--- /dev/null
+/* r300_cmdbuf.c -- Command buffer emission for R300 -*- linux-c -*-
+ *
+ * Copyright (C) The Weather Channel, Inc. 2002.
+ * Copyright (C) 2004 Nicolai Haehnle.
+ * All Rights Reserved.
+ *
+ * The Weather Channel (TM) funded Tungsten Graphics to develop the
+ * initial release of the Radeon 8500 driver under the XFree86 license.
+ * This notice must be preserved.
+ *
+ * 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:
+ * Nicolai Haehnle <prefect_@gmx.net>
+ *
+ * ------------------------ This file is DEPRECATED! -------------------------
+ */
+
+#include <drm/drmP.h>
+#include <drm/radeon_drm.h>
+#include "radeon_drv.h"
+#include "r300_reg.h"
+#include "drm_buffer.h"
+
+#include <asm/unaligned.h>
+
+#define R300_SIMULTANEOUS_CLIPRECTS 4
+
+/* Values for R300_RE_CLIPRECT_CNTL depending on the number of cliprects
+ */
+static const int r300_cliprect_cntl[4] = {
+ 0xAAAA,
+ 0xEEEE,
+ 0xFEFE,
+ 0xFFFE
+};
+
+/**
+ * Emit up to R300_SIMULTANEOUS_CLIPRECTS cliprects from the given command
+ * buffer, starting with index n.
+ */
+static int r300_emit_cliprects(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf, int n)
+{
+ struct drm_clip_rect box;
+ int nr;
+ int i;
+ RING_LOCALS;
+
+ nr = cmdbuf->nbox - n;
+ if (nr > R300_SIMULTANEOUS_CLIPRECTS)
+ nr = R300_SIMULTANEOUS_CLIPRECTS;
+
+ DRM_DEBUG("%i cliprects\n", nr);
+
+ if (nr) {
+ BEGIN_RING(6 + nr * 2);
+ OUT_RING(CP_PACKET0(R300_RE_CLIPRECT_TL_0, nr * 2 - 1));
+
+ for (i = 0; i < nr; ++i) {
+ if (copy_from_user
+ (&box, &cmdbuf->boxes[n + i], sizeof(box))) {
+ DRM_ERROR("copy cliprect faulted\n");
+ return -EFAULT;
+ }
+
+ box.x2--; /* Hardware expects inclusive bottom-right corner */
+ box.y2--;
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
+ box.x1 = (box.x1) &
+ R300_CLIPRECT_MASK;
+ box.y1 = (box.y1) &
+ R300_CLIPRECT_MASK;
+ box.x2 = (box.x2) &
+ R300_CLIPRECT_MASK;
+ box.y2 = (box.y2) &
+ R300_CLIPRECT_MASK;
+ } else {
+ box.x1 = (box.x1 + R300_CLIPRECT_OFFSET) &
+ R300_CLIPRECT_MASK;
+ box.y1 = (box.y1 + R300_CLIPRECT_OFFSET) &
+ R300_CLIPRECT_MASK;
+ box.x2 = (box.x2 + R300_CLIPRECT_OFFSET) &
+ R300_CLIPRECT_MASK;
+ box.y2 = (box.y2 + R300_CLIPRECT_OFFSET) &
+ R300_CLIPRECT_MASK;
+ }
+
+ OUT_RING((box.x1 << R300_CLIPRECT_X_SHIFT) |
+ (box.y1 << R300_CLIPRECT_Y_SHIFT));
+ OUT_RING((box.x2 << R300_CLIPRECT_X_SHIFT) |
+ (box.y2 << R300_CLIPRECT_Y_SHIFT));
+
+ }
+
+ OUT_RING_REG(R300_RE_CLIPRECT_CNTL, r300_cliprect_cntl[nr - 1]);
+
+ /* TODO/SECURITY: Force scissors to a safe value, otherwise the
+ * client might be able to trample over memory.
+ * The impact should be very limited, but I'd rather be safe than
+ * sorry.
+ */
+ OUT_RING(CP_PACKET0(R300_RE_SCISSORS_TL, 1));
+ OUT_RING(0);
+ OUT_RING(R300_SCISSORS_X_MASK | R300_SCISSORS_Y_MASK);
+ ADVANCE_RING();
+ } else {
+ /* Why we allow zero cliprect rendering:
+ * There are some commands in a command buffer that must be submitted
+ * even when there are no cliprects, e.g. DMA buffer discard
+ * or state setting (though state setting could be avoided by
+ * simulating a loss of context).
+ *
+ * Now since the cmdbuf interface is so chaotic right now (and is
+ * bound to remain that way for a bit until things settle down),
+ * it is basically impossible to filter out the commands that are
+ * necessary and those that aren't.
+ *
+ * So I choose the safe way and don't do any filtering at all;
+ * instead, I simply set up the engine so that all rendering
+ * can't produce any fragments.
