--- /dev/null
+/* radeon_cp.c -- CP support for Radeon -*- linux-c -*- */
+/*
+ * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
+ * Copyright 2007 Advanced Micro Devices, Inc.
+ * 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:
+ * Kevin E. Martin <martin@valinux.com>
+ * Gareth Hughes <gareth@valinux.com>
+ *
+ * ------------------------ This file is DEPRECATED! -------------------------
+ */
+
+#include <linux/module.h>
+
+#include <drm/drmP.h>
+#include <drm/radeon_drm.h>
+#include "radeon_drv.h"
+#include "r300_reg.h"
+
+#define RADEON_FIFO_DEBUG 0
+
+/* Firmware Names */
+#define FIRMWARE_R100 "radeon/R100_cp.bin"
+#define FIRMWARE_R200 "radeon/R200_cp.bin"
+#define FIRMWARE_R300 "radeon/R300_cp.bin"
+#define FIRMWARE_R420 "radeon/R420_cp.bin"
+#define FIRMWARE_RS690 "radeon/RS690_cp.bin"
+#define FIRMWARE_RS600 "radeon/RS600_cp.bin"
+#define FIRMWARE_R520 "radeon/R520_cp.bin"
+
+MODULE_FIRMWARE(FIRMWARE_R100);
+MODULE_FIRMWARE(FIRMWARE_R200);
+MODULE_FIRMWARE(FIRMWARE_R300);
+MODULE_FIRMWARE(FIRMWARE_R420);
+MODULE_FIRMWARE(FIRMWARE_RS690);
+MODULE_FIRMWARE(FIRMWARE_RS600);
+MODULE_FIRMWARE(FIRMWARE_R520);
+
+static int radeon_do_cleanup_cp(struct drm_device * dev);
+static void radeon_do_cp_start(drm_radeon_private_t * dev_priv);
+
+u32 radeon_read_ring_rptr(drm_radeon_private_t *dev_priv, u32 off)
+{
+ u32 val;
+
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ val = DRM_READ32(dev_priv->ring_rptr, off);
+ } else {
+ val = *(((volatile u32 *)
+ dev_priv->ring_rptr->handle) +
+ (off / sizeof(u32)));
+ val = le32_to_cpu(val);
+ }
+ return val;
+}
+
+u32 radeon_get_ring_head(drm_radeon_private_t *dev_priv)
+{
+ if (dev_priv->writeback_works)
+ return radeon_read_ring_rptr(dev_priv, 0);
+ else {
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return RADEON_READ(R600_CP_RB_RPTR);
+ else
+ return RADEON_READ(RADEON_CP_RB_RPTR);
+ }
+}
+
+void radeon_write_ring_rptr(drm_radeon_private_t *dev_priv, u32 off, u32 val)
+{
+ if (dev_priv->flags & RADEON_IS_AGP)
+ DRM_WRITE32(dev_priv->ring_rptr, off, val);
+ else
+ *(((volatile u32 *) dev_priv->ring_rptr->handle) +
+ (off / sizeof(u32))) = cpu_to_le32(val);
+}
+
+void radeon_set_ring_head(drm_radeon_private_t *dev_priv, u32 val)
+{
+ radeon_write_ring_rptr(dev_priv, 0, val);
+}
+
+u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index)
+{
+ if (dev_priv->writeback_works) {
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return radeon_read_ring_rptr(dev_priv,
+ R600_SCRATCHOFF(index));
+ else
+ return radeon_read_ring_rptr(dev_priv,
+ RADEON_SCRATCHOFF(index));
+ } else {
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return RADEON_READ(R600_SCRATCH_REG0 + 4*index);
+ else
+ return RADEON_READ(RADEON_SCRATCH_REG0 + 4*index);
+ }
+}
+
+static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ u32 ret;
+ RADEON_WRITE(R520_MC_IND_INDEX, 0x7f0000 | (addr & 0xff));
+ ret = RADEON_READ(R520_MC_IND_DATA);
+ RADEON_WRITE(R520_MC_IND_INDEX, 0);
+ return ret;
+}
+
+static u32 RS480_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ u32 ret;
+ RADEON_WRITE(RS480_NB_MC_INDEX, addr & 0xff);
+ ret = RADEON_READ(RS480_NB_MC_DATA);
+ RADEON_WRITE(RS480_NB_MC_INDEX, 0xff);
+ return ret;
+}
+
+static u32 RS690_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ u32 ret;
+ RADEON_WRITE(RS690_MC_INDEX, (addr & RS690_MC_INDEX_MASK));
+ ret = RADEON_READ(RS690_MC_DATA);
+ RADEON_WRITE(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
+ return ret;
+}
+
+static u32 RS600_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ u32 ret;
+ RADEON_WRITE(RS600_MC_INDEX, ((addr & RS600_MC_ADDR_MASK) |
+ RS600_MC_IND_CITF_ARB0));
+ ret = RADEON_READ(RS600_MC_DATA);
+ return ret;
+}
+
+static u32 IGP_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
+ return RS690_READ_MCIND(dev_priv, addr);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ return RS600_READ_MCIND(dev_priv, addr);
+ else
+ return RS480_READ_MCIND(dev_priv, addr);
+}
+
+u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv)
+{
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
+ return RADEON_READ(R700_MC_VM_FB_LOCATION);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return RADEON_READ(R600_MC_VM_FB_LOCATION);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
+ return R500_READ_MCIND(dev_priv, RV515_MC_FB_LOCATION);
+ else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
+ return RS690_READ_MCIND(dev_priv, RS690_MC_FB_LOCATION);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ return RS600_READ_MCIND(dev_priv, RS600_MC_FB_LOCATION);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
+ return R500_READ_MCIND(dev_priv, R520_MC_FB_LOCATION);
+ else
+ return RADEON_READ(RADEON_MC_FB_LOCATION);
+}
+
+static void radeon_write_fb_location(drm_radeon_private_t *dev_priv, u32 fb_loc)
+{
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
+ RADEON_WRITE(R700_MC_VM_FB_LOCATION, fb_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ RADEON_WRITE(R600_MC_VM_FB_LOCATION, fb_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
+ R500_WRITE_MCIND(RV515_MC_FB_LOCATION, fb_loc);
+ else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
+ RS690_WRITE_MCIND(RS690_MC_FB_LOCATION, fb_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ RS600_WRITE_MCIND(RS600_MC_FB_LOCATION, fb_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
+ R500_WRITE_MCIND(R520_MC_FB_LOCATION, fb_loc);
+ else
+ RADEON_WRITE(RADEON_MC_FB_LOCATION, fb_loc);
+}
+
+void radeon_write_agp_location(drm_radeon_private_t *dev_priv, u32 agp_loc)
+{
+ /*R6xx/R7xx: AGP_TOP and BOT are actually 18 bits each */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770) {
+ RADEON_WRITE(R700_MC_VM_AGP_BOT, agp_loc & 0xffff); /* FIX ME */
+ RADEON_WRITE(R700_MC_VM_AGP_TOP, (agp_loc >> 16) & 0xffff);
+ } else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
+ RADEON_WRITE(R600_MC_VM_AGP_BOT, agp_loc & 0xffff); /* FIX ME */
+ RADEON_WRITE(R600_MC_VM_AGP_TOP, (agp_loc >> 16) & 0xffff);
+ } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
+ R500_WRITE_MCIND(RV515_MC_AGP_LOCATION, agp_loc);
+ else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
+ RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, agp_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ RS600_WRITE_MCIND(RS600_MC_AGP_LOCATION, agp_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
+ R500_WRITE_MCIND(R520_MC_AGP_LOCATION, agp_loc);
+ else
+ RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_loc);
+}
+
+void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
+{
+ u32 agp_base_hi = upper_32_bits(agp_base);
+ u32 agp_base_lo = agp_base & 0xffffffff;
+ u32 r6xx_agp_base = (agp_base >> 22) & 0x3ffff;
+
+ /* R6xx/R7xx must be aligned to a 4MB boundary */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
+ RADEON_WRITE(R700_MC_VM_AGP_BASE, r6xx_agp_base);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ RADEON_WRITE(R600_MC_VM_AGP_BASE, r6xx_agp_base);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) {
+ R500_WRITE_MCIND(RV515_MC_AGP_BASE, agp_base_lo);
+ R500_WRITE_MCIND(RV515_MC_AGP_BASE_2, agp_base_hi);
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
+ RS690_WRITE_MCIND(RS690_MC_AGP_BASE, agp_base_lo);
+ RS690_WRITE_MCIND(RS690_MC_AGP_BASE_2, agp_base_hi);
+ } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
+ RS600_WRITE_MCIND(RS600_AGP_BASE, agp_base_lo);
+ RS600_WRITE_MCIND(RS600_AGP_BASE_2, agp_base_hi);
+ } else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515) {
+ R500_WRITE_MCIND(R520_MC_AGP_BASE, agp_base_lo);
+ R500_WRITE_MCIND(R520_MC_AGP_BASE_2, agp_base_hi);
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
+ RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
+ RADEON_WRITE(RS480_AGP_BASE_2, agp_base_hi);
+ } else {
+ RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
+ RADEON_WRITE(RADEON_AGP_BASE_2, agp_base_hi);
+ }
+}
+
+void radeon_enable_bm(struct drm_radeon_private *dev_priv)
+{
+ u32 tmp;
+ /* Turn on bus mastering */
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
+ /* rs600/rs690/rs740 */
+ tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
+ RADEON_WRITE(RADEON_BUS_CNTL, tmp);
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV350) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
+ /* r1xx, r2xx, r300, r(v)350, r420/r481, rs400/rs480 */
+ tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
+ RADEON_WRITE(RADEON_BUS_CNTL, tmp);
