HOST_DATA_SWAP_16BIT	(1 << 0)
314#	define RADEON_HOST_DATA_SWAP_32BIT	(2 << 0)
315#	define RADEON_HOST_DATA_SWAP_HDW	(3 << 0)
316
317#define RADEON_MC_AGP_LOCATION		0x014c
318#define RADEON_MC_FB_LOCATION		0x0148
319#define RADEON_MCLK_CNTL		0x0012
320#	define RADEON_FORCEON_MCLKA		(1 << 16)
321#	define RADEON_FORCEON_MCLKB		(1 << 17)
322#	define RADEON_FORCEON_YCLKA		(1 << 18)
323#	define RADEON_FORCEON_YCLKB		(1 << 19)
324#	define RADEON_FORCEON_MC		(1 << 20)
325#	define RADEON_FORCEON_AIC		(1 << 21)
326
327#define RADEON_PP_BORDER_COLOR_0	0x1d40
328#define RADEON_PP_BORDER_COLOR_1	0x1d44
329#define RADEON_PP_BORDER_COLOR_2	0x1d48
330#define RADEON_PP_CNTL			0x1c38
331#	define RADEON_SCISSOR_ENABLE		(1 <<  1)
332#define RADEON_PP_LUM_MATRIX		0x1d00
333#define RADEON_PP_MISC			0x1c14
334#define RADEON_PP_ROT_MATRIX_0		0x1d58
335#define RADEON_PP_TXFILTER_0		0x1c54
336#define RADEON_PP_TXFILTER_1		0x1c6c
337#define RADEON_PP_TXFILTER_2		0x1c84
338
339#define RADEON_RB2D_DSTCACHE_CTLSTAT	0x342c
340#	define RADEON_RB2D_DC_FLUSH		(3 << 0)
341#	define RADEON_RB2D_DC_FREE		(3 << 2)
342#	define RADEON_RB2D_DC_FLUSH_ALL		0xf
343#	define RADEON_RB2D_DC_BUSY		(1 << 31)
344#define RADEON_RB3D_CNTL		0x1c3c
345#	define RADEON_ALPHA_BLEND_ENABLE	(1 << 0)
346#	define RADEON_PLANE_MASK_ENABLE		(1 << 1)
347#	define RADEON_DITHER_ENABLE		(1 << 2)
348#	define RADEON_ROUND_ENABLE		(1 << 3)
349#	define RADEON_SCALE_DITHER_ENABLE	(1 << 4)
350#	define RADEON_DITHER_INIT		(1 << 5)
351#	define RADEON_ROP_ENABLE		(1 << 6)
352#	define RADEON_STENCIL_ENABLE		(1 << 7)
353#	define RADEON_Z_ENABLE			(1 << 8)
354#define RADEON_RB3D_DEPTHOFFSET		0x1c24
355#define RADEON_RB3D_DEPTHPITCH		0x1c28
356#define RADEON_RB3D_PLANEMASK		0x1d84
357#define RADEON_RB3D_STENCILREFMASK	0x1d7c
358#define RADEON_RB3D_ZCACHE_MODE		0x3250
359#define RADEON_RB3D_ZCACHE_CTLSTAT	0x3254
360#	define RADEON_RB3D_ZC_FLUSH		(1 << 0)
361#	define RADEON_RB3D_ZC_FREE		(1 << 2)
362#	define RADEON_RB3D_ZC_FLUSH_ALL		0x5
363#	define RADEON_RB3D_ZC_BUSY		(1 << 31)
364#define RADEON_RB3D_ZSTENCILCNTL	0x1c2c
365#	define RADEON_Z_TEST_MASK		(7 << 4)
366#	define RADEON_Z_TEST_ALWAYS		(7 << 4)
367#	define RADEON_STENCIL_TEST_ALWAYS	(7 << 12)
368#	define RADEON_STENCIL_S_FAIL_REPLACE	(2 << 16)
369#	define RADEON_STENCIL_ZPASS_REPLACE	(2 << 20)
370#	define RADEON_STENCIL_ZFAIL_REPLACE	(2 << 24)
371#	define RADEON_Z_WRITE_ENABLE		(1 << 30)
372#define RADEON_RBBM_SOFT_RESET		0x00f0
373#	define RADEON_SOFT_RESET_CP		(1 <<  0)
374#	define RADEON_SOFT_RESET_HI		(1 <<  1)
375#	define RADEON_SOFT_RESET_SE		(1 <<  2)
376#	define RADEON_SOFT_RESET_RE		(1 <<  3)
377#	define RADEON_SOFT_RESET_PP		(1 <<  4)
378#	define RADEON_SOFT_RESET_E2		(1 <<  5)
379#	define RADEON_SOFT_RESET_RB		(1 <<  6)
380#	define RADEON_SOFT_RESET_HDP		(1 <<  7)