+ */
+ BEGIN_RING(2);
+ OUT_RING_REG(R300_RE_CLIPRECT_CNTL, 0);
+ ADVANCE_RING();
+ }
+
+ /* flus cache and wait idle clean after cliprect change */
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(R300_RB3D_DC_FLUSH);
+ ADVANCE_RING();
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(RADEON_WAIT_3D_IDLECLEAN);
+ ADVANCE_RING();
+ /* set flush flag */
+ dev_priv->track_flush |= RADEON_FLUSH_EMITED;
+
+ return 0;
+}
+
+static u8 r300_reg_flags[0x10000 >> 2];
+
+void r300_init_reg_flags(struct drm_device *dev)
+{
+ int i;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ memset(r300_reg_flags, 0, 0x10000 >> 2);
+#define ADD_RANGE_MARK(reg, count,mark) \
+ for(i=((reg)>>2);i<((reg)>>2)+(count);i++)\
+ r300_reg_flags[i]|=(mark);
+
+#define MARK_SAFE 1
+#define MARK_CHECK_OFFSET 2
+
+#define ADD_RANGE(reg, count) ADD_RANGE_MARK(reg, count, MARK_SAFE)
+
+ /* these match cmducs() command in r300_driver/r300/r300_cmdbuf.c */
+ ADD_RANGE(R300_SE_VPORT_XSCALE, 6);
+ ADD_RANGE(R300_VAP_CNTL, 1);
+ ADD_RANGE(R300_SE_VTE_CNTL, 2);
+ ADD_RANGE(0x2134, 2);
+ ADD_RANGE(R300_VAP_CNTL_STATUS, 1);
+ ADD_RANGE(R300_VAP_INPUT_CNTL_0, 2);
+ ADD_RANGE(0x21DC, 1);
+ ADD_RANGE(R300_VAP_UNKNOWN_221C, 1);
+ ADD_RANGE(R300_VAP_CLIP_X_0, 4);
+ ADD_RANGE(R300_VAP_PVS_STATE_FLUSH_REG, 1);
+ ADD_RANGE(R300_VAP_UNKNOWN_2288, 1);
+ ADD_RANGE(R300_VAP_OUTPUT_VTX_FMT_0, 2);
+ ADD_RANGE(R300_VAP_PVS_CNTL_1, 3);
+ ADD_RANGE(R300_GB_ENABLE, 1);
+ ADD_RANGE(R300_GB_MSPOS0, 5);
+ ADD_RANGE(R300_TX_INVALTAGS, 1);
+ ADD_RANGE(R300_TX_ENABLE, 1);
+ ADD_RANGE(0x4200, 4);
+ ADD_RANGE(0x4214, 1);
+ ADD_RANGE(R300_RE_POINTSIZE, 1);
+ ADD_RANGE(0x4230, 3);
+ ADD_RANGE(R300_RE_LINE_CNT, 1);
+ ADD_RANGE(R300_RE_UNK4238, 1);
+ ADD_RANGE(0x4260, 3);
+ ADD_RANGE(R300_RE_SHADE, 4);
+ ADD_RANGE(R300_RE_POLYGON_MODE, 5);
+ ADD_RANGE(R300_RE_ZBIAS_CNTL, 1);
+ ADD_RANGE(R300_RE_ZBIAS_T_FACTOR, 4);
+ ADD_RANGE(R300_RE_OCCLUSION_CNTL, 1);
+ ADD_RANGE(R300_RE_CULL_CNTL, 1);
+ ADD_RANGE(0x42C0, 2);
+ ADD_RANGE(R300_RS_CNTL_0, 2);
+
+ ADD_RANGE(R300_SU_REG_DEST, 1);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530)
+ ADD_RANGE(RV530_FG_ZBREG_DEST, 1);
+
+ ADD_RANGE(R300_SC_HYPERZ, 2);
+ ADD_RANGE(0x43E8, 1);
+
+ ADD_RANGE(0x46A4, 5);
+
+ ADD_RANGE(R300_RE_FOG_STATE, 1);
+ ADD_RANGE(R300_FOG_COLOR_R, 3);
+ ADD_RANGE(R300_PP_ALPHA_TEST, 2);
+ ADD_RANGE(0x4BD8, 1);
+ ADD_RANGE(R300_PFS_PARAM_0_X, 64);
+ ADD_RANGE(0x4E00, 1);
+ ADD_RANGE(R300_RB3D_CBLEND, 2);
+ ADD_RANGE(R300_RB3D_COLORMASK, 1);
+ ADD_RANGE(R300_RB3D_BLEND_COLOR, 3);
+ ADD_RANGE_MARK(R300_RB3D_COLOROFFSET0, 1, MARK_CHECK_OFFSET); /* check offset */
+ ADD_RANGE(R300_RB3D_COLORPITCH0, 1);
+ ADD_RANGE(0x4E50, 9);
+ ADD_RANGE(0x4E88, 1);
+ ADD_RANGE(0x4EA0, 2);
+ ADD_RANGE(R300_ZB_CNTL, 3);
+ ADD_RANGE(R300_ZB_FORMAT, 4);
+ ADD_RANGE_MARK(R300_ZB_DEPTHOFFSET, 1, MARK_CHECK_OFFSET); /* check offset */
+ ADD_RANGE(R300_ZB_DEPTHPITCH, 1);
+ ADD_RANGE(R300_ZB_DEPTHCLEARVALUE, 1);
+ ADD_RANGE(R300_ZB_ZMASK_OFFSET, 13);
+ ADD_RANGE(R300_ZB_ZPASS_DATA, 2); /* ZB_ZPASS_DATA, ZB_ZPASS_ADDR */
+
+ ADD_RANGE(R300_TX_FILTER_0, 16);
+ ADD_RANGE(R300_TX_FILTER1_0, 16);
+ ADD_RANGE(R300_TX_SIZE_0, 16);
+ ADD_RANGE(R300_TX_FORMAT_0, 16);
+ ADD_RANGE(R300_TX_PITCH_0, 16);
+ /* Texture offset is dangerous and needs more checking */
+ ADD_RANGE_MARK(R300_TX_OFFSET_0, 16, MARK_CHECK_OFFSET);
+ ADD_RANGE(R300_TX_CHROMA_KEY_0, 16);
+ ADD_RANGE(R300_TX_BORDER_COLOR_0, 16);
+
+ /* Sporadic registers used as primitives are emitted */
