}
}
+/**
+ * Calculate the pitch between physical array slices, in units of rows of
+ * surface elements.
+ */
+static uint32_t
+isl_calc_array_pitch_el_rows(const struct isl_device *dev,
+ const struct isl_surf_init_info *restrict info,
+ const struct isl_tile_info *tile_info,
+ enum isl_dim_layout dim_layout,
+ enum isl_array_pitch_span array_pitch_span,
+ const struct isl_extent3d *image_align_sa,
+ const struct isl_extent4d *phys_level0_sa,
+ const struct isl_extent2d *phys_slice0_sa)
+{
+ const struct isl_format_layout *fmtl = isl_format_get_layout(info->format);
+ uint32_t pitch_sa_rows = 0;
+
+ switch (dim_layout) {
+ case ISL_DIM_LAYOUT_GEN9_1D:
+ /* Each row is an array slice */
+ pitch_sa_rows = 1;
+ break;
+ case ISL_DIM_LAYOUT_GEN4_2D:
+ switch (array_pitch_span) {
+ case ISL_ARRAY_PITCH_SPAN_COMPACT:
+ pitch_sa_rows = isl_align_npot(phys_slice0_sa->h, image_align_sa->h);
+ break;
+ case ISL_ARRAY_PITCH_SPAN_FULL: {
+ /* The QPitch equation is found in the Broadwell PRM >> Volume 5:
+ * Memory Views >> Common Surface Formats >> Surface Layout >> 2D
+ * Surfaces >> Surface Arrays.
+ */
+ uint32_t H0_sa = phys_level0_sa->h;
+ uint32_t H1_sa = isl_minify(H0_sa, 1);
+
+ uint32_t h0_sa = isl_align_npot(H0_sa, image_align_sa->h);
+ uint32_t h1_sa = isl_align_npot(H1_sa, image_align_sa->h);
+
+ uint32_t m;
+ if (ISL_DEV_GEN(dev) >= 7) {
+ /* The QPitch equation changed slightly in Ivybridge. */
+ m = 12;
+ } else {
+ m = 11;
+ }
+
+ pitch_sa_rows = h0_sa + h1_sa + (m * image_align_sa->h);
+
+ if (ISL_DEV_GEN(dev) == 6 && info->samples > 1 &&
+ (info->height % 4 == 1)) {
+ /* [SNB] Errata from the Sandy Bridge PRM >> Volume 4 Part 1:
+ * Graphics Core >> Section 7.18.3.7: Surface Arrays:
+ *
+ * [SNB] Errata: Sampler MSAA Qpitch will be 4 greater than
+ * the value calculated in the equation above , for every
+ * other odd Surface Height starting from 1 i.e. 1,5,9,13.
+ *
+ * XXX(chadv): Is the errata natural corollary of the physical
+ * layout of interleaved samples?
+ */
+ pitch_sa_rows += 4;
+ }
+
+ pitch_sa_rows = isl_align_npot(pitch_sa_rows, fmtl->bh);
+ } /* end case */
+ break;
+ }
+ break;
+ case ISL_DIM_LAYOUT_GEN4_3D:
+ assert(array_pitch_span == ISL_ARRAY_PITCH_SPAN_COMPACT);
+ pitch_sa_rows = isl_align_npot(phys_slice0_sa->h, image_align_sa->h);
+ break;
+ default:
+ unreachable("bad isl_dim_layout");
+ break;
+ }
+
+ assert(pitch_sa_rows % fmtl->bh == 0);
+ uint32_t pitch_el_rows = pitch_sa_rows / fmtl->bh;
+
+ if (ISL_DEV_GEN(dev) >= 9 && fmtl->txc == ISL_TXC_CCS) {
+ /*
+ * From the Sky Lake PRM Vol 7, "MCS Buffer for Render Target(s)" (p. 632):
+ *
+ * "Mip-mapped and arrayed surfaces are supported with MCS buffer
+ * layout with these alignments in the RT space: Horizontal
+ * Alignment = 128 and Vertical Alignment = 64."
+ *
+ * From the Sky Lake PRM Vol. 2d, "RENDER_SURFACE_STATE" (p. 435):
+ *
+ * "For non-multisampled render target's CCS auxiliary surface,
+ * QPitch must be computed with Horizontal Alignment = 128 and
+ * Surface Vertical Alignment = 256. These alignments are only for
+ * CCS buffer and not for associated render target."
+ *
+ * The first restriction is already handled by isl_choose_image_alignment_el
+ * but the second restriction, which is an extension of the first, only
+ * applies to qpitch and must be applied here.
+ */
+ assert(fmtl->bh == 4);
+ pitch_el_rows = isl_align(pitch_el_rows, 256 / 4);
+ }
+
+ if (ISL_DEV_GEN(dev) >= 9 &&
+ info->dim == ISL_SURF_DIM_3D &&
+ tile_info->tiling != ISL_TILING_LINEAR) {
+ /* From the Skylake BSpec >> RENDER_SURFACE_STATE >> Surface QPitch:
+ *
+ * Tile Mode != Linear: This field must be set to an integer multiple
+ * of the tile height
+ */
+ pitch_el_rows = isl_align(pitch_el_rows, tile_info->logical_extent_el.height);
+ }
+
+ return pitch_el_rows;
+}
+
/**
* A variant of isl_calc_phys_slice0_extent_sa() specific to
* ISL_DIM_LAYOUT_GEN4_2D.
