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1/* r128_drv.h -- Private header for r128 driver -*- linux-c -*-
2 * Created: Mon Dec 13 09:51:11 1999 by faith@precisioninsight.com
3 */
4/*
5 * Copyright 1999 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 * Rickard E. (Rik) Faith <faith@valinux.com>
30 * Kevin E. Martin <martin@valinux.com>
31 * Gareth Hughes <gareth@valinux.com>
32 * Michel D�zer <daenzerm@student.ethz.ch>
33 */
34
35#ifndef __R128_DRV_H__
36#define __R128_DRV_H__
37
38#include <drm/ati_pcigart.h>
39#include <drm/drm_legacy.h>
40
41/* General customization:
42 */
43#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc."
44
45#define DRIVER_NAME "r128"
46#define DRIVER_DESC "ATI Rage 128"
47#define DRIVER_DATE "20030725"
48
49/* Interface history:
50 *
51 * ?? - ??
52 * 2.4 - Add support for ycbcr textures (no new ioctls)
53 * 2.5 - Add FLIP ioctl, disable FULLSCREEN.
54 */
55#define DRIVER_MAJOR 2
56#define DRIVER_MINOR 5
57#define DRIVER_PATCHLEVEL 0
58
59#define GET_RING_HEAD(dev_priv) R128_READ(R128_PM4_BUFFER_DL_RPTR)
60
61typedef struct drm_r128_freelist {
62 unsigned int age;
63 struct drm_buf *buf;
64 struct drm_r128_freelist *next;
65 struct drm_r128_freelist *prev;
66} drm_r128_freelist_t;
67
68typedef struct drm_r128_ring_buffer {
69 u32 *start;
70 u32 *end;
71 int size;
72 int size_l2qw;
73
74 u32 tail;
75 u32 tail_mask;
76 int space;
77
78 int high_mark;
79} drm_r128_ring_buffer_t;
80
81typedef struct drm_r128_private {
82 drm_r128_ring_buffer_t ring;
83 drm_r128_sarea_t *sarea_priv;
84
85 int cce_mode;
86 int cce_fifo_size;
87 int cce_running;
88
89 drm_r128_freelist_t *head;
90 drm_r128_freelist_t *tail;
91
92 int usec_timeout;
93 int is_pci;
94 unsigned long cce_buffers_offset;
95
96 atomic_t idle_count;
97
98 int page_flipping;
99 int current_page;
100 u32 crtc_offset;
101 u32 crtc_offset_cntl;
102
103 atomic_t vbl_received;
104
105 u32 color_fmt;
106 unsigned int front_offset;
107 unsigned int front_pitch;
108 unsigned int back_offset;
109 unsigned int back_pitch;
110
111 u32 depth_fmt;
112 unsigned int depth_offset;
113 unsigned int depth_pitch;
114 unsigned int span_offset;
115
116 u32 front_pitch_offset_c;
117 u32 back_pitch_offset_c;
118 u32 depth_pitch_offset_c;
119 u32 span_pitch_offset_c;
120
121 drm_local_map_t *sarea;
122 drm_local_map_t *mmio;
123 drm_local_map_t *cce_ring;
124 drm_local_map_t *ring_rptr;
125 drm_local_map_t *agp_textures;
126 struct drm_ati_pcigart_info gart_info;
127} drm_r128_private_t;
128
129typedef struct drm_r128_buf_priv {
130 u32 age;
131 int prim;
132 int discard;
133 int dispatched;
134 drm_r128_freelist_t *list_entry;
135} drm_r128_buf_priv_t;
136
137extern const struct drm_ioctl_desc r128_ioctls[];
138extern int r128_max_ioctl;
139
140 /* r128_cce.c */
141extern int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
142extern int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv);
143extern int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv);
144extern int r128_cce_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
145extern int r128_cce_idle(struct drm_device *dev, void *data, struct drm_file *file_priv);
146extern int r128_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
147extern int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv);
148extern int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv);
149
150extern void r128_freelist_reset(struct drm_device *dev);
151
152extern int r128_wait_ring(drm_r128_private_t *dev_priv, int n);
153
154extern int r128_do_cce_idle(drm_r128_private_t *dev_priv);
155extern int r128_do_cleanup_cce(struct drm_device *dev);
156
157extern int r128_enable_vblank(struct drm_device *dev, unsigned int pipe);
158extern void r128_disable_vblank(struct drm_device *dev, unsigned int pipe);
159extern u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
160extern irqreturn_t r128_driver_irq_handler(int irq, void *arg);
161extern void r128_driver_irq_preinstall(struct drm_device *dev);
162extern int r128_driver_irq_postinstall(struct drm_device *dev);
163extern void r128_driver_irq_uninstall(struct drm_device *dev);
164extern void r128_driver_lastclose(struct drm_device *dev);
165extern int r128_driver_load(struct drm_device *dev, unsigned long flags);
166extern void r128_driver_preclose(struct drm_device *dev,
167 struct drm_file *file_priv);
168
169extern long r128_compat_ioctl(struct file *filp, unsigned int cmd,
170 unsigned long arg);
171
172/* Register definitions, register access macros and drmAddMap constants
173 * for Rage 128 kernel driver.
