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40 lines
1.4 KiB
Diff
40 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
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Date: Sat, 23 Jul 2022 13:23:19 +0200
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Subject: [PATCH 4/6] rockchip: rk3328: Set VOP QoS to high priority
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The default priority for the quality of service for the video
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output results in unsightly glitches on the output whenever there
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is memory pressure on the system, which happens a lot.
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This sets the VOP QoS to high priority, which fixes this issue.
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Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
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---
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arch/arm/mach-rockchip/rk3328/rk3328.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/arch/arm/mach-rockchip/rk3328/rk3328.c b/arch/arm/mach-rockchip/rk3328/rk3328.c
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index de17b88682..58300bdf3f 100644
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--- a/arch/arm/mach-rockchip/rk3328/rk3328.c
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+++ b/arch/arm/mach-rockchip/rk3328/rk3328.c
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@@ -19,6 +19,8 @@ DECLARE_GLOBAL_DATA_PTR;
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#define GRF_BASE 0xFF100000
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#define UART2_BASE 0xFF130000
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#define FW_DDR_CON_REG 0xFF7C0040
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+#define QOS_VOP_OFFSET 0xFF760080
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+#define QOS_VOP_PRIORITY 0x8
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const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
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[BROM_BOOTSOURCE_EMMC] = "/mmc@ff520000",
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@@ -54,6 +56,9 @@ int arch_cpu_init(void)
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/* Disable the ddr secure region setting to make it non-secure */
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rk_setreg(FW_DDR_CON_REG, 0x200);
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+#else
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+ printf("Setting VOP QoS\n");
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+ rk_setreg(QOS_VOP_OFFSET + QOS_VOP_PRIORITY, 0xF);
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#endif
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return 0;
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}
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