linux-stable.git/arch/sparc/kernel/entry.S, branch linux-3.6.y

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-28T06:52:49+00:00

All users of MMUREGS ASI in kernel/ now uses run-time patching.

Signed-off-by: Sam Ravnborg 
Cc: Daniel Hellstrom 
Cc: Konrad Eisele

sparc32,leon: always include leon_smp + leon_mm in build

2012-05-28T06:52:47+00:00

Fix-up leon specific assembler to use ASI_LEON_MMUREGS

Signed-off-by: Sam Ravnborg 
Cc: Daniel Hellstrom 
Cc: Konrad Eisele

sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h

2012-05-20T04:22:11+00:00

GET_PROCESSOR4D_ID is completely unused, so delete it.

Move GET_PROCESSOR4M_ID to the sun4m specific trap code
which uses it.

We now no longer need to include asm/asi.h

Signed-off-by: David S. Miller

sparc32: Kill off software 32-bit multiply/divide routines.

2012-05-15T18:23:47+00:00

For the explicit calls to .udiv/.umul in assembler, I made a
mechanical (read as: safe) transformation.  I didn't attempt
to make any simplifications.

In particular, __ndelay and __udelay can be simplified significantly.
Some of the %y reads are unnecessary and these routines have no need
any longer for allocating a register window, they can be leaf
functions.

Signed-off-by: David S. Miller

sparc32: Implement hard_smp_processor_id() via instruction patching.

2012-05-14T20:31:38+00:00

This is the last non-trivial user of btfixup.

Like sparc64, use a special patch section to resolve the various
implementations of how to read the current CPU's ID when we don't
have current_thread_info()->cpu necessarily available.

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

sparc32: Remove sparc_cpu_model read from floppy interrupt handler.

2012-05-12T07:13:32+00:00

Since we no longer test the cpu model value, no need to load
it into a register any more.

It just gets overwritten in the next instruction anyways. :-)

Signed-off-by: David S. Miller

sparc32: Remove sun4c tlb/vac insn patching from entry.S

2012-05-12T04:35:36+00:00

No longer used.

Signed-off-by: David S. Miller

sparc32: Restore SMP build and rectify sun4m NMI when non-SMP.

2012-05-12T04:23:05+00:00

The non-SMP sun4m NMI handler was still accessing SUN4C registers.

Fix that and share the sun4m NMI trap code between SMP and non-SMP
cases.

Signed-off-by: David S. Miller

sparc32: Remove sun4c floppy assembler.

2012-05-12T03:59:57+00:00

There were two blocks of code for the two ways to twiddle
the terminal count pin in the AUXIO register, one for
sun4c and one for sun4m.  Kill the former.

Signed-off-by: David S. Miller

sparc32: delete pgtsun4c.h

2012-05-12T02:27:49+00:00

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