/* Calculate appropriate pitch for a pixmap and allocate a BO that can hold it.
*/
struct amdgpu_buffer *amdgpu_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width,
int height, int depth, int usage_hint,
int bitsPerPixel, int *new_pitch)
{
AMDGPUInfoPtr info = AMDGPUPTR(pScrn);
struct amdgpu_buffer *pixmap_buffer;
if (info->gbm) {
uint32_t bo_use = GBM_BO_USE_RENDERING;
uint32_t gbm_format;
switch (depth) {
#ifdef GBM_FORMAT_R8
case 8:
gbm_format = GBM_FORMAT_R8;
break;
#endif
case 16:
gbm_format = GBM_FORMAT_RGB565;
break;
case 32:
gbm_format = GBM_FORMAT_ARGB8888;
break;
case 24:
if (bitsPerPixel == 32) {
gbm_format = GBM_FORMAT_XRGB8888;
break;
}
/* fall through */
default:
ErrorF("%s: Unsupported depth/bpp %d/%d\n", __func__,
depth, bitsPerPixel);
return NULL;
}
pixmap_buffer = (struct amdgpu_buffer *)calloc(1, sizeof(struct amdgpu_buffer));
if (!pixmap_buffer) {
return NULL;
}
pixmap_buffer->ref_count = 1;
if ( bitsPerPixel == pScrn->bitsPerPixel)
bo_use |= GBM_BO_USE_SCANOUT;
#ifdef CREATE_PIXMAP_USAGE_SHARED
if (usage_hint == CREATE_PIXMAP_USAGE_SHARED) {
/* XXX: Need to tell GBM to disable tiling in this case */
}
#endif
if (usage_hint & AMDGPU_CREATE_PIXMAP_LINEAR) {
bo_use |= GBM_BO_USE_LINEAR;
}
pixmap_buffer->bo.gbm = gbm_bo_create(info->gbm, width, height,
gbm_format,
bo_use);
if (!pixmap_buffer->bo.gbm) {
free(pixmap_buffer);
return NULL;
}
pixmap_buffer->flags |= AMDGPU_BO_FLAGS_GBM;
if (new_pitch)
*new_pitch = gbm_bo_get_stride(pixmap_buffer->bo.gbm);
} else {
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(pScrn);
unsigned cpp = (bitsPerPixel + 7) / 8;
unsigned pitch = cpp *
AMDGPU_ALIGN(width, drmmode_get_pitch_align(pScrn, cpp));
pixmap_buffer = amdgpu_bo_open(pAMDGPUEnt->pDev, pitch * height,
4096, AMDGPU_GEM_DOMAIN_VRAM);
if (new_pitch)
*new_pitch = pitch;
}
return pixmap_buffer;
}
/* 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 < 128) {
/* 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;
/* we are requiring a recent enough libdrm version */
surface.flags |= RADEON_SURF_HAS_TILE_MODE_INDEX;
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;
}