+ } /* PCIE cards appears to not need this */
+}
+
+static int RADEON_READ_PLL(struct drm_device * dev, int addr)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
+ return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
+}
+
+static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
+{
+ RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
+ return RADEON_READ(RADEON_PCIE_DATA);
+}
+
+#if RADEON_FIFO_DEBUG
+static void radeon_status(drm_radeon_private_t * dev_priv)
+{
+ printk("%s:\n", __func__);
+ printk("RBBM_STATUS = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_RBBM_STATUS));
+ printk("CP_RB_RTPR = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_CP_RB_RPTR));
+ printk("CP_RB_WTPR = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_CP_RB_WPTR));
+ printk("AIC_CNTL = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_AIC_CNTL));
+ printk("AIC_STAT = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_AIC_STAT));
+ printk("AIC_PT_BASE = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_AIC_PT_BASE));
+ printk("TLB_ADDR = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_AIC_TLB_ADDR));
+ printk("TLB_DATA = 0x%08x\n",
+ (unsigned int)RADEON_READ(RADEON_AIC_TLB_DATA));
+}
+#endif
+
+/* ================================================================
+ * Engine, FIFO control
+ */
+
+static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv)
+{
+ u32 tmp;
+ int i;
+
+ dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) {
+ tmp = RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT);
+ tmp |= RADEON_RB3D_DC_FLUSH_ALL;
+ RADEON_WRITE(RADEON_RB3D_DSTCACHE_CTLSTAT, tmp);
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ if (!(RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT)
+ & RADEON_RB3D_DC_BUSY)) {
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+ } else {
+ /* don't flush or purge cache here or lockup */
+ return 0;
+ }
+
+#if RADEON_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+ radeon_status(dev_priv);
+#endif
+ return -EBUSY;
+}
+
+static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
+{
+ int i;
+
+ dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ int slots = (RADEON_READ(RADEON_RBBM_STATUS)
+ & RADEON_RBBM_FIFOCNT_MASK);
+ if (slots >= entries)
+ return 0;
+ DRM_UDELAY(1);
+ }
+ DRM_DEBUG("wait for fifo failed status : 0x%08X 0x%08X\n",
+ RADEON_READ(RADEON_RBBM_STATUS),
+ RADEON_READ(R300_VAP_CNTL_STATUS));
+
+#if RADEON_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+ radeon_status(dev_priv);
+#endif
+ return -EBUSY;
+}
+
+static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
+{
+ int i, ret;
+
+ dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
+
+ ret = radeon_do_wait_for_fifo(dev_priv, 64);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ if (!(RADEON_READ(RADEON_RBBM_STATUS)
+ & RADEON_RBBM_ACTIVE)) {
+ radeon_do_pixcache_flush(dev_priv);
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+ DRM_DEBUG("wait idle failed status : 0x%08X 0x%08X\n",
+ RADEON_READ(RADEON_RBBM_STATUS),
+ RADEON_READ(R300_VAP_CNTL_STATUS));
+
+#if RADEON_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+ radeon_status(dev_priv);
+#endif
+ return -EBUSY;
+}
+
+static void radeon_init_pipes(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ uint32_t gb_tile_config, gb_pipe_sel = 0;
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) {
+ uint32_t z_pipe_sel = RADEON_READ(RV530_GB_PIPE_SELECT2);
+ if ((z_pipe_sel & 3) == 3)
+ dev_priv->num_z_pipes = 2;
+ else
+ dev_priv->num_z_pipes = 1;
+ } else
+ dev_priv->num_z_pipes = 1;
+
+ /* RS4xx/RS6xx/R4xx/R5xx */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
+ gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
+ dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
+ /* SE cards have 1 pipe */
+ if ((dev->pdev->device == 0x5e4c) ||
+ (dev->pdev->device == 0x5e4f))
+ dev_priv->num_gb_pipes = 1;
+ } else {
+ /* R3xx */
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300 &&
+ dev->pdev->device != 0x4144) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350 &&
+ dev->pdev->device != 0x4148)) {
+ dev_priv->num_gb_pipes = 2;
+ } else {
+ /* RV3xx/R300 AD/R350 AH */
+ dev_priv->num_gb_pipes = 1;
+ }
+ }
+ DRM_INFO("Num pipes: %d\n", dev_priv->num_gb_pipes);
+
+ gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16 /*| R300_SUBPIXEL_1_16*/);
+
+ switch (dev_priv->num_gb_pipes) {
+ case 2: gb_tile_config |= R300_PIPE_COUNT_R300; break;
+ case 3: gb_tile_config |= R300_PIPE_COUNT_R420_3P; break;
+ case 4: gb_tile_config |= R300_PIPE_COUNT_R420; break;
+ default:
+ case 1: gb_tile_config |= R300_PIPE_COUNT_RV350; break;
+ }
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
+ RADEON_WRITE_PLL(R500_DYN_SCLK_PWMEM_PIPE, (1 | ((gb_pipe_sel >> 8) & 0xf) << 4));
+ RADEON_WRITE(R300_SU_REG_DEST, ((1 << dev_priv->num_gb_pipes) - 1));
+ }
+ RADEON_WRITE(R300_GB_TILE_CONFIG, gb_tile_config);
+ radeon_do_wait_for_idle(dev_priv);
+ RADEON_WRITE(R300_DST_PIPE_CONFIG, RADEON_READ(R300_DST_PIPE_CONFIG) | R300_PIPE_AUTO_CONFIG);
+ RADEON_WRITE(R300_RB2D_DSTCACHE_MODE, (RADEON_READ(R300_RB2D_DSTCACHE_MODE) |
+ R300_DC_AUTOFLUSH_ENABLE |
+ R300_DC_DC_DISABLE_IGNORE_PE));
+
+
+}
+
+/* ================================================================
+ * CP control, initialization
+ */
+
+/* Load the microcode for the CP */
+static int radeon_cp_init_microcode(drm_radeon_private_t *dev_priv)
+{
+ struct platform_device *pdev;
+ const char *fw_name = NULL;
+ int err;
+
+ DRM_DEBUG("\n");
+
+ pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
+ err = IS_ERR(pdev);
+ if (err) {
+ printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
+ return -EINVAL;
+ }
+
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R100) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV100) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV200) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS100) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS200)) {
+ DRM_INFO("Loading R100 Microcode\n");
+ fw_name = FIRMWARE_R100;
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R200) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV250) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV280) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS300)) {
+ DRM_INFO("Loading R200 Microcode\n");
+ fw_name = FIRMWARE_R200;
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV350) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV380) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
+ DRM_INFO("Loading R300 Microcode\n");
+ fw_name = FIRMWARE_R300;
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R423) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV410)) {
+ DRM_INFO("Loading R400 Microcode\n");
+ fw_name = FIRMWARE_R420;
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
+ DRM_INFO("Loading RS690/RS740 Microcode\n");
+ fw_name = FIRMWARE_RS690;
+ } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
+ DRM_INFO("Loading RS600 Microcode\n");
+ fw_name = FIRMWARE_RS600;
+ } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R520) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R580) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV560) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV570)) {
+ DRM_INFO("Loading R500 Microcode\n");
+ fw_name = FIRMWARE_R520;
+ }
+
+ err = request_firmware(&dev_priv->me_fw, fw_name, &pdev->dev);
+ platform_device_unregister(pdev);
+ if (err) {
+ printk(KERN_ERR "radeon_cp: Failed to load firmware \"%s\"\n",
+ fw_name);
+ } else if (dev_priv->me_fw->size % 8) {
+ printk(KERN_ERR
+ "radeon_cp: Bogus length %zu in firmware \"%s\"\n",
+ dev_priv->me_fw->size, fw_name);
+ err = -EINVAL;
+ release_firmware(dev_priv->me_fw);
+ dev_priv->me_fw = NULL;
+ }
+ return err;
+}
+
+static void radeon_cp_load_microcode(drm_radeon_private_t *dev_priv)
+{
+ const __be32 *fw_data;
+ int i, size;
+
+ radeon_do_wait_for_idle(dev_priv);
+
+ if (dev_priv->me_fw) {
+ size = dev_priv->me_fw->size / 4;
+ fw_data = (const __be32 *)&dev_priv->me_fw->data[0];
+ RADEON_WRITE(RADEON_CP_ME_RAM_ADDR, 0);
+ for (i = 0; i < size; i += 2) {
+ RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
+ be32_to_cpup(&fw_data[i]));
+ RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
+ be32_to_cpup(&fw_data[i + 1]));
+ }
+ }
+}
+
+/* Flush any pending commands to the CP. This should only be used just
+ * prior to a wait for idle, as it informs the engine that the command
+ * stream is ending.
