ion: isolate msm-specific ion extensions
This is another step in the process of isolating msm-specific ion
features from stock ion.
Change-Id: I3a437dbc618cb70859126c81596373338ad06500
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
diff --git a/include/linux/ion.h b/include/linux/ion.h
index 85bb182..85e5002 100644
--- a/include/linux/ion.h
+++ b/include/linux/ion.h
@@ -39,8 +39,6 @@
ION_HEAP_TYPE_SYSTEM,
ION_HEAP_TYPE_SYSTEM_CONTIG,
ION_HEAP_TYPE_CARVEOUT,
- ION_HEAP_TYPE_IOMMU,
- ION_HEAP_TYPE_CP,
ION_HEAP_TYPE_CUSTOM, /* must be last so device specific heaps always
are at the end of this enum */
ION_NUM_HEAPS,
@@ -49,7 +47,6 @@
#define ION_HEAP_SYSTEM_MASK (1 << ION_HEAP_TYPE_SYSTEM)
#define ION_HEAP_SYSTEM_CONTIG_MASK (1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
#define ION_HEAP_CARVEOUT_MASK (1 << ION_HEAP_TYPE_CARVEOUT)
-#define ION_HEAP_CP_MASK (1 << ION_HEAP_TYPE_CP)
/**
* heap flags - the lower 16 bits are used by core ion, the upper 16
@@ -60,81 +57,6 @@
maintenance when the buffer is
mapped for dma */
-/**
- * These are the only ids that should be used for Ion heap ids.
- * The ids listed are the order in which allocation will be attempted
- * if specified. Don't swap the order of heap ids unless you know what
- * you are doing!
- * Id's are spaced by purpose to allow new Id's to be inserted in-between (for
- * possible fallbacks)
- */
-
-enum ion_heap_ids {
- INVALID_HEAP_ID = -1,
- ION_CP_MM_HEAP_ID = 8,
- ION_CP_MFC_HEAP_ID = 12,
- ION_CP_WB_HEAP_ID = 16, /* 8660 only */
- ION_CAMERA_HEAP_ID = 20, /* 8660 only */
- ION_SF_HEAP_ID = 24,
- ION_IOMMU_HEAP_ID = 25,
- ION_QSECOM_HEAP_ID = 27,
- ION_AUDIO_HEAP_ID = 28,
-
- ION_MM_FIRMWARE_HEAP_ID = 29,
- ION_SYSTEM_HEAP_ID = 30,
-
- ION_HEAP_ID_RESERVED = 31 /** Bit reserved for ION_SECURE flag */
-};
-
-enum ion_fixed_position {
- NOT_FIXED,
- FIXED_LOW,
- FIXED_MIDDLE,
- FIXED_HIGH,
-};
-
-enum cp_mem_usage {
- VIDEO_BITSTREAM = 0x1,
- VIDEO_PIXEL = 0x2,
- VIDEO_NONPIXEL = 0x3,
- MAX_USAGE = 0x4,
- UNKNOWN = 0x7FFFFFFF,
-};
-
-/**
- * Flag to use when allocating to indicate that a heap is secure.
- */
-#define ION_SECURE (1 << ION_HEAP_ID_RESERVED)
-
-/**
- * Macro should be used with ion_heap_ids defined above.
- */
-#define ION_HEAP(bit) (1 << (bit))
-
-#define ION_VMALLOC_HEAP_NAME "vmalloc"
-#define ION_AUDIO_HEAP_NAME "audio"
-#define ION_SF_HEAP_NAME "sf"
-#define ION_MM_HEAP_NAME "mm"
-#define ION_CAMERA_HEAP_NAME "camera_preview"
-#define ION_IOMMU_HEAP_NAME "iommu"
-#define ION_MFC_HEAP_NAME "mfc"
-#define ION_WB_HEAP_NAME "wb"
-#define ION_MM_FIRMWARE_HEAP_NAME "mm_fw"
-#define ION_QSECOM_HEAP_NAME "qsecom"
-#define ION_FMEM_HEAP_NAME "fmem"
-
-#define ION_SET_CACHED(__cache) (__cache | ION_FLAG_CACHED)
-#define ION_SET_UNCACHED(__cache) (__cache & ~ION_FLAG_CACHED)
-
-#define ION_IS_CACHED(__flags) ((__flags) & ION_FLAG_CACHED)
-
-
-/*
- * This flag allows clients when mapping into the IOMMU to specify to
- * defer un-mapping from the IOMMU until the buffer memory is freed.
