/* use staging system buffer */
ILO_TRANSFER_MAP_SW_CONVERT,
+ ILO_TRANSFER_MAP_SW_ZS,
};
struct ilo_transfer {
}
if (tex && !(usage & PIPE_TRANSFER_MAP_DIRECTLY)) {
+ if (tex->separate_s8 || tex->bo_format == PIPE_FORMAT_S8_UINT)
+ xfer->method = ILO_TRANSFER_MAP_SW_ZS;
/* need to convert on-the-fly */
- if (tex->bo_format != tex->base.format)
+ else if (tex->bo_format != tex->base.format)
xfer->method = ILO_TRANSFER_MAP_SW_CONVERT;
}
return true;
}
-static unsigned
-tex_get_box_offset(const struct ilo_texture *tex, unsigned level,
- const struct pipe_box *box)
+static void
+tex_get_box_origin(const struct ilo_texture *tex,
+ unsigned level, unsigned slice,
+ const struct pipe_box *box,
+ unsigned *mem_x, unsigned *mem_y)
{
unsigned x, y;
- x = tex->slice_offsets[level][box->z].x;
- y = tex->slice_offsets[level][box->z].y;
-
- x += box->x;
- y += box->y;
+ x = tex->slice_offsets[level][slice + box->z].x + box->x;
+ y = tex->slice_offsets[level][slice + box->z].y + box->y;
- /* in blocks */
assert(x % tex->block_width == 0 && y % tex->block_height == 0);
- x /= tex->block_width;
- y /= tex->block_height;
- return y * tex->bo_stride + x * tex->bo_cpp;
+ *mem_x = x / tex->block_width * tex->bo_cpp;
+ *mem_y = y / tex->block_height;
+}
+
+static unsigned
+tex_get_box_offset(const struct ilo_texture *tex, unsigned level,
+ const struct pipe_box *box)
+{
+ unsigned mem_x, mem_y;
+
+ tex_get_box_origin(tex, level, 0, box, &mem_x, &mem_y);
+
+ return mem_y * tex->bo_stride + mem_x;
}
static unsigned
return (qpitch / tex->block_height) * tex->bo_stride;
}
+static unsigned
+tex_tile_x_swizzle(unsigned addr)
+{
+ /*
+ * From the Ivy Bridge PRM, volume 1 part 2, page 24:
+ *
+ * "As shown in the tiling algorithm, the new address bit[6] should be:
+ *
+ * Address bit[6] <= TiledAddr bit[6] XOR
+ * TiledAddr bit[9] XOR
+ * TiledAddr bit[10]"
+ */
+ return addr ^ (((addr >> 3) ^ (addr >> 4)) & 0x40);
+}
+
+static unsigned
+tex_tile_y_swizzle(unsigned addr)
+{
+ /*
+ * From the Ivy Bridge PRM, volume 1 part 2, page 24:
+ *
+ * "As shown in the tiling algorithm, The new address bit[6] becomes:
+ *
+ * Address bit[6] <= TiledAddr bit[6] XOR
+ * TiledAddr bit[9]"
+ */
+ return addr ^ ((addr >> 3) & 0x40);
+}
+
+static unsigned
+tex_tile_x_offset(unsigned mem_x, unsigned mem_y,
+ unsigned tiles_per_row, bool swizzle)
+{
+ /*
+ * From the Sandy Bridge PRM, volume 1 part 2, page 21, we know that a
+ * X-major tile has 8 rows and 32 OWord columns (512 bytes). Tiles in the
+ * tiled region are numbered in row-major order, starting from zero. The
+ * tile number can thus be calculated as follows:
+ *
+ * tile = (mem_y / 8) * tiles_per_row + (mem_x / 512)
+ *
+ * OWords in that tile are also numbered in row-major order, starting from
+ * zero. The OWord number can thus be calculated as follows:
+ *
+ * oword = (mem_y % 8) * 32 + ((mem_x % 512) / 16)
+ *
+ * and the tiled offset is
+ *
+ * offset = tile * 4096 + oword * 16 + (mem_x % 16)
+ * = tile * 4096 + (mem_y % 8) * 512 + (mem_x % 512)
+ */
+ unsigned tile, offset;
