linux-toradex.git/arch/sparc/include/asm/trap_block.h, branch v4.2.7

sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE

2015-06-01T05:15:01+00:00

sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE

Bit 9 of TTE is CV (Cacheable in V-cache) on sparc v9 processor while
the same bit 9 is MCDE (Memory Corruption Detection Enable) on M7
processor. This creates a conflicting usage of the same bit. Kernel
sets TTE.cv bit on all pages for sun4v architecture which works well
for sparc v9 but enables memory corruption detection on M7 processor
which is not the intent. This patch adds code to determine if kernel
is running on M7 processor and takes steps to not enable memory
corruption detection in TTE erroneously.

Signed-off-by: Khalid Aziz 
Signed-off-by: David S. Miller

sparc: drop use of extern for prototypes in arch/sparc/include/asm

2014-05-19T02:01:29+00:00

Drop extern for all prototypes and adjust alignment of parameters
as required after the removal.
In a few rare cases adjust linelength to conform to maximum 80 chars,
and likewise in a few rare cases adjust alignment of parameters
to static functions.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc64: Store per-cpu offset in trap_block[]

2009-06-16T11:56:11+00:00

Surprisingly this actually makes LOAD_PER_CPU_BASE() a little
more efficient.

Signed-off-by: David S. Miller

sparc64: Move trap_block[] definitions into a new header file.

2009-06-16T11:56:08+00:00

Later we're going to want to get at these definitions from
asm/percpu.h and that's not possible via cpudata.h because
of the set of dependencies the non-trap_block[] stuff has.

Signed-off-by: David S. Miller