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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 21:19:05 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 21:19:05 -0400
commit61464c8357c8f6b780e4c44f5c79471799c51ca7 (patch)
tree4509cf075403965528f380f2f825c46908fb7d4e /arch/arm/include
parent47061eda2584b9e4516d1e3a9713406a3a559ac8 (diff)
parent9cf1c871526cf6bfec2a653e1e068ee72592542c (diff)
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc general cleanups from Olof Johansson: "This is a large branch that contains a handful of different cleanups: - Fixing up the I/O space remapping on PCI on ARM. This is a series from Rob Herring that restructures how all pci devices allocate I/O space, and it's part of the work to allow multiplatform kernels. - A number of cleanup series for OMAP, moving and removing some headers, sparse irq rework and in general preparation for multiplatform. - Final removal of all non-DT boards for Tegra, it is now device-tree-only! - Removal of a stale platform, nxp4008. It's an old mobile chipset that is no longer in use, and was very likely never really used with a mainline kernel. We have not been able to find anyone interested in keeping it around in the kernel. - Removal of the legacy dmaengine driver on tegra + A handful of other things that I haven't described above." Fix up some conflicts with the staging tree (and because nxp4008 was removed) * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits) ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6 ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus ARM: mmp: using for_each_set_bit to simplify the code ARM: tegra: harmony: fix ldo7 regulator-name ARM: OMAP2+: Make omap4-keypad.h local ARM: OMAP2+: Make l4_3xxx.h local ARM: OMAP2+: Make l4_2xxx.h local ARM: OMAP2+: Make l3_3xxx.h local ARM: OMAP2+: Make l3_2xxx.h local ARM: OMAP1: Move irda.h from plat to mach ARM: OMAP2+: Make hdq1w.h local ARM: OMAP2+: Make gpmc-smsc911x.h local ARM: OMAP2+: Make gpmc-smc91x.h local ARM: OMAP1: Move flash.h from plat to mach ARM: OMAP2+: Make debug-devices.h local ARM: OMAP1: Move board-voiceblue.h from plat to mach ARM: OMAP1: Move board-sx1.h from plat to mach ARM: OMAP2+: Make omap-wakeupgen.h local ARM: OMAP2+: Make omap-secure.h local ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local ...
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/hardware/iop3xx.h12
-rw-r--r--arch/arm/include/asm/io.h8
-rw-r--r--arch/arm/include/asm/mach/map.h8
-rw-r--r--arch/arm/include/asm/mach/pci.h13
-rw-r--r--arch/arm/include/asm/perf_event.h9
-rw-r--r--arch/arm/include/asm/pmu.h77
6 files changed, 62 insertions, 65 deletions
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index 2ff2c75a4639..02fe2fbe2477 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -217,18 +217,8 @@ extern int iop3xx_get_init_atu(void);
217#define IOP3XX_PCI_LOWER_MEM_PA 0x80000000 217#define IOP3XX_PCI_LOWER_MEM_PA 0x80000000
218#define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000 218#define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000
219 219
220#define IOP3XX_PCI_IO_WINDOW_SIZE 0x00010000
221#define IOP3XX_PCI_LOWER_IO_PA 0x90000000 220#define IOP3XX_PCI_LOWER_IO_PA 0x90000000
222#define IOP3XX_PCI_LOWER_IO_VA 0xfe000000 221#define IOP3XX_PCI_LOWER_IO_BA 0x00000000
223#define IOP3XX_PCI_LOWER_IO_BA 0x90000000
224#define IOP3XX_PCI_UPPER_IO_PA (IOP3XX_PCI_LOWER_IO_PA +\
225 IOP3XX_PCI_IO_WINDOW_SIZE - 1)
226#define IOP3XX_PCI_UPPER_IO_VA (IOP3XX_PCI_LOWER_IO_VA +\
227 IOP3XX_PCI_IO_WINDOW_SIZE - 1)
228#define IOP3XX_PCI_IO_PHYS_TO_VIRT(addr) (((u32) (addr) -\
