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d0d98eedee
linux/arch/x86/include/asm
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Andy Lutomirski d0d98eedee Add arch_phys_wc_{add, del} to manipulate WC MTRRs if needed 
Several drivers currently use mtrr_add through various #ifdef guards
and/or drm wrappers.  The vast majority of them want to add WC MTRRs
on x86 systems and don't actually need the MTRR if PAT (i.e.
ioremap_wc, etc) are working.

arch_phys_wc_add and arch_phys_wc_del are new functions, available
on all architectures and configurations, that add WC MTRRs on x86 if
needed (and handle errors) and do nothing at all otherwise.  They're
also easier to use than mtrr_add and mtrr_del, so the call sites can
be simplified.

As an added benefit, this will avoid wasting MTRRs and possibly
warning pointlessly on PAT-supporting systems.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-05-31 13:02:52 +10:00
..
crypto crypto: camellia - add AVX2/AES-NI/x86_64 assembler implementation of camellia cipher 2013-04-25 21:09:07 +08:00
numachip x86/PCI: Add NumaChip remote PCI support 2012-12-07 14:24:32 -07:00
uv x86, uv, uv3: Trim MMR register definitions after code changes for SGI UV3 2013-02-11 17:18:25 -08:00
visws
xen xen-pciback: notify hypervisor about devices intended to be assigned to guests 2013-03-22 10:20:55 -04:00
a.out-core.h
acpi.h ACPICA: Update compilation environment settings. 2013-01-10 12:36:17 +01:00
agp.h
alternative-asm.h
alternative.h Merge branch 'x86-smap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-10-01 13:59:17 -07:00
amd_nb.h x86, AMD, NB: Add multi-domain support 2013-01-10 16:17:58 +01:00
apb_timer.h
apic_flat_64.h
apic.h sections: fix section conflicts in arch/x86 2012-10-06 03:04:40 +09:00
apicdef.h
apm.h
arch_hweight.h
archrandom.h
asm-offsets.h
asm.h
atomic64_32.h
atomic64_64.h
atomic.h x86, 386 removal: Remove CONFIG_XADD 2012-11-29 13:23:02 -08:00
barrier.h
bios_ebda.h
bitops.h
boot.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
bootparam_utils.h x86, doc: Be explicit about what the x86 struct boot_params requires 2013-03-06 20:34:43 -08:00
bug.h dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
bugs.h
cache.h
cacheflush.h
calgary.h
calling.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ce4100.h
checksum_32.h
checksum_64.h
checksum.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
clocksource.h x86: pvclock: generic pvclock vsyscall initialization 2012-11-27 23:29:09 -02:00
cmpxchg_32.h x86, 386 removal: Remove CONFIG_CMPXCHG 2012-11-29 13:23:01 -08:00
cmpxchg_64.h
cmpxchg.h x86 cmpxchg.h: fix wrong comment 2013-04-25 10:39:04 +02:00
compat.h compat: move compat_siginfo_t definition to asm/compat.h 2012-10-06 03:05:16 +09:00
context_tracking.h context_tracking: Move exception handling to generic code 2013-03-07 17:09:25 +01:00
cpu_device_id.h
cpu.h x86, topology: Debug CPU0 hotplug 2012-11-14 15:28:11 -08:00
cpufeature.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-05-02 14:53:12 -07:00
cpumask.h
cputime.h
current.h
debugreg.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
delay.h
desc_defs.h
desc.h
device.h driver core / ACPI: Move ACPI support to core device and driver types 2012-11-15 00:28:00 +01:00
div64.h
dma-contiguous.h
dma-mapping.h dma-debug: New interfaces to debug dma mapping errors 2012-10-24 17:06:43 +02:00
dma.h
dmi.h
dwarf2.h
e820.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
edac.h
efi.h efi: Pass boot services variable info to runtime code 2013-04-15 21:31:09 +01:00
elf.h mm: use vm_unmapped_area() on x86_64 architecture 2012-12-11 17:22:25 -08:00
emergency-restart.h
entry_arch.h KVM: VMX: Register a new IPI for posted interrupt 2013-04-16 16:32:39 -03:00
exec.h
fb.h
fixmap.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:40:35 -07:00
floppy.h
fpu-internal.h x86: convert to ksignal 2013-02-14 09:21:17 -05:00
frame.h
ftrace.h tracing/syscalls: Allow archs to ignore tracing compat syscalls 2013-02-12 17:46:28 -05:00
futex.h x86, 386 removal: Remove CONFIG_BSWAP 2012-11-29 13:23:02 -08:00
gart.h
genapic.h
geode.h
gpio.h
hardirq.h KVM: VMX: Register a new IPI for posted interrupt 2013-04-16 16:32:39 -03:00
highmem.h
hpet.h x86, hpet: Introduce x86_msi_ops.setup_hpet_msi 2013-01-28 10:48:30 +01:00
hugetlb.h mm/hugetlb: add more arch-defined huge_pte functions 2013-04-29 15:54:33 -07:00
