linux-kernel - [PATCH v3 03/14] drm/rockchip: vop2: set half_block

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Message-Id: <20231130122302.12895-1-andyshrk@163.com>
Date:   Thu, 30 Nov 2023 20:23:02 +0800
From:   Andy Yan <andyshrk@....com>
To:     heiko@...ech.de
Cc:     hjc@...k-chips.com, dri-devel@...ts.freedesktop.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org, sebastian.reichel@...labora.com,
        kever.yang@...k-chips.com, chris.obbard@...labora.com,
        Andy Yan <andy.yan@...k-chips.com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH v3 03/14] drm/rockchip: vop2: set half_block_en bit in all mode

From: Andy Yan <andy.yan@...k-chips.com>

At first we thought the half_block_en bit in AFBCD_CTRL register
only work in afbc mode. But the fact is that it control the line
buffer in all mode(afbc/tile/linear), so we need configure it in
all case.

As the cluster windows of rk3568 only supports afbc format
so is therefore not affected.

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
Reviewed-by: Sascha Hauer <s.hauer@...gutronix.de>
---

(no changes since v1)

 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 25 ++++++++++++++------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 57784d0a22a6..639dfebc6bd1 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -521,6 +521,18 @@ static bool rockchip_vop2_mod_supported(struct drm_plane *plane, u32 format,
 	return vop2_convert_afbc_format(format) >= 0;
 }
 
+/*
+ * 0: Full mode, 16 lines for one tail
+ * 1: half block mode, 8 lines one tail
+ */
+static bool vop2_half_block_enable(struct drm_plane_state *pstate)
+{
+	if (pstate->rotation & (DRM_MODE_ROTATE_270 | DRM_MODE_ROTATE_90))
+		return false;
+	else
+		return true;
+}
+
 static u32 vop2_afbc_transform_offset(struct drm_plane_state *pstate,
 				      bool afbc_half_block_en)
 {
@@ -1144,6 +1156,7 @@ static void vop2_plane_atomic_update(struct drm_plane *plane,
 	bool rotate_90 = pstate->rotation & DRM_MODE_ROTATE_90;
 	struct rockchip_gem_object *rk_obj;
 	unsigned long offset;
+	bool half_block_en;
 	bool afbc_en;
 	dma_addr_t yrgb_mst;
 	dma_addr_t uv_mst;
@@ -1236,6 +1249,7 @@ static void vop2_plane_atomic_update(struct drm_plane *plane,
 	dsp_info = (dsp_h - 1) << 16 | ((dsp_w - 1) & 0xffff);
 
 	format = vop2_convert_format(fb->format->format);
+	half_block_en = vop2_half_block_enable(pstate);
 
 	drm_dbg(vop2->drm, "vp%d update %s[%dx%d->%dx%d@...%d] fmt[%p4cc_%s] addr[%pad]\n",
 		vp->id, win->data->name, actual_w, actual_h, dsp_w, dsp_h,
@@ -1243,6 +1257,9 @@ static void vop2_plane_atomic_update(struct drm_plane *plane,
 		&fb->format->format,
 		afbc_en ? "AFBC" : "", &yrgb_mst);
 
+	if (vop2_cluster_window(win))
+		vop2_win_write(win, VOP2_WIN_AFBC_HALF_BLOCK_EN, half_block_en);
+
 	if (afbc_en) {
 		u32 stride;
 
@@ -1283,13 +1300,7 @@ static void vop2_plane_atomic_update(struct drm_plane *plane,
 		vop2_win_write(win, VOP2_WIN_AFBC_UV_SWAP, uv_swap);
 		vop2_win_write(win, VOP2_WIN_AFBC_AUTO_GATING_EN, 0);
 		vop2_win_write(win, VOP2_WIN_AFBC_BLOCK_SPLIT_EN, 0);
-		if (pstate->rotation & (DRM_MODE_ROTATE_270 | DRM_MODE_ROTATE_90)) {
-			vop2_win_write(win, VOP2_WIN_AFBC_HALF_BLOCK_EN, 0);
-			transform_offset = vop2_afbc_transform_offset(pstate, false);
-		} else {
-			vop2_win_write(win, VOP2_WIN_AFBC_HALF_BLOCK_EN, 1);
-			transform_offset = vop2_afbc_transform_offset(pstate, true);
-		}
+		transform_offset = vop2_afbc_transform_offset(pstate, half_block_en);
 		vop2_win_write(win, VOP2_WIN_AFBC_HDR_PTR, yrgb_mst);
 		vop2_win_write(win, VOP2_WIN_AFBC_PIC_SIZE, act_info);
 		vop2_win_write(win, VOP2_WIN_AFBC_TRANSFORM_OFFSET, transform_offset);
-- 
2.34.1