Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for 3.17.  It contains:

   - misc Cavium Octeon, BCM47xx, BCM63xx and Alchemy  updates
   - MIPS ptrace updates and cleanups
   - various fixes that will also go to -stable
   - a number of cleanups and small non-critical fixes.
   - NUMA support for the Loongson 3.
   - more support for MSA
   - support for MAAR
   - various FP enhancements and fixes"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (139 commits)
  MIPS: jz4740: remove unnecessary null test before debugfs_remove
  MIPS: Octeon: remove unnecessary null test before debugfs_remove_recursive
  MIPS: ZBOOT: implement stack protector in compressed boot phase
  MIPS: mipsreg: remove duplicate MIPS_CONF4_FTLBSETS_SHIFT
  MIPS: Bonito64: remove a duplicate define
  MIPS: Malta: initialise MAARs
  MIPS: Initialise MAARs
  MIPS: detect presence of MAARs
  MIPS: define MAAR register accessors & bits
  MIPS: mark MSA experimental
  MIPS: Don't build MSA support unless it can be used
  MIPS: consistently clear MSA flags when starting & copying threads
  MIPS: 16 byte align MSA vector context
  MIPS: disable preemption whilst initialising MSA
  MIPS: ensure MSA gets disabled during boot
  MIPS: fix read_msa_* & write_msa_* functions on non-MSA toolchains
  MIPS: fix MSA context for tasks which don't use FP first
  MIPS: init upper 64b of vector registers when MSA is first used
  MIPS: save/disable MSA in lose_fpu
  MIPS: preserve scalar FP CSR when switching vector context
  ...

1 files changed, 31 insertions, 0 deletions

diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 935543f14538..cd9a98bc8f60 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -10,6 +10,7 @@
 
 #include <asm/hazards.h>
 #include <asm/asm-offsets.h>
+#include <asm/msa.h>
 
 #ifdef CONFIG_32BIT
 #include <asm/asmmacro-32.h>
@@ -378,9 +379,19 @@
 	st_d	29, THREAD_FPR29, \thread
 	st_d	30, THREAD_FPR30, \thread
 	st_d	31, THREAD_FPR31, \thread
+	.set	push
+	.set	noat
+	cfcmsa	$1, MSA_CSR
+	sw	$1, THREAD_MSA_CSR(\thread)
+	.set	pop
 	.endm
 
 	.macro	msa_restore_all	thread
+	.set	push
+	.set	noat
+	lw	$1, THREAD_MSA_CSR(\thread)
+	ctcmsa	MSA_CSR, $1
+	.set	pop
 	ld_d	0, THREAD_FPR0, \thread
 	ld_d	1, THREAD_FPR1, \thread
 	ld_d	2, THREAD_FPR2, \thread
@@ -415,4 +426,24 @@
 	ld_d	31, THREAD_FPR31, \thread
 	.endm
 
+	.macro	msa_init_upper wd
+#ifdef CONFIG_64BIT
+	insert_d \wd, 1
+#else
+	insert_w \wd, 2
+	insert_w \wd, 3
+#endif
+	.if	31-\wd
+	msa_init_upper	(\wd+1)
+	.endif
+	.endm
+
+	.macro	msa_init_all_upper
+	.set	push
+	.set	noat
+	not	$1, zero
+	msa_init_upper	0
+	.set	pop
+	.endm
+
 #endif /* _ASM_ASMMACRO_H */