diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2022-06-08 19:38:57 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-06-08 19:38:57 +0100 |
| commit | 886902ece71b5e795fea3e052a32f047d2f8fe33 (patch) | |
| tree | 4d5e81ad570d44e4b574c4b3f272bb8eb07a829c /target/arm/cpu.h | |
| parent | 9b5f422559a528f4117aa9c3098fddf3d7c535ba (diff) | |
target/arm: Use uint32_t instead of bitmap for sve vq's
The bitmap need only hold 15 bits; bitmap is over-complicated.
We can simplify operations quite a bit with plain logical ops.
The introduction of SVE_VQ_POW2_MAP eliminates the need for
looping in order to search for powers of two. Simply perform
the logical ops and use count leading or trailing zeros as
required to find the result.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220607203306.657998-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index f5af88b686..73f24a5760 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1041,9 +1041,9 @@ struct ArchCPU { * Bits set in sve_vq_supported represent valid vector lengths for * the CPU type. */ - DECLARE_BITMAP(sve_vq_map, ARM_MAX_VQ); - DECLARE_BITMAP(sve_vq_init, ARM_MAX_VQ); - DECLARE_BITMAP(sve_vq_supported, ARM_MAX_VQ); + uint32_t sve_vq_map; + uint32_t sve_vq_init; + uint32_t sve_vq_supported; /* Generic timer counter frequency, in Hz */ uint64_t gt_cntfrq_hz; |