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linux/drivers/gpu/drm/radeon/r600_blit_kms.c
Alex Deucher 268b2510de drm/radeon/kms: fix alignment when allocating buffers 
We were previously dropping alignment requests on the floor
when allocating buffers so we always ended up page aligned.
Certain tiling modes on 6xx+ require larger alignment which
wasn't happening before.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18 14:56:53 +10:00

827 lines
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/*
* Copyright 2009 Advanced Micro Devices, Inc.
* Copyright 2009 Red Hat Inc.
*
* 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
* THE COPYRIGHT HOLDER(S) 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.
*
*/
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon.h"
#include "r600d.h"
#include "r600_blit_shaders.h"
#define DI_PT_RECTLIST 0x11
#define DI_INDEX_SIZE_16_BIT 0x0
#define DI_SRC_SEL_AUTO_INDEX 0x2
#define FMT_8 0x1
#define FMT_5_6_5 0x8
#define FMT_8_8_8_8 0x1a
#define COLOR_8 0x1
#define COLOR_5_6_5 0x8
#define COLOR_8_8_8_8 0x1a
/* emits 21 on rv770+, 23 on r600 */
static void
set_render_target(struct radeon_device *rdev, int format,
int w, int h, u64 gpu_addr)
{
u32 cb_color_info;
int pitch, slice;
h = ALIGN(h, 8);
if (h < 8)
h = 8;
cb_color_info = ((format << 2) | (1 << 27));
pitch = (w / 8) - 1;
slice = ((w * h) / 64) - 1;
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_BASE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, gpu_addr >> 8);
if (rdev->family > CHIP_R600 && rdev->family < CHIP_RV770) {
radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_BASE_UPDATE, 0));
radeon_ring_write(rdev, 2 << 0);
}
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_SIZE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, (pitch << 0) | (slice << 10));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_VIEW - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_INFO - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, cb_color_info);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_TILE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_FRAG - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (CB_COLOR0_MASK - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
}
/* emits 5dw */
static void
cp_set_surface_sync(struct radeon_device *rdev,
u32 sync_type, u32 size,
u64 mc_addr)
{
u32 cp_coher_size;
if (size == 0xffffffff)
cp_coher_size = 0xffffffff;
else
cp_coher_size = ((size + 255) >> 8);
radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
radeon_ring_write(rdev, sync_type);
radeon_ring_write(rdev, cp_coher_size);
radeon_ring_write(rdev, mc_addr >> 8);
radeon_ring_write(rdev, 10); /* poll interval */
}
/* emits 21dw + 1 surface sync = 26dw */
static void
set_shaders(struct radeon_device *rdev)
{
u64 gpu_addr;
u32 sq_pgm_resources;
/* setup shader regs */
sq_pgm_resources = (1 << 0);
/* VS */
gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_START_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, gpu_addr >> 8);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_RESOURCES_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, sq_pgm_resources);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_CF_OFFSET_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
/* PS */
gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.ps_offset;
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_START_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, gpu_addr >> 8);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_RESOURCES_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, sq_pgm_resources | (1 << 28));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_EXPORTS_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 2);
