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[oasl]: move ion allocator to new directory for linux reuse

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git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@808 6e48237b-75ef-9749-8fc9-41990f28c85a
This commit is contained in:
ChenHengming
2016-05-24 08:41:18 +00:00
parent 251bfc81fa
commit d4b871ef15
4 changed files with 383 additions and 327 deletions
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328
osal/android/os_allocator.c
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@@ -23,6 +23,7 @@
#include "os_mem.h"
#include "os_allocator.h"
#include "allocator_ion.h"
#include "mpp_mem.h"
#include "mpp_log.h"
@@ -92,333 +93,6 @@ static os_allocator allocator_normal = {
os_allocator_normal_close,
};
static RK_U32 ion_debug = 0;
#define ION_FUNCTION (0x00000001)
#define ION_DEVICE (0x00000002)
#define ION_CLINET (0x00000004)
#define ION_IOCTL (0x00000008)
#define ION_DETECT_IOMMU_DISABLE (0x0) /* use ION_HEAP_TYPE_DMA */
#define ION_DETECT_IOMMU_ENABLE (0x1) /* use ION_HEAP_TYPE_SYSTEM */
#define ION_DETECT_NO_DTS (0x2) /* use ION_HEAP_TYPE_CARVEOUT */
#define ion_dbg(flag, fmt, ...) _mpp_dbg(ion_debug, flag, fmt, ## __VA_ARGS__)
static int ion_ioctl(int fd, int req, void *arg)
{
int ret = ioctl(fd, req, arg);
if (ret < 0) {
mpp_err("ion_ioctl %x failed with code %d: %s\n", req,
ret, strerror(errno));
return -errno;
}
return ret;
}
static int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
unsigned int flags, ion_user_handle_t *handle)
{
int ret;
struct ion_allocation_data data = {
.len = len,
.align = align,
.heap_id_mask = heap_mask,
.flags = flags,
};
if (handle == NULL)
return -EINVAL;
ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);
if (ret < 0)
return ret;
*handle = data.handle;
return ret;
}
static int ion_free(int fd, ion_user_handle_t handle)
{
struct ion_handle_data data = {
.handle = handle,
};
return ion_ioctl(fd, ION_IOC_FREE, &data);
}
static int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,
int flags, off_t offset, unsigned char **ptr, int *map_fd)
{
int ret;
struct ion_fd_data data = {
.handle = handle,
};
if (map_fd == NULL)
return -EINVAL;
if (ptr == NULL)
return -EINVAL;
ret = ion_ioctl(fd, ION_IOC_MAP, &data);
if (ret < 0)
return ret;
*map_fd = data.fd;
if (*map_fd < 0) {
mpp_err("map ioctl returned negative fd\n");
return -EINVAL;
}
*ptr = mmap(NULL, length, prot, flags, *map_fd, offset);
if (*ptr == MAP_FAILED) {
mpp_err("mmap failed: %s\n", strerror(errno));
return -errno;
}
return ret;
}
#include <dirent.h>
static const char *search_name = NULL;
int _compare_name(const struct dirent *dir)
{
if (search_name && strstr(dir->d_name, search_name))
return 1;
return 0;
}
/*
* directory search function:
* search directory with dir_name on path.
* if found match dir append name on path and return
*
* return 0 for failure
* return positive value for length of new path
*/
RK_S32 find_dir_in_path(char *path, const char *dir_name, size_t max_length)
{
struct dirent **dir;
RK_S32 path_len = strnlen(path, max_length);
RK_S32 new_path_len = 0;
RK_S32 n;
search_name = dir_name;
n = scandir(path, &dir, _compare_name, alphasort);
if (n < 0) {
mpp_err("scan %s for %s failed\n", path, dir_name);
} else {
while (n > 1) {
free(dir[--n]);
}
new_path_len = path_len;
new_path_len += snprintf(path + path_len, max_length - path_len - 1,
"/%s", dir[0]->d_name);
free(dir[0]);
free(dir);
}
search_name = NULL;
return new_path_len;
}
RK_S32 check_sysfs_iommu()
{
RK_S32 ret = ION_DETECT_IOMMU_DISABLE;
char path[256];
snprintf(path, sizeof(path), "/proc/device-tree");
if (find_dir_in_path(path, "vpu_service", sizeof(path))) {
if (find_dir_in_path(path, "iommu_enabled", sizeof(path))) {
FILE *iommu_fp = fopen(path, "rb");
if (iommu_fp) {
RK_U32 iommu_enabled = 0;
fread(&iommu_enabled, sizeof(RK_U32), 1, iommu_fp);
mpp_log("vpu_service iommu_enabled %d\n", (iommu_enabled > 0));
fclose(iommu_fp);
if (iommu_enabled)
ret = ION_DETECT_IOMMU_ENABLE;
}
} else {
mpp_err("can not find dts for iommu_enabled\n");
}
} else {
mpp_err("can not find dts for vpu_service\n");
ret = ION_DETECT_NO_DTS;
}
