diff options
Diffstat (limited to 'drivers/gpu/drm/r128/r128_drv.h')
| -rw-r--r-- | drivers/gpu/drm/r128/r128_drv.h | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h new file mode 100644 index 000000000..970e192b0 --- /dev/null +++ b/drivers/gpu/drm/r128/r128_drv.h @@ -0,0 +1,544 @@ +/* r128_drv.h -- Private header for r128 driver -*- linux-c -*- + * Created: Mon Dec 13 09:51:11 1999 by faith@precisioninsight.com + */ +/* + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Kevin E. Martin <martin@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * Michel Dänzer <daenzerm@student.ethz.ch> + */ + +#ifndef __R128_DRV_H__ +#define __R128_DRV_H__ + +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/irqreturn.h> + +#include <drm/drm_ioctl.h> +#include <drm/drm_legacy.h> +#include <drm/r128_drm.h> + +#include "ati_pcigart.h" + +/* General customization: + */ +#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc." + +#define DRIVER_NAME "r128" +#define DRIVER_DESC "ATI Rage 128" +#define DRIVER_DATE "20030725" + +/* Interface history: + * + * ?? - ?? + * 2.4 - Add support for ycbcr textures (no new ioctls) + * 2.5 - Add FLIP ioctl, disable FULLSCREEN. + */ +#define DRIVER_MAJOR 2 +#define DRIVER_MINOR 5 +#define DRIVER_PATCHLEVEL 0 + +#define GET_RING_HEAD(dev_priv) R128_READ(R128_PM4_BUFFER_DL_RPTR) + +typedef struct drm_r128_freelist { + unsigned int age; + struct drm_buf *buf; + struct drm_r128_freelist *next; + struct drm_r128_freelist *prev; +} drm_r128_freelist_t; + +typedef struct drm_r128_ring_buffer { + u32 *start; + u32 *end; + int size; + int size_l2qw; + + u32 tail; + u32 tail_mask; + int space; + + int high_mark; +} drm_r128_ring_buffer_t; + +typedef struct drm_r128_private { + drm_r128_ring_buffer_t ring; + drm_r128_sarea_t *sarea_priv; + + int cce_mode; + int cce_fifo_size; + int cce_running; + + drm_r128_freelist_t *head; + drm_r128_freelist_t *tail; + + int usec_timeout; + int is_pci; + unsigned long cce_buffers_offset; + + atomic_t idle_count; + + int page_flipping; + int current_page; + u32 crtc_offset; + u32 crtc_offset_cntl; + + atomic_t vbl_received; + + u32 color_fmt; + unsigned int front_offset; + unsigned int front_pitch; + unsigned int back_offset; + unsigned int back_pitch; + + u32 depth_fmt; + unsigned int depth_offset; + unsigned int depth_pitch; + unsigned int span_offset; + + u32 front_pitch_offset_c; + u32 back_pitch_offset_c; + u32 depth_pitch_offset_c; + u32 span_pitch_offset_c; + + drm_local_map_t *sarea; + drm_local_map_t *mmio; + drm_local_map_t *cce_ring; + drm_local_map_t *ring_rptr; + drm_local_map_t *agp_textures; + struct drm_ati_pcigart_info gart_info; +} drm_r128_private_t; + +typedef struct drm_r128_buf_priv { + u32 age; + int prim; + int discard; + int dispatched; + drm_r128_freelist_t *list_entry; +} drm_r128_buf_priv_t; + +extern const struct drm_ioctl_desc r128_ioctls[]; +extern int r128_max_ioctl; + + /* r128_cce.c */ +extern int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_reset(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_idle(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv); + +extern