linux.git/arch/openrisc/kernel/head.S, branch v3.18.22

openrisc: add missing header inclusion

2013-02-26T06:44:08+00:00

Prevents build issue with updated toolchain

Reported-by: Jack Thomasson 
Tested-by: Christian Svensson 
Signed-off-by: Stefan Kristiansson 
Signed-off-by: Jonas Bonn

openrisc: fix up vmalloc page table loading

2013-02-14T15:39:26+00:00

vmalloc'ed pages are faulted into a process' page tables on demand.  In
order to facilitate this, do_page_fault needs to know whether it was
called via a page fault exception or a TLB-miss exception.

This patch adds a wrapper around the _x_page_fault_handler entry points
that the TLB-miss exceptions can call into in order to have the relevant
parameter set to satisfy do_page_fault.

This fixes a bug and is "good enough" for now.  That said, this whole
handling of vmalloc needs to be audited for correctness at some point.

Signed-off-by: Jonas Bonn

openrisc: avoid using function parameter regs in reset vector

2013-02-10T17:55:46+00:00

The kernel might be invoked through the reset vector, so to
preserve parameters passed to it, temp regs that are not
in the function parameter range needs to be used.

Signed-off-by: Stefan Kristiansson 
Signed-off-by: Jonas Bonn

openrisc: enable passing of flattened device tree pointer

2012-02-17T08:55:22+00:00

This patch enables passing a fdt pointer to the kernel.

This makes for the kernel parameter API:

void kernel(unsigned int fdt);

which, in accordance with the OpenRISC ABI results in:
r3 = pointer to fdt

Signed-off-by: Stefan Kristiansson 
Signed-off-by: Jonas Bonn

OpenRISC: Boot code

2011-07-22T16:46:27+00:00

Architecture code and early setup routines for booting Linux.

Signed-off-by: Jonas Bonn 
Reviewed-by: Arnd Bergmann