+
+ tile = (mem_y >> 3) * tiles_per_row + (mem_x >> 9);
+ offset = tile << 12 | (mem_y & 0x7) << 9 | (mem_x & 0x1ff);
+
+ return (swizzle) ? tex_tile_x_swizzle(offset) : offset;
+}
+
+static unsigned
+tex_tile_y_offset(unsigned mem_x, unsigned mem_y,
+ unsigned tiles_per_row, bool swizzle)
+{
+ /*
+ * From the Sandy Bridge PRM, volume 1 part 2, page 22, we know that a
+ * Y-major tile has 32 rows and 8 OWord columns (128 bytes). Tiles in the
+ * tiled region are numbered in row-major order, starting from zero. The
+ * tile number can thus be calculated as follows:
+ *
+ * tile = (mem_y / 32) * tiles_per_row + (mem_x / 128)
+ *
+ * OWords in that tile are numbered in column-major order, starting from
+ * zero. The OWord number can thus be calculated as follows:
+ *
+ * oword = ((mem_x % 128) / 16) * 32 + (mem_y % 32)
+ *
+ * and the tiled offset is
+ *
+ * offset = tile * 4096 + oword * 16 + (mem_x % 16)
+ */
+ unsigned tile, oword, offset;
+
+ tile = (mem_y >> 5) * tiles_per_row + (mem_x >> 7);
+ oword = (mem_x & 0x70) << 1 | (mem_y & 0x1f);
+ offset = tile << 12 | oword << 4 | (mem_x & 0xf);
+
+ return (swizzle) ? tex_tile_y_swizzle(offset) : offset;
+}
+
+static unsigned
+tex_tile_w_offset(unsigned mem_x, unsigned mem_y,
+ unsigned tiles_per_row, bool swizzle)
+{
+ /*
+ * From the Sandy Bridge PRM, volume 1 part 2, page 23, we know that a
+ * W-major tile has 8 8x8-block rows and 8 8x8-block columns. Tiles in the
+ * tiled region are numbered in row-major order, starting from zero. The
+ * tile number can thus be calculated as follows:
+ *
+ * tile = (mem_y / 64) * tiles_per_row + (mem_x / 64)
+ *
+ * 8x8-blocks in that tile are numbered in column-major order, starting
+ * from zero. The 8x8-block number can thus be calculated as follows:
+ *
+ * blk8 = ((mem_x % 64) / 8) * 8 + ((mem_y % 64) / 8)
+ *
+ * Each 8x8-block is divided into 4 4x4-blocks, in row-major order. Each
+ * 4x4-block is further divided into 4 2x2-blocks, also in row-major order.
+ * We have
+ *
+ * blk4 = (((mem_y % 64) / 4) & 1) * 2 + (((mem_x % 64) / 4) & 1)
+ * blk2 = (((mem_y % 64) / 2) & 1) * 2 + (((mem_x % 64) / 2) & 1)
+ * blk1 = (((mem_y % 64) ) & 1) * 2 + (((mem_x % 64) ) & 1)
+ *
+ * and the tiled offset is
+ *
+ * offset = tile * 4096 + blk8 * 64 + blk4 * 16 + blk2 * 4 + blk1
+ */
+ unsigned tile, blk8, blk4, blk2, blk1, offset;
+
+ tile = (mem_y >> 6) * tiles_per_row + (mem_x >> 6);
+ blk8 = ((mem_x >> 3) & 0x7) << 3 | ((mem_y >> 3) & 0x7);
+ blk4 = ((mem_y >> 2) & 0x1) << 1 | ((mem_x >> 2) & 0x1);
+ blk2 = ((mem_y >> 1) & 0x1) << 1 | ((mem_x >> 1) & 0x1);
+ blk1 = ((mem_y ) & 0x1) << 1 | ((mem_x ) & 0x1);
+ offset = tile << 12 | blk8 << 6 | blk4 << 4 | blk2 << 2 | blk1;
+
+ return (swizzle) ? tex_tile_y_swizzle(offset) : offset;
+}
+
+static unsigned
+tex_tile_none_offset(unsigned mem_x, unsigned mem_y,
+ unsigned tiles_per_row, bool swizzle)
+{
+ return mem_y * tiles_per_row + mem_x;
+}
+
+typedef unsigned (*tex_tile_offset_func)(unsigned mem_x, unsigned mem_y,
+ unsigned tiles_per_row,
+ bool swizzle);
+
+static tex_tile_offset_func
+tex_tile_choose_offset_func(const struct ilo_texture *tex,
+ unsigned *tiles_per_row)
+{
+ switch (tex->tiling) {
+ case INTEL_TILING_X:
+ *tiles_per_row = tex->bo_stride / 512;
+ return tex_tile_x_offset;
+ case INTEL_TILING_Y:
+ *tiles_per_row = tex->bo_stride / 128;
+ return tex_tile_y_offset;
+ case INTEL_TILING_NONE:
+ default:
+ /* W-tiling */
+ if (tex->bo_format == PIPE_FORMAT_S8_UINT) {
+ *tiles_per_row = tex->bo_stride / 64;
+ return tex_tile_w_offset;
+ }
+ else {
+ *tiles_per_row = tex->bo_stride;
+ return tex_tile_none_offset;
+ }
+ }
+}
+
+static void
+tex_staging_sys_zs_read(struct ilo_context *ilo,
+ struct ilo_texture *tex,
+ const struct ilo_transfer *xfer)
+{
+ const bool swizzle = ilo->dev->has_address_swizzling;
+ const struct pipe_box *box = &xfer->base.box;
+ const uint8_t *src = tex->bo->get_virtual(tex->bo);
+ tex_tile_offset_func tile_offset;
+ unsigned tiles_per_row;
+ int slice;
+
+ tile_offset = tex_tile_choose_offset_func(tex, &tiles_per_row);
+
+ assert(tex->block_width == 1 && tex->block_height == 1);
+
+ if (tex->separate_s8) {
+ struct ilo_texture *s8_tex = tex->separate_s8;
+ const uint8_t *s8_src = s8_tex->bo->get_virtual(s8_tex->bo);
+ tex_tile_offset_func s8_tile_offset;
+ unsigned s8_tiles_per_row;
+ int dst_cpp, dst_s8_pos, src_cpp_used;
+
+ s8_tile_offset = tex_tile_choose_offset_func(s8_tex, &s8_tiles_per_row);
+
+ if (tex->base.format == PIPE_FORMAT_Z24_UNORM_S8_UINT) {
+ assert(tex->bo_format == PIPE_FORMAT_Z24X8_UNORM);
+
+ dst_cpp = 4;
+ dst_s8_pos = 3;
+ src_cpp_used = 3;
+ }
+ else {
+ assert(tex->base.format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT);
+ assert(tex->bo_format == PIPE_FORMAT_Z32_FLOAT);
+
+ dst_cpp = 8;
+ dst_s8_pos = 4;
+ src_cpp_used = 4;
+ }
+
+ for (slice = 0; slice < box->depth; slice++) {
+ unsigned mem_x, mem_y, s8_mem_x, s8_mem_y;
+ uint8_t *dst;
+ int i, j;
+
+ tex_get_box_origin(tex, xfer->base.level, slice,
+ box, &mem_x, &mem_y);
+ tex_get_box_origin(s8_tex, xfer->base.level, slice,
+ box, &s8_mem_x, &s8_mem_y);
+
+ dst = xfer->staging_sys + xfer->base.layer_stride * slice;
+
+ for (i = 0; i < box->height; i++) {
+ unsigned x = mem_x, s8_x = s8_mem_x;
+ uint8_t *d = dst;
+
+ for (j = 0; j < box->width; j++) {
+ const unsigned offset =
+ tile_offset(x, mem_y, tiles_per_row, swizzle);
+ const unsigned s8_offset =
+ s8_tile_offset(s8_x, s8_mem_y, s8_tiles_per_row, swizzle);
+
+ memcpy(d, src + offset, src_cpp_used);
+ d[dst_s8_pos] = s8_src[s8_offset];
+
+ d += dst_cpp;
+ x += tex->bo_cpp;
+ s8_x++;
+ }
+
+ dst += xfer->base.stride;
+ mem_y++;
+ s8_mem_y++;
+ }
+ }
+ }
+ else {
+ assert(tex->bo_format == PIPE_FORMAT_S8_UINT);
+
+ for (slice = 0; slice < box->depth; slice++) {
+ unsigned mem_x, mem_y;
+ uint8_t *dst;
+ int i, j;
+
+ tex_get_box_origin(tex, xfer->base.level, slice,
+ box, &mem_x, &mem_y);
+
+ dst = xfer->staging_sys + xfer->base.layer_stride * slice;
+
+ for (i = 0; i < box->height; i++) {
+ unsigned x = mem_x;
+ uint8_t *d = dst;
+
