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Re: [Qemu-devel] [PATCH v3 2/5] target/arm: Add predicate registers for
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH v3 2/5] target/arm: Add predicate registers for SVE |
Date: |
Tue, 23 Jan 2018 11:46:55 +0000 |
User-agent: |
mu4e 1.0-alpha3; emacs 26.0.91 |
Richard Henderson <address@hidden> writes:
> Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
> ---
> target/arm/cpu.h | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/target/arm/cpu.h b/target/arm/cpu.h
> index 1854fe51a8..3f4f6b6144 100644
> --- a/target/arm/cpu.h
> +++ b/target/arm/cpu.h
> @@ -188,6 +188,13 @@ typedef struct ARMVectorReg {
> uint64_t d[2 * ARM_MAX_VQ] QEMU_ALIGNED(16);
> } ARMVectorReg;
>
> +/* In AArch32 mode, predicate registers do not exist at all. */
> +#ifdef TARGET_AARCH64
> +typedef struct ARMPredicateReg {
> + uint64_t p[2 * ARM_MAX_VQ / 8] QEMU_ALIGNED(16);
> +} ARMPredicateReg;
> +#endif
> +
>
> typedef struct CPUARMState {
> /* Regs for current mode. */
> @@ -515,6 +522,11 @@ typedef struct CPUARMState {
> struct {
> ARMVectorReg zregs[32];
>
> +#ifdef TARGET_AARCH64
> + /* Store FFR as pregs[16] to make it easier to treat as any other.
> */
> + ARMPredicateReg pregs[17];
> +#endif
> +
> uint32_t xregs[16];
> /* We store these fpcsr fields separately for convenience. */
> int vec_len;
--
Alex Bennée
- [Qemu-devel] [PATCH v3 0/5] target/arm: Preparatory work for SVE, Richard Henderson, 2018/01/22
- [Qemu-devel] [PATCH v3 2/5] target/arm: Add predicate registers for SVE, Richard Henderson, 2018/01/22
- [Qemu-devel] [PATCH v3 1/5] target/arm: Expand vector registers for SVE, Richard Henderson, 2018/01/22
- [Qemu-devel] [PATCH v3 3/5] target/arm: Add SVE to migration state, Richard Henderson, 2018/01/22
- [Qemu-devel] [PATCH v3 4/5] target/arm: Add ZCR_ELx, Richard Henderson, 2018/01/22
- [Qemu-devel] [PATCH v3 5/5] target/arm: Add SVE state to TB->FLAGS, Richard Henderson, 2018/01/22