diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_cs.c | 783 |
1 files changed, 783 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c new file mode 100644 index 000000000000..d28970db6a2d --- /dev/null +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -0,0 +1,783 @@ +/* + * 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 "drmP.h" +#include "radeon.h" +#include "r600d.h" + +static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p, + struct radeon_cs_reloc **cs_reloc); +static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p, + struct radeon_cs_reloc **cs_reloc); +typedef int (*next_reloc_t)(struct radeon_cs_parser*, struct radeon_cs_reloc**); +static next_reloc_t r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_mm; + +/** + * r600_cs_packet_parse() - parse cp packet and point ib index to next packet + * @parser: parser structure holding parsing context. + * @pkt: where to store packet informations + * + * Assume that chunk_ib_index is properly set. Will return -EINVAL + * if packet is bigger than remaining ib size. or if packets is unknown. + **/ +int r600_cs_packet_parse(struct radeon_cs_parser *p, + struct radeon_cs_packet *pkt, + unsigned idx) +{ + struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx]; + uint32_t header; + + if (idx >= ib_chunk->length_dw) { + DRM_ERROR("Can not parse packet at %d after CS end %d !\n", + idx, ib_chunk->length_dw); + return -EINVAL; + } + header = radeon_get_ib_value(p, idx); + pkt->idx = idx; + pkt->type = CP_PACKET_GET_TYPE(header); + pkt->count = CP_PACKET_GET_COUNT(header); + pkt->one_reg_wr = 0; + switch (pkt->type) { + case PACKET_TYPE0: + pkt->reg = CP_PACKET0_GET_REG(header); + break; + case PACKET_TYPE3: + pkt->opcode = CP_PACKET3_GET_OPCODE(header); + break; + case PACKET_TYPE2: + pkt->count = -1; + break; + default: + DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx); + return -EINVAL; + } + if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) { + DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n", + pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw); + return -EINVAL; + } + return 0; +} + +/** + * r600_cs_packet_next_reloc_mm() - parse next packet which should be reloc packet3 + * @parser: parser structure holding parsing context. + * @data: pointer to relocation data + * @offset_start: starting offset + * @offset_mask: offset mask (to align start offset on) + * @reloc: reloc informations + * + * Check next packet is relocation packet3, do bo validation and compute + * GPU offset using the provided start. + **/ +static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p, + struct radeon_cs_reloc **cs_reloc) +{ + struct radeon_cs_chunk *relocs_chunk; + struct radeon_cs_packet p3reloc; + unsigned idx; + int r; + + if (p->chunk_relocs_idx == -1) { + DRM_ERROR("No relocation chunk !\n"); + return -EINVAL; + } + *cs_reloc = NULL; + relocs_chunk = &p->chunks[p->chunk_relocs_idx]; + r = r600_cs_packet_parse(p, &p3reloc, p->idx); + if (r) { + return r; + } + p->idx += p3reloc.count + 2; + if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) { + DRM_ERROR("No packet3 for relocation for packet at %d.\n", + p3reloc.idx); + return -EINVAL; + } + idx = radeon_get_ib_value(p, p3reloc.idx + 1); + if (idx >= relocs_chunk->length_dw) { + DRM_ERROR("Relocs at %d after relocations chunk end %d !