| Message ID | 20200922101225.183554-2-andre.przywara@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | perf: arm64: Support ARMv8.3-SPE extensions | expand |
Hi Andre, On Tue, Sep 22, 2020 at 11:12:21AM +0100, Andre Przywara wrote: > The ARMv8.3-SPE extension adds some new bits for the event filter. > > Remove bits 11, 17 and 18 from the RES0 mask, so they can be used > correctly. > > Signed-off-by: Andre Przywara <andre.przywara@arm.com> > --- > arch/arm64/include/asm/sysreg.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h > index 554a7e8ecb07..efca4ee28671 100644 > --- a/arch/arm64/include/asm/sysreg.h > +++ b/arch/arm64/include/asm/sysreg.h > @@ -281,7 +281,7 @@ > #define SYS_PMSFCR_EL1_ST_SHIFT 18 > > #define SYS_PMSEVFR_EL1 sys_reg(3, 0, 9, 9, 5) > -#define SYS_PMSEVFR_EL1_RES0 0x0000ffff00ff0f55UL > +#define SYS_PMSEVFR_EL1_RES0 0x0000ffff00f90755UL This patch is duplicate with Wei Li's patch [1]. You could see there have some discussion and Will gave suggestions [2] for the patch, this would be a good start point to continue this work. Thanks, Leo [1] https://www.spinics.net/lists/arm-kernel/msg825364.html [2] https://www.spinics.net/lists/arm-kernel/msg835733.html > > #define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6) > #define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0 > -- > 2.17.1 >
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 554a7e8ecb07..efca4ee28671 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -281,7 +281,7 @@ #define SYS_PMSFCR_EL1_ST_SHIFT 18 #define SYS_PMSEVFR_EL1 sys_reg(3, 0, 9, 9, 5) -#define SYS_PMSEVFR_EL1_RES0 0x0000ffff00ff0f55UL +#define SYS_PMSEVFR_EL1_RES0 0x0000ffff00f90755UL #define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6) #define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0
The ARMv8.3-SPE extension adds some new bits for the event filter. Remove bits 11, 17 and 18 from the RES0 mask, so they can be used correctly. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- arch/arm64/include/asm/sysreg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)