From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Tue, 8 Sep 2015 01:01:14 -0300
Subject: Linux-libre 4.2-gnu
---
arch/xtensa/Kconfig | 2 +-
arch/xtensa/include/asm/Kbuild | 2 +-
arch/xtensa/include/asm/dma-mapping.h | 19 ++++++++++++-------
arch/xtensa/include/asm/io.h | 1 +
arch/xtensa/include/asm/pci.h | 2 +-
arch/xtensa/mm/fault.c | 4 ++--
arch/xtensa/mm/highmem.c | 2 ++
arch/xtensa/platforms/iss/network.c | 4 +---
8 files changed, 21 insertions(+), 15 deletions(-)
(limited to 'arch/xtensa')
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 87be10e8b..e5b872ba2 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -151,7 +151,7 @@ config HAVE_SMP
the CPU core definition and currently needs to be selected manually.
Multiprocessor support in implemented with external cache and
- interrupt controlers.
+ interrupt controllers.
The MX interrupt distributer adds Interprocessor Interrupts
and causes the IRQ numbers to be increased by 4 for devices
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 86a9ab2e2..5b478accd 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -19,10 +19,10 @@ generic-y += linkage.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
+generic-y += mm-arch-hooks.h
generic-y += percpu.h
generic-y += preempt.h
generic-y += resource.h
-generic-y += scatterlist.h
generic-y += sections.h
generic-y += siginfo.h
generic-y += statfs.h
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index ba78ccf65..1f5f6dc09 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -52,14 +52,15 @@ dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
}
static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
enum dma_data_direction direction)
{
int i;
+ struct scatterlist *sg;
BUG_ON(direction == DMA_NONE);
- for (i = 0; i < nents; i++, sg++ ) {
+ for_each_sg(sglist, sg, nents, i) {
BUG_ON(!sg_page(sg));
sg->dma_address = sg_phys(sg);
@@ -124,20 +125,24 @@ dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
consistent_sync((void *)bus_to_virt(dma_handle)+offset,size,direction);
}
static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
enum dma_data_direction dir)
{
int i;
- for (i = 0; i < nelems; i++, sg++)
+ struct scatterlist *sg;
+
+ for_each_sg(sglist, sg, nelems, i)
consistent_sync(sg_virt(sg), sg->length, dir);
}
static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction dir)
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
+ int nelems, enum dma_data_direction dir)
{
int i;
- for (i = 0; i < nelems; i++, sg++)
+ struct scatterlist *sg;
+
+ for_each_sg(sglist, sg, nelems, i)
consistent_sync(sg_virt(sg), sg->length, dir);
}
static inline int
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index fe1600a09..c39bb6e61 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -59,6 +59,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset,
}
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
index 5d52dc43d..e438a00fb 100644
--- a/arch/xtensa/include/asm/pci.h
+++ b/arch/xtensa/include/asm/pci.h
@@ -33,7 +33,7 @@ extern struct pci_controller* pcibios_alloc_controller(void);
#include <linux/types.h>
#include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
#include <linux/string.h>
#include <asm/io.h>
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index 9e3571a65..83a44a33c 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -15,10 +15,10 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/hardirq.h>
+#include <linux/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/hardirq.h>
-#include <asm/uaccess.h>
#include <asm/pgalloc.h>
DEFINE_PER_CPU(unsigned long, asid_cache) = ASID_USER_FIRST;
@@ -57,7 +57,7 @@ void do_page_fault(struct pt_regs *regs)
/* If we're in an interrupt or have no user
* context, we must not take the fault..
*/
- if (in_atomic() || !mm) {
+ if (faulthandler_disabled() || !mm) {
bad_page_fault(regs, address, SIGSEGV);
return;
}
diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c
index 8cfb71ec0..184ceadcc 100644
--- a/arch/xtensa/mm/highmem.c
+++ b/arch/xtensa/mm/highmem.c
@@ -42,6 +42,7 @@ void *kmap_atomic(struct page *page)
enum fixed_addresses idx;
unsigned long vaddr;
+ preempt_disable();
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
@@ -79,6 +80,7 @@ void __kunmap_atomic(void *kvaddr)
}
pagefault_enable();
+ preempt_enable();
}
EXPORT_SYMBOL(__kunmap_atomic);
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 17b1ef323..8ab021b1f 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -681,6 +681,4 @@ static int iss_net_init(void)
return 1;
}
-
-module_init(iss_net_init);
-
+device_initcall(iss_net_init);
--
cgit v1.2.3-54-g00ecf