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path: root/drivers/gpu/drm/radeon/r300.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/r300.c')
-rw-r--r--drivers/gpu/drm/radeon/r300.c1116
1 files changed, 1116 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
new file mode 100644
index 00000000000..f5870a099d4
--- /dev/null
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -0,0 +1,1116 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
+ * Alex Deucher
+ * Jerome Glisse
+ */
+#include <linux/seq_file.h>
+#include "drmP.h"
+#include "drm.h"
+#include "radeon_reg.h"
+#include "radeon.h"
+
+/* r300,r350,rv350,rv370,rv380 depends on : */
+void r100_hdp_reset(struct radeon_device *rdev);
+int r100_cp_reset(struct radeon_device *rdev);
+int r100_rb2d_reset(struct radeon_device *rdev);
+int r100_cp_init(struct radeon_device *rdev, unsigned ring_size);
+int r100_pci_gart_enable(struct radeon_device *rdev);
+void r100_pci_gart_disable(struct radeon_device *rdev);
+void r100_mc_setup(struct radeon_device *rdev);
+void r100_mc_disable_clients(struct radeon_device *rdev);
+int r100_gui_wait_for_idle(struct radeon_device *rdev);
+int r100_cs_packet_parse(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt,
+ unsigned idx);
+int r100_cs_packet_next_reloc(struct radeon_cs_parser *p,
+ struct radeon_cs_reloc **cs_reloc);
+int r100_cs_parse_packet0(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt,
+ unsigned *auth, unsigned n,
+ radeon_packet0_check_t check);
+int r100_cs_parse_packet3(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt,
+ unsigned *auth, unsigned n,
+ radeon_packet3_check_t check);
+void r100_cs_dump_packet(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt);
+
+/* This files gather functions specifics to:
+ * r300,r350,rv350,rv370,rv380
+ *
+ * Some of these functions might be used by newer ASICs.
+ */
+void r300_gpu_init(struct radeon_device *rdev);
+int r300_mc_wait_for_idle(struct radeon_device *rdev);
+int rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
+
+
+/*
+ * rv370,rv380 PCIE GART
+ */
+void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+ int i;
+
+ /* Workaround HW bug do flush 2 times */
+ for (i = 0; i < 2; i++) {
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
+ WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB);
+ (void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
+ WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
+ mb();
+ }
+}
+
+int rv370_pcie_gart_enable(struct radeon_device *rdev)
+{
+ uint32_t table_addr;
+ uint32_t tmp;
+ int r;
+
+ /* Initialize common gart structure */
+ r = radeon_gart_init(rdev);
+ if (r) {
+ return r;
+ }
+ r = rv370_debugfs_pcie_gart_info_init(rdev);
+ if (r) {
+ DRM_ERROR("Failed to register debugfs file for PCIE gart !\n");
+ }
+ rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
+ r = radeon_gart_table_vram_alloc(rdev);
+ if (r) {
+ return r;
+ }
+ /* discard memory request outside of configured range */
+ tmp = RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
+ WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
+ WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, rdev->mc.gtt_location);
+ tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 4096;
+ WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, tmp);
+ WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
+ WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
+ table_addr = rdev->gart.table_addr;
+ WREG32_PCIE(RADEON_PCIE_TX_GART_BASE, table_addr);
