drm/format-helper: Fix test-input format conversion

Convert test input for format helpers from host byte order to
little-endian order. The current code does it the other way around,
but there's no effective difference to the result.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-4-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c
index cd1d7da..e7c49e6 100644 (file)
--- a/drivers/gpu/drm/tests/drm_format_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_format_helper_test.c
@@ -279,6 +279,21 @@ static u32 *le32buf_to_cpu(struct kunit *test, const u32 *buf, size_t buf_size)
        return dst;
 }
 
+static __le32 *cpubuf_to_le32(struct kunit *test, const u32 *buf, size_t buf_size)
+{
+       __le32 *dst = NULL;
+       int n;
+
+       dst = kunit_kzalloc(test, sizeof(*dst) * buf_size, GFP_KERNEL);
+       if (!dst)
+               return NULL;
+
+       for (n = 0; n < buf_size; n++)
+               dst[n] = cpu_to_le32(buf[n]);
+
+       return dst;
+}
+
 static void convert_xrgb8888_case_desc(struct convert_xrgb8888_case *t,
                                       char *desc)
 {
@@ -294,7 +309,7 @@ static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test)
        const struct convert_to_gray8_result *result = &params->gray8_result;
        size_t dst_size;
        __u8 *buf = NULL;
-       __u32 *xrgb8888 = NULL;
+       __le32 *xrgb8888 = NULL;
        struct iosys_map dst, src;
 
        struct drm_framebuffer fb = {
@@ -310,7 +325,7 @@ static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test)
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
        iosys_map_set_vaddr(&dst, buf);
 
-       xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
+       xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
        iosys_map_set_vaddr(&src, xrgb8888);
 
@@ -324,7 +339,7 @@ static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test)
        const struct convert_to_rgb332_result *result = &params->rgb332_result;
        size_t dst_size;
        __u8 *buf = NULL;
-       __u32 *xrgb8888 = NULL;
+       __le32 *xrgb8888 = NULL;
        struct iosys_map dst, src;
 
        struct drm_framebuffer fb = {
@@ -340,7 +355,7 @@ static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test)
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
        iosys_map_set_vaddr(&dst, buf);
 
-       xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
+       xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
        iosys_map_set_vaddr(&src, xrgb8888);
 
@@ -354,7 +369,7 @@ static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test)
        const struct convert_to_rgb565_result *result = &params->rgb565_result;
        size_t dst_size;
        __u16 *buf = NULL;
-       __u32 *xrgb8888 = NULL;
+       __le32 *xrgb8888 = NULL;
        struct iosys_map dst, src;
 
        struct drm_framebuffer fb = {
@@ -370,7 +385,7 @@ static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test)
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
        iosys_map_set_vaddr(&dst, buf);
 
-       xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
+       xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
        iosys_map_set_vaddr(&src, xrgb8888);
 
@@ -387,7 +402,7 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test)
        const struct convert_to_rgb888_result *result = &params->rgb888_result;
        size_t dst_size;
        __u8 *buf = NULL;
-       __u32 *xrgb8888 = NULL;
+       __le32 *xrgb8888 = NULL;
        struct iosys_map dst, src;
 
        struct drm_framebuffer fb = {
@@ -403,7 +418,7 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test)
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
        iosys_map_set_vaddr(&dst, buf);
 
-       xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
+       xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
        iosys_map_set_vaddr(&src, xrgb8888);
 
@@ -421,7 +436,7 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
        const struct convert_to_xrgb2101010_result *result = &params->xrgb2101010_result;
        size_t dst_size;
        __u32 *buf = NULL;
-       __u32 *xrgb8888 = NULL;
+       __le32 *xrgb8888 = NULL;
        struct iosys_map dst, src;
 
        struct drm_framebuffer fb = {
@@ -437,7 +452,7 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
        iosys_map_set_vaddr(&dst, buf);
 
-       xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
+       xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);
        KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
        iosys_map_set_vaddr(&src, xrgb8888);