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4 Commits

Author SHA1 Message Date
Guenter Roeck
91dfc423cc MIPS: 64-bit: Detect virtual memory size 
Linux kernel 2.6.32 and later allocate address space from the top of the
kernel virtual memory address space.

This patch implements virtual memory size detection for 64 bit MIPS CPUs
to avoid resulting crashes.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/935/
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2010-02-02 19:56:23 +01:00
Ralf Baechle
5636919b5c MIPS: Outline udelay and fix a few issues. 
Outlining fixes the issue were on certain CPUs such as the R10000 family
the delay loop would need an extra cycle if it overlaps a cacheline
boundary.

The rewrite also fixes build errors with GCC 4.4 which was changed in
way incompatible with the kernel's inline assembly.

Relying on pure C for computation of the delay value removes the need for
explicit.  The price we pay is a slight slowdown of the computation - to
be fixed on another day.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2009-06-08 16:57:51 +01:00
David Daney
6aa3524c18 MIPS: Add HARDWARE_WATCHPOINTS definitions and support code. 
This is the main support code for the patch.  Here we just add the
code, the following patches hook it up.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/include/asm/watch.h
 create mode 100644 arch/mips/kernel/watch.c
 2008-10-11 16:18:56 +01:00
Ralf Baechle
384740dc49 MIPS: Move headfiles to new location below arch/mips/include 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2008-10-11 16:18:52 +01:00