+ /* FIXME: setup default page */
+ WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO, rdev->mc.vram_location);
+ WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_HI, 0);
+ /* Clear error */
+ WREG32_PCIE(0x18, 0);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
+ tmp |= RADEON_PCIE_TX_GART_EN;
+ tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
+ WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
+ rv370_pcie_gart_tlb_flush(rdev);
+ DRM_INFO("PCIE GART of %uM enabled (table at 0x%08X).\n",
+ rdev->mc.gtt_size >> 20, table_addr);
+ rdev->gart.ready = true;
+ return 0;
+}
+
+void rv370_pcie_gart_disable(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
+ tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
+ WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp & ~RADEON_PCIE_TX_GART_EN);
+ if (rdev->gart.table.vram.robj) {
+ radeon_object_kunmap(rdev->gart.table.vram.robj);
+ radeon_object_unpin(rdev->gart.table.vram.robj);
+ }
+}
+
+int rv370_pcie_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
+{
+ void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
+
+ if (i < 0 || i > rdev->gart.num_gpu_pages) {
+ return -EINVAL;
+ }
+ addr = (((u32)addr) >> 8) | ((upper_32_bits(addr) & 0xff) << 4) | 0xC;
+ writel(cpu_to_le32(addr), ((void __iomem *)ptr) + (i * 4));
+ return 0;
+}
+
+int r300_gart_enable(struct radeon_device *rdev)
+{
+#if __OS_HAS_AGP
+ if (rdev->flags & RADEON_IS_AGP) {
+ if (rdev->family > CHIP_RV350) {
+ rv370_pcie_gart_disable(rdev);
+ } else {
+ r100_pci_gart_disable(rdev);
+ }
+ return 0;
+ }
+#endif
+ if (rdev->flags & RADEON_IS_PCIE) {
+ rdev->asic->gart_disable = &rv370_pcie_gart_disable;
+ rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
+ rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
+ return rv370_pcie_gart_enable(rdev);
+ }
+ return r100_pci_gart_enable(rdev);
+}
+
+
+/*
+ * MC
+ */
+int r300_mc_init(struct radeon_device *rdev)
+{
+ int r;
+
+ if (r100_debugfs_rbbm_init(rdev)) {
+ DRM_ERROR("Failed to register debugfs file for RBBM !\n");
+ }
+
+ r300_gpu_init(rdev);
+ r100_pci_gart_disable(rdev);
+ if (rdev->flags & RADEON_IS_PCIE) {
+ rv370_pcie_gart_disable(rdev);
+ }
+
+ /* Setup GPU memory space */
+ rdev->mc.vram_location = 0xFFFFFFFFUL;
+ rdev->mc.gtt_location = 0xFFFFFFFFUL;
+ if (rdev->flags & RADEON_IS_AGP) {
+ r = radeon_agp_init(rdev);
+ if (r) {
+ printk(KERN_WARNING "[drm] Disabling AGP\n");
+ rdev->flags &= ~RADEON_IS_AGP;
+ rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+ } else {
+ rdev->mc.gtt_location = rdev->mc.agp_base;
+ }
+ }
+ r = radeon_mc_setup(rdev);
+ if (r) {
+ return r;
+ }
+
+ /* Program GPU memory space */
+ r100_mc_disable_clients(rdev);
+ if (r300_mc_wait_for_idle(rdev)) {
+ printk(KERN_WARNING "Failed to wait MC idle while "
+ "programming pipes. Bad things might happen.\n");
+ }
+ r100_mc_setup(rdev);
+ return 0;
+}
+
+void r300_mc_fini(struct radeon_device *rdev)
+{
+ if (rdev->flags & RADEON_IS_PCIE) {
+ rv370_pcie_gart_disable(rdev);
+ radeon_gart_table_vram_free(rdev);
+ } else {
+ r100_pci_gart_disable(rdev);
+ radeon_gart_table_ram_free(rdev);
+ }
+ radeon_gart_fini(rdev);
+}
+
+
+/*
+ * Fence emission
+ */
+void r300_fence_ring_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ /* Who ever call radeon_fence_emit should call ring_lock and ask
+ * for enough space (today caller are ib schedule and buffer move) */
+ /* Write SC register so SC & US assert idle */
+ radeon_ring_write(rdev, PACKET0(0x43E0, 0));
+ radeon_ring_write(rdev, 0);