174 */
175
176#define R128_AUX_SC_CNTL 0x1660
177# define R128_AUX1_SC_EN (1 << 0)
178# define R128_AUX1_SC_MODE_OR (0 << 1)
179# define R128_AUX1_SC_MODE_NAND (1 << 1)
180# define R128_AUX2_SC_EN (1 << 2)
181# define R128_AUX2_SC_MODE_OR (0 << 3)
182# define R128_AUX2_SC_MODE_NAND (1 << 3)
183# define R128_AUX3_SC_EN (1 << 4)
184# define R128_AUX3_SC_MODE_OR (0 << 5)
185# define R128_AUX3_SC_MODE_NAND (1 << 5)
186#define R128_AUX1_SC_LEFT 0x1664
187#define R128_AUX1_SC_RIGHT 0x1668
188#define R128_AUX1_SC_TOP 0x166c
189#define R128_AUX1_SC_BOTTOM 0x1670
190#define R128_AUX2_SC_LEFT 0x1674
191#define R128_AUX2_SC_RIGHT 0x1678
192#define R128_AUX2_SC_TOP 0x167c
193#define R128_AUX2_SC_BOTTOM 0x1680
194#define R128_AUX3_SC_LEFT 0x1684
195#define R128_AUX3_SC_RIGHT 0x1688
196#define R128_AUX3_SC_TOP 0x168c
197#define R128_AUX3_SC_BOTTOM 0x1690
198
199#define R128_BRUSH_DATA0 0x1480
200#define R128_BUS_CNTL 0x0030
201# define R128_BUS_MASTER_DIS (1 << 6)
202
203#define R128_CLOCK_CNTL_INDEX 0x0008
204#define R128_CLOCK_CNTL_DATA 0x000c
205# define R128_PLL_WR_EN (1 << 7)
206#define R128_CONSTANT_COLOR_C 0x1d34
207#define R128_CRTC_OFFSET 0x0224
208#define R128_CRTC_OFFSET_CNTL 0x0228
209# define R128_CRTC_OFFSET_FLIP_CNTL (1 << 16)
210
211#define R128_DP_GUI_MASTER_CNTL 0x146c
212# define R128_GMC_SRC_PITCH_OFFSET_CNTL (1 << 0)
213# define R128_GMC_DST_PITCH_OFFSET_CNTL (1 << 1)
214# define R128_GMC_BRUSH_SOLID_COLOR (13 << 4)
215# define R128_GMC_BRUSH_NONE (15 << 4)
216# define R128_GMC_DST_16BPP (4 << 8)
217# define R128_GMC_DST_24BPP (5 << 8)
218# define R128_GMC_DST_32BPP (6 << 8)
219# define R128_GMC_DST_DATATYPE_SHIFT 8
220# define R128_GMC_SRC_DATATYPE_COLOR (3 << 12)
221# define R128_DP_SRC_SOURCE_MEMORY (2 << 24)
222# define R128_DP_SRC_SOURCE_HOST_DATA (3 << 24)
223# define R128_GMC_CLR_CMP_CNTL_DIS (1 << 28)
224# define R128_GMC_AUX_CLIP_DIS (1 << 29)
225# define R128_GMC_WR_MSK_DIS (1 << 30)
226# define R128_ROP3_S 0x00cc0000
227# define R128_ROP3_P 0x00f00000
228#define R128_DP_WRITE_MASK 0x16cc
229#define R128_DST_PITCH_OFFSET_C 0x1c80
230# define R128_DST_TILE (1 << 31)
231
232#define R128_GEN_INT_CNTL 0x0040
233# define R128_CRTC_VBLANK_INT_EN (1 << 0)
234#define R128_GEN_INT_STATUS 0x0044
235# define R128_CRTC_VBLANK_INT (1 << 0)
236# define R128_CRTC_VBLANK_INT_AK (1 << 0)
237#define R128_GEN_RESET_CNTL 0x00f0
238# define R128_SOFT_RESET_GUI (1 << 0)
239
240#define R128_GUI_SCRATCH_REG0 0x15e0
241#define R128_GUI_SCRATCH_REG1 0x15e4
242#define R128_GUI_SCRATCH_REG2 0x15e8
243#define R128_GUI_SCRATCH_REG3 0x15ec
244#define R128_GUI_SCRATCH_REG4 0x15f0
245#define R128_GUI_SCRATCH_REG5 0x15f4
246
247#define R128_GUI_STAT 0x1740
248# define R128_GUI_FIFOCNT_MASK 0x0fff
249# define R128_GUI_ACTIVE (1 << 31)
250
251#define R128_MCLK_CNTL 0x000f
252# define R128_FORCE_GCP (1 << 16)
253# define R128_FORCE_PIPE3D_CP (1 << 17)
254# define R128_FORCE_RCP (1 << 18)
255
256#define R128_PC_GUI_CTLSTAT 0x1748
257#define R128_PC_NGUI_CTLSTAT 0x0184
258# define R128_PC_FLUSH_GUI (3 << 0)
259# define R128_PC_RI_GUI (1 << 2)
260# define R128_PC_FLUSH_ALL 0x00ff
261# define R128_PC_BUSY (1 << 31)
262
263#define R128_PCI_GART_PAGE 0x017c
264#define R128_PRIM_TEX_CNTL_C 0x1cb0
265
266#define R128_SCALE_3D_CNTL 0x1a00
267#define R128_SEC_TEX_CNTL_C 0x1d00
268#define R128_SEC_TEXTURE_BORDER_COLOR_C 0x1d3c
269#define R128_SETUP_CNTL 0x1bc4
270#define R128_STEN_REF_MASK_C 0x1d40
271
272#define R128_TEX_CNTL_C 0x1c9c
273# define R128_TEX_CACHE_FLUSH (1 << 23)
274
275#define R128_WAIT_UNTIL 0x1720
276# define R128_EVENT_CRTC_OFFSET (1 << 0)
277#define R128_WINDOW_XY_OFFSET 0x1bcc
278
279/* CCE registers
280 */
281#define R128_PM4_BUFFER_OFFSET 0x0700
282#define R128_PM4_BUFFER_CNTL 0x0704
283# define R128_PM4_MASK (15 << 28)
284# define R128_PM4_NONPM4 (0 << 28)
285# define R128_PM4_192PIO (1 << 28)
286# define R128_PM4_192BM (2 << 28)
287# define R128_PM4_128PIO_64INDBM (3 << 28)
288# define R128_PM4_128BM_64INDBM (4 << 28)
289# define R128_PM4_64PIO_128INDBM (5 << 28)
290# define R128_PM4_64BM_128INDBM (6 << 28)
291# define R128_PM4_64PIO_64VCBM_64INDBM (7 << 28)
292# define R128_PM4_64BM_64VCBM_64INDBM (8 << 28)
293# define R128_PM4_64PIO_64VCPIO_64INDPIO (15 << 28)
294# define R128_PM4_BUFFER_CNTL_NOUPDATE (1 << 27)
