linux-toradex.git/arch/sparc/kernel/pcr.c, branch v6.7

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59+00:00

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva

treewide: Add SPDX license identifier for missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

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