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950-0181-drm-vc4-Use-.pixel_order-instead-of-custom-.flip_cbc.patch
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950-0181-drm-vc4-Use-.pixel_order-instead-of-custom-.flip_cbc.patch
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From 954b81b93de3cc6baa9e2ebdd4e8dc7b63dab71a Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Thu, 16 Nov 2017 14:22:30 +0000
Subject: [PATCH 181/454] drm/vc4: Use .pixel_order instead of custom
.flip_cbcr
The hardware has enums for altering the Cr and Cb order,
so use this instead of having a flag which swaps the
order the pointers are presented to the hardware
(that only worked for 3 plane formats anyway).
Explicitly sets .pixel_order in each case, rather than
relying on then default XYCBCR order being a value 0.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/563872b69c1e5df142cb15ebfca7f20056b8a64c.1510841336.git.dave.stevenson@raspberrypi.org
(cherry picked from commit 090cb0c690183be849e2bfa0427220f1e435fa30)
---
drivers/gpu/drm/vc4/vc4_plane.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -86,7 +86,6 @@ static const struct hvs_format {
u32 hvs; /* HVS_FORMAT_* */
u32 pixel_order;
bool has_alpha;
- bool flip_cbcr;
} hvs_formats[] = {
{
.drm = DRM_FORMAT_XRGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
@@ -131,28 +130,32 @@ static const struct hvs_format {
{
.drm = DRM_FORMAT_YUV422,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
+ .pixel_order = HVS_PIXEL_ORDER_XYCBCR,
},
{
.drm = DRM_FORMAT_YVU422,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
- .flip_cbcr = true,
+ .pixel_order = HVS_PIXEL_ORDER_XYCRCB,
},
{
.drm = DRM_FORMAT_YUV420,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
+ .pixel_order = HVS_PIXEL_ORDER_XYCBCR,
},
{
.drm = DRM_FORMAT_YVU420,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
- .flip_cbcr = true,
+ .pixel_order = HVS_PIXEL_ORDER_XYCRCB,
},
{
.drm = DRM_FORMAT_NV12,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE,
+ .pixel_order = HVS_PIXEL_ORDER_XYCBCR,
},
{
.drm = DRM_FORMAT_NV16,
.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE,
+ .pixel_order = HVS_PIXEL_ORDER_XYCBCR,
},
};
@@ -627,15 +630,8 @@ static int vc4_plane_mode_set(struct drm
* The pointers may be any byte address.
*/
vc4_state->ptr0_offset = vc4_state->dlist_count;
- if (!format->flip_cbcr) {
- for (i = 0; i < num_planes; i++)
- vc4_dlist_write(vc4_state, vc4_state->offsets[i]);
- } else {
- WARN_ON_ONCE(num_planes != 3);
- vc4_dlist_write(vc4_state, vc4_state->offsets[0]);
- vc4_dlist_write(vc4_state, vc4_state->offsets[2]);
- vc4_dlist_write(vc4_state, vc4_state->offsets[1]);
- }
+ for (i = 0; i < num_planes; i++)
+ vc4_dlist_write(vc4_state, vc4_state->offsets[i]);
/* Pointer Context Word 0/1/2: Written by the HVS */
for (i = 0; i < num_planes; i++)