295
296#define R128_PM4_BUFFER_WM_CNTL 0x0708
297# define R128_WMA_SHIFT 0
298# define R128_WMB_SHIFT 8
299# define R128_WMC_SHIFT 16
300# define R128_WB_WM_SHIFT 24
301
302#define R128_PM4_BUFFER_DL_RPTR_ADDR 0x070c
303#define R128_PM4_BUFFER_DL_RPTR 0x0710
304#define R128_PM4_BUFFER_DL_WPTR 0x0714
305# define R128_PM4_BUFFER_DL_DONE (1 << 31)
306
307#define R128_PM4_VC_FPU_SETUP 0x071c
308
309#define R128_PM4_IW_INDOFF 0x0738
310#define R128_PM4_IW_INDSIZE 0x073c
311
312#define R128_PM4_STAT 0x07b8
313# define R128_PM4_FIFOCNT_MASK 0x0fff
314# define R128_PM4_BUSY (1 << 16)
315# define R128_PM4_GUI_ACTIVE (1 << 31)
316
317#define R128_PM4_MICROCODE_ADDR 0x07d4
318#define R128_PM4_MICROCODE_RADDR 0x07d8
319#define R128_PM4_MICROCODE_DATAH 0x07dc
320#define R128_PM4_MICROCODE_DATAL 0x07e0
321
322#define R128_PM4_BUFFER_ADDR 0x07f0
323#define R128_PM4_MICRO_CNTL 0x07fc
324# define R128_PM4_MICRO_FREERUN (1 << 30)
325
326#define R128_PM4_FIFO_DATA_EVEN 0x1000
327#define R128_PM4_FIFO_DATA_ODD 0x1004
328
329/* CCE command packets
330 */
331#define R128_CCE_PACKET0 0x00000000
332#define R128_CCE_PACKET1 0x40000000
333#define R128_CCE_PACKET2 0x80000000
334#define R128_CCE_PACKET3 0xC0000000
335# define R128_CNTL_HOSTDATA_BLT 0x00009400
336# define R128_CNTL_PAINT_MULTI 0x00009A00
337# define R128_CNTL_BITBLT_MULTI 0x00009B00
338# define R128_3D_RNDR_GEN_INDX_PRIM 0x00002300
339
340#define R128_CCE_PACKET_MASK 0xC0000000
341#define R128_CCE_PACKET_COUNT_MASK 0x3fff0000
342#define R128_CCE_PACKET0_REG_MASK 0x000007ff
343#define R128_CCE_PACKET1_REG0_MASK 0x000007ff
344#define R128_CCE_PACKET1_REG1_MASK 0x003ff800
345
346#define R128_CCE_VC_CNTL_PRIM_TYPE_NONE 0x00000000
347#define R128_CCE_VC_CNTL_PRIM_TYPE_POINT 0x00000001
348#define R128_CCE_VC_CNTL_PRIM_TYPE_LINE 0x00000002
349#define R128_CCE_VC_CNTL_PRIM_TYPE_POLY_LINE 0x00000003
350#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST 0x00000004
351#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_FAN 0x00000005
352#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_STRIP 0x00000006
353#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 0x00000007
354#define R128_CCE_VC_CNTL_PRIM_WALK_IND 0x00000010
355#define R128_CCE_VC_CNTL_PRIM_WALK_LIST 0x00000020
356#define R128_CCE_VC_CNTL_PRIM_WALK_RING 0x00000030
357#define R128_CCE_VC_CNTL_NUM_SHIFT 16
358
359#define R128_DATATYPE_VQ 0
360#define R128_DATATYPE_CI4 1
361#define R128_DATATYPE_CI8 2
362#define R128_DATATYPE_ARGB1555 3
363#define R128_DATATYPE_RGB565 4
364#define R128_DATATYPE_RGB888 5
365#define R128_DATATYPE_ARGB8888 6
366#define R128_DATATYPE_RGB332 7
367#define R128_DATATYPE_Y8 8
368#define R128_DATATYPE_RGB8 9
369#define R128_DATATYPE_CI16 10
370#define R128_DATATYPE_YVYU422 11
371#define R128_DATATYPE_VYUY422 12
372#define R128_DATATYPE_AYUV444 14
373#define R128_DATATYPE_ARGB4444 15
374
375/* Constants */
376#define R128_AGP_OFFSET 0x02000000
377
378#define R128_WATERMARK_L 16
379#define R128_WATERMARK_M 8
380#define R128_WATERMARK_N 8
381#define R128_WATERMARK_K 128
382
383#define R128_MAX_USEC_TIMEOUT 100000 /* 100 ms */
384
385#define R128_LAST_FRAME_REG R128_GUI_SCRATCH_REG0
386#define R128_LAST_DISPATCH_REG R128_GUI_SCRATCH_REG1
387#define R128_MAX_VB_AGE 0x7fffffff
388#define R128_MAX_VB_VERTS (0xffff)
389
390#define R128_RING_HIGH_MARK 128
391
392#define R128_PERFORMANCE_BOXES 0
393
394#define R128_PCIGART_TABLE_SIZE 32768
395
396#define R128_READ(reg) DRM_READ32(dev_priv->mmio, (reg))
397#define R128_WRITE(reg, val) DRM_WRITE32(dev_priv->mmio, (reg), (val))
398#define R128_READ8(reg) DRM_READ8(dev_priv->mmio, (reg))
399#define R128_WRITE8(reg, val) DRM_WRITE8(dev_priv->mmio, (reg), (val))
400
401#define R128_WRITE_PLL(addr, val) \
402do { \
403 R128_WRITE8(R128_CLOCK_CNTL_INDEX, \
404 ((addr) & 0x1f) | R128_PLL_WR_EN); \
405 R128_WRITE(R128_CLOCK_CNTL_DATA, (val)); \
406} while (0)
407
408#define CCE_PACKET0(reg, n) (R128_CCE_PACKET0 | \
409 ((n) << 16) | ((reg) >> 2))
410#define CCE_PACKET1(reg0, reg1) (R128_CCE_PACKET1 | \
411 (((reg1) >> 2) << 11) | ((reg0) >> 2))
412#define CCE_PACKET2() (R128_CCE_PACKET2)
413#define CCE_PACKET3(pkt, n) (R128_CCE_PACKET3 | \
414 (pkt) | ((n) << 16))
415
416static __inline__ void r128_update_ring_snapshot(drm_r128_private_t *dev_priv)
