aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/include
diff options
context:
space:
mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-12 16:53:38 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-12 16:53:38 +1000
commitbc47ab0241c7c86da4f5e5f82fbca7d45387c18d (patch)
treeb9c33ae8b6de43e44cc5fcbaa3e4a15f18a5ed42 /arch/mips/include
parent37f9ef553bed630957e025504cdcbc76f5de49d5 (diff)
parent8ebf975608aaebd7feb33d77f07ba21a6380e086 (diff)
Merge commit 'origin/master' into next
Manual merge of: arch/powerpc/kernel/asm-offsets.c
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/cpu-info.h4
-rw-r--r--arch/mips/include/asm/delay.h92
-rw-r--r--arch/mips/include/asm/ioctl.h4
-rw-r--r--arch/mips/include/asm/irq.h2
4 files changed, 12 insertions, 90 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 744cd8fb107..126044308de 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -39,8 +39,8 @@ struct cache_desc {
#define MIPS_CACHE_PINDEX 0x00000020 /* Physically indexed cache */
struct cpuinfo_mips {
- unsigned long udelay_val;
- unsigned long asid_cache;
+ unsigned int udelay_val;
+ unsigned int asid_cache;
/*
* Capability and feature descriptor structure for MIPS CPU
diff --git a/arch/mips/include/asm/delay.h b/arch/mips/include/asm/delay.h
index b0bccd2c4ed..a07e51b2be1 100644
--- a/arch/mips/include/asm/delay.h
+++ b/arch/mips/include/asm/delay.h
@@ -11,94 +11,12 @@
#ifndef _ASM_DELAY_H
#define _ASM_DELAY_H
-#include <linux/param.h>
-#include <linux/smp.h>
+extern void __delay(unsigned int loops);
+extern void __ndelay(unsigned int ns);
+extern void __udelay(unsigned int us);
-#include <asm/compiler.h>
-#include <asm/war.h>
-
-static inline void __delay(unsigned long loops)
-{
- if (sizeof(long) == 4)
- __asm__ __volatile__ (
- " .set noreorder \n"
- " .align 3 \n"
- "1: bnez %0, 1b \n"
- " subu %0, 1 \n"
- " .set reorder \n"
- : "=r" (loops)
- : "0" (loops));
- else if (sizeof(long) == 8 && !DADDI_WAR)
- __asm__ __volatile__ (
- " .set noreorder \n"
- " .align 3 \n"
- "1: bnez %0, 1b \n"
- " dsubu %0, 1 \n"
- " .set reorder \n"
- : "=r" (loops)
- : "0" (loops));
- else if (sizeof(long) == 8 && DADDI_WAR)
- __asm__ __volatile__ (
- " .set noreorder \n"
- " .align 3 \n"
- "1: bnez %0, 1b \n"
- " dsubu %0, %2 \n"
- " .set reorder \n"
- : "=r" (loops)
- : "0" (loops), "r" (1));
-}
-
-
-/*
- * Division by multiplication: you don't have to worry about
- * loss of precision.
- *
- * Use only for very small delays ( < 1 msec). Should probably use a
- * lookup table, really, as the multiplications take much too long with
- * short delays. This is a "reasonable" implementation, though (and the
- * first constant multiplications gets optimized away if the delay is
- * a constant)
- */
-
-static inline void __udelay(unsigned long usecs, unsigned long lpj)
-{
- unsigned long hi, lo;
-
- /*
- * The rates of 128 is rounded wrongly by the catchall case
- * for 64-bit. Excessive precission? Probably ...
- */
-#if defined(CONFIG_64BIT) && (HZ == 128)
- usecs *= 0x0008637bd05af6c7UL; /* 2**64 / (1000000 / HZ) */
-#elif defined(CONFIG_64BIT)
- usecs *= (0x8000000000000000UL / (500000 / HZ));
-#else /* 32-bit junk follows here */
- usecs *= (unsigned long) (((0x8000000000000000ULL / (500000 / HZ)) +
- 0x80000000ULL) >> 32);
-#endif
-
- if (sizeof(long) == 4)
- __asm__("multu\t%2, %3"
- : "=h" (usecs), "=l" (lo)
- : "r" (usecs), "r" (lpj)
- : GCC_REG_ACCUM);
- else if (sizeof(long) == 8 && !R4000_WAR)
- __asm__("dmultu\t%2, %3"
- : "=h" (usecs), "=l" (lo)
- : "r" (usecs), "r" (lpj)
- : GCC_REG_ACCUM);
- else if (sizeof(long) == 8 && R4000_WAR)
- __asm__("dmultu\t%3, %4\n\tmfhi\t%0"
- : "=r" (usecs), "=h" (hi), "=l" (lo)
- : "r" (usecs), "r" (lpj)
- : GCC_REG_ACCUM);
-
- __delay(usecs);
-}
-
-#define __udelay_val cpu_data[raw_smp_processor_id()].udelay_val
-
-#define udelay(usecs) __udelay((usecs), __udelay_val)
+#define ndelay(ns) __udelay(ns)
+#define udelay(us) __udelay(us)
/* make sure "usecs *= ..." in udelay do not overflow. */
#if HZ >= 1000
diff --git a/arch/mips/include/asm/ioctl.h b/arch/mips/include/asm/ioctl.h
index 85067e248a8..916163401b2 100644
--- a/arch/mips/include/asm/ioctl.h
+++ b/arch/mips/include/asm/ioctl.h
@@ -60,12 +60,16 @@
((nr) << _IOC_NRSHIFT) | \
((size) << _IOC_SIZESHIFT))
+#ifdef __KERNEL__
/* provoke compile error for invalid uses of size argument */
extern unsigned int __invalid_size_argument_for_IOC;
#define _IOC_TYPECHECK(t) \
((sizeof(t) == sizeof(t[1]) && \
sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
sizeof(t) : __invalid_size_argument_for_IOC)
+#else
+#define _IOC_TYPECHECK(t) (sizeof(t))
+#endif
/* used to create numbers */
#define _IO(type, nr) _IOC(_IOC_NONE, (type), (nr), 0)
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 3214ade02d1..4f1eed107b0 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -49,7 +49,7 @@ static inline void smtc_im_ack_irq(unsigned int irq)
#ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
#include <linux/cpumask.h>
-extern void plat_set_irq_affinity(unsigned int irq,
+extern int plat_set_irq_affinity(unsigned int irq,
const struct cpumask *affinity);
extern void smtc_forward_irq(unsigned int irq);