From 80b3e557371205566a71e569fbfcce5b11f92dbe Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 15 May 2012 18:44:15 +0100 Subject: x86: Fix boot on Twinhead H12Y Despite lots of investigation into why this is needed we don't know or have an elegant cure. The only answer found on this laptop is to mark a problem region as used so that Linux doesn't put anything there. Currently all the users add reserve= command lines and anyone not knowing this needs to find the magic page that documents it. Automate it instead. Signed-off-by: Alan Cox Tested-and-bugfixed-by: Arne Fitzenreiter Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=10231 Link: http://lkml.kernel.org/r/20120515174347.5109.94551.stgit@bluebook Signed-off-by: Ingo Molnar --- arch/x86/pci/fixup.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index d0e6e40..5dd467b 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -519,3 +519,20 @@ static void sb600_disable_hpet_bar(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, 0x4385, sb600_disable_hpet_bar); + +/* + * Twinhead H12Y needs us to block out a region otherwise we map devices + * there and any access kills the box. + * + * See: https://bugzilla.kernel.org/show_bug.cgi?id=10231 + * + * Match off the LPC and svid/sdid (older kernels lose the bridge subvendor) + */ +static void __devinit twinhead_reserve_killing_zone(struct pci_dev *dev) +{ + if (dev->subsystem_vendor == 0x14FF && dev->subsystem_device == 0xA003) { + pr_info("Reserving memory on Twinhead H12Y\n"); + request_mem_region(0xFFB00000, 0x100000, "twinhead"); + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone); -- cgit v1.1 From 29d679ffd850ea37a303bb930142be14982611e4 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Tue, 8 May 2012 17:56:12 +0200 Subject: x86, printk: Add missing KERN_CONT to NMI selftest Fix this behaviour: ---------------- | NMI testsuite: -------------------- remote IPI: ok | local IPI: ok | Revealed due to a new modification to printk(). Signed-off-by: Sasha Levin Link: http://lkml.kernel.org/r/1336492573-17530-3-git-send-email-levinsasha928@gmail.com Signed-off-by: H. Peter Anvin --- arch/x86/kernel/nmi_selftest.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c index 2c39dcd..9f11dd3 100644 --- a/arch/x86/kernel/nmi_selftest.c +++ b/arch/x86/kernel/nmi_selftest.c @@ -117,15 +117,15 @@ static void __init dotest(void (*testcase_fn)(void), int expected) unexpected_testcase_failures++; if (nmi_fail == FAILURE) - printk("FAILED |"); + printk(KERN_CONT "FAILED |"); else if (nmi_fail == TIMEOUT) - printk("TIMEOUT|"); + printk(KERN_CONT "TIMEOUT|"); else - printk("ERROR |"); + printk(KERN_CONT "ERROR |"); dump_stack(); } else { testcase_successes++; - printk(" ok |"); + printk(KERN_CONT " ok |"); } testcase_total++; @@ -150,10 +150,10 @@ void __init nmi_selftest(void) print_testname("remote IPI"); dotest(remote_ipi, SUCCESS); - printk("\n"); + printk(KERN_CONT "\n"); print_testname("local IPI"); dotest(local_ipi, SUCCESS); - printk("\n"); + printk(KERN_CONT "\n"); cleanup_nmi_testsuite(); -- cgit v1.1 From b2d668da9307c4c163dd603d2bb3cadb10f9fd37 Mon Sep 17 00:00:00 2001 From: Jarkko Sakkinen Date: Mon, 21 May 2012 20:51:24 +0300 Subject: x86, relocs: Build clean fix relocs was not cleaned up when "make clean" is issued. This patch fixes the issue. Signed-off-by: Jarkko Sakkinen Link: http://lkml.kernel.org/r/1337622684-6834-1-git-send-email-jarkko.sakkinen@intel.com Signed-off-by: H. Peter Anvin Cc: v3.4 --- arch/x86/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86') diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 94e91e4..b1c611e 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -206,6 +206,7 @@ archclean: $(Q)rm -rf $(objtree)/arch/i386 $(Q)rm -rf $(objtree)/arch/x86_64 $(Q)$(MAKE) $(clean)=$(boot) + $(Q)$(MAKE) $(clean)=arch/x86/tools define archhelp echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)' -- cgit v1.1