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[runtime]: Add more runtime detection

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As we found that simple ion / drm device detectioin can not cover all the
case. For example on some 3368 platform kernel provide both ion and drm
device. We have better to use allocator chosen in dts.

But later kernel patch from Randy will bring unified dma-fd translation in
kernel then this detection will be removed.

Change-Id: I2746142d1c3d0f36791bacaadb231dc2001a5aa7
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
This commit is contained in:
Herman Chen
2017-12-22 15:56:42 +08:00
parent 4231398479
commit 7b7b509847
4 changed files with 120 additions and 1 deletions
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78
osal/mpp_runtime.cpp
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@@ -20,8 +20,34 @@
#include <unistd.h>
#include "mpp_log.h"
#include "mpp_common.h"
#include "mpp_runtime.h"
#define MAX_DTS_PATH_LEN 256
static const char *mpp_dts_base = "/proc/device-tree/";
static const char *mpp_vpu_names[] = {
"vpu_service",
"vpu-service",
"vpu",
//"hevc_service",
//"hevc-service",
//"rkvdec",
//"rkvenc",
//"vpu_combo",
};
static const char *mpp_vpu_address[] = {
"", /* old kernel */
"@10108000", /* rk3036 */
"@20020000", /* rk322x */
"@30000000", /* rv1108 */
"@ff9a0000", /* rk3288/3366 */
"@ff350000", /* rk322xh/3328 */
"@ff650000", /* rk3399 */
};
class MppRuntimeService
{
private:
@@ -72,6 +98,58 @@ MppRuntimeService::MppRuntimeService()
mpp_log("found drm allocator\n");
close(fd);
}
// If both ion and drm is enabled detect allocator in dts to choose one
// TODO: When unify dma fd kernel is completed this part will be removed.
if (allocator_valid[MPP_BUFFER_TYPE_ION] &&
allocator_valid[MPP_BUFFER_TYPE_DRM]) {
/* Detect hardware buffer type is ion or drm */
RK_U32 i, j;
char path[MAX_DTS_PATH_LEN];
RK_U32 path_len = MAX_DTS_PATH_LEN;
RK_U32 dts_path_len = snprintf(path, path_len, "%s", mpp_dts_base);
char *p = path + dts_path_len;
RK_U32 allocator_found = 0;
path_len -= dts_path_len;
for (i = 0; i < MPP_ARRAY_ELEMS(mpp_vpu_names); i++) {
for (j = 0; j < MPP_ARRAY_ELEMS(mpp_vpu_address); j++) {
RK_U32 dev_path_len = snprintf(p, path_len, "%s%s",
mpp_vpu_names[i], mpp_vpu_address[j]);
int f_ok = access(path, F_OK);
if (f_ok == 0) {
snprintf(p + dev_path_len, path_len - dev_path_len, "/%s", "allocator");
f_ok = access(path, F_OK);
if (f_ok == 0) {
RK_S32 val = 0;
FILE *fp = fopen(path, "rb");
if (fp) {
fread(&val, 1, 4, fp);
// zero for ion non-zero for drm ->
// zero - disable drm
// non-zero - disable ion
if (val == 0) {
allocator_valid[MPP_BUFFER_TYPE_DRM] = 0;
mpp_log("found ion allocator in dts\n");
} else {
allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
mpp_log("found drm allocator in dts\n");
}
allocator_found = 1;
}
}
}
if (allocator_found)
break;
}
if (allocator_found)
break;
}
if (!allocator_found)
mpp_log("Can NOT found allocator in dts, enable both ion and drm\n");
}
}
RK_U32 mpp_rt_allcator_is_valid(MppBufferType type)