linux/arch/powerpc
Cyril Bur 8792468da5 powerpc: Add the ability to save FPU without giving it up
This patch adds the ability to be able to save the FPU registers to the
thread struct without giving up (disabling the facility) next time the
process returns to userspace.

This patch optimises the thread copy path (as a result of a fork() or
clone()) so that the parent thread can return to userspace with hot
registers avoiding a possibly pointless reload of FPU register state.

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-02 23:34:49 +11:00
..
boot powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
configs powerpc/powernv: Add AST graphics driver to powernv_defconfig 2016-02-24 17:14:53 +11:00
crypto powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
include powerpc: Add the ability to save FPU without giving it up 2016-03-02 23:34:49 +11:00
kernel powerpc: Add the ability to save FPU without giving it up 2016-03-02 23:34:49 +11:00
kvm powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
lib powerpc: Create disable_kernel_{fp,altivec,vsx,spe}() 2015-12-01 13:52:25 +11:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm powerpc/mm: Split hash page table sizing heuristic into a helper 2016-03-02 09:06:16 +11:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
oprofile powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
perf powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
platforms powerpc/mm: Handle removing maybe-present bolted HPTEs 2016-03-01 22:04:18 +11:00
sysdev powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
xmon powerpc/xmon: Add xmon command to dump process/task similar to ps(1) 2016-02-10 10:22:04 +11:00
Kconfig powerpc fixes for 4.5 #3 2016-02-25 21:52:58 +11:00
Kconfig.debug powerpc updates for 4.5 2016-01-15 13:18:47 -08:00
Makefile powerpc/cell: Drop CONFIG_TUNE_CELL in favour of CONFIG_CELL_CPU 2015-10-19 19:51:18 +11:00
relocs_check.sh powerpc: Convert relocs_check to a shell script using grep 2015-03-23 14:47:39 +11:00