+ radeon_ring_write(rdev, PACKET0(0x43E4, 0));
+ radeon_ring_write(rdev, 0);
+ /* Flush 3D cache */
+ radeon_ring_write(rdev, PACKET0(0x4E4C, 0));
+ radeon_ring_write(rdev, (2 << 0));
+ radeon_ring_write(rdev, PACKET0(0x4F18, 0));
+ radeon_ring_write(rdev, (1 << 0));
+ /* Wait until IDLE & CLEAN */
+ radeon_ring_write(rdev, PACKET0(0x1720, 0));
+ radeon_ring_write(rdev, (1 << 17) | (1 << 16) | (1 << 9));
+ /* Emit fence sequence & fire IRQ */
+ radeon_ring_write(rdev, PACKET0(rdev->fence_drv.scratch_reg, 0));
+ radeon_ring_write(rdev, fence->seq);
+ radeon_ring_write(rdev, PACKET0(RADEON_GEN_INT_STATUS, 0));
+ radeon_ring_write(rdev, RADEON_SW_INT_FIRE);
+}
+
+
+/*
+ * Global GPU functions
+ */
+int r300_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset,
+ uint64_t dst_offset,
+ unsigned num_pages,
+ struct radeon_fence *fence)
+{
+ uint32_t size;
+ uint32_t cur_size;
+ int i, num_loops;
+ int r = 0;
+
+ /* radeon pitch is /64 */
+ size = num_pages << PAGE_SHIFT;
+ num_loops = DIV_ROUND_UP(size, 0x1FFFFF);
+ r = radeon_ring_lock(rdev, num_loops * 4 + 64);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+ /* Must wait for 2D idle & clean before DMA or hangs might happen */
+ radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
+ radeon_ring_write(rdev, (1 << 16));
+ for (i = 0; i < num_loops; i++) {
+ cur_size = size;
+ if (cur_size > 0x1FFFFF) {
+ cur_size = 0x1FFFFF;
+ }
+ size -= cur_size;
+ radeon_ring_write(rdev, PACKET0(0x720, 2));
+ radeon_ring_write(rdev, src_offset);
+ radeon_ring_write(rdev, dst_offset);
+ radeon_ring_write(rdev, cur_size | (1 << 31) | (1 << 30));
+ src_offset += cur_size;
+ dst_offset += cur_size;
+ }
+ radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
+ radeon_ring_write(rdev, RADEON_WAIT_DMA_GUI_IDLE);
+ if (fence) {
+ r = radeon_fence_emit(rdev, fence);
+ }
+ radeon_ring_unlock_commit(rdev);
+ return r;
+}
+
+void r300_ring_start(struct radeon_device *rdev)
+{
+ unsigned gb_tile_config;
+ int r;
+
+ /* Sub pixel 1/12 so we can have 4K rendering according to doc */
+ gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
+ switch (rdev->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;
+ case 1:
+ default:
+ gb_tile_config |= R300_PIPE_COUNT_RV350;
+ break;
+ }
+
+ r = radeon_ring_lock(rdev, 64);
+ if (r) {
+ return;
+ }
+ radeon_ring_write(rdev, PACKET0(RADEON_ISYNC_CNTL, 0));
+ radeon_ring_write(rdev,
+ RADEON_ISYNC_ANY2D_IDLE3D |
+ RADEON_ISYNC_ANY3D_IDLE2D |
+ RADEON_ISYNC_WAIT_IDLEGUI |
+ RADEON_ISYNC_CPSCRATCH_IDLEGUI);
+ radeon_ring_write(rdev, PACKET0(R300_GB_TILE_CONFIG, 0));
+ radeon_ring_write(rdev, gb_tile_config);
+ radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
+ radeon_ring_write(rdev,
+ RADEON_WAIT_2D_IDLECLEAN |
+ RADEON_WAIT_3D_IDLECLEAN);
+ radeon_ring_write(rdev, PACKET0(0x170C, 0));
+ radeon_ring_write(rdev, 1 << 31);
+ radeon_ring_write(rdev, PACKET0(R300_GB_SELECT, 0));
+ radeon_ring_write(rdev, 0);
+ radeon_ring_write(rdev, PACKET0(R300_GB_ENABLE, 0));
+ radeon_ring_write(rdev, 0);
+ radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
+ radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
+ radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
+ radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
+ radeon_ring_write(rdev,
+ RADEON_WAIT_2D_IDLECLEAN |
+ RADEON_WAIT_3D_IDLECLEAN);
+ radeon_ring_write(rdev, PACKET0(R300_GB_AA_CONFIG, 0));
+ radeon_ring_write(rdev, 0);
+ radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+ radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
+ radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
+ radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
+ radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS0, 0));
+ radeon_ring_write(rdev,
+ ((6 << R300_MS_X0_SHIFT) |
+ (6 << R300_MS_Y0_SHIFT) |
+ (6 << R300_MS_X1_SHIFT) |
+ (6 << R300_MS_Y1_SHIFT) |
+ (6 << R300_MS_X2_SHIFT) |
+ (6 << R300_MS_Y2_SHIFT) |
+ (6 << R300_MSBD0_Y_SHIFT) |
+ (6 << R300_MSBD0_X_SHIFT)));
+ radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS1, 0));
+ radeon_ring_write(rdev,
+ ((6 << R300_MS_X3_SHIFT) |
+ (6 << R300_MS_Y3_SHIFT) |
+ (6 << R300_MS_X4_SHIFT) |
+ (6 << R300_MS_Y4_SHIFT) |
+ (6 << R300_MS_X5_SHIFT) |
+ (6 << R300_MS_Y5_SHIFT) |
+ (6 << R300_MSBD1_SHIFT)));
+ radeon_ring_write(rdev, PACKET0(R300_GA_ENHANCE, 0));
+ radeon_ring_write(rdev, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
+ radeon_ring_write(rdev, PACKET0(R300_GA_POLY_MODE, 0));
+ radeon_ring_write(rdev,
+ R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
+ radeon_ring_write(rdev, PACKET0(R300_GA_ROUND_MODE, 0));
+ radeon_ring_write(rdev,
+ R300_GEOMETRY_ROUND_NEAREST |
+ R300_COLOR_ROUND_NEAREST);
+ radeon_ring_unlock_commit(rdev);
+}
+
+void r300_errata(struct radeon_device *rdev)
+{
+ rdev->pll_errata = 0;
+
+ if (rdev->family == CHIP_R300 &&
+ (RREG32(RADEON_CONFIG_CNTL) & RADEON_CFG_ATI_REV_ID_MASK) == RADEON_CFG_ATI_REV_A11) {
+ rdev->pll_errata |= CHIP_ERRATA_R300_CG;
+ }
+}
+
+int r300_mc_wait_for_idle(struct radeon_device *rdev)
+{
+ unsigned i;
+ uint32_t tmp;
+
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ /* read MC_STATUS */
+ tmp = RREG32(0x0150);
+ if (tmp & (1 << 4)) {
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+ return -1;
+}
+
+void r300_gpu_init(struct radeon_device *rdev)
+{
+ uint32_t gb_tile_config, tmp;
+
+ r100_hdp_reset(rdev);
+ /* FIXME: rv380 one pipes ? */
+ if ((rdev->family == CHIP_R300) || (rdev->family == CHIP_R350)) {
+ /* r300,r350 */
+ rdev->num_gb_pipes = 2;
+ } else {
+ /* rv350,rv370,rv380 */
+ rdev->num_gb_pipes = 1;
+ }
+ gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
+ switch (rdev->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;
+ case 1:
+ default:
+ gb_tile_config |= R300_PIPE_COUNT_RV350;
+ break;
+ }
+ WREG32(R300_GB_TILE_CONFIG, gb_tile_config);
+
+ if (r100_gui_wait_for_idle(rdev)) {
+ printk(KERN_WARNING "Failed to wait GUI idle while "
+ "programming pipes. Bad things might happen.\n");
+ }
+
+ tmp = RREG32(0x170C);
+ WREG32(0x170C, tmp | (1 << 31));
+
+ WREG32(R300_RB2D_DSTCACHE_MODE,
+ R300_DC_AUTOFLUSH_ENABLE |
+ R300_DC_DC_DISABLE_IGNORE_PE);
+
+ if (r100_gui_wait_for_idle(rdev)) {
+ printk(KERN_WARNING "Failed to wait GUI idle while "
+ "programming pipes. Bad things might happen.\n");
+ }
+ if (r300_mc_wait_for_idle(rdev)) {
+ printk(KERN_WARNING "Failed to wait MC idle while "
+ "programming pipes. Bad things might happen.\n");
+ }
+ DRM_INFO("radeon: %d pipes initialized.\n", rdev->num_gb_pipes);
+}
+
+int r300_ga_reset(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+ bool reinit_cp;
+ int i;
+
+ reinit_cp = rdev->cp.ready;
+ rdev->cp.ready = false;
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ WREG32(RADEON_CP_CSQ_MODE, 0);
+ WREG32(RADEON_CP_CSQ_CNTL, 0);
+ WREG32(RADEON_RBBM_SOFT_RESET, 0x32005);
+ (void)RREG32(RADEON_RBBM_SOFT_RESET);
+ udelay(200);
+ WREG32(RADEON_RBBM_SOFT_RESET, 0);
+ /* Wait to prevent race in RBBM_STATUS */
+ mdelay(1);
+ tmp = RREG32(RADEON_RBBM_STATUS);
+ if (tmp & ((1 << 20) | (1 << 26))) {
+ DRM_ERROR("VAP & CP still busy (RBBM_STATUS=0x%08X)", tmp);
+ /* GA still busy soft reset it */
+ WREG32(0x429C, 0x200);
+ WREG32(R300_VAP_PVS_STATE_FLUSH_REG, 0);
+ WREG32(0x43E0, 0);
+ WREG32(0x43E4, 0);
+ WREG32(0x24AC, 0);
+ }
+ /* Wait to prevent race in RBBM_STATUS */
+ mdelay(1);
+ tmp = RREG32(RADEON_RBBM_STATUS);
+ if (!(tmp & ((1 << 20) | (1 << 26)))) {
+ break;
+ }
+ }
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = RREG32(RADEON_RBBM_STATUS);
+ if (!(tmp & ((1 << 20) | (1 << 26)))) {
+ DRM_INFO("GA reset succeed (RBBM_STATUS=0x%08X)\n",
+ tmp);
+ if (reinit_cp) {
+ return r100_cp_init(rdev, rdev->cp.ring_size);
+ }
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+ tmp = RREG32(RADEON_RBBM_STATUS);
+ DRM_ERROR("Failed to reset GA ! (RBBM_STATUS=0x%08X)\n", tmp);
+ return -1;
+}
+
+int r300_gpu_reset(struct radeon_device *rdev)
+{
+ uint32_t status;
+
+ /* reset order likely matter */
+ status = RREG32(RADEON_RBBM_STATUS);
+ /* reset HDP */
+ r100_hdp_reset(rdev);
+ /* reset rb2d */
+ if (status & ((1 << 17) | (1 << 18) | (1 << 27))) {
+ r100_rb2d_reset(rdev);
+ }
+ /* reset GA */
+ if (status & ((1 << 20) | (1 << 26))) {
+ r300_ga_reset(rdev);
+ }
+ /* reset CP */
+ status = RREG32(RADEON_RBBM_STATUS);
+ if (status & (1 << 16)) {
+ r100_cp_reset(rdev);
+ }
+ /* Check if GPU is idle */
+ status = RREG32(RADEON_RBBM_STATUS);
+ if (status & (1 << 31)) {
+ DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status);
+ return -1;
+ }
+ DRM_INFO("GPU reset succeed (RBBM_STATUS=0x%08X)\n", status);
+ return 0;
+}
+
+
+/*
+ * r300,r350,rv350,rv380 VRAM info
+ */
+void r300_vram_info(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+
+ /* DDR for all card after R300 & IGP */
+ rdev->mc.vram_is_ddr = true;
+ tmp = RREG32(RADEON_MEM_CNTL);
+ if (tmp & R300_MEM_NUM_CHANNELS_MASK) {
+ rdev->mc.vram_width = 128;
+ } else {
+ rdev->mc.vram_width = 64;
+ }
+ rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
+
+ rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
+ rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+}
+
+
+/*
+ * Indirect registers accessor
+ */
+uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
+{
+ uint32_t r;
+
+ WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff));
+ (void)RREG32(RADEON_PCIE_INDEX);
+ r = RREG32(RADEON_PCIE_DATA);
+ return r;
+}
+
+void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
+{
+ WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff));
+ (void)RREG32(RADEON_PCIE_INDEX);
+ WREG32(RADEON_PCIE_DATA, (v));
+ (void)RREG32(RADEON_PCIE_DATA);
+}
+
+/*
+ * PCIE Lanes
+ */
+
+void rv370_set_pcie_lanes(struct radeon_device *rdev, int lanes)
+{
+ uint32_t link_width_cntl, mask;
+
+ if (rdev->flags & RADEON_IS_IGP)
+ return;
+
+ if (!(rdev->flags & RADEON_IS_PCIE))
+ return;
+
+ /* FIXME wait for idle */
+
+ switch (lanes) {
+ case 0:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
+ break;
+ case 1:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
+ break;
+ case 2:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
+ break;
+ case 4:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
+ break;
+ case 8:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
+ break;
+ case 12:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
+ break;
+ case 16:
+ default:
+ mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
+ break;
+ }
+
+ link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
+
+ if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