- */
-#define ION_IOMMU_UNMAP_DELAYED 1
-
#ifdef __KERNEL__
#include <linux/err.h>
#include <mach/ion.h>
@@ -175,72 +97,6 @@
};
/**
- * struct ion_cp_heap_pdata - defines a content protection heap in the given
- * platform
- * @permission_type: Memory ID used to identify the memory to TZ
- * @align: Alignment requirement for the memory
- * @secure_base: Base address for securing the heap.
- * Note: This might be different from actual base address
- * of this heap in the case of a shared heap.
- * @secure_size: Memory size for securing the heap.
- * Note: This might be different from actual size
- * of this heap in the case of a shared heap.
- * @reusable Flag indicating whether this heap is reusable of not.
- * (see FMEM)
- * @mem_is_fmem Flag indicating whether this memory is coming from fmem
- * or not.
- * @fixed_position If nonzero, position in the fixed area.
- * @virt_addr: Virtual address used when using fmem.
- * @iommu_map_all: Indicates whether we should map whole heap into IOMMU.
- * @iommu_2x_map_domain: Indicates the domain to use for overmapping.
- * @request_region: function to be called when the number of allocations
- * goes from 0 -> 1
- * @release_region: function to be called when the number of allocations
- * goes from 1 -> 0
- * @setup_region: function to be called upon ion registration
- *
- */
-struct ion_cp_heap_pdata {
- enum ion_permission_type permission_type;
- unsigned int align;
- ion_phys_addr_t secure_base; /* Base addr used when heap is shared */
- size_t secure_size; /* Size used for securing heap when heap is shared*/
- int reusable;
- int mem_is_fmem;
- enum ion_fixed_position fixed_position;
- int iommu_map_all;
- int iommu_2x_map_domain;
- ion_virt_addr_t *virt_addr;
- int (*request_region)(void *);
- int (*release_region)(void *);
- void *(*setup_region)(void);
-};
-
-/**
- * struct ion_co_heap_pdata - defines a carveout heap in the given platform
- * @adjacent_mem_id: Id of heap that this heap must be adjacent to.
- * @align: Alignment requirement for the memory
- * @mem_is_fmem Flag indicating whether this memory is coming from fmem
- * or not.
- * @fixed_position If nonzero, position in the fixed area.
- * @request_region: function to be called when the number of allocations
- * goes from 0 -> 1
- * @release_region: function to be called when the number of allocations
- * goes from 1 -> 0
- * @setup_region: function to be called upon ion registration
- *
- */
-struct ion_co_heap_pdata {
- int adjacent_mem_id;
- unsigned int align;
- int mem_is_fmem;
- enum ion_fixed_position fixed_position;
- int (*request_region)(void *);
- int (*release_region)(void *);
- void *(*setup_region)(void);
-};
-
-/**
* struct ion_platform_data - array of platform heaps passed from board file
* @has_outer_cache: set to 1 if outer cache is used, 0 otherwise.
* @nr: number of structures in the array
@@ -426,6 +282,7 @@
* address space will be mapped to a dummy buffer.
* @iova - pointer to store the iova address
* @buffer_size - pointer to store the size of the buffer
+ * @flags - flags for options to map
* @iommu_flags - flags specific to the iommu.
