mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
c11adb4b53
Move v6.11 backported bmips CBR patches from bmips target to generic. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
58 lines
1.9 KiB
Diff
58 lines
1.9 KiB
Diff
From 04f38d1a4db017f17e82442727b91ce03dd72759 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Daniel=20Gonz=C3=A1lez=20Cabanelas?= <dgcbueu@gmail.com>
|
|
Date: Thu, 20 Jun 2024 17:26:45 +0200
|
|
Subject: [PATCH 4/4] mips: bmips: enable RAC on BMIPS4350
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
The data RAC is left disabled by the bootloader in some SoCs, at least in
|
|
the core it boots from.
|
|
Enabling this feature increases the performance up to +30% depending on the
|
|
task.
|
|
|
|
Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
|
|
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
|
|
[ rework code and reduce code duplication ]
|
|
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
|
|
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
|
|
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
|
|
---
|
|
arch/mips/kernel/smp-bmips.c | 18 ++++++++++++++++++
|
|
1 file changed, 18 insertions(+)
|
|
|
|
--- a/arch/mips/kernel/smp-bmips.c
|
|
+++ b/arch/mips/kernel/smp-bmips.c
|
|
@@ -592,6 +592,7 @@ asmlinkage void __weak plat_wired_tlb_se
|
|
void bmips_cpu_setup(void)
|
|
{
|
|
void __iomem __maybe_unused *cbr = bmips_cbr_addr;
|
|
+ u32 __maybe_unused rac_addr;
|
|
u32 __maybe_unused cfg;
|
|
|
|
switch (current_cpu_type()) {
|
|
@@ -620,6 +621,23 @@ void bmips_cpu_setup(void)
|
|
__raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE);
|
|
break;
|
|
|
|
+ case CPU_BMIPS4350:
|
|
+ rac_addr = BMIPS_RAC_CONFIG_1;
|
|
+
|
|
+ if (!(read_c0_brcm_cmt_local() & (1 << 31)))
|
|
+ rac_addr = BMIPS_RAC_CONFIG;
|
|
+
|
|
+ /* Enable data RAC */
|
|
+ cfg = __raw_readl(cbr + rac_addr);
|
|
+ __raw_writel(cfg | 0xf, cbr + rac_addr);
|
|
+ __raw_readl(cbr + rac_addr);
|
|
+
|
|
+ /* Flush stale data out of the readahead cache */
|
|
+ cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
|
|
+ __raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
|
|
+ __raw_readl(cbr + BMIPS_RAC_CONFIG);
|
|
+ break;
|
|
+
|
|
case CPU_BMIPS4380:
|
|
/* CBG workaround for early BMIPS4380 CPUs */
|
|
switch (read_c0_prid()) {
|