+ */
+static void radeon_do_cp_flush(drm_radeon_private_t * dev_priv)
+{
+ DRM_DEBUG("\n");
+#if 0
+ u32 tmp;
+
+ tmp = RADEON_READ(RADEON_CP_RB_WPTR) | (1 << 31);
+ RADEON_WRITE(RADEON_CP_RB_WPTR, tmp);
+#endif
+}
+
+/* Wait for the CP to go idle.
+ */
+int radeon_do_cp_idle(drm_radeon_private_t * dev_priv)
+{
+ RING_LOCALS;
+ DRM_DEBUG("\n");
+
+ BEGIN_RING(6);
+
+ RADEON_PURGE_CACHE();
+ RADEON_PURGE_ZCACHE();
+ RADEON_WAIT_UNTIL_IDLE();
+
+ ADVANCE_RING();
+ COMMIT_RING();
+
+ return radeon_do_wait_for_idle(dev_priv);
+}
+
+/* Start the Command Processor.
+ */
+static void radeon_do_cp_start(drm_radeon_private_t * dev_priv)
+{
+ RING_LOCALS;
+ DRM_DEBUG("\n");
+
+ radeon_do_wait_for_idle(dev_priv);
+
+ RADEON_WRITE(RADEON_CP_CSQ_CNTL, dev_priv->cp_mode);
+
+ dev_priv->cp_running = 1;
+
+ /* on r420, any DMA from CP to system memory while 2D is active
+ * can cause a hang. workaround is to queue a CP RESYNC token
+ */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) {
+ BEGIN_RING(3);
+ OUT_RING(CP_PACKET0(R300_CP_RESYNC_ADDR, 1));
+ OUT_RING(5); /* scratch reg 5 */
+ OUT_RING(0xdeadbeef);
+ ADVANCE_RING();
+ COMMIT_RING();
+ }
+
+ BEGIN_RING(8);
+ /* isync can only be written through cp on r5xx write it here */
+ OUT_RING(CP_PACKET0(RADEON_ISYNC_CNTL, 0));
+ OUT_RING(RADEON_ISYNC_ANY2D_IDLE3D |
+ RADEON_ISYNC_ANY3D_IDLE2D |
+ RADEON_ISYNC_WAIT_IDLEGUI |
+ RADEON_ISYNC_CPSCRATCH_IDLEGUI);
+ RADEON_PURGE_CACHE();
+ RADEON_PURGE_ZCACHE();
+ RADEON_WAIT_UNTIL_IDLE();
+ ADVANCE_RING();
+ COMMIT_RING();
+
+ dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED;
+}
+
+/* Reset the Command Processor. This will not flush any pending
+ * commands, so you must wait for the CP command stream to complete
+ * before calling this routine.
+ */
+static void radeon_do_cp_reset(drm_radeon_private_t * dev_priv)
+{
+ u32 cur_read_ptr;
+ DRM_DEBUG("\n");
+
+ cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
+ RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
+ SET_RING_HEAD(dev_priv, cur_read_ptr);
+ dev_priv->ring.tail = cur_read_ptr;
+}
+
+/* Stop the Command Processor. This will not flush any pending
+ * commands, so you must flush the command stream and wait for the CP
+ * to go idle before calling this routine.
+ */
+static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
+{
+ RING_LOCALS;
+ DRM_DEBUG("\n");
+
+ /* finish the pending CP_RESYNC token */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) {
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(R300_RB3D_DC_FINISH);
+ ADVANCE_RING();
+ COMMIT_RING();
+ radeon_do_wait_for_idle(dev_priv);
+ }
+
+ RADEON_WRITE(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS);
+
+ dev_priv->cp_running = 0;
+}
+
+/* Reset the engine. This will stop the CP if it is running.
+ */
+static int radeon_do_engine_reset(struct drm_device * dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ u32 clock_cntl_index = 0, mclk_cntl = 0, rbbm_soft_reset;
+ DRM_DEBUG("\n");
+
+ radeon_do_pixcache_flush(dev_priv);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
+ /* may need something similar for newer chips */
+ clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
+ mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);
+
+ RADEON_WRITE_PLL(RADEON_MCLK_CNTL, (mclk_cntl |
+ RADEON_FORCEON_MCLKA |
+ RADEON_FORCEON_MCLKB |
+ RADEON_FORCEON_YCLKA |
+ RADEON_FORCEON_YCLKB |
+ RADEON_FORCEON_MC |
+ RADEON_FORCEON_AIC));
+ }
+
+ rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
+
+ RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
+ RADEON_SOFT_RESET_CP |
+ RADEON_SOFT_RESET_HI |
+ RADEON_SOFT_RESET_SE |
+ RADEON_SOFT_RESET_RE |
+ RADEON_SOFT_RESET_PP |
+ RADEON_SOFT_RESET_E2 |
+ RADEON_SOFT_RESET_RB));
+ RADEON_READ(RADEON_RBBM_SOFT_RESET);
+ RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
+ ~(RADEON_SOFT_RESET_CP |
+ RADEON_SOFT_RESET_HI |
+ RADEON_SOFT_RESET_SE |
+ RADEON_SOFT_RESET_RE |
+ RADEON_SOFT_RESET_PP |
+ RADEON_SOFT_RESET_E2 |
+ RADEON_SOFT_RESET_RB)));
+ RADEON_READ(RADEON_RBBM_SOFT_RESET);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
+ RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
+ RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
+ RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);
+ }
+
+ /* setup the raster pipes */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R300)
+ radeon_init_pipes(dev);
+
+ /* Reset the CP ring */
+ radeon_do_cp_reset(dev_priv);
+
+ /* The CP is no longer running after an engine reset */
+ dev_priv->cp_running = 0;
+
+ /* Reset any pending vertex, indirect buffers */
+ radeon_freelist_reset(dev);
+
+ return 0;
+}
+
+static void radeon_cp_init_ring_buffer(struct drm_device * dev,
+ drm_radeon_private_t *dev_priv,
+ struct drm_file *file_priv)
+{
+ struct drm_radeon_master_private *master_priv;
+ u32 ring_start, cur_read_ptr;
+
+ /* Initialize the memory controller. With new memory map, the fb location
+ * is not changed, it should have been properly initialized already. Part
+ * of the problem is that the code below is bogus, assuming the GART is
+ * always appended to the fb which is not necessarily the case
+ */
+ if (!dev_priv->new_memmap)
+ radeon_write_fb_location(dev_priv,
+ ((dev_priv->gart_vm_start - 1) & 0xffff0000)
+ | (dev_priv->fb_location >> 16));
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ radeon_write_agp_base(dev_priv, dev->agp->base);
+
+ radeon_write_agp_location(dev_priv,
+ (((dev_priv->gart_vm_start - 1 +
+ dev_priv->gart_size) & 0xffff0000) |
+ (dev_priv->gart_vm_start >> 16)));
+
+ ring_start = (dev_priv->cp_ring->offset
+ - dev->agp->base
+ + dev_priv->gart_vm_start);
+ } else
+#endif
+ ring_start = (dev_priv->cp_ring->offset
+ - (unsigned long)dev->sg->virtual
+ + dev_priv->gart_vm_start);
+
+ RADEON_WRITE(RADEON_CP_RB_BASE, ring_start);
+
+ /* Set the write pointer delay */
+ RADEON_WRITE(RADEON_CP_RB_WPTR_DELAY, 0);
+
+ /* Initialize the ring buffer's read and write pointers */
+ cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
+ RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
+ SET_RING_HEAD(dev_priv, cur_read_ptr);
+ dev_priv->ring.tail = cur_read_ptr;
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
+ dev_priv->ring_rptr->offset
+ - dev->agp->base + dev_priv->gart_vm_start);
+ } else
+#endif
+ {
+ RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
+ dev_priv->ring_rptr->offset
+ - ((unsigned long) dev->sg->virtual)
+ + dev_priv->gart_vm_start);
+ }
+
+ /* Set ring buffer size */
+#ifdef __BIG_ENDIAN
+ RADEON_WRITE(RADEON_CP_RB_CNTL,
+ RADEON_BUF_SWAP_32BIT |
+ (dev_priv->ring.fetch_size_l2ow << 18) |
+ (dev_priv->ring.rptr_update_l2qw << 8) |
+ dev_priv->ring.size_l2qw);
+#else
+ RADEON_WRITE(RADEON_CP_RB_CNTL,
+ (dev_priv->ring.fetch_size_l2ow << 18) |
+ (dev_priv->ring.rptr_update_l2qw << 8) |
+ dev_priv->ring.size_l2qw);
+#endif
+
+
+ /* Initialize the scratch register pointer. This will cause
+ * the scratch register values to be written out to memory
+ * whenever they are updated.
