Kim Phillips aa42c69c67 [POWERPC] Add support for FP emulation for the e300c2 core ...

The e300c2 has no FPU.  Its MSR[FP] is grounded to zero.  If an attempt
is made to execute a floating point instruction (including floating-point
load, store, or move instructions), the e300c2 takes a floating-point
unavailable interrupt.

This patch adds support for FP emulation on the e300c2 by declaring a
new CPU_FTR_FP_TAKES_FPUNAVAIL, where FP unavail interrupts are
intercepted and redirected to the ProgramCheck exception path for
correct emulation handling.

(If we run out of CPU_FTR bits we could look to reclaim this bit by adding
support to test the cpu_user_features for PPC_FEATURE_HAS_FPU instead)

It adds a nop to the exception path for 32-bit processors with a FPU.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

2006-12-08 02:43:30 -06:00

..

vdso32

[POWERPC] Support feature fixups in vdso's

2006-10-25 11:54:07 +10:00

vdso64

[POWERPC] Cell timebase bug workaround

2006-10-25 11:54:18 +10:00

align.c

[PATCH] powerpc: Implement support for setting little-endian mode via prctl

2006-06-09 21:24:15 +10:00

asm-offsets.c

[POWERPC] Lazy interrupt disabling for 64-bit machines

2006-10-16 16:31:36 +10:00

audit.c

[PATCH] audit: AUDIT_PERM support

2006-09-11 13:32:30 -04:00

binfmt_elf32.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

btext.c

[POWERPC] Fix various offb issues

2006-11-01 14:52:48 +11:00

compat_audit.c

[PATCH] audit: AUDIT_PERM support

2006-09-11 13:32:30 -04:00

cpu_setup_6xx.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

cpu_setup_ppc970.S

[POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP

2006-10-16 16:32:25 +10:00

cputable.c

[POWERPC] Add support for FP emulation for the e300c2 core

2006-12-08 02:43:30 -06:00

crash_dump.c

[POWERPC] Make doc comments extractable

2006-08-08 17:07:04 +10:00

crash.c

[PATCH] Kexec / Kdump: Unify elf note code

2006-12-07 08:39:46 -08:00

dma_64.c

[POWERPC] Make direct DMA use node local allocations

2006-12-04 20:38:59 +11:00

entry_32.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

entry_64.S

[POWERPC] iSeries: Eliminate "exceeds stub group size" warnings

2006-12-04 20:41:31 +11:00

firmware.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

fpu.S

[POWERPC] Restore copyright notice in arch/powerpc/kernel/fpu.S

2006-08-30 14:45:35 +10:00

head_4xx.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

head_8xx.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

head_32.S

[POWERPC] Add support for FP emulation for the e300c2 core

2006-12-08 02:43:30 -06:00

head_44x.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

head_64.S

[POWERPC] iSeries: Eliminate "exceeds stub group size" warnings

2006-12-04 20:41:31 +11:00

head_booke.h

[PATCH] powerpc: Fix Kernel FP unavail exception for BookE

2006-02-10 16:51:50 +11:00

head_fsl_booke.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

ibmebus.c

[POWERPC] Replace kmalloc+memset with kzalloc

2006-12-04 20:42:09 +11:00

idle_6xx.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

idle_power4.S

[POWERPC] Lazy interrupt disabling for 64-bit machines

2006-10-16 16:31:36 +10:00

idle.c

[POWERPC] cell: use ppc_md->power_save instead of cbe_idle_loop

2006-10-25 14:20:22 +10:00

init_task.c

[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c

2006-10-02 07:57:20 -07:00

io.c

[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h

2006-12-04 20:39:05 +11:00

iomap.c

[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h

2006-12-04 20:39:05 +11:00

iommu.c

[POWERPC] Refactor 64 bits DMA operations

2006-12-04 20:38:40 +11:00

irq.c

[POWERPC] Make soft_enabled irqs preempt safe

2006-12-04 20:39:20 +11:00

kprobes.c

[PATCH] kprobes: enable booster on the preemptible kernel

2006-12-07 08:39:38 -08:00

l2cr_6xx.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

legacy_serial.c

Merge branch 'merge'

2006-08-25 14:56:07 +10:00

lparcfg.c

[POWERPC] clean up pseries hcall interfaces

2006-08-01 16:19:15 +10:00

lparmap.c

[PATCH] powerpc: Fix iSeries bug in VMALLOCBASE/VMALLOC_START consolidation

2006-01-09 15:06:06 +11:00

machine_kexec_32.c

Storage class should be first

2006-06-26 18:57:34 +02:00

machine_kexec_64.c

Merge branch 'merge'

