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freedreno/fdl6: Add an interface for setting up buffer descriptors.

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Buffers don't need all the layout stuff that image views do, so it's
easier to have a separate interface for generating them.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13635>
This commit is contained in:
Emma Anholt
2021-10-19 11:42:47 -07:00
committed by Marge Bot
parent 7b578c1249
commit aa3074e5be
2 changed files with 29 additions and 0 deletions
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26
src/freedreno/fdl/fd6_view.c
View File

@@ -344,3 +344,29 @@ fdl6_view_init(struct fdl6_view *view, const struct fdl_layout **layouts,
A6XX_RB_BLIT_DST_INFO_COLOR_SWAP(color_swap) |
COND(ubwc_enabled, A6XX_RB_BLIT_DST_INFO_FLAGS);
}
void
fdl6_buffer_view_init(uint32_t *descriptor, enum pipe_format format,
const uint8_t *swiz, uint64_t iova, uint32_t size)
{
unsigned elements = size / util_format_get_blocksize(format);
struct fdl_view_args args = {
.format = format,
.swiz = {swiz[0], swiz[1], swiz[2], swiz[3]},
};
memset(descriptor, 0, 4 * FDL6_TEX_CONST_DWORDS);
descriptor[0] =
A6XX_TEX_CONST_0_TILE_MODE(TILE6_LINEAR) |
A6XX_TEX_CONST_0_SWAP(fd6_texture_swap(format, TILE6_LINEAR)) |
A6XX_TEX_CONST_0_FMT(fd6_texture_format(format, TILE6_LINEAR)) |
A6XX_TEX_CONST_0_MIPLVLS(0) | fdl6_texswiz(&args, false) |
COND(util_format_is_srgb(format), A6XX_TEX_CONST_0_SRGB);
descriptor[1] = A6XX_TEX_CONST_1_WIDTH(elements & ((1 << 15) - 1)) |
A6XX_TEX_CONST_1_HEIGHT(elements >> 15);
descriptor[2] = A6XX_TEX_CONST_2_UNK4 | A6XX_TEX_CONST_2_UNK31;
descriptor[4] = iova;
descriptor[5] = iova >> 32;
}

3
src/freedreno/fdl/freedreno_layout.h
View File

@@ -316,5 +316,8 @@ struct fdl6_view {
void
fdl6_view_init(struct fdl6_view *view, const struct fdl_layout **layouts,
const struct fdl_view_args *args, bool has_z24uint_s8uint);
void
fdl6_buffer_view_init(uint32_t *descriptor, enum pipe_format format,
const uint8_t *swiz, uint64_t iova, uint32_t size);
#endif /* FREEDRENO_LAYOUT_H_ */