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Thu, 02 Jul 2020 00:48:08 -0700 (PDT) From: Neil Armstrong To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org Subject: [PATCH v8 4/6] drm/meson: overlay: setup overlay for Amlogic FBC Memory Saving mode Date: Thu, 2 Jul 2020 09:47:57 +0200 Message-Id: <20200702074759.32356-5-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20200702074759.32356-1-narmstrong@baylibre.com> References: <20200702074759.32356-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200702_034810_457767_FBF829F1 X-CRM114-Status: GOOD ( 11.85 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianxin.pan@amlogic.com, Neil Armstrong , Kevin Hilman , linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org 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 Signed-off-by: Neil Armstrong --- drivers/gpu/drm/meson/meson_overlay.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c index 293f606ba164..1566a887d482 100644 --- a/drivers/gpu/drm/meson/meson_overlay.c +++ b/drivers/gpu/drm/meson/meson_overlay.c @@ -486,6 +486,10 @@ 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(0, + AMLOGIC_FBC_OPTION_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); @@ -671,12 +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; @@ -734,6 +743,9 @@ static bool meson_overlay_format_mod_supported(struct drm_plane *plane, unsigned int layout = modifier & DRM_FORMAT_MOD_AMLOGIC_FBC( __fourcc_mod_amlogic_layout_mask, 0); + unsigned int options = + (modifier >> __fourcc_mod_amlogic_options_shift) & + __fourcc_mod_amlogic_options_mask; if (format != DRM_FORMAT_YUV420_8BIT && format != DRM_FORMAT_YUV420_10BIT) { @@ -748,6 +760,13 @@ static bool meson_overlay_format_mod_supported(struct drm_plane *plane, return false; } + if (options && + options != AMLOGIC_FBC_OPTION_MEM_SAVING) { + DRM_DEBUG_KMS("%llx invalid layout %x\n", + modifier, layout); + return false; + } + return true; } @@ -781,6 +800,8 @@ static const uint32_t supported_drm_formats[] = { }; static const uint64_t format_modifiers[] = { + DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC, + AMLOGIC_FBC_OPTION_MEM_SAVING), DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC, 0), DRM_FORMAT_MOD_LINEAR, DRM_FORMAT_MOD_INVALID, -- 2.22.0 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic