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authorAyan Kumar Halder <ayan.halder@arm.com>2018-09-17 16:07:41 +0100
committerAyan kumar halder <ayan.halder@arm.com>2019-03-12 18:25:08 +0000
commitb8207562abdda11fab394c9f91db31c03a969cbb (patch)
tree0c2558e475ba032561d336bff9019c8c6af2fc69 /drivers/gpu/drm
parent5e290226b11b19ab2300f25644359990e7c1b1d1 (diff)
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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')
-rw-r--r--drivers/gpu/drm/arm/malidp_hw.c101
-rw-r--r--drivers/gpu/drm/arm/malidp_hw.h5
-rw-r--r--drivers/gpu/drm/arm/malidp_planes.c3
3 files changed, 98 insertions, 11 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c
index 0ac27626a8af..8df12e9a33bb 100644
--- a/drivers/gpu/drm/arm/malidp_hw.c
+++ b/drivers/gpu/drm/arm/malidp_hw.c
@@ -380,14 +380,39 @@ static void malidp500_modeset(struct malidp_hw_device *hwdev, struct videomode *
malidp_hw_clearbits(hwdev, MALIDP_DISP_FUNC_ILACED, MALIDP_DE_DISPLAY_FUNC);
}
-static int malidp500_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16 h, u32 fmt)
+int malidp_format_get_bpp(u32 fmt)
+{
+ int bpp = drm_format_plane_cpp(fmt, 0) * 8;
+
+ if (bpp == 0) {
+ switch (fmt) {
+ case DRM_FORMAT_VUY101010:
+ bpp = 30;
+ case DRM_FORMAT_YUV420_10BIT:
+ bpp = 15;
+ break;
+ case DRM_FORMAT_YUV420_8BIT:
+ bpp = 12;
+ break;
+ default:
+ bpp = 0;
+ }
+ }
+
+ return bpp;
+}
+
+static int malidp500_rotmem_required(struct malidp_hw_device *hwdev, u16 w,
+ u16 h, u32 fmt, bool has_modifier)
{
/*
* Each layer needs enough rotation memory to fit 8 lines
* worth of pixel data. Required size is then:
* size = rotated_width * (bpp / 8) * 8;
*/
- return w * drm_format_plane_cpp(fmt, 0) * 8;
+ int bpp = malidp_format_get_bpp(fmt);
+
+ return w * bpp;
}
static void malidp500_se_write_pp_coefftab(struct malidp_hw_device *hwdev,
@@ -665,9 +690,9 @@ static void malidp550_modeset(struct malidp_hw_device *hwdev, struct videomode *
malidp_hw_clearbits(hwdev, MALIDP_DISP_FUNC_ILACED, MALIDP_DE_DISPLAY_FUNC);
}
-static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16 h, u32 fmt)
+static int malidpx50_get_bytes_per_column(u32 fmt)
{
- u32 bytes_per_col;
+ u32 bytes_per_column;
switch (fmt) {
/* 8 lines at 4 bytes per pixel */
@@ -693,19 +718,77 @@ static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16
case DRM_FORMAT_UYVY:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_X0L0:
- case DRM_FORMAT_X0L2:
- bytes_per_col = 32;
+ bytes_per_column = 32;
break;
/* 16 lines at 1.5 bytes per pixel */
case DRM_FORMAT_NV12:
case DRM_FORMAT_YUV420:
- bytes_per_col = 24;
+ /* 8 lines at 3 bytes per pixel */
+ case DRM_FORMAT_VUY888:
+ /* 16 lines at 12 bits per pixel */
+ case DRM_FORMAT_YUV420_8BIT:
+ /* 8 lines at 3 bytes per pixel */
+ case DRM_FORMAT_P010:
+ bytes_per_column = 24;
+ break;
+ /* 8 lines at 30 bits per pixel */
+ case DRM_FORMAT_VUY101010:
+ /* 16 lines at 15 bits per pixel */
+ case DRM_FORMAT_YUV420_10BIT:
+ bytes_per_column = 30;
break;
default:
return -EINVAL;
}
- return w * bytes_per_col;
+ return bytes_per_column;
+}
+
+static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w,
+ u16 h, u32 fmt, bool has_modifier)
+{
+ int bytes_per_column = 0;
+
+ switch (fmt) {
+ /* 8 lines at 15 bits per pixel */
+ case DRM_FORMAT_YUV420_10BIT:
+ bytes_per_column = 15;
+ break;
+ /* Uncompressed YUV 420 10 bit single plane cannot be rotated */
+ case DRM_FORMAT_X0L2:
+ if (has_modifier)
+ bytes_per_column = 8;
+ else
+ return -EINVAL;
+ break;
+ default:
+ bytes_per_column = malidpx50_get_bytes_per_column(fmt);
+ }
+
+ if (bytes_per_column == -EINVAL)
+ return bytes_per_column;
+
+ return w * bytes_per_column;
+}
+
+static int malidp650_rotmem_required(struct malidp_hw_device *hwdev, u16 w,
+ u16 h, u32 fmt, bool has_modifier)
+{
+ int bytes_per_column = 0;
+
+ switch (fmt) {
+ /* 16 lines at 2 bytes per pixel */
+ case DRM_FORMAT_X0L2:
+ bytes_per_column = 32;
+ break;
+ default:
+ bytes_per_column = malidpx50_get_bytes_per_column(fmt);
+ }
+
+ if (bytes_per_column == -EINVAL)
+ return bytes_per_column;
+
+ return w * bytes_per_column;
}
static int malidp550_se_set_scaling_coeffs(struct malidp_hw_device *hwdev,
@@ -984,7 +1067,7 @@ const struct malidp_hw malidp_device[MALIDP_MAX_DEVICES] = {
.in_config_mode = malidp550_in_config_mode,
.set_config_valid = malidp550_set_config_valid,
.modeset = malidp550_modeset,
- .rotmem_required = malidp550_rotmem_required,
+ .rotmem_required = malidp650_rotmem_required,
.se_set_scaling_coeffs = malidp550_se_set_scaling_coeffs,
.se_calc_mclk = malidp550_se_calc_mclk,
.enable_memwrite = malidp550_enable_memwrite,
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)
{
/*
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 79e00bf69c5a..3dc8a6f32096 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -597,7 +597,8 @@ static int malidp_de_plane_check(struct drm_plane *plane,
val = mp->hwdev->hw->rotmem_required(mp->hwdev, state->crtc_w,
state->crtc_h,
- fb->format->format);
+ fb->format->format,
+ !!(fb->modifier));
if (val < 0)
return val;