381#define RADEON_RBBM_STATUS		0x0e40
382#	define RADEON_RBBM_FIFOCNT_MASK		0x007f
383#	define RADEON_RBBM_ACTIVE		(1 << 31)
384#define RADEON_RE_LINE_PATTERN		0x1cd0
385#define RADEON_RE_MISC			0x26c4
386#define RADEON_RE_TOP_LEFT		0x26c0
387#define RADEON_RE_WIDTH_HEIGHT		0x1c44
388#define RADEON_RE_STIPPLE_ADDR		0x1cc8
389#define RADEON_RE_STIPPLE_DATA		0x1ccc
390
391#define RADEON_SCISSOR_TL_0		0x1cd8
392#define RADEON_SCISSOR_BR_0		0x1cdc
393#define RADEON_SCISSOR_TL_1		0x1ce0
394#define RADEON_SCISSOR_BR_1		0x1ce4
395#define RADEON_SCISSOR_TL_2		0x1ce8
396#define RADEON_SCISSOR_BR_2		0x1cec
397#define RADEON_SE_COORD_FMT		0x1c50
398#define RADEON_SE_CNTL			0x1c4c
399#	define RADEON_FFACE_CULL_CW		(0 << 0)
400#	define RADEON_BFACE_SOLID		(3 << 1)
401#	define RADEON_FFACE_SOLID		(3 << 3)
402#	define RADEON_FLAT_SHADE_VTX_LAST	(3 << 6)
403#	define RADEON_DIFFUSE_SHADE_FLAT	(1 << 8)
404#	define RADEON_DIFFUSE_SHADE_GOURAUD	(2 << 8)
405#	define RADEON_ALPHA_SHADE_FLAT		(1 << 10)
406#	define RADEON_ALPHA_SHADE_GOURAUD	(2 << 10)
407#	define RADEON_SPECULAR_SHADE_FLAT	(1 << 12)
408#	define RADEON_SPECULAR_SHADE_GOURAUD	(2 << 12)
409#	define RADEON_FOG_SHADE_FLAT		(1 << 14)
410#	define RADEON_FOG_SHADE_GOURAUD		(2 << 14)
411#	define RADEON_VPORT_XY_XFORM_ENABLE	(1 << 24)
412#	define RADEON_VPORT_Z_XFORM_ENABLE	(1 << 25)
413#	define RADEON_VTX_PIX_CENTER_OGL	(1 << 27)
414#	define RADEON_ROUND_MODE_TRUNC		(0 << 28)
415#	define RADEON_ROUND_PREC_8TH_PIX	(1 << 30)
416#define RADEON_SE_CNTL_STATUS		0x2140
417#define RADEON_SE_LINE_WIDTH		0x1db8
418#define RADEON_SE_VPORT_XSCALE		0x1d98
419#define RADEON_SE_ZBIAS_FACTOR		0x1db0
420#define RADEON_SE_TCL_MATERIAL_EMMISSIVE_RED 0x2210
421#define RADEON_SE_TCL_OUTPUT_VTX_FMT         0x2254
422#define RADEON_SE_TCL_VECTOR_INDX_REG        0x2200
423#       define RADEON_VEC_INDX_OCTWORD_STRIDE_SHIFT  16
424#       define RADEON_VEC_INDX_DWORD_COUNT_SHIFT     28
425#define RADEON_SE_TCL_VECTOR_DATA_REG       0x2204
426#define RADEON_SE_TCL_SCALAR_INDX_REG       0x2208
427#       define RADEON_SCAL_INDX_DWORD_STRIDE_SHIFT  16
428#define RADEON_SE_TCL_SCALAR_DATA_REG       0x220C
429#define RADEON_SURFACE_ACCESS_FLAGS	0x0bf8
430#define RADEON_SURFACE_ACCESS_CLR	0x0bfc
431#define RADEON_SURFACE_CNTL		0x0b00
432#	define RADEON_SURF_TRANSLATION_DIS	(1 << 8)
433#	define RADEON_NONSURF_AP0_SWP_MASK	(3 << 20)
434#	define RADEON_NONSURF_AP0_SWP_LITTLE	(0 << 20)
435#	define RADEON_NONSURF_AP0_SWP_BIG16	(1 << 20)
436#	define RADEON_NONSURF_AP0_SWP_BIG32	(2 << 20)
437#	define RADEON_NONSURF_AP1_SWP_MASK	(3 << 22)
438#	define RADEON_NONSURF_AP1_SWP_LITTLE	(0 << 22)
439#	define RADEON_NONSURF_AP1_SWP_BIG16	(1 << 22)
440#	define RADEON_NONSURF_AP1_SWP_BIG32	(2 << 22)
441#define RADEON_SURFACE0_INFO		0x0b0c
