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| author | Jakub Kicinski <kuba@kernel.org> | 2020-11-06 17:32:55 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-06 17:33:38 -0800 |
| commit | ae0d0bb29b311ee3c71c8796f76d309a3779c8d9 (patch) | |
| tree | ae8e6f90d4eec5594bf42fe7aa9c3d989fc4317e /arch/arm64/include/asm/sysreg.h | |
| parent | 9f32c27eb4fc4426eedd511697d921a932f7dba6 (diff) | |
| parent | bf3e76289cd28b87f679cd53e26d67fd708d718a (diff) | |
| download | linux-ae0d0bb29b311ee3c71c8796f76d309a3779c8d9.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/sysreg.h')
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index d52c1b3ce589..174817ba119c 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -1007,6 +1007,7 @@ #include <linux/build_bug.h> #include <linux/types.h> +#include <asm/alternative.h> #define __DEFINE_MRS_MSR_S_REGNUM \ " .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30\n" \ @@ -1095,6 +1096,14 @@ write_sysreg_s(__scs_new, sysreg); \ } while (0) +#define read_sysreg_par() ({ \ + u64 par; \ + asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ + par = read_sysreg(par_el1); \ + asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ + par; \ +}) + #endif #endif /* __ASM_SYSREG_H */ |