diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2016-10-14 00:58:59 +0200 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-10-24 18:24:47 +0200 |
| commit | cf986d470208fbdd68b6934a86ccd81c04408484 (patch) | |
| tree | d87390ab95834343e6ef9236d847e2f91d5f3720 /arch/arc/include/asm/cache.h | |
| parent | ARC: syscall for userspace cmpxchg assist (diff) | |
| download | linux-cf986d470208fbdd68b6934a86ccd81c04408484.tar.xz linux-cf986d470208fbdd68b6934a86ccd81c04408484.zip | |
ARCv2: IOC: use @ioc_enable not @ioc_exist where intended
if user disables IOC from debugger at startup (by clearing @ioc_enable),
@ioc_exists is cleared too. This means boot prints don't capture the
fact that IOC was present but disabled which could be misleading.
So invert how we use @ioc_enable and @ioc_exists and make it more
canonical. @ioc_exists represent whether hardware is present or not and
stays same whether enabled or not. @ioc_enable is still user driven,
but will be auto-disabled if IOC hardware is not present, i.e. if
@ioc_exist=0. This is opposite to what we were doing before, but much
clearer.
This means @ioc_enable is now the "exported" toggle in rest of code such
as dma mapping API.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include/asm/cache.h')
| -rw-r--r-- | arch/arc/include/asm/cache.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h index fb781e34f322..b3410ff6a62d 100644 --- a/arch/arc/include/asm/cache.h +++ b/arch/arc/include/asm/cache.h @@ -53,7 +53,7 @@ extern void arc_cache_init(void); extern char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len); extern void read_decode_cache_bcr(void); -extern int ioc_exists; +extern int ioc_enable; extern unsigned long perip_base, perip_end; #endif /* !__ASSEMBLY__ */ |