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6894258eda
linux_dsm_epyc7002/arch/arm64/include/asm
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Christoph Hellwig 6894258eda dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent} 
Since 2009 we have a nice asm-generic header implementing lots of DMA API
functions for architectures using struct dma_map_ops, but unfortunately
it's still missing a lot of APIs that all architectures still have to
duplicate.

This series consolidates the remaining functions, although we still need
arch opt outs for two of them as a few architectures have very
non-standard implementations.

This patch (of 5):

The coherent DMA allocator works the same over all architectures supporting
dma_map operations.

This patch consolidates them and converges the minor differences:

 - the debug_dma helpers are now called from all architectures, including
   those that were previously missing them
 - dma_alloc_from_coherent and dma_release_from_coherent are now always
   called from the generic alloc/free routines instead of the ops
   dma-mapping-common.h always includes dma-coherent.h to get the defintions
   for them, or the stubs if the architecture doesn't support this feature
 - checks for ->alloc / ->free presence are removed.  There is only one
   magic instead of dma_map_ops without them (mic_dma_ops) and that one
   is x86 only anyway.

Besides that only x86 needs special treatment to replace a default devices
if none is passed and tweak the gfp_flags.  An optional arch hook is provided
for that.

[linux@roeck-us.net: fix build]
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10 13:29:01 -07:00
..
xen xen/events: Support event channel rebind on ARM 2015-08-20 12:24:15 +01:00
acenv.h ARM64 / ACPI: Get RSDP and ACPI boot-time tables 2015-03-25 11:49:30 +00:00
acpi.h arm64: psci: factor invocation code to drivers 2015-08-03 12:33:39 +01:00
alternative.h arm64: alternative: put secondary CPUs into polling loop during patch 2015-07-30 19:07:28 +01:00
arch_timer.h arm64: fix missing linux/bug.h include in asm/arch_timer.h 2015-01-07 11:40:59 +00:00
arm-cci.h arm-cci: Get rid of secure transactions for PMU driver 2015-03-27 13:44:35 +00:00
asm-offsets.h
assembler.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
atomic_ll_sc.h arm64: make ll/sc __cmpxchg_case_##name asm consistent 2015-08-04 18:51:04 +01:00
atomic_lse.h arm64: lse: fix lse cmpxchg code indentation 2015-07-29 18:32:09 +01:00
atomic.h arm64: atomics: implement atomic{,64}_cmpxchg using cmpxchg 2015-07-27 15:28:53 +01:00
barrier.h locking, arch: use WRITE_ONCE()/READ_ONCE() in smp_store_release()/smp_load_acquire() 2015-08-03 10:59:30 +02:00
bitops.h arch,arm64: Convert smp_mb__*() 2014-04-18 11:40:33 +02:00
bitrev.h ARM: 8189/1: arm64:add bitrev.h file to support rbit instruction 2014-12-22 16:47:32 +00:00
boot.h arm64: use fixmap region for permanent FDT mapping 2015-06-02 16:31:33 +01:00
bug.h arm64/BUG: Use BRK instruction for generic BUG traps 2015-07-27 11:08:42 +01:00
cache.h arm64: Implement support for read-mostly sections 2014-12-03 10:19:35 +00:00
cacheflush.h arm64: kill flush_cache_all() 2015-05-19 15:27:42 +01:00
cachetype.h arm64: kernel: add support for cpu cache information 2015-01-15 11:55:07 +00:00
cmpxchg.h arm64: cmpxchg: truncate sub-word signed types before comparison 2015-07-30 20:16:53 +01:00
compat.h arm64: compat: Remove incorrect comment in compat_siginfo 2015-02-02 16:44:39 +00:00
compiler.h arm64: Miscellaneous header files 2012-09-17 13:42:21 +01:00
cpu_ops.h ARM64: kernel: unify ACPI and DT cpus initialization 2015-05-19 16:09:29 +01:00
cpu.h arm64: sanity checks: add missing AArch32 registers 2015-01-07 11:40:58 +00:00
