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| author | Laurentiu TUDOR <Laurentiu.Tudor@freescale.com> | 2013-07-03 17:13:15 +0300 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-08-07 18:38:06 -0500 |
| commit | 4e21b94c9c644c43223878f4c848e852743e789c (patch) | |
| tree | 70671b6571cb5c92752264d26a174cbc0d9034b8 /arch/powerpc/include/asm/epapr_hcalls.h | |
| parent | f31dd9443afd35696a833c2a32d584a9257abd40 (diff) | |
| download | op-kernel-dev-4e21b94c9c644c43223878f4c848e852743e789c.zip op-kernel-dev-4e21b94c9c644c43223878f4c848e852743e789c.tar.gz | |
powerpc/85xx: Move ePAPR paravirt initialization earlier
At console init, when the kernel tries to flush the log buffer
the ePAPR byte-channel based console write fails silently,
losing the buffered messages.
This happens because The ePAPR para-virtualization init isn't
done early enough so that the hcall instruction to be set,
causing the byte-channel write hcall to be a nop.
To fix, change the ePAPR para-virt init to use early device
tree functions and move it in early init.
Signed-off-by: Laurentiu Tudor <Laurentiu.Tudor@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch/powerpc/include/asm/epapr_hcalls.h')
| -rw-r--r-- | arch/powerpc/include/asm/epapr_hcalls.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h index d3d6342..86b0ac7 100644 --- a/arch/powerpc/include/asm/epapr_hcalls.h +++ b/arch/powerpc/include/asm/epapr_hcalls.h @@ -105,6 +105,12 @@ extern bool epapr_paravirt_enabled; extern u32 epapr_hypercall_start[]; +#ifdef CONFIG_EPAPR_PARAVIRT +int __init epapr_paravirt_early_init(void); +#else +static inline int epapr_paravirt_early_init(void) { return 0; } +#endif + /* * We use "uintptr_t" to define a register because it's guaranteed to be a * 32-bit integer on a 32-bit platform, and a 64-bit integer on a 64-bit |