442#	define RADEON_SURF_PITCHSEL_MASK	(0x1ff << 0)
443#	define RADEON_SURF_TILE_MODE_MASK	(3 << 16)
444#	define RADEON_SURF_TILE_MODE_MACRO	(0 << 16)
445#	define RADEON_SURF_TILE_MODE_MICRO	(1 << 16)
446#	define RADEON_SURF_TILE_MODE_32BIT_Z	(2 << 16)
447#	define RADEON_SURF_TILE_MODE_16BIT_Z	(3 << 16)
448#define RADEON_SURFACE0_LOWER_BOUND	0x0b04
449#define RADEON_SURFACE0_UPPER_BOUND	0x0b08
450#define RADEON_SURFACE1_INFO		0x0b1c
451#define RADEON_SURFACE1_LOWER_BOUND	0x0b14
452#define RADEON_SURFACE1_UPPER_BOUND	0x0b18
453#define RADEON_SURFACE2_INFO		0x0b2c
454#define RADEON_SURFACE2_LOWER_BOUND	0x0b24
455#define RADEON_SURFACE2_UPPER_BOUND	0x0b28
456#define RADEON_SURFACE3_INFO		0x0b3c
457#define RADEON_SURFACE3_LOWER_BOUND	0x0b34
458#define RADEON_SURFACE3_UPPER_BOUND	0x0b38
459#define RADEON_SURFACE4_INFO		0x0b4c
460#define RADEON_SURFACE4_LOWER_BOUND	0x0b44
461#define RADEON_SURFACE4_UPPER_BOUND	0x0b48
462#define RADEON_SURFACE5_INFO		0x0b5c
463#define RADEON_SURFACE5_LOWER_BOUND	0x0b54
464#define RADEON_SURFACE5_UPPER_BOUND	0x0b58
465#define RADEON_SURFACE6_INFO		0x0b6c
466#define RADEON_SURFACE6_LOWER_BOUND	0x0b64
467#define RADEON_SURFACE6_UPPER_BOUND	0x0b68
468#define RADEON_SURFACE7_INFO		0x0b7c
469#define RADEON_SURFACE7_LOWER_BOUND	0x0b74
470#define RADEON_SURFACE7_UPPER_BOUND	0x0b78
471#define RADEON_SW_SEMAPHORE		0x013c
472
473#define RADEON_WAIT_UNTIL		0x1720
474#	define RADEON_WAIT_CRTC_PFLIP		(1 << 0)
475#	define RADEON_WAIT_2D_IDLECLEAN		(1 << 16)
476#	define RADEON_WAIT_3D_IDLECLEAN		(1 << 17)
477#	define RADEON_WAIT_HOST_IDLECLEAN	(1 << 18)
478
479#define RADEON_RB3D_ZMASKOFFSET		0x1c34
480#define RADEON_RB3D_ZSTENCILCNTL	0x1c2c
481#	define RADEON_DEPTH_FORMAT_16BIT_INT_Z	(0 << 0)
482#	define RADEON_DEPTH_FORMAT_24BIT_INT_Z	(2 << 0)
483
484
485/* CP registers */
486#define RADEON_CP_ME_RAM_ADDR		0x07d4
487#define RADEON_CP_ME_RAM_RADDR		0x07d8
488#define RADEON_CP_ME_RAM_DATAH		0x07dc
489#define RADEON_CP_ME_RAM_DATAL		0x07e0
490
491#define RADEON_CP_RB_BASE		0x0700
492#define RADEON_CP_RB_CNTL		0x0704
493#	define RADEON_BUF_SWAP_32BIT		(2 << 16)
494#define RADEON_CP_RB_RPTR_ADDR		0x070c
495#define RADEON_CP_RB_RPTR		0x0710
496#define RADEON_CP_RB_WPTR		0x0714
497
498#define RADEON_CP_RB_WPTR_DELAY		0x0718
499#	define RADEON_PRE_WRITE_TIMER_SHIFT	0
500#	define RADEON_PRE_WRITE_LIMIT_SHIFT	23
501
502#define RADEON_CP_IB_BASE		0x0738
503
504#define RADEON_CP_CSQ_CNTL		0x0740
505#	define RADEON_CSQ_CNT_PRIMARY_MASK	(0xff << 0)
506#	define RADEON_CSQ_PRIDIS_INDDIS		(0 << 28)
507#	define RADEON_CSQ_PRIPIO_INDDIS		(1 << 28)
508#	define RADEON_CSQ_PRIBM_INDDIS		(2 << 28)
509#	define RADEON_CSQ_PRIPIO_INDBM		(3 << 28)
510#	define RADEON_CSQ_PRIBM_INDBM		(4 << 28)
511#	define RADEON_CSQ_PRIPIO_INDPIO		(15 << 28)
512
513#define RADEON_AIC_CNTL			0x01d0
514#	define RADEON_PCIGART_TRANSLATE_EN	(1 << 0)
515#define RADEON_AIC_STAT			0x01d4
516#define RADEON_AIC_PT_BASE		0x01d8
517#define RADEON_AIC_LO_ADDR		0x01dc
518#define RADEON_AIC_HI_ADDR		0x01e0
519#define RADEON_AIC_TLB_ADDR		0x01e4
520#define RADEON_AIC_TLB_DATA		0x01e8
521
522/* CP command packets */
523#define RADEON_CP_PACKET0		0x00000000
524#	define RADEON_ONE_REG_WR		(1 << 15)
525#define RADEON_CP_PACKET1		0x40000000
526#define RADEON_CP_PACKET2		0x80000000
527#define RADEON_CP_PACKET3		0xC0000000
528#	define RADEON_3D_RNDR_GEN_INDX_PRIM	0x00002300
529#	define RADEON_WAIT_FOR_IDLE		0x00002600
530#	define RADEON_3D_DRAW_VBUF		0x00002800
531#	define RADEON_3D_DRAW_IMMD		0x00002900
532#	define RADEON_3D_DRAW_INDX		0x00002A00
533#	define RADEON_3D_LOAD_VBPNTR		0x00002F00
534#	define RADEON_CNTL_HOSTDATA_BLT		0x00009400
535#	define RADEON_CNTL_PAINT_MULTI		0x00009A00
536#	define RADEON_CNTL_BITBLT_MULTI		0x00009B00
537#	define RADEON_CNTL_SET_SCISSORS		0xC0001E00
538
539#define RADEON_CP_PACKET_MASK		0xC0000000
540#define RADEON_CP_PACKET_COUNT_MASK	0x3fff0000
541#define RADEON_CP_PACKET0_REG_MASK	0x000007ff
542#define RADEON_CP_PACKET1_REG0_MASK	0x000007ff
543#define RADEON_CP_PACKET1_REG1_MASK	0x003ff800
544
545#define RADEON_VTX_Z_PRESENT			(1 << 31)
546#define RADEON_VTX_PKCOLOR_PRESENT		(1 << 3)
547
548#define RADEON_PRIM_TYPE_NONE			(0 << 0)
549#define RADEON_PRIM_TYPE_POINT			(1 << 0)
550#define RADEON_PRIM_TYPE_LINE			(2 << 0)
551#define RADEON_PRIM_TYPE_LINE_STRIP		(3 << 0)
552#define RADEON_PRIM_TYPE_TRI_LIST		(4 << 0)
553#define RADEON_PRIM_TYPE_TRI_FAN		(5 << 0)
554#define RADEON_PRIM_TYPE_TRI_STRIP		(6 << 0)
555#define RADEON_PRIM_TYPE_TRI_TYPE2		(7 << 0)
556#define RADEON_PRIM_TYPE_RECT_LIST		(8 << 0)
557#define RADEON_PRIM_TYPE_3VRT_POINT_LIST	(9 << 0)
558#define RADEON_PRIM_TYPE_3VRT_LINE_LIST		(10 << 0)
559#define RADEON_PRIM_TYPE_MASK                   0xf
560#define RADEON_PRIM_WALK_IND			(1 << 4)
561#define RADEON_PRIM_WALK_LIST			(2 << 4)
562#define RADEON_PRIM_WALK_RING			(3 << 4)
563#define RADEON_COLOR_ORDER_BGRA			(0 << 6)
564#define RADEON_COLOR_ORDER_RGBA			(1 << 6)
565#define RADEON_MAOS_ENABLE			(1 << 7)
566#define RADEON_VTX_FMT_R128_MODE		(0 << 8)
567#define RADEON_VTX_FMT_RADEON_MODE		(1 << 8)
568#define RADEON_NUM_VERTICES_SHIFT		16
569
570#define RADEON_COLOR_FORMAT_CI8		2
571#define RADEON_COLOR_FORMAT_ARGB1555	3
572#define RADEON_COLOR_FORMAT_RGB565	4
573#define RADEON_COLOR_FORMAT_ARGB8888	6
574#define RADEON_COLOR_FORMAT_RGB332	7
575#define RADEON_COLOR_FORMAT_RGB8	9
576#define RADEON_COLOR_FORMAT_ARGB4444	15
577
578#define RADEON_TXFORMAT_I8		0
579#define RADEON_TXFORMAT_AI88		1
580#define RADEON_TXFORMAT_RGB332		2
581#define RADEON_TXFORMAT_ARGB1555	3
582#define RADEON_TXFORMAT_RGB565		4
583#define RADEON_TXFORMAT_ARGB4444	5