int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv); + +extern void r128_freelist_reset(struct drm_device *dev); + +extern int r128_wait_ring(drm_r128_private_t *dev_priv, int n); + +extern int r128_do_cce_idle(drm_r128_private_t *dev_priv); +extern int r128_do_cleanup_cce(struct drm_device *dev); + +extern int r128_enable_vblank(struct drm_device *dev, unsigned int pipe); +extern void r128_disable_vblank(struct drm_device *dev, unsigned int pipe); +extern u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe); +extern irqreturn_t r128_driver_irq_handler(int irq, void *arg); +extern void r128_driver_irq_preinstall(struct drm_device *dev); +extern int r128_driver_irq_postinstall(struct drm_device *dev); +extern void r128_driver_irq_uninstall(struct drm_device *dev); +extern void r128_driver_lastclose(struct drm_device *dev); +extern int r128_driver_load(struct drm_device *dev, unsigned long flags); +extern void r128_driver_preclose(struct drm_device *dev, + struct drm_file *file_priv); + +extern long r128_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg); + +/* Register definitions, register access macros and drmAddMap constants + * for Rage 128 kernel driver. + */ + +#define R128_AUX_SC_CNTL 0x1660 +# define R128_AUX1_SC_EN (1 << 0) +# define R128_AUX1_SC_MODE_OR (0 << 1) +# define R128_AUX1_SC_MODE_NAND (1 << 1) +# define R128_AUX2_SC_EN (1 << 2) +# define R128_AUX2_SC_MODE_OR (0 << 3) +# define R128_AUX2_SC_MODE_NAND (1 << 3) +# define R128_AUX3_SC_EN (1 << 4) +# define R128_AUX3_SC_MODE_OR (0 << 5) +# define R128_AUX3_SC_MODE_NAND (1 << 5) +#define R128_AUX1_SC_LEFT 0x1664 +#define R128_AUX1_SC_RIGHT 0x1668 +#define R128_AUX1_SC_TOP 0x166c +#define R128_AUX1_SC_BOTTOM 0x1670 +#define R128_AUX2_SC_LEFT 0x1674 +#define R128_AUX2_SC_RIGHT 0x1678 +#define R128_AUX2_SC_TOP 0x167c +#define R128_AUX2_SC_BOTTOM 0x1680 +#define R128_AUX3_SC_LEFT 0x1684 +#define R128_AUX3_SC_RIGHT 0x1688 +#define R128_AUX3_SC_TOP 0x168c +#define R128_AUX3_SC_BOTTOM 0x1690 + +#define R128_BRUSH_DATA0 0x1480 +#define R128_BUS_CNTL 0x0030 +# define R128_BUS_MASTER_DIS (1 << 6) + +#define R128_CLOCK_CNTL_INDEX 0x0008 +#define R128_CLOCK_CNTL_DATA 0x000c +# define R128_PLL_WR_EN (1 << 7) +#define R128_CONSTANT_COLOR_C 0x1d34 +#define R128_CRTC_OFFSET 0x0224 +#define R128_CRTC_OFFSET_CNTL 0x0228 +# define R128_CRTC_OFFSET_FLIP_CNTL (1 << 16) + +#define R128_DP_GUI_MASTER_CNTL 0x146c +# define R128_GMC_SRC_PITCH_OFFSET_CNTL (1 << 0) +# define R128_GMC_DST_PITCH_OFFSET_CNTL (1 << 1) +# define R128_GMC_BRUSH_SOLID_COLOR (13 << 4) +# define R128_GMC_BRUSH_NONE (15 << 4) +# define R128_GMC_DST_16BPP (4 << 8) +# define R128_GMC_DST_24BPP (5 << 8) +# define R128_GMC_DST_32BPP (6 << 8) +# define R128_GMC_DST_DATATYPE_SHIFT 8 +# define R128_GMC_SRC_DATATYPE_COLOR (3 << 12) +# define R128_DP_SRC_SOURCE_MEMORY (2 << 24) +# define R128_DP_SRC_SOURCE_HOST_DATA (3 << 24) +# define R128_GMC_CLR_CMP_CNTL_DIS (1 << 28) +# define R128_GMC_AUX_CLIP_DIS (1 << 29) +# define R128_GMC_WR_MSK_DIS (1 << 30) +# define R128_ROP3_S 0x00cc0000 +# define R128_ROP3_P 0x00f00000 +#define R128_DP_WRITE_MASK 0x16cc +#define R128_DST_PITCH_OFFSET_C 0x1c80 +# define R128_DST_TILE (1 << 31) + +#define R128_GEN_INT_CNTL 0x0040 +# define R128_CRTC_VBLANK_INT_EN (1 << 0) +#define R128_GEN_INT_STATUS 0x0044 +# define R128_CRTC_VBLANK_INT (1 << 0) +# define R128_CRTC_VBLANK_INT_AK (1 << 0) +#define R128_GEN_RESET_CNTL 0x00f0 +# define R128_SOFT_RESET_GUI (1 << 0) + +#define R128_GUI_SCRATCH_REG0 0x15e0 +#define R128_GUI_SCRATCH_REG1 0x15e4 +#define R128_GUI_SCRATCH_REG2 0x15e8 +#define R128_GUI_SCRATCH_REG3 0x15ec +#define R128_GUI_SCRATCH_REG4 0x15f0 +#define R128_GUI_SCRATCH_REG5 0x15f4 + +#define R128_GUI_STAT 0x1740 +# define R128_GUI_FIFOCNT_MASK 0x0fff +# define R128_GUI_ACTIVE (1 << 31) + +#define R128_MCLK_CNTL 0x000f +# define R128_FORCE_GCP (1 << 16) +# define R128_FORCE_PIPE3D_CP (1 << 17) +# define R128_FORCE_RCP (1 << 18) + +#define R128_PC_GUI_CTLSTAT 0x1748 +#define R128_PC_NGUI_CTLSTAT 0x0184 +# define R128_PC_FLUSH_GUI (3 << 0) +# define R128_PC_RI_GUI (1 << 2) +# define R128_PC_FLUSH_ALL 0x00ff +# define R128_PC_BUSY (1 << 31) + +#define R128_PCI_GART_PAGE 0x017c +#define R128_PRIM_TEX_CNTL_C 0x1cb0 + +#define R128_SCALE_3D_CNTL 0x1a00 +#define R128_SEC_TEX_CNTL_C 0x1d00 +#define R128_SEC_TEXTURE_BORDER_COLOR_C 0x1d3c +#define R128_SETUP_CNTL 0x1bc4 +#define R128_STEN_REF_MASK_C 0x1d40 + +#define R128_TEX_CNTL_C 0x1c9c +# define R128_TEX_CACHE_FLUSH (1 << 23) + +#define R128_WAIT_UNTIL 0x1720 +# define R128_EVENT_CRTC_OFFSET (1 << 0) +#define R128_WINDOW_XY_OFFSET 0x1bcc + +/* CCE registers + */ +#define R128_PM4_BUFFER_OFFSET 0x0700 +#define R128_PM4_BUFFER_CNTL 0x0704 +# define R128_PM4_MASK (15 << 28) +# define R128_PM4_NONPM4 (0 << 28) +# define R128_PM4_192PIO (1 << 28) +# define R128_PM4_192BM (2 << 28) +# define R128_PM4_128PIO_64INDBM (3 << 28) +# define R128_PM4_128BM_64INDBM (4 << 28) +# define R128_PM4_64PIO_128INDBM (5 << 28) +# define R128_PM4_64BM_128INDBM (6 << 28) +# define R128_PM4_64PIO_64VCBM_64INDBM (7 << 28) +# define R128_PM4_64BM_64VCBM_64INDBM (8U << 28) +# define R128_PM4_64PIO_64VCPIO_64INDPIO (15U << 28) +# define R128_PM4_BUFFER_CNTL_NOUPDATE (1 << 27) + +#define R128_PM4_BUFFER_WM_CNTL 0x0708 +# define R128_WMA_SHIFT 0 +# define R128_WMB_SHIFT 8 +# define R128_WMC_SHIFT 16 +# define R128_WB_WM_SHIFT 24 + +#define R128_PM4_BUFFER_DL_RPTR_ADDR 0x070c +#define R128_PM4_BUFFER_DL_RPTR 0x0710 +#define R128_PM4_BUFFER_DL_WPTR 0x0714 +# define R128_PM4_BUFFER_DL_DONE (1 << 31) + +#define R128_PM4_VC_FPU_SETUP 0x071c + +#define R128_PM4_IW_INDOFF 0x0738 +#define R128_PM4_IW_INDSIZE 0x073c + +#define R128_PM4_STAT 0x07b8 +# define R128_PM4_FIFOCNT_MASK 0x0fff +# define R128_PM4_BUSY (1 << 16) +# define R128_PM4_GUI_ACTIVE (1 << 31) + +#define R128_PM4_MICROCODE_ADDR 0x07d4 +#define R128_PM4_MICROCODE_RADDR 0x07d8 +#define R128_PM4_MICROCODE_DATAH 0x07dc +#define R128_PM4_MICROCODE_DATAL 0x07e0 + +#define R128_PM4_BUFFER_ADDR 0x07f0 +#define R128_PM4_MICRO_CNTL 0x07fc +# define R128_PM4_MICRO_FREERUN (1 << 30) + +#define R128_PM4_FIFO_DATA_EVEN 0x1000 +#define R128_PM4_FIFO_DATA_ODD 0x1004 + +/* CCE command packets + */ +#define R128_CCE_PACKET0 0x00000000 +#define R128_CCE_PACKET1 0x40000000 +#define R128_CCE_PACKET2 0x80000000 +#define