417{
418 drm_r128_ring_buffer_t *ring = &dev_priv->ring;
419 ring->space = (GET_RING_HEAD(dev_priv) - ring->tail) * sizeof(u32);
420 if (ring->space <= 0)
421 ring->space += ring->size;
422}
423
424/* ================================================================
425 * Misc helper macros
426 */
427
428#define DEV_INIT_TEST_WITH_RETURN(_dev_priv) \
429do { \
430 if (!_dev_priv) { \
431 DRM_ERROR("called with no initialization\n"); \
432 return -EINVAL; \
433 } \
434} while (0)
435
436#define RING_SPACE_TEST_WITH_RETURN(dev_priv) \
437do { \
438 drm_r128_ring_buffer_t *ring = &dev_priv->ring; int i; \
439 if (ring->space < ring->high_mark) { \
440 for (i = 0 ; i < dev_priv->usec_timeout ; i++) { \
441 r128_update_ring_snapshot(dev_priv); \
442 if (ring->space >= ring->high_mark) \
443 goto __ring_space_done; \
444 DRM_UDELAY(1); \
445 } \
446 DRM_ERROR("ring space check failed!\n"); \
447 return -EBUSY; \
448 } \
449 __ring_space_done: \
450 ; \
451} while (0)
452
453#define VB_AGE_TEST_WITH_RETURN(dev_priv) \
454do { \
455 drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; \
456 if (sarea_priv->last_dispatch >= R128_MAX_VB_AGE) { \
457 int __ret = r128_do_cce_idle(dev_priv); \
458 if (__ret) \
459 return __ret; \
460 sarea_priv->last_dispatch = 0; \
461 r128_freelist_reset(dev); \
462 } \
463} while (0)
464
465#define R128_WAIT_UNTIL_PAGE_FLIPPED() do { \
466 OUT_RING(CCE_PACKET0(R128_WAIT_UNTIL, 0)); \
467 OUT_RING(R128_EVENT_CRTC_OFFSET); \
468} while (0)
469
470/* ================================================================
471 * Ring control
472 */
473
474#define R128_VERBOSE 0
475
476#define RING_LOCALS \
477 int write, _nr; unsigned int tail_mask; volatile u32 *ring;
478
479#define BEGIN_RING(n) do { \
480 if (R128_VERBOSE) \
481 DRM_INFO("BEGIN_RING(%d)\n", (n)); \
482 if (dev_priv->ring.space <= (n) * sizeof(u32)) { \
483 COMMIT_RING(); \
484 r128_wait_ring(dev_priv, (n) * sizeof(u32)); \
485 } \
486 _nr = n; dev_priv->ring.space -= (n) * sizeof(u32); \
487 ring = dev_priv->ring.start; \
488 write = dev_priv->ring.tail; \
489 tail_mask = dev_priv->ring.tail_mask; \
490} while (0)
491
492/* You can set this to zero if you want. If the card locks up, you'll
493 * need to keep this set. It works around a bug in early revs of the
494 * Rage 128 chipset, where the CCE would read 32 dwords past the end of
495 * the ring buffer before wrapping around.
496 */
497#define R128_BROKEN_CCE 1
498
499#define ADVANCE_RING() do { \
500 if (R128_VERBOSE) \
501 DRM_INFO("ADVANCE_RING() wr=0x%06x tail=0x%06x\n", \
502 write, dev_priv->ring.tail); \
503 if (R128_BROKEN_CCE && write < 32) \
504 memcpy(dev_priv->ring.end, \
505 dev_priv->ring.start, \
506 write * sizeof(u32)); \
507 if (((dev_priv->ring.tail + _nr) & tail_mask) != write) \
508 DRM_ERROR( \
509 "ADVANCE_RING(): mismatch: nr: %x write: %x line: %d\n", \
510 ((dev_priv->ring.tail + _nr) & tail_mask), \
511 write, __LINE__); \
512 else \
513 dev_priv->ring.tail = write; \
514} while (0)
515
516#define COMMIT_RING() do { \
517 if (R128_VERBOSE) \
518 DRM_INFO("COMMIT_RING() tail=0x%06x\n", \
519 dev_priv->ring.tail); \
520 mb(); \
521 R128_WRITE(R128_PM4_BUFFER_DL_WPTR, dev_priv->ring.tail); \
522 R128_READ(R128_PM4_BUFFER_DL_WPTR); \
523} while (0)
524
525#define OUT_RING(x) do { \
526 if (R128_VERBOSE) \
527 DRM_INFO(" OUT_RING( 0x%08x ) at 0x%x\n", \
528 (unsigned int)(x), write); \
529 ring[write++] = cpu_to_le32(x); \
530 write &= tail_mask; \
531} while (0)
532
533#endif /* __R128_DRV_H__ */
1/* r128_drv.h -- Private header for r128 driver -*- linux-c -*-
2 * Created: Mon Dec 13 09:51:11 1999 by faith@precisioninsight.com
3 */
4/*
5 * Copyright 1999 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 * Rickard E. (Rik) Faith <faith@valinux.com>
30 * Kevin E. Martin <martin@valinux.com>
31 * Gareth Hughes <gareth@valinux.com>
32 * Michel Dänzer <daenzerm@student.ethz.ch>
33 */
34
35#ifndef __R128_DRV_H__
36#define __R128_DRV_H__
37
38#include <linux/delay.h>
39#include <linux/io.h>
40#include <linux/irqreturn.h>
41
42#include <drm/drm_ioctl.h>
43#include <drm/drm_legacy.h>
44#include <drm/r128_drm.h>
45
46#include "ati_pcigart.h"
47
48/* General customization:
49 */
50#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc."
