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31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
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From 38643fd0a26ba42938a361db296e28f3b4975d8c Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Wed, 31 Mar 2021 18:12:55 +0100
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Subject: [PATCH] vc4/drm: SQUASH: Fix source offsets with
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DRM_FORMAT_P030
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x_off should only be within current stripe
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The stripe number is accounted for elsewhere
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Fixes: 9b1b1beb1c7e58b ("vc4/drm: Fix source offsets with DRM_FORMAT_P030")
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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---
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drivers/gpu/drm/vc4/vc4_plane.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -825,8 +825,9 @@ static int vc4_plane_mode_set(struct drm
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* and bits[3:0] should be between 0 and 11, indicating which
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* of the 12-pixels in that 128-bit word is the first pixel to be used
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*/
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- u32 aligned = vc4_state->src_x / 12;
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- u32 last_bits = vc4_state->src_x % 12;
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+ u32 remaining_pixels = vc4_state->src_x % 96;
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+ u32 aligned = remaining_pixels / 12;
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+ u32 last_bits = remaining_pixels % 12;
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x_off = aligned * 16 + last_bits;
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hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT;
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