From: Neil Armstrong <narmstrong@baylibre.com>
To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org
Cc: jianxin.pan@amlogic.com, Neil Armstrong <narmstrong@baylibre.com>,
Kevin Hilman <khilman@baylibre.com>,
linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 5/6] drm/meson: overlay: setup overlay for Amlogic FBC Scatter Memory layout
Date: Fri, 3 Jul 2020 10:07:27 +0200 [thread overview]
Message-ID: <20200703080728.25207-6-narmstrong@baylibre.com> (raw)
In-Reply-To: <20200703080728.25207-1-narmstrong@baylibre.com>
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,
--
2.22.0
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next prev parent reply other threads:[~2020-07-03 8:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-03 8:07 [PATCH v9 0/6] drm/meson: add support for Amlogic Video FBC Neil Armstrong
2020-07-03 8:07 ` [PATCH v9 1/6] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression Neil Armstrong
2020-07-03 9:08 ` Simon Ser
2020-07-06 8:51 ` Neil Armstrong
2020-07-03 8:07 ` [PATCH v9 2/6] drm/meson: add Amlogic Video FBC registers Neil Armstrong
2020-07-03 8:07 ` [PATCH v9 3/6] drm/meson: overlay: setup overlay for Amlogic FBC Neil Armstrong
2020-07-03 8:07 ` [PATCH v9 4/6] drm/meson: overlay: setup overlay for Amlogic FBC Memory Saving mode Neil Armstrong
2020-07-03 8:07 ` Neil Armstrong [this message]
2020-07-03 8:07 ` [PATCH v9 6/6] drm/meson: crtc: handle commit of Amlogic FBC frames Neil Armstrong
2020-07-03 8:36 ` [PATCH v9 0/6] drm/meson: add support for Amlogic Video FBC Neil Armstrong
2020-08-17 17:48 ` patchwork-bot+linux-amlogic
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