\n", + idx, relocs_chunk->length_dw); + return -EINVAL; + } + /* FIXME: we assume reloc size is 4 dwords */ + *cs_reloc = p->relocs_ptr[(idx / 4)]; + return 0; +} + +/** + * r600_cs_packet_next_reloc_nomm() - parse next packet which should be reloc packet3 + * @parser: parser structure holding parsing context. + * @data: pointer to relocation data + * @offset_start: starting offset + * @offset_mask: offset mask (to align start offset on) + * @reloc: reloc informations + * + * Check next packet is relocation packet3, do bo validation and compute + * GPU offset using the provided start. + **/ +static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p, + struct radeon_cs_reloc **cs_reloc) +{ + struct radeon_cs_chunk *relocs_chunk; + struct radeon_cs_packet p3reloc; + unsigned idx; + int r; + + if (p->chunk_relocs_idx == -1) { + DRM_ERROR("No relocation chunk !\n"); + return -EINVAL; + } + *cs_reloc = NULL; + relocs_chunk = &p->chunks[p->chunk_relocs_idx]; + r = r600_cs_packet_parse(p, &p3reloc, p->idx); + if (r) { + return r; + } + p->idx += p3reloc.count + 2; + if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) { + DRM_ERROR("No packet3 for relocation for packet at %d.\n", + p3reloc.idx); + return -EINVAL; + } + idx = radeon_get_ib_value(p, p3reloc.idx + 1); + if (idx >= relocs_chunk->length_dw) { + DRM_ERROR("Relocs at %d after relocations chunk end %d !\n", + idx, relocs_chunk->length_dw); + return -EINVAL; + } + *cs_reloc = &p->relocs[0]; + (*cs_reloc)->lobj.gpu_offset = (u64)relocs_chunk->kdata[idx + 3] << 32; + (*cs_reloc)->lobj.gpu_offset |= relocs_chunk->kdata[idx + 0]; + return 0; +} + +/** + * r600_cs_packet_next_vline() - parse userspace VLINE packet + * @parser: parser structure holding parsing context. + * + * Userspace sends a special sequence for VLINE waits. + * PACKET0 - VLINE_START_END + value + * PACKET3 - WAIT_REG_MEM poll vline status reg + * RELOC (P3) - crtc_id in reloc. + * + * This function parses this and relocates the VLINE START END + * and WAIT_REG_MEM packets to the correct crtc. + * It also detects a switched off crtc and nulls out the + * wait in that case. + */ +static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p) +{ + struct drm_mode_object *obj; + struct drm_crtc *crtc; + struct radeon_crtc *radeon_crtc; + struct radeon_cs_packet p3reloc, wait_reg_mem; + int crtc_id; + int r; + uint32_t header, h_idx, reg, wait_reg_mem_info; + volatile uint32_t *ib; + + ib = p->ib->ptr; + + /* parse the WAIT_REG_MEM */ + r = r600_cs_packet_parse(p, &wait_reg_mem, p->idx); + if (r) + return r; + + /* check its a WAIT_REG_MEM */ + if (wait_reg_mem.type != PACKET_TYPE3 || + wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) { + DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n"); + r = -EINVAL; + return r; + } + + wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1); + /* bit 4 is reg (0) or mem (1) */ + if (wait_reg_mem_info & 0x10) { + DRM_ERROR("vline WAIT_REG_MEM waiting on MEM rather than REG\n"); + r = -EINVAL; + return r; + } + /* waiting for value to be equal */ + if ((wait_reg_mem_info & 0x7) != 0x3) { + DRM_ERROR("vline WAIT_REG_MEM function not equal\n"); + r = -EINVAL; + return r; + } + if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != AVIVO_D1MODE_VLINE_STATUS) { + DRM_ERROR("vline WAIT_REG_MEM bad reg\n"); + r = -EINVAL; + return r; + } + + if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != AVIVO_D1MODE_VLINE_STAT) { + DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n"); + r = -EINVAL; + return r; + } + + /* jump over the NOP */ + r = r600_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2); + if (r) + return r; + + h_idx = p->idx - 2; + p->idx += wait_reg_mem.count + 2; + p->idx += p3reloc.count + 2; + + header = radeon_get_ib_value(p, h_idx); + crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1); + reg = header >> 2; + mutex_lock(&p->rdev->ddev->mode_config.mutex); + obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC); + if (!obj) { + DRM_ERROR("cannot find crtc %d\n", crtc_id); + r = -EINVAL; + goto out; + } + crtc = obj_to_crtc(obj); + radeon_crtc = to_radeon_crtc(crtc); + crtc_id = radeon_crtc->crtc_id; + + if (!crtc->enabled) { + /* if the CRTC isn't enabled - we need to nop out the WAIT_REG_MEM */ + ib[h_idx + 2] = PACKET2(0); + ib[h_idx + 3] = PACKET2(0); + ib[h_idx + 4] = PACKET2(0); + ib[h_idx + 5] = PACKET2(0); + ib[h_idx + 6] = PACKET2(0); + ib[h_idx + 7] = PACKET2(0); + ib[h_idx + 8] = PACKET2(0); + } else if (crtc_id == 1) { + switch (reg) { + case AVIVO_D1MODE_VLINE_START_END: + header &= ~R600_CP_PACKET0_REG_MASK; + header |= AVIVO_D2MODE_VLINE_START_END >> 2; + break; + default: + DRM_ERROR("unknown crtc reloc\n"); + r = -EINVAL; + goto out; + } + ib[h_idx] = header; + ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2; + } +out: + mutex_unlock(&p->rdev->ddev->mode_config.mutex); + return r; +} + +static int r600_packet0_check(struct radeon_cs_parser *p, + struct radeon_cs_packet *pkt, + unsigned idx, unsigned reg) +{ + int r; + + switch (reg) { + case AVIVO_D1MODE_VLINE_START_END: + r = r600_cs_packet_parse_vline(p); + if (r) { + DRM_ERROR("No reloc for ib[%d]=0x%04X\n", + idx, reg); + return r; + } + break; + default: + printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n", + reg, idx); + return -EINVAL; + } + return 0; +} + +static int r600_cs_parse_packet0(struct radeon_cs_parser *p, + struct radeon_cs_packet *pkt) +{ + unsigned reg, i; + unsigned idx; + int r; + + idx = pkt->idx + 1; + reg = pkt->reg; + for (i = 0; i <= pkt->count; i++, idx++, reg += 4) { + r = r600_packet0_check(p, pkt, idx, reg); + if (r) { + return r; + } + } + return 0; +} + +static int r600_packet3_check(struct radeon_cs_parser *p, + struct radeon_cs_packet *pkt) +{ + struct radeon_cs_reloc *reloc; + volatile u32 *ib; + unsigned idx; + unsigned i; + unsigned start_reg, end_reg, reg; + int r; + u32 idx_value; + + ib = p->ib->ptr; + idx = pkt->idx + 1; + idx_value = radeon_get_ib_value(p, idx); + + switch (pkt->opcode) { + case PACKET3_START_3D_CMDBUF: + if (p->family >= CHIP_RV770 || pkt->count) { + DRM_ERROR("bad START_3D\n"); + return -EINVAL; + } + break; + case PACKET3_CONTEXT_CONTROL: + if (pkt->count != 1) { + DRM_ERROR("bad CONTEXT_CONTROL\n"); + return -EINVAL; + } + break; + case PACKET3_INDEX_TYPE: + case PACKET3_NUM_INSTANCES: + if (pkt->count) { + DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES\n"); + return -EINVAL; + } + break; + case PACKET3_DRAW_INDEX: + if (pkt->count != 3) { + DRM_ERROR("bad DRAW_INDEX\n"); + return -EINVAL; + } + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad DRAW_INDEX\n"); + return -EINVAL; + } + ib[idx+0] = idx_value + (u32)(reloc->lobj.gpu_offset & 0xffffffff); + ib[idx+1] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff; + break; + case