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also add sched/tsc patch for ar7
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2406 3c298f89-4303-0410-b956-a3cf2f4a3e73
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target/linux/linux-2.4/patches/ar7/006-sched_use_tsc.patch
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72
target/linux/linux-2.4/patches/ar7/006-sched_use_tsc.patch
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@ -0,0 +1,72 @@
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diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
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--- linux.old/arch/mips/kernel/time.c 2005-01-19 15:09:29.000000000 +0100
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+++ linux.dev/arch/mips/kernel/time.c 2005-11-09 23:10:04.233756250 +0100
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@@ -151,6 +150,15 @@
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unsigned int (*mips_hpt_read)(void);
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void (*mips_hpt_init)(unsigned int);
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+extern __u32 get_htscl(void)
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+{
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+ return timerhi;
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+}
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+
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+extern __u64 get_tscll(void)
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+{
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+ return (((__u64) timerhi) << 32) | ((__u64) ((__u32) read_c0_count()));
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+}
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/*
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* timeofday services, for syscalls.
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@@ -761,3 +769,5 @@
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EXPORT_SYMBOL(to_tm);
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EXPORT_SYMBOL(rtc_set_time);
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EXPORT_SYMBOL(rtc_get_time);
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+EXPORT_SYMBOL(get_htscl);
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+EXPORT_SYMBOL(get_tscll);
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diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
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--- linux.old/include/asm-mips/timex.h 2003-08-25 13:44:44.000000000 +0200
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+++ linux.dev/include/asm-mips/timex.h 2005-11-09 22:15:59.352633250 +0100
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@@ -31,6 +31,19 @@
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return read_c0_count();
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}
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+extern __u32 get_htscl(void);
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+extern __u64 get_tscll(void);
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+
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+#define rdtsc(low, high) \
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+ high = get_htscl(); \
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+ low = read_c0_count();
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+
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+#define rdtscl(low) \
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+ low = read_c0_count();
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+
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+#define rdtscll(val) \
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+ val = get_tscll();
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+
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#define vxtime_lock() do {} while (0)
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#define vxtime_unlock() do {} while (0)
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diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h
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--- linux.old/include/net/pkt_sched.h 2005-11-09 21:25:10.686721000 +0100
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+++ linux.dev/include/net/pkt_sched.h 2005-11-09 21:54:26.063807750 +0100
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@@ -5,7 +5,11 @@
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#define PSCHED_JIFFIES 2
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#define PSCHED_CPU 3
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+#ifdef __mips__
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+#define PSCHED_CLOCK_SOURCE PSCHED_CPU
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+#else
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#define PSCHED_CLOCK_SOURCE PSCHED_JIFFIES
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+#endif
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#include <linux/config.h>
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#include <linux/types.h>
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@@ -271,7 +275,7 @@
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#define PSCHED_US2JIFFIE(delay) (((delay)+psched_clock_per_hz-1)/psched_clock_per_hz)
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#define PSCHED_JIFFIE2US(delay) ((delay)*psched_clock_per_hz)
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-#ifdef CONFIG_X86_TSC
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+#if defined(CONFIG_X86_TSC) || defined(__mips__)
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#define PSCHED_GET_TIME(stamp) \
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({ u64 __cur; \
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