return ret;
}
typedef struct {
RK_U32 alignment;
RK_S32 ion_device;
} allocator_ctx_ion;
#define VPU_IOC_MAGIC 'l'
#define VPU_IOC_PROBE_IOMMU_STATUS _IOR(VPU_IOC_MAGIC, 5, unsigned long)
#define VPU_IOC_PROBE_HEAP_STATUS _IOR(VPU_IOC_MAGIC, 6, unsigned long)
const char *dev_ion = "/dev/ion";
const char *dev_vpu = "/dev/vpu_service";
static RK_S32 ion_heap_id = -1;
static RK_U32 ion_heap_mask = ION_HEAP_SYSTEM_MASK;
MPP_RET os_allocator_ion_open(void **ctx, size_t alignment)
{
RK_S32 fd;
allocator_ctx_ion *p;
if (NULL == ctx) {
mpp_err("os_allocator_open Android do not accept NULL input\n");
return MPP_ERR_NULL_PTR;
}
*ctx = NULL;
fd = open(dev_ion, O_RDWR);
if (fd < 0) {
mpp_err("open %s failed!\n", dev_ion);
return MPP_ERR_UNKNOW;
}
ion_dbg(ION_DEVICE, "open ion dev fd %d\n", fd);
p = mpp_malloc(allocator_ctx_ion, 1);
if (NULL == p) {
close(fd);
mpp_err("os_allocator_open Android failed to allocate context\n");
return MPP_ERR_MALLOC;
} else {
/*
* do heap id detection here:
* if there is no vpu_service use default ION_HEAP_TYPE_SYSTEM_CONTIG
* if there is vpu_service then check the iommu_enable status
*/
if (ion_heap_id < 0) {
int detect_result = check_sysfs_iommu();
const char *heap_name = NULL;
switch (detect_result) {
case ION_DETECT_IOMMU_DISABLE : {
ion_heap_mask = (1 << ION_HEAP_TYPE_DMA);
ion_heap_id = ION_HEAP_TYPE_DMA;
heap_name = "ION_HEAP_TYPE_DMA";
} break;
case ION_DETECT_IOMMU_ENABLE : {
ion_heap_mask = (1 << ION_HEAP_TYPE_SYSTEM);
ion_heap_id = ION_HEAP_TYPE_SYSTEM;
heap_name = "ION_HEAP_TYPE_SYSTEM";
} break;
case ION_DETECT_NO_DTS : {
ion_heap_mask = (1 << ION_HEAP_TYPE_CARVEOUT);
ion_heap_id = ION_HEAP_TYPE_CARVEOUT;
heap_name = "ION_HEAP_TYPE_CARVEOUT";
} break;
default : {
mpp_err("invalid detect result %d\n", detect_result);
ion_heap_mask = (1 << ION_HEAP_TYPE_DMA);
ion_heap_id = ION_HEAP_TYPE_DMA;
heap_name = "ION_HEAP_TYPE_DMA";
} break;
}
mpp_log("using ion heap %s\n", heap_name);
}
p->alignment = alignment;
p->ion_device = fd;
*ctx = p;
}
return MPP_OK;
}
MPP_RET os_allocator_ion_alloc(void *ctx, MppBufferInfo *info)
{
MPP_RET ret = MPP_OK;
allocator_ctx_ion *p = NULL;
if (NULL == ctx) {
mpp_err("os_allocator_close Android do not accept NULL input\n");
return MPP_ERR_NULL_PTR;
}
p = (allocator_ctx_ion *)ctx;
ret = ion_alloc(p->ion_device, info->size, p->alignment,
ion_heap_mask, 0,
(ion_user_handle_t *)&info->hnd);
if (ret) {
mpp_err("os_allocator_ion_alloc ion_alloc failed ret %d\n", ret);
return ret;
}
ret = ion_map(p->ion_device, (ion_user_handle_t)info->hnd, info->size,
PROT_READ | PROT_WRITE, MAP_SHARED, (off_t)0,
(unsigned char**)&info->ptr, &info->fd);
if (ret) {
mpp_err("os_allocator_ion_alloc ion_map failed ret %d\n", ret);
return ret;
}
return ret;
}
MPP_RET os_allocator_ion_import(void *ctx, MppBufferInfo *data)
{
(void)ctx;
// NOTE: do not use the original buffer fd,
// use dup fd to avoid unexpected external fd close
data->fd = dup(data->fd);
data->ptr = mmap(NULL, data->size, PROT_READ | PROT_WRITE, MAP_SHARED, data->fd, 0);
return (data->ptr) ? (MPP_OK) : (MPP_NOK);
}
MPP_RET os_allocator_ion_release(void *ctx, MppBufferInfo *data)
{
(void)ctx;
munmap(data->ptr, data->size);
close(data->fd);
return MPP_OK;
}
MPP_RET os_allocator_ion_free(void *ctx, MppBufferInfo *data)
{
allocator_ctx_ion *p = NULL;
if (NULL == ctx) {
mpp_err("os_allocator_close Android do not accept NULL input\n");
return MPP_ERR_NULL_PTR;
}
p = (allocator_ctx_ion *)ctx;
munmap(data->ptr, data->size);
close(data->fd);
ion_free(p->ion_device, (ion_user_handle_t)data->hnd);
return MPP_OK;
}
MPP_RET os_allocator_ion_close(void *ctx)
{
int ret;
allocator_ctx_ion *p;
if (NULL == ctx) {
mpp_err("os_allocator_close Android do not accept NULL input\n");
return MPP_ERR_NULL_PTR;
}
p = (allocator_ctx_ion *)ctx;
ret = close(p->ion_device);
mpp_free(p);
if (ret < 0)
return (MPP_RET) - errno;
return MPP_OK;
}
static os_allocator allocator_ion = {
os_allocator_ion_open,
os_allocator_ion_alloc,
os_allocator_ion_free,
os_allocator_ion_import,
os_allocator_ion_release,
os_allocator_ion_close,
};
MPP_RET os_allocator_get(os_allocator *api, MppBufferType type)
{
MPP_RET ret = MPP_OK;