+ (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))
+ return;
+
+ link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK |
+ RADEON_PCIE_LC_RECONFIG_NOW |
+ RADEON_PCIE_LC_RECONFIG_LATER |
+ RADEON_PCIE_LC_SHORT_RECONFIG_EN);
+ link_width_cntl |= mask;
+ WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
+ WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, (link_width_cntl |
+ RADEON_PCIE_LC_RECONFIG_NOW));
+
+ /* wait for lane set to complete */
+ link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
+ while (link_width_cntl == 0xffffffff)
+ link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
+
+}
+
+
+/*
+ * Debugfs info
+ */
+#if defined(CONFIG_DEBUG_FS)
+static int rv370_debugfs_pcie_gart_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ uint32_t tmp;
+
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
+ seq_printf(m, "PCIE_TX_GART_CNTL 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_BASE);
+ seq_printf(m, "PCIE_TX_GART_BASE 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_LO);
+ seq_printf(m, "PCIE_TX_GART_START_LO 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_HI);
+ seq_printf(m, "PCIE_TX_GART_START_HI 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_LO);
+ seq_printf(m, "PCIE_TX_GART_END_LO 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_HI);
+ seq_printf(m, "PCIE_TX_GART_END_HI 0x%08x\n", tmp);
+ tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_ERROR);
+ seq_printf(m, "PCIE_TX_GART_ERROR 0x%08x\n", tmp);
+ return 0;
+}
+
+static struct drm_info_list rv370_pcie_gart_info_list[] = {
+ {"rv370_pcie_gart_info", rv370_debugfs_pcie_gart_info, 0, NULL},
+};
+#endif
+
+int rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+ return radeon_debugfs_add_files(rdev, rv370_pcie_gart_info_list, 1);
+#else
+ return 0;
+#endif
+}
+
+
+/*
+ * CS functions
+ */
+struct r300_cs_track_cb {
+ struct radeon_object *robj;
+ unsigned pitch;
+ unsigned cpp;
+ unsigned offset;
+};
+
+struct r300_cs_track {
+ unsigned num_cb;
+ unsigned maxy;
+ struct r300_cs_track_cb cb[4];
+ struct r300_cs_track_cb zb;
+ bool z_enabled;
+};
+
+int r300_cs_track_check(struct radeon_device *rdev, struct r300_cs_track *track)
+{
+ unsigned i;
+ unsigned long size;
+
+ for (i = 0; i < track->num_cb; i++) {
+ if (track->cb[i].robj == NULL) {
+ DRM_ERROR("[drm] No buffer for color buffer %d !\n", i);
+ return -EINVAL;
+ }
+ size = track->cb[i].pitch * track->cb[i].cpp * track->maxy;
+ size += track->cb[i].offset;
+ if (size > radeon_object_size(track->cb[i].robj)) {
+ DRM_ERROR("[drm] Buffer too small for color buffer %d "
+ "(need %lu have %lu) !\n", i, size,
+ radeon_object_size(track->cb[i].robj));
+ DRM_ERROR("[drm] color buffer %d (%u %u %u %u)\n",
+ i, track->cb[i].pitch, track->cb[i].cpp,
+ track->cb[i].offset, track->maxy);
+ return -EINVAL;
+ }
+ }
+ if (track->z_enabled) {
+ if (track->zb.robj == NULL) {
+ DRM_ERROR("[drm] No buffer for z buffer !\n");
+ return -EINVAL;
+ }
+ size = track->zb.pitch * track->zb.cpp * track->maxy;
+ size += track->zb.offset;
+ if (size > radeon_object_size(track->zb.robj)) {
+ DRM_ERROR("[drm] Buffer too small for z buffer "
+ "(need %lu have %lu) !\n", size,
+ radeon_object_size(track->zb.robj));
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static inline void r300_cs_track_clear(struct r300_cs_track *track)
+{
+ unsigned i;
+
+ track->num_cb = 4;
+ track->maxy = 4096;
+ for (i = 0; i < track->num_cb; i++) {
+ track->cb[i].robj = NULL;
+ track->cb[i].pitch = 8192;
+ track->cb[i].cpp = 16;
+ track->cb[i].offset = 0;
+ }
+ track->z_enabled = true;
+ track->zb.robj = NULL;
+ track->zb.pitch = 8192;
+ track->zb.cpp = 4;
+ track->zb.offset = 0;
+}
+
+static unsigned r300_auth_reg[] = {
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFBF, 0xFFFFFFFF, 0xFFFFFFBF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0x17FF1FFF, 0xFFFFFFFC, 0xFFFFFFFF, 0xFF30FFBF,
+ 0xFFFFFFF8, 0xC3E6FFFF, 0xFFFFF6DF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF03F,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFCFCC, 0xF00E9FFF, 0x007C0000,
+ 0xF0000078, 0xFF000009, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFF7FF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFC78, 0xFFFFFFFF, 0xFFFFFFFC, 0xFFFFFFFF,
+ 0x38FF8F50, 0xFFF88082, 0xF000000C, 0xFAE009FF,
+ 0x00000000, 0x00000000, 0xFFFF0000, 0x00000000,
+ 0x00000000, 0x0000C100, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0xFFFF0000, 0xFFFFFFFF, 0xFF80FFFF,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x0003FC01, 0xFFFFFFF8, 0xFE800B19,
+};
+
+static int r300_packet0_check(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt,
+ unsigned idx, unsigned reg)
+{
+ struct radeon_cs_chunk *ib_chunk;
+ struct radeon_cs_reloc *reloc;
+ struct r300_cs_track *track;
+ volatile uint32_t *ib;
+ uint32_t tmp;
+ unsigned i;
+ int r;
+
+ ib = p->ib->ptr;
+ ib_chunk = &p->chunks[p->chunk_ib_idx];
+ track = (struct r300_cs_track *)p->track;
+ switch (reg) {
+ case RADEON_DST_PITCH_OFFSET:
+ case RADEON_SRC_PITCH_OFFSET:
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+ idx, reg);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ tmp = ib_chunk->kdata[idx] & 0x003fffff;
+ tmp += (((u32)reloc->lobj.gpu_offset) >> 10);
+ ib[idx] = (ib_chunk->kdata[idx] & 0xffc00000) | tmp;
+ break;
+ case R300_RB3D_COLOROFFSET0:
+ case R300_RB3D_COLOROFFSET1:
+ case R300_RB3D_COLOROFFSET2:
+ case R300_RB3D_COLOROFFSET3:
+ i = (reg - R300_RB3D_COLOROFFSET0) >> 2;
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+ idx, reg);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ track->cb[i].robj = reloc->robj;
+ track->cb[i].offset = ib_chunk->kdata[idx];
+ ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
+ break;
+ case R300_ZB_DEPTHOFFSET:
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+ idx, reg);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ track->zb.robj = reloc->robj;
+ track->zb.offset = ib_chunk->kdata[idx];
+ ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
+ break;
+ case R300_TX_OFFSET_0:
+ case R300_TX_OFFSET_0+4:
+ case R300_TX_OFFSET_0+8:
+ case R300_TX_OFFSET_0+12:
+ case R300_TX_OFFSET_0+16:
+ case R300_TX_OFFSET_0+20:
+ case R300_TX_OFFSET_0+24:
+ case R300_TX_OFFSET_0+28:
+ case R300_TX_OFFSET_0+32:
+ case R300_TX_OFFSET_0+36:
+ case R300_TX_OFFSET_0+40:
+ case R300_TX_OFFSET_0+44:
+ case R300_TX_OFFSET_0+48:
+ case R300_TX_OFFSET_0+52:
+ case R300_TX_OFFSET_0+56:
+ case R300_TX_OFFSET_0+60:
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+ idx, reg);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
+ break;
+ /* Tracked registers */
+ case 0x43E4:
+ /* SC_SCISSOR1 */
+
+ track->maxy = ((ib_chunk->kdata[idx] >> 13) & 0x1FFF) + 1;
+ if (p->rdev->family < CHIP_RV515) {
+ track->maxy -= 1440;
+ }
+ break;
+ case 0x4E00:
+ /* RB3D_CCTL */
+ track->num_cb = ((ib_chunk->kdata[idx] >> 5) & 0x3) + 1;
+ break;
+ case 0x4E38:
+ case 0x4E3C:
+ case 0x4E40:
+ case 0x4E44:
+ /* RB3D_COLORPITCH0 */
+ /* RB3D_COLORPITCH1 */
+ /* RB3D_COLORPITCH2 */
+ /* RB3D_COLORPITCH3 */
