[PATCH i-g-t v5 03/11] lib/intel_blt: Add i915 -> blt tile helper converter
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Thu May 9 05:33:51 UTC 2024
We have two kind of buffers in IGT - intel-buf for render and
blt-object for blitter. intel-buf uses I915_TILING* whereas
blt-object blt_tiling_type (T_*). To construct blt-object from
intel-buf we need to convert I915_TILING* to T_*. Add function
which does this conversion.
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Reviewed-by: Karolina Stolarek <karolina.stolarek at intel.com>
---
lib/intel_blt.c | 21 +++++++++++++++++++++
lib/intel_blt.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/lib/intel_blt.c b/lib/intel_blt.c
index 5a281036c4..946adc538b 100644
--- a/lib/intel_blt.c
+++ b/lib/intel_blt.c
@@ -560,6 +560,27 @@ int blt_tile_to_i915_tile(enum blt_tiling_type tiling)
return 0;
}
+/**
+ * i915_tile_to_blt_tile:
+ * @tiling: tiling id
+ *
+ * Returns:
+ * id of blt tiling like T_LINEAR, T_XMAJOR, etc
+ */
+enum blt_tiling_type i915_tile_to_blt_tile(uint32_t tiling)
+{
+ switch (tiling) {
+ case I915_TILING_NONE: return T_LINEAR;
+ case I915_TILING_X: return T_XMAJOR;
+ case I915_TILING_Y: return T_YMAJOR;
+ case I915_TILING_4: return T_TILE4;
+ case I915_TILING_64: return T_TILE64;
+ case I915_TILING_Yf: return T_YFMAJOR;
+ default:
+ igt_assert_f(0, "Unknown tiling!\n");
+ }
+}
+
/**
* blt_get_min_stride
* @width: width in pixels
diff --git a/lib/intel_blt.h b/lib/intel_blt.h
index fcfce69bee..6daf46aea4 100644
--- a/lib/intel_blt.h
+++ b/lib/intel_blt.h
@@ -214,6 +214,7 @@ bool blt_uses_extended_block_copy(int fd);
const char *blt_tiling_name(enum blt_tiling_type tiling);
int blt_tile_to_i915_tile(enum blt_tiling_type tiling);
+enum blt_tiling_type i915_tile_to_blt_tile(uint32_t tiling);
uint32_t blt_get_min_stride(uint32_t width, uint32_t bpp,
enum blt_tiling_type tiling);
--
2.34.1
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