+ *
+ * We simply put this behind the ring read pointer, this works
+ * with PCI GART as well as (whatever kind of) AGP GART
+ */
+ RADEON_WRITE(RADEON_SCRATCH_ADDR, RADEON_READ(RADEON_CP_RB_RPTR_ADDR)
+ + RADEON_SCRATCH_REG_OFFSET);
+
+ RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);
+
+ radeon_enable_bm(dev_priv);
+
+ radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(0), 0);
+ RADEON_WRITE(RADEON_LAST_FRAME_REG, 0);
+
+ radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1), 0);
+ RADEON_WRITE(RADEON_LAST_DISPATCH_REG, 0);
+
+ radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(2), 0);
+ RADEON_WRITE(RADEON_LAST_CLEAR_REG, 0);
+
+ /* reset sarea copies of these */
+ master_priv = file_priv->master->driver_priv;
+ if (master_priv->sarea_priv) {
+ master_priv->sarea_priv->last_frame = 0;
+ master_priv->sarea_priv->last_dispatch = 0;
+ master_priv->sarea_priv->last_clear = 0;
+ }
+
+ radeon_do_wait_for_idle(dev_priv);
+
+ /* Sync everything up */
+ RADEON_WRITE(RADEON_ISYNC_CNTL,
+ (RADEON_ISYNC_ANY2D_IDLE3D |
+ RADEON_ISYNC_ANY3D_IDLE2D |
+ RADEON_ISYNC_WAIT_IDLEGUI |
+ RADEON_ISYNC_CPSCRATCH_IDLEGUI));
+
+}
+
+static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
+{
+ u32 tmp;
+
+ /* Start with assuming that writeback doesn't work */
+ dev_priv->writeback_works = 0;
+
+ /* Writeback doesn't seem to work everywhere, test it here and possibly
+ * enable it if it appears to work
+ */
+ radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1), 0);
+
+ RADEON_WRITE(RADEON_SCRATCH_REG1, 0xdeadbeef);
+
+ for (tmp = 0; tmp < dev_priv->usec_timeout; tmp++) {
+ u32 val;
+
+ val = radeon_read_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1));
+ if (val == 0xdeadbeef)
+ break;
+ DRM_UDELAY(1);
+ }
+
+ if (tmp < dev_priv->usec_timeout) {
+ dev_priv->writeback_works = 1;
+ DRM_INFO("writeback test succeeded in %d usecs\n", tmp);
+ } else {
+ dev_priv->writeback_works = 0;
+ DRM_INFO("writeback test failed\n");
+ }
+ if (radeon_no_wb == 1) {
+ dev_priv->writeback_works = 0;
+ DRM_INFO("writeback forced off\n");
+ }
+
+ if (!dev_priv->writeback_works) {
+ /* Disable writeback to avoid unnecessary bus master transfer */
+ RADEON_WRITE(RADEON_CP_RB_CNTL, RADEON_READ(RADEON_CP_RB_CNTL) |
+ RADEON_RB_NO_UPDATE);
+ RADEON_WRITE(RADEON_SCRATCH_UMSK, 0);
+ }
+}
+
+/* Enable or disable IGP GART on the chip */
+static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
+{
+ u32 temp;
+
+ if (on) {
+ DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
+ dev_priv->gart_vm_start,
+ (long)dev_priv->gart_info.bus_addr,
+ dev_priv->gart_size);
+
+ temp = IGP_READ_MCIND(dev_priv, RS480_MC_MISC_CNTL);
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
+ IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, (RS480_GART_INDEX_REG_EN |
+ RS690_BLOCK_GFX_D3_EN));
+ else
+ IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
+
+ IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
+ RS480_VA_SIZE_32MB));
+
+ temp = IGP_READ_MCIND(dev_priv, RS480_GART_FEATURE_ID);
+ IGP_WRITE_MCIND(RS480_GART_FEATURE_ID, (RS480_HANG_EN |
+ RS480_TLB_ENABLE |
+ RS480_GTW_LAC_EN |
+ RS480_1LEVEL_GART));
+
+ temp = dev_priv->gart_info.bus_addr & 0xfffff000;
+ temp |= (upper_32_bits(dev_priv->gart_info.bus_addr) & 0xff) << 4;
+ IGP_WRITE_MCIND(RS480_GART_BASE, temp);
+
+ temp = IGP_READ_MCIND(dev_priv, RS480_AGP_MODE_CNTL);
+ IGP_WRITE_MCIND(RS480_AGP_MODE_CNTL, ((1 << RS480_REQ_TYPE_SNOOP_SHIFT) |
+ RS480_REQ_TYPE_SNOOP_DIS));
+
+ radeon_write_agp_base(dev_priv, dev_priv->gart_vm_start);
+
+ dev_priv->gart_size = 32*1024*1024;
+ temp = (((dev_priv->gart_vm_start - 1 + dev_priv->gart_size) &
+ 0xffff0000) | (dev_priv->gart_vm_start >> 16));
+
+ radeon_write_agp_location(dev_priv, temp);
+
+ temp = IGP_READ_MCIND(dev_priv, RS480_AGP_ADDRESS_SPACE_SIZE);
+ IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
+ RS480_VA_SIZE_32MB));
+
+ do {
+ temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
+ if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
+ break;
+ DRM_UDELAY(1);
+ } while (1);
+
+ IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL,
+ RS480_GART_CACHE_INVALIDATE);
+
+ do {
+ temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
+ if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
+ break;
+ DRM_UDELAY(1);
+ } while (1);
+
+ IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL, 0);
+ } else {
+ IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
+ }
+}
+
+/* Enable or disable IGP GART on the chip */
+static void rs600_set_igpgart(drm_radeon_private_t *dev_priv, int on)
+{
+ u32 temp;
+ int i;
+
+ if (on) {
+ DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
+ dev_priv->gart_vm_start,
+ (long)dev_priv->gart_info.bus_addr,
+ dev_priv->gart_size);
+
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, (RS600_EFFECTIVE_L2_CACHE_SIZE(6) |
+ RS600_EFFECTIVE_L2_QUEUE_SIZE(6)));
+
+ for (i = 0; i < 19; i++)
+ IGP_WRITE_MCIND(RS600_MC_PT0_CLIENT0_CNTL + i,
+ (RS600_ENABLE_TRANSLATION_MODE_OVERRIDE |
+ RS600_SYSTEM_ACCESS_MODE_IN_SYS |
+ RS600_SYSTEM_APERTURE_UNMAPPED_ACCESS_PASSTHROUGH |
+ RS600_EFFECTIVE_L1_CACHE_SIZE(3) |
+ RS600_ENABLE_FRAGMENT_PROCESSING |
+ RS600_EFFECTIVE_L1_QUEUE_SIZE(3)));
+
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_CNTL, (RS600_ENABLE_PAGE_TABLE |
+ RS600_PAGE_TABLE_TYPE_FLAT));
+
+ /* disable all other contexts */
+ for (i = 1; i < 8; i++)
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_CNTL + i, 0);
+
+ /* setup the page table aperture */
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
+ dev_priv->gart_info.bus_addr);
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_START_ADDR,
+ dev_priv->gart_vm_start);
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_END_ADDR,
+ (dev_priv->gart_vm_start + dev_priv->gart_size - 1));
+ IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
+
+ /* setup the system aperture */
+ IGP_WRITE_MCIND(RS600_MC_PT0_SYSTEM_APERTURE_LOW_ADDR,
+ dev_priv->gart_vm_start);
+ IGP_WRITE_MCIND(RS600_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR,
+ (dev_priv->gart_vm_start + dev_priv->gart_size - 1));
+
+ /* enable page tables */
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, (temp | RS600_ENABLE_PT));
+
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_CNTL1);
+ IGP_WRITE_MCIND(RS600_MC_CNTL1, (temp | RS600_ENABLE_PAGE_TABLES));
+
+ /* invalidate the cache */
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
+
+ temp &= ~(RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE);
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
+
+ temp |= RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE;
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
+
+ temp &= ~(RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE);
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
+
+ } else {
+ IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, 0);
+ temp = IGP_READ_MCIND(dev_priv, RS600_MC_CNTL1);
+ temp &= ~RS600_ENABLE_PAGE_TABLES;
+ IGP_WRITE_MCIND(RS600_MC_CNTL1, temp);
+ }
+}
+
+static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
+{
+ u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
+ if (on) {
+
+ DRM_DEBUG("programming pcie %08X %08lX %08X\n",
+ dev_priv->gart_vm_start,
+ (long)dev_priv->gart_info.bus_addr,
+ dev_priv->gart_size);
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO,
+ dev_priv->gart_vm_start);
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_BASE,
+ dev_priv->gart_info.bus_addr);
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_START_LO,
+ dev_priv->gart_vm_start);
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_END_LO,
+ dev_priv->gart_vm_start +
+ dev_priv->gart_size - 1);
+
+ radeon_write_agp_location(dev_priv, 0xffffffc0); /* ?? */
+
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
+ RADEON_PCIE_TX_GART_EN);
+ } else {
+ RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
+ tmp & ~RADEON_PCIE_TX_GART_EN);
+ }
+}
+
+/* Enable or disable PCI GART on the chip */
+static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
+{
+ u32 tmp;
+
+ if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
+ ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740) ||
+ (dev_priv->flags & RADEON_IS_IGPGART)) {
+ radeon_set_igpgart(dev_priv, on);
+ return;
+ }
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
+ rs600_set_igpgart(dev_priv, on);
+ return;
+ }
+
+ if (dev_priv->flags & RADEON_IS_PCIE) {
+ radeon_set_pciegart(dev_priv, on);
+ return;
+ }
+
+ tmp = RADEON_READ(RADEON_AIC_CNTL);
+
+ if (on) {
+ RADEON_WRITE(RADEON_AIC_CNTL,
+ tmp | RADEON_PCIGART_TRANSLATE_EN);
+
+ /* set PCI GART page-table base address
+ */
+ RADEON_WRITE(RADEON_AIC_PT_BASE, dev_priv->gart_info.bus_addr);
+
+ /* set address range for PCI address translate
+ */
+ RADEON_WRITE(RADEON_AIC_LO_ADDR, dev_priv->gart_vm_start);
+ RADEON_WRITE(RADEON_AIC_HI_ADDR, dev_priv->gart_vm_start
+ + dev_priv->gart_size - 1);
+
+ /* Turn off AGP aperture -- is this required for PCI GART?
