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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2014-02-24 15:26:29 +0100
committerMark Brown <broonie@linaro.org>2014-06-19 12:34:28 +0100
commit92732accb6c99d8a0ae32897f04e0711962c40cc (patch)
treef97b09f812b9477f38e671fd7de9a154b4b8acf5 /arch/arm64/kernel/traps.c
parent8ec3883b5accf54406952962e09fd5db0fae8ecc (diff)
downloadlinux-linaro-stable-92732accb6c99d8a0ae32897f04e0711962c40cc.tar.gz
arm64: add support for kernel mode NEON in interrupt contextv3.10/topic/arm64-fpsimd
This patch modifies kernel_neon_begin() and kernel_neon_end(), so they may be called from any context. To address the case where only a couple of registers are needed, kernel_neon_begin_partial(u32) is introduced which takes as a parameter the number of bottom 'n' NEON q-registers required. To mark the end of such a partial section, the regular kernel_neon_end() should be used. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> (cherry picked from commit 190f1ca85d071114930dd7abe6b5d103e9d5572f) Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'arch/arm64/kernel/traps.c')
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