kernel/linux.git/drivers/edac, branch linux-2.6.22.y

[S390] Kconfig: menus with depends on HAS_IOMEM.

2007-05-10T13:46:07+00:00

Add "depends on HAS_IOMEM" to a number of menus to make them disappear for s390 which does not have I/O memory. Signed-off-by: Martin Schwidefsky

Fix 82875 PCI setup

2007-05-08T18:15:07+00:00

The 82875 EDAC driver enables an otherwise-hidden PCI device, but doesn't register it as a PCI device properly. Therefore, the device list in /proc/bus/pci/devices is different than the tree in /sys/bus/pci. This usually manifests as the X server failing to start, since it expects the two lists to be consistent. Signed-off-by: Adam Jackson Cc: Henrique de Moraes Holschuh Cc: Greg KH Cc: Alan Cox Cc: Doug Thompson Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] EDAC: Add Fully-Buffered DIMM APIs to core

2007-02-12T17:48:32+00:00

Eric Wollesen ported the Bluesmoke Memory Controller driver for the Intel 5000X/V/P (Blackford/Greencreek) chipset to the in kernel EDAC model. This patch incorporates those required changes to the edac_mc.c and edac_mc.h core files by added new Fully Buffered DIMM interface to the EDAC Core module. Signed-off-by: eric wollesen Signed-off-by: doug thompson Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] EDAC: Add memory scrubbing controls API to core

2007-02-12T17:48:32+00:00

This is an attempt of providing an interface for memory scrubbing control in EDAC. This patch modifies the EDAC Core to provide the Interface for memory controller modules to implment. The following things are still outstanding: - K8 is the first implemenation, The patch provide a method of configuring the K8 hardware memory scrubber via the 'mcX' sysfs directory. There should be some fallback to a generic scrubber implemented in software if the hardware does not support scrubbing. Or .. the scrubbing sysfs entry should not be visible at all. - Only works with SDRAM, not cache, The K8 can scrub cache and l2cache also - but I think this is not so useful as the cache is busy all the time (one hopes). One would also expect that cache scrubbing requires hardware support. - Error Handling, I would like that errors are returned to the user in "terms of file system". - Presentation, I chose Bandwidth in Bytes/Second as a representation of the scrubbing rate for the following reasons: I like that the sysfs entries are sort-of textual, related to something that makes sense instead of magical values that must be looked up. "My People" wants "% main memory scrubbed per hour" others prefer "% memory bandwidth used" as representation, "bandwith used" makes it easy to calculate both versions in one-liner scripts. If one later wants to scrub cache, the scaling becomes wierd for K8 changing from "blocks of 64 byte memory" to "blocks of 64 cache lines" to "blocks of 64 bit". Using "bandwidth used" makes sense in all three cases, (I.M.O. anyway ;-). - Discovery, There is no way to discover the possible settings and what they do without reading the code and the documentation. *I* do not know how to make that work in a practical way. - Bugs(??), other tools can set invalid values in the memory scrub control register, those will read back as '-1', requiring the user to reset the scrub rate. This is how *I* think it should be. - Afflicting other areas of code, I made changes to edac_mc.c and edac_mc.h which will show up globally - this is not nice, it would be better that the memory scrubbing fuctionality and interface could be entirely contained within the memory controller it applies to. Frithiof Jensen edac_mc.c and its .h file is a CORE helper module for EDAC driver modules. This provides the abstraction for device specific drivers. It is fine to modify this CORE to provide help for new features of the the drivers doug thompson Signed-off-by: Frithiof Jensen Signed-off-by: doug thompson Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] EDAC: Fix in e752x mc driver

2007-02-12T17:48:32+00:00

This fix/change returns the offset into the page for the ce/ue error, instead of just 0. The e752x dram controller reads 34:6 of the linear address with the error. Signed-off-by: Mike Chan Signed-off-by: doug thompson Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] EDAC: e752x byte access fix

2007-02-12T17:48:32+00:00

The reading of the DRA registers should be a byte at a time (one register at a time) instead of 4 bytes at a time (four registers). Reading a dword at a time retrieves erroneous information from all but the first register. A change was made to read in each register in a loop prior to using the data in those registers. Signed-off-by: Brian Pomerantz Signed-off-by: Dave Jiang Signed-off-by: Doug Thompson Cc: Alan Cox Cc: Andi Kleen Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] EDAC: e752x bit mask fix

2007-02-12T17:48:32+00:00

The fatal vs. non-fatal mask for the sysbus FERR status is incorrect according to the E7520 datasheet. This patch corrects the mask to correctly handle fatal and non-fatal errors. Signed-off-by: Brian Pomerantz Signed-off-by: Dave Jiang Signed-off-by: Doug Thompson Cc: Alan Cox Cc: Andi Kleen Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07T16:39:27+00:00

Move process freezing functions from include/linux/sched.h to freezer.h, so that modifications to the freezer or the kernel configuration don't require recompiling just about everything. [akpm@osdl.org: fix ueagle driver] Signed-off-by: Nigel Cunningham Cc: "Rafael J. Wysocki" Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] edac_mc: fix error handling

2006-11-03T20:27:57+00:00

Call sysdev_class_unregister() on failure in edac_sysfs_memctrl_setup() and decrease identation level for clear logic. Acked-by: Doug Thompson Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] drivers/edac/edac_mc.h must #include

2006-08-06T15:57:46+00:00

With CONFIG_PCI=n: CC drivers/edac/edac_mc.o drivers/edac/edac_mc.c: In function âadd_mc_to_global_listâ: drivers/edac/edac_mc.c:1362: error: implicit declaration of function âto_platform_deviceâ drivers/edac/edac_mc.c:1362: error: invalid type argument of â->â drivers/edac/edac_mc.c: In function âedac_mc_add_mcâ: drivers/edac/edac_mc.c:1467: error: invalid type argument of â->â drivers/edac/edac_mc.c: In function âedac_mc_del_mcâ: drivers/edac/edac_mc.c:1504: error: invalid type argument of â->â Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds