linux-toradex.git/arch/powerpc/platforms/pseries/firmware.c, branch v3.9.2

powerpc/pseries: Cleanup best_energy_hcall detection

2013-01-10T04:08:37+00:00

Currently we search for the best_energy hcall using a custom function.  Move
this to using the firmware_feature_table.

Signed-off-by: Michael Neuling 
cc: Vaidyanathan Srinivasan 
cc: Linux PPC dev 
Signed-off-by: Benjamin Herrenschmidt

powerpc/pseries: Allow firmware features to match partial strings

2013-01-10T03:43:46+00:00

This allows firmware_features_table names to add a '*' at the end so that only
partial strings are matched.

When a '*' is added, only upto the '*' is matched when setting firmware feature
bits.

This is useful for the matching best energy feature.

Signed-off-by: Michael Neuling 
cc: Vaidyanathan Srinivasan 
cc: Linux PPC dev 
Reviewed-by: Stephen Rothwell 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add set_mode hcall

2012-11-15T04:08:06+00:00

This new hcall in POWER8 is used to set various resource mode registers.
eg. it can set address translation mode on interrupt (note: partition wide
scope)

Signed-off-by: Ian Munsie 
Signed-off-by: Michael Neuling 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add VPHN firmware feature

2010-11-29T04:48:22+00:00

This simple patch adds the firmware feature for VPHN to the firmware
features bitmask.

Signed-off-by: Jesse Larrew 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix hypervisor TLB batching

2009-10-14T05:58:37+00:00

Profiling of a page fault scalability microbenchmark shows flush_hash_range
is not calling the batch hpte invalidate hcall (H_BULK_REMOVE).

It turns out we have a duplicate firmware feature for hcall-bulk and the
current setup code stops after finding the first match. This meant we never
batch and always do individual invalidates.

The patch below removes the duplicate and shifts FW_FEATURE_CMO to close
the gap. With the patch applied the single threaded page fault rate improves
from 217169 to 238755 per second on a POWER5 test box, a 10% improvement.

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt

[POWERPC] pseries/firmware.c should include pseries/pseries.h

2008-05-14T12:32:00+00:00

The declaration for fw_feature_init() is in pseries.h and
implemented in firmware.c, so the latter should include the
former.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Add CONFIG_PPC_PSERIES_DEBUG to enable debugging for platforms/pseries

2008-04-24T11:08:12+00:00

Add a DEBUG config setting which turns on all (most) of the debugging
under platforms/pseries.

To have this take effect we need to remove all the #undef DEBUG's, in
various files. We leave the #undef DEBUG in platforms/pseries/lpar.c,
as this enables debugging printks from the low-level hash table routines,
and tends to make your system unusable. If you want those enabled you
still have to turn them on by hand.

Also some of the RAS code has a DEBUG block which causes a functional
change, so I've keyed this off a different (non-existant) debug #define.

This is only enabled if you have PPC_EARLY_DEBUG enabled also.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Convert from DBG() to pr_debug() in platforms/pseries/

2008-04-24T11:08:12+00:00

In pseries/lpar.c, fix some printf specifier mismatches, and add
a newline to one printk.

In pseries/rtasd.c add "rtasd" to some messages to make it clear
where they're coming from.

In pseries/scanlog.c remove the hand-rolled runtime debugging support
in there. This file has been largely unchanged for eons, if we need to
debug it in future we can recompile.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Include udbg.h when using udbg_printf

2007-11-08T03:15:31+00:00

This fixes the error
	error: implicit declaration of function "udbg_printf"

We have a few spots where we reference udbg_printf() without #including
udbg.h.  These are within #ifdef DEBUG blocks, so unnoticed until we do
a #define DEBUG or #define DEBUG_LOW nearby.

Signed-off-by: Will Schmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Fix future firmware feature fixups function failure

2007-07-22T11:30:58+00:00

Move firmware feature initialisation from pSeries_init_early to the
earlier pSeries_probe_hypertas so they are initialised before firmware
feature fixups are applied.

Currently firmware feature sections are only used for iSeries which
initialises the these features much earlier.  This is a bug in waiting
on pSeries.

Also adds some whitespace fixups.

Signed-off-by: Michael Neuling 
Acked-by: Arnd Bergmann 
Signed-off-by: Paul Mackerras