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| author | Ryan S. Arnold <rsa@us.ibm.com> | 2006-03-27 21:25:16 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-28 16:45:26 +1100 |
| commit | 45d607ed92695d7543f5e1fc5b133cd69834e3e4 (patch) | |
| tree | c82b6ae1f9b9827894021797a85cbcbe6efca08e /arch/powerpc/platforms/pseries/hvconsole.c | |
| parent | 11089f08d9dd8b89cd07d6f126ccb4849e3c61a3 (diff) | |
| download | linux-rpi3-45d607ed92695d7543f5e1fc5b133cd69834e3e4.tar.gz linux-rpi3-45d607ed92695d7543f5e1fc5b133cd69834e3e4.tar.bz2 linux-rpi3-45d607ed92695d7543f5e1fc5b133cd69834e3e4.zip | |
[PATCH] powerpc: hvc_console updates
These are some updates from both Ryan and Arnd for the hvc_console
driver:
The main point is to enable the inclusion of a console driver
for rtas, which is currrently needed for the cell platform.
Also shuffle around some data-type declarations and moves some
functions out of include/asm-ppc64/hvconsole.h and into a new
drivers/char/hvc_console.h file.
Signed-off-by: "Ryan S. Arnold" <rsa@us.ibm.com>
Signed-off-by: Arnd Bergmann <abergman@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/hvconsole.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/hvconsole.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c index 138e128a3886..ba6befd96636 100644 --- a/arch/powerpc/platforms/pseries/hvconsole.c +++ b/arch/powerpc/platforms/pseries/hvconsole.c @@ -62,6 +62,11 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count) unsigned long *lbuf = (unsigned long *) buf; long ret; + + /* hcall will ret H_PARAMETER if 'count' exceeds firmware max.*/ + if (count > MAX_VIO_PUT_CHARS) + count = MAX_VIO_PUT_CHARS; + ret = plpar_hcall_norets(H_PUT_TERM_CHAR, vtermno, count, lbuf[0], lbuf[1]); if (ret == H_Success) |