From owner-freebsd-arch@freebsd.org Mon Feb 13 19:07:43 2017 Return-Path: Delivered-To: freebsd-arch@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 61EA8CDDDE2 for ; Mon, 13 Feb 2017 19:07:43 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from mail.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 42003170B; Mon, 13 Feb 2017 19:07:43 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from ralph.baldwin.cx (c-73-231-226-104.hsd1.ca.comcast.net [73.231.226.104]) by mail.baldwin.cx (Postfix) with ESMTPSA id 42AE610A7B9; Mon, 13 Feb 2017 14:07:42 -0500 (EST) From: John Baldwin To: freebsd-arch@freebsd.org Cc: Warner Losh , Sean Bruno Subject: Re: Thinning out GENERIC Date: Mon, 13 Feb 2017 10:33:26 -0800 Message-ID: <2553875.ilSvFZYQZ6@ralph.baldwin.cx> User-Agent: KMail/4.14.10 (FreeBSD/11.0-STABLE; KDE/4.14.10; amd64; ; ) In-Reply-To: References: <34e4e9bd-c7a8-e3e2-4cef-98a691ea7944@freebsd.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (mail.baldwin.cx); Mon, 13 Feb 2017 14:07:42 -0500 (EST) X-Virus-Scanned: clamav-milter 0.99.2 at mail.baldwin.cx X-Virus-Status: Clean X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Feb 2017 19:07:43 -0000 On Monday, February 13, 2017 10:51:36 AM Warner Losh wrote: > [[ It isn't just GENERIC, it's in every single kernel ]] > > On Sun, Feb 12, 2017 at 7:59 AM, Sean Bruno wrote: > > Index: sys/conf/files > > =================================================================== > > --- sys/conf/files (revision 313683) > > +++ sys/conf/files (working copy) > > @@ -2419,7 +2419,7 @@ > > dev/pci/pci_user.c optional pci > > dev/pci/pcib_if.m standard > > dev/pci/pcib_support.c standard > > -dev/pci/vga_pci.c optional pci > > +#dev/pci/vga_pci.c optional pci > > dev/pcn/if_pcn.c optional pcn pci > > dev/pdq/if_fea.c optional fea eisa > > dev/pdq/if_fpa.c optional fpa pci > > > > I'm playing around with small x86 builds and wanted to come up with a > > knob that disables the vga_pci driver. Obviously I still want pci(4) to > > be enabled, but I definitely do not need the vga interfaces for > > anything. Any suggestions? > > You could make it dependent on vt or sc as well as pci, no? This is a fairly small driver: 6139 340 8 6487 0x1957 /usr/obj/usr/src/sys/GENERIC /vga_pci.o (From an 11.0-stable build) device ppc and friends is a lot more for example: text data bss dec hex filename 6238 0 0 6238 0x185e /usr/obj/usr/src/sys/GENERIC/ppb_1284.o 1675 28 0 1703 0x6a7 /usr/obj/usr/src/sys/GENERIC/ppb_base.o 2042 0 0 2042 0x7fa /usr/obj/usr/src/sys/GENERIC/ppb_msq.o 6025 296 8 6329 0x18b9 /usr/obj/usr/src/sys/GENERIC/ppbconf.o 0 168 0 168 0xa8 /usr/obj/usr/src/sys/GENERIC/ppbus_if.o 9099 36 0 9135 0x23af /usr/obj/usr/src/sys/GENERIC/ppc.o 495 256 0 751 0x2ef /usr/obj/usr/src/sys/GENERIC/ppc_acpi.o 1671 256 0 1927 0x787 /usr/obj/usr/src/sys/GENERIC/ppc_isa.o 1124 208 0 1332 0x534 /usr/obj/usr/src/sys/GENERIC/ppc_pci.o 451 208 0 659 0x293 /usr/obj/usr/src/sys/GENERIC/ppc_puc.o 2751 428 8 3187 0xc73 /usr/obj/usr/src/sys/GENERIC/ppi.o It is needed for drm. -- John Baldwin