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b=H4sIAKc8uGUC/x2MMQqAMAwAvyKZLbRRC/Ur4lA1aoaqJCiC+HeL0 3HD3QNKwqTQFg8IXay8b1lcWcC4xm0hw1N2QIu1dRhMlORro4mMkJ4ZFXrvGosBBw85O4Rmvv9 l17/vB+H+GhhiAAAA To: Catalin Marinas , Will Deacon Cc: Dave Martin , Jackson Cooper-Driver , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mark Brown X-Mailer: b4 0.13-dev-a684c X-Developer-Signature: v=1; a=openpgp-sha256; l=728; i=broonie@kernel.org; h=from:subject:message-id; bh=1NRtCpz4VPp/Yq/drptQbUJSG0OlGHk6ih4YpuLMwd0=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBluD9gOXKfNU7diV0+qg2AWrCO5D3yOccSHLyLgY29 UKDCaD+JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZbg/YAAKCRAk1otyXVSH0NWoB/ 0cENzSwzeB6KXF8FRfTtKsaIGfrtYF+2QzNvfF8lfAlrXEbQZ7t98iXQufi6L2v6Sj4rIY4S2+mlbL e0JOuyAKEAh72fjtSXhe9Asp7vRhCeB3ewhqAwlFIIV7cWTeG7q+iGJQ8N0FUVRV5y+JYAwMKh2GAK TmIb6xrbP9jFsA1SGn6+bd6JQTvEGdG0ulnl4XXk+B0VCzxuCLW9oXaaIpenxj/OKhwfaz1IBCmfK4 ylPL18vJim5MjA8NhoqAmcHtGBaKsh64PdAweC3NPxwyeLjXcC7q4Qzm/b62qG/d5bVHqj5xx3yuxU U/IVpx/m3+Mz13pMHOQi1SvoLQR1Nc X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789472209818664381 X-GMAIL-MSGID: 1789472209818664381 The fast model was recently changed to reset system registers to 0 on resume, exposing the fact that for SME we do not restore the configuration of traps for extensions that add state. Fix this. Signed-off-by: Mark Brown --- Mark Brown (2): arm64/sme: Restore SMCR on exit from suspend arm64/sme: Restore SMCR_EL1.EZT0 on exit from suspend arch/arm64/include/asm/fpsimd.h | 2 ++ arch/arm64/kernel/fpsimd.c | 15 +++++++++++++++ arch/arm64/kernel/suspend.c | 3 +++ 3 files changed, 20 insertions(+) --- base-commit: 41bccc98fb7931d63d03f326a746ac4d429c1dd3 change-id: 20240129-arm64-sme-resume-3266150292b6 Best regards,