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| author | Marc Zyngier <marc.zyngier@arm.com> | 2012-11-12 13:24:27 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2012-12-05 11:26:50 +0000 |
| commit | cfc5180e5a1b5f41f4936c4945a395f4d8885d66 (patch) | |
| tree | c6a76b685652345861e43d86e20aa1925825eabe /arch/arm64/kernel | |
| parent | 7dbfbe5b2f5fc01fb0a19a0d58820ba4ebb07884 (diff) | |
| download | kernel_goldelico_gta04-cfc5180e5a1b5f41f4936c4945a395f4d8885d66.zip kernel_goldelico_gta04-cfc5180e5a1b5f41f4936c4945a395f4d8885d66.tar.gz kernel_goldelico_gta04-cfc5180e5a1b5f41f4936c4945a395f4d8885d66.tar.bz2 | |
arm64: move FP-SIMD save/restore code to a macro
In order to be able to reuse the save-restore code in KVM, move
it to a pair of macros, similar to what the 32bit code does.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/entry-fpsimd.S | 43 |
1 files changed, 3 insertions, 40 deletions
diff --git a/arch/arm64/kernel/entry-fpsimd.S b/arch/arm64/kernel/entry-fpsimd.S index 17988a6..6a27cd6 100644 --- a/arch/arm64/kernel/entry-fpsimd.S +++ b/arch/arm64/kernel/entry-fpsimd.S @@ -20,6 +20,7 @@ #include <linux/linkage.h> #include <asm/assembler.h> +#include <asm/fpsimdmacros.h> /* * Save the FP registers. @@ -27,26 +28,7 @@ * x0 - pointer to struct fpsimd_state */ ENTRY(fpsimd_save_state) - stp q0, q1, [x0, #16 * 0] - stp q2, q3, [x0, #16 * 2] - stp q4, q5, [x0, #16 * 4] - stp q6, q7, [x0, #16 * 6] - stp q8, q9, [x0, #16 * 8] - stp q10, q11, [x0, #16 * 10] - stp q12, q13, [x0, #16 * 12] - stp q14, q15, [x0, #16 * 14] - stp q16, q17, [x0, #16 * 16] - stp q18, q19, [x0, #16 * 18] - stp q20, q21, [x0, #16 * 20] - stp q22, q23, [x0, #16 * 22] - stp q24, q25, [x0, #16 * 24] - stp q26, q27, [x0, #16 * 26] - stp q28, q29, [x0, #16 * 28] - stp q30, q31, [x0, #16 * 30]! - mrs x8, fpsr - str w8, [x0, #16 * 2] - mrs x8, fpcr - str w8, [x0, #16 * 2 + 4] + fpsimd_save x0, 8 ret ENDPROC(fpsimd_save_state) @@ -56,25 +38,6 @@ ENDPROC(fpsimd_save_state) * x0 - pointer to struct fpsimd_state */ ENTRY(fpsimd_load_state) - ldp q0, q1, [x0, #16 * 0] - ldp q2, q3, [x0, #16 * 2] - ldp q4, q5, [x0, #16 * 4] - ldp q6, q7, [x0, #16 * 6] - ldp q8, q9, [x0, #16 * 8] - ldp q10, q11, [x0, #16 * 10] - ldp q12, q13, [x0, #16 * 12] - ldp q14, q15, [x0, #16 * 14] - ldp q16, q17, [x0, #16 * 16] - ldp q18, q19, [x0, #16 * 18] - ldp q20, q21, [x0, #16 * 20] - ldp q22, q23, [x0, #16 * 22] - ldp q24, q25, [x0, #16 * 24] - ldp q26, q27, [x0, #16 * 26] - ldp q28, q29, [x0, #16 * 28] - ldp q30, q31, [x0, #16 * 30]! - ldr w8, [x0, #16 * 2] - ldr w9, [x0, #16 * 2 + 4] - msr fpsr, x8 - msr fpcr, x9 + fpsimd_restore x0, 8 ret ENDPROC(fpsimd_load_state) |