PACKET3_DRAW_INDEX_AUTO: + if (pkt->count != 1) { + DRM_ERROR("bad DRAW_INDEX_AUTO\n"); + return -EINVAL; + } + break; + case PACKET3_DRAW_INDEX_IMMD_BE: + case PACKET3_DRAW_INDEX_IMMD: + if (pkt->count < 2) { + DRM_ERROR("bad DRAW_INDEX_IMMD\n"); + return -EINVAL; + } + break; + case PACKET3_WAIT_REG_MEM: + if (pkt->count != 5) { + DRM_ERROR("bad WAIT_REG_MEM\n"); + return -EINVAL; + } + /* bit 4 is reg (0) or mem (1) */ + if (idx_value & 0x10) { + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad WAIT_REG_MEM\n"); + return -EINVAL; + } + ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff); + ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff; + } + break; + case PACKET3_SURFACE_SYNC: + if (pkt->count != 3) { + DRM_ERROR("bad SURFACE_SYNC\n"); + return -EINVAL; + } + /* 0xffffffff/0x0 is flush all cache flag */ + if (radeon_get_ib_value(p, idx + 1) != 0xffffffff || + radeon_get_ib_value(p, idx + 2) != 0) { + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad SURFACE_SYNC\n"); + return -EINVAL; + } + ib[idx+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + } + break; + case PACKET3_EVENT_WRITE: + if (pkt->count != 2 && pkt->count != 0) { + DRM_ERROR("bad EVENT_WRITE\n"); + return -EINVAL; + } + if (pkt->count) { + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad EVENT_WRITE\n"); + return -EINVAL; + } + ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff); + ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff; + } + break; + case PACKET3_EVENT_WRITE_EOP: + if (pkt->count != 4) { + DRM_ERROR("bad EVENT_WRITE_EOP\n"); + return -EINVAL; + } + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad EVENT_WRITE\n"); + return -EINVAL; + } + ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff); + ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff; + break; + case PACKET3_SET_CONFIG_REG: + start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_CONFIG_REG_OFFSET) || + (start_reg >= PACKET3_SET_CONFIG_REG_END) || + (end_reg >= PACKET3_SET_CONFIG_REG_END)) { + DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n"); + return -EINVAL; + } + for (i = 0; i < pkt->count; i++) { + reg = start_reg + (4 * i); + switch (reg) { + case CP_COHER_BASE: + /* use PACKET3_SURFACE_SYNC */ + return -EINVAL; + default: + break; + } + } + break; + case PACKET3_SET_CONTEXT_REG: + start_reg = (idx_value << 2) + PACKET3_SET_CONTEXT_REG_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_CONTEXT_REG_OFFSET) || + (start_reg >= PACKET3_SET_CONTEXT_REG_END) || + (end_reg >= PACKET3_SET_CONTEXT_REG_END)) { + DRM_ERROR("bad PACKET3_SET_CONTEXT_REG\n"); + return -EINVAL; + } + for (i = 0; i < pkt->count; i++) { + reg = start_reg + (4 * i); + switch (reg) { + case DB_DEPTH_BASE: + case CB_COLOR0_BASE: + case CB_COLOR1_BASE: + case CB_COLOR2_BASE: + case CB_COLOR3_BASE: + case CB_COLOR4_BASE: + case CB_COLOR5_BASE: + case CB_COLOR6_BASE: + case CB_COLOR7_BASE: + case SQ_PGM_START_FS: + case SQ_PGM_START_ES: + case SQ_PGM_START_VS: + case SQ_PGM_START_GS: + case SQ_PGM_START_PS: + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad SET_CONTEXT_REG " + "0x%04X\n", reg); + return -EINVAL; + } + ib[idx+1+i] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + break; + case VGT_DMA_BASE: + case VGT_DMA_BASE_HI: + /* These should be handled by DRAW_INDEX packet 3 */ + case VGT_STRMOUT_BASE_OFFSET_0: + case VGT_STRMOUT_BASE_OFFSET_1: + case VGT_STRMOUT_BASE_OFFSET_2: + case VGT_STRMOUT_BASE_OFFSET_3: + case VGT_STRMOUT_BASE_OFFSET_HI_0: + case VGT_STRMOUT_BASE_OFFSET_HI_1: + case VGT_STRMOUT_BASE_OFFSET_HI_2: + case VGT_STRMOUT_BASE_OFFSET_HI_3: + case VGT_STRMOUT_BUFFER_BASE_0: + case VGT_STRMOUT_BUFFER_BASE_1: + case VGT_STRMOUT_BUFFER_BASE_2: + case VGT_STRMOUT_BUFFER_BASE_3: + case VGT_STRMOUT_BUFFER_OFFSET_0: + case VGT_STRMOUT_BUFFER_OFFSET_1: + case VGT_STRMOUT_BUFFER_OFFSET_2: + case VGT_STRMOUT_BUFFER_OFFSET_3: + /* These should be handled by STRMOUT_BUFFER packet 3 */ + DRM_ERROR("bad context reg: 0x%08x\n", reg); + return -EINVAL; + default: + break; + } + } + break; + case PACKET3_SET_RESOURCE: + if (pkt->count % 7) { + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + start_reg = (idx_value << 2) + PACKET3_SET_RESOURCE_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_RESOURCE_OFFSET) || + (start_reg >= PACKET3_SET_RESOURCE_END) || + (end_reg >= PACKET3_SET_RESOURCE_END)) { + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + for (i = 0; i < (pkt->count / 7); i++) { + switch (G__SQ_VTX_CONSTANT_TYPE(radeon_get_ib_value(p, idx+(i*7)+6+1))) { + case SQ_TEX_VTX_VALID_TEXTURE: + /* tex base */ + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + ib[idx+1+(i*7)+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + /* tex mip base */ + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + ib[idx+1+(i*7)+3] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + break; + case SQ_TEX_VTX_VALID_BUFFER: + /* vtx base */ + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + ib[idx+1+(i*7)+0] += (u32)((reloc->lobj.gpu_offset) & 0xffffffff); + ib[idx+1+(i*7)+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff; + break; + case SQ_TEX_VTX_INVALID_TEXTURE: + case SQ_TEX_VTX_INVALID_BUFFER: + default: + DRM_ERROR("bad SET_RESOURCE\n"); + return -EINVAL; + } + } + break; + case PACKET3_SET_ALU_CONST: + start_reg = (idx_value << 2) + PACKET3_SET_ALU_CONST_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_ALU_CONST_OFFSET) || + (start_reg >= PACKET3_SET_ALU_CONST_END) || + (end_reg >= PACKET3_SET_ALU_CONST_END)) { + DRM_ERROR("bad SET_ALU_CONST\n"); + return -EINVAL; + } + break; + case PACKET3_SET_BOOL_CONST: + start_reg = (idx_value << 2) + PACKET3_SET_BOOL_CONST_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_BOOL_CONST_OFFSET) || + (start_reg >= PACKET3_SET_BOOL_CONST_END) || + (end_reg >= PACKET3_SET_BOOL_CONST_END)) { + DRM_ERROR("bad SET_BOOL_CONST\n"); + return -EINVAL; + } + break; + case PACKET3_SET_LOOP_CONST: + start_reg = (idx_value << 2) + PACKET3_SET_LOOP_CONST_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_LOOP_CONST_OFFSET) || + (start_reg >= PACKET3_SET_LOOP_CONST_END) || + (end_reg >= PACKET3_SET_LOOP_CONST_END)) { + DRM_ERROR("bad SET_LOOP_CONST\n"); + return -EINVAL; + } + break; + case PACKET3_SET_CTL_CONST: + start_reg = (idx_value << 2) + PACKET3_SET_CTL_CONST_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_CTL_CONST_OFFSET) || + (start_reg >= PACKET3_SET_CTL_CONST_END) || + (end_reg >= PACKET3_SET_CTL_CONST_END)) { + DRM_ERROR("bad SET_CTL_CONST\n"); + return -EINVAL; + } + break; + case PACKET3_SET_SAMPLER: + if (pkt->count % 3) { + DRM_ERROR("bad SET_SAMPLER\n"); + return -EINVAL; + } + start_reg = (idx_value << 