powerpc/pseries/mm: Introducing FW_FEATURE_BLOCK_REMOVE

This feature tells if the hcall H_BLOCK_REMOVE is available.

Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 7a051bd21f87912272f190eec30a50ae2d9e0d52..2aca2655fe30c0f07d821e2b63d392e2cd0b3814 100644 (file)
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -52,6 +52,7 @@
 #define FW_FEATURE_PRRN                ASM_CONST(0x0000000200000000)
 #define FW_FEATURE_DRMEM_V2    ASM_CONST(0x0000000400000000)
 #define FW_FEATURE_DRC_INFO    ASM_CONST(0x0000000800000000)
+#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
 
 #ifndef __ASSEMBLY__
 
@@ -69,7 +70,7 @@ enum {
                FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
                FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
                FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
-               FW_FEATURE_DRC_INFO,
+               FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE,
        FW_FEATURE_PSERIES_ALWAYS = 0,
        FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL,
        FW_FEATURE_POWERNV_ALWAYS = 0,

diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index a3bbeb43689e6e95d76c881b83d704e68de06979..1624501386f4ec1b59e22a484741ff35c2226269 100644 (file)
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -65,6 +65,7 @@ hypertas_fw_features_table[] = {
        {FW_FEATURE_SET_MODE,           "hcall-set-mode"},
        {FW_FEATURE_BEST_ENERGY,        "hcall-best-energy-1*"},
        {FW_FEATURE_HPT_RESIZE,         "hcall-hpt-resize"},
+       {FW_FEATURE_BLOCK_REMOVE,       "hcall-block-remove"},
 };
 
 /* Build up the firmware features bitmask using the contents of