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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2018-01-09 11:51:58 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2018-01-09 21:08:52 +0100 |
| commit | 448fadc8a4a36cad560e07b4fbc94cba49526956 (patch) | |
| tree | a65a6b2f137bcd2acb146249f4c464992a1528e1 /arch/arm64/mm/cache.S | |
| parent | KVM: arm/arm64: Drop vcpu parameter from guest cache maintenance operartions (diff) | |
| download | linux-448fadc8a4a36cad560e07b4fbc94cba49526956.tar.xz linux-448fadc8a4a36cad560e07b4fbc94cba49526956.zip | |
arm64: mm: Add additional parameter to uaccess_ttbr0_enable
Add an extra temporary register parameter to uaccess_ttbr0_enable which
is about to be required for arm64 PAN support.
This patch doesn't introduce any functional change but ensures that the
kernel compiles once the KVM/ARM tree is merged with the arm64 tree by
ensuring a trivially mergable conflict with commit
27a921e75711d924617269e0ba4adb8bae9fd0d1
("arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN").
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/mm/cache.S')
| -rw-r--r-- | arch/arm64/mm/cache.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S index bedd23da83f4..5a52811f47e9 100644 --- a/arch/arm64/mm/cache.S +++ b/arch/arm64/mm/cache.S @@ -49,7 +49,7 @@ ENTRY(flush_icache_range) * - end - virtual end address of region */ ENTRY(__flush_cache_user_range) - uaccess_ttbr0_enable x2, x3 + uaccess_ttbr0_enable x2, x3, x4 dcache_line_size x2, x3 sub x3, x2, #1 bic x4, x0, x3 @@ -80,7 +80,7 @@ ENDPROC(__flush_cache_user_range) * - end - virtual end address of region */ ENTRY(invalidate_icache_range) - uaccess_ttbr0_enable x2, x3 + uaccess_ttbr0_enable x2, x3, x4 invalidate_icache_by_line x0, x1, x2, x3, 2f mov x0, xzr |