kernel.git/arch/powerpc/include/asm/ppc_asm.h, branch linux-3.8.y

powerpc: Enforce usage of R0-R31 where possible

2012-07-10T09:18:30Z

Enforce the use of R0-R31 in macros where possible now we have all the fixes in. R0-R31 macros are removed here so that can't be used anymore. They should not be defined anywhere. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Change mtcrf to use real register names

2012-07-10T09:18:11Z

mtocrf define is just a wrapper around the real instructions so we can just use real register names here (ie. lower case). Also remove braces in macro so this is possible. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Move and fix MTMSR_EERI definition

2012-07-10T09:18:08Z

Move this duplicated definition to ppc_asm.h and remove the braces which prevent the use of %rN register names Signed-off-by: Benjamin Herrenschmidt

powerpc: Merge VCPU_GPR

2012-07-10T09:18:06Z

Merge the defines of VCPU_GPR from different places. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Merge STK_REG/PARAM/FRAMESIZE

2012-07-10T09:18:03Z

Merge the defines of STACKFRAMESIZE, STK_REG, STK_PARAM from different places. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Convert to %r for all GPR usage

2012-07-10T09:17:58Z

Now all the fixes are in place, let's rock-n-roll! Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Modify macro ready for %r0 register change

2012-07-10T09:17:52Z

The assembler doesn't take %r0 register arguments in braces, so remove them. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Remove CONFIG_POWER4_ONLY

2012-04-30T05:37:26Z

Remove CONFIG_POWER4_ONLY, the option is badly named and only does two things: - It wraps the MMU segment table code. With feature fixups there is little downside to compiling this in. - It uses the newer mtocrf instruction in various assembly functions. Instead of making this a compile option just do it at runtime via a feature fixup. Signed-off-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix register clobbering when accumulating stolen time

2012-03-08T23:55:16Z

When running under a hypervisor that supports stolen time accounting, we may call C code from the macro EXCEPTION_PROLOG_COMMON in the exception entry path, which clobbers CR0. However, the FPU and vector traps rely on CR0 indicating whether we are coming from userspace or kernel to decide what to do. So we need to restore that value after the C call Signed-off-by: Benjamin Herrenschmidt

powerpc/e500: SPE register saving: take arbitrary struct offset

2011-07-12T10:16:31Z

Previously, these macros hardcoded THREAD_EVR0 as the base of the save area, relative to the base register passed. This base offset is now passed as a separate macro parameter, allowing reuse with other SPE save areas, such as used by KVM. Acked-by: Kumar Gala Signed-off-by: Scott Wood Signed-off-by: Alexander Graf