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/*
* Copyright 2012 Advanced Micro Devices, 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 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "radeon.h"
static const unsigned MicroBlockTable[5][3][2] = {
/*linear tiled square-tiled */
{{32, 1}, {8, 4}, {0, 0}}, /* 8 bits per pixel */
{{16, 1}, {8, 2}, {4, 4}}, /* 16 bits per pixel */
{{ 8, 1}, {4, 2}, {0, 0}}, /* 32 bits per pixel */
{{ 4, 1}, {0, 0}, {2, 2}}, /* 64 bits per pixel */
{{ 2, 1}, {0, 0}, {0, 0}} /* 128 bits per pixel */
};
/* Return true if macrotiling can be enabled */
static Bool RADEONMacroSwitch(int width, int height, int bpp,
uint32_t flags, Bool rv350_mode)
{
unsigned tilew, tileh, microtiled, logbpp;
logbpp = RADEONLog2(bpp / 8);
if (logbpp > 4)
return 0;
microtiled = !!(flags & RADEON_TILING_MICRO);
tilew = MicroBlockTable[logbpp][microtiled][0] * 8;
tileh = MicroBlockTable[logbpp][microtiled][1] * 8;
/* See TX_FILTER1_n.MACRO_SWITCH. */
if (rv350_mode) {
return width >= tilew && height >= tileh;
} else {
return width > tilew && height > tileh;
}
}
/* Calculate appropriate tiling and pitch for a pixmap and allocate a BO that
* can hold it.
*/
struct radeon_bo*
radeon_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width, int height, int depth,
int usage_hint, int bitsPerPixel, int *new_pitch,
struct radeon_surface *new_surface, uint32_t *new_tiling)
{
RADEONInfoPtr info = RADEONPTR(pScrn);
int pitch, base_align;
uint32_t size, heighta;
int cpp = bitsPerPixel / 8;
uint32_t tiling = 0;
struct radeon_surface surface;
struct radeon_bo *bo;
int domain = RADEON_GEM_DOMAIN_VRAM;
if (usage_hint) {
if (info->allowColorTiling) {
if (usage_hint & RADEON_CREATE_PIXMAP_TILING_MACRO)
tiling |= RADEON_TILING_MACRO;
if (usage_hint & RADEON_CREATE_PIXMAP_TILING_MICRO)
tiling |= RADEON_TILING_MICRO;
}
if (usage_hint & RADEON_CREATE_PIXMAP_DEPTH)
tiling |= RADEON_TILING_MACRO | RADEON_TILING_MICRO;
#ifdef CREATE_PIXMAP_USAGE_SHARED
if ((usage_hint & 0xffff) == CREATE_PIXMAP_USAGE_SHARED) {
tiling = 0;
domain = RADEON_GEM_DOMAIN_GTT;
}
#endif
}
/* Small pixmaps must not be macrotiled on R300, hw cannot sample them
* correctly because samplers automatically switch to macrolinear. */
if (info->ChipFamily >= CHIP_FAMILY_R300 &&
info->ChipFamily <= CHIP_FAMILY_RS740 &&
(tiling & RADEON_TILING_MACRO) &&
!RADEONMacroSwitch(width, height, bitsPerPixel, tiling,
info->ChipFamily >= CHIP_FAMILY_RV350)) {
tiling &= ~RADEON_TILING_MACRO;
}
heighta = RADEON_ALIGN(height, drmmode_get_height_align(pScrn, tiling));
pitch = RADEON_ALIGN(width, drmmode_get_pitch_align(pScrn, cpp, tiling)) * cpp;
base_align = drmmode_get_base_align(pScrn, cpp, tiling);
size = RADEON_ALIGN(heighta * pitch, RADEON_GPU_PAGE_SIZE);
memset(&surface, 0, sizeof(struct radeon_surface));
if (info->ChipFamily >= CHIP_FAMILY_R600 && info->surf_man) {
if (width) {
surface.npix_x = width;
/* need to align height to 8 for old kernel */
surface.npix_y = RADEON_ALIGN(height, 8);
surface.npix_z = 1;
surface.blk_w = 1;
surface.blk_h = 1;
surface.blk_d = 1;
surface.array_size = 1;
surface.last_level = 0;
surface.bpe = cpp;
surface.nsamples = 1;
if (height < 64) {
/* disable 2d tiling for small surface to work around
* the fact that ddx align height to 8 pixel for old
* obscure reason i can't remember
*/
tiling &= ~RADEON_TILING_MACRO;
}
surface.flags = RADEON_SURF_SCANOUT;
surface.flags |= RADEON_SURF_SET(RADEON_SURF_TYPE_2D, TYPE);
surface.flags |= RADEON_SURF_SET(RADEON_SURF_MODE_LINEAR, MODE);
if ((tiling & RADEON_TILING_MICRO)) {
surface.flags = RADEON_SURF_CLR(surface.flags, MODE);
surface.flags |= RADEON_SURF_SET(RADEON_SURF_MODE_1D, MODE);
}
if ((tiling & RADEON_TILING_MACRO)) {
surface.flags = RADEON_SURF_CLR(surface.flags, MODE);
surface.flags |= RADEON_SURF_SET(RADEON_SURF_MODE_2D, MODE);
}
if (usage_hint & RADEON_CREATE_PIXMAP_SZBUFFER) {
surface.flags |= RADEON_SURF_ZBUFFER;
surface.flags |= RADEON_SURF_SBUFFER;
}
if (radeon_surface_best(info->surf_man, &surface)) {
return NULL;
}
if (radeon_surface_init(info->surf_man, &surface)) {
return NULL;
}
size = surface.bo_size;
base_align = surface.bo_alignment;
pitch = surface.level[0].pitch_bytes;
tiling = 0;
switch (surface.level[0].mode) {
case RADEON_SURF_MODE_2D:
tiling |= RADEON_TILING_MACRO;
tiling |= surface.bankw << RADEON_TILING_EG_BANKW_SHIFT;
tiling |= surface.bankh << RADEON_TILING_EG_BANKH_SHIFT;
tiling |= surface.mtilea << RADEON_TILING_EG_MACRO_TILE_ASPECT_SHIFT;
tiling |= eg_tile_split(surface.tile_split) << RADEON_TILING_EG_TILE_SPLIT_SHIFT;
tiling |= eg_tile_split(surface.stencil_tile_split) << RADEON_TILING_EG_STENCIL_TILE_SPLIT_SHIFT;
break;
case RADEON_SURF_MODE_1D:
tiling |= RADEON_TILING_MICRO;
break;
default:
break;
}
}
}
bo = radeon_bo_open(info->bufmgr, 0, size, base_align,
domain, 0);
if (bo && tiling && radeon_bo_set_tiling(bo, tiling, pitch) == 0)
*new_tiling = tiling;
*new_surface = surface;
*new_pitch = pitch;
return bo;
}
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