R128_CCE_PACKET3 0xC0000000 +# define R128_CNTL_HOSTDATA_BLT 0x00009400 +# define R128_CNTL_PAINT_MULTI 0x00009A00 +# define R128_CNTL_BITBLT_MULTI 0x00009B00 +# define R128_3D_RNDR_GEN_INDX_PRIM 0x00002300 + +#define R128_CCE_PACKET_MASK 0xC0000000 +#define R128_CCE_PACKET_COUNT_MASK 0x3fff0000 +#define R128_CCE_PACKET0_REG_MASK 0x000007ff +#define R128_CCE_PACKET1_REG0_MASK 0x000007ff +#define R128_CCE_PACKET1_REG1_MASK 0x003ff800 + +#define R128_CCE_VC_CNTL_PRIM_TYPE_NONE 0x00000000 +#define R128_CCE_VC_CNTL_PRIM_TYPE_POINT 0x00000001 +#define R128_CCE_VC_CNTL_PRIM_TYPE_LINE 0x00000002 +#define R128_CCE_VC_CNTL_PRIM_TYPE_POLY_LINE 0x00000003 +#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST 0x00000004 +#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_FAN 0x00000005 +#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_STRIP 0x00000006 +#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 0x00000007 +#define R128_CCE_VC_CNTL_PRIM_WALK_IND 0x00000010 +#define R128_CCE_VC_CNTL_PRIM_WALK_LIST 0x00000020 +#define R128_CCE_VC_CNTL_PRIM_WALK_RING 0x00000030 +#define R128_CCE_VC_CNTL_NUM_SHIFT 16 + +#define R128_DATATYPE_VQ 0 +#define R128_DATATYPE_CI4 1 +#define R128_DATATYPE_CI8 2 +#define R128_DATATYPE_ARGB1555 3 +#define R128_DATATYPE_RGB565 4 +#define R128_DATATYPE_RGB888 5 +#define R128_DATATYPE_ARGB8888 6 +#define R128_DATATYPE_RGB332 7 +#define R128_DATATYPE_Y8 8 +#define R128_DATATYPE_RGB8 9 +#define R128_DATATYPE_CI16 10 +#define R128_DATATYPE_YVYU422 11 +#define R128_DATATYPE_VYUY422 12 +#define R128_DATATYPE_AYUV444 14 +#define R128_DATATYPE_ARGB4444 15 + +/* Constants */ +#define R128_AGP_OFFSET 0x02000000 + +#define R128_WATERMARK_L 16 +#define R128_WATERMARK_M 8 +#define R128_WATERMARK_N 8 +#define R128_WATERMARK_K 128 + +#define R128_MAX_USEC_TIMEOUT 100000 /* 100 ms */ + +#define R128_LAST_FRAME_REG R128_GUI_SCRATCH_REG0 +#define R128_LAST_DISPATCH_REG R128_GUI_SCRATCH_REG1 +#define R128_MAX_VB_AGE 0x7fffffff +#define R128_MAX_VB_VERTS (0xffff) + +#define R128_RING_HIGH_MARK 128 + +#define R128_PERFORMANCE_BOXES 0 + +#define R128_PCIGART_TABLE_SIZE 32768 + +#define R128_READ(reg) readl(((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define R128_WRITE(reg, val) writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define R128_READ8(reg) readb(((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define R128_WRITE8(reg, val) writeb(val, ((void __iomem *)dev_priv->mmio->handle) + (reg)) + +#define R128_WRITE_PLL(addr, val) \ +do { \ + R128_WRITE8(R128_CLOCK_CNTL_INDEX, \ + ((addr) & 0x1f) | R128_PLL_WR_EN); \ + R128_WRITE(R128_CLOCK_CNTL_DATA, (val)); \ +} while (0) + +#define CCE_PACKET0(reg, n) (R128_CCE_PACKET0 | \ + ((n) << 16) | ((reg) >> 2)) +#define CCE_PACKET1(reg0, reg1) (R128_CCE_PACKET1 | \ + (((reg1) >> 2) << 11) | ((reg0) >> 2)) +#define CCE_PACKET2() (R128_CCE_PACKET2) +#define CCE_PACKET3(pkt, n) (R128_CCE_PACKET3 | \ + (pkt) | ((n) << 16)) + +static __inline__ void r128_update_ring_snapshot(drm_r128_private_t *dev_priv) +{ + drm_r128_ring_buffer_t *ring = &dev_priv->ring; + ring->space = (GET_RING_HEAD(dev_priv) - ring->tail) * sizeof(u32); + if (ring->space <= 0) + ring->space += ring->size; +} + +/* ================================================================ + * Misc helper macros + */ + +#define DEV_INIT_TEST_WITH_RETURN(_dev_priv) \ +do { \ + if (!