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[android]: add ion heap detection to android os_allocator

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git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@549 6e48237b-75ef-9749-8fc9-41990f28c85a
This commit is contained in:
ChenHengming
2016-01-27 03:15:47 +00:00
parent 31eb296833
commit 90f94f05ba
1 changed files with 33 additions and 5 deletions
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38
osal/android/os_allocator.c
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@@ -173,9 +173,14 @@ static int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,
typedef struct {
RK_U32 alignment;
RK_S32 ion_device;
RK_U32 heap_id;
} allocator_ctx_ion;
#define VPU_IOC_MAGIC 'l'
#define VPU_IOC_PROBE_IOMMU_STATUS _IOR(VPU_IOC_MAGIC, 5, unsigned long)
const char *dev_ion = "/dev/ion";
const char *dev_vpu = "/dev/vpu_service";
static RK_S32 ion_heap_id = -1;
MPP_RET os_allocator_ion_open(void **ctx, size_t alignment)
{
RK_S32 fd;
@@ -188,9 +193,9 @@ MPP_RET os_allocator_ion_open(void **ctx, size_t alignment)
*ctx = NULL;
fd = open("/dev/ion", O_RDWR);
fd = open(dev_ion, O_RDWR);
if (fd < 0) {
mpp_err("open /dev/ion failed!\n");
mpp_err("open %s failed!\n", dev_ion);
return MPP_ERR_UNKNOW;
}
@@ -202,9 +207,32 @@ MPP_RET os_allocator_ion_open(void **ctx, size_t alignment)
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) {
ion_heap_id = ION_HEAP_TYPE_SYSTEM;
int vpu_fd = open(dev_vpu, O_RDWR);
if (vpu_fd >= 0) {
int iommu_enabled = -2;
int ret = ioctl(vpu_fd, VPU_IOC_PROBE_IOMMU_STATUS, &iommu_enabled);
if (ret) {
iommu_enabled = 0;
mpp_err("can not get iommu status, disable iommu\n");
}
close(vpu_fd);
if (!iommu_enabled) {
ion_heap_id = ION_HEAP_TYPE_DMA;
}
}
mpp_log("using ion heap %s\n", (ion_heap_id == ION_HEAP_TYPE_SYSTEM) ?
("ION_HEAP_TYPE_SYSTEM") : ("ION_HEAP_TYPE_DMA"));
}
p->alignment = alignment;
p->ion_device = fd;
p->heap_id = ION_HEAP_TYPE_SYSTEM_CONTIG; /* ION_HEAP_TYPE_CARVEOUT */
*ctx = p;
}
@@ -223,7 +251,7 @@ MPP_RET os_allocator_ion_alloc(void *ctx, MppBufferInfo *info)
p = (allocator_ctx_ion *)ctx;
ret = ion_alloc(p->ion_device, info->size, p->alignment,
p->heap_id, 0,
(1 << ion_heap_id), 0,
(ion_user_handle_t *)&info->hnd);
if (ret) {
mpp_err("os_allocator_ion_alloc ion_alloc failed ret %d\n", ret);