linux-kernel - [PATCH] drm/rockchip: vop2: Convert to use maple tree register cache

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Message-Id: <20231001-drm-rockchip-maple-v1-1-ca396ab75be7@kernel.org>
Date:   Sun, 01 Oct 2023 01:42:50 +0200
From:   Mark Brown <broonie@...nel.org>
To:     Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH] drm/rockchip: vop2: Convert to use maple tree register
 cache

The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 583df4d22f7e..9f4470171cf4 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -2641,7 +2641,7 @@ static const struct regmap_config vop2_regmap_config = {
 	.max_register	= 0x3000,
 	.name		= "vop2",
 	.volatile_table	= &vop2_volatile_table,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static int vop2_bind(struct device *dev, struct device *master, void *data)

---
base-commit: 6465e260f48790807eef06b583b38ca9789b6072
change-id: 20230929-drm-rockchip-maple-f6253d6a422e

Best regards,
-- 
Mark Brown <broonie@...nel.org>