584#define RADEON_TXFORMAT_ARGB8888	6
585#define RADEON_TXFORMAT_RGBA8888	7
586#define RADEON_TXFORMAT_VYUY422         10
587#define RADEON_TXFORMAT_YVYU422         11
588#define RADEON_TXFORMAT_DXT1            12
589#define RADEON_TXFORMAT_DXT23           14
590#define RADEON_TXFORMAT_DXT45           15
591
592#define R200_PP_TXCBLEND_0                0x2f00
593#define R200_PP_TXCBLEND_1                0x2f10
594#define R200_PP_TXCBLEND_2                0x2f20
595#define R200_PP_TXCBLEND_3                0x2f30
596#define R200_PP_TXCBLEND_4                0x2f40
597#define R200_PP_TXCBLEND_5                0x2f50
598#define R200_PP_TXCBLEND_6                0x2f60
599#define R200_PP_TXCBLEND_7                0x2f70
600#define R200_SE_TCL_LIGHT_MODEL_CTL_0     0x2268
601#define R200_PP_TFACTOR_0                 0x2ee0
602#define R200_SE_VTX_FMT_0                 0x2088
603#define R200_SE_VAP_CNTL                  0x2080
604#define R200_SE_TCL_MATRIX_SEL_0          0x2230
605#define R200_SE_TCL_TEX_PROC_CTL_2        0x22a8
606#define R200_SE_TCL_UCP_VERT_BLEND_CTL    0x22c0
607#define R200_PP_TXFILTER_5                0x2ca0
608#define R200_PP_TXFILTER_4                0x2c80
609#define R200_PP_TXFILTER_3                0x2c60
610#define R200_PP_TXFILTER_2                0x2c40
611#define R200_PP_TXFILTER_1                0x2c20
612#define R200_PP_TXFILTER_0                0x2c00
613#define R200_PP_TXOFFSET_5                0x2d78
614#define R200_PP_TXOFFSET_4                0x2d60
615#define R200_PP_TXOFFSET_3                0x2d48
616#define R200_PP_TXOFFSET_2                0x2d30
617#define R200_PP_TXOFFSET_1                0x2d18
618#define R200_PP_TXOFFSET_0                0x2d00
619
620#define R200_PP_CUBIC_FACES_0             0x2c18
621#define R200_PP_CUBIC_FACES_1             0x2c38
622#define R200_PP_CUBIC_FACES_2             0x2c58
623#define R200_PP_CUBIC_FACES_3             0x2c78
624#define R200_PP_CUBIC_FACES_4             0x2c98
625#define R200_PP_CUBIC_FACES_5             0x2cb8
626#define R200_PP_CUBIC_OFFSET_F1_0         0x2d04
627#define R200_PP_CUBIC_OFFSET_F2_0         0x2d08
628#define R200_PP_CUBIC_OFFSET_F3_0         0x2d0c
629#define R200_PP_CUBIC_OFFSET_F4_0         0x2d10
630#define R200_PP_CUBIC_OFFSET_F5_0         0x2d14
631#define R200_PP_CUBIC_OFFSET_F1_1         0x2d1c
632#define R200_PP_CUBIC_OFFSET_F2_1         0x2d20
633#define R200_PP_CUBIC_OFFSET_F3_1         0x2d24
634#define R200_PP_CUBIC_OFFSET_F4_1         0x2d28
635#define R200_PP_CUBIC_OFFSET_F5_1         0x2d2c
636#define R200_PP_CUBIC_OFFSET_F1_2         0x2d34
637#define R200_PP_CUBIC_OFFSET_F2_2         0x2d38
638#define R200_PP_CUBIC_OFFSET_F3_2         0x2d3c
639#define R200_PP_CUBIC_OFFSET_F4_2         0x2d40
640#define R200_PP_CUBIC_OFFSET_F5_2         0x2d44
641#define R200_PP_CUBIC_OFFSET_F1_3         0x2d4c
642#define R200_PP_CUBIC_OFFSET_F2_3         0x2d50
643#define R200_PP_CUBIC_OFFSET_F3_3         0x2d54
644#define R200_PP_CUBIC_OFFSET_F4_3         0x2d58
645#define R200_PP_CUBIC_OFFSET_F5_3         0x2d5c
646#define R200_PP_CUBIC_OFFSET_F1_4         0x2d64
647#define R200_PP_CUBIC_OFFSET_F2_4         0x2d68
648#define R200_PP_CUBIC_OFFSET_F3_4         0x2d6c
649#define R200_PP_CUBIC_OFFSET_F4_4         0x2d70
650#define R200_PP_CUBIC_OFFSET_F5_4         0x2d74
651#define R200_PP_CUBIC_OFFSET_F1_5         0x2d7c
652#define R200_PP_CUBIC_OFFSET_F2_5         0x2d80
653#define R200_PP_CUBIC_OFFSET_F3_5         0x2d84
654#define R200_PP_CUBIC_OFFSET_F4_5         0x2d88
655#define R200_PP_CUBIC_OFFSET_F5_5         0x2d8c
656
657#define R200_RE_AUX_SCISSOR_CNTL          0x26f0
658#define R200_SE_VTE_CNTL                  0x20b0
659#define R200_SE_TCL_OUTPUT_VTX_COMP_SEL   0x2250
660#define R200_PP_TAM_DEBUG3                0x2d9c
661#define R200_PP_CNTL_X                    0x2cc4
662#define R200_SE_VAP_CNTL_STATUS           0x2140
663#define R200_RE_SCISSOR_TL_0              0x1cd8
664#define R200_RE_SCISSOR_TL_1              0x1ce0
665#define R200_RE_SCISSOR_TL_2              0x1ce8
666#define R200_RB3D_DEPTHXY_OFFSET          0x1d60
667#define R200_RE_AUX_SCISSOR_CNTL          0x26f0
668#define R200_SE_VTX_STATE_CNTL            0x2180
669#define R200_RE_POINTSIZE                 0x2648
670#define R200_SE_TCL_INPUT_VTX_VECTOR_ADDR_0 0x2254
671
672
673#define SE_VAP_CNTL__TCL_ENA_MASK                          0x00000001
674#define SE_VAP_CNTL__FORCE_W_TO_ONE_MASK                   0x00010000
675#define SE_VAP_CNTL__VF_MAX_VTX_NUM__SHIFT                 0x00000012
676#define SE_VTE_CNTL__VTX_XY_FMT_MASK                       0x00000100
677#define SE_VTE_CNTL__VTX_Z_FMT_MASK                        0x00000200
678#define SE_VTX_FMT_0__VTX_Z0_PRESENT_MASK                  0x00000001
679#define SE_VTX_FMT_0__VTX_W0_PRESENT_MASK                  0x00000002
680#define SE_VTX_FMT_0__VTX_COLOR_0_FMT__SHIFT               0x0000000b
681#define R200_3D_DRAW_IMMD_2      0xC0003500
682#define R200_SE_VTX_FMT_1                 0x208c
683#define R200_RE_CNTL                      0x1c50
684
685
686/* Constants */
687#define RADEON_MAX_USEC_TIMEOUT		100000	/* 100 ms */
688
689#define RADEON_LAST_FRAME_REG		RADEON_SCRATCH_REG0
690#define RADEON_LAST_DISPATCH_REG	RADEON_SCRATCH_REG1
691#define RADEON_LAST_CLEAR_REG		RADEON_SCRATCH_REG2
692#define RADEON_LAST_SWI_REG		RADEON_SCRATCH_REG3
693#define RADEON_LAST_DISPATCH		1
694
695#define RADEON_MAX_VB_AGE		0x7fffffff
696#define RADEON_MAX_VB_VERTS		(0xffff)
697
698#define RADEON_RING_HIGH_MARK		128
699
700#define RADEON_READ(reg)	DRM_READ32(  dev_priv->mmio, (reg) )