+ i = (reg - 0x4E38) >> 2;
+ track->cb[i].pitch = ib_chunk->kdata[idx] & 0x3FFE;
+ switch (((ib_chunk->kdata[idx] >> 21) & 0xF)) {
+ case 9:
+ case 11:
+ case 12:
+ track->cb[i].cpp = 1;
+ break;
+ case 3:
+ case 4:
+ case 13:
+ case 15:
+ track->cb[i].cpp = 2;
+ break;
+ case 6:
+ track->cb[i].cpp = 4;
+ break;
+ case 10:
+ track->cb[i].cpp = 8;
+ break;
+ case 7:
+ track->cb[i].cpp = 16;
+ break;
+ default:
+ DRM_ERROR("Invalid color buffer format (%d) !\n",
+ ((ib_chunk->kdata[idx] >> 21) & 0xF));
+ return -EINVAL;
+ }
+ break;
+ case 0x4F00:
+ /* ZB_CNTL */
+ if (ib_chunk->kdata[idx] & 2) {
+ track->z_enabled = true;
+ } else {
+ track->z_enabled = false;
+ }
+ break;
+ case 0x4F10:
+ /* ZB_FORMAT */
+ switch ((ib_chunk->kdata[idx] & 0xF)) {
+ case 0:
+ case 1:
+ track->zb.cpp = 2;
+ break;
+ case 2:
+ track->zb.cpp = 4;
+ break;
+ default:
+ DRM_ERROR("Invalid z buffer format (%d) !\n",
+ (ib_chunk->kdata[idx] & 0xF));
+ return -EINVAL;
+ }
+ break;
+ case 0x4F24:
+ /* ZB_DEPTHPITCH */
+ track->zb.pitch = ib_chunk->kdata[idx] & 0x3FFC;
+ break;
+ default:
+ printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n", reg, idx);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int r300_packet3_check(struct radeon_cs_parser *p,
+ struct radeon_cs_packet *pkt)
+{
+ struct radeon_cs_chunk *ib_chunk;
+ struct radeon_cs_reloc *reloc;
+ struct r300_cs_track *track;
+ volatile uint32_t *ib;
+ unsigned idx;
+ unsigned i, c;
+ int r;
+
+ ib = p->ib->ptr;
+ ib_chunk = &p->chunks[p->chunk_ib_idx];
+ idx = pkt->idx + 1;
+ track = (struct r300_cs_track *)p->track;
+ switch (pkt->opcode) {
+ case PACKET3_3D_LOAD_VBPNTR:
+ c = ib_chunk->kdata[idx++];
+ for (i = 0; i < (c - 1); i += 2, idx += 3) {
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for packet3 %d\n",
+ pkt->opcode);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for packet3 %d\n",
+ pkt->opcode);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ ib[idx+2] = ib_chunk->kdata[idx+2] + ((u32)reloc->lobj.gpu_offset);
+ }
+ if (c & 1) {
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for packet3 %d\n",
+ pkt->opcode);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
+ }
+ break;
+ case PACKET3_INDX_BUFFER:
+ r = r100_cs_packet_next_reloc(p, &reloc);
+ if (r) {
+ DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
+ r100_cs_dump_packet(p, pkt);
+ return r;
+ }
+ ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
+ break;
+ /* Draw packet */
+ case PACKET3_3D_DRAW_VBUF:
+ case PACKET3_3D_DRAW_IMMD:
+ case PACKET3_3D_DRAW_INDX:
+ case PACKET3_3D_DRAW_VBUF_2:
+ case PACKET3_3D_DRAW_IMMD_2:
+ case PACKET3_3D_DRAW_INDX_2:
+ r = r300_cs_track_check(p->rdev, track);
+ if (r) {
+ return r;
+ }
+ break;
+ case PACKET3_NOP:
+ break;
+ default:
+ DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int r300_cs_parse(struct radeon_cs_parser *p)
+{
+ struct radeon_cs_packet pkt;
+ struct r300_cs_track track;
+ int r;
+
+ r300_cs_track_clear(&track);
+ p->track = &track;
+ do {
+ r = r100_cs_packet_parse(p, &pkt, p->idx);
+ if (r) {
+ return r;
+ }
+ p->idx += pkt.count + 2;
+ switch (pkt.type) {
+ case PACKET_TYPE0:
+ r = r100_cs_parse_packet0(p, &pkt,
+ r300_auth_reg,
+ ARRAY_SIZE(r300_auth_reg),
+ &r300_packet0_check);
+ break;
+ case PACKET_TYPE2:
+ break;
+ case PACKET_TYPE3:
+ r = r300_packet3_check(p, &pkt);
+ break;
+ default:
+ DRM_ERROR("Unknown packet type %d !\n", pkt.type);
+ return -EINVAL;
+ }
+ if (r) {
+ return r;
+ }
+ } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
+ return 0;
+}