[PATCH V9 1/8] powerpc/firmware: Add definitions for new firmware features.

[Nathan Fontenot]

On 12/07/2016 01:14 AM, Michael Bringmann wrote:
> 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 <mwb at linux.vnet.ibm.com>

Reviewed-by: Nathan Fontenot <nfont at linux.vnet.ibm.com>

> ---
>  arch/powerpc/include/asm/firmware.h       |    5 ++++-
>  arch/powerpc/include/asm/prom.h           |    2 ++
>  arch/powerpc/platforms/pseries/firmware.c |    2 ++
>  3 files changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
> index 1e0b5a5..6b5cf38 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..bc7c4b5 100644
> --- a/arch/powerpc/include/asm/prom.h
> +++ b/arch/powerpc/include/asm/prom.h
> @@ -155,6 +155,8 @@ 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   */
> 
>  /* Option Vector 6: IBM PAPR hints */
>  #define OV6_LINUX		0x02	/* Linux is our OS */
> diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
> index ea7f09b..d2d23f5 100644
> --- a/arch/powerpc/platforms/pseries/firmware.c
> +++ b/arch/powerpc/platforms/pseries/firmware.c
> @@ -113,6 +113,8 @@ struct vec5_fw_feature {
>  vec5_fw_features_table[] = {
>  	{FW_FEATURE_TYPE1_AFFINITY,	OV5_TYPE1_AFFINITY},
>  	{FW_FEATURE_PRRN,		OV5_PRRN},
> +	{FW_FEATURE_DYN_MEM_V2,		OV5_DYN_MEM_V2},
> +	{FW_FEATURE_DRC_INFO,		OV5_DRC_INFO},
>  };
> 
>  static void __init fw_vec5_feature_init(const char *vec5, unsigned long len)
>