Date: Thu, 08 Nov 2018 19:57:20 +0000
From: bugzilla-noreply@freebsd.org
To: emulation@FreeBSD.org
Subject: [Bug 206711] Export linux_ioctl_{,un}register_handler from linux64 for x11/nvidia-driver
Message-ID: <bug-206711-4077-OZ79ieqDME@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-206711-4077@https.bugs.freebsd.org/bugzilla/>
References: <bug-206711-4077@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206711 --- Comment #10 from commit-hook@freebsd.org --- A commit references this bug: Author: tijl Date: Thu Nov 8 19:56:30 UTC 2018 New revision: 340258 URL: https://svnweb.freebsd.org/changeset/base/340258 Log: MFC r340181, r340185: On amd64 both Linux compat modules, linux.ko and linux64.ko, provide linux_ioctl_(un)register_handler that allows other driver modules to register ioctl handlers. The ioctl syscall implementation in each Linux compat module iterates over the list of handlers and forwards the call to the appropriate driver. Because the registration functions have the same name in each module it is not possible for a driver to support both 32 and 64 bit linux compatibility. Move the list of ioctl handlers to linux_common.ko so it is shared by both Linux modules and all drivers receive both 32 and 64 bit ioctl calls with one registration. These ioctl handlers normally forward the call to the FreeBSD ioctl handler which can handle both 32 and 64 bit. Keep the special COMPAT_LINUX32 ioctl handlers in linux.ko in a separate list for now and let the ioctl syscall iterate over that list first. Later, COMPAT_LINUX32 support can be added to the 64 bit ioctl handlers via a runtime check for ILP32 like is done for COMPAT_FREEBSD32 and then this separate list would disappear again. That is a much bigger effort however and this commit is meant to be MFCable. This enables linux64 support in x11/nvidia-driver*. PR: 206711 Reviewed by: kib Approved by: re (gjb) Changes: _U stable/12/ stable/12/sys/amd64/linux32/linux32_sysvec.c stable/12/sys/compat/linux/linux_common.c stable/12/sys/compat/linux/linux_ioctl.c stable/12/sys/compat/linux/linux_ioctl.h --=20 You are receiving this mail because: You are on the CC list for the bug.=
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