+ ADD_RANGE(R300_ZB_ZCACHE_CTLSTAT, 1);
+ ADD_RANGE(R300_RB3D_DSTCACHE_CTLSTAT, 1);
+ ADD_RANGE(R300_VAP_INPUT_ROUTE_0_0, 8);
+ ADD_RANGE(R300_VAP_INPUT_ROUTE_1_0, 8);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
+ ADD_RANGE(R500_VAP_INDEX_OFFSET, 1);
+ ADD_RANGE(R500_US_CONFIG, 2);
+ ADD_RANGE(R500_US_CODE_ADDR, 3);
+ ADD_RANGE(R500_US_FC_CTRL, 1);
+ ADD_RANGE(R500_RS_IP_0, 16);
+ ADD_RANGE(R500_RS_INST_0, 16);
+ ADD_RANGE(R500_RB3D_COLOR_CLEAR_VALUE_AR, 2);
+ ADD_RANGE(R500_RB3D_CONSTANT_COLOR_AR, 2);
+ ADD_RANGE(R500_ZB_FIFO_SIZE, 2);
+ } else {
+ ADD_RANGE(R300_PFS_CNTL_0, 3);
+ ADD_RANGE(R300_PFS_NODE_0, 4);
+ ADD_RANGE(R300_PFS_TEXI_0, 64);
+ ADD_RANGE(R300_PFS_INSTR0_0, 64);
+ ADD_RANGE(R300_PFS_INSTR1_0, 64);
+ ADD_RANGE(R300_PFS_INSTR2_0, 64);
+ ADD_RANGE(R300_PFS_INSTR3_0, 64);
+ ADD_RANGE(R300_RS_INTERP_0, 8);
+ ADD_RANGE(R300_RS_ROUTE_0, 8);
+
+ }
+}
+
+static __inline__ int r300_check_range(unsigned reg, int count)
+{
+ int i;
+ if (reg & ~0xffff)
+ return -1;
+ for (i = (reg >> 2); i < (reg >> 2) + count; i++)
+ if (r300_reg_flags[i] != MARK_SAFE)
+ return 1;
+ return 0;
+}
+
+static __inline__ int r300_emit_carefully_checked_packet0(drm_radeon_private_t *
+ dev_priv,
+ drm_radeon_kcmd_buffer_t
+ * cmdbuf,
+ drm_r300_cmd_header_t
+ header)
+{
+ int reg;
+ int sz;
+ int i;
+ u32 *value;
+ RING_LOCALS;
+
+ sz = header.packet0.count;
+ reg = (header.packet0.reghi << 8) | header.packet0.reglo;
+
+ if ((sz > 64) || (sz < 0)) {
+ DRM_ERROR("Cannot emit more than 64 values at a time (reg=%04x sz=%d)\n",
+ reg, sz);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < sz; i++) {
+ switch (r300_reg_flags[(reg >> 2) + i]) {
+ case MARK_SAFE:
+ break;
+ case MARK_CHECK_OFFSET:
+ value = drm_buffer_pointer_to_dword(cmdbuf->buffer, i);
+ if (!radeon_check_offset(dev_priv, *value)) {
+ DRM_ERROR("Offset failed range check (reg=%04x sz=%d)\n",
+ reg, sz);
+ return -EINVAL;
+ }
+ break;
+ default:
+ DRM_ERROR("Register %04x failed check as flag=%02x\n",
+ reg + i * 4, r300_reg_flags[(reg >> 2) + i]);
+ return -EINVAL;
+ }
+ }
+
+ BEGIN_RING(1 + sz);
+ OUT_RING(CP_PACKET0(reg, sz - 1));
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, sz);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+/**
+ * Emits a packet0 setting arbitrary registers.
+ * Called by r300_do_cp_cmdbuf.
+ *
+ * Note that checks are performed on contents and addresses of the registers
+ */
+static __inline__ int r300_emit_packet0(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ drm_r300_cmd_header_t header)
+{
+ int reg;
+ int sz;
+ RING_LOCALS;
+
+ sz = header.packet0.count;
+ reg = (header.packet0.reghi << 8) | header.packet0.reglo;
+
+ if (!sz)
+ return 0;
+
+ if (sz * 4 > drm_buffer_unprocessed(cmdbuf->buffer))
+ return -EINVAL;
+
+ if (reg + sz * 4 >= 0x10000) {
+ DRM_ERROR("No such registers in hardware reg=%04x sz=%d\n", reg,
+ sz);
+ return -EINVAL;
+ }
+
+ if (r300_check_range(reg, sz)) {
+ /* go and check everything */
+ return r300_emit_carefully_checked_packet0(dev_priv, cmdbuf,
+ header);
+ }
+ /* the rest of the data is safe to emit, whatever the values the user passed */
+
+ BEGIN_RING(1 + sz);
+ OUT_RING(CP_PACKET0(reg, sz - 1));
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, sz);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+/**
+ * Uploads user-supplied vertex program instructions or parameters onto
+ * the graphics card.
+ * Called by r300_do_cp_cmdbuf.
