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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-05 15:57:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-05 15:57:04 -0700
commiteb3d3ec567e868c8a3bfbfdfc9465ffd52983d11 (patch)
tree75acf38b8d73cd281e5ce4dcc941faf48e244b98 /include/linux
parentc3c55a07203947f72afa50a3218460b27307c47d (diff)
parentbd63ce27d9d62bc40a962b991cbbbe4f0dc913d2 (diff)
Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next
Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/device.h2
-rw-r--r--include/linux/dma-mapping.h7
-rw-r--r--include/linux/of_address.h14
-rw-r--r--include/linux/suspend.h2
-rw-r--r--include/linux/uprobes.h3
5 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 580e3eed4b78..af424acd393d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -692,6 +692,7 @@ struct acpi_dev_node {
* @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all
* hardware supports 64-bit addresses for consistent allocations
* such descriptors.
+ * @dma_pfn_offset: offset of DMA memory range relatively of RAM
* @dma_parms: A low level driver may set these to teach IOMMU code about
* segment limitations.
* @dma_pools: Dma pools (if dma'ble device).
@@ -759,6 +760,7 @@ struct device {
not all hardware supports
64 bit addresses for consistent
allocations such descriptors. */
+ unsigned long dma_pfn_offset;
struct device_dma_parameters *dma_parms;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 0c3eab1e39ac..931b70986272 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -129,6 +129,13 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
extern u64 dma_get_required_mask(struct device *dev);
+#ifndef set_arch_dma_coherent_ops
+static inline int set_arch_dma_coherent_ops(struct device *dev)
+{
+ return 0;
+}
+#endif
+
static inline unsigned int dma_get_max_seg_size(struct device *dev)
{
return dev->dma_parms ? dev->dma_parms->max_segment_size : 65536;
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 906ca7681756..c13b8782a4eb 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -62,6 +62,9 @@ extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
extern struct of_pci_range *of_pci_range_parser_one(
struct of_pci_range_parser *parser,
struct of_pci_range *range);
+extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
+ u64 *paddr, u64 *size);
+extern bool of_dma_is_coherent(struct device_node *np);
#else /* CONFIG_OF_ADDRESS */
static inline struct device_node *of_find_matching_node_by_address(
struct device_node *from,
@@ -89,6 +92,17 @@ static inline struct of_pci_range *of_pci_range_parser_one(
{
return NULL;
}
+
+static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
+ u64 *paddr, u64 *size)
+{
+ return -ENODEV;
+}
+
+static inline bool of_dma_is_coherent(struct device_node *np)
+{
+ return false;
+}
#endif /* CONFIG_OF_ADDRESS */
#ifdef CONFIG_OF
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 91d66fd8dce1..f76994b9396c 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -327,6 +327,8 @@ extern unsigned long get_safe_page(gfp_t gfp_mask);
extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
extern int hibernate(void);
extern bool system_entering_hibernation(void);
+asmlinkage int swsusp_save(void);
+extern struct pbe *restore_pblist;
#else /* CONFIG_HIBERNATION */
static inline void register_nosave_region(unsigned long b, unsigned long e) {}
static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index edff2b97b864..c52f827ba6ce 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -32,6 +32,7 @@ struct vm_area_struct;
struct mm_struct;
struct inode;
struct notifier_block;
+struct page;
#define UPROBE_HANDLER_REMOVE 1
#define UPROBE_HANDLER_MASK 1
@@ -127,6 +128,8 @@ extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned l
extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
extern bool __weak arch_uprobe_ignore(struct arch_uprobe *aup, struct pt_regs *regs);
+extern void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
+ void *src, unsigned long len);
#else /* !CONFIG_UPROBES */
struct uprobes_state {
};