| /* 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 (8 << 28) |
| # define R128_PM4_64PIO_64VCPIO_64INDPIO (15 << 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__ */ |
