linux.git/arch/powerpc/kernel/exceptions-64e.S, branch v4.11

powerpc/64e: Don't branch to dot symbols

2016-11-28T11:32:30+00:00

This converts one that was missed by b1576fec7f4d ("powerpc: No need
to use dot symbols when branching to a function").

Signed-off-by: Nicholas Piggin 
Signed-off-by: Michael Ellerman

powerpc32: provide VIRT_CPU_ACCOUNTING

2016-07-09T06:43:50+00:00

This patch provides VIRT_CPU_ACCOUTING to PPC32 architecture.
PPC32 doesn't have the PACA structure, so we use the task_info
structure to store the accounting data.

In order to reuse on PPC32 the PPC64 functions, all u64 data has
been replaced by 'unsigned long' so that it is u32 on PPC32 and
u64 on PPC64

Signed-off-by: Christophe Leroy 
Signed-off-by: Scott Wood

powerpc: Various typo fixes

2016-06-14T03:58:26+00:00

Signed-off-by: Andrea Gelmini 
Signed-off-by: Michael Ellerman

powerpc/book3e: support CONFIG_RELOCATABLE

2015-10-27T23:13:27+00:00

book3e is different with book3s since 3s includes the exception
vectors code in head_64.S as it relies on absolute addressing
which is only possible within this compilation unit. So we have
to get that label address with got.

And when boot a relocated kernel, we should reset ipvr properly again
after .relocate.

Signed-off-by: Tiejun Chen 
[scottwood: cleanup and ifdef removal]
Signed-off-by: Scott Wood

powerpc/book3e-64: rename interrupt_end_book3e with __end_interrupts

2015-10-27T23:13:26+00:00

Rename 'interrupt_end_book3e' to '__end_interrupts' so that the symbol
can be used by both book3s and book3e.

Signed-off-by: Tiejun Chen 
[scottwood: edit changelog]
Signed-off-by: Scott Wood

powerpc/fsl: Force coherent memory on e500mc derivatives

2015-08-08T04:00:01+00:00

In CoreNet systems it is not allowed to mix M and non-M mappings to the
same memory, and coherent DMA accesses are considered to be M mappings
for this purpose.  Ignoring this has been observed to cause hard
lockups in non-SMP kernels on e6500.

Furthermore, e6500 implements the LRAT (logical to real address table)
which allows KVM guests to control the WIMGE bits.  This means that
KVM cannot force the M bit on the way it usually does, so the guest had
better set it itself.

Signed-off-by: Scott Wood

powerpc/booke: Revert SPE/AltiVec common defines for interrupt numbers

2014-09-22T08:11:31+00:00

Book3E specification defines shared interrupt numbers for SPE and AltiVec
units. Still SPE is present in e200/e500v2 cores while AltiVec is present in
e6500 core. So we can currently decide at compile-time which unit to support
exclusively. As Alexander Graf suggested, this will improve code readability
especially in KVM.

Use distinct defines to identify SPE/AltiVec interrupt numbers, reverting
c58ce397 and 6b310fc5 patches that added common defines.

Signed-off-by: Mihai Caraman 
Acked-by: Scott Wood 
Signed-off-by: Alexander Graf

powerpc: Remove platforms/wsp and associated pieces

2014-06-11T06:35:38+00:00

__attribute__ ((unused))

WSP is the last user of CONFIG_PPC_A2, so we remove that as well.

Although CONFIG_PPC_ICSWX still exists, it's no longer selectable for
any Book3E platform, so we can remove the code in mmu-book3e.h that
depended on it.

Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Remove dot symbol usage in exception macros

2014-04-23T00:05:19+00:00

STD_EXCEPTION_COMMON, STD_EXCEPTION_COMMON_ASYNC and
MASKABLE_EXCEPTION branch to the handler, so we can remove
the explicit dot symbol and binutils will do the right thing.

Signed-off-by: Anton Blanchard

powerpc: Remove some unnecessary uses of _GLOBAL() and _STATIC()

2014-04-23T00:05:18+00:00

There is no need to create a function descriptor for functions
called locally out of assembly.

Signed-off-by: Anton Blanchard