Re: [PATCH V3 1/8] powerpc/firmware: Add definitions for new firmware features.
From: Bharata B Rao <hidden>
Date: 2016-08-17 07:34:42
On Tue, Aug 2, 2016 at 6:12 AM, Michael Bringmann [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Firmware Features: Define new bit flags representing the presence of new device tree properties "ibm,drc-info", and "ibm,dynamic-memory-v2". These flags are used to tell the front end processor when the Linux kernel supports the new properties, and by the front end processor to tell the Linux kernel that the new properties are present in the devie tree. Signed-off-by: Michael Bringmann <redacted> ---diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h index b062924..a9d66d5 100644 --- a/arch/powerpc/include/asm/firmware.h +++ b/arch/powerpc/include/asm/firmware.h@@ -51,6 +51,8 @@ #define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000) #define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000) #define FW_FEATURE_PRRN ASM_CONST(0x0000000200000000) +#define FW_FEATURE_DYN_MEM_V2 ASM_CONST(0x0000000400000000) +#define FW_FEATURE_DRC_INFO ASM_CONST(0x0000000800000000) #ifndef __ASSEMBLY__@@ -66,7 +68,8 @@ enum { FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR | FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO | FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY | - FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN, + FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN | + FW_FEATURE_DYN_MEM_V2 | FW_FEATURE_DRC_INFO, FW_FEATURE_PSERIES_ALWAYS = 0, FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL, FW_FEATURE_POWERNV_ALWAYS = 0,diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h index 7f436ba..b9a1534 100644 --- a/arch/powerpc/include/asm/prom.h +++ b/arch/powerpc/include/asm/prom.h@@ -155,6 +203,8 @@ struct of_drconf_cell { #define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */ #define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */ #define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */ +#define OV5_DYN_MEM_V2 0x1680 /* Redef Prop Structures: dyn-mem-v2 */ +#define OV5_DRC_INFO 0x1640 /* Redef Prop Structures: drc-info */
Shouldn't these two features be set in ibm_architecture_vec[] so that guest firmware knows when to generate these two new device tree properties ? Regards, Bharata.