kernel.git/arch/x86_64/kernel/setup.c, branch linux-2.6.19.y

[PATCH] x86-64: Mark rdtsc as sync only for netburst, not for core2

2007-01-10T19:05:17Z

On the Core2 cpus, the rdtsc instruction is not serializing (as defined in the architecture reference since rdtsc exists) and due to the deep speculation of these cores, it's possible that you can observe time go backwards between cores due to this speculation. Since the kernel already deals with this with the SYNC_RDTSC flag, the solution is simple, only assume that the instruction is serializing on family 15... The price one pays for this is a slightly slower gettimeofday (by a dozen or two cycles), but that increase is quite small to pay for a really-going-forward tsc counter. Signed-off-by: Arjan van de Ven Signed-off-by: Andi Kleen Signed-off-by: Chris Wright

[PATCH] Use ARRAY_SIZE in setup.c

2006-09-29T23:47:55Z

Based on i386 patch from Bjorn. Signed-off-by: Andi Kleen

[PATCH] Have x86_64 use add_active_range() and free_area_init_nodes

2006-09-27T15:26:11Z

Size zones and holes in an architecture independent manner for x86_64. Signed-off-by: Mel Gorman Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2006-09-26T20:07:55Z

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...

[PATCH] Make swsusp avoid memory holes and reserved memory regions on x86_64

2006-09-26T15:48:58Z

On x86_64 machines with more than 2 GB of RAM there are large memory gaps (with no corresponding kernel virtual addresses) and reserved memory regions between areas of usable physical RAM. Moreover, if CONFIG_FLATMEM is set, they appear within the normal zone. swsusp should not try to save them, so the corresponding page structs have to be marked as 'nosave'. Signed-off-by: Rafael J. Wysocki Cc: Mel Gorman Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] i386/x86-64: New Intel feature flags

2006-09-26T08:52:42Z

Add supplemental SSE3 instructions flag, and Direct Cache Access flag. As described in "Intel Processor idenfication and the CPUID instruction AP485 Sept 2006" AK: also added for x86-64 Signed-off-by: Dave Jones Signed-off-by: Andi Kleen

[PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI

2006-09-26T08:52:41Z

This is useful on systems with broken PCI bus. Affects various scans in x86-64 and i386's early ACPI quirk scan. Cc: gregkh@suse.de Cc: len.brown@intel.com Cc: Trammell Hudson Signed-off-by: Andi Kleen

[PATCH] Don't synchronize time reading on single core AMD systems

2006-09-26T08:52:41Z

We do some additional CPU synchronization in gettimeofday et.al. to make sure the time stamps are always monotonic over multiple CPUs. But on single core systems that is not needed. So don't do it. Signed-off-by: Andi Kleen

[PATCH] Use string instructions for Core2 copy/clear

2006-09-26T08:52:41Z

It is faster than using a unrolled loop for the use cases the kernel cares about (cached, sizes typically < 4K) Signed-off-by: Andi Kleen

[PATCH] mark init_amd() as __cpuinit

2006-09-26T08:52:36Z

The init_amd() function is only called from identify_cpu() which is already marked as __cpuinit. So let's mark it as __cpuinit. Signed-off-by: Magnus Damm Signed-off-by: Andi Kleen