cpufeature.h arm64: lse: rename ARM64_CPU_FEAT_LSE_ATOMICS for consistency 2015-07-27 15:28:54 +01:00
cpuidle.h arm64: kernel: rename __cpu_suspend to keep it aligned with arm 2015-06-19 14:46:39 +01:00
cputype.h arm64: kernel: Move config_sctlr_el1 2015-07-27 11:08:41 +01:00
debug-monitors.h arm64: debug: rename enum debug_el to avoid symbol collision 2015-07-27 18:36:54 +01:00
device.h arm64: introduce is_device_dma_coherent 2014-12-04 12:41:49 +00:00
dma-mapping.h dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent} 2015-09-10 13:29:01 -07:00
dmi.h arm64: dmi: Add SMBIOS/DMI support 2014-11-05 09:03:25 +01:00
efi.h arm64/efi: move virtmap init to early initcall 2015-01-22 14:59:25 +00:00
elf.h mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE 2015-04-14 16:49:05 -07:00
esr.h arm64/debug: Add missing #includes 2015-07-27 11:08:42 +01:00
exception.h arm64: Add __exception_irq_entry definition for function graph 2015-08-12 17:23:45 +01:00
exec.h arm64: Miscellaneous header files 2012-09-17 13:42:21 +01:00
fb.h arm64: Device specific operations 2012-09-17 13:42:04 +01:00
fixmap.h arm64: Fix source code file path in comments 2015-08-24 10:18:11 +01:00
fpsimd.h arm64: add support for kernel mode NEON in interrupt context 2014-05-08 11:31:57 +02:00
fpsimdmacros.h arm64: Avoid breakage caused by .altmacro in fpsimd save/restore macros 2015-01-29 17:24:39 +00:00
ftrace.h arm64: ftrace: Add system call tracepoint 2014-05-29 09:08:33 +01:00
futex.h arm64: atomics: prefetch the destination word for write prior to stxr 2015-07-27 15:28:53 +01:00
hardirq.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
hugetlb.h arm64: hugetlb: remove paragraph about writing to FSF 2015-07-27 11:08:40 +01:00
hw_breakpoint.h arm64: ptrace: fix compat hardware watchpoint reporting 2014-08-28 20:01:36 +01:00
hwcap.h arm64: Add COMPAT_HWCAP_LPAE 2014-11-17 10:43:42 +00:00
hypervisor.h arm64/xen: introduce asm/xen header files on arm64 2013-06-07 10:39:45 +00:00
insn.h arm64: insn: Add aarch64_{get,set}_branch_offset 2015-06-03 15:43:24 +01:00
io.h arm64 updates for 4.2, mostly refactoring/clean-up: 2015-06-24 10:02:15 -07:00
irq_work.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
irq.h irqchip: Add GICv2 specific ACPI boot support 2015-03-26 15:13:07 +00:00
irqflags.h arm64: Add macros to manage processor debug state 2014-02-26 11:16:25 +00:00
jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
Kbuild mm: clean up per architecture MM hook header files 2015-07-17 16:39:53 -07:00
kgdb.h arm64: Fix typos in KGDB macros 2014-09-25 15:35:41 +01:00
kvm_arm.h KVM/ARM changes for v4.1: 2015-04-07 18:09:20 +02:00
kvm_asm.h arm64 updates for 4.2, mostly refactoring/clean-up: 2015-06-24 10:02:15 -07:00
kvm_coproc.h arm64: KVM: common infrastructure for handling AArch32 CP14/CP15 2014-07-11 04:57:44 -07:00
kvm_emulate.h Fairly small update, but there are some interesting new features. 2015-02-13 09:55:09 -08:00
kvm_host.h arm64: KVM: Switch vgic save/restore to alternative_insn 2015-06-12 15:12:08 +01:00
kvm_mmio.h KVM: arm/arm64: rework MMIO abort handling to use KVM MMIO bus 2015-03-30 17:07:19 +01:00
kvm_mmu.h arm64 updates for 4.1: 2015-04-16 13:58:29 -05:00
kvm_psci.h ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible 2014-04-30 04:18:57 -07:00
linkage.h arm64: fix alignment padding in assembly code 2012-10-20 11:12:01 +01:00
lse.h arm64: lse: rename ARM64_CPU_FEAT_LSE_ATOMICS for consistency 2015-07-27 15:28:54 +01:00
memblock.h arm64: MMU initialisation 2012-09-17 13:41:56 +01:00
memory.h libnvdimm for 4.3: 2015-09-08 14:35:59 -07:00
mmu_context.h arm64 updates for 4.1: 2015-04-16 13:58:29 -05:00
mmu.h arm64: remove dead code 2015-07-27 11:08:39 +01:00