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
radeon_ring_write(rdev, (SQ_PGM_CF_OFFSET_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, 0);
gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
cp_set_surface_sync(rdev, PACKET3_SH_ACTION_ENA, 512, gpu_addr);
}
/* emits 9 + 1 sync (5) = 14*/
static void
set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr)
{
u32 sq_vtx_constant_word2;
sq_vtx_constant_word2 = ((upper_32_bits(gpu_addr) & 0xff) | (16 << 8));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 7));
radeon_ring_write(rdev, 0x460);
radeon_ring_write(rdev, gpu_addr & 0xffffffff);
radeon_ring_write(rdev, 48 - 1);
radeon_ring_write(rdev, sq_vtx_constant_word2);
radeon_ring_write(rdev, 1 << 0);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, SQ_TEX_VTX_VALID_BUFFER << 30);
if ((rdev->family == CHIP_RV610) ||
(rdev->family == CHIP_RV620) ||
(rdev->family == CHIP_RS780) ||
(rdev->family == CHIP_RS880) ||
(rdev->family == CHIP_RV710))
cp_set_surface_sync(rdev,
PACKET3_TC_ACTION_ENA, 48, gpu_addr);
else
cp_set_surface_sync(rdev,
PACKET3_VC_ACTION_ENA, 48, gpu_addr);
}
/* emits 9 */
static void
set_tex_resource(struct radeon_device *rdev,
int format, int w, int h, int pitch,
u64 gpu_addr)
{
uint32_t sq_tex_resource_word0, sq_tex_resource_word1, sq_tex_resource_word4;
if (h < 1)
h = 1;
sq_tex_resource_word0 = (1 << 0);
sq_tex_resource_word0 |= ((((pitch >> 3) - 1) << 8) |
((w - 1) << 19));
sq_tex_resource_word1 = (format << 26);
sq_tex_resource_word1 |= ((h - 1) << 0);
sq_tex_resource_word4 = ((1 << 14) |
(0 << 16) |
(1 << 19) |
(2 << 22) |
(3 << 25));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 7));
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, sq_tex_resource_word0);
radeon_ring_write(rdev, sq_tex_resource_word1);
radeon_ring_write(rdev, gpu_addr >> 8);
radeon_ring_write(rdev, gpu_addr >> 8);
radeon_ring_write(rdev, sq_tex_resource_word4);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, SQ_TEX_VTX_VALID_TEXTURE << 30);
}
/* emits 12 */
static void
set_scissors(struct radeon_device *rdev, int x1, int y1,
int x2, int y2)
{
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
radeon_ring_write(rdev, (PA_SC_SCREEN_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, (x1 << 0) | (y1 << 16));
radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
radeon_ring_write(rdev, (PA_SC_GENERIC_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
radeon_ring_write(rdev, (PA_SC_WINDOW_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
}
/* emits 10 */
static void
draw_auto(struct radeon_device *rdev)
{
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
radeon_ring_write(rdev, (VGT_PRIMITIVE_TYPE - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
radeon_ring_write(rdev, DI_PT_RECTLIST);
radeon_ring_write(rdev, PACKET3(PACKET3_INDEX_TYPE, 0));
radeon_ring_write(rdev, DI_INDEX_SIZE_16_BIT);
radeon_ring_write(rdev, PACKET3(PACKET3_NUM_INSTANCES, 0));
radeon_ring_write(rdev, 1);
radeon_ring_write(rdev, PACKET3(PACKET3_DRAW_INDEX_AUTO, 1));
radeon_ring_write(rdev, 3);
radeon_ring_write(rdev, DI_SRC_SEL_AUTO_INDEX);
}
/* emits 14 */
static void
set_default_state(struct radeon_device *rdev)
{
u32 sq_config, sq_gpr_resource_mgmt_1, sq_gpr_resource_mgmt_2;
u32 sq_thread_resource_mgmt, sq_stack_resource_mgmt_1, sq_stack_resource_mgmt_2;
int num_ps_gprs, num_vs_gprs, num_temp_gprs, num_gs_gprs, num_es_gprs;