+ */
+static __inline__ int r300_emit_vpu(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ drm_r300_cmd_header_t header)
+{
+ int sz;
+ int addr;
+ RING_LOCALS;
+
+ sz = header.vpu.count;
+ addr = (header.vpu.adrhi << 8) | header.vpu.adrlo;
+
+ if (!sz)
+ return 0;
+ if (sz * 16 > drm_buffer_unprocessed(cmdbuf->buffer))
+ return -EINVAL;
+
+ /* VAP is very sensitive so we purge cache before we program it
+ * and we also flush its state before & after */
+ BEGIN_RING(6);
+ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(R300_RB3D_DC_FLUSH);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(RADEON_WAIT_3D_IDLECLEAN);
+ OUT_RING(CP_PACKET0(R300_VAP_PVS_STATE_FLUSH_REG, 0));
+ OUT_RING(0);
+ ADVANCE_RING();
+ /* set flush flag */
+ dev_priv->track_flush |= RADEON_FLUSH_EMITED;
+
+ BEGIN_RING(3 + sz * 4);
+ OUT_RING_REG(R300_VAP_PVS_UPLOAD_ADDRESS, addr);
+ OUT_RING(CP_PACKET0_TABLE(R300_VAP_PVS_UPLOAD_DATA, sz * 4 - 1));
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, sz * 4);
+ ADVANCE_RING();
+
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_VAP_PVS_STATE_FLUSH_REG, 0));
+ OUT_RING(0);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+/**
+ * Emit a clear packet from userspace.
+ * Called by r300_emit_packet3.
+ */
+static __inline__ int r300_emit_clear(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf)
+{
+ RING_LOCALS;
+
+ if (8 * 4 > drm_buffer_unprocessed(cmdbuf->buffer))
+ return -EINVAL;
+
+ BEGIN_RING(10);
+ OUT_RING(CP_PACKET3(R200_3D_DRAW_IMMD_2, 8));
+ OUT_RING(R300_PRIM_TYPE_POINT | R300_PRIM_WALK_RING |
+ (1 << R300_PRIM_NUM_VERTICES_SHIFT));
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, 8);
+ ADVANCE_RING();
+
+ BEGIN_RING(4);
+ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(R300_RB3D_DC_FLUSH);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(RADEON_WAIT_3D_IDLECLEAN);
+ ADVANCE_RING();
+ /* set flush flag */
+ dev_priv->track_flush |= RADEON_FLUSH_EMITED;
+
+ return 0;
+}
+
+static __inline__ int r300_emit_3d_load_vbpntr(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ u32 header)
+{
+ int count, i, k;
+#define MAX_ARRAY_PACKET 64
+ u32 *data;
+ u32 narrays;
+ RING_LOCALS;
+
+ count = (header & RADEON_CP_PACKET_COUNT_MASK) >> 16;
+
+ if ((count + 1) > MAX_ARRAY_PACKET) {
+ DRM_ERROR("Too large payload in 3D_LOAD_VBPNTR (count=%d)\n",
+ count);
+ return -EINVAL;
+ }
+ /* carefully check packet contents */
+
+ /* We have already read the header so advance the buffer. */
+ drm_buffer_advance(cmdbuf->buffer, 4);
+
+ narrays = *(u32 *)drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+ k = 0;
+ i = 1;
+ while ((k < narrays) && (i < (count + 1))) {
+ i++; /* skip attribute field */
+ data = drm_buffer_pointer_to_dword(cmdbuf->buffer, i);
+ if (!radeon_check_offset(dev_priv, *data)) {
+ DRM_ERROR
+ ("Offset failed range check (k=%d i=%d) while processing 3D_LOAD_VBPNTR packet.\n",
+ k, i);
+ return -EINVAL;
+ }
+ k++;
+ i++;
+ if (k == narrays)
+ break;
+ /* have one more to process, they come in pairs */
+ data = drm_buffer_pointer_to_dword(cmdbuf->buffer, i);
+ if (!radeon_check_offset(dev_priv, *data)) {
+ DRM_ERROR
+ ("Offset failed range check (k=%d i=%d) while processing 3D_LOAD_VBPNTR packet.\n",
+ k, i);
+ return -EINVAL;
+ }
+ k++;
+ i++;
+ }
+ /* do the counts match what we expect ? */
+ if ((k != narrays) || (i != (count + 1))) {
+ DRM_ERROR
+ ("Malformed 3D_LOAD_VBPNTR packet (k=%d i=%d narrays=%d count+1=%d).\n",
+ k, i, narrays, count + 1);
+ return -EINVAL;
+ }
+
+ /* all clear, output packet */
+
+ BEGIN_RING(count + 2);
+ OUT_RING(header);
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, count + 1);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+static __inline__ int r300_emit_bitblt_multi(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf)
+{
+ u32 *cmd = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+ int count, ret;
+ RING_LOCALS;
+
+
+ count = (*cmd & RADEON_CP_PACKET_COUNT_MASK) >> 16;
+
+ if (*cmd & 0x8000) {
+ u32 offset;
+ u32 *cmd1 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 1);
+ if (*cmd1 & (RADEON_GMC_SRC_PITCH_OFFSET_CNTL
+ | RADEON_GMC_DST_PITCH_OFFSET_CNTL)) {
+
+ u32 *cmd2 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 2);
+ offset = *cmd2 << 10;
+ ret = !radeon_check_offset(dev_priv, offset);
+ if (ret) {
+ DRM_ERROR("Invalid bitblt first offset is %08X\n", offset);
+ return -EINVAL;
+ }
+ }
+
+ if ((*cmd1 & RADEON_GMC_SRC_PITCH_OFFSET_CNTL) &&
+ (*cmd1 & RADEON_GMC_DST_PITCH_OFFSET_CNTL)) {
+ u32 *cmd3 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 3);
+ offset = *cmd3 << 10;
+ ret = !radeon_check_offset(dev_priv, offset);
+ if (ret) {
+ DRM_ERROR("Invalid bitblt second offset is %08X\n", offset);
+ return -EINVAL;
+ }
+
+ }
+ }
+
+ BEGIN_RING(count+2);
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, count + 2);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+static __inline__ int r300_emit_draw_indx_2(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf)
+{
+ u32 *cmd = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+ u32 *cmd1 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 1);
+ int count;
+ int expected_count;
+ RING_LOCALS;
+
+ count = (*cmd & RADEON_CP_PACKET_COUNT_MASK) >> 16;
+
+ expected_count = *cmd1 >> 16;
+ if (!(*cmd1 & R300_VAP_VF_CNTL__INDEX_SIZE_32bit))
+ expected_count = (expected_count+1)/2;
+
+ if (count && count != expected_count) {
+ DRM_ERROR("3D_DRAW_INDX_2: packet size %i, expected %i\n",
+ count, expected_count);
+ return -EINVAL;
+ }
+
+ BEGIN_RING(count+2);
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, count + 2);
+ ADVANCE_RING();
+
+ if (!count) {
+ drm_r300_cmd_header_t stack_header, *header;
+ u32 *cmd1, *cmd2, *cmd3;
+
+ if (drm_buffer_unprocessed(cmdbuf->buffer)
+ < 4*4 + sizeof(stack_header)) {
+ DRM_ERROR("3D_DRAW_INDX_2: expect subsequent INDX_BUFFER, but stream is too short.\n");
+ return -EINVAL;
+ }
+
+ header = drm_buffer_read_object(cmdbuf->buffer,
+ sizeof(stack_header), &stack_header);
+
+ cmd = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+ cmd1 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 1);
+ cmd2 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 2);
+ cmd3 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 3);
+
+ if (header->header.cmd_type != R300_CMD_PACKET3 ||
+ header->packet3.packet != R300_CMD_PACKET3_RAW ||
+ *cmd != CP_PACKET3(RADEON_CP_INDX_BUFFER, 2)) {
+ DRM_ERROR("3D_DRAW_INDX_2: expect subsequent INDX_BUFFER.\n");
+ return -EINVAL;
+ }
+
+ if ((*cmd1 & 0x8000ffff) != 0x80000810) {
+ DRM_ERROR("Invalid indx_buffer reg address %08X\n",
+ *cmd1);
+ return -EINVAL;
+ }
+ if (!radeon_check_offset(dev_priv, *cmd2)) {
+ DRM_ERROR("Invalid indx_buffer offset is %08X\n",
+ *cmd2);
+ return -EINVAL;
+ }
+ if (*cmd3 != expected_count) {
+ DRM_ERROR("INDX_BUFFER: buffer size %i, expected %i\n",
+ *cmd3, expected_count);
+ return -EINVAL;
+ }
+
+ BEGIN_RING(4);
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, 4);
+ ADVANCE_RING();
+ }
+
+ return 0;
+}
+
+static __inline__ int r300_emit_raw_packet3(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf)
+{
+ u32 *header;
+ int count;
+ RING_LOCALS;
+
+ if (4 > drm_buffer_unprocessed(cmdbuf->buffer))
+ return -EINVAL;
+
+ /* Fixme !! This simply emits a packet without much checking.
+ We need to be smarter. */
+
+ /* obtain first word - actual packet3 header */
+ header = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+
+ /* Is it packet 3 ? */
+ if ((*header >> 30) != 0x3) {
+ DRM_ERROR("Not a packet3 header (0x%08x)\n", *header);
+ return -EINVAL;
+ }
+
+ count = (*header >> 16) & 0x3fff;
+
+ /* Check again now that we know how much data to expect */
+ if ((count + 2) * 4 > drm_buffer_unprocessed(cmdbuf->buffer)) {
+ DRM_ERROR
+ ("Expected packet3 of length %d but have only %d bytes left\n",
+ (count + 2) * 4, drm_buffer_unprocessed(cmdbuf->buffer));
+ return -EINVAL;
+ }
+
+ /* Is it a packet type we know about ? */
+ switch (*header & 0xff00) {
+ case RADEON_3D_LOAD_VBPNTR: /* load vertex array pointers */
+ return r300_emit_3d_load_vbpntr(dev_priv, cmdbuf, *header);
+
+ case RADEON_CNTL_BITBLT_MULTI:
+ return r300_emit_bitblt_multi(dev_priv, cmdbuf);
+
+ case RADEON_CP_INDX_BUFFER:
+ DRM_ERROR("packet3 INDX_BUFFER without preceding 3D_DRAW_INDX_2 is illegal.\n");
+ return -EINVAL;
+ case RADEON_CP_3D_DRAW_IMMD_2:
+ /* triggers drawing using in-packet vertex data */
+ case RADEON_CP_3D_DRAW_VBUF_2:
+ /* triggers drawing of vertex buffers setup elsewhere */
+ dev_priv->track_flush &= ~(RADEON_FLUSH_EMITED |
+ RADEON_PURGE_EMITED);
+ break;
+ case RADEON_CP_3D_DRAW_INDX_2:
+ /* triggers drawing using indices to vertex buffer */
+ /* whenever we send vertex we clear flush & purge */
+ dev_priv->track_flush &= ~(RADEON_FLUSH_EMITED |
+ RADEON_PURGE_EMITED);
+ return r300_emit_draw_indx_2(dev_priv, cmdbuf);
+ case RADEON_WAIT_FOR_IDLE:
+ case RADEON_CP_NOP:
+ /* these packets are safe */
+ break;
+ default:
+ DRM_ERROR("Unknown packet3 header (0x%08x)\n", *header);
+ return -EINVAL;
+ }
+
+ BEGIN_RING(count + 2);
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, count + 2);
+ ADVANCE_RING();
+
+ return 0;
+}
+
+/**
+ * Emit a rendering packet3 from userspace.
