Re: [PATCH 1/2] sizes.h: Add SZ_1T macro

From: Krzysztof Wilczyński
Date: Wed Dec 08 2021 - 16:19:20 EST


Hello Christophe,

> Today drivers/pci/controller/pci-xgene.c defines SZ_1T
>
> Move it into linux/sizes.h so that it can be re-used elsewhere.

Sounds like a good idea!

By the way, there was an earlier version of this patch, did something
happened? I think you simply extracted these changes from the other
series, correct?

> diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
> index 56d0d50338c8..716dcab5ca47 100644
> --- a/drivers/pci/controller/pci-xgene.c
> +++ b/drivers/pci/controller/pci-xgene.c
> @@ -49,7 +49,6 @@
> #define EN_REG 0x00000001
> #define OB_LO_IO 0x00000002
> #define XGENE_PCIE_DEVICEID 0xE004
> -#define SZ_1T (SZ_1G*1024ULL)
> #define PIPE_PHY_RATE_RD(src) ((0xc000 & (u32)(src)) >> 0xe)
>
> #define XGENE_V1_PCI_EXP_CAP 0x40
> diff --git a/include/linux/sizes.h b/include/linux/sizes.h
> index 1ac79bcee2bb..84aa448d8bb3 100644
> --- a/include/linux/sizes.h
> +++ b/include/linux/sizes.h
> @@ -47,6 +47,8 @@
> #define SZ_8G _AC(0x200000000, ULL)
> #define SZ_16G _AC(0x400000000, ULL)
> #define SZ_32G _AC(0x800000000, ULL)
> +
> +#define SZ_1T _AC(0x10000000000, ULL)
> #define SZ_64T _AC(0x400000000000, ULL)
>
> #endif /* __LINUX_SIZES_H__ */

Thank you!

Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx>

Krzysztof