*
* Maps the handle into the iova space specified via domain number. Iova
@@ -500,50 +357,6 @@
void *data);
/**
- * msm_ion_secure_heap - secure a heap. Wrapper around ion_secure_heap.
- *
- * @heap_id - heap id to secure.
- *
- * Secure a heap
- * Returns 0 on success
- */
-int msm_ion_secure_heap(int heap_id);
-
-/**
- * msm_ion_unsecure_heap - unsecure a heap. Wrapper around ion_unsecure_heap.
- *
- * @heap_id - heap id to secure.
- *
- * Un-secure a heap
- * Returns 0 on success
- */
-int msm_ion_unsecure_heap(int heap_id);
-
-/**
- * msm_ion_secure_heap_2_0 - secure a heap using 2.0 APIs
- * Wrapper around ion_secure_heap.
- *
- * @heap_id - heap id to secure.
- * @usage - usage hint to TZ
- *
- * Secure a heap
- * Returns 0 on success
- */
-int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage);
-
-/**
- * msm_ion_unsecure_heap - unsecure a heap secured with 3.0 APIs.
- * Wrapper around ion_unsecure_heap.
- *
- * @heap_id - heap id to secure.
- * @usage - usage hint to TZ
- *
- * Un-secure a heap
- * Returns 0 on success
- */
-int msm_ion_unsecure_heap_2_0(int heap_id, enum cp_mem_usage usage);
-
-/**
* msm_ion_do_cache_op - do cache operations.
*
* @client - pointer to ION client.
@@ -660,28 +473,6 @@
return -ENODEV;
}
-static inline int msm_ion_secure_heap(int heap_id)
-{
- return -ENODEV;
-
-}
-
-static inline int msm_ion_unsecure_heap(int heap_id)
-{
- return -ENODEV;
-}
-
-static inline int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage)
-{
- return -ENODEV;
-}
-
-static inline int msm_ion_unsecure_heap_2_0(int heap_id,
- enum cp_mem_usage usage)
-{
- return -ENODEV;
-}
-
static inline int msm_ion_do_cache_op(struct ion_client *client,
struct ion_handle *handle, void *vaddr,
unsigned long len, unsigned int cmd)
@@ -754,41 +545,6 @@
unsigned int cmd;
unsigned long arg;
};
-
-
-/* struct ion_flush_data - data passed to ion for flushing caches
- *
- * @handle: handle with data to flush
- * @fd: fd to flush
- * @vaddr: userspace virtual address mapped with mmap
- * @offset: offset into the handle to flush
- * @length: length of handle to flush
- *
- * Performs cache operations on the handle. If p is the start address
- * of the handle, p + offset through p + offset + length will have
- * the cache operations performed
- */
-struct ion_flush_data {
- struct ion_handle *handle;
- int fd;
- void *vaddr;
- unsigned int offset;
- unsigned int length;
-};
-
-/* struct ion_flag_data - information about flags for this buffer
- *
- * @handle: handle to get flags from
- * @flags: flags of this handle
- *
- * Takes handle as an input and outputs the flags from the handle
- * in the flag field.
- */
-struct ion_flag_data {
- struct ion_handle *handle;
- unsigned long flags;
-};
-
#define ION_IOC_MAGIC 'I'
/**
@@ -846,34 +602,4 @@
#define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
-/**
- * DOC: ION_IOC_CLEAN_CACHES - clean the caches
- *
- * Clean the caches of the handle specified.
- */
-#define ION_IOC_CLEAN_CACHES _IOWR(ION_IOC_MAGIC, 20, \
- struct ion_flush_data)
-/**
- * DOC: ION_MSM_IOC_INV_CACHES - invalidate the caches
- *
- * Invalidate the caches of the handle specified.
- */
-#define ION_IOC_INV_CACHES _IOWR(ION_IOC_MAGIC, 21, \
- struct ion_flush_data)
-/**
- * DOC: ION_MSM_IOC_CLEAN_CACHES - clean and invalidate the caches
- *
- * Clean and invalidate the caches of the handle specified.