+ * Called by r300_do_cp_cmdbuf.
+ */
+static __inline__ int r300_emit_packet3(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ drm_r300_cmd_header_t header)
+{
+ int n;
+ int ret;
+ int orig_iter = cmdbuf->buffer->iterator;
+
+ /* This is a do-while-loop so that we run the interior at least once,
+ * even if cmdbuf->nbox is 0. Compare r300_emit_cliprects for rationale.
+ */
+ n = 0;
+ do {
+ if (cmdbuf->nbox > R300_SIMULTANEOUS_CLIPRECTS) {
+ ret = r300_emit_cliprects(dev_priv, cmdbuf, n);
+ if (ret)
+ return ret;
+
+ cmdbuf->buffer->iterator = orig_iter;
+ }
+
+ switch (header.packet3.packet) {
+ case R300_CMD_PACKET3_CLEAR:
+ DRM_DEBUG("R300_CMD_PACKET3_CLEAR\n");
+ ret = r300_emit_clear(dev_priv, cmdbuf);
+ if (ret) {
+ DRM_ERROR("r300_emit_clear failed\n");
+ return ret;
+ }
+ break;
+
+ case R300_CMD_PACKET3_RAW:
+ DRM_DEBUG("R300_CMD_PACKET3_RAW\n");
+ ret = r300_emit_raw_packet3(dev_priv, cmdbuf);
+ if (ret) {
+ DRM_ERROR("r300_emit_raw_packet3 failed\n");
+ return ret;
+ }
+ break;
+
+ default:
+ DRM_ERROR("bad packet3 type %i at byte %d\n",
+ header.packet3.packet,
+ cmdbuf->buffer->iterator - (int)sizeof(header));
+ return -EINVAL;
+ }
+
+ n += R300_SIMULTANEOUS_CLIPRECTS;
+ } while (n < cmdbuf->nbox);
+
+ return 0;
+}
+
+/* Some of the R300 chips seem to be extremely touchy about the two registers
+ * that are configured in r300_pacify.
+ * Among the worst offenders seems to be the R300 ND (0x4E44): When userspace
+ * sends a command buffer that contains only state setting commands and a
+ * vertex program/parameter upload sequence, this will eventually lead to a
+ * lockup, unless the sequence is bracketed by calls to r300_pacify.
+ * So we should take great care to *always* call r300_pacify before
+ * *anything* 3D related, and again afterwards. This is what the
+ * call bracket in r300_do_cp_cmdbuf is for.
+ */
+
+/**
+ * Emit the sequence to pacify R300.
+ */
+static void r300_pacify(drm_radeon_private_t *dev_priv)
+{
+ uint32_t cache_z, cache_3d, cache_2d;
+ RING_LOCALS;
+
+ cache_z = R300_ZC_FLUSH;
+ cache_2d = R300_RB2D_DC_FLUSH;
+ cache_3d = R300_RB3D_DC_FLUSH;
+ if (!(dev_priv->track_flush & RADEON_PURGE_EMITED)) {
+ /* we can purge, primitive where draw since last purge */
+ cache_z |= R300_ZC_FREE;
+ cache_2d |= R300_RB2D_DC_FREE;
+ cache_3d |= R300_RB3D_DC_FREE;
+ }
+
+ /* flush & purge zbuffer */
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_ZB_ZCACHE_CTLSTAT, 0));
+ OUT_RING(cache_z);
+ ADVANCE_RING();
+ /* flush & purge 3d */
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(cache_3d);
+ ADVANCE_RING();
+ /* flush & purge texture */
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_TX_INVALTAGS, 0));
+ OUT_RING(0);
+ ADVANCE_RING();
+ /* FIXME: is this one really needed ? */
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(R300_RB3D_AARESOLVE_CTL, 0));
+ OUT_RING(0);
+ ADVANCE_RING();
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(RADEON_WAIT_3D_IDLECLEAN);
+ ADVANCE_RING();
+ /* flush & purge 2d through E2 as RB2D will trigger lockup */
+ BEGIN_RING(4);
+ OUT_RING(CP_PACKET0(R300_DSTCACHE_CTLSTAT, 0));
+ OUT_RING(cache_2d);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(RADEON_WAIT_2D_IDLECLEAN |
+ RADEON_WAIT_HOST_IDLECLEAN);
+ ADVANCE_RING();
+ /* set flush & purge flags */
+ dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED;
+}
+
+/**
+ * Called by r300_do_cp_cmdbuf to update the internal buffer age and state.
+ * The actual age emit is done by r300_do_cp_cmdbuf, which is why you must
+ * be careful about how this function is called.