int num_ps_threads, num_vs_threads, num_gs_threads, num_es_threads;
int num_ps_stack_entries, num_vs_stack_entries, num_gs_stack_entries, num_es_stack_entries;
u64 gpu_addr;
int dwords;
switch (rdev->family) {
case CHIP_R600:
num_ps_gprs = 192;
num_vs_gprs = 56;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 136;
num_vs_threads = 48;
num_gs_threads = 4;
num_es_threads = 4;
num_ps_stack_entries = 128;
num_vs_stack_entries = 128;
num_gs_stack_entries = 0;
num_es_stack_entries = 0;
break;
case CHIP_RV630:
case CHIP_RV635:
num_ps_gprs = 84;
num_vs_gprs = 36;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 144;
num_vs_threads = 40;
num_gs_threads = 4;
num_es_threads = 4;
num_ps_stack_entries = 40;
num_vs_stack_entries = 40;
num_gs_stack_entries = 32;
num_es_stack_entries = 16;
break;
case CHIP_RV610:
case CHIP_RV620:
case CHIP_RS780:
case CHIP_RS880:
default:
num_ps_gprs = 84;
num_vs_gprs = 36;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 136;
num_vs_threads = 48;
num_gs_threads = 4;
num_es_threads = 4;
num_ps_stack_entries = 40;
num_vs_stack_entries = 40;
num_gs_stack_entries = 32;
num_es_stack_entries = 16;
break;
case CHIP_RV670:
num_ps_gprs = 144;
num_vs_gprs = 40;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 136;
num_vs_threads = 48;
num_gs_threads = 4;
num_es_threads = 4;
num_ps_stack_entries = 40;
num_vs_stack_entries = 40;
num_gs_stack_entries = 32;
num_es_stack_entries = 16;
break;
case CHIP_RV770:
num_ps_gprs = 192;
num_vs_gprs = 56;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 188;
num_vs_threads = 60;
num_gs_threads = 0;
num_es_threads = 0;
num_ps_stack_entries = 256;
num_vs_stack_entries = 256;
num_gs_stack_entries = 0;
num_es_stack_entries = 0;
break;
case CHIP_RV730:
case CHIP_RV740:
num_ps_gprs = 84;
num_vs_gprs = 36;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 188;
num_vs_threads = 60;
num_gs_threads = 0;
num_es_threads = 0;
num_ps_stack_entries = 128;
num_vs_stack_entries = 128;
num_gs_stack_entries = 0;
num_es_stack_entries = 0;
break;
case CHIP_RV710:
num_ps_gprs = 192;
num_vs_gprs = 56;
num_temp_gprs = 4;
num_gs_gprs = 0;
num_es_gprs = 0;
num_ps_threads = 144;
num_vs_threads = 48;
num_gs_threads = 0;
num_es_threads = 0;
num_ps_stack_entries = 128;
num_vs_stack_entries = 128;
num_gs_stack_entries = 0;
num_es_stack_entries = 0;
break;
}
if ((rdev->family == CHIP_RV610) ||
(rdev->family == CHIP_RV620) ||
(rdev->family == CHIP_RS780) ||
(rdev->family == CHIP_RS880) ||
(rdev->family == CHIP_RV710))
sq_config = 0;
else
sq_config = VC_ENABLE;
sq_config |= (DX9_CONSTS |
ALU_INST_PREFER_VECTOR |
PS_PRIO(0) |
VS_PRIO(1) |
GS_PRIO(2) |
ES_PRIO(3));
sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(num_ps_gprs) |
NUM_VS_GPRS(num_vs_gprs) |
NUM_CLAUSE_TEMP_GPRS(num_temp_gprs));
sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(num_gs_gprs) |
NUM_ES_GPRS(num_es_gprs));
sq_thread_resource_mgmt = (NUM_PS_THREADS(num_ps_threads) |
NUM_VS_THREADS(num_vs_threads) |
NUM_GS_THREADS(num_gs_threads) |
NUM_ES_THREADS(num_es_threads));
sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(num_ps_stack_entries) |
NUM_VS_STACK_ENTRIES(num_vs_stack_entries));
sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(num_gs_stack_entries) |
NUM_ES_STACK_ENTRIES(num_es_stack_entries));
/* emit an IB pointing at default state */
dwords = ALIGN(rdev->r600_blit.state_len, 0x10);
gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.state_offset;
radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
radeon_ring_write(rdev, gpu_addr & 0xFFFFFFFC);
radeon_ring_write(rdev, upper_32_bits(gpu_addr) & 0xFF);