2) + PACKET3_SET_SAMPLER_OFFSET; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_SAMPLER_OFFSET) || + (start_reg >= PACKET3_SET_SAMPLER_END) || + (end_reg >= PACKET3_SET_SAMPLER_END)) { + DRM_ERROR("bad SET_SAMPLER\n"); + return -EINVAL; + } + break; + case PACKET3_SURFACE_BASE_UPDATE: + if (p->family >= CHIP_RV770 || p->family == CHIP_R600) { + DRM_ERROR("bad SURFACE_BASE_UPDATE\n"); + return -EINVAL; + } + if (pkt->count) { + DRM_ERROR("bad SURFACE_BASE_UPDATE\n"); + return -EINVAL; + } + break; + case PACKET3_NOP: + break; + default: + DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode); + return -EINVAL; + } + return 0; +} + +int r600_cs_parse(struct radeon_cs_parser *p) +{ + struct radeon_cs_packet pkt; + int r; + + do { + r = r600_cs_packet_parse(p, &pkt, p->idx); + if (r) { + return r; + } + p->idx += pkt.count + 2; + switch (pkt.type) { + case PACKET_TYPE0: + r = r600_cs_parse_packet0(p, &pkt); + break; + case PACKET_TYPE2: + break; + case PACKET_TYPE3: + r = r600_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); +#if 0 + for (r = 0; r < p->ib->length_dw; r++) { + printk(KERN_INFO "%05d 0x%08X\n", r, p->ib->ptr[r]); + mdelay(1); + } +#endif + return 0; +} + +static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p) +{ + if (p->chunk_relocs_idx == -1) { + return 0; + } + p->relocs = kcalloc(1, sizeof(struct radeon_cs_reloc), GFP_KERNEL); + if (p->relocs == NULL) { + return -ENOMEM; + } + return 0; +} + +/** + * cs_parser_fini() - clean parser states + * @parser: parser structure holding parsing context. + * @error: error number + * + * If error is set than unvalidate buffer, otherwise just free memory + * used by parsing context. + **/ +static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error) +{ + unsigned i; + + kfree(parser->relocs); + for (i = 0; i < parser->nchunks; i++) { + kfree(parser->chunks[i].kdata); + kfree(parser->chunks[i].kpage[0]); + kfree(parser->chunks[i].kpage[1]); + } + kfree(parser->chunks); + kfree(parser->chunks_array); +} + +int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp, + unsigned family, u32 *ib, int *l) +{ + struct radeon_cs_parser parser; + struct radeon_cs_chunk *ib_chunk; + struct radeon_ib fake_ib; + int r; + + /* initialize parser */ + memset(&parser, 0, sizeof(struct radeon_cs_parser)); + parser.filp = filp; + parser.rdev = NULL; + parser.family = family; + parser.ib = &fake_ib; + fake_ib.ptr = ib; + r = radeon_cs_parser_init(&parser, data); + if (r) { + DRM_ERROR("Failed to initialize parser !\n"); + r600_cs_parser_fini(&parser, r); + return r; + } + r = r600_cs_parser_relocs_legacy(&parser); + if (r) { + DRM_ERROR("Failed to parse relocation !\n"); + r600_cs_parser_fini(&parser, r); + return r; + } + /* Copy the packet into the IB, the parser will read from the + * input memory (cached) and write to the IB (which can be + * uncached). */ + ib_chunk = &parser.chunks[parser.chunk_ib_idx]; + parser.ib->length_dw = ib_chunk->length_dw; + *l = parser.ib->length_dw; + r = r600_cs_parse(&parser); + if (r) { + DRM_ERROR("Invalid command stream !\n"); + r600_cs_parser_fini(&parser, r); + return r; + } + r = radeon_cs_finish_pages(&parser); + if (r) { + DRM_ERROR("Invalid command stream !\n"); + r600_cs_parser_fini(&parser, r); + return r; + } + r600_cs_parser_fini(&parser, r); + return r; +} + +void r600_cs_legacy_init(void) +{ + r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_nomm; +} |