229 IOP3XX_PCI_LOWER_IO_PA) +\
230 IOP3XX_PCI_LOWER_IO_VA)
231
232 222
233#ifndef __ASSEMBLY__ 223#ifndef __ASSEMBLY__
234 224
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 815c669fec0a..8f4db67533e5 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -113,11 +113,19 @@ static inline void __iomem *__typesafe_io(unsigned long addr)
113#define __iowmb() do { } while (0) 113#define __iowmb() do { } while (0)
114#endif 114#endif
115 115
116/* PCI fixed i/o mapping */
117#define PCI_IO_VIRT_BASE 0xfee00000
118
119extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr);
120
116/* 121/*
117 * Now, pick up the machine-defined IO definitions 122 * Now, pick up the machine-defined IO definitions
118 */ 123 */
119#ifdef CONFIG_NEED_MACH_IO_H 124#ifdef CONFIG_NEED_MACH_IO_H
120#include <mach/io.h> 125#include <mach/io.h>
126#elif defined(CONFIG_PCI)
127#define IO_SPACE_LIMIT ((resource_size_t)0xfffff)
128#define __io(a) __typesafe_io(PCI_IO_VIRT_BASE + ((a) & IO_SPACE_LIMIT))
121#else 129#else
122#define __io(a) __typesafe_io((a) & IO_SPACE_LIMIT) 130#define __io(a) __typesafe_io((a) & IO_SPACE_LIMIT)
123#endif 131#endif
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index a6efcdd6fd25..195ac2f9d3d3 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -9,6 +9,9 @@
9 * 9 *
10 * Page table mapping constructs and function prototypes 10 * Page table mapping constructs and function prototypes
11 */ 11 */
12#ifndef __ASM_MACH_MAP_H
13#define __ASM_MACH_MAP_H
14
12#include <asm/io.h> 15#include <asm/io.h>
13 16
14struct map_desc { 17struct map_desc {
@@ -34,6 +37,8 @@ struct map_desc {
34 37
35#ifdef CONFIG_MMU 38#ifdef CONFIG_MMU
36extern void iotable_init(struct map_desc *, int); 39extern void iotable_init(struct map_desc *, int);
40extern void vm_reserve_area_early(unsigned long addr, unsigned long size,
41 void *caller);
37 42
38struct mem_type; 43struct mem_type;
39extern const struct mem_type *get_mem_type(unsigned int type); 44extern const struct mem_type *get_mem_type(unsigned int type);
@@ -44,4 +49,7 @@ extern int ioremap_page(unsigned long virt, unsigned long phys,
44 const struct mem_type *mtype); 49 const struct mem_type *mtype);
45#else 50#else
46#define iotable_init(map,num) do { } while (0) 51#define iotable_init(map,num) do { } while (0)
52#define vm_reserve_area_early(a,s,c) do { } while (0)
53#endif
54
47#endif 55#endif
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 26c511fddf8f..db9fedb57f2c 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -11,6 +11,8 @@
11#ifndef __ASM_MACH_PCI_H 11#ifndef __ASM_MACH_PCI_H
12#define __ASM_MACH_PCI_H 12#define __ASM_MACH_PCI_H
13 13
14#include <linux/ioport.h>
15
14struct pci_sys_data; 16struct pci_sys_data;
15struct pci_ops; 17struct pci_ops;
16struct pci_bus; 18struct pci_bus;
@@ -42,6 +44,8 @@ struct pci_sys_data {
42 unsigned long io_offset; /* bus->cpu IO mapping offset */ 44 unsigned long io_offset; /* bus->cpu IO mapping offset */
43 struct pci_bus *bus; /* PCI bus */ 45 struct pci_bus *bus; /* PCI bus */
44 struct list_head resources; /* root bus resources (apertures) */ 46 struct list_head resources; /* root bus resources (apertures) */
47 struct resource io_res;
48 char io_res_name[12];
45 /* Bridge swizzling */ 49 /* Bridge swizzling */
46 u8 (*swizzle)(struct pci_dev *, u8 *); 50 u8 (*swizzle)(struct pci_dev *, u8 *);
47 /* IRQ mapping */ 51 /* IRQ mapping */
@@ -55,6 +59,15 @@ struct pci_sys_data {
55void pci_common_init(struct hw_pci *); 59void pci_common_init(struct hw_pci *);
56 60
57/* 61/*
62 * Setup early fixed I/O mapping.