51
52#define DRIVER_NAME "r128"
53#define DRIVER_DESC "ATI Rage 128"
54#define DRIVER_DATE "20030725"
55
56/* Interface history:
57 *
58 * ?? - ??
59 * 2.4 - Add support for ycbcr textures (no new ioctls)
60 * 2.5 - Add FLIP ioctl, disable FULLSCREEN.
61 */
62#define DRIVER_MAJOR 2
63#define DRIVER_MINOR 5
64#define DRIVER_PATCHLEVEL 0
65
66#define GET_RING_HEAD(dev_priv) R128_READ(R128_PM4_BUFFER_DL_RPTR)
67
68typedef struct drm_r128_freelist {
69 unsigned int age;
70 struct drm_buf *buf;
71 struct drm_r128_freelist *next;
72 struct drm_r128_freelist *prev;
73} drm_r128_freelist_t;
74
75typedef struct drm_r128_ring_buffer {
76 u32 *start;
77 u32 *end;
78 int size;
79 int size_l2qw;
80
81 u32 tail;
82 u32 tail_mask;
83 int space;
84
85 int high_mark;
86} drm_r128_ring_buffer_t;
87
88typedef struct drm_r128_private {
89 drm_r128_ring_buffer_t ring;
90 drm_r128_sarea_t *sarea_priv;
91
92 int cce_mode;
93 int cce_fifo_size;
94 int cce_running;
95
96 drm_r128_freelist_t *head;
97 drm_r128_freelist_t *tail;
98
99 int usec_timeout;
100 int is_pci;
101 unsigned long cce_buffers_offset;
102
103 atomic_t idle_count;
104
105 int page_flipping;
106 int current_page;
107 u32 crtc_offset;
108 u32 crtc_offset_cntl;
109
110 atomic_t vbl_received;
111
112 u32 color_fmt;
113 unsigned int front_offset;
114 unsigned int front_pitch;
115 unsigned int back_offset;
116 unsigned int back_pitch;
117
118 u32 depth_fmt;
119 unsigned int depth_offset;
120 unsigned int depth_pitch;
121 unsigned int span_offset;
122
123 u32 front_pitch_offset_c;
124 u32 back_pitch_offset_c;
125 u32 depth_pitch_offset_c;
126 u32 span_pitch_offset_c;
127
128 drm_local_map_t *sarea;
129 drm_local_map_t *mmio;
130 drm_local_map_t *cce_ring;
131 drm_local_map_t *ring_rptr;
132 drm_local_map_t *agp_textures;
133 struct drm_ati_pcigart_info gart_info;
134} drm_r128_private_t;
135
136typedef struct drm_r128_buf_priv {
137 u32 age;
138 int prim;
139 int discard;
140 int dispatched;
141 drm_r128_freelist_t *list_entry;
142} drm_r128_buf_priv_t;
143
144extern const struct drm_ioctl_desc r128_ioctls[];
145extern int r128_max_ioctl;
146
147 /* r128_cce.c */
148extern int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
149extern int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv);
150extern int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv);
151extern int r128_cce_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
152extern int r128_cce_idle(struct drm_device *dev, void *data, struct drm_file *file_priv);
153extern int r128_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
154extern int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv);
155extern int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv);
156
157extern int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv);
158extern int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv);
159extern int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv);
160
161extern void r128_freelist_reset(struct drm_device *dev);
162
163extern int r128_wait_ring(drm_r128_private_t *dev_priv, int n);
164
165extern int r128_do_cce_idle(drm_r128_private_t *dev_priv);
166extern int r128_do_cleanup_cce(struct drm_device *dev);
167
168extern int r128_enable_vblank(struct drm_device *dev, unsigned int pipe);
169extern void r128_disable_vblank(struct drm_device *dev, unsigned int pipe);
170extern u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
171extern irqreturn_t r128_driver_irq_handler(int irq, void *arg);
172extern void r128_driver_irq_preinstall(struct drm_device *dev);
173extern int r128_driver_irq_postinstall(struct drm_device *dev);
174extern void r128_driver_irq_uninstall(struct drm_device *dev);
175extern void r128_driver_lastclose(struct drm_device *dev);
176extern int r128_driver_load(struct drm_device *dev, unsigned long flags);
177extern void r128_driver_preclose(struct drm_device *dev,
178 struct drm_file *file_priv);
179
180extern long r128_compat_ioctl(struct file *filp, unsigned int cmd,
181 unsigned long arg);
182
183/* Register definitions, register access macros and drmAddMap constants
184 * for Rage 128 kernel driver.