- */
-#define ION_IOC_CLEAN_INV_CACHES _IOWR(ION_IOC_MAGIC, 22, \
- struct ion_flush_data)
-
-/**
- * DOC: ION_IOC_GET_FLAGS - get the flags of the handle
- *
- * Gets the flags of the current handle which indicate cachability,
- * secure state etc.
- */
-#define ION_IOC_GET_FLAGS _IOWR(ION_IOC_MAGIC, 23, \
- struct ion_flag_data)
#endif /* _LINUX_ION_H */
diff --git a/include/linux/msm_ion.h b/include/linux/msm_ion.h
index e7959d1..21000f9 100644
--- a/include/linux/msm_ion.h
+++ b/include/linux/msm_ion.h
@@ -18,4 +18,294 @@
#include <linux/ion.h>
+enum msm_ion_heap_types {
+ ION_HEAP_TYPE_MSM_START = ION_HEAP_TYPE_CUSTOM + 1,
+ ION_HEAP_TYPE_IOMMU = ION_HEAP_TYPE_MSM_START,
+ ION_HEAP_TYPE_CP,
+};
+
+/**
+ * These are the only ids that should be used for Ion heap ids.
+ * The ids listed are the order in which allocation will be attempted
+ * if specified. Don't swap the order of heap ids unless you know what
+ * you are doing!
+ * Id's are spaced by purpose to allow new Id's to be inserted in-between (for
+ * possible fallbacks)
+ */
+
+enum ion_heap_ids {
+ INVALID_HEAP_ID = -1,
+ ION_CP_MM_HEAP_ID = 8,
+ ION_CP_MFC_HEAP_ID = 12,
+ ION_CP_WB_HEAP_ID = 16, /* 8660 only */
+ ION_CAMERA_HEAP_ID = 20, /* 8660 only */
+ ION_SF_HEAP_ID = 24,
+ ION_IOMMU_HEAP_ID = 25,
+ ION_QSECOM_HEAP_ID = 27,
+ ION_AUDIO_HEAP_ID = 28,
+
+ ION_MM_FIRMWARE_HEAP_ID = 29,
+ ION_SYSTEM_HEAP_ID = 30,
+
+ ION_HEAP_ID_RESERVED = 31 /** Bit reserved for ION_SECURE flag */
+};
+
+enum ion_fixed_position {
+ NOT_FIXED,
+ FIXED_LOW,
+ FIXED_MIDDLE,
+ FIXED_HIGH,
+};
+
+enum cp_mem_usage {
+ VIDEO_BITSTREAM = 0x1,
+ VIDEO_PIXEL = 0x2,
+ VIDEO_NONPIXEL = 0x3,
+ MAX_USAGE = 0x4,
+ UNKNOWN = 0x7FFFFFFF,
+};
+
+#define ION_HEAP_CP_MASK (1 << ION_HEAP_TYPE_CP)
+
+/**
+ * Flag to use when allocating to indicate that a heap is secure.
+ */
+#define ION_SECURE (1 << ION_HEAP_ID_RESERVED)
+
+/**
+ * Macro should be used with ion_heap_ids defined above.
+ */
+#define ION_HEAP(bit) (1 << (bit))
+
+#define ION_VMALLOC_HEAP_NAME "vmalloc"
+#define ION_AUDIO_HEAP_NAME "audio"
+#define ION_SF_HEAP_NAME "sf"
+#define ION_MM_HEAP_NAME "mm"
+#define ION_CAMERA_HEAP_NAME "camera_preview"
+#define ION_IOMMU_HEAP_NAME "iommu"
+#define ION_MFC_HEAP_NAME "mfc"
+#define ION_WB_HEAP_NAME "wb"
+#define ION_MM_FIRMWARE_HEAP_NAME "mm_fw"
+#define ION_QSECOM_HEAP_NAME "qsecom"
+#define ION_FMEM_HEAP_NAME "fmem"
+
+#define ION_SET_CACHED(__cache) (__cache | ION_FLAG_CACHED)
+#define ION_SET_UNCACHED(__cache) (__cache & ~ION_FLAG_CACHED)
+
+#define ION_IS_CACHED(__flags) ((__flags) & ION_FLAG_CACHED)
+
+#ifdef __KERNEL__
+
+/*
+ * This flag allows clients when mapping into the IOMMU to specify to
+ * defer un-mapping from the IOMMU until the buffer memory is freed.
