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authorIan Munsie <imunsie@au1.ibm.com>2012-11-06 16:15:17 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-15 15:08:06 +1100
commitd8f48ecc0e81cbc52a8eac907e02916d98dbfb5a (patch)
treeeb51a7a834fea2dd9e82c701cf686a6d7920b881 /arch/powerpc/platforms/pseries
parentb0302722eec7c086a31de6e3d9789304ef21df7b (diff)
powerpc: Add set_mode hcall
This new hcall in POWER8 is used to set various resource mode registers. eg. it can set address translation mode on interrupt (note: partition wide scope) Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r--arch/powerpc/platforms/pseries/firmware.c1
-rw-r--r--arch/powerpc/platforms/pseries/plpar_wrappers.h6
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 0b0eff0cce3..7b56118f531 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -56,6 +56,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
{FW_FEATURE_VPHN, "hcall-vphn"},
+ {FW_FEATURE_SET_MODE, "hcall-set-mode"},
};
/* Build up the firmware features bitmask using the contents of
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 13e8cc43adf..44ad2140345 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -273,4 +273,10 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
lbuf[1]);
}
+/* Set various resource mode parameters */
+static inline long plpar_set_mode(unsigned long mflags, unsigned long resource,
+ unsigned long value1, unsigned long value2)
+{
+ return plpar_hcall_norets(H_SET_MODE, mflags, resource, value1, value2);
+}
#endif /* _PSERIES_PLPAR_WRAPPERS_H */