701#define RADEON_WRITE(reg,val)	DRM_WRITE32( dev_priv->mmio, (reg), (val) )
702#define RADEON_READ8(reg)	DRM_READ8(  dev_priv->mmio, (reg) )
703#define RADEON_WRITE8(reg,val)	DRM_WRITE8( dev_priv->mmio, (reg), (val) )
704
705#define RADEON_WRITE_PLL( addr, val )					\
706do {									\
707	RADEON_WRITE8( RADEON_CLOCK_CNTL_INDEX,				\
708		       ((addr) & 0x1f) | RADEON_PLL_WR_EN );		\
709	RADEON_WRITE( RADEON_CLOCK_CNTL_DATA, (val) );			\
710} while (0)
711
712extern int RADEON_READ_PLL( drm_device_t *dev, int addr );
713
714
715#define CP_PACKET0( reg, n )						\
716	(RADEON_CP_PACKET0 | ((n) << 16) | ((reg) >> 2))
717#define CP_PACKET0_TABLE( reg, n )					\
718	(RADEON_CP_PACKET0 | RADEON_ONE_REG_WR | ((n) << 16) | ((reg) >> 2))
719#define CP_PACKET1( reg0, reg1 )					\
720	(RADEON_CP_PACKET1 | (((reg1) >> 2) << 15) | ((reg0) >> 2))
721#define CP_PACKET2()							\
722	(RADEON_CP_PACKET2)
723#define CP_PACKET3( pkt, n )						\
724	(RADEON_CP_PACKET3 | (pkt) | ((n) << 16))
725
726
727/* ================================================================
728 * Engine control helper macros
729 */
730
731#define RADEON_WAIT_UNTIL_2D_IDLE() do {				\
732	OUT_RING( CP_PACKET0( RADEON_WAIT_UNTIL, 0 ) );			\
733	OUT_RING( (RADEON_WAIT_2D_IDLECLEAN |				\
734		   RADEON_WAIT_HOST_IDLECLEAN) );			\
735} while (0)
736
737#define RADEON_WAIT_UNTIL_3D_IDLE() do {				\
738	OUT_RING( CP_PACKET0( RADEON_WAIT_UNTIL, 0 ) );			\
739	OUT_RING( (RADEON_WAIT_3D_IDLECLEAN |				\
740		   RADEON_WAIT_HOST_IDLECLEAN) );			\
741} while (0)
742
743#define RADEON_WAIT_UNTIL_IDLE() do {					\
744	OUT_RING( CP_PACKET0( RADEON_WAIT_UNTIL, 0 ) );			\
745	OUT_RING( (RADEON_WAIT_2D_IDLECLEAN |				\
746		   RADEON_WAIT_3D_IDLECLEAN |				\
747		   RADEON_WAIT_HOST_IDLECLEAN) );			\
748} while (0)
749
750#define RADEON_WAIT_UNTIL_PAGE_FLIPPED() do {				\
751	OUT_RING( CP_PACKET0( RADEON_WAIT_UNTIL, 0 ) );			\
752	OUT_RING( RADEON_WAIT_CRTC_PFLIP );				\
753} while (0)
754
755#define RADEON_FLUSH_CACHE() do {					\
756	OUT_RING( CP_PACKET0( RADEON_RB2D_DSTCACHE_CTLSTAT, 0 ) );	\
757	OUT_RING( RADEON_RB2D_DC_FLUSH );				\
758} while (0)
759
760#define RADEON_PURGE_CACHE() do {					\
761	OUT_RING( CP_PACKET0( RADEON_RB2D_DSTCACHE_CTLSTAT, 0 ) );	\
762	OUT_RING( RADEON_RB2D_DC_FLUSH_ALL );				\
763} while (0)
764
765#define RADEON_FLUSH_ZCACHE() do {					\
766	OUT_RING( CP_PACKET0( RADEON_RB3D_ZCACHE_CTLSTAT, 0 ) );	\
767	OUT_RING( RADEON_RB3D_ZC_FLUSH );				\
768} while (0)
769
770#define RADEON_PURGE_ZCACHE() do {					\
771	OUT_RING( CP_PACKET0( RADEON_RB3D_ZCACHE_CTLSTAT, 0 ) );	\
772	OUT_RING( RADEON_RB3D_ZC_FLUSH_ALL );				\
773} while (0)
774
775
776/* ================================================================
777 * Misc helper macros
778 */
779
780/* Perfbox functionality only.