+ */
+#define ION_IOMMU_UNMAP_DELAYED 1
+
+/**
+ * struct ion_cp_heap_pdata - defines a content protection heap in the given
+ * platform
+ * @permission_type: Memory ID used to identify the memory to TZ
+ * @align: Alignment requirement for the memory
+ * @secure_base: Base address for securing the heap.
+ * Note: This might be different from actual base address
+ * of this heap in the case of a shared heap.
+ * @secure_size: Memory size for securing the heap.
+ * Note: This might be different from actual size
+ * of this heap in the case of a shared heap.
+ * @reusable Flag indicating whether this heap is reusable of not.
+ * (see FMEM)
+ * @mem_is_fmem Flag indicating whether this memory is coming from fmem
+ * or not.
+ * @fixed_position If nonzero, position in the fixed area.
+ * @virt_addr: Virtual address used when using fmem.
+ * @iommu_map_all: Indicates whether we should map whole heap into IOMMU.
+ * @iommu_2x_map_domain: Indicates the domain to use for overmapping.
+ * @request_region: function to be called when the number of allocations
+ * goes from 0 -> 1
+ * @release_region: function to be called when the number of allocations
+ * goes from 1 -> 0
+ * @setup_region: function to be called upon ion registration
+ * @memory_type:Memory type used for the heap
+ *
+ */
+struct ion_cp_heap_pdata {
+ enum ion_permission_type permission_type;
+ unsigned int align;
+ ion_phys_addr_t secure_base; /* Base addr used when heap is shared */
+ size_t secure_size; /* Size used for securing heap when heap is shared*/
+ int reusable;
+ int mem_is_fmem;
+ enum ion_fixed_position fixed_position;
+ int iommu_map_all;
+ int iommu_2x_map_domain;
+ ion_virt_addr_t *virt_addr;
+ int (*request_region)(void *);
+ int (*release_region)(void *);
+ void *(*setup_region)(void);
+ enum ion_memory_types memory_type;
+};
+
+/**
+ * struct ion_co_heap_pdata - defines a carveout heap in the given platform
+ * @adjacent_mem_id: Id of heap that this heap must be adjacent to.
+ * @align: Alignment requirement for the memory
+ * @mem_is_fmem Flag indicating whether this memory is coming from fmem
+ * or not.
+ * @fixed_position If nonzero, position in the fixed area.
+ * @request_region: function to be called when the number of allocations
+ * goes from 0 -> 1
+ * @release_region: function to be called when the number of allocations
+ * goes from 1 -> 0
+ * @setup_region: function to be called upon ion registration
+ * @memory_type:Memory type used for the heap
+ *
+ */
+struct ion_co_heap_pdata {
+ int adjacent_mem_id;
+ unsigned int align;
+ int mem_is_fmem;
+ enum ion_fixed_position fixed_position;
+ int (*request_region)(void *);
+ int (*release_region)(void *);
+ void *(*setup_region)(void);
+ enum ion_memory_types memory_type;
+};
+
+#ifdef CONFIG_ION
+/**
+ * msm_ion_secure_heap - secure a heap. Wrapper around ion_secure_heap.
+ *
+ * @heap_id - heap id to secure.
+ *
+ * Secure a heap
+ * Returns 0 on success
+ */
+int msm_ion_secure_heap(int heap_id);
+
+/**
+ * msm_ion_unsecure_heap - unsecure a heap. Wrapper around ion_unsecure_heap.
