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Diffstat (limited to 'original-kernel-headers/linux/msm_ion.h')
| -rw-r--r-- | original-kernel-headers/linux/msm_ion.h | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/original-kernel-headers/linux/msm_ion.h b/original-kernel-headers/linux/msm_ion.h new file mode 100644 index 0000000..9c010a6 --- /dev/null +++ b/original-kernel-headers/linux/msm_ion.h @@ -0,0 +1,181 @@ +#ifndef _UAPI_MSM_ION_H +#define _UAPI_MSM_ION_H + +#include "ion.h" + +enum msm_ion_heap_types { + ION_HEAP_TYPE_MSM_START = ION_HEAP_TYPE_CUSTOM + 1, + ION_HEAP_TYPE_SECURE_DMA = ION_HEAP_TYPE_MSM_START, + ION_HEAP_TYPE_REMOVED, + /* + * if you add a heap type here you should also add it to + * heap_types_info[] in msm_ion.c + */ +}; + +/** + * 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_SYSTEM_CONTIG_HEAP_ID = 21, + ION_ADSP_HEAP_ID = 22, + ION_PIL1_HEAP_ID = 23, /* Currently used for other PIL images */ + ION_SF_HEAP_ID = 24, + ION_SYSTEM_HEAP_ID = 25, + ION_PIL2_HEAP_ID = 26, /* Currently used for modem firmware images */ + ION_QSECOM_HEAP_ID = 27, + ION_AUDIO_HEAP_ID = 28, + + ION_MM_FIRMWARE_HEAP_ID = 29, + + ION_HEAP_ID_RESERVED = 31 /** Bit reserved for ION_FLAG_SECURE flag */ +}; + +/* + * The IOMMU heap is deprecated! Here are some aliases for backwards + * compatibility: + */ +#define ION_IOMMU_HEAP_ID ION_SYSTEM_HEAP_ID +#define ION_HEAP_TYPE_IOMMU ION_HEAP_TYPE_SYSTEM + +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, + DISPLAY_SECURE_CP_USAGE = 0x4, + CAMERA_SECURE_CP_USAGE = 0x5, + MAX_USAGE = 0x6, + UNKNOWN = 0x7FFFFFFF, +}; + +/** + * Flag to allow non continguous allocation of memory from secure + * heap + */ +#define ION_FLAG_ALLOW_NON_CONTIG (1 << 24) + +/** + * Flag to use when allocating to indicate that a heap is secure. + */ +#define ION_FLAG_SECURE (1 << ION_HEAP_ID_RESERVED) + +/** + * Flag for clients to force contiguous memort allocation + * + * Use of this flag is carefully monitored! + */ +#define ION_FLAG_FORCE_CONTIGUOUS (1 << 30) + +/* + * Used in conjunction with heap which pool memory to force an allocation + * to come from the page allocator directly instead of from the pool allocation + */ +#define ION_FLAG_POOL_FORCE_ALLOC (1 << 16) + +/** +* Deprecated! Please use the corresponding ION_FLAG_* +*/ +#define ION_SECURE ION_FLAG_SECURE +#define ION_FORCE_CONTIGUOUS ION_FLAG_FORCE_CONTIGUOUS + +/** + * Macro should be used with ion_heap_ids defined above. + */ +#define ION_HEAP(bit) (1 << (bit)) + +#define ION_ADSP_HEAP_NAME "adsp" +#define ION_SYSTEM_HEAP_NAME "system" +#define ION_VMALLOC_HEAP_NAME ION_SYSTEM_HEAP_NAME +#define ION_KMALLOC_HEAP_NAME "kmalloc" +#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_PIL1_HEAP_NAME "pil_1" +#define ION_PIL2_HEAP_NAME "pil_2" +#define ION_QSECOM_HEAP_NAME "qsecom" + +#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) + +/* 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 { + ion_user_handle_t handle; + int fd; + void *vaddr; + unsigned int offset; + unsigned int length; +}; + + +struct ion_prefetch_data { + int heap_id; + unsigned long len; +}; + +#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) + +#define ION_IOC_PREFETCH _IOWR(ION_IOC_MSM_MAGIC, 3, \ + struct ion_prefetch_data) + +#define ION_IOC_DRAIN _IOWR(ION_IOC_MSM_MAGIC, 4, \ + struct ion_prefetch_data) + +#endif |