185 */
186
187#define R128_AUX_SC_CNTL 0x1660
188# define R128_AUX1_SC_EN (1 << 0)
189# define R128_AUX1_SC_MODE_OR (0 << 1)
190# define R128_AUX1_SC_MODE_NAND (1 << 1)
191# define R128_AUX2_SC_EN (1 << 2)
192# define R128_AUX2_SC_MODE_OR (0 << 3)
193# define R128_AUX2_SC_MODE_NAND (1 << 3)
194# define R128_AUX3_SC_EN (1 << 4)
195# define R128_AUX3_SC_MODE_OR (0 << 5)
196# define R128_AUX3_SC_MODE_NAND (1 << 5)
197#define R128_AUX1_SC_LEFT 0x1664
198#define R128_AUX1_SC_RIGHT 0x1668
199#define R128_AUX1_SC_TOP 0x166c
200#define R128_AUX1_SC_BOTTOM 0x1670
201#define R128_AUX2_SC_LEFT 0x1674
202#define R128_AUX2_SC_RIGHT 0x1678
203#define R128_AUX2_SC_TOP 0x167c
204#define R128_AUX2_SC_BOTTOM 0x1680
205#define R128_AUX3_SC_LEFT 0x1684
206#define R128_AUX3_SC_RIGHT 0x1688
207#define R128_AUX3_SC_TOP 0x168c
208#define R128_AUX3_SC_BOTTOM 0x1690
209
210#define R128_BRUSH_DATA0 0x1480
211#define R128_BUS_CNTL 0x0030
212# define R128_BUS_MASTER_DIS (1 << 6)
213
214#define R128_CLOCK_CNTL_INDEX 0x0008
215#define R128_CLOCK_CNTL_DATA 0x000c
216# define R128_PLL_WR_EN (1 << 7)
217#define R128_CONSTANT_COLOR_C 0x1d34
218#define R128_CRTC_OFFSET 0x0224
219#define R128_CRTC_OFFSET_CNTL 0x0228
220# define R128_CRTC_OFFSET_FLIP_CNTL (1 << 16)
221
222#define R128_DP_GUI_MASTER_CNTL 0x146c
223# define R128_GMC_SRC_PITCH_OFFSET_CNTL (1 << 0)
224# define R128_GMC_DST_PITCH_OFFSET_CNTL (1 << 1)
225# define R128_GMC_BRUSH_SOLID_COLOR (13 << 4)
226# define R128_GMC_BRUSH_NONE (15 << 4)
227# define R128_GMC_DST_16BPP (4 << 8)
228# define R128_GMC_DST_24BPP (5 << 8)
229# define R128_GMC_DST_32BPP (6 << 8)
230# define R128_GMC_DST_DATATYPE_SHIFT 8
231# define R128_GMC_SRC_DATATYPE_COLOR (3 << 12)
232# define R128_DP_SRC_SOURCE_MEMORY (2 << 24)
233# define R128_DP_SRC_SOURCE_HOST_DATA (3 << 24)
234# define R128_GMC_CLR_CMP_CNTL_DIS (1 << 28)
235# define R128_GMC_AUX_CLIP_DIS (1 << 29)
236# define R128_GMC_WR_MSK_DIS (1 << 30)
237# define R128_ROP3_S 0x00cc0000
238# define R128_ROP3_P 0x00f00000
239#define R128_DP_WRITE_MASK 0x16cc
240#define R128_DST_PITCH_OFFSET_C 0x1c80
241# define R128_DST_TILE (1 << 31)
242
243#define R128_GEN_INT_CNTL 0x0040
244# define R128_CRTC_VBLANK_INT_EN (1 << 0)
245#define R128_GEN_INT_STATUS 0x0044
246# define R128_CRTC_VBLANK_INT (1 << 0)
247# define R128_CRTC_VBLANK_INT_AK (1 << 0)
248#define R128_GEN_RESET_CNTL 0x00f0
249# define R128_SOFT_RESET_GUI (1 << 0)
250
251#define R128_GUI_SCRATCH_REG0 0x15e0
252#define R128_GUI_SCRATCH_REG1 0x15e4
253#define R128_GUI_SCRATCH_REG2 0x15e8
254#define R128_GUI_SCRATCH_REG3 0x15ec
255#define R128_GUI_SCRATCH_REG4 0x15f0
256#define R128_GUI_SCRATCH_REG5 0x15f4
257
258#define R128_GUI_STAT 0x1740
259# define R128_GUI_FIFOCNT_MASK 0x0fff
260# define R128_GUI_ACTIVE (1 << 31)
261
262#define R128_MCLK_CNTL 0x000f
263# define R128_FORCE_GCP (1 << 16)
264# define R128_FORCE_PIPE3D_CP (1 << 17)
265# define R128_FORCE_RCP (1 << 18)
266
267#define R128_PC_GUI_CTLSTAT 0x1748
268#define R128_PC_NGUI_CTLSTAT 0x0184
269# define R128_PC_FLUSH_GUI (3 << 0)
270# define R128_PC_RI_GUI (1 << 2)
271# define R128_PC_FLUSH_ALL 0x00ff
272# define R128_PC_BUSY (1 << 31)
273
274#define R128_PCI_GART_PAGE 0x017c
275#define R128_PRIM_TEX_CNTL_C 0x1cb0
276
277#define R128_SCALE_3D_CNTL 0x1a00
278#define R128_SEC_TEX_CNTL_C 0x1d00
279#define R128_SEC_TEXTURE_BORDER_COLOR_C 0x1d3c
280#define R128_SETUP_CNTL 0x1bc4
281#define R128_STEN_REF_MASK_C 0x1d40
282
283#define R128_TEX_CNTL_C 0x1c9c
284# define R128_TEX_CACHE_FLUSH (1 << 23)
285
286#define R128_WAIT_UNTIL 0x1720
287# define R128_EVENT_CRTC_OFFSET (1 << 0)
288#define R128_WINDOW_XY_OFFSET 0x1bcc
289
290/* CCE registers
291 */
292#define R128_PM4_BUFFER_OFFSET 0x0700
293#define R128_PM4_BUFFER_CNTL 0x0704
294# define R128_PM4_MASK (15 << 28)
295# define R128_PM4_NONPM4 (0 << 28)
296# define R128_PM4_192PIO (1 << 28)
297# define R128_PM4_192BM (2 << 28)
298# define R128_PM4_128PIO_64INDBM (3 << 28)
299# define R128_PM4_128BM_64INDBM (4 << 28)
300# define R128_PM4_64PIO_128INDBM (5 << 28)
301# define R128_PM4_64BM_128INDBM (6 << 28)