_dev_priv) { \ + DRM_ERROR("called with no initialization\n"); \ + return -EINVAL; \ + } \ +} while (0) + +#define RING_SPACE_TEST_WITH_RETURN(dev_priv) \ +do { \ + drm_r128_ring_buffer_t *ring = &dev_priv->ring; int i; \ + if (ring->space < ring->high_mark) { \ + for (i = 0 ; i < dev_priv->usec_timeout ; i++) { \ + r128_update_ring_snapshot(dev_priv); \ + if (ring->space >= ring->high_mark) \ + goto __ring_space_done; \ + udelay(1); \ + } \ + DRM_ERROR("ring space check failed!\n"); \ + return -EBUSY; \ + } \ + __ring_space_done: \ + ; \ +} while (0) + +#define VB_AGE_TEST_WITH_RETURN(dev_priv) \ +do { \ + drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; \ + if (sarea_priv->last_dispatch >= R128_MAX_VB_AGE) { \ + int __ret = r128_do_cce_idle(dev_priv); \ + if (__ret) \ + return __ret; \ + sarea_priv->last_dispatch = 0; \ + r128_freelist_reset(dev); \ + } \ +} while (0) + +#define R128_WAIT_UNTIL_PAGE_FLIPPED() do { \ + OUT_RING(CCE_PACKET0(R128_WAIT_UNTIL, 0)); \ + OUT_RING(R128_EVENT_CRTC_OFFSET); \ +} while (0) + +/* ================================================================ + * Ring control + */ + +#define R128_VERBOSE 0 + +#define RING_LOCALS \ + int write, _nr; unsigned int tail_mask; volatile u32 *ring; + +#define BEGIN_RING(n) do { \ + if (R128_VERBOSE) \ + DRM_INFO("BEGIN_RING(%d)\n", (n)); \ + if (dev_priv->ring.space <= (n) * sizeof(u32)) { \ + COMMIT_RING(); \ + r128_wait_ring(dev_priv, (n) * sizeof(u32)); \ + } \ + _nr = n; dev_priv->ring.space -= (n) * sizeof(u32); \ + ring = dev_priv->ring.start; \ + write = dev_priv->ring.tail; \ + tail_mask = dev_priv->ring.tail_mask; \ +} while (0) + +/* You can set this to zero if you want. If the card locks up, you'll + * need to keep this set. It works around a bug in early revs of the + * Rage 128 chipset, where the CCE would read 32 dwords past the end of + * the ring buffer before wrapping around. + */ +#define R128_BROKEN_CCE 1 + +#define ADVANCE_RING() do { \ + if (R128_VERBOSE) \ + DRM_INFO("ADVANCE_RING() wr=0x%06x tail=0x%06x\n", \ + write, dev_priv->ring.tail); \ + if (R128_BROKEN_CCE && write < 32) \ + memcpy(dev_priv->ring.end, \ + dev_priv->ring.start, \ + write * sizeof(u32)); \ + if (((dev_priv->ring.tail + _nr) & tail_mask) != write) \ + DRM_ERROR( \ + "ADVANCE_RING(): mismatch: nr: %x write: %x line: %d\n", \ + ((dev_priv->ring.tail + _nr) & tail_mask), \ + write, __LINE__); \ + else \ + dev_priv->ring.tail = write; \ +} while (0) + +#define COMMIT_RING() do { \ + if (R128_VERBOSE) \ + DRM_INFO("COMMIT_RING() tail=0x%06x\n", \ + dev_priv->ring.tail); \ + mb(); \ + R128_WRITE(R128_PM4_BUFFER_DL_WPTR, dev_priv->ring.tail); \ + R128_READ(R128_PM4_BUFFER_DL_WPTR); \ +} while (0) + +#define OUT_RING(x) do { \ + if (R128_VERBOSE) \ + DRM_INFO(" OUT_RING( 0x%08x ) at 0x%x\n", \ + (unsigned int)(x), write); \ + ring[write++] = cpu_to_le32(x); \ + write &= tail_mask; \ +} while (0) + +#endif /* __R128_DRV_H__ */ |