+ */
+static void r300_discard_buffer(struct drm_device *dev, struct drm_master *master, struct drm_buf *buf)
+{
+ drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
+ struct drm_radeon_master_private *master_priv = master->driver_priv;
+
+ buf_priv->age = ++master_priv->sarea_priv->last_dispatch;
+ buf->pending = 1;
+ buf->used = 0;
+}
+
+static void r300_cmd_wait(drm_radeon_private_t * dev_priv,
+ drm_r300_cmd_header_t header)
+{
+ u32 wait_until;
+ RING_LOCALS;
+
+ if (!header.wait.flags)
+ return;
+
+ wait_until = 0;
+
+ switch(header.wait.flags) {
+ case R300_WAIT_2D:
+ wait_until = RADEON_WAIT_2D_IDLE;
+ break;
+ case R300_WAIT_3D:
+ wait_until = RADEON_WAIT_3D_IDLE;
+ break;
+ case R300_NEW_WAIT_2D_3D:
+ wait_until = RADEON_WAIT_2D_IDLE|RADEON_WAIT_3D_IDLE;
+ break;
+ case R300_NEW_WAIT_2D_2D_CLEAN:
+ wait_until = RADEON_WAIT_2D_IDLE|RADEON_WAIT_2D_IDLECLEAN;
+ break;
+ case R300_NEW_WAIT_3D_3D_CLEAN:
+ wait_until = RADEON_WAIT_3D_IDLE|RADEON_WAIT_3D_IDLECLEAN;
+ break;
+ case R300_NEW_WAIT_2D_2D_CLEAN_3D_3D_CLEAN:
+ wait_until = RADEON_WAIT_2D_IDLE|RADEON_WAIT_2D_IDLECLEAN;
+ wait_until |= RADEON_WAIT_3D_IDLE|RADEON_WAIT_3D_IDLECLEAN;
+ break;
+ default:
+ return;
+ }
+
+ BEGIN_RING(2);
+ OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0));
+ OUT_RING(wait_until);
+ ADVANCE_RING();
+}
+
+static int r300_scratch(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ drm_r300_cmd_header_t header)
+{
+ u32 *ref_age_base;
+ u32 i, *buf_idx, h_pending;
+ u64 *ptr_addr;
+ u64 stack_ptr_addr;
+ RING_LOCALS;
+
+ if (drm_buffer_unprocessed(cmdbuf->buffer) <
+ (sizeof(u64) + header.scratch.n_bufs * sizeof(*buf_idx))) {
+ return -EINVAL;
+ }
+
+ if (header.scratch.reg >= 5) {
+ return -EINVAL;
+ }
+
+ dev_priv->scratch_ages[header.scratch.reg]++;
+
+ ptr_addr = drm_buffer_read_object(cmdbuf->buffer,
+ sizeof(stack_ptr_addr), &stack_ptr_addr);
+ ref_age_base = (u32 *)(unsigned long)get_unaligned(ptr_addr);
+
+ for (i=0; i < header.scratch.n_bufs; i++) {
+ buf_idx = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);
+ *buf_idx *= 2; /* 8 bytes per buf */
+
+ if (copy_to_user(ref_age_base + *buf_idx,
+ &dev_priv->scratch_ages[header.scratch.reg],
+ sizeof(u32)))
+ return -EINVAL;
+
+ if (copy_from_user(&h_pending,
+ ref_age_base + *buf_idx + 1,
+ sizeof(u32)))
+ return -EINVAL;
+
+ if (h_pending == 0)
+ return -EINVAL;
+
+ h_pending--;
+
+ if (copy_to_user(ref_age_base + *buf_idx + 1,
+ &h_pending,
+ sizeof(u32)))
+ return -EINVAL;
+
+ drm_buffer_advance(cmdbuf->buffer, sizeof(*buf_idx));
+ }
+
+ BEGIN_RING(2);
+ OUT_RING( CP_PACKET0( RADEON_SCRATCH_REG0 + header.scratch.reg * 4, 0 ) );
+ OUT_RING( dev_priv->scratch_ages[header.scratch.reg] );
+ ADVANCE_RING();
+
+ return 0;
+}
+
+/**
+ * Uploads user-supplied vertex program instructions or parameters onto
+ * the graphics card.
+ * Called by r300_do_cp_cmdbuf.
+ */
+static inline int r300_emit_r500fp(drm_radeon_private_t *dev_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf,
+ drm_r300_cmd_header_t header)
+{
+ int sz;
+ int addr;
+ int type;
+ int isclamp;
+ int stride;
+ RING_LOCALS;
+
+ sz = header.r500fp.count;
+ /* address is 9 bits 0 - 8, bit 1 of flags is part of address */
+ addr = ((header.r500fp.adrhi_flags & 1) << 8) | header.r500fp.adrlo;
+
+ type = !!(header.r500fp.adrhi_flags & R500FP_CONSTANT_TYPE);
+ isclamp = !!(header.r500fp.adrhi_flags & R500FP_CONSTANT_CLAMP);
+
+ addr |= (type << 16);
+ addr |= (isclamp << 17);
+
+ stride = type ? 4 : 6;
+
+ DRM_DEBUG("r500fp %d %d type: %d\n", sz, addr, type);
+ if (!sz)
+ return 0;
+ if (sz * stride * 4 > drm_buffer_unprocessed(cmdbuf->buffer))
+ return -EINVAL;
+
+ BEGIN_RING(3 + sz * stride);
+ OUT_RING_REG(R500_GA_US_VECTOR_INDEX, addr);
+ OUT_RING(CP_PACKET0_TABLE(R500_GA_US_VECTOR_DATA, sz * stride - 1));
+ OUT_RING_DRM_BUFFER(cmdbuf->buffer, sz * stride);
+
+ ADVANCE_RING();
+
+ return 0;
+}
+
+
+/**
+ * Parses and validates a user-supplied command buffer and emits appropriate
+ * commands on the DMA ring buffer.
+ * Called by the ioctl handler function radeon_cp_cmdbuf.