module.h arm64: Loadable modules 2012-09-17 13:42:19 +01:00
neon.h arm64: add support for kernel mode NEON in interrupt context 2014-05-08 11:31:57 +02:00
opcodes.h arm64: Add AArch32 instruction set condition code checks 2014-11-20 16:33:45 +00:00
page.h arm64 updates for 4.1: 2015-04-16 13:58:29 -05:00
pci.h ARM64 / ACPI: Introduce PCI stub functions for ACPI 2015-03-25 11:49:31 +00:00
percpu.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
perf_event.h arm64: perf: factor out callchain code 2015-07-27 11:08:39 +01:00
pgalloc.h arm64: expose number of page table levels on Kconfig level 2015-04-14 16:49:01 -07:00
pgtable-hwdef.h arm64: Add support for hardware updates of the access and dirty pte bits 2015-07-27 11:08:39 +01:00
pgtable-types.h arm64: expose number of page table levels on Kconfig level 2015-04-14 16:49:01 -07:00
pgtable.h arm64: pgtable: fix definition of pte_valid 2015-07-28 16:14:03 +01:00
pmu.h arm64: pmu: add support for interrupt-affinity property 2015-03-24 15:09:47 +00:00
proc-fns.h arm64: kill flush_cache_all() 2015-05-19 15:27:42 +01:00
processor.h arm64: kernel: Add support for Privileged Access Never 2015-07-27 11:08:41 +01:00
ptrace.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
seccomp.h arm64: add seccomp support 2014-11-28 10:24:59 +00:00
shmparam.h arm64: ELF definitions 2012-09-17 13:42:07 +01:00
signal32.h arm64: Use get_signal() signal_setup_done() 2014-08-06 12:56:16 +02:00
smp_plat.h arm64: remove dead-code depending on CONFIG_UP_LATE_INIT 2015-07-29 18:32:09 +01:00
smp.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
sparsemem.h arm64: mm: update max pa bits to 48 2014-08-19 20:23:02 +01:00
spinlock_types.h arm64: include linux/types.h in asm/spinlock_types.h 2015-07-27 11:09:34 +01:00
spinlock.h arm64: spinlock: fix ll/sc unlock on big-endian systems 2015-07-28 14:48:00 +01:00
stackprotector.h arm64: Add CONFIG_CC_STACKPROTECTOR 2014-07-09 12:23:48 +01:00
stacktrace.h arm64: Exception handling 2012-09-17 10:24:46 +01:00
stat.h UAPI: (Scripted) Disintegrate arch/arm64/include/asm 2012-10-11 11:05:13 +01:00
string.h arm64: lib: Implement optimized string length routines 2014-05-23 15:17:12 +01:00
suspend.h arm64: kernel: rename __cpu_suspend to keep it aligned with arm 2015-06-19 14:46:39 +01:00
sync_bitops.h arm64/xen: introduce asm/xen header files on arm64 2013-06-07 10:39:45 +00:00
syscall.h arm64: Add audit support 2014-07-10 11:06:00 +01:00
sysreg.h arm64: kernel: Add support for Privileged Access Never 2015-07-27 11:08:41 +01:00
system_misc.h arm64: use private ratelimit state along with show_unhandled_signals 2015-06-19 16:26:15 +01:00
thread_info.h arm64: Remove signal translation and exec_domain 2015-04-12 20:58:24 +02:00
timex.h arm64: kernel: compiling issue, need delete read_current_timer() 2013-06-10 17:58:20 +01:00
tlb.h arm64: Use last level TLBI for user pte changes 2015-07-28 11:44:01 +01:00
tlbflush.h arm64: Use last level TLBI for user pte changes 2015-07-28 11:44:01 +01:00
topology.h arm64: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
traps.h arm64: Add __exception_irq_entry definition for function graph 2015-08-12 17:23:45 +01:00
uaccess.h arm64: kernel: Add support for Privileged Access Never 2015-07-27 11:08:41 +01:00
unistd32.h arm64: fix implementation of mmap2 compat syscall 2015-03-19 10:43:51 +00:00
unistd.h arm64 updates for 3.20: 2015-02-11 18:03:54 -08:00
vdso_datapage.h arm64: VDSO support 2012-09-17 13:42:09 +01:00
vdso.h arm64: VDSO support 2012-09-17 13:42:09 +01:00
virt.h arm64: KVM: remove __kvm_hyp_code_{start,end} from hyp.S 2014-07-11 04:57:35 -07:00
word-at-a-time.h arm64: dcache: select DCACHE_WORD_ACCESS for little-endian CPUs 2013-12-19 17:43:08 +00:00