+ */
+ radeon_write_agp_location(dev_priv, 0xffffffc0);
+ RADEON_WRITE(RADEON_AGP_COMMAND, 0); /* clear AGP_COMMAND */
+ } else {
+ RADEON_WRITE(RADEON_AIC_CNTL,
+ tmp & ~RADEON_PCIGART_TRANSLATE_EN);
+ }
+}
+
+static int radeon_setup_pcigart_surface(drm_radeon_private_t *dev_priv)
+{
+ struct drm_ati_pcigart_info *gart_info = &dev_priv->gart_info;
+ struct radeon_virt_surface *vp;
+ int i;
+
+ for (i = 0; i < RADEON_MAX_SURFACES * 2; i++) {
+ if (!dev_priv->virt_surfaces[i].file_priv ||
+ dev_priv->virt_surfaces[i].file_priv == PCIGART_FILE_PRIV)
+ break;
+ }
+ if (i >= 2 * RADEON_MAX_SURFACES)
+ return -ENOMEM;
+ vp = &dev_priv->virt_surfaces[i];
+
+ for (i = 0; i < RADEON_MAX_SURFACES; i++) {
+ struct radeon_surface *sp = &dev_priv->surfaces[i];
+ if (sp->refcount)
+ continue;
+
+ vp->surface_index = i;
+ vp->lower = gart_info->bus_addr;
+ vp->upper = vp->lower + gart_info->table_size;
+ vp->flags = 0;
+ vp->file_priv = PCIGART_FILE_PRIV;
+
+ sp->refcount = 1;
+ sp->lower = vp->lower;
+ sp->upper = vp->upper;
+ sp->flags = 0;
+
+ RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, sp->flags);
+ RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND + 16 * i, sp->lower);
+ RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND + 16 * i, sp->upper);
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init,
+ struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ struct drm_radeon_master_private *master_priv = file_priv->master->driver_priv;
+
+ DRM_DEBUG("\n");
+
+ /* if we require new memory map but we don't have it fail */
+ if ((dev_priv->flags & RADEON_NEW_MEMMAP) && !dev_priv->new_memmap) {
+ DRM_ERROR("Cannot initialise DRM on this card\nThis card requires a new X.org DDX for 3D\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ if (init->is_pci && (dev_priv->flags & RADEON_IS_AGP)) {
+ DRM_DEBUG("Forcing AGP card to PCI mode\n");
+ dev_priv->flags &= ~RADEON_IS_AGP;
+ } else if (!(dev_priv->flags & (RADEON_IS_AGP | RADEON_IS_PCI | RADEON_IS_PCIE))
+ && !init->is_pci) {
+ DRM_DEBUG("Restoring AGP flag\n");
+ dev_priv->flags |= RADEON_IS_AGP;
+ }
+
+ if ((!(dev_priv->flags & RADEON_IS_AGP)) && !dev->sg) {
+ DRM_ERROR("PCI GART memory not allocated!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->usec_timeout = init->usec_timeout;
+ if (dev_priv->usec_timeout < 1 ||
+ dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
+ DRM_DEBUG("TIMEOUT problem!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ /* Enable vblank on CRTC1 for older X servers
+ */
+ dev_priv->vblank_crtc = DRM_RADEON_VBLANK_CRTC1;
+
+ switch(init->func) {
+ case RADEON_INIT_R200_CP:
+ dev_priv->microcode_version = UCODE_R200;
+ break;
+ case RADEON_INIT_R300_CP:
+ dev_priv->microcode_version = UCODE_R300;
+ break;
+ default:
+ dev_priv->microcode_version = UCODE_R100;
+ }
+
+ dev_priv->do_boxes = 0;
+ dev_priv->cp_mode = init->cp_mode;
+
+ /* We don't support anything other than bus-mastering ring mode,
+ * but the ring can be in either AGP or PCI space for the ring
+ * read pointer.
+ */
+ if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
+ (init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
+ DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ switch (init->fb_bpp) {
+ case 16:
+ dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
+ break;
+ case 32:
+ default:
+ dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
+ break;
+ }
+ dev_priv->front_offset = init->front_offset;
+ dev_priv->front_pitch = init->front_pitch;
+ dev_priv->back_offset = init->back_offset;
+ dev_priv->back_pitch = init->back_pitch;
+
+ switch (init->depth_bpp) {
+ case 16:
+ dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
+ break;
+ case 32:
+ default:
+ dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
+ break;
+ }
+ dev_priv->depth_offset = init->depth_offset;
+ dev_priv->depth_pitch = init->depth_pitch;
+
+ /* Hardware state for depth clears. Remove this if/when we no
+ * longer clear the depth buffer with a 3D rectangle. Hard-code
+ * all values to prevent unwanted 3D state from slipping through
+ * and screwing with the clear operation.
