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c09d29057a
v7_maint_dcache_all() does not work reliable when build with gcc6, see: https://bugzilla.redhat.com/show_bug.cgi?id=1318788 While debugging this I learned that v7_maint_dcache_all() is unreliable when build with gcc5 too when it is marked as noinline. This commit fixes the reliability issues by replacing the C-code with the ready to use asm implementation from the kernel. Given that this code when written as C-code clearly is quite fragile (also see the existing comments about the C-code being the way it is to get optimal assembly) and that we have a proven asm alternative, I believe that this is the best solution. Note that we actually already had a copy of the kernel's v7_flush_dcache_all() before this commit in arch/arm/mach-uniphier/arm32/lowlevel_init.S. This commit moves that code arch/arm/cpu/armv7/cache_v7_asm.S, renames it to __v7_flush_dcache_all(), and adds a v7_flush_dcache_all() wrapper which saves / restores the clobbered registers for use from C-code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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| .. | ||
| am33xx | ||
| bcm281xx | ||
| bcmcygnus | ||
| bcmnsp | ||
| iproc-common | ||
| kona-common | ||
| ls102xa | ||
| mx5 | ||
| mx6 | ||
| mx7 | ||
| omap-common | ||
| omap3 | ||
| omap4 | ||
| omap5 | ||
| rmobile | ||
| s5p-common | ||
| stv0991 | ||
| sunxi | ||
| vf610 | ||
| arch_timer.c | ||
| cache_v7.c | ||
| cache_v7_asm.S | ||
| config.mk | ||
| cp15.c | ||
| cpu.c | ||
| Kconfig | ||
| lowlevel_init.S | ||
| Makefile | ||
| nonsec_virt.S | ||
| psci.S | ||
| start.S | ||
| syslib.c | ||
| virt-dt.c | ||
| virt-v7.c | ||