2006-08-25 14:56:07 +10:00

machine_kexec.c

[POWERPC] Move some kexec logic into machine_kexec.c

2006-08-17 16:41:10 +10:00

Makefile

[POWERPC] iSeries: don't build head_64.o unnecessarily

2006-12-04 20:42:03 +11:00

misc_32.S

[POWERPC] Consolidate feature fixup code

2006-10-25 11:42:10 +10:00

misc_64.S

[POWERPC] Consolidate feature fixup code

2006-10-25 11:42:10 +10:00

misc.S

[POWERPC] convert string i/o operations to C

2006-09-20 14:06:18 +10:00

module_32.c

[POWERPC] Support feature fixups in modules

2006-10-25 11:54:13 +10:00

module_64.c

[POWERPC] Support feature fixups in modules

2006-10-25 11:54:13 +10:00

nvram_64.c

[PATCH] nvram_print_partitions cosmetic fixup

2006-04-29 18:08:05 +10:00

of_device.c

[POWERPC] Add missing EXPORTS for mpc52xx support

2006-12-05 11:34:37 +11:00

of_platform.c

[POWERPC] powerpc: Workaround for of_platform without "reg" nor "dcr-reg"

2006-12-04 20:40:17 +11:00

paca.c

[POWERPC] Implement SLB shadow buffer

2006-08-08 17:08:56 +10:00

pci_32.c

[POWERPC] Fix debug printks for 32-bit resources in the PCI code

2006-12-04 20:42:11 +11:00

pci_64.c

[POWERPC] Replace kmalloc+memset with kzalloc

2006-12-04 20:42:09 +11:00

pci_dn.c

[POWERPC] Constify & voidify get_property()

2006-07-31 15:55:04 +10:00

pmc.c

[POWERPC] Fix oprofile support for e500 in arch/powerpc

2006-11-01 14:52:48 +11:00

ppc32.h

powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel

2005-11-03 16:03:28 +11:00

ppc_ksyms.c

[POWERPC] Lazy interrupt disabling for 64-bit machines

2006-10-16 16:31:36 +10:00

proc_ppc64.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

process.c

[POWERPC] Better check in show_instructions

2006-10-16 15:53:30 +10:00

prom_init.c

[POWERPC] Tell firmware we can handle POWER6 compatible mode

2006-12-04 20:41:53 +11:00

prom_parse.c

[POWERPC] Fix OF pci flags parsing

2006-12-04 20:41:49 +11:00

prom.c

[POWERPC] Distinguish POWER6 partition modes and tell userspace

2006-12-04 20:40:16 +11:00

ptrace32.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

ptrace-common.h

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

ptrace.c

[POWERPC] Fix PPC32 SECCOMP, unexport do_syscall_trace_{enter,leave}

2006-09-26 15:24:34 +10:00

rtas_flash.c

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

rtas_pci.c

[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h

2006-12-04 20:39:05 +11:00

rtas-proc.c

[POWERPC] Constify & voidify get_property()

2006-07-31 15:55:04 +10:00

rtas-rtc.c

[PATCH] powerpc: reorg RTAS delay code

2006-06-09 21:21:06 +10:00

rtas.c

[POWERPC] Wrap cpu_die() with CONFIG_HOTPLUG_CPU

2006-12-04 20:39:29 +11:00

semaphore.c

powerpc: Merge enough to start building in arch/powerpc.

2005-09-26 16:04:21 +10:00

setup_32.c

[POWERPC] Distinguish POWER6 partition modes and tell userspace

2006-12-04 20:40:16 +11:00

setup_64.c

[POWERPC] Distinguish POWER6 partition modes and tell userspace

2006-12-04 20:40:16 +11:00

setup-common.c

[POWERPC] Fix xmon=off and cleanup xmon initialisation

2006-10-04 14:52:22 +10:00

setup.h

[PATCH] powerpc: Make early xmon logic immune to location of early parsing

2006-05-19 15:02:12 +10:00

signal_32.c

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07 08:39:27 -08:00

signal_64.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

smp-tbsync.c

[POWERPC] Replace kmalloc+memset with kzalloc

2006-12-04 20:42:09 +11:00

smp.c

[POWERPC] cell: add cpufreq driver for Cell BE processor

2006-10-25 14:20:22 +10:00

swsusp_32.S

[PATCH] Change the name of pagedir_nosave

2006-09-26 08:49:01 -07:00

sys_ppc32.c

[POWERPC] fix missing #include in sys_ppc32.c

2006-12-04 20:41:19 +11:00

syscalls.c

[PATCH] namespaces: utsname: switch to using uts namespaces

2006-10-02 07:57:21 -07:00

sysfs.c

[PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu

2006-12-07 02:14:10 +01:00

systbl.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

tau_6xx.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

time.c

[POWERPC] iSeries: fix time.c for combined build

2006-12-04 20:39:15 +11:00

traps.c

[POWERPC] Add support for FP emulation for the e300c2 core

2006-12-08 02:43:30 -06:00

udbg_16550.c

[POWERPC] Fix default clock for udbg_16550

2006-07-26 01:27:13 +10:00

udbg.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

vdso.c

[PATCH] slab: remove SLAB_KERNEL

2006-12-07 08:39:24 -08:00

vecemu.c

[PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc

2005-09-21 19:21:07 +10:00

vector.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

vio.c

[POWERPC] Refactor 64 bits DMA operations

2006-12-04 20:38:40 +11:00

vmlinux.lds.S

[PATCH] relocatable kernel: Kallsyms generate relocatable symbols

2006-12-07 02:14:04 +01:00