}
}
-/**
- * Calculate the pitch between physical array slices, in units of rows of
- * surface elements.
- */
-static uint32_t
-isl_calc_array_pitch_el_rows(const struct isl_device *dev,
- const struct isl_surf_init_info *restrict info,
- const struct isl_tile_info *tile_info,
- enum isl_dim_layout dim_layout,
- enum isl_array_pitch_span array_pitch_span,
- const struct isl_extent3d *image_align_sa,
- const struct isl_extent4d *phys_level0_sa,
- const struct isl_extent2d *phys_slice0_sa)
-{
- const struct isl_format_layout *fmtl = isl_format_get_layout(info->format);
- uint32_t pitch_sa_rows = 0;
-
- switch (dim_layout) {
- case ISL_DIM_LAYOUT_GEN9_1D:
- /* Each row is an array slice */
- pitch_sa_rows = 1;
- break;
- case ISL_DIM_LAYOUT_GEN4_2D:
- switch (array_pitch_span) {
- case ISL_ARRAY_PITCH_SPAN_COMPACT:
- pitch_sa_rows = isl_align_npot(phys_slice0_sa->h, image_align_sa->h);
- break;
- case ISL_ARRAY_PITCH_SPAN_FULL: {
- /* The QPitch equation is found in the Broadwell PRM >> Volume 5:
- * Memory Views >> Common Surface Formats >> Surface Layout >> 2D
- * Surfaces >> Surface Arrays.
- */
- uint32_t H0_sa = phys_level0_sa->h;
- uint32_t H1_sa = isl_minify(H0_sa, 1);
-
- uint32_t h0_sa = isl_align_npot(H0_sa, image_align_sa->h);
- uint32_t h1_sa = isl_align_npot(H1_sa, image_align_sa->h);
-
- uint32_t m;
- if (ISL_DEV_GEN(dev) >= 7) {
- /* The QPitch equation changed slightly in Ivybridge. */
- m = 12;
- } else {
- m = 11;
- }
-
- pitch_sa_rows = h0_sa + h1_sa + (m * image_align_sa->h);
-
- if (ISL_DEV_GEN(dev) == 6 && info->samples > 1 &&
- (info->height % 4 == 1)) {
- /* [SNB] Errata from the Sandy Bridge PRM >> Volume 4 Part 1:
- * Graphics Core >> Section 7.18.3.7: Surface Arrays:
- *
- * [SNB] Errata: Sampler MSAA Qpitch will be 4 greater than
- * the value calculated in the equation above , for every
- * other odd Surface Height starting from 1 i.e. 1,5,9,13.
- *
- * XXX(chadv): Is the errata natural corollary of the physical
- * layout of interleaved samples?
- */
- pitch_sa_rows += 4;
- }
-
- pitch_sa_rows = isl_align_npot(pitch_sa_rows, fmtl->bh);
- } /* end case */
- break;
- }
- break;
- case ISL_DIM_LAYOUT_GEN4_3D:
- assert(array_pitch_span == ISL_ARRAY_PITCH_SPAN_COMPACT);
- pitch_sa_rows = isl_align_npot(phys_slice0_sa->h, image_align_sa->h);
- break;
- default:
- unreachable("bad isl_dim_layout");
- break;
- }
-
- assert(pitch_sa_rows % fmtl->bh == 0);
- uint32_t pitch_el_rows = pitch_sa_rows / fmtl->bh;
-
- if (ISL_DEV_GEN(dev) >= 9 && fmtl->txc == ISL_TXC_CCS) {
- /*
- * From the Sky Lake PRM Vol 7, "MCS Buffer for Render Target(s)" (p. 632):
- *
- * "Mip-mapped and arrayed surfaces are supported with MCS buffer
- * layout with these alignments in the RT space: Horizontal
- * Alignment = 128 and Vertical Alignment = 64."
- *
- * From the Sky Lake PRM Vol. 2d, "RENDER_SURFACE_STATE" (p. 435):
- *
- * "For non-multisampled render target's CCS auxiliary surface,
- * QPitch must be computed with Horizontal Alignment = 128 and
- * Surface Vertical Alignment = 256. These alignments are only for
- * CCS buffer and not for associated render target."
- *
- * The first restriction is already handled by isl_choose_image_alignment_el
- * but the second restriction, which is an extension of the first, only
- * applies to qpitch and must be applied here.
- */
- assert(fmtl->bh == 4);
- pitch_el_rows = isl_align(pitch_el_rows, 256 / 4);
- }
-
- if (ISL_DEV_GEN(dev) >= 9 &&
- info->dim == ISL_SURF_DIM_3D &&
- tile_info->tiling != ISL_TILING_LINEAR) {
- /* From the Skylake BSpec >> RENDER_SURFACE_STATE >> Surface QPitch:
- *
- * Tile Mode != Linear: This field must be set to an integer multiple
- * of the tile height
- */
- pitch_el_rows = isl_align(pitch_el_rows, tile_info->logical_extent_el.height);
- }
-
- return pitch_el_rows;
-}
-
static uint32_t
isl_calc_row_pitch_alignment(const struct isl_surf_init_info *surf_info,
const struct isl_tile_info *tile_info)
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