302# define R128_PM4_64PIO_64VCBM_64INDBM (7 << 28)
303# define R128_PM4_64BM_64VCBM_64INDBM (8U << 28)
304# define R128_PM4_64PIO_64VCPIO_64INDPIO (15U << 28)
305# define R128_PM4_BUFFER_CNTL_NOUPDATE (1 << 27)
306
307#define R128_PM4_BUFFER_WM_CNTL 0x0708
308# define R128_WMA_SHIFT 0
309# define R128_WMB_SHIFT 8
310# define R128_WMC_SHIFT 16
311# define R128_WB_WM_SHIFT 24
312
313#define R128_PM4_BUFFER_DL_RPTR_ADDR 0x070c
314#define R128_PM4_BUFFER_DL_RPTR 0x0710
315#define R128_PM4_BUFFER_DL_WPTR 0x0714
316# define R128_PM4_BUFFER_DL_DONE (1 << 31)
317
318#define R128_PM4_VC_FPU_SETUP 0x071c
319
320#define R128_PM4_IW_INDOFF 0x0738
321#define R128_PM4_IW_INDSIZE 0x073c
322
323#define R128_PM4_STAT 0x07b8
324# define R128_PM4_FIFOCNT_MASK 0x0fff
325# define R128_PM4_BUSY (1 << 16)
326# define R128_PM4_GUI_ACTIVE (1 << 31)
327
328#define R128_PM4_MICROCODE_ADDR 0x07d4
329#define R128_PM4_MICROCODE_RADDR 0x07d8
330#define R128_PM4_MICROCODE_DATAH 0x07dc
331#define R128_PM4_MICROCODE_DATAL 0x07e0
332
333#define R128_PM4_BUFFER_ADDR 0x07f0
334#define R128_PM4_MICRO_CNTL 0x07fc
335# define R128_PM4_MICRO_FREERUN (1 << 30)
336
337#define R128_PM4_FIFO_DATA_EVEN 0x1000
338#define R128_PM4_FIFO_DATA_ODD 0x1004
339
340/* CCE command packets
341 */
342#define R128_CCE_PACKET0 0x00000000
343#define R128_CCE_PACKET1 0x40000000
344#define R128_CCE_PACKET2 0x80000000
345#define R128_CCE_PACKET3 0xC0000000
346# define R128_CNTL_HOSTDATA_BLT 0x00009400
347# define R128_CNTL_PAINT_MULTI 0x00009A00
348# define R128_CNTL_BITBLT_MULTI 0x00009B00
349# define R128_3D_RNDR_GEN_INDX_PRIM 0x00002300
350
351#define R128_CCE_PACKET_MASK 0xC0000000
352#define R128_CCE_PACKET_COUNT_MASK 0x3fff0000
353#define R128_CCE_PACKET0_REG_MASK 0x000007ff
354#define R128_CCE_PACKET1_REG0_MASK 0x000007ff
355#define R128_CCE_PACKET1_REG1_MASK 0x003ff800
356
357#define R128_CCE_VC_CNTL_PRIM_TYPE_NONE 0x00000000
358#define R128_CCE_VC_CNTL_PRIM_TYPE_POINT 0x00000001
359#define R128_CCE_VC_CNTL_PRIM_TYPE_LINE 0x00000002
360#define R128_CCE_VC_CNTL_PRIM_TYPE_POLY_LINE 0x00000003
361#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST 0x00000004
362#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_FAN 0x00000005
363#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_STRIP 0x00000006
364#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 0x00000007
365#define R128_CCE_VC_CNTL_PRIM_WALK_IND 0x00000010
366#define R128_CCE_VC_CNTL_PRIM_WALK_LIST 0x00000020
367#define R128_CCE_VC_CNTL_PRIM_WALK_RING 0x00000030
368#define R128_CCE_VC_CNTL_NUM_SHIFT 16
369
370#define R128_DATATYPE_VQ 0
371#define R128_DATATYPE_CI4 1
372#define R128_DATATYPE_CI8 2
373#define R128_DATATYPE_ARGB1555 3
374#define R128_DATATYPE_RGB565 4
375#define R128_DATATYPE_RGB888 5
376#define R128_DATATYPE_ARGB8888 6
377#define R128_DATATYPE_RGB332 7
378#define R128_DATATYPE_Y8 8
379#define R128_DATATYPE_RGB8 9
380#define R128_DATATYPE_CI16 10
381#define R128_DATATYPE_YVYU422 11
382#define R128_DATATYPE_VYUY422 12
383#define R128_DATATYPE_AYUV444 14
384#define R128_DATATYPE_ARGB4444 15
385
386/* Constants */
387#define R128_AGP_OFFSET 0x02000000
388
389#define R128_WATERMARK_L 16
390#define R128_WATERMARK_M 8
391#define R128_WATERMARK_N 8
392#define R128_WATERMARK_K 128
393
394#define R128_MAX_USEC_TIMEOUT 100000 /* 100 ms */
395
396#define R128_LAST_FRAME_REG R128_GUI_SCRATCH_REG0
397#define R128_LAST_DISPATCH_REG R128_GUI_SCRATCH_REG1
398#define R128_MAX_VB_AGE 0x7fffffff
399#define R128_MAX_VB_VERTS (0xffff)
400
401#define R128_RING_HIGH_MARK 128
402
403#define R128_PERFORMANCE_BOXES 0
404
405#define R128_PCIGART_TABLE_SIZE 32768
406
407#define R128_READ(reg) readl(((void __iomem *)dev_priv->mmio->handle) + (reg))
408#define R128_WRITE(reg, val) writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
409#define R128_READ8(reg) readb(((void __iomem *)dev_priv->mmio->handle) + (reg))
410#define R128_WRITE8(reg, val) writeb(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
411
412#define R128_WRITE_PLL(addr, val) \
413do { \
