Setup the Amlogic FBC decoder for the VD1 video overlay plane to use read the FBC header as Scatter Memory layout reference.
Tested-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com Reviewed-by: Kevin Hilman khilman@baylibre.com --- drivers/gpu/drm/meson/meson_overlay.c | 53 ++++++++++++++++++--------- 1 file changed, 35 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c index 1566a887d482..1f7b2055e012 100644 --- a/drivers/gpu/drm/meson/meson_overlay.c +++ b/drivers/gpu/drm/meson/meson_overlay.c @@ -490,6 +490,10 @@ static void meson_overlay_atomic_update(struct drm_plane *plane, AMLOGIC_FBC_OPTION_MEM_SAVING)) priv->viu.vd1_afbc_mode |= AFBC_BLK_MEM_MODE;
+ if ((fb->modifier & __fourcc_mod_amlogic_layout_mask) == + AMLOGIC_FBC_LAYOUT_SCATTER) + priv->viu.vd1_afbc_mode |= AFBC_SCATTER_MODE; + priv->viu.vd1_afbc_en = 0x1600 | AFBC_DEC_ENABLE;
priv->viu.vd1_afbc_conv_ctrl = AFBC_CONV_LBUF_LEN(256); @@ -675,23 +679,32 @@ 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; - - /* 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) * - block_size; - - priv->viu.vd1_afbc_body_addr = priv->viu.vd1_addr0 >> 4; - - /* Header is after body content */ - priv->viu.vd1_afbc_head_addr = (priv->viu.vd1_addr0 + - body_size) >> 4; + if (priv->viu.vd1_afbc_mode & AFBC_SCATTER_MODE) { + /* + * In Scatter mode, the header contains the physical + * body content layout, thus the body content + * size isn't needed. + */ + priv->viu.vd1_afbc_head_addr = priv->viu.vd1_addr0 >> 4; + priv->viu.vd1_afbc_body_addr = 0; + } else { + /* Default mode is 4k per superblock */ + unsigned long block_size = 4096; + unsigned long body_size; + + /* 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) * + block_size; + + priv->viu.vd1_afbc_body_addr = priv->viu.vd1_addr0 >> 4; + /* Header is after body content */ + priv->viu.vd1_afbc_head_addr = (priv->viu.vd1_addr0 + + body_size) >> 4; + } }
priv->viu.vd1_enabled = true; @@ -754,7 +767,8 @@ static bool meson_overlay_format_mod_supported(struct drm_plane *plane, return false; }
- if (layout != AMLOGIC_FBC_LAYOUT_BASIC) { + if (layout != AMLOGIC_FBC_LAYOUT_BASIC && + layout != AMLOGIC_FBC_LAYOUT_SCATTER) { DRM_DEBUG_KMS("%llx invalid layout %x\n", modifier, layout); return false; @@ -800,8 +814,11 @@ static const uint32_t supported_drm_formats[] = { };
static const uint64_t format_modifiers[] = { + DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_SCATTER, + AMLOGIC_FBC_OPTION_MEM_SAVING), DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC, AMLOGIC_FBC_OPTION_MEM_SAVING), + DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_SCATTER, 0), DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC, 0), DRM_FORMAT_MOD_LINEAR, DRM_FORMAT_MOD_INVALID,