From: Melissa Wen <melissa.srw@gmail.com>
To: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>,
Haneen Mohammed <hamohammed.sa@gmail.com>,
Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: twoerner@gmail.com, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, kernel-usp@googlegroups.com
Subject: [PATCH] drm/vkms: fix xrgb on compute crc
Date: Thu, 30 Jul 2020 17:25:24 -0300 [thread overview]
Message-ID: <20200730202524.5upzuh4irboru7my@smtp.gmail.com> (raw)
The previous memset operation was not correctly zeroing the alpha
channel to compute the crc, and as a result, the IGT subtest
kms_cursor_crc/pipe-A-cursor-alpha-transparent fails.
Fixes: db7f419c06d7c ("drm/vkms: Compute CRC with Cursor Plane")
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
---
drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 4af2f19480f4..b8b060354667 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -33,7 +33,7 @@ static uint32_t compute_crc(void *vaddr_out, struct vkms_composer *composer)
+ (i * composer->pitch)
+ (j * composer->cpp);
/* XRGB format ignores Alpha channel */
- memset(vaddr_out + src_offset + 24, 0, 8);
+ bitmap_clear(vaddr_out + src_offset, 24, 8);
crc = crc32_le(crc, vaddr_out + src_offset,
sizeof(u32));
}
--
2.27.0
next reply other threads:[~2020-07-30 20:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-30 20:25 Melissa Wen [this message]
2020-07-31 9:28 ` daniel
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