linux-toradex.git/arch/sparc/kernel/pcr.c, branch v4.10

sparc: perf: Add support M7 processor

2015-03-20T01:54:49+00:00

The M7 processor has a different hypervisor group id and different PCR fast
trap values. PIC read/write functions and PCR bit fields are the same as
the T4 so those are reused.

Signed-off-by: David Ahern 
Acked-by: Bob Picco 
Signed-off-by: David S. Miller

sparc64: T5 PMU

2014-09-17T01:26:40+00:00

The T5 (niagara5) has different PCR related HV fast trap values and a new
HV API Group. This patch utilizes these and shares when possible with niagara4.

We use the same sparc_pmu niagara4_pmu. Should there be new effort to
obtain the MCU perf statistics then this would have to be changed.

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco 
Signed-off-by: David S. Miller

sparc64: Add PCR ops for SPARC-T4.

2012-08-19T06:26:19+00:00

This is enough to get the NMIs working, more work is needed
for perf events.

Signed-off-by: David S. Miller

sparc64: Abstract away the %pcr values used to enable/disable NMI

2012-08-19T06:26:19+00:00

We assumed PCR_PIC_PRIV can always be used to disable it, but that
won't be true for SPARC-T4.

This allows us also to get rid of some messy defines used in only
one location.

Signed-off-by: David S. Miller

sparc64: Abstract away the NMI PIC counter computation.

2012-08-19T06:26:18+00:00

Signed-off-by: David S. Miller

sparc64: Abstract away PIC register accesses.

2012-08-19T06:26:14+00:00

And, like for the PCR, allow indexing of different PIC register
numbers.

This also removes all of the non-__KERNEL__ bits from asm/perfctr.h,
nothing kernel side should include it any more.

Signed-off-by: David S. Miller

sparc64: Add 'reg_num' argument to pcr_ops methods.

2012-08-19T06:04:08+00:00

SPARC-T4 and later have multiple PCR registers, one for each
PIC counter.

Signed-off-by: David S. Miller

Disintegrate asm/system.h for Sparc

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for Sparc.

Signed-off-by: David Howells 
cc: sparclinux@vger.kernel.org

sparc: move symbol exporters to use export.h not module.h

2011-10-31T23:30:53+00:00

Many of the core sparc kernel files are not modules, but just
including module.h for exporting symbols.  Now these files can
use the lighter footprint export.h for this role.

Signed-off-by: Paul Gortmaker

sparc: fix implicit use of spitfire.h in pcr.c and of_device_64.c

2011-10-31T23:30:51+00:00

To resolve these on 64bit allnoconfig builds:

  CC      arch/sparc/kernel/pcr.o
arch/sparc/kernel/pcr.c: In function 'register_perf_hsvc':
arch/sparc/kernel/pcr.c:102: error: 'tlb_type' undeclared (first use in this function)

  CC      arch/sparc/kernel/of_device_64.o
arch/sparc/kernel/of_device_64.c: In function 'build_device_resources':
arch/sparc/kernel/of_device_64.c:406: error: 'tlb_type' undeclared (first use in this function)

Signed-off-by: Paul Gortmaker