radeon_ring_write(rdev, dwords);
/* SQ config */
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 6));
radeon_ring_write(rdev, (SQ_CONFIG - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
radeon_ring_write(rdev, sq_config);
radeon_ring_write(rdev, sq_gpr_resource_mgmt_1);
radeon_ring_write(rdev, sq_gpr_resource_mgmt_2);
radeon_ring_write(rdev, sq_thread_resource_mgmt);
radeon_ring_write(rdev, sq_stack_resource_mgmt_1);
radeon_ring_write(rdev, sq_stack_resource_mgmt_2);
}
static inline uint32_t i2f(uint32_t input)
{
u32 result, i, exponent, fraction;
if ((input & 0x3fff) == 0)
result = 0; /* 0 is a special case */
else {
exponent = 140; /* exponent biased by 127; */
fraction = (input & 0x3fff) << 10; /* cheat and only
handle numbers below 2^^15 */
for (i = 0; i < 14; i++) {
if (fraction & 0x800000)
break;
else {
fraction = fraction << 1; /* keep
shifting left until top bit = 1 */
exponent = exponent - 1;
}
}
result = exponent << 23 | (fraction & 0x7fffff); /* mask
off top bit; assumed 1 */
}
return result;
}
int r600_blit_init(struct radeon_device *rdev)
{
u32 obj_size;
int r, dwords;
void *ptr;
u32 packet2s[16];
int num_packet2s = 0;
/* pin copy shader into vram if already initialized */
if (rdev->r600_blit.shader_obj)
goto done;
mutex_init(&rdev->r600_blit.mutex);
rdev->r600_blit.state_offset = 0;
if (rdev->family >= CHIP_RV770)
rdev->r600_blit.state_len = r7xx_default_size;
else
rdev->r600_blit.state_len = r6xx_default_size;
dwords = rdev->r600_blit.state_len;
while (dwords & 0xf) {
packet2s[num_packet2s++] = PACKET2(0);
dwords++;
}
obj_size = dwords * 4;
obj_size = ALIGN(obj_size, 256);
rdev->r600_blit.vs_offset = obj_size;
obj_size += r6xx_vs_size * 4;
obj_size = ALIGN(obj_size, 256);
rdev->r600_blit.ps_offset = obj_size;
obj_size += r6xx_ps_size * 4;
obj_size = ALIGN(obj_size, 256);
r = radeon_bo_create(rdev, NULL, obj_size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
&rdev->r600_blit.shader_obj);
if (r) {
DRM_ERROR("r600 failed to allocate shader\n");
return r;
}
DRM_DEBUG("r6xx blit allocated bo %08x vs %08x ps %08x\n",
obj_size,
rdev->r600_blit.vs_offset, rdev->r600_blit.ps_offset);
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (unlikely(r != 0))
return r;
r = radeon_bo_kmap(rdev->r600_blit.shader_obj, &ptr);
if (r) {
DRM_ERROR("failed to map blit object %d\n", r);
return r;
}
if (rdev->family >= CHIP_RV770)
memcpy_toio(ptr + rdev->r600_blit.state_offset,
r7xx_default_state, rdev->r600_blit.state_len * 4);
else
memcpy_toio(ptr + rdev->r600_blit.state_offset,
r6xx_default_state, rdev->r600_blit.state_len * 4);
if (num_packet2s)
memcpy_toio(ptr + rdev->r600_blit.state_offset + (rdev->r600_blit.state_len * 4),
packet2s, num_packet2s * 4);
memcpy(ptr + rdev->r600_blit.vs_offset, r6xx_vs, r6xx_vs_size * 4);
memcpy(ptr + rdev->r600_blit.ps_offset, r6xx_ps, r6xx_ps_size * 4);
radeon_bo_kunmap(rdev->r600_blit.shader_obj);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
done:
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (unlikely(r != 0))
return r;
r = radeon_bo_pin(rdev->r600_blit.shader_obj, RADEON_GEM_DOMAIN_VRAM,
&rdev->r600_blit.shader_gpu_addr);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
if (r) {
dev_err(rdev->dev, "(%d) pin blit object failed\n", r);
return r;
}
rdev->mc.active_vram_size = rdev->mc.real_vram_size;
return 0;
}
void r600_blit_fini(struct radeon_device *rdev)
{
int r;
rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
if (rdev->r600_blit.shader_obj == NULL)
return;
/* If we can't reserve the bo, unref should be enough to destroy
* it when it becomes idle.
*/
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (!r) {
radeon_bo_unpin(rdev->r600_blit.shader_obj);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
}
radeon_bo_unref(&rdev->r600_blit.shader_obj);
}
static int r600_vb_ib_get(struct radeon_device *rdev)
{
int r;
r = radeon_ib_get(rdev, &rdev->r600_blit.vb_ib);
if (r) {
DRM_ERROR("failed to get IB for vertex buffer\n");
return r;
}
rdev->r600_blit.vb_total = 64*1024;
rdev->r600_blit.vb_used = 0;
return 0;
}
static void r600_vb_ib_put(struct radeon_device *rdev)
{
radeon_fence_emit(rdev, rdev->r600_blit.vb_ib->fence);
radeon_ib_free(rdev, &rdev->r600_blit.vb_ib);
}
int r600_blit_prepare_copy(struct radeon_device *rdev, int size_bytes)
{
int r;
int ring_size, line_size;
int max_size;
/* loops of emits 64 + fence emit possible */
int dwords_per_loop = 76, num_loops;
r = r600_vb_ib_get(rdev);
if (r)
return r;
/* set_render_target emits 2 extra dwords on rv6xx */
if (rdev->family > CHIP_R600 && rdev->family < CHIP_RV770)
dwords_per_loop += 2;
/* 8 bpp vs 32 bpp for xfer unit */
if (size_bytes & 3)
line_size = 8192;
else
line_size = 8192*4;
max_size = 8192 * line_size;
/* major loops cover the max size transfer */
num_loops = ((size_bytes + max_size) / max_size);
/* minor loops cover the extra non aligned bits */
num_loops += ((size_bytes % line_size) ? 1 : 0);
/* calculate number of loops correctly */
ring_size = num_loops * dwords_per_loop;
/* set default + shaders */
ring_size += 40; /* shaders + def state */
ring_size += 10; /* fence emit for VB IB */
ring_size += 5; /* done copy */
ring_size += 10; /* fence emit for done copy */
r = radeon_ring_lock(rdev, ring_size);
if (r)
return r;
set_default_state(rdev); /* 14 */
set_shaders(rdev); /* 26 */
return 0;
}
void r600_blit_done_copy(struct radeon_device *rdev, struct radeon_fence *fence)
{
int r;
if (rdev->r600_blit.vb_ib)
r600_vb_ib_put(rdev);
if (fence)
r = radeon_fence_emit(rdev, fence);
radeon_ring_unlock_commit(rdev);
}
void r600_kms_blit_copy(struct radeon_device *rdev,
u64 src_gpu_addr, u64 dst_gpu_addr,
int size_bytes)
{
int max_bytes;
u64 vb_gpu_addr;
u32 *vb;
DRM_DEBUG("emitting copy %16llx %16llx %d %d\n", src_gpu_addr, dst_gpu_addr,
size_bytes, rdev->r600_blit.vb_used);
vb = (u32 *)(rdev->r600_blit.vb_ib->ptr + rdev->r600_blit.vb_used);
if ((size_bytes & 3) || (src_gpu_addr & 3) || (dst_gpu_addr & 3)) {
max_bytes = 8192;
while (size_bytes) {
int cur_size = size_bytes;
int src_x = src_gpu_addr & 255;
int dst_x = dst_gpu_addr & 255;
int h = 1;
src_gpu_addr = src_gpu_addr & ~255ULL;
dst_gpu_addr = dst_gpu_addr & ~255ULL;
if (!src_x && !dst_x) {
h = (cur_size / max_bytes);
if (h > 8192)
h = 8192;
if (h == 0)
h = 1;
else
cur_size = max_bytes;
} else {
if (cur_size > max_bytes)
cur_size = max_bytes;
if (cur_size > (max_bytes - dst_x))
cur_size = (max_bytes - dst_x);
if (cur_size > (max_bytes - src_x))