+ */
+ dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
+ (dev_priv->color_fmt << 10) |
+ (dev_priv->microcode_version ==
+ UCODE_R100 ? RADEON_ZBLOCK16 : 0));
+
+ dev_priv->depth_clear.rb3d_zstencilcntl =
+ (dev_priv->depth_fmt |
+ RADEON_Z_TEST_ALWAYS |
+ RADEON_STENCIL_TEST_ALWAYS |
+ RADEON_STENCIL_S_FAIL_REPLACE |
+ RADEON_STENCIL_ZPASS_REPLACE |
+ RADEON_STENCIL_ZFAIL_REPLACE | RADEON_Z_WRITE_ENABLE);
+
+ dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
+ RADEON_BFACE_SOLID |
+ RADEON_FFACE_SOLID |
+ RADEON_FLAT_SHADE_VTX_LAST |
+ RADEON_DIFFUSE_SHADE_FLAT |
+ RADEON_ALPHA_SHADE_FLAT |
+ RADEON_SPECULAR_SHADE_FLAT |
+ RADEON_FOG_SHADE_FLAT |
+ RADEON_VTX_PIX_CENTER_OGL |
+ RADEON_ROUND_MODE_TRUNC |
+ RADEON_ROUND_PREC_8TH_PIX);
+
+
+ dev_priv->ring_offset = init->ring_offset;
+ dev_priv->ring_rptr_offset = init->ring_rptr_offset;
+ dev_priv->buffers_offset = init->buffers_offset;
+ dev_priv->gart_textures_offset = init->gart_textures_offset;
+
+ master_priv->sarea = drm_legacy_getsarea(dev);
+ if (!master_priv->sarea) {
+ DRM_ERROR("could not find sarea!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->cp_ring = drm_legacy_findmap(dev, init->ring_offset);
+ if (!dev_priv->cp_ring) {
+ DRM_ERROR("could not find cp ring region!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+ dev_priv->ring_rptr = drm_legacy_findmap(dev, init->ring_rptr_offset);
+ if (!dev_priv->ring_rptr) {
+ DRM_ERROR("could not find ring read pointer!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+ dev->agp_buffer_token = init->buffers_offset;
+ dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
+ if (!dev->agp_buffer_map) {
+ DRM_ERROR("could not find dma buffer region!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+
+ if (init->gart_textures_offset) {
+ dev_priv->gart_textures =
+ drm_legacy_findmap(dev, init->gart_textures_offset);
+ if (!dev_priv->gart_textures) {
+ DRM_ERROR("could not find GART texture region!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+ }
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ drm_legacy_ioremap_wc(dev_priv->cp_ring, dev);
+ drm_legacy_ioremap_wc(dev_priv->ring_rptr, dev);
+ drm_legacy_ioremap_wc(dev->agp_buffer_map, dev);
+ if (!dev_priv->cp_ring->handle ||
+ !dev_priv->ring_rptr->handle ||
+ !dev->agp_buffer_map->handle) {
+ DRM_ERROR("could not find ioremap agp regions!\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+ } else
+#endif
+ {
+ dev_priv->cp_ring->handle =
+ (void *)(unsigned long)dev_priv->cp_ring->offset;
+ dev_priv->ring_rptr->handle =
+ (void *)(unsigned long)dev_priv->ring_rptr->offset;
+ dev->agp_buffer_map->handle =
+ (void *)(unsigned long)dev->agp_buffer_map->offset;
+
+ DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
+ dev_priv->cp_ring->handle);
+ DRM_DEBUG("dev_priv->ring_rptr->handle %p\n",
+ dev_priv->ring_rptr->handle);
+ DRM_DEBUG("dev->agp_buffer_map->handle %p\n",
+ dev->agp_buffer_map->handle);
+ }
+
+ dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
+ dev_priv->fb_size =
+ ((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
+ - dev_priv->fb_location;
+
+ dev_priv->front_pitch_offset = (((dev_priv->front_pitch / 64) << 22) |
+ ((dev_priv->front_offset
+ + dev_priv->fb_location) >> 10));
+
+ dev_priv->back_pitch_offset = (((dev_priv->back_pitch / 64) << 22) |
+ ((dev_priv->back_offset
+ + dev_priv->fb_location) >> 10));
+
+ dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch / 64) << 22) |
+ ((dev_priv->depth_offset
+ + dev_priv->fb_location) >> 10));
+
+ dev_priv->gart_size = init->gart_size;
+
+ /* New let's set the memory map ... */
+ if (dev_priv->new_memmap) {
+ u32 base = 0;
+
+ DRM_INFO("Setting GART location based on new memory map\n");
+
+ /* If using AGP, try to locate the AGP aperture at the same
+ * location in the card and on the bus, though we have to
+ * align it down.
+ */
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ base = dev->agp->base;
+ /* Check if valid */
+ if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
+ base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
+ DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
+ dev->agp->base);
+ base = 0;
+ }
+ }
+#endif
+ /* If not or if AGP is at 0 (Macs), try to put it elsewhere */
+ if (base == 0) {
+ base = dev_priv->fb_location + dev_priv->fb_size;
+ if (base < dev_priv->fb_location ||
+ ((base + dev_priv->gart_size) & 0xfffffffful) < base)
+ base = dev_priv->fb_location
+ - dev_priv->gart_size;
+ }
+ dev_priv->gart_vm_start = base & 0xffc00000u;
+ if (dev_priv->gart_vm_start != base)
+ DRM_INFO("GART aligned down from 0x%08x to 0x%08x\n",
+ base, dev_priv->gart_vm_start);
+ } else {
+ DRM_INFO("Setting GART location based on old memory map\n");
+ dev_priv->gart_vm_start = dev_priv->fb_location +
+ RADEON_READ(RADEON_CONFIG_APER_SIZE);
+ }
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP)
+ dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
+ - dev->agp->base
+ + dev_priv->gart_vm_start);
+ else
+#endif
+ dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
+ - (unsigned long)dev->sg->virtual
+ + dev_priv->gart_vm_start);
+
+ DRM_DEBUG("dev_priv->gart_size %d\n", dev_priv->gart_size);
+ DRM_DEBUG("dev_priv->gart_vm_start 0x%x\n", dev_priv->gart_vm_start);
+ DRM_DEBUG("dev_priv->gart_buffers_offset 0x%lx\n",
+ dev_priv->gart_buffers_offset);
+
+ dev_priv->ring.start = (u32 *) dev_priv->cp_ring->handle;
+ dev_priv->ring.end = ((u32 *) dev_priv->cp_ring->handle
+ + init->ring_size / sizeof(u32));
+ dev_priv->ring.size = init->ring_size;
+ dev_priv->ring.size_l2qw = order_base_2(init->ring_size / 8);
+
+ dev_priv->ring.rptr_update = /* init->rptr_update */ 4096;
+ dev_priv->ring.rptr_update_l2qw = order_base_2( /* init->rptr_update */ 4096 / 8);
+
+ dev_priv->ring.fetch_size = /* init->fetch_size */ 32;
+ dev_priv->ring.fetch_size_l2ow = order_base_2( /* init->fetch_size */ 32 / 16);
+ dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
+
+ dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ /* Turn off PCI GART */
+ radeon_set_pcigart(dev_priv, 0);
+ } else
+#endif
+ {
+ u32 sctrl;
+ int ret;
+
+ dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
+ /* if we have an offset set from userspace */
+ if (dev_priv->pcigart_offset_set) {
+ dev_priv->gart_info.bus_addr =
+ (resource_size_t)dev_priv->pcigart_offset + dev_priv->fb_location;
+ dev_priv->gart_info.mapping.offset =
+ dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
+ dev_priv->gart_info.mapping.size =
+ dev_priv->gart_info.table_size;
+
+ drm_legacy_ioremap_wc(&dev_priv->gart_info.mapping, dev);
+ dev_priv->gart_info.addr =
+ dev_priv->gart_info.mapping.handle;
+
+ if (dev_priv->flags & RADEON_IS_PCIE)
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
+ else
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
+ dev_priv->gart_info.gart_table_location =
+ DRM_ATI_GART_FB;
+
+ DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
+ dev_priv->gart_info.addr,
+ dev_priv->pcigart_offset);
+ } else {
+ if (dev_priv->flags & RADEON_IS_IGPGART)
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
+ else
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
+ dev_priv->gart_info.gart_table_location =
+ DRM_ATI_GART_MAIN;
+ dev_priv->gart_info.addr = NULL;
+ dev_priv->gart_info.bus_addr = 0;
+ if (dev_priv->flags & RADEON_IS_PCIE) {
+ DRM_ERROR
+ ("Cannot use PCI Express without GART in FB memory\n");
+ radeon_do_cleanup_cp(dev);
+ return -EINVAL;
+ }
+ }
+
+ sctrl = RADEON_READ(RADEON_SURFACE_CNTL);
+ RADEON_WRITE(RADEON_SURFACE_CNTL, 0);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ ret = r600_page_table_init(dev);
+ else
+ ret = drm_ati_pcigart_init(dev, &dev_priv->gart_info);
+ RADEON_WRITE(RADEON_SURFACE_CNTL, sctrl);
+
+ if (!ret) {
+ DRM_ERROR("failed to init PCI GART!\n");
+ radeon_do_cleanup_cp(dev);
+ return -ENOMEM;
+ }
+
+ ret = radeon_setup_pcigart_surface(dev_priv);
+ if (ret) {
+ DRM_ERROR("failed to setup GART surface!\n");
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ r600_page_table_cleanup(dev, &dev_priv->gart_info);
+ else
+ drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info);
+ radeon_do_cleanup_cp(dev);
+ return ret;
+ }
+
+ /* Turn on PCI GART */
+ radeon_set_pcigart(dev_priv, 1);
+ }
+
+ if (!dev_priv->me_fw) {
+ int err = radeon_cp_init_microcode(dev_priv);
+ if (err) {
+ DRM_ERROR("Failed to load firmware!\n");
+ radeon_do_cleanup_cp(dev);
+ return err;
+ }
+ }
+ radeon_cp_load_microcode(dev_priv);
+ radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
+
+ dev_priv->last_buf = 0;
+
+ radeon_do_engine_reset(dev);
+ radeon_test_writeback(dev_priv);
+
+ return 0;
+}
+
+static int radeon_do_cleanup_cp(struct drm_device * dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ /* Make sure interrupts are disabled here because the uninstall ioctl
+ * may not have been called from userspace and after dev_private
+ * is freed, it's too late.
+ */
+ if (dev->irq_enabled)
+ drm_irq_uninstall(dev);
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ if (dev_priv->cp_ring != NULL) {
+ drm_legacy_ioremapfree(dev_priv->cp_ring, dev);
+ dev_priv->cp_ring = NULL;
+ }
+ if (dev_priv->ring_rptr != NULL) {
+ drm_legacy_ioremapfree(dev_priv->ring_rptr, dev);
+ dev_priv->ring_rptr = NULL;
+ }
+ if (dev->agp_buffer_map != NULL) {
+ drm_legacy_ioremapfree(dev->agp_buffer_map, dev);
+ dev->agp_buffer_map = NULL;
+ }
+ } else
+#endif
+ {
+
+ if (dev_priv->gart_info.bus_addr) {
+ /* Turn off PCI GART */
+ radeon_set_pcigart(dev_priv, 0);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
+ r600_page_table_cleanup(dev, &dev_priv->gart_info);
+ else {
+ if (!drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info))
+ DRM_ERROR("failed to cleanup PCI GART!\n");
+ }
+ }
+
+ if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
+ {
+ drm_legacy_ioremapfree(&dev_priv->gart_info.mapping, dev);
+ dev_priv->gart_info.addr = NULL;
+ }
+ }
+ /* only clear to the start of flags */
+ memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
+
+ return 0;
+}
+
+/* This code will reinit the Radeon CP hardware after a resume from disc.
+ * AFAIK, it would be very difficult to pickle the state at suspend time, so
+ * here we make sure that all Radeon hardware initialisation is re-done without
+ * affecting running applications.
+ *
+ * Charl P. Botha <http://cpbotha.net>
+ */
+static int radeon_do_resume_cp(struct drm_device *dev, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ if (!dev_priv) {
+ DRM_ERROR("Called with no initialization\n");
+ return -EINVAL;
+ }
+
+ DRM_DEBUG("Starting radeon_do_resume_cp()\n");
+
+#if __OS_HAS_AGP
+ if (dev_priv->flags & RADEON_IS_AGP) {
+ /* Turn off PCI GART */
+ radeon_set_pcigart(dev_priv, 0);
+ } else
+#endif
+ {
+ /* Turn on PCI GART */
+ radeon_set_pcigart(dev_priv, 1);
+ }
+
+ radeon_cp_load_microcode(dev_priv);
+ radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
+
+ dev_priv->have_z_offset = 0;
+ radeon_do_engine_reset(dev);
+ radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
+
+ DRM_DEBUG("radeon_do_resume_cp() complete\n");
+
+ return 0;
+}
+
+int radeon_cp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ drm_radeon_init_t *init = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (init->func == RADEON_INIT_R300_CP)
+ r300_init_reg_flags(dev);
+
+ switch (init->func) {
+ case RADEON_INIT_CP:
+ case RADEON_INIT_R200_CP:
+ case RADEON_INIT_R300_CP:
+ return radeon_do_init_cp(dev, init, file_priv);
+ case RADEON_INIT_R600_CP:
+ return r600_do_init_cp(dev, init, file_priv);
+ case RADEON_CLEANUP_CP:
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return r600_do_cleanup_cp(dev);
+ else
+ return radeon_do_cleanup_cp(dev);
+ }
+
+ return -EINVAL;
+}
+
+int radeon_cp_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (dev_priv->cp_running) {
+ DRM_DEBUG("while CP running\n");
+ return 0;
+ }
+ if (dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS) {
+ DRM_DEBUG("called with bogus CP mode (%d)\n",
+ dev_priv->cp_mode);
+ return 0;
+ }
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ r600_do_cp_start(dev_priv);
+ else
+ radeon_do_cp_start(dev_priv);
+
+ return 0;
+}
+
+/* Stop the CP. The engine must have been idled before calling this
+ * routine.
+ */
+int radeon_cp_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ drm_radeon_cp_stop_t *stop = data;
+ int ret;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (!dev_priv->cp_running)
+ return 0;
+
+ /* Flush any pending CP commands. This ensures any outstanding
+ * commands are exectuted by the engine before we turn it off.
+ */
+ if (stop->flush) {
+ radeon_do_cp_flush(dev_priv);
+ }
+
+ /* If we fail to make the engine go idle, we return an error
+ * code so that the DRM ioctl wrapper can try again.
+ */
+ if (stop->idle) {
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ ret = r600_do_cp_idle(dev_priv);
+ else
+ ret = radeon_do_cp_idle(dev_priv);
+ if (ret)
+ return ret;
+ }
+
+ /* Finally, we can turn off the CP. If the engine isn't idle,
+ * we will get some dropped triangles as they won't be fully
+ * rendered before the CP is shut down.
+ */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ r600_do_cp_stop(dev_priv);
+ else
+ radeon_do_cp_stop(dev_priv);
+
+ /* Reset the engine */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ r600_do_engine_reset(dev);
+ else
+ radeon_do_engine_reset(dev);
+
+ return 0;
+}
+
+void radeon_do_release(struct drm_device * dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ int i, ret;
+
+ if (dev_priv) {
+ if (dev_priv->cp_running) {
+ /* Stop the cp */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
+ while ((ret = r600_do_cp_idle(dev_priv)) != 0) {
+ DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
+#ifdef __linux__
+ schedule();
+#else
+ tsleep(&ret, PZERO, "rdnrel", 1);
+#endif
+ }
+ } else {
+ while ((ret = radeon_do_cp_idle(dev_priv)) != 0) {
+ DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
+#ifdef __linux__
+ schedule();
+#else
+ tsleep(&ret, PZERO, "rdnrel", 1);
+#endif
+ }
+ }
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
+ r600_do_cp_stop(dev_priv);
+ r600_do_engine_reset(dev);
+ } else {
+ radeon_do_cp_stop(dev_priv);
+ radeon_do_engine_reset(dev);
+ }
+ }
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) < CHIP_R600) {
+ /* Disable *all* interrupts */
+ if (dev_priv->mmio) /* remove this after permanent addmaps */
+ RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
+
+ if (dev_priv->mmio) { /* remove all surfaces */
+ for (i = 0; i < RADEON_MAX_SURFACES; i++) {
+ RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, 0);
+ RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND +
+ 16 * i, 0);
+ RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND +
+ 16 * i, 0);
+ }
+ }
+ }
+
+ /* Free memory heap structures */
+ radeon_mem_takedown(&(dev_priv->gart_heap));
+ radeon_mem_takedown(&(dev_priv->fb_heap));
+
+ /* deallocate kernel resources */
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ r600_do_cleanup_cp(dev);
+ else
+ radeon_do_cleanup_cp(dev);
+ release_firmware(dev_priv->me_fw);
+ dev_priv->me_fw = NULL;
+ release_firmware(dev_priv->pfp_fw);
+ dev_priv->pfp_fw = NULL;
+ }
+}
+
+/* Just reset the CP ring. Called as part of an X Server engine reset.
+ */
+int radeon_cp_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (!dev_priv) {
+ DRM_DEBUG("called before init done\n");
+ return -EINVAL;
+ }
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ r600_do_cp_reset(dev_priv);
+ else
+ radeon_do_cp_reset(dev_priv);
+
+ /* The CP is no longer running after an engine reset */
+ dev_priv->cp_running = 0;
+
+ return 0;
+}
+
+int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return r600_do_cp_idle(dev_priv);
+ else
+ return radeon_do_cp_idle(dev_priv);
+}
+
+/* Added by Charl P. Botha to call radeon_do_resume_cp().
+ */
+int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return r600_do_resume_cp(dev, file_priv);
+ else
+ return radeon_do_resume_cp(dev, file_priv);
+}
+
+int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+ return r600_do_engine_reset(dev);
+ else
+ return radeon_do_engine_reset(dev);
+}
+
+/* ================================================================
+ * Fullscreen mode
+ */
+
+/* KW: Deprecated to say the least:
+ */
+int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ return 0;
+}
+
+/* ================================================================
+ * Freelist management
+ */
+
+/* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
+ * bufs until freelist code is used. Note this hides a problem with
+ * the scratch register * (used to keep track of last buffer
+ * completed) being written to before * the last buffer has actually
+ * completed rendering.
+ *
+ * KW: It's also a good way to find free buffers quickly.
+ *
+ * KW: Ideally this loop wouldn't exist, and freelist_get wouldn't
+ * sleep. However, bugs in older versions of radeon_accel.c mean that
+ * we essentially have to do this, else old clients will break.
+ *
+ * However, it does leave open a potential deadlock where all the
+ * buffers are held by other clients, which can't release them because
+ * they can't get the lock.
