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OpenCloudOS-Kernel/drivers/gpu/drm/radeon/r600_cs.c

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/*
* 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 = CP_PACKET0_GET_REG(header);
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;
}
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