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When injecting DRAM ECC errors over the F3xB[8,C] interface, the machine
does this by injecting the error in the next non-cached access. This
takes relatively long time on a normal system so that in order for us to
expedite it, we disable the caches around the injection.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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Invert kstrtoul return value testing and win one indentation level.
Also, shorten up macro names so that the lines can fit into 80 cols. No
functional change.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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Use a more common debugging style.
Remove __FILE__ uses, add missing newlines,
coalesce formats and align arguments.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Now that the EDAC core supports struct device, there's no sense
on having any logic at the EDAC core to simulate it. So, instead
of adding such logic there, change the logic at amd64_edac to
use it.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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F15h "multiplexes" between the configuration space of the two DRAM
controllers by toggling D18F1x10C[DctCfgSel] while F10h has a different
set of registers for DCT0, and DCT1 in extended PCI config space.
Add DCT configuration space accessors per family thus wrapping all the
different access prerequisites. Clean up code while at it, shorten
names.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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Add a macro per printk level, shorten up error messages. Add relevant
information to KERN_INFO level. No functional change.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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Rename variables representing PCI devices to their BKDG names for faster
search and shorter, clearer code.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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When injecting DRAM ECC errors (F3xBC_x8), EccVector[15:0] is a bitmask
of which bits should be error injected when written to and holds the
payload of 16-bit DRAM word when read, respectively.
Add /sysfs members to show the DRAM ECC section/word/vector.
Fail wrong injection values entered over /sysfs instead of truncating
them.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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Borislav:
- rename sysfs attrs to more conform names
- cleanup/fix comments according to BKDG text
- fix function return value patterns
- cleanup debug calls
Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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