+ */
+
+struct drm_buf *radeon_freelist_get(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ drm_radeon_buf_priv_t *buf_priv;
+ struct drm_buf *buf;
+ int i, t;
+ int start;
+
+ if (++dev_priv->last_buf >= dma->buf_count)
+ dev_priv->last_buf = 0;
+
+ start = dev_priv->last_buf;
+
+ for (t = 0; t < dev_priv->usec_timeout; t++) {
+ u32 done_age = GET_SCRATCH(dev_priv, 1);
+ DRM_DEBUG("done_age = %d\n", done_age);
+ for (i = 0; i < dma->buf_count; i++) {
+ buf = dma->buflist[start];
+ buf_priv = buf->dev_private;
+ if (buf->file_priv == NULL || (buf->pending &&
+ buf_priv->age <=
+ done_age)) {
+ dev_priv->stats.requested_bufs++;
+ buf->pending = 0;
+ return buf;
+ }
+ if (++start >= dma->buf_count)
+ start = 0;
+ }
+
+ if (t) {
+ DRM_UDELAY(1);
+ dev_priv->stats.freelist_loops++;
+ }
+ }
+
+ return NULL;
+}
+
+void radeon_freelist_reset(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ int i;
+
+ dev_priv->last_buf = 0;
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
+ buf_priv->age = 0;
+ }
+}
+
+/* ================================================================
+ * CP command submission
+ */
+
+int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n)
+{
+ drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
+ int i;
+ u32 last_head = GET_RING_HEAD(dev_priv);
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ u32 head = GET_RING_HEAD(dev_priv);
+
+ ring->space = (head - ring->tail) * sizeof(u32);
+ if (ring->space <= 0)
+ ring->space += ring->size;
+ if (ring->space > n)
+ return 0;
+
+ dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
+
+ if (head != last_head)
+ i = 0;
+ last_head = head;
+
+ DRM_UDELAY(1);
+ }
+
+ /* FIXME: This return value is ignored in the BEGIN_RING macro! */
+#if RADEON_FIFO_DEBUG
+ radeon_status(dev_priv);
+ DRM_ERROR("failed!\n");
+#endif
+ return -EBUSY;
+}
+
+static int radeon_cp_get_buffers(struct drm_device *dev,
+ struct drm_file *file_priv,
+ struct drm_dma * d)
+{
+ int i;
+ struct drm_buf *buf;
+
+ for (i = d->granted_count; i < d->request_count; i++) {
+ buf = radeon_freelist_get(dev);
+ if (!buf)
+ return -EBUSY; /* NOTE: broken client */
+
+ buf->file_priv = file_priv;
+
+ if (copy_to_user(&d->request_indices[i], &buf->idx,
+ sizeof(buf->idx)))
+ return -EFAULT;
+ if (copy_to_user(&d->request_sizes[i], &buf->total,
+ sizeof(buf->total)))
+ return -EFAULT;
+
+ d->granted_count++;
+ }
+ return 0;
+}
+
+int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int ret = 0;
+ struct drm_dma *d = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* Please don't send us buffers.
+ */
+ if (d->send_count != 0) {
+ DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
+ DRM_CURRENTPID, d->send_count);
+ return -EINVAL;
+ }
+
+ /* We'll send you buffers.
+ */
+ if (d->request_count < 0 || d->request_count > dma->buf_count) {
+ DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
+ DRM_CURRENTPID, d->request_count, dma->buf_count);
+ return -EINVAL;
+ }
+
+ d->granted_count = 0;
+
+ if (d->request_count) {
+ ret = radeon_cp_get_buffers(dev, file_priv, d);
+ }
+
+ return ret;
+}
+
+int radeon_driver_load(struct drm_device *dev, unsigned long flags)
+{
+ drm_radeon_private_t *dev_priv;
+ int ret = 0;
+
+ dev_priv = kzalloc(sizeof(drm_radeon_private_t), GFP_KERNEL);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+
+ dev->dev_private = (void *)dev_priv;
+ dev_priv->flags = flags;
+
+ switch (flags & RADEON_FAMILY_MASK) {
+ case CHIP_R100:
+ case CHIP_RV200:
+ case CHIP_R200:
+ case CHIP_R300:
+ case CHIP_R350:
+ case CHIP_R420:
+ case CHIP_R423:
+ case CHIP_RV410:
+ case CHIP_RV515:
+ case CHIP_R520:
+ case CHIP_RV570:
+ case CHIP_R580:
+ dev_priv->flags |= RADEON_HAS_HIERZ;
+ break;
+ default:
+ /* all other chips have no hierarchical z buffer */
+ break;
+ }
+
+ pci_set_master(dev->pdev);
+
+ if (drm_pci_device_is_agp(dev))
+ dev_priv->flags |= RADEON_IS_AGP;
+ else if (pci_is_pcie(dev->pdev))
+ dev_priv->flags |= RADEON_IS_PCIE;
+ else
+ dev_priv->flags |= RADEON_IS_PCI;
+
+ ret = drm_legacy_addmap(dev, pci_resource_start(dev->pdev, 2),
+ pci_resource_len(dev->pdev, 2), _DRM_REGISTERS,
+ _DRM_READ_ONLY | _DRM_DRIVER, &dev_priv->mmio);
+ if (ret != 0)
+ return ret;
+
+ ret = drm_vblank_init(dev, 2);
+ if (ret) {
+ radeon_driver_unload(dev);
+ return ret;
+ }
+
+ DRM_DEBUG("%s card detected\n",
+ ((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
+ return ret;
+}
+
+int radeon_master_create(struct drm_device *dev, struct drm_master *master)
+{
+ struct drm_radeon_master_private *master_priv;
+ unsigned long sareapage;
+ int ret;
+
+ master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
+ if (!master_priv)
+ return -ENOMEM;
+
+ /* prebuild the SAREA */
+ sareapage = max_t(unsigned long, SAREA_MAX, PAGE_SIZE);
+ ret = drm_legacy_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK,
+ &master_priv->sarea);
+ if (ret) {
+ DRM_ERROR("SAREA setup failed\n");
+ kfree(master_priv);
+ return ret;
+ }
+ master_priv->sarea_priv = master_priv->sarea->handle + sizeof(struct drm_sarea);
+ master_priv->sarea_priv->pfCurrentPage = 0;
+
+ master->driver_priv = master_priv;
+ return 0;
+}
+
+void radeon_master_destroy(struct drm_device *dev, struct drm_master *master)
+{
+ struct drm_radeon_master_private *master_priv = master->driver_priv;
+
+ if (!master_priv)
+ return;
+
+ if (master_priv->sarea_priv &&
+ master_priv->sarea_priv->pfCurrentPage != 0)
+ radeon_cp_dispatch_flip(dev, master);
+
+ master_priv->sarea_priv = NULL;
+ if (master_priv->sarea)
+ drm_legacy_rmmap_locked(dev, master_priv->sarea);
+
+ kfree(master_priv);
+
+ master->driver_priv = NULL;
+}
+
+/* Create mappings for registers and framebuffer so userland doesn't necessarily
+ * have to find them.
+ */
+int radeon_driver_firstopen(struct drm_device *dev)
+{
+ int ret;
+ drm_local_map_t *map;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ dev_priv->gart_info.table_size = RADEON_PCIGART_TABLE_SIZE;
+
+ dev_priv->fb_aper_offset = pci_resource_start(dev->pdev, 0);
+ ret = drm_legacy_addmap(dev, dev_priv->fb_aper_offset,
+ pci_resource_len(dev->pdev, 0),
+ _DRM_FRAME_BUFFER, _DRM_WRITE_COMBINING, &map);
+ if (ret != 0)
+ return ret;
+
+ return 0;
+}
+
+int radeon_driver_unload(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("\n");
+
+ drm_legacy_rmmap(dev, dev_priv->mmio);
+
+ kfree(dev_priv);
+
+ dev->dev_private = NULL;
+ return 0;
+}
+
+void radeon_commit_ring(drm_radeon_private_t *dev_priv)
+{
+ int i;
+ u32 *ring;
+ int tail_aligned;
+
+ /* check if the ring is padded out to 16-dword alignment */
+
+ tail_aligned = dev_priv->ring.tail & (RADEON_RING_ALIGN-1);
+ if (tail_aligned) {
+ int num_p2 = RADEON_RING_ALIGN - tail_aligned;
+
+ ring = dev_priv->ring.start;
+ /* pad with some CP_PACKET2 */
+ for (i = 0; i < num_p2; i++)
+ ring[dev_priv->ring.tail + i] = CP_PACKET2();
+
+ dev_priv->ring.tail += i;
+
+ dev_priv->ring.space -= num_p2 * sizeof(u32);
+ }
+
+ dev_priv->ring.tail &= dev_priv->ring.tail_mask;
+
+ mb();
+ GET_RING_HEAD( dev_priv );
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
+ RADEON_WRITE(R600_CP_RB_WPTR, dev_priv->ring.tail);
+ /* read from PCI bus to ensure correct posting */
+ RADEON_READ(R600_CP_RB_RPTR);
+ } else {
+ RADEON_WRITE(RADEON_CP_RB_WPTR, dev_priv->ring.tail);
+ /* read from PCI bus to ensure correct posting */
+ RADEON_READ(RADEON_CP_RB_RPTR);
+ }
+}
Code Review / kvmfornfv.git / blobdiff