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openwrt/target/linux/brcm63xx/patches-3.10/317-MIPS-BCM63XX-remove-RUNTIME_DETECT-code-for-bcmcpu_g.patch
Jonas Gorski db36359f48 brcm63xx: remove non runtime detect and refresh affinity patches 
Remove the non runtime detect code since its effectiveness is dubious
and almost never used.
Also update affinity patches to work on top of it.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 39268
2014-01-13 12:13:15 +00:00

200 lines
5.4 KiB
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From 78c3d2e796a28ad55f6c2310a11ab22e91bb52fc Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Mon, 2 Dec 2013 12:30:44 +0100
Subject: [PATCH 8/8] MIPS: BCM63XX: remove !RUNTIME_DETECT code for
bcmcpu_get_id
Use the same pattern as with get_*_cpu_type() to allow the compiler
to remove code for non enabled devices.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/cpu.c | 11 +--
arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 120 +++++++----------------
2 files changed, 38 insertions(+), 93 deletions(-)
--- a/arch/mips/bcm63xx/cpu.c
+++ b/arch/mips/bcm63xx/cpu.c
@@ -24,7 +24,9 @@ EXPORT_SYMBOL(bcm63xx_regs_base);
const int *bcm63xx_irqs;
EXPORT_SYMBOL(bcm63xx_irqs);
-static u16 bcm63xx_cpu_id;
+u16 bcm63xx_cpu_id __read_mostly;
+EXPORT_SYMBOL(bcm63xx_cpu_id);
+
static u8 bcm63xx_cpu_rev;
static unsigned int bcm63xx_cpu_freq;
static unsigned int bcm63xx_memory_size;
@@ -97,13 +99,6 @@ static const int bcm6368_irqs[] = {
};
-u16 __bcm63xx_get_cpu_id(void)
-{
- return bcm63xx_cpu_id;
-}
-
-EXPORT_SYMBOL(__bcm63xx_get_cpu_id);
-
u8 bcm63xx_get_cpu_rev(void)
{
return bcm63xx_cpu_rev;
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -19,118 +19,68 @@
#define BCM6368_CPU_ID 0x6368
void __init bcm63xx_cpu_init(void);
-u16 __bcm63xx_get_cpu_id(void);
u8 bcm63xx_get_cpu_rev(void);
unsigned int bcm63xx_get_cpu_freq(void);
+static inline u16 __pure __bcm63xx_get_cpu_id(const u16 cpu_id)
+{
+ switch (cpu_id) {
#ifdef CONFIG_BCM63XX_CPU_3368
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM3368_CPU_ID
-# endif
-# define BCMCPU_IS_3368() (bcm63xx_get_cpu_id() == BCM3368_CPU_ID)
-#else
-# define BCMCPU_IS_3368() (0)
+ case BCM3368_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6328
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6328_CPU_ID
-# endif
-# define BCMCPU_IS_6328() (bcm63xx_get_cpu_id() == BCM6328_CPU_ID)
-#else
-# define BCMCPU_IS_6328() (0)
+ case BCM6328_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6338
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6338_CPU_ID
-# endif
-# define BCMCPU_IS_6338() (bcm63xx_get_cpu_id() == BCM6338_CPU_ID)
-#else
-# define BCMCPU_IS_6338() (0)
+ case BCM6338_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6345
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6345_CPU_ID
-# endif
-# define BCMCPU_IS_6345() (bcm63xx_get_cpu_id() == BCM6345_CPU_ID)
-#else
-# define BCMCPU_IS_6345() (0)
+ case BCM6345_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6348
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6348_CPU_ID
-# endif
-# define BCMCPU_IS_6348() (bcm63xx_get_cpu_id() == BCM6348_CPU_ID)
-#else
-# define BCMCPU_IS_6348() (0)
+ case BCM6348_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6358
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6358_CPU_ID
-# endif
-# define BCMCPU_IS_6358() (bcm63xx_get_cpu_id() == BCM6358_CPU_ID)
-#else
-# define BCMCPU_IS_6358() (0)
+ case BCM6358_CPU_ID:
#endif
#ifdef CONFIG_BCM63XX_CPU_6362
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6362_CPU_ID
-# endif
-# define BCMCPU_IS_6362() (bcm63xx_get_cpu_id() == BCM6362_CPU_ID)
-#else
-# define BCMCPU_IS_6362() (0)
+ case BCM6362_CPU_ID:
#endif
-
#ifdef CONFIG_BCM63XX_CPU_6368
-# ifdef bcm63xx_get_cpu_id
-# undef bcm63xx_get_cpu_id
-# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
-# define BCMCPU_RUNTIME_DETECT
-# else
-# define bcm63xx_get_cpu_id() BCM6368_CPU_ID
-# endif
-# define BCMCPU_IS_6368() (bcm63xx_get_cpu_id() == BCM6368_CPU_ID)
-#else
-# define BCMCPU_IS_6368() (0)
-#endif
-
-#ifndef bcm63xx_get_cpu_id
-#error "No CPU support configured"
+ case BCM6368_CPU_ID:
#endif
+ break;
+ default:
+ unreachable();
+ }
+
+ return cpu_id;
+}
+
+extern u16 bcm63xx_cpu_id;
+
+static inline u16 __pure bcm63xx_get_cpu_id(void)
+{
+ const u16 cpu_id = bcm63xx_cpu_id;
+
+ return __bcm63xx_get_cpu_id(cpu_id);
+}
+
+#define BCMCPU_IS_3368() (bcm63xx_get_cpu_id() == BCM3368_CPU_ID)
+#define BCMCPU_IS_6328() (bcm63xx_get_cpu_id() == BCM6328_CPU_ID)
+#define BCMCPU_IS_6338() (bcm63xx_get_cpu_id() == BCM6338_CPU_ID)
+#define BCMCPU_IS_6345() (bcm63xx_get_cpu_id() == BCM6345_CPU_ID)
+#define BCMCPU_IS_6348() (bcm63xx_get_cpu_id() == BCM6348_CPU_ID)
+#define BCMCPU_IS_6358() (bcm63xx_get_cpu_id() == BCM6358_CPU_ID)
+#define BCMCPU_IS_6362() (bcm63xx_get_cpu_id() == BCM6362_CPU_ID)
+#define BCMCPU_IS_6368() (bcm63xx_get_cpu_id() == BCM6368_CPU_ID)
/*
* While registers sets are (mostly) the same across 63xx CPU, base
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