From 7d216315d8c894e6f485d106831b9d07ef2b1a87 Mon Sep 17 00:00:00 2001 From: juhosg Date: Tue, 7 Oct 2008 12:29:33 +0000 Subject: [kernel] refresh 2.6.27 patches based on -rc9 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12892 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../patches-2.6.27/300-mips_fw_myloader.patch | 2 +- .../900-mips_multi_machine_support.patch | 6 +- .../901-get_c0_compare_irq_function.patch | 2 +- .../902-mips_clocksource_init_war.patch | 73 ++++++++++------------ 4 files changed, 37 insertions(+), 46 deletions(-) (limited to 'target/linux/ar71xx/patches-2.6.27') diff --git a/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch b/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch index bfff74aad..a774d2194 100644 --- a/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch +++ b/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch @@ -10,7 +10,7 @@ libs-$(CONFIG_SIBYTE_CFE) += arch/mips/sibyte/cfe/ --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig -@@ -781,6 +781,9 @@ +@@ -782,6 +782,9 @@ config MIPS_DISABLE_OBSOLETE_IDE bool diff --git a/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch b/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch index df64d3ff5..7bb410f1f 100644 --- a/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch +++ b/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch @@ -113,7 +113,7 @@ + --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile -@@ -82,6 +82,7 @@ +@@ -83,6 +83,7 @@ obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o @@ -123,7 +123,7 @@ --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig -@@ -614,6 +614,7 @@ +@@ -615,6 +615,7 @@ endchoice @@ -131,7 +131,7 @@ source "arch/mips/au1000/Kconfig" source "arch/mips/basler/excite/Kconfig" source "arch/mips/jazz/Kconfig" -@@ -787,6 +788,9 @@ +@@ -788,6 +789,9 @@ config SYNC_R4K bool diff --git a/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch b/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch index 52044c957..c1fee78e2 100644 --- a/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch +++ b/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch @@ -8,7 +8,7 @@ extern void check_wait(void); extern asmlinkage void r4k_wait(void); -@@ -1482,6 +1483,8 @@ +@@ -1484,6 +1485,8 @@ */ if (cpu_has_mips_r2) { cp0_compare_irq = (read_c0_intctl() >> 29) & 7; diff --git a/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch b/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch index bdf0d0fb6..564321c7c 100644 --- a/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch +++ b/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch @@ -1,10 +1,9 @@ --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c -@@ -13,6 +13,22 @@ - #include - #include +@@ -15,6 +15,22 @@ + #include -+/* + /* + * Compare interrupt can be routed and latched outside the core, + * so a single execution hazard barrier may not be enough to give + * it time to clear as seen in the Cause register. 4 time the @@ -20,46 +19,38 @@ + irq_disable_hazard(); \ + } while (0) + - static int mips_next_event(unsigned long delta, - struct clock_event_device *evt) - { -@@ -28,6 +44,7 @@ ++/* + * The SMTC Kernel for the 34K, 1004K, et. al. replaces several + * of these routines with SMTC-specific variants. + */ +@@ -30,6 +46,7 @@ cnt = read_c0_count(); cnt += delta; write_c0_compare(cnt); + compare_change_hazard(); res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0; - #ifdef CONFIG_MIPS_MT_SMTC - evpe(vpflags); -@@ -187,7 +204,7 @@ - */ - if (c0_compare_int_pending()) { - write_c0_compare(read_c0_count()); -- irq_disable_hazard(); -+ compare_change_hazard(); - if (c0_compare_int_pending()) - return 0; - } -@@ -196,7 +213,7 @@ - cnt = read_c0_count(); - cnt += delta; - write_c0_compare(cnt); -- irq_disable_hazard(); -+ compare_change_hazard(); - if ((int)(read_c0_count() - cnt) < 0) - break; - /* increase delta if the timer was already expired */ -@@ -205,11 +222,12 @@ - while ((int)(read_c0_count() - cnt) <= 0) - ; /* Wait for expiry */ - -+ compare_change_hazard(); - if (!c0_compare_int_pending()) - return 0; - - write_c0_compare(read_c0_count()); -- irq_disable_hazard(); -+ compare_change_hazard(); - if (c0_compare_int_pending()) - return 0; + return res; + } +@@ -99,22 +116,6 @@ + return (read_c0_cause() >> cp0_compare_irq) & 0x100; + } +-/* +- * Compare interrupt can be routed and latched outside the core, +- * so a single execution hazard barrier may not be enough to give +- * it time to clear as seen in the Cause register. 4 time the +- * pipeline depth seems reasonably conservative, and empirically +- * works better in configurations with high CPU/bus clock ratios. +- */ +- +-#define compare_change_hazard() \ +- do { \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- } while (0) +- + int c0_compare_int_usable(void) + { + unsigned int delta; -- cgit v1.2.3