hw_breakpoint.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
hw_irq.h KVM: VMX: Register a new IPI for posted interrupt 2013-04-16 16:32:39 -03:00
hypertransport.h
hypervisor.h x86: Make Linux guest support optional 2013-03-04 13:14:25 -08:00
i387.h
i8259.h
ia32_unistd.h
ia32.h x86: switch to generic old sigaction 2013-02-03 18:16:27 -05:00
idle.h
inat_types.h
inat.h
init.h x86, 64bit, mm: Add generic kernel/ident mapping helper 2013-01-29 15:12:25 -08:00
insn.h
inst.h
intel_scu_ipc.h
io_apic.h x86, io_apic: Introduce eoi_ioapic_pin call-back 2013-01-28 12:51:52 +01:00
io.h Add arch_phys_wc_{add, del} to manipulate WC MTRRs if needed 2013-05-31 13:02:52 +10:00
iomap.h
iommu_table.h
iommu.h
ipi.h
irq_regs.h
irq_remapping.h iommu: Fix compile warnings with forward declarations 2013-04-19 20:34:55 +02:00
irq_vectors.h KVM: VMX: Register a new IPI for posted interrupt 2013-04-16 16:32:39 -03:00
irq.h
irqflags.h
ist.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
jump_label.h
kbdleds.h
Kbuild UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
kdebug.h
kexec.h x86, kexec: Remove 1024G limitation for kexec buffer on 64bit 2013-01-29 15:26:23 -08:00
kgdb.h
kmap_types.h
kmemcheck.h
kprobes.h kprobes/x86: Check Interrupt Flag modifier when registering probe 2013-03-18 10:21:23 +01:00
kvm_emulate.h
kvm_guest.h x86: kvm guest: pvclock vsyscall support 2012-11-27 23:29:10 -02:00
kvm_host.h KVM: x86: Account for failing enable_irq_window for NMI window request 2013-05-02 22:17:38 -03:00
kvm_para.h Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2013-02-24 13:07:18 -08:00
lguest_hcall.h
lguest.h lguest: map Switcher below fixmap. 2013-04-22 15:45:03 +09:30
linkage.h ix86: Tighten asmlinkage_protect() constraints 2013-01-24 11:25:59 +01:00
local64.h
local.h x86, 386 removal: Remove CONFIG_XADD 2012-11-29 13:23:02 -08:00
mach_timer.h
mach_traps.h
math_emu.h
mc146818rtc.h
mce.h x86/mce: Rework cmci_rediscover() to play well with CPU hotplug 2013-04-02 14:04:01 -07:00
microcode_intel.h x86/microcode_intel.h: Define functions and macros for early loading ucode 2013-01-31 13:18:50 -08:00
microcode.h x86/microcode_core_early.c: Define interfaces for early loading ucode 2013-01-31 13:19:12 -08:00
mmconfig.h
mmu_context.h
mmu.h
mmx.h
mmzone_32.h x86-32, mm: Remove reference to resume_map_numa_kva() 2013-01-31 14:12:30 -08:00
mmzone_64.h
mmzone.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
module.h x86, 386 removal: Remove CONFIG_M386 from Kconfig 2012-11-29 13:23:01 -08:00
mpspec_def.h
mpspec.h
mrst-vrtc.h
mrst.h
mshyperv.h X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts 2013-02-12 16:27:15 -08:00
msidef.h
msr.h x86, msr: Unify variable names 2013-04-02 16:03:32 -07:00
mtrr.h Add arch_phys_wc_{add, del} to manipulate WC MTRRs if needed 2013-05-31 13:02:52 +10:00
mutex_32.h
mutex_64.h
mutex.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
mwait.h intel_idle: remove assumption of one C-state per MWAIT flag 2013-02-08 19:29:16 -05:00
nmi.h
nops.h
numa_32.h
numa.h cpu-hotplug,memory-hotplug: clear cpu_to_node() when offlining the node 2013-02-23 17:50:13 -08:00
numaq.h
olpc_ofw.h
olpc.h
page_32_types.h
page_32.h x86: Make it so that __pa_symbol can only process kernel symbols on x86_64 2012-11-16 16:42:09 -08:00
page_64_types.h x86: Drop KERNEL_IMAGE_START 2013-04-02 16:03:29 -07:00
page_64.h x86: Make it so that __pa_symbol can only process kernel symbols on x86_64 2012-11-16 16:42:09 -08:00
page_types.h x86, mm: Move min_pfn_mapped back to mm/init.c 2012-11-17 11:59:24 -08:00
page.h Merge remote-tracking branch 'origin/x86/mm' into x86/mm2 2013-02-01 02:28:36 -08:00
paravirt_types.h Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:41:21 -07:00
paravirt.h Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:41:21 -07:00
parport.h X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
pat.h
pci_64.h
pci_x86.h PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
pci-direct.h
pci-functions.h
pci.h PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
percpu.h x86, 386 removal: Remove CONFIG_CMPXCHG 2012-11-29 13:23:01 -08:00
perf_event_p4.h perf/x86/intel/P4: Robistify P4 PMU types 2013-04-26 09:31:41 +02:00
perf_event.h perf/x86/amd: Enable northbridge performance counters on AMD family 15h 2013-02-16 09:37:27 +01:00
