diff options
| author | Joel Stanley <joel@jms.id.au> | 2014-03-29 08:38:38 +1100 |
|---|---|---|
| committer | Eli Qiao <taget@linux.vnet.ibm.com> | 2014-03-31 11:16:42 +0800 |
| commit | 2fadb5567f4bd6baefe229b3894e006a8a03bca7 (patch) | |
| tree | 588f5ec35d90983de150bc45c8e182da3390035c | |
| parent | d40e89ae8fc0f539f074e20bdf529650d715dc51 (diff) | |
| download | powerkvm-2fadb5567f4bd6baefe229b3894e006a8a03bca7.tar.gz | |
powerpc/powernv: Add invalid OPAL call
This call will not be understood by OPAL, and cause it to add an error
to it's log. Among other things, this is useful for testing the
behaviour of the log as it fills up.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 3 |
3 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 1d6883a2ac11c..7bc3672df298d 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -87,6 +87,7 @@ extern int opal_enter_rtas(struct rtas_args *args, #define OPAL_ASYNC_COMPLETION -15 /* API Tokens (in r0) */ +#define OPAL_INVALID_CALL -1 #define OPAL_CONSOLE_WRITE 1 #define OPAL_CONSOLE_READ 2 #define OPAL_RTC_READ 3 @@ -884,6 +885,7 @@ int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, size_t length); int64_t opal_sensor_read(uint32_t sensor_hndl, int token, uint32_t *sensor_data); +int64_t opal_invalid_call(void); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index ca4697aa44071..a11ced31e9ceb 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -54,6 +54,7 @@ _STATIC(opal_return) mtcr r4; rfid +OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL); OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE); diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 659adc8090475..b175c852ace4f 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -704,3 +704,6 @@ void opal_shutdown(void) mdelay(10); } } + +/* Export this so that test modules can use it */ +EXPORT_SYMBOL_GPL(opal_invalid_call); |