From: Mark Brown <broonie@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com,
daniel.kiss@arm.com, david.spickett@arm.com,
luis.machado@arm.com, maz@kernel.org, richard.sandiford@arm.com,
sander.desmalen@arm.com, tabba@google.com, tamas.petz@arm.com,
tkjos@google.com, will@kernel.org, yury.khrustalev@arm.com
Subject: Re: [PATCH 04/20] arm64/fpsimd: signal: Mandate SVE payload for streaming-mode state
Date: Wed, 7 May 2025 09:59:43 +0900 [thread overview]
Message-ID: <aBqwf6PlByicvv87@finisterre.sirena.org.uk> (raw)
In-Reply-To: <20250506152523.1107431-5-mark.rutland@arm.com>
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On Tue, May 06, 2025 at 04:25:07PM +0100, Mark Rutland wrote:
> Non-streaming SVE state may be preserved without an SVE payload, in
> which case the SVE context only has a header with VL==0, and all state
> can be restored from the FPSIMD context. Streaming SVE state is always
> preserved with an SVE payload, where the SVE context header has VL!=0,
> and the SVE_SIG_FLAG_SM flag is set.
Reviewed-by: Mark Brown <broonie@kernel.org>
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next prev parent reply other threads:[~2025-05-07 5:01 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-06 15:25 [PATCH 00/20] arm64: FPSIMD/SVE/SME fixes + re-eanble SME Mark Rutland
2025-05-06 15:25 ` [PATCH 01/20] kselftest/arm64: fp-ptrace: Fix expected FPMR value when PSTATE.SM is changed Mark Rutland
2025-05-06 15:25 ` [PATCH 02/20] arm64/fpsimd: Do not discard modified SVE state Mark Rutland
2025-05-06 15:25 ` [PATCH 03/20] arm64/fpsimd: signal: Clear PSTATE.SM when restoring FPSIMD frame only Mark Rutland
2025-05-07 12:46 ` Will Deacon
2025-05-07 14:01 ` Mark Rutland
2025-05-07 14:39 ` Will Deacon
2025-05-06 15:25 ` [PATCH 04/20] arm64/fpsimd: signal: Mandate SVE payload for streaming-mode state Mark Rutland
2025-05-07 0:59 ` Mark Brown [this message]
2025-05-07 12:59 ` Will Deacon
2025-05-07 14:21 ` Mark Rutland
2025-05-07 14:29 ` Will Deacon
2025-05-07 15:02 ` Mark Rutland
2025-05-07 16:14 ` Will Deacon
2025-05-06 15:25 ` [PATCH 05/20] arm64/fpsimd: ptrace: Consistently handle partial writes to NT_ARM_(S)SVE Mark Rutland
2025-05-06 15:25 ` [PATCH 06/20] arm64/fpsimd: Clarify sve_sync_*() functions Mark Rutland
2025-05-06 15:25 ` [PATCH 07/20] arm64/fpsimd: Factor out {sve,sme}_state_size() helpers Mark Rutland
2025-05-06 15:25 ` [PATCH 08/20] arm64/fpsimd: Add task_smstop_sm() Mark Rutland
2025-05-06 15:25 ` [PATCH 09/20] arm64/fpsimd: signal: Use SMSTOP behaviour in setup_return() Mark Rutland
2025-05-06 15:25 ` [PATCH 10/20] arm64/fpsimd: Remove redundant task->mm check Mark Rutland
2025-05-06 15:25 ` [PATCH 11/20] arm64/fpsimd: Consistently preserve FPSIMD state during clone() Mark Rutland
2025-05-06 15:25 ` [PATCH 12/20] arm64/fpsimd: Clear PSTATE.SM " Mark Rutland
2025-05-06 15:25 ` [PATCH 13/20] arm64/fpsimd: Make clone() compatible with ZA lazy saving Mark Rutland
2025-05-07 14:58 ` Will Deacon
2025-05-07 15:22 ` Mark Rutland
2025-05-07 16:11 ` Will Deacon
2025-05-07 17:21 ` Mark Rutland
2025-05-07 15:57 ` Yury Khrustalev
2025-05-06 15:25 ` [PATCH 14/20] arm64/fpsimd: ptrace/prctl: Ensure VL changes do not resurrect stale data Mark Rutland
2025-05-06 15:25 ` [PATCH 15/20] arm64/fpsimd: ptrace/prctl: Ensure VL changes leave task in a valid state Mark Rutland
2025-05-07 16:12 ` Will Deacon
2025-05-07 17:10 ` Mark Rutland
2025-05-08 10:31 ` Will Deacon
2025-05-06 15:25 ` [PATCH 16/20] arm64/fpsimd: ptrace: Save task state before generating SVE header Mark Rutland
2025-05-06 15:25 ` [PATCH 17/20] arm64/fpsimd: ptrace: Do not present register data for inactive mode Mark Rutland
2025-05-06 15:25 ` [PATCH 18/20] arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state Mark Rutland
2025-05-07 1:09 ` Mark Brown
2025-05-06 15:25 ` [PATCH 19/20] arm64/fpsimd: ptrace: Gracefully handle errors Mark Rutland
2025-05-07 16:32 ` Will Deacon
2025-05-08 12:12 ` Mark Rutland
2025-05-06 15:25 ` [PATCH 20/20] arm64/fpsimd: Allow CONFIG_ARM64_SME to be selected Mark Rutland
2025-05-07 1:48 ` [PATCH 00/20] arm64: FPSIMD/SVE/SME fixes + re-eanble SME Mark Brown
2025-05-07 9:56 ` Mark Rutland
2025-05-07 11:26 ` Mark Brown
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