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add dmaengine based s3c24xx dma driver

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Merge tag 's3c24xx-dma' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

From Kukjin Kim, this branch adds device-tree support to the DMA controller
on the older Samsung SoCs. It also adds support for one of the missing SoCs
in the family (2410).

The driver has been Ack:ed by Vinod Koul, but is merged through here due
to dependencies with platform code.

* tag 's3c24xx-dma' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442
  dmaengine: s3c24xx-dma: add support for the s3c2410 type of controller
  ARM: S3C24XX: Fix possible dma selection warning
  ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device
  ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443
  dmaengine: add driver for Samsung s3c24xx SoCs
  ARM: S3C24XX: number the dma clocks
  + Linux 3.12-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2013-10-27 21:42:44 -07:00
commit 3316dee245
246 changed files with 3997 additions and 1266 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/linux/device-mapper.h
View file

@ -406,13 +406,14 @@ int dm_noflush_suspending(struct dm_target *ti);
union map_info *dm_get_mapinfo(struct bio *bio);
union map_info *dm_get_rq_mapinfo(struct request *rq);
struct queue_limits *dm_get_queue_limits(struct mapped_device *md);
/*
* Geometry functions.
*/
int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo);
int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo);
/*-----------------------------------------------------------------
* Functions for manipulating device-mapper tables.
*---------------------------------------------------------------*/

7
include/linux/hyperv.h
View file

@ -30,10 +30,13 @@
/*
* Framework version for util services.
*/
#define UTIL_FW_MINOR 0
#define UTIL_WS2K8_FW_MAJOR 1
#define UTIL_WS2K8_FW_VERSION (UTIL_WS2K8_FW_MAJOR << 16 | UTIL_FW_MINOR)
#define UTIL_FW_MAJOR 3
#define UTIL_FW_MINOR 0
#define UTIL_FW_MAJOR_MINOR (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
#define UTIL_FW_VERSION (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
/*

55
include/linux/memcontrol.h
View file

@ -53,23 +53,6 @@ struct mem_cgroup_reclaim_cookie {
unsigned int generation;
};
enum mem_cgroup_filter_t {
VISIT, /* visit current node */
SKIP, /* skip the current node and continue traversal */
SKIP_TREE, /* skip the whole subtree and continue traversal */
};
/*
* mem_cgroup_filter_t predicate might instruct mem_cgroup_iter_cond how to
* iterate through the hierarchy tree. Each tree element is checked by the
* predicate before it is returned by the iterator. If a filter returns
* SKIP or SKIP_TREE then the iterator code continues traversal (with the
* next node down the hierarchy or the next node that doesn't belong under the
* memcg's subtree).
*/
typedef enum mem_cgroup_filter_t
(*mem_cgroup_iter_filter)(struct mem_cgroup *memcg, struct mem_cgroup *root);
#ifdef CONFIG_MEMCG
/*
* All "charge" functions with gfp_mask should use GFP_KERNEL or
@ -137,18 +120,9 @@ mem_cgroup_prepare_migration(struct page *page, struct page *newpage,
extern void mem_cgroup_end_migration(struct mem_cgroup *memcg,
struct page *oldpage, struct page *newpage, bool migration_ok);
struct mem_cgroup *mem_cgroup_iter_cond(struct mem_cgroup *root,
struct mem_cgroup *prev,
struct mem_cgroup_reclaim_cookie *reclaim,
mem_cgroup_iter_filter cond);
static inline struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
struct mem_cgroup *prev,
struct mem_cgroup_reclaim_cookie *reclaim)
{
return mem_cgroup_iter_cond(root, prev, reclaim, NULL);
}
struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *,
struct mem_cgroup *,
struct mem_cgroup_reclaim_cookie *);
void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
/*
@ -260,9 +234,9 @@ static inline void mem_cgroup_dec_page_stat(struct page *page,
mem_cgroup_update_page_stat(page, idx, -1);
}
enum mem_cgroup_filter_t
mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
struct mem_cgroup *root);
unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
gfp_t gfp_mask,
unsigned long *total_scanned);
void __mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx);
static inline void mem_cgroup_count_vm_event(struct mm_struct *mm,
@ -376,15 +350,6 @@ static inline void mem_cgroup_end_migration(struct mem_cgroup *memcg,
struct page *oldpage, struct page *newpage, bool migration_ok)
{
}
static inline struct mem_cgroup *
mem_cgroup_iter_cond(struct mem_cgroup *root,
struct mem_cgroup *prev,
struct mem_cgroup_reclaim_cookie *reclaim,
mem_cgroup_iter_filter cond)
{
/* first call must return non-NULL, second return NULL */
return (struct mem_cgroup *)(unsigned long)!prev;
}
static inline struct mem_cgroup *
mem_cgroup_iter(struct mem_cgroup *root,
@ -471,11 +436,11 @@ static inline void mem_cgroup_dec_page_stat(struct page *page,
}
static inline
enum mem_cgroup_filter_t
mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
struct mem_cgroup *root)
unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
gfp_t gfp_mask,
unsigned long *total_scanned)
{
return VISIT;
return 0;
}
static inline void mem_cgroup_split_huge_fixup(struct page *head)