+ for (j = 0; j < box->width; j++) {
+ const unsigned offset =
+ tile_offset(x, mem_y, tiles_per_row, swizzle);
+
+ *d = src[offset];
+
+ d++;
+ x++;
+ }
+
+ dst += xfer->base.stride;
+ mem_y++;
+ }
+ }
+ }
+}
+
+static void
+tex_staging_sys_zs_write(struct ilo_context *ilo,
+ struct ilo_texture *tex,
+ const struct ilo_transfer *xfer)
+{
+ const bool swizzle = ilo->dev->has_address_swizzling;
+ const struct pipe_box *box = &xfer->base.box;
+ uint8_t *dst = tex->bo->get_virtual(tex->bo);
+ tex_tile_offset_func tile_offset;
+ unsigned tiles_per_row;
+ int slice;
+
+ tile_offset = tex_tile_choose_offset_func(tex, &tiles_per_row);
+
+ assert(tex->block_width == 1 && tex->block_height == 1);
+
+ if (tex->separate_s8) {
+ struct ilo_texture *s8_tex = tex->separate_s8;
+ uint8_t *s8_dst = s8_tex->bo->get_virtual(s8_tex->bo);
+ tex_tile_offset_func s8_tile_offset;
+ unsigned s8_tiles_per_row;
+ int src_cpp, src_s8_pos, dst_cpp_used;
+
+ s8_tile_offset = tex_tile_choose_offset_func(s8_tex, &s8_tiles_per_row);
+
+ if (tex->base.format == PIPE_FORMAT_Z24_UNORM_S8_UINT) {
+ assert(tex->bo_format == PIPE_FORMAT_Z24X8_UNORM);
+
+ src_cpp = 4;
+ src_s8_pos = 3;
+ dst_cpp_used = 3;
+ }
+ else {
+ assert(tex->base.format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT);
+ assert(tex->bo_format == PIPE_FORMAT_Z32_FLOAT);
+
+ src_cpp = 8;
+ src_s8_pos = 4;
+ dst_cpp_used = 4;
+ }
+
+ for (slice = 0; slice < box->depth; slice++) {
+ unsigned mem_x, mem_y, s8_mem_x, s8_mem_y;
+ const uint8_t *src;
+ int i, j;
+
+ tex_get_box_origin(tex, xfer->base.level, slice,
+ box, &mem_x, &mem_y);
+ tex_get_box_origin(s8_tex, xfer->base.level, slice,
+ box, &s8_mem_x, &s8_mem_y);
+
+ src = xfer->staging_sys + xfer->base.layer_stride * slice;
+
+ for (i = 0; i < box->height; i++) {
+ unsigned x = mem_x, s8_x = s8_mem_x;
+ const uint8_t *s = src;
+
+ for (j = 0; j < box->width; j++) {
+ const unsigned offset =
+ tile_offset(x, mem_y, tiles_per_row, swizzle);
+ const unsigned s8_offset =
+ s8_tile_offset(s8_x, s8_mem_y, s8_tiles_per_row, swizzle);
+
+ memcpy(dst + offset, s, dst_cpp_used);
+ s8_dst[s8_offset] = s[src_s8_pos];
+
+ s += src_cpp;
+ x += tex->bo_cpp;
+ s8_x++;
+ }
+
+ src += xfer->base.stride;
+ mem_y++;
+ s8_mem_y++;
+ }
+ }
+ }
+ else {
+ assert(tex->bo_format == PIPE_FORMAT_S8_UINT);
+
+ for (slice = 0; slice < box->depth; slice++) {
+ unsigned mem_x, mem_y;
+ const uint8_t *src;
+ int i, j;
+
+ tex_get_box_origin(tex, xfer->base.level, slice,
+ box, &mem_x, &mem_y);
+
+ src = xfer->staging_sys + xfer->base.layer_stride * slice;
+
+ for (i = 0; i < box->height; i++) {
+ unsigned x = mem_x;
+ const uint8_t *s = src;
+
+ for (j = 0; j < box->width; j++) {
+ const unsigned offset =
+ tile_offset(x, mem_y, tiles_per_row, swizzle);
+
+ dst[offset] = *s;
+
+ s++;
+ x++;
+ }
+
+ src += xfer->base.stride;
+ mem_y++;
+ }
+ }
+ }
+}
+
static void
tex_staging_sys_convert_write(struct ilo_context *ilo,
struct ilo_texture *tex,
}
}
+static bool
+tex_staging_sys_map_bo(const struct ilo_context *ilo,
+ const struct ilo_texture *tex,
