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authorMaxime Ripard <maxime@cerno.tech>2022-03-08 15:18:01 +0100
committerMaxime Ripard <maxime@cerno.tech>2022-06-28 15:56:04 +0200
commit9e9469cee564428d21ac2a72e81e4244ebca4d53 (patch)
tree93a0b657f763c72d20d52ba5edb478eccac6ee15
parent4736e0fa308208c7407f9cc8e2fce07562258912 (diff)
tests/kms_writeback: Use endianness accessor to fill pixels
The fill_fb() function in the kms_writeback test suite will fill an XRGB8888 buffer using a pattern passed an an argument. However, the pattern is native endian, while XRGB8888 is little-endian. Add an accessor and use it to fill the framebuffer with our pattern. Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
-rw-r--r--lib/igt_core.h9
-rw-r--r--tests/kms_writeback.c2
2 files changed, 10 insertions, 1 deletions
diff --git a/lib/igt_core.h b/lib/igt_core.h
index 526282fa..aa98e8ed 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -31,6 +31,7 @@
#define IGT_CORE_H
#include <assert.h>
+#include <byteswap.h>
#include <setjmp.h>
#include <stdbool.h>
#include <stdint.h>
@@ -1447,6 +1448,14 @@ void igt_kmsg(const char *format, ...);
#define READ_ONCE(x) (*(volatile typeof(x) *)(&(x)))
#define WRITE_ONCE(x, v) do *(volatile typeof(x) *)(&(x)) = (v); while (0)
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define cpu_to_le32(x) bswap_32(x)
+#define le32_to_cpu(x) bswap_32(x)
+#else
+#define cpu_to_le32(x) (x)
+#define le32_to_cpu(x) (x)
+#endif
+
#define MSEC_PER_SEC (1000)
#define USEC_PER_SEC (1000*MSEC_PER_SEC)
#define NSEC_PER_SEC (1000*USEC_PER_SEC)
diff --git a/tests/kms_writeback.c b/tests/kms_writeback.c
index 6efc72df..cf70a28e 100644
--- a/tests/kms_writeback.c
+++ b/tests/kms_writeback.c
@@ -244,7 +244,7 @@ static void fill_fb(igt_fb_t *fb, uint32_t pixel)
pixel_count = fb->strides[0] * fb->height / sizeof(uint32_t);
for (i = 0; i < pixel_count; i++)
- ptr[i] = pixel;
+ ptr[i] = cpu_to_le32(pixel);
igt_fb_unmap_buffer(fb, ptr);
}