+ *
+ * @heap_id - heap id to secure.
+ *
+ * Un-secure a heap
+ * Returns 0 on success
+ */
+int msm_ion_unsecure_heap(int heap_id);
+
+/**
+ * msm_ion_secure_heap_2_0 - secure a heap using 2.0 APIs
+ * Wrapper around ion_secure_heap.
+ *
+ * @heap_id - heap id to secure.
+ * @usage - usage hint to TZ
+ *
+ * Secure a heap
+ * Returns 0 on success
+ */
+int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage);
+
+/**
+ * msm_ion_unsecure_heap - unsecure a heap secured with 3.0 APIs.
+ * Wrapper around ion_unsecure_heap.
+ *
+ * @heap_id - heap id to secure.
+ * @usage - usage hint to TZ
+ *
+ * Un-secure a heap
+ * Returns 0 on success
+ */
+int msm_ion_unsecure_heap_2_0(int heap_id, enum cp_mem_usage usage);
+#else
+static inline int msm_ion_secure_heap(int heap_id)
+{
+ return -ENODEV;
+
+}
+
+static inline int msm_ion_unsecure_heap(int heap_id)
+{
+ return -ENODEV;
+}
+
+static inline int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage)
+{
+ return -ENODEV;
+}
+
+static inline int msm_ion_unsecure_heap_2_0(int heap_id,
+ enum cp_mem_usage usage)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_ION */
+
+#endif /* __KERNEL */
+
+/* struct ion_flush_data - data passed to ion for flushing caches
+ *
+ * @handle: handle with data to flush
+ * @fd: fd to flush
+ * @vaddr: userspace virtual address mapped with mmap
+ * @offset: offset into the handle to flush
+ * @length: length of handle to flush
+ *
+ * Performs cache operations on the handle. If p is the start address
+ * of the handle, p + offset through p + offset + length will have
+ * the cache operations performed
+ */
+struct ion_flush_data {
+ struct ion_handle *handle;
+ int fd;
+ void *vaddr;
+ unsigned int offset;
+ unsigned int length;
+};
+
+/* struct ion_flag_data - information about flags for this buffer
+ *
+ * @handle: handle to get flags from
+ * @flags: flags of this handle
+ *
+ * Takes handle as an input and outputs the flags from the handle
+ * in the flag field.
+ */
+struct ion_flag_data {
+ struct ion_handle *handle;
+ unsigned long flags;
+};
+
+#define ION_IOC_MSM_MAGIC 'M'
+
+/**
+ * DOC: ION_IOC_CLEAN_CACHES - clean the caches
+ *
+ * Clean the caches of the handle specified.
+ */
+#define ION_IOC_CLEAN_CACHES _IOWR(ION_IOC_MSM_MAGIC, 0, \
+ struct ion_flush_data)
+/**
+ * DOC: ION_IOC_INV_CACHES - invalidate the caches
+ *
+ * Invalidate the caches of the handle specified.
+ */
+#define ION_IOC_INV_CACHES _IOWR(ION_IOC_MSM_MAGIC, 1, \
+ struct ion_flush_data)
+/**
+ * DOC: ION_IOC_CLEAN_INV_CACHES - clean and invalidate the caches
+ *
+ * Clean and invalidate the caches of the handle specified.
+ */
+#define ION_IOC_CLEAN_INV_CACHES _IOWR(ION_IOC_MSM_MAGIC, 2, \
+ struct ion_flush_data)
+
+/**
+ * DOC: ION_IOC_GET_FLAGS - get the flags of the handle
+ *
+ * Gets the flags of the current handle which indicate cachability,
+ * secure state etc.
+ */
+#define ION_IOC_GET_FLAGS _IOWR(ION_IOC_MSM_MAGIC, 3, \
+ struct ion_flag_data)
+
#endif