Setup the Amlogic FBC decoder for the VD1 video overlay plane to use
a different superblock size for the Memory Saving mode.
Tested-by: Kevin Hilman <khil...@baylibre.com>
Signed-off-by: Neil Armstrong <narmstr...@baylibre.com>
---
drivers/gpu/drm/meson/meson_overlay.c | 24 ++++++++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_overlay.c
b/drivers/gpu/drm/meson/meson_overlay.c
index 3127bd1a5d70..bbf86e9fc0ca 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -487,6 +487,9 @@ static void meson_overlay_atomic_update(struct drm_plane
*plane,
AFBC_HOLD_LINE_NUM(8) |
AFBC_BURST_LEN(2);
+ if (fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC_MEM_SAVING)
+ priv->viu.vd1_afbc_mode |= AFBC_BLK_MEM_MODE;
+
priv->viu.vd1_afbc_en = 0x1600 | AFBC_DEC_ENABLE;
priv->viu.vd1_afbc_conv_ctrl = AFBC_CONV_LBUF_LEN(256);
@@ -672,12 +675,17 @@ static void meson_overlay_atomic_update(struct drm_plane
*plane,
}
if (priv->viu.vd1_afbc) {
+ /* Default mode is 4k per superblock */
+ unsigned long block_size = 4096;
unsigned long body_size;
- /* Default mode is 4k per superblock */
+ /* 8bit mem saving mode is 3072bytes per superblock */
+ if (priv->viu.vd1_afbc_mode & AFBC_BLK_MEM_MODE)
+ block_size = 3072;
+
body_size = (ALIGN(priv->viu.vd1_stride0, 64) / 64) *
(ALIGN(priv->viu.vd1_height0, 32) / 32) *
- 4096;
+ block_size;
priv->viu.vd1_afbc_body_addr = priv->viu.vd1_addr0 >> 4;
@@ -735,6 +743,9 @@ static bool meson_overlay_format_mod_supported(struct
drm_plane *plane,
unsigned int layout = modifier &
DRM_FORMAT_MOD_AMLOGIC_FBC(
DRM_FORMAT_MOD_AMLOGIC_FBC_LAYOUT_MASK);
+ unsigned int options = modifier &
+ DRM_FORMAT_MOD_AMLOGIC_FBC(
+ DRM_FORMAT_MOD_AMLOGIC_FBC_OPTIONS_MASK);
if (format != DRM_FORMAT_YUV420_8BIT &&
format != DRM_FORMAT_YUV420_10BIT) {
@@ -749,6 +760,13 @@ static bool meson_overlay_format_mod_supported(struct
drm_plane *plane,
return false;
}
+ if (options &&
+ options != DRM_FORMAT_MOD_AMLOGIC_FBC_MEM_SAVING) {
+ DRM_DEBUG_KMS("%llx invalid layout %x\n",
+ modifier, layout);
+ return false;
+ }
+
return true;
}
@@ -782,6 +800,8 @@ static const uint32_t supported_drm_formats[] = {
};
static const uint64_t format_modifiers[] = {
+ DRM_FORMAT_MOD_AMLOGIC_FBC(DRM_FORMAT_MOD_AMLOGIC_FBC_LAYOUT_BASIC |
+ DRM_FORMAT_MOD_AMLOGIC_FBC_MEM_SAVING),
DRM_FORMAT_MOD_AMLOGIC_FBC(DRM_FORMAT_MOD_AMLOGIC_FBC_LAYOUT_BASIC),
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_INVALID,
--
2.22.0
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