pgalloc.h
pgtable_32_types.h
pgtable_32.h x86/mm: Convert update_mmu_cache() and update_mmu_cache_pmd() to functions 2013-01-24 16:12:13 +01:00
pgtable_64_types.h x86, 64bit: Use a #PF handler to materialize early mappings on demand 2013-01-29 15:20:06 -08:00
pgtable_64.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-21 18:06:55 -08:00
pgtable_types.h x86/mm/cpa: Cleanup split_large_page() and its callee 2013-04-10 14:39:08 +02:00
pgtable-2level_types.h
pgtable-2level.h
pgtable-3level_types.h
pgtable-3level.h
pgtable.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-21 18:06:55 -08:00
posix_types.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
probe_roms.h
processor-cyrix.h
processor-flags.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
processor.h x86, cpu: Convert AMD Erratum 400 2013-04-02 10:12:55 -07:00
prom.h
proto.h x86-64: don't set the early IDT to point directly to 'early_idt_handler' 2013-02-22 13:09:51 -08:00
ptrace.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
pvclock-abi.h
pvclock.h x86: pvclock: generic pvclock vsyscall initialization 2012-11-27 23:29:09 -02:00
realmode.h x86, realmode: Separate real_mode reserve and setup 2013-01-29 15:13:24 -08:00
reboot_fixups.h
reboot.h
required-features.h x86: Require MOVBE feature in cpuid when we use it 2013-01-28 16:59:55 -08:00
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h x86 rwsem: avoid taking slow path when stealing write lock 2013-05-07 07:20:17 -07:00
scatterlist.h
seccomp_32.h
seccomp_64.h
seccomp.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
sections.h
segment.h
serial.h
setup_arch.h
setup.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
shmparam.h
sigcontext.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
sigframe.h
sighandling.h
signal.h x86: switch to generic old sigaction 2013-02-03 18:16:27 -05:00
smap.h
smp.h x86, hotplug: Support functions for CPU0 online/offline 2012-11-14 09:39:48 -08:00
smpboot_hooks.h
sparsemem.h
special_insns.h
spinlock_types.h
spinlock.h
sta2x11.h
stackprotector.h
stacktrace.h
string_32.h
string_64.h
string.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
suspend_32.h x86, gdt, hibernate: Store/load GDT for hibernate path. 2013-05-02 11:27:35 -07:00
suspend_64.h x86, gdt, hibernate: Store/load GDT for hibernate path. 2013-05-02 11:27:35 -07:00
suspend.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
svm.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
swiotlb.h
switch_to.h
sync_bitops.h
sys_ia32.h unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
syscall.h x86: remove the x32 syscall bitmask from syscall_get_nr() 2013-04-02 14:38:09 -07:00
syscalls.h x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...) 2013-05-02 20:36:32 -04:00
tce.h
thread_info.h arch: Consolidate tsk_is_polling() 2013-04-08 17:39:22 +02:00
time.h
timer.h
timex.h
tlb.h x86-32: Fix possible incomplete TLB invalidate with PAE pagetables 2013-04-12 16:56:47 -07:00
tlbflush.h x86/tlbflush.h: Define __native_flush_tlb_global_irq_disabled() 2013-01-31 13:19:16 -08:00
topology.h
trace_clock.h tracing: Format non-nanosec times from tsc clock without a decimal point. 2012-11-13 15:48:40 -05:00
traps.h
tsc.h
uaccess_32.h
uaccess_64.h
uaccess.h x86, doc: Clarify the use of asm("%edx") in uaccess.h 2013-02-12 15:37:02 -08:00
unaligned.h
unistd.h consolidate cond_syscall and SYSCALL_ALIAS declarations 2013-03-03 22:55:19 -05:00
uprobes.h uretprobes/x86: Hijack return address 2013-04-13 15:31:55 +02:00
user32.h
user_32.h
user_64.h
user.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
vdso.h
vga.h
vgtod.h
virtext.h
vm86.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
vmx.h KVM: nVMX: Shadow-vmcs control fields/bits 2013-04-22 10:51:09 +03:00
vsyscall.h UAPI: (Scripted) Disintegrate arch/x86/include/asm 2012-12-14 22:37:13 +00:00
vvar.h
word-at-a-time.h
x2apic.h
x86_init.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-21 18:06:55 -08:00
xcr.h
xor_32.h x86/xor: Add alternative SSE implementation only prefetching once per 64-byte line 2013-01-25 09:23:50 +01:00
xor_64.h x86/xor: Add alternative SSE implementation only prefetching once per 64-byte line 2013-01-25 09:23:50 +01:00
xor_avx.h
xor.h x86/xor: Add alternative SSE implementation only prefetching once per 64-byte line 2013-01-25 09:23:50 +01:00
xsave.h