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| author | Ludovic Pouzenc <ludovic@pouzenc.fr> | 2018-09-14 22:25:09 +0200 |
|---|---|---|
| committer | Ludovic Pouzenc <ludovic@pouzenc.fr> | 2018-09-14 22:25:09 +0200 |
| commit | 3362d9fb3a94d0909b79c290abc8db6abe4cca21 (patch) | |
| tree | 35f9e4dfaeb691fe09fcd95b45dc440f0338a1b5 /target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch | |
| parent | 51e1f1476f74d6788b106a066dfebd8ec6ac1bd9 (diff) | |
| download | mtk-20170518-3362d9fb3a94d0909b79c290abc8db6abe4cca21.zip mtk-20170518-3362d9fb3a94d0909b79c290abc8db6abe4cca21.tar.gz mtk-20170518-3362d9fb3a94d0909b79c290abc8db6abe4cca21.tar.bz2 | |
target/linux : drop many arch
Diffstat (limited to 'target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch')
| -rw-r--r-- | target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch b/target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch deleted file mode 100644 index 7078b37..0000000 --- a/target/linux/amazon/patches-3.3/010-mips_clocksource_init_war.patch +++ /dev/null @@ -1,33 +0,0 @@ ---- a/arch/mips/kernel/cevt-r4k.c -+++ b/arch/mips/kernel/cevt-r4k.c -@@ -23,6 +23,22 @@ - - #ifndef CONFIG_MIPS_MT_SMTC - -+/* -+ * 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) -+ - static int mips_next_event(unsigned long delta, - struct clock_event_device *evt) - { -@@ -32,6 +48,7 @@ static int mips_next_event(unsigned long - cnt = read_c0_count(); - cnt += delta; - write_c0_compare(cnt); -+ compare_change_hazard(); - res = ((int)(read_c0_count() - cnt) >= 0) ? -ETIME : 0; - return res; - } |
