From: Andrey Smirnov <andrew.smirnov@gmail.com> To: linux-arm-kernel@lists.infradead.org Cc: Russell King <linux@arm.linux.org.uk>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <kernel@pengutronix.de>, Arnd Bergmann <arnd@arndb.de>, linux-kernel@vger.kernel.org, Andrey Smirnov <andrew.smirnov@gmail.com> Subject: [PATCH v2 3/6] i.MX: system.c: Replace magic numbers Date: Tue, 14 Jun 2016 18:29:50 -0700 [thread overview] Message-ID: <1465954193-5894-4-git-send-email-andrew.smirnov@gmail.com> (raw) In-Reply-To: <1465954193-5894-1-git-send-email-andrew.smirnov@gmail.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> --- arch/arm/include/asm/hardware/cache-l2x0.h | 1 + arch/arm/mach-imx/system.c | 5 ++++- arch/arm/mm/cache-l2x0.c | 6 ++++-- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 3a5ec1c..e0ce59c 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -121,6 +121,7 @@ #define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */ #define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) #define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16) + #define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */ #define L310_AUX_CTRL_NS_LOCKDOWN BIT(26) #define L310_AUX_CTRL_NS_INT_CTRL BIT(27) diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index b153376..f0a9787 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -109,7 +109,10 @@ void __init imx_init_l2cache(void) if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { /* Configure the L2 PREFETCH and POWER registers */ val = readl_relaxed(l2x0_base + L310_PREFETCH_CTRL); - val |= 0x70800000; + val |= L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_INSTR_PREFETCH | + L310_PREFETCH_CTRL_DATA_PREFETCH | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR; writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); } diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 9f9d542..30e2012 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -716,8 +716,10 @@ static void __init l2c310_fixup(void __iomem *base, u32 cache_id, revision < L310_CACHE_ID_RTL_R3P2) { u32 val = l2x0_saved_regs.prefetch_ctrl; /* I don't think bit23 is required here... but iMX6 does so */ - if (val & (BIT(30) | BIT(23))) { - val &= ~(BIT(30) | BIT(23)); + if (val & (L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR)) { + val &= ~(L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR); l2x0_saved_regs.prefetch_ctrl = val; errata[n++] = "752271"; } -- 2.5.5
WARNING: multiple messages have this Message-ID (diff)
From: andrew.smirnov@gmail.com (Andrey Smirnov) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 3/6] i.MX: system.c: Replace magic numbers Date: Tue, 14 Jun 2016 18:29:50 -0700 [thread overview] Message-ID: <1465954193-5894-4-git-send-email-andrew.smirnov@gmail.com> (raw) In-Reply-To: <1465954193-5894-1-git-send-email-andrew.smirnov@gmail.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> --- arch/arm/include/asm/hardware/cache-l2x0.h | 1 + arch/arm/mach-imx/system.c | 5 ++++- arch/arm/mm/cache-l2x0.c | 6 ++++-- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 3a5ec1c..e0ce59c 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -121,6 +121,7 @@ #define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */ #define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) #define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16) + #define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */ #define L310_AUX_CTRL_NS_LOCKDOWN BIT(26) #define L310_AUX_CTRL_NS_INT_CTRL BIT(27) diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index b153376..f0a9787 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -109,7 +109,10 @@ void __init imx_init_l2cache(void) if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { /* Configure the L2 PREFETCH and POWER registers */ val = readl_relaxed(l2x0_base + L310_PREFETCH_CTRL); - val |= 0x70800000; + val |= L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_INSTR_PREFETCH | + L310_PREFETCH_CTRL_DATA_PREFETCH | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR; writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); } diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 9f9d542..30e2012 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -716,8 +716,10 @@ static void __init l2c310_fixup(void __iomem *base, u32 cache_id, revision < L310_CACHE_ID_RTL_R3P2) { u32 val = l2x0_saved_regs.prefetch_ctrl; /* I don't think bit23 is required here... but iMX6 does so */ - if (val & (BIT(30) | BIT(23))) { - val &= ~(BIT(30) | BIT(23)); + if (val & (L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR)) { + val &= ~(L310_PREFETCH_CTRL_DBL_LINEFILL | + L310_PREFETCH_CTRL_DBL_LINEFILL_INCR); l2x0_saved_regs.prefetch_ctrl = val; errata[n++] = "752271"; } -- 2.5.5
next prev parent reply other threads:[~2016-06-15 1:31 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-15 1:29 [PATCH v2 0/6] i.MX L2-cache code cleanups and performance tweaks Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 1:29 ` [PATCH v2 1/6] i.MX: system.c: Convert goto to if statement Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 1:29 ` [PATCH v2 2/6] i.MX: system.c: Remove redundant errata 752271 code Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov [this message] 2016-06-15 1:29 ` [PATCH v2 3/6] i.MX: system.c: Replace magic numbers Andrey Smirnov 2016-06-15 6:18 ` Uwe Kleine-König 2016-06-15 6:18 ` Uwe Kleine-König 2016-06-16 2:00 ` Shawn Guo 2016-06-16 2:00 ` Shawn Guo 2016-06-15 1:29 ` [PATCH v2 4/6] ARM: cache-l2x0: Do not clear bit 23 in prefetch control register Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 1:29 ` [PATCH v2 5/6] i.MX: system.c: Tweak prefetch settings for performance Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 1:29 ` [PATCH v2 6/6] i.MX: Do not explicitly call l2x0_of_init() Andrey Smirnov 2016-06-15 1:29 ` Andrey Smirnov 2016-06-15 10:41 ` Arnd Bergmann 2016-06-15 10:41 ` Arnd Bergmann
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