414 R128_WRITE8(R128_CLOCK_CNTL_INDEX, \
415 ((addr) & 0x1f) | R128_PLL_WR_EN); \
416 R128_WRITE(R128_CLOCK_CNTL_DATA, (val)); \
417} while (0)
418
419#define CCE_PACKET0(reg, n) (R128_CCE_PACKET0 | \
420 ((n) << 16) | ((reg) >> 2))
421#define CCE_PACKET1(reg0, reg1) (R128_CCE_PACKET1 | \
422 (((reg1) >> 2) << 11) | ((reg0) >> 2))
423#define CCE_PACKET2() (R128_CCE_PACKET2)
424#define CCE_PACKET3(pkt, n) (R128_CCE_PACKET3 | \
425 (pkt) | ((n) << 16))
426
427static __inline__ void r128_update_ring_snapshot(drm_r128_private_t *dev_priv)
428{
429 drm_r128_ring_buffer_t *ring = &dev_priv->ring;
430 ring->space = (GET_RING_HEAD(dev_priv) - ring->tail) * sizeof(u32);
431 if (ring->space <= 0)
432 ring->space += ring->size;
433}
434
435/* ================================================================
436 * Misc helper macros
437 */
438
439#define DEV_INIT_TEST_WITH_RETURN(_dev_priv) \
440do { \
441 if (!_dev_priv) { \
442 DRM_ERROR("called with no initialization\n"); \
443 return -EINVAL; \
444 } \
445} while (0)
446
447#define RING_SPACE_TEST_WITH_RETURN(dev_priv) \
448do { \
449 drm_r128_ring_buffer_t *ring = &dev_priv->ring; int i; \
450 if (ring->space < ring->high_mark) { \
451 for (i = 0 ; i < dev_priv->usec_timeout ; i++) { \
452 r128_update_ring_snapshot(dev_priv); \
453 if (ring->space >= ring->high_mark) \
454 goto __ring_space_done; \
455 udelay(1); \
456 } \
457 DRM_ERROR("ring space check failed!\n"); \
458 return -EBUSY; \
459 } \
460 __ring_space_done: \
461 ; \
462} while (0)
463
464#define VB_AGE_TEST_WITH_RETURN(dev_priv) \
465do { \
466 drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; \
467 if (sarea_priv->last_dispatch >= R128_MAX_VB_AGE) { \
468 int __ret = r128_do_cce_idle(dev_priv); \
469 if (__ret) \
470 return __ret; \
471 sarea_priv->last_dispatch = 0; \
472 r128_freelist_reset(dev); \
473 } \
474} while (0)
475
476#define R128_WAIT_UNTIL_PAGE_FLIPPED() do { \
477 OUT_RING(CCE_PACKET0(R128_WAIT_UNTIL, 0)); \
478 OUT_RING(R128_EVENT_CRTC_OFFSET); \
479} while (0)
480
481/* ================================================================
482 * Ring control
483 */
484
485#define R128_VERBOSE 0
486
487#define RING_LOCALS \
488 int write, _nr; unsigned int tail_mask; volatile u32 *ring;
489
490#define BEGIN_RING(n) do { \
491 if (R128_VERBOSE) \
492 DRM_INFO("BEGIN_RING(%d)\n", (n)); \
493 if (dev_priv->ring.space <= (n) * sizeof(u32)) { \
494 COMMIT_RING(); \
495 r128_wait_ring(dev_priv, (n) * sizeof(u32)); \
496 } \
497 _nr = n; dev_priv->ring.space -= (n) * sizeof(u32); \
498 ring = dev_priv->ring.start; \
499 write = dev_priv->ring.tail; \
500 tail_mask = dev_priv->ring.tail_mask; \
501} while (0)
502
503/* You can set this to zero if you want. If the card locks up, you'll
504 * need to keep this set. It works around a bug in early revs of the
505 * Rage 128 chipset, where the CCE would read 32 dwords past the end of
506 * the ring buffer before wrapping around.
507 */
508#define R128_BROKEN_CCE 1
509
510#define ADVANCE_RING() do { \
511 if (R128_VERBOSE) \
512 DRM_INFO("ADVANCE_RING() wr=0x%06x tail=0x%06x\n", \
513 write, dev_priv->ring.tail); \
514 if (R128_BROKEN_CCE && write < 32) \
515 memcpy(dev_priv->ring.end, \
516 dev_priv->ring.start, \
517 write * sizeof(u32)); \
518 if (((dev_priv->ring.tail + _nr) & tail_mask) != write) \
519 DRM_ERROR( \
520 "ADVANCE_RING(): mismatch: nr: %x write: %x line: %d\n", \
521 ((dev_priv->ring.tail + _nr) & tail_mask), \
522 write, __LINE__); \
523 else \
524 dev_priv->ring.tail = write; \
525} while (0)
526
527#define COMMIT_RING() do { \
528 if (R128_VERBOSE) \
529 DRM_INFO("COMMIT_RING() tail=0x%06x\n", \
530 dev_priv->ring.tail); \
531 mb(); \
532 R128_WRITE(R128_PM4_BUFFER_DL_WPTR, dev_priv->ring.tail); \
533 R128_READ(R128_PM4_BUFFER_DL_WPTR); \
534} while (0)
535
536#define OUT_RING(x) do { \
537 if (R128_VERBOSE) \
538 DRM_INFO(" OUT_RING( 0x%08x ) at 0x%x\n", \
539 (unsigned int)(x), write); \
540 ring[write++] = cpu_to_le32(x); \
541 write &= tail_mask; \
542} while (0)
543
544#endif /* __R128_DRV_H__ */