+ bool for_read_back, bool linear_view)
+{
+ const bool prefer_cpu = (ilo->dev->has_llc || for_read_back);
+ int err;
+
+ if (prefer_cpu && (tex->tiling == INTEL_TILING_NONE || !linear_view))
+ err = tex->bo->map(tex->bo, !for_read_back);
+ else
+ err = tex->bo->map_gtt(tex->bo);
+
+ if (!tex->separate_s8)
+ return !err;
+
+ err = tex->separate_s8->bo->map(tex->separate_s8->bo, !for_read_back);
+ if (err)
+ tex->bo->unmap(tex->bo);
+
+ return !err;
+}
+
+static void
+tex_staging_sys_unmap_bo(const struct ilo_context *ilo,
+ const struct ilo_texture *tex)
+{
+ if (tex->separate_s8)
+ tex->separate_s8->bo->unmap(tex->separate_s8->bo);
+
+ tex->bo->unmap(tex->bo);
+}
+
static void
tex_staging_sys_unmap(struct ilo_context *ilo,
struct ilo_texture *tex,
struct ilo_transfer *xfer)
{
- int err;
+ bool success;
if (!(xfer->base.usage & PIPE_TRANSFER_WRITE)) {
FREE(xfer->staging_sys);
return;
}
- if (tex->tiling == INTEL_TILING_NONE && ilo->dev->has_llc)
- err = tex->bo->map(tex->bo, true);
- else
- err = tex->bo->map_gtt(tex->bo);
-
- if (err) {
- ilo_err("failed to map resource for moving staging data\n");
- FREE(xfer->staging_sys);
- return;
- }
-
switch (xfer->method) {
case ILO_TRANSFER_MAP_SW_CONVERT:
- tex_staging_sys_convert_write(ilo, tex, xfer);
+ success = tex_staging_sys_map_bo(ilo, tex, false, true);
+ if (success) {
+ tex_staging_sys_convert_write(ilo, tex, xfer);
+ tex_staging_sys_unmap_bo(ilo, tex);
+ }
+ break;
+ case ILO_TRANSFER_MAP_SW_ZS:
+ success = tex_staging_sys_map_bo(ilo, tex, false, false);
+ if (success) {
+ tex_staging_sys_zs_write(ilo, tex, xfer);
+ tex_staging_sys_unmap_bo(ilo, tex);
+ }
break;
default:
assert(!"unknown mapping method");
+ success = false;
break;
}
- tex->bo->unmap(tex->bo);
+ if (!success)
+ ilo_err("failed to map resource for moving staging data\n");
+
FREE(xfer->staging_sys);
}
const size_t stride = util_format_get_stride(tex->base.format, box->width);
const size_t size =
util_format_get_2d_size(tex->base.format, stride, box->height);
- bool read_back = false;
+ bool read_back = false, success;
xfer->staging_sys = MALLOC(size * box->depth);
if (!xfer->staging_sys)
if (!read_back)
return true;
- /* TODO */
- return false;
+ switch (xfer->method) {
+ case ILO_TRANSFER_MAP_SW_CONVERT:
+ assert(!"no on-the-fly format conversion for mapping");
+ success = false;
+ break;
+ case ILO_TRANSFER_MAP_SW_ZS:
+ success = tex_staging_sys_map_bo(ilo, tex, true, false);
+ if (success) {
+ tex_staging_sys_zs_read(ilo, tex, xfer);
+ tex_staging_sys_unmap_bo(ilo, tex);
+ }
+ break;
+ default:
+ assert(!"unknown mapping method");
+ success = false;
+ break;
+ }
+
+ return success;
}
static void
success = tex_direct_map(ilo, tex, xfer);
break;
case ILO_TRANSFER_MAP_SW_CONVERT:
+ case ILO_TRANSFER_MAP_SW_ZS:
success = tex_staging_sys_map(ilo, tex, xfer);
break;
default:
tex_direct_unmap(ilo, tex, xfer);
break;
case ILO_TRANSFER_MAP_SW_CONVERT:
+ case ILO_TRANSFER_MAP_SW_ZS:
tex_staging_sys_unmap(ilo, tex, xfer);
break;
default:
projects / mesa.git / commitdiff