6
include/linux/mutex.h
View file

@ -15,8 +15,8 @@
#include <linux/spinlock_types.h>
#include <linux/linkage.h>
#include <linux/lockdep.h>
#include <linux/atomic.h>
#include <asm/processor.h>
/*
* Simple, straightforward mutexes with strict semantics:
@ -175,8 +175,8 @@ extern void mutex_unlock(struct mutex *lock);
extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
#ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX
#define arch_mutex_cpu_relax() cpu_relax()
#ifndef arch_mutex_cpu_relax
# define arch_mutex_cpu_relax() cpu_relax()
#endif
#endif

20
include/linux/of_irq.h
View file

@ -1,8 +1,6 @@
#ifndef __OF_IRQ_H
#define __OF_IRQ_H
#if defined(CONFIG_OF)
struct of_irq;
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/irq.h>
@ -10,14 +8,6 @@ struct of_irq;
#include <linux/ioport.h>
#include <linux/of.h>
/*
* irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
* implements it differently. However, the prototype is the same for all,
* so declare it here regardless of the CONFIG_OF_IRQ setting.
*/
extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
#if defined(CONFIG_OF_IRQ)
/**
* of_irq - container for device_node/irq_specifier pair for an irq controller
* @controller: pointer to interrupt controller device tree node
@ -71,11 +61,17 @@ extern int of_irq_to_resource(struct device_node *dev, int index,
extern int of_irq_count(struct device_node *dev);
extern int of_irq_to_resource_table(struct device_node *dev,
struct resource *res, int nr_irqs);
extern struct device_node *of_irq_find_parent(struct device_node *child);
extern void of_irq_init(const struct of_device_id *matches);
#endif /* CONFIG_OF_IRQ */
#if defined(CONFIG_OF)
/*
* irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
* implements it differently. However, the prototype is the same for all,
* so declare it here regardless of the CONFIG_OF_IRQ setting.
*/
extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
extern struct device_node *of_irq_find_parent(struct device_node *child);
#else /* !CONFIG_OF */
static inline unsigned int irq_of_parse_and_map(struct device_node *dev,

46
include/linux/platform_data/dma-s3c24xx.h Normal file
View file

@ -0,0 +1,46 @@
/*
* S3C24XX DMA handling
*
* Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
/* Helper to encode the source selection constraints for early s3c socs. */
#define S3C24XX_DMA_CHANREQ(src, chan) ((BIT(3) | src) << chan * 4)
enum s3c24xx_dma_bus {
S3C24XX_DMA_APB,
S3C24XX_DMA_AHB,
};
/**
* @bus: on which bus does the peripheral reside - AHB or APB.
* @handshake: is a handshake with the peripheral necessary
* @chansel: channel selection information, depending on variant; reqsel for
* s3c2443 and later and channel-selection map for earlier SoCs
* see CHANSEL doc in s3c2443-dma.c
*/
struct s3c24xx_dma_channel {
enum s3c24xx_dma_bus bus;
bool handshake;
u16 chansel;
};
/**
* struct s3c24xx_dma_platdata - platform specific settings
* @num_phy_channels: number of physical channels
* @channels: array of virtual channel descriptions
* @num_channels: number of virtual channels
*/
struct s3c24xx_dma_platdata {
int num_phy_channels;
struct s3c24xx_dma_channel *channels;
int num_channels;
};
struct dma_chan;
bool s3c24xx_dma_filter(struct dma_chan *chan, void *param);

6
include/linux/smp.h
View file

@ -155,6 +155,12 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
static inline void kick_all_cpus_sync(void) { }
static inline void __smp_call_function_single(int cpuid,
struct call_single_data *data, int wait)
{
on_each_cpu(data->func, data->info, wait);
}
#endif /* !SMP */
/*