mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 01:19:49 +00:00
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> |
||
|---|---|---|
| .. | ||
| arm32 | ||
| bcu | ||
| boot-mode | ||
| clk | ||
| debug-uart | ||
| dram | ||
| early-clk | ||
| early-pinctrl | ||
| init | ||
| memconf | ||
| pinctrl | ||
| pll | ||
| sbc | ||
| board_common.c | ||
| board_early_init_f.c | ||
| board_early_init_r.c | ||
| board_late_init.c | ||
| boards.c | ||
| cpu_info.c | ||
| dram_init.c | ||
| init.h | ||
| Kconfig | ||
| Makefile | ||
| micro-support-card.c | ||
| micro-support-card.h | ||
| print_misc_info.c | ||
| reset.c | ||
| sc-regs.h | ||
| sc64-regs.h | ||
| sg-regs.h | ||
| soc-info.h | ||
| soc_info.c | ||