781 */
782#define RING_SPACE_TEST_WITH_RETURN( dev_priv )				\
783do {									\
784	if (!(dev_priv->stats.boxes & RADEON_BOX_DMA_IDLE)) {		\
785		u32 head = GET_RING_HEAD( dev_priv );			\
786		if (head == dev_priv->ring.tail)			\
787			dev_priv->stats.boxes |= RADEON_BOX_DMA_IDLE;	\
788	}								\
789} while (0)
790
791#define VB_AGE_TEST_WITH_RETURN( dev_priv )				\
792do {									\
793	drm_radeon_sarea_t *sarea_priv = dev_priv->sarea_priv;		\
794	if ( sarea_priv->last_dispatch >= RADEON_MAX_VB_AGE ) {		\
795		int __ret = radeon_do_cp_idle( dev_priv );		\
796		if ( __ret ) return __ret;				\
797		sarea_priv->last_dispatch = 0;				\
798		radeon_freelist_reset( dev );				\
799	}								\
800} while (0)
801
802#define RADEON_DISPATCH_AGE( age ) do {					\
803	OUT_RING( CP_PACKET0( RADEON_LAST_DISPATCH_REG, 0 ) );		\
804	OUT_RING( age );						\
805} while (0)
806
807#define RADEON_FRAME_AGE( age ) do {					\
808	OUT_RING( CP_PACKET0( RADEON_LAST_FRAME_REG, 0 ) );		\
809	OUT_RING( age );						\
810} while (0)
811
812#define RADEON_CLEAR_AGE( age ) do {					\
813	OUT_RING( CP_PACKET0( RADEON_LAST_CLEAR_REG, 0 ) );		\
814	OUT_RING( age );						\
815} while (0)
816
817
818/* ================================================================
819 * Ring control
820 */
821
822#define RADEON_VERBOSE	0
823
824#define RING_LOCALS	int write, _nr; unsigned int mask; u32 *ring;
825
826#define BEGIN_RING( n ) do {						\
827	if ( RADEON_VERBOSE ) {						\
828		DRM_INFO( "BEGIN_RING( %d ) in %s\n",			\
829			   n, __FUNCTION__ );				\
830	}								\
831	if ( dev_priv->ring.space <= (n) * sizeof(u32) ) {		\
832                COMMIT_RING();						\
833		radeon_wait_ring( dev_priv, (n) * sizeof(u32) );	\
834	}								\
835	_nr = n; dev_priv->ring.space -= (n) * sizeof(u32);		\
836	ring = dev_priv->ring.start;					\
837	write = dev_priv->ring.tail;					\
838	mask = dev_priv->ring.tail_mask;				\
839} while (0)
840
841#define ADVANCE_RING() do {						\
842	if ( RADEON_VERBOSE ) {						\
843		DRM_INFO( "ADVANCE_RING() wr=0x%06x tail=0x%06x\n",	\
844			  write, dev_priv->ring.tail );			\
845	}								\
846	if (((dev_priv->ring.tail + _nr) & mask) != write) {		\
847		DRM_ERROR( 						\
848			"ADVANCE_RING(): mismatch: nr: %x write: %x line: %d\n",	\
849			((dev_priv->ring.tail + _nr) & mask),		\
850			write, __LINE__);						\
851	} else								\
852		dev_priv->ring.tail = write;				\
853} while (0)
854
855#define COMMIT_RING() do {						\
856	/* Flush writes to ring */					\
857	DRM_READMEMORYBARRIER( dev_priv->mmio );			\
858	GET_RING_HEAD( dev_priv );					\
859	RADEON_WRITE( RADEON_CP_RB_WPTR, dev_priv->ring.tail );		\
860	/* read from PCI bus to ensure correct posting */		\
861	RADEON_READ( RADEON_CP_RB_RPTR );				\
862} while (0)
863
864#define OUT_RING( x ) do {						\
865	if ( RADEON_VERBOSE ) {						\
866		DRM_INFO( "   OUT_RING( 0x%08x ) at 0x%x\n",		\
867			   (unsigned int)(x), write );			\
868	}								\
869	ring[write++] = (x);						\
870	write &= mask;							\
871} while (0)
872
873#define OUT_RING_REG( reg, val ) do {					\
874	OUT_RING( CP_PACKET0( reg, 0 ) );				\
875	OUT_RING( val );						\
876} while (0)
877
878
879#define OUT_RING_USER_TABLE( tab, sz ) do {			\
880	int _size = (sz);					\
881	int *_tab = (tab);					\
882								\
883	if (write + _size > mask) {				\
884		int i = (mask+1) - write;			\
885		if (DRM_COPY_FROM_USER_UNCHECKED( (int *)(ring+write),	\
886				      _tab, i*4 ))		\
887			return DRM_ERR(EFAULT);		\
888		write = 0;					\
889		_size -= i;					\
890		_tab += i;					\
891	}							\
892								\
893	if (_size && DRM_COPY_FROM_USER_UNCHECKED( (int *)(ring+write),	\
894			               _tab, _size*4 ))		\
895		return DRM_ERR(EFAULT);			\
896								\
897	write += _size;						\
898	write &= mask;						\
899} while (0)
900
901
902#endif /* __RADEON_DRV_H__ */
903