Date: Fri, 6 Dec 2013 18:41:16 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r259039 - head/sys/arm/at91 Message-ID: <201312061841.rB6IfHGf080004@svn.freebsd.org>
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Author: imp Date: Fri Dec 6 18:41:16 2013 New Revision: 259039 URL: http://svnweb.freebsd.org/changeset/base/259039 Log: Although not strictly required to boot a 64MB board, bump vm_max_virtual_address to be KERNVIRTADDR + 256MB. This allows some future shock protection since the KVA requirements have gone up since the unmapped changes have gone in, as well as preventing us from overlapping with the hardware devices, which we map at 0xd0000000, which we'd hit with anything more than 85MB... MFC after: 3 days Modified: head/sys/arm/at91/at91_machdep.c Modified: head/sys/arm/at91/at91_machdep.c ============================================================================== --- head/sys/arm/at91/at91_machdep.c Fri Dec 6 18:32:03 2013 (r259038) +++ head/sys/arm/at91/at91_machdep.c Fri Dec 6 18:41:16 2013 (r259039) @@ -633,7 +633,8 @@ initarm(struct arm_boot_params *abp) pmap_curmaxkvaddr = afterkern + L1_S_SIZE * (KERNEL_PT_KERN_NUM - 1); arm_dump_avail_init(memsize, sizeof(dump_avail)/sizeof(dump_avail[0])); - vm_max_kernel_address = KERNVIRTADDR + 3 * memsize; + /* Always use the 256MB of KVA we have available between the kernel and devices */ + vm_max_kernel_address = KERNVIRTADDR + (256 << 20); pmap_bootstrap(freemempos, &kernel_l1pt); msgbufp = (void*)msgbufpv.pv_va; msgbufinit(msgbufp, msgbufsize);
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