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| author | Ayan Kumar Halder <ayan.halder@arm.com> | 2018-09-17 18:07:41 +0300 |
|---|---|---|
| committer | Ayan kumar halder <ayan.halder@arm.com> | 2019-03-12 21:25:08 +0300 |
| commit | b8207562abdda11fab394c9f91db31c03a969cbb (patch) | |
| tree | 0c2558e475ba032561d336bff9019c8c6af2fc69 /drivers/gpu/drm/arm/malidp_hw.h | |
| parent | 5e290226b11b19ab2300f25644359990e7c1b1d1 (diff) | |
| download | linux-b8207562abdda11fab394c9f91db31c03a969cbb.tar.xz | |
drm/arm/malidp: Specified the rotation memory requirements for AFBC YUV formats
The newly supported AFBC YUV formats have the following rotation memory
constraints (in DP550/DP650).
1. DRM_FORMAT_VUY888/DRM_FORMAT_VUY101010 :- It can rotate upto 8
horizontal lines in the AFBC output buffer.
2. DRM_FORMAT_YUV420_8BIT :- It can rotate upto 16 horizontal lines
in the AFBC output buffer.
Also some of the pixel formats are specified in bits per pixel (rather
than bytes per pixel), so the calculation needs to take note of this.
Besides there are some difference between DP550 and DP650 and these are
as follows:-
1. DRM_FORMAT_X0L2 (in uncompressed format) does not support rotation in
DP550. For DP650, it can rotate upto 16 horizontal lines in the AFBC
output buffer, whereas in DP550 (with AFBC), it can rotate upto 8
horizontal lines.
2. DRM_FORMAT_YUV420_10BIT :- It can rotate upto 8 horizontal lines in
dp550 and 16 horizontal lines in DP650.
Changes since v3 (series):
- Added the ack
- Rebased on the latest drm-misc-next
Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://patchwork.freedesktop.org/patch/291763/?series=57895&rev=1
Diffstat (limited to 'drivers/gpu/drm/arm/malidp_hw.h')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_hw.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_hw.h index 0859302fd909..207c3ce52f1a 100644 --- a/drivers/gpu/drm/arm/malidp_hw.h +++ b/drivers/gpu/drm/arm/malidp_hw.h @@ -184,7 +184,8 @@ struct malidp_hw { * Calculate the required rotation memory given the active area * and the buffer format. */ - int (*rotmem_required)(struct malidp_hw_device *hwdev, u16 w, u16 h, u32 fmt); + int (*rotmem_required)(struct malidp_hw_device *hwdev, u16 w, u16 h, + u32 fmt, bool has_modifier); int (*se_set_scaling_coeffs)(struct malidp_hw_device *hwdev, struct malidp_se_config *se_config, @@ -326,6 +327,8 @@ void malidp_se_irq_fini(struct malidp_hw_device *hwdev); u8 malidp_hw_get_format_id(const struct malidp_hw_regmap *map, u8 layer_id, u32 format, bool has_modifier); +int malidp_format_get_bpp(u32 fmt); + static inline u8 malidp_hw_get_pitch_align(struct malidp_hw_device *hwdev, bool rotated) { /* |