Max Filippov 2b83878dd7 xtensa: make __pa work with uncached KSEG addresses ... When __pa is applied to virtual address in uncached KSEG region the result is incorrect. Fix it by checking if the original address is in the uncached KSEG and adjusting the result. It looks better than masking off bits because pfn_valid would correctly work with new __pa results and it may be made working in noMMU case, once we get definition for uncached memory view. This is required for the dma_common_mmap and DMA debug code to work correctly: they both indirectly use __pa with coherent DMA addresses. In case of DMA debug the visible effect is false reports that an address mapped for DMA is accessed by CPU. Cc: stable@vger.kernel.org Tested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>		2017-03-30 13:29:20 -07:00
..
asm-offsets.h
asm-uaccess.h	xtensa: split uaccess.h into C and asm sides	2016-09-27 21:15:21 -04:00
asmmacro.h	xtensa: fixes for configs without loop option	2015-11-02 18:02:47 +03:00
atomic.h	locking/atomic: Remove linux/atomic.h:atomic_fetch_or()	2016-06-16 10:48:32 +02:00
barrier.h	xtensa: define __smp_xxx	2016-01-12 20:46:58 +02:00
bitops.h	xtensa: fix __ffs result type	2016-07-24 06:33:29 +03:00
bootparam.h	xtensa: split bootparam and kernel meminfo	2014-04-02 01:35:51 +04:00
bugs.h
cache.h
cacheasm.h	xtensa: define ___unlock_[di]cache_all unconditionally	2016-06-29 04:18:45 +03:00
cacheflush.h	xtensa: support DMA to high memory	2015-11-09 01:25:37 +03:00
checksum.h	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
cmpxchg.h	xtensa: implement fake NMI	2015-08-17 07:33:39 +03:00
coprocessor.h	xtensa: reorganize SR referencing	2012-10-15 21:48:08 -07:00
current.h	xtensa: clean up files to make them code-style compliant	2012-12-18 21:10:25 -08:00
delay.h	xtensa: implement ndelay	2014-01-15 00:28:11 +04:00
device.h	treewide: Move dma_ops from struct dev_archdata into struct device	2017-01-24 12:23:35 -05:00
dma-mapping.h	treewide: Consolidate get_dma_ops() implementations	2017-01-24 12:23:35 -05:00
dma.h
elf.h	xtensa: add support for TLS	2013-02-23 19:35:57 -08:00
fb.h
fixmap.h	xtensa: add alternative kernel memory layouts	2016-07-24 06:33:58 +03:00
flat.h
ftrace.h	ftrace: Make CALLER_ADDRx macros more generic	2014-05-21 03:10:32 -04:00
futex.h	xtensa: implement robust futex atomic uaccess ops	2014-01-14 10:19:51 -08:00
highmem.h	xtensa: add alternative kernel memory layouts	2016-07-24 06:33:58 +03:00
hw_breakpoint.h	xtensa: support hardware breakpoints/watchpoints	2016-03-11 08:53:32 +00:00
hw_irq.h
initialize_mmu.h	xtensa: cleanup MMU setup and kernel layout macros	2016-07-24 06:33:58 +03:00
io.h	xtensa: support ioremap for memory outside KIO region	2016-01-11 17:37:36 +03:00
irq.h	xtensa: implement CPU hotplug	2014-01-14 10:19:59 -08:00
irqflags.h	xtensa: support hardware breakpoints/watchpoints	2016-03-11 08:53:32 +00:00
Kbuild	kprobes: move kprobe declarations to asm-generic/kprobes.h	2017-02-27 18:43:45 -08:00
kmem_layout.h	xtensa: cleanup MMU setup and kernel layout macros	2016-07-24 06:33:58 +03:00
mmu_context.h	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
mmu.h	xtensa: add SMP support	2014-01-14 10:19:58 -08:00
module.h	Make most arch asm/module.h files use asm-generic/module.h	2012-09-28 14:31:03 +09:30
mxregs.h	xtensa: add MX irqchip	2014-01-14 10:19:58 -08:00
nommu_context.h	xtensa: nommu: move init_mmu stub to nommu_context.h	2014-10-21 13:28:44 +04:00
page.h	xtensa: make __pa work with uncached KSEG addresses	2017-03-30 13:29:20 -07:00
param.h	UAPI: (Scripted) Disintegrate arch/xtensa/include/asm	2012-10-15 21:48:53 -07:00
pci-bridge.h	xtensa: clean up files to make them code-style compliant	2012-12-18 21:10:25 -08:00
pci.h	PCI: Move pci_dma_* helpers to common code	2016-03-07 10:40:02 -06:00
perf_event.h	xtensa: enable HAVE_PERF_EVENTS	2014-01-15 00:27:03 +04:00
pgalloc.h	tree wide: get rid of __GFP_REPEAT for order-0 allocations part I	2016-06-24 17:23:52 -07:00
pgtable.h	arch, mm: convert all architectures to use 5level-fixup.h	2017-03-09 11:48:47 -08:00
platform.h	xtensa: extract common CPU reset code into separate function	2016-09-11 23:53:22 -07:00
processor.h	locking/core: Provide common cpu_relax_yield() definition	2016-11-17 08:17:36 +01:00
ptrace.h	xtensa: add SMP support	2014-01-14 10:19:58 -08:00
regs.h	xtensa: support hardware breakpoints/watchpoints	2016-03-11 08:53:32 +00:00
segment.h	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
serial.h
shmparam.h
signal.h	consolidate kernel-side struct sigaction declarations	2013-02-03 15:09:22 -05:00
smp.h	xtensa: implement CPU hotplug	2014-01-14 10:19:59 -08:00
spinlock_types.h	xtensa: fix arch spinlock function names	2014-01-14 10:19:53 -08:00
spinlock.h	locking/spinlock, arch: Update and fix spin_unlock_wait() implementations	2016-06-14 11:55:15 +02:00
stacktrace.h	xtensa: move oprofile stack tracing to stacktrace.c	2015-08-17 07:32:49 +03:00
string.h	xtensa: fix str[n]cmp return value	2013-02-23 19:22:31 -08:00
switch_to.h	Disintegrate asm/system.h for Xtensa	2012-03-28 18:30:03 +01:00
syscall.h	xtensa: switch to generic sigaltstack	2013-02-03 18:16:27 -05:00
sysmem.h	xtensa: drop sysmem and switch to memblock	2016-07-24 06:34:00 +03:00
thread_info.h	xtensa: support hardware breakpoints/watchpoints	2016-03-11 08:53:32 +00:00
timex.h	xtensa: use XTENSA_INT_LEVEL macro in asm/timex.h	2016-01-11 17:32:40 +03:00
tlb.h
tlbflush.h	xtensa: optimize local_flush_tlb_kernel_range	2014-04-06 21:29:17 +04:00
traps.h	xtensa: support hardware breakpoints/watchpoints	2016-03-11 08:53:32 +00:00
types.h	UAPI: (Scripted) Disintegrate arch/xtensa/include/asm	2012-10-15 21:48:53 -07:00
uaccess.h	xtensa: split uaccess.h into C and asm sides	2016-09-27 21:15:21 -04:00
ucontext.h
unaligned.h
unistd.h	consolidate cond_syscall and SYSCALL_ALIAS declarations	2013-03-03 22:55:19 -05:00
user.h
vectors.h	xtensa: allow merging vectors into .text section	2017-03-01 12:32:50 -08:00
vga.h