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Date:      Mon, 11 Dec 2023 14:16:38 GMT
From:      Mark Johnston <markj@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: ce2f34ade8b7 - main - arm: Disable the VFP during boot
Message-ID:  <202312111416.3BBEGcrP072079@gitrepo.freebsd.org>

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The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=ce2f34ade8b787b068085fa8a8ddd295b06c2737

commit ce2f34ade8b787b068085fa8a8ddd295b06c2737
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2023-12-11 14:08:49 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2023-12-11 14:08:49 +0000

    arm: Disable the VFP during boot
    
    The VFP code expects the kernel to boot with VFP disabled, but some
    boards will boot with it enabled.  Make sure that vfp_init() disables
    the VFP on each CPU during boot.
    
    PR:             273752
    Reviewed by:    andrew
    Diagnosed by:   Thomas Skibo <thomas-bsd@skibo.net>
    MFC after:      1 week
---
 sys/arm/arm/vfp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/arm/arm/vfp.c b/sys/arm/arm/vfp.c
index bbcb468391b6..6c398a7a3eaa 100644
--- a/sys/arm/arm/vfp.c
+++ b/sys/arm/arm/vfp.c
@@ -181,6 +181,8 @@ vfp_init(void)
 				elf_hwcap |= HWCAP_VFPv4;
 		}
 
+		vfp_disable();
+
 		/* initialize the coprocess 10 and 11 calls
 		 * These are called to restore the registers and enable
 		 * the VFP hardware.



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