kernel/arch/microblaze/include/asm/exceptions.h, branch linux-5.3.y

microblaze: Fix sparse warning - fault.c

2011-03-09T07:09:59Z

Warning log: CHECK arch/microblaze/mm/fault.c arch/microblaze/mm/fault.c:51:6: warning: incorrect type in initializer (different address spaces) arch/microblaze/mm/fault.c:51:6: expected unknown type 2const [noderef] *__gu_addr arch/microblaze/mm/fault.c:51:6: got unsigned int * arch/microblaze/mm/fault.c:68:6: warning: symbol 'bad_page_fault' was not declared. Should it be static? Signed-off-by: Michal Simek

microblaze: Fix sparse warning - sw_exceptions

2011-03-09T07:09:58Z

Function sw_exception is linked with asm code. Warning log: CHECK arch/microblaze/kernel/exceptions.c arch/microblaze/kernel/exceptions.c:53:6: warning: symbol 'sw_exception' was not declared. Should it be static? Signed-off-by: Michal Simek

microblaze: Add KGDB support

2010-08-04T08:45:17Z

Kgdb uses brki r16, 0x18 instruction to call low level _debug_exception function which save current state to pt_regs and call microblaze_kgdb_break function. _debug_exception should be called only from the kernel space. User space calling is not supported because user application debugging uses different handling. pt_regs_to_gdb_regs loads additional special registers which can't be changed * Enable KGDB in Kconfig * Remove ancient not-tested KGDB support * Remove ancient _debug_exception code from entry.S Only MMU KGDB support is supported. Signed-off-by: Michal Simek CC: Jason Wessel CC: John Williams CC: Edgar E. Iglesias CC: linux-kernel@vger.kernel.org Acked-by: Jason Wessel

microblaze: Add stack unwinder

2010-08-04T08:22:35Z

Implement intelligent backtracing by searching for stack frame creation, and emitting only return addresses. Use print_hex_dump() to display the entire binary kernel stack. Limitation: MMU kernels are not currently able to trace beyond a system trap (interrupt, syscall, etc.). It is the intent of this patch to provide infrastructure that can be extended to add this capability later. Changes from V1: * Removed checks in find_frame_creation() that prevented location of the frame creation instruction in heavily optimized code * Various formatting/commenting/file location tweaks per review comments * Dropped Kconfig option to enable STACKTRACE as something logically separate Signed-off-by: Steven J. Magnani

microblaze: Remove ancient code

2010-05-06T09:21:58Z

I found several function which we don't use that's why I am removing them. Signed-off-by: Michal Simek

microblaze_mmu_v2: Traps MMU update

2009-05-26T14:45:21Z

Signed-off-by: Michal Simek

microblaze: Add missing declaration for die and _exception func

2009-04-23T14:09:17Z

This change remove sparse errors. Signed-off-by: Michal Simek

microblaze_v8: exception handling

2009-03-27T13:25:13Z

Reviewed-by: Ingo Molnar Acked-by: Stephen Neuendorffer Acked-by: John Linn Acked-by: John Williams Signed-off-by: Michal Simek