diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-07-21 17:08:14 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-07-21 17:08:14 +0000 |
commit | 546b5ed544503182a9b3e981bc11feebd6042b21 (patch) | |
tree | 10ae3895974888be85ce09abee24fe67b5fbd813 /target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch | |
parent | 541dcce6ec450a2aceaf1b42b67b16ebfc9730aa (diff) |
surprise :p
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11894 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch')
-rw-r--r-- | target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch b/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch new file mode 100644 index 0000000000..0f1bc95ada --- /dev/null +++ b/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch @@ -0,0 +1,45 @@ +--- a/include/asm-mips/hazards.h ++++ b/include/asm-mips/hazards.h +@@ -64,7 +64,7 @@ + _ehb + ) + ASMMACRO(back_to_back_c0_hazard, +- _ehb ++ _ssnop; _ssnop; _ssnop; _ehb + ) + /* + * gcc has a tradition of misscompiling the previous construct using the +--- a/arch/mips/kernel/cevt-r4k.c ++++ b/arch/mips/kernel/cevt-r4k.c +@@ -187,7 +187,7 @@ + */ + if (c0_compare_int_pending()) { + write_c0_compare(read_c0_count()); +- irq_disable_hazard(); ++ back_to_back_c0_hazard(); + if (c0_compare_int_pending()) + return 0; + } +@@ -196,7 +196,7 @@ + cnt = read_c0_count(); + cnt += delta; + write_c0_compare(cnt); +- irq_disable_hazard(); ++ back_to_back_c0_hazard(); + if ((int)(read_c0_count() - cnt) < 0) + break; + /* increase delta if the timer was already expired */ +@@ -205,11 +205,12 @@ + while ((int)(read_c0_count() - cnt) <= 0) + ; /* Wait for expiry */ + ++ back_to_back_c0_hazard(); + if (!c0_compare_int_pending()) + return 0; + + write_c0_compare(read_c0_count()); +- irq_disable_hazard(); ++ back_to_back_c0_hazard(); + if (c0_compare_int_pending()) + return 0; + |