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-rw-r--r--include/linux/device.h38
-rw-r--r--include/linux/dma-mapping.h29
-rw-r--r--include/linux/dmapool.h7
-rw-r--r--include/linux/interrupt.h6
-rw-r--r--include/linux/io.h17
-rw-r--r--include/linux/ioport.h20
-rw-r--r--include/linux/pci.h9
7 files changed, 125 insertions, 1 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 5ca1cdba563..26e4692f2d1 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -354,6 +354,41 @@ extern int __must_check device_create_bin_file(struct device *dev,
struct bin_attribute *attr);
extern void device_remove_bin_file(struct device *dev,
struct bin_attribute *attr);
+
+/* device resource management */
+typedef void (*dr_release_t)(struct device *dev, void *res);
+typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data);
+
+#ifdef CONFIG_DEBUG_DEVRES
+extern void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
+ const char *name);
+#define devres_alloc(release, size, gfp) \
+ __devres_alloc(release, size, gfp, #release)
+#else
+extern void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp);
+#endif
+extern void devres_free(void *res);
+extern void devres_add(struct device *dev, void *res);
+extern void * devres_find(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+extern void * devres_get(struct device *dev, void *new_res,
+ dr_match_t match, void *match_data);
+extern void * devres_remove(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+extern int devres_destroy(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+
+/* devres group */
+extern void * __must_check devres_open_group(struct device *dev, void *id,
+ gfp_t gfp);
+extern void devres_close_group(struct device *dev, void *id);
+extern void devres_remove_group(struct device *dev, void *id);
+extern int devres_release_group(struct device *dev, void *id);
+
+/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
+extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+extern void devm_kfree(struct device *dev, void *p);
+
struct device {
struct klist klist_children;
struct klist_node knode_parent; /* node in sibling list */
@@ -397,6 +432,9 @@ struct device {
/* arch specific additions */
struct dev_archdata archdata;
+ spinlock_t devres_lock;
+ struct list_head devres_head;
+
/* class_device migration path */
struct list_head node;
struct class *class;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ff203c465fe..9a663c6db16 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -66,6 +66,33 @@ dma_mark_declared_memory_occupied(struct device *dev,
}
#endif
-#endif
+/*
+ * Managed DMA API
+ */
+extern void *dmam_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp);
+extern void dmam_free_coherent(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle);
+extern void *dmam_alloc_noncoherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp);
+extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle);
+#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+extern int dmam_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+ dma_addr_t device_addr, size_t size,
+ int flags);
+extern void dmam_release_declared_memory(struct device *dev);
+#else /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+static inline int dmam_declare_coherent_memory(struct device *dev,
+ dma_addr_t bus_addr, dma_addr_t device_addr,
+ size_t size, gfp_t gfp)
+{
+ return 0;
+}
+static inline void dmam_release_declared_memory(struct device *dev)
+{
+}
+#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#endif
diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index 76f12f46db7..022e34fcbd1 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -24,5 +24,12 @@ void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t addr);
+/*
+ * Managed DMA pool
+ */
+struct dma_pool *dmam_pool_create(const char *name, struct device *dev,
+ size_t size, size_t align, size_t allocation);
+void dmam_pool_destroy(struct dma_pool *pool);
+
#endif
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index e36e86c869f..5a8ba0b8ccb 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/irqflags.h>
#include <linux/bottom_half.h>
+#include <linux/device.h>
#include <asm/atomic.h>
#include <asm/ptrace.h>
#include <asm/system.h>
@@ -83,6 +84,11 @@ extern int request_irq(unsigned int, irq_handler_t handler,
unsigned long, const char *, void *);
extern void free_irq(unsigned int, void *);
+extern int devm_request_irq(struct device *dev, unsigned int irq,
+ irq_handler_t handler, unsigned long irqflags,
+ const char *devname, void *dev_id);
+extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
+
/*
* On lockdep we dont want to enable hardirqs in hardirq
* context. Use local_irq_enable_in_hardirq() to annotate
diff --git a/include/linux/io.h b/include/linux/io.h
index 81877ea3930..f5edf9c5de0 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -28,6 +28,23 @@ void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
int ioremap_page_range(unsigned long addr, unsigned long end,
unsigned long phys_addr, pgprot_t prot);
+/*
+ * Managed iomap interface
+ */
+void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
+ unsigned int nr);
+void devm_ioport_unmap(struct device *dev, void __iomem *addr);
+
+void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
+ unsigned long size);
+void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset,
+ unsigned long size);
+void devm_iounmap(struct device *dev, void __iomem *addr);
+
+void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
+void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
+void __iomem * const * pcim_iomap_table(struct pci_dev *pdev);
+
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 15228d79c5b..6859a3b1408 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -137,4 +137,24 @@ static inline int __deprecated check_region(resource_size_t s,
{
return __check_region(&ioport_resource, s, n);
}
+
+/* Wrappers for managed devices */
+struct device;
+#define devm_request_region(dev,start,n,name) \
+ __devm_request_region(dev, &ioport_resource, (start), (n), (name))
+#define devm_request_mem_region(dev,start,n,name) \
+ __devm_request_region(dev, &iomem_resource, (start), (n), (name))
+
+extern struct resource * __devm_request_region(struct device *dev,
+ struct resource *parent, resource_size_t start,
+ resource_size_t n, const char *name);
+
+#define devm_release_region(start,n) \
+ __devm_release_region(dev, &ioport_resource, (start), (n))
+#define devm_release_mem_region(start,n) \
+ __devm_release_region(dev, &iomem_resource, (start), (n))
+
+extern void __devm_release_region(struct device *dev, struct resource *parent,
+ resource_size_t start, resource_size_t n);
+
#endif /* _LINUX_IOPORT_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 805412cc687..9e3042e7e1c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -167,6 +167,7 @@ struct pci_dev {
unsigned int broken_parity_status:1; /* Device generates false positive parity */
unsigned int msi_enabled:1;
unsigned int msix_enabled:1;
+ unsigned int is_managed:1;
atomic_t enable_cnt; /* pci_enable_device has been called */
u32 saved_config_space[16]; /* config space saved at suspend time */
@@ -528,6 +529,14 @@ static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val
int __must_check pci_enable_device(struct pci_dev *dev);
int __must_check pci_enable_device_bars(struct pci_dev *dev, int mask);
+int __must_check pcim_enable_device(struct pci_dev *pdev);
+void pcim_pin_device(struct pci_dev *pdev);
+
+static inline int pci_is_managed(struct pci_dev *pdev)
+{
+ return pdev->is_managed;
+}
+
void pci_disable_device(struct pci_dev *dev);
void pci_set_master(struct pci_dev *dev);
#define HAVE_PCI_SET_MWI
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-21 16:00:04 +0000