cur_size = (max_bytes - src_x);
}
if ((rdev->r600_blit.vb_used + 48) > rdev->r600_blit.vb_total) {
WARN_ON(1);
}
vb[0] = i2f(dst_x);
vb[1] = 0;
vb[2] = i2f(src_x);
vb[3] = 0;
vb[4] = i2f(dst_x);
vb[5] = i2f(h);
vb[6] = i2f(src_x);
vb[7] = i2f(h);
vb[8] = i2f(dst_x + cur_size);
vb[9] = i2f(h);
vb[10] = i2f(src_x + cur_size);
vb[11] = i2f(h);
/* src 9 */
set_tex_resource(rdev, FMT_8,
src_x + cur_size, h, src_x + cur_size,
src_gpu_addr);
/* 5 */
cp_set_surface_sync(rdev,
PACKET3_TC_ACTION_ENA, (src_x + cur_size * h), src_gpu_addr);
/* dst 23 */
set_render_target(rdev, COLOR_8,
dst_x + cur_size, h,
dst_gpu_addr);
/* scissors 12 */
set_scissors(rdev, dst_x, 0, dst_x + cur_size, h);
/* 14 */
vb_gpu_addr = rdev->r600_blit.vb_ib->gpu_addr + rdev->r600_blit.vb_used;
set_vtx_resource(rdev, vb_gpu_addr);
/* draw 10 */
draw_auto(rdev);
/* 5 */
cp_set_surface_sync(rdev,
PACKET3_CB_ACTION_ENA | PACKET3_CB0_DEST_BASE_ENA,
cur_size * h, dst_gpu_addr);
vb += 12;
rdev->r600_blit.vb_used += 12 * 4;
src_gpu_addr += cur_size * h;
dst_gpu_addr += cur_size * h;
size_bytes -= cur_size * h;
}
} else {
max_bytes = 8192 * 4;
while (size_bytes) {
int cur_size = size_bytes;
int src_x = (src_gpu_addr & 255);
int dst_x = (dst_gpu_addr & 255);
int h = 1;
src_gpu_addr = src_gpu_addr & ~255ULL;
dst_gpu_addr = dst_gpu_addr & ~255ULL;
if (!src_x && !dst_x) {
h = (cur_size / max_bytes);
if (h > 8192)
h = 8192;
if (h == 0)
h = 1;
else
cur_size = max_bytes;
} else {
if (cur_size > max_bytes)
cur_size = max_bytes;
if (cur_size > (max_bytes - dst_x))
cur_size = (max_bytes - dst_x);
if (cur_size > (max_bytes - src_x))
cur_size = (max_bytes - src_x);
}
if ((rdev->r600_blit.vb_used + 48) > rdev->r600_blit.vb_total) {
WARN_ON(1);
}
vb[0] = i2f(dst_x / 4);
vb[1] = 0;
vb[2] = i2f(src_x / 4);
vb[3] = 0;
vb[4] = i2f(dst_x / 4);
vb[5] = i2f(h);
vb[6] = i2f(src_x / 4);
vb[7] = i2f(h);
vb[8] = i2f((dst_x + cur_size) / 4);
vb[9] = i2f(h);
vb[10] = i2f((src_x + cur_size) / 4);
vb[11] = i2f(h);
/* src 9 */
set_tex_resource(rdev, FMT_8_8_8_8,
(src_x + cur_size) / 4,
h, (src_x + cur_size) / 4,
src_gpu_addr);
/* 5 */
cp_set_surface_sync(rdev,
PACKET3_TC_ACTION_ENA, (src_x + cur_size * h), src_gpu_addr);
/* dst 23 */
set_render_target(rdev, COLOR_8_8_8_8,
(dst_x + cur_size) / 4, h,
dst_gpu_addr);
/* scissors 12 */
set_scissors(rdev, (dst_x / 4), 0, (dst_x + cur_size / 4), h);
/* Vertex buffer setup 14 */
vb_gpu_addr = rdev->r600_blit.vb_ib->gpu_addr + rdev->r600_blit.vb_used;
set_vtx_resource(rdev, vb_gpu_addr);
/* draw 10 */
draw_auto(rdev);
/* 5 */
cp_set_surface_sync(rdev,
PACKET3_CB_ACTION_ENA | PACKET3_CB0_DEST_BASE_ENA,
cur_size * h, dst_gpu_addr);
/* 78 ring dwords per loop */
vb += 12;
rdev->r600_blit.vb_used += 12 * 4;
src_gpu_addr += cur_size * h;
dst_gpu_addr += cur_size * h;
size_bytes -= cur_size * h;
}
}
}
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