+ */
+int r300_do_cp_cmdbuf(struct drm_device *dev,
+ struct drm_file *file_priv,
+ drm_radeon_kcmd_buffer_t *cmdbuf)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ struct drm_radeon_master_private *master_priv = file_priv->master->driver_priv;
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf *buf = NULL;
+ int emit_dispatch_age = 0;
+ int ret = 0;
+
+ DRM_DEBUG("\n");
+
+ /* pacify */
+ r300_pacify(dev_priv);
+
+ if (cmdbuf->nbox <= R300_SIMULTANEOUS_CLIPRECTS) {
+ ret = r300_emit_cliprects(dev_priv, cmdbuf, 0);
+ if (ret)
+ goto cleanup;
+ }
+
+ while (drm_buffer_unprocessed(cmdbuf->buffer)
+ >= sizeof(drm_r300_cmd_header_t)) {
+ int idx;
+ drm_r300_cmd_header_t *header, stack_header;
+
+ header = drm_buffer_read_object(cmdbuf->buffer,
+ sizeof(stack_header), &stack_header);
+
+ switch (header->header.cmd_type) {
+ case R300_CMD_PACKET0:
+ DRM_DEBUG("R300_CMD_PACKET0\n");
+ ret = r300_emit_packet0(dev_priv, cmdbuf, *header);
+ if (ret) {
+ DRM_ERROR("r300_emit_packet0 failed\n");
+ goto cleanup;
+ }
+ break;
+
+ case R300_CMD_VPU:
+ DRM_DEBUG("R300_CMD_VPU\n");
+ ret = r300_emit_vpu(dev_priv, cmdbuf, *header);
+ if (ret) {
+ DRM_ERROR("r300_emit_vpu failed\n");
+ goto cleanup;
+ }
+ break;
+
+ case R300_CMD_PACKET3:
+ DRM_DEBUG("R300_CMD_PACKET3\n");
+ ret = r300_emit_packet3(dev_priv, cmdbuf, *header);
+ if (ret) {
+ DRM_ERROR("r300_emit_packet3 failed\n");
+ goto cleanup;
+ }
+ break;
+
+ case R300_CMD_END3D:
+ DRM_DEBUG("R300_CMD_END3D\n");
+ /* TODO:
+ Ideally userspace driver should not need to issue this call,
+ i.e. the drm driver should issue it automatically and prevent
+ lockups.
+
+ In practice, we do not understand why this call is needed and what
+ it does (except for some vague guesses that it has to do with cache
+ coherence) and so the user space driver does it.
+
+ Once we are sure which uses prevent lockups the code could be moved
+ into the kernel and the userspace driver will not
+ need to use this command.
+
+ Note that issuing this command does not hurt anything
+ except, possibly, performance */
+ r300_pacify(dev_priv);
+ break;
+
+ case R300_CMD_CP_DELAY:
+ /* simple enough, we can do it here */
+ DRM_DEBUG("R300_CMD_CP_DELAY\n");
+ {
+ int i;
+ RING_LOCALS;
+
+ BEGIN_RING(header->delay.count);
+ for (i = 0; i < header->delay.count; i++)
+ OUT_RING(RADEON_CP_PACKET2);
+ ADVANCE_RING();
+ }
+ break;
+
+ case R300_CMD_DMA_DISCARD:
+ DRM_DEBUG("RADEON_CMD_DMA_DISCARD\n");
+ idx = header->dma.buf_idx;
+ if (idx < 0 || idx >= dma->buf_count) {
+ DRM_ERROR("buffer index %d (of %d max)\n",
+ idx, dma->buf_count - 1);
+ ret = -EINVAL;
+ goto cleanup;
+ }
+
+ buf = dma->buflist[idx];
+ if (buf->file_priv != file_priv || buf->pending) {
+ DRM_ERROR("bad buffer %p %p %d\n",
+ buf->file_priv, file_priv,
+ buf->pending);
+ ret = -EINVAL;
+ goto cleanup;
+ }
+
+ emit_dispatch_age = 1;
+ r300_discard_buffer(dev, file_priv->master, buf);
+ break;
+
+ case R300_CMD_WAIT:
+ DRM_DEBUG("R300_CMD_WAIT\n");
+ r300_cmd_wait(dev_priv, *header);
+ break;
+
+ case R300_CMD_SCRATCH:
+ DRM_DEBUG("R300_CMD_SCRATCH\n");
+ ret = r300_scratch(dev_priv, cmdbuf, *header);
+ if (ret) {
+ DRM_ERROR("r300_scratch failed\n");
+ goto cleanup;
+ }
+ break;
+
+ case R300_CMD_R500FP:
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) < CHIP_RV515) {
+ DRM_ERROR("Calling r500 command on r300 card\n");
+ ret = -EINVAL;
+ goto cleanup;
+ }
+ DRM_DEBUG("R300_CMD_R500FP\n");
+ ret = r300_emit_r500fp(dev_priv, cmdbuf, *header);
+ if (ret) {
+ DRM_ERROR("r300_emit_r500fp failed\n");
+ goto cleanup;
+ }
+ break;
+ default:
+ DRM_ERROR("bad cmd_type %i at byte %d\n",
+ header->header.cmd_type,
+ cmdbuf->buffer->iterator - (int)sizeof(*header));
+ ret = -EINVAL;
+ goto cleanup;
+ }
+ }
+
+ DRM_DEBUG("END\n");
+
+ cleanup:
+ r300_pacify(dev_priv);
+
+ /* We emit the vertex buffer age here, outside the pacifier "brackets"
+ * for two reasons:
+ * (1) This may coalesce multiple age emissions into a single one and
+ * (2) more importantly, some chips lock up hard when scratch registers
+ * are written inside the pacifier bracket.
+ */
+ if (emit_dispatch_age) {
+ RING_LOCALS;
+
+ /* Emit the vertex buffer age */
+ BEGIN_RING(2);
+ RADEON_DISPATCH_AGE(master_priv->sarea_priv->last_dispatch);
+ ADVANCE_RING();
+ }
+
+ COMMIT_RING();
+
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff