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| author |   Cédric Le Goater <clg@kaod.org> | 2021-11-05 11:26:35 +0100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-11-25 11:25:31 +1100 |
| commit | 1e7684dc4fc70271c8bf86d397bd4fbfb3581e65 (patch) | |
| tree | 5a1d7f358d1583a33998b7bf5422d6eccfd671e6 /arch/powerpc/sysdev/xive/xive-internal.h | |
| parent | powerpc/xive: Add a kernel parameter for StoreEOI (diff) | |
| download | linux-dev-1e7684dc4fc70271c8bf86d397bd4fbfb3581e65.tar.xz linux-dev-1e7684dc4fc70271c8bf86d397bd4fbfb3581e65.zip | |
powerpc/xive: Add a debugfs toggle for save-restore
On POWER10, the automatic "save & restore" of interrupt context is
always available. Provide a way to deactivate it for tests or
performance.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211105102636.1016378-11-clg@kaod.org
Diffstat (limited to 'arch/powerpc/sysdev/xive/xive-internal.h')
| -rw-r--r-- | arch/powerpc/sysdev/xive/xive-internal.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xive/xive-internal.h b/arch/powerpc/sysdev/xive/xive-internal.h index 504e7edce358..e0941bc64430 100644 --- a/arch/powerpc/sysdev/xive/xive-internal.h +++ b/arch/powerpc/sysdev/xive/xive-internal.h @@ -72,5 +72,6 @@ static inline u32 xive_alloc_order(u32 queue_shift) } extern bool xive_cmdline_disabled; +extern bool xive_has_save_restore; #endif /* __XIVE_INTERNAL_H */ |