63 */
64#if defined(CONFIG_PCI)
65extern void pci_map_io_early(unsigned long pfn);
66#else
67static inline void pci_map_io_early(unsigned long pfn) {}
68#endif
69
70/*
58 * PCI controllers 71 * PCI controllers
59 */ 72 */
60extern struct pci_ops iop3xx_ops; 73extern struct pci_ops iop3xx_ops;
diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h
index e074948d8143..625cd621a436 100644
--- a/arch/arm/include/asm/perf_event.h
+++ b/arch/arm/include/asm/perf_event.h
@@ -12,6 +12,13 @@
12#ifndef __ARM_PERF_EVENT_H__ 12#ifndef __ARM_PERF_EVENT_H__
13#define __ARM_PERF_EVENT_H__ 13#define __ARM_PERF_EVENT_H__
14 14
15/* Nothing to see here... */ 15/*
16 * The ARMv7 CPU PMU supports up to 32 event counters.
17 */
18#define ARMPMU_MAX_HWEVENTS 32
19
20#define HW_OP_UNSUPPORTED 0xFFFF
21#define C(_x) PERF_COUNT_HW_CACHE_##_x
22#define CACHE_OP_UNSUPPORTED 0xFFFF
16 23
17#endif /* __ARM_PERF_EVENT_H__ */ 24#endif /* __ARM_PERF_EVENT_H__ */
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index 4432305f4a2a..a26170dce02e 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -16,69 +16,30 @@
16#include <linux/perf_event.h> 16#include <linux/perf_event.h>
17 17
18/* 18/*
19 * Types of PMUs that can be accessed directly and require mutual
20 * exclusion between profiling tools.
21 */
22enum arm_pmu_type {
23 ARM_PMU_DEVICE_CPU = 0,
24 ARM_NUM_PMU_DEVICES,
25};
26
27/*
28 * struct arm_pmu_platdata - ARM PMU platform data 19 * struct arm_pmu_platdata - ARM PMU platform data
29 * 20 *
30 * @handle_irq: an optional handler which will be called from the 21 * @handle_irq: an optional handler which will be called from the
31 * interrupt and passed the address of the low level handler, 22 * interrupt and passed the address of the low level handler,
32 * and can be used to implement any platform specific handling 23 * and can be used to implement any platform specific handling
33 * before or after calling it. 24 * before or after calling it.
34 * @enable_irq: an optional handler which will be called after 25 * @runtime_resume: an optional handler which will be called by the
35 * request_irq and be used to handle some platform specific 26 * runtime PM framework following a call to pm_runtime_get().
36 * irq enablement 27 * Note that if pm_runtime_get() is called more than once in
37 * @disable_irq: an optional handler which will be called before 28 * succession this handler will only be called once.
38 * free_irq and be used to handle some platform specific 29 * @runtime_suspend: an optional handler which will be called by the
39 * irq disablement 30 * runtime PM framework following a call to pm_runtime_put().
31 * Note that if pm_runtime_get() is called more than once in
32 * succession this handler will only be called following the
33 * final call to pm_runtime_put() that actually disables the
34 * hardware.
40 */ 35 */
41struct arm_pmu_platdata { 36struct arm_pmu_platdata {
42 irqreturn_t (*handle_irq)(int irq, void *dev, 37 irqreturn_t (*handle_irq)(int irq, void *dev,
43 irq_handler_t pmu_handler); 38 irq_handler_t pmu_handler);
44 void (*enable_irq)(int irq); 39 int (*runtime_resume)(struct device *dev);
45 void (*disable_irq)(int irq); 40 int (*runtime_suspend)(struct device *dev);
46}; 41};
47 42
48#ifdef CONFIG_CPU_HAS_PMU
49
50/**
51 * reserve_pmu() - reserve the hardware performance counters
52 *
53 * Reserve the hardware performance counters in the system for exclusive use.
54 * Returns 0 on success or -EBUSY if the lock is already held.
55 */
56extern int
57reserve_pmu(enum arm_pmu_type type);
58
59/**
60 * release_pmu() - Relinquish control of the performance counters
61 *
62 * Release the performance counters and allow someone else to use them.
63 */
64extern void
65release_pmu(enum arm_pmu_type type);
66
67#else /* CONFIG_CPU_HAS_PMU */
68
69#include <linux/err.h>
70
71static inline int
72reserve_pmu(enum arm_pmu_type type)
73{
74 return -ENODEV;
75}
76
77static inline void
78release_pmu(enum arm_pmu_type type) { }
79
80#endif /* CONFIG_CPU_HAS_PMU */
81
82#ifdef CONFIG_HW_PERF_EVENTS 43#ifdef CONFIG_HW_PERF_EVENTS
83 44
84/* The events for a given PMU register set. */ 45/* The events for a given PMU register set. */
@@ -103,7 +64,6 @@ struct pmu_hw_events {
103 64
104struct arm_pmu { 65struct arm_pmu {
105 struct pmu pmu; 66 struct pmu pmu;
106 enum arm_pmu_type type;
107 cpumask_t active_irqs; 67 cpumask_t active_irqs;
108 char *name; 68 char *name;
109 irqreturn_t (*handle_irq)(int irq_num, void *dev); 69 irqreturn_t (*handle_irq)(int irq_num, void *dev);
@@ -118,6 +78,8 @@ struct arm_pmu {
118 void (*start)(void); 78 void (*start)(void);
119 void (*stop)(void); 79 void (*stop)(void);
120 void (*reset)(void *); 80 void (*reset)(void *);
81 int (*request_irq)(irq_handler_t handler);
82 void (*free_irq)(void);
121 int (*map_event)(struct perf_event *event); 83 int (*map_event)(struct perf_event *event);
122 int num_events; 84 int num_events;
123 atomic_t active_events; 85 atomic_t active_events;
@@ -129,7 +91,9 @@ struct arm_pmu {
129 91
130#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) 92#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu))
131 93
132int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type); 94extern const struct dev_pm_ops armpmu_dev_pm_ops;
95
96int armpmu_register(struct arm_pmu *armpmu, char *name, int type);
133 97
134u64 armpmu_event_update(struct perf_event *event, 98u64 armpmu_event_update(struct perf_event *event,
135 struct hw_perf_event *hwc, 99 struct hw_perf_event *hwc,
@@ -139,6 +103,13 @@ int armpmu_event_set_period(struct perf_event *event,
139 struct hw_perf_event *hwc, 103 struct hw_perf_event *hwc,
140 int idx); 104 int idx);
141 105
106int armpmu_map_event(struct perf_event *event,
107 const unsigned (*event_map)[PERF_COUNT_HW_MAX],
108 const unsigned (*cache_map)[PERF_COUNT_HW_CACHE_MAX]
109 [PERF_COUNT_HW_CACHE_OP_MAX]
110 [PERF_COUNT_HW_CACHE_RESULT_MAX],
111 u32 raw_event_mask);
112
142#endif /* CONFIG_HW_PERF_EVENTS */ 113#endif /* CONFIG_HW_PERF_EVENTS */
143 114
144#endif /* __ARM_PMU_H__ */ 115#endif /* __ARM_PMU_H__ */