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Issue created by yanyan jiang@jiangyy0202

Android q: failed to import prime fd

Replace the hwcomposer.drm.so to hwcomposer.xx.so. The android q system can not work.dumpsys SurfaceFlinger have the only plane bootanimation. The logcat has:

01-01 08:03:14.464  2223  2270 E jyyhwc-drm-two: jyy ValidateDisplay
01-01 08:03:14.464  2223  2270 E jyyhwc-drm-two: jyy CreateComposition
01-01 08:03:14.464  2223  2270 E jyyhwc-drm-two: jyy PopulateDrmLayer
01-01 08:03:14.464  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 106] handle 0xb556e300
01-01 08:03:14.465  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 121] handle 0xb556e300  yuv width 1920 height 1080 format 43 stride 7680 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 34 ret1 0
01-01 08:03:14.465  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 126] handle 0xb556e300 prime fd 33 width 36 height 37 format 4294967295 stride -1 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 34
01-01 08:03:14.469  2223  2270 E jyhwc-platform-drm-generic: failed to import prime fd 33 ret=-1
01-01 08:03:14.469  2223  2270 E jyyhwc-drm-two: Failed to import layer, ret=-1
01-01 08:03:14.469  2223  2270 E jyyhwc-drm-two: jyy GetChangedCompositionTypes
01-01 08:03:14.469  2223  2270 E jyyhwc-drm-two: jyy GetChangedCompositionTypes
01-01 08:03:14.469  2223  2270 E jyyhwc-drm-two: jyy GetDisplayRequests
01-01 08:03:14.469  2223  2270 E jyyhwc-drm-two: jyy GetDisplayRequests
01-01 08:03:14.470  5184  5184 I PackageBackwardCompatibility: Could not find android.content.pm.AndroidTestBaseUpdater, ignoring
01-01 08:03:14.470  5186  5186 I CameraProviderManager: Connecting to new camera provider: external/0, isRemote? 1
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy AcceptDisplayChanges
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy SetClientTarget
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy SetLayerDataspace
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy PresentDisplay
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy CreateComposition
01-01 08:03:14.470  2223  2270 E jyyhwc-drm-two: jyy PopulateDrmLayer
01-01 08:03:14.470  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 106] handle 0xb556e480
01-01 08:03:14.471  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 121] handle 0xb556e480  yuv width 1920 height 1080 format 5 stride 7680 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 34 ret1 0
01-01 08:03:14.471  2223  2270 E jyhwc-platform-drm-generic: jyy [ImportBuffer 126] handle 0xb556e480 prime fd 38 width 41 height 42 format 4294967295 stride -1 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 34
01-01 08:03:14.471  2223  2270 E jyhwc-platform-drm-generic: Cannot convert hal format to drm format 4294967295
01-01 08:03:14.471  2223  2270 E jyhwc-platform-drm-generic: Cannot convert hal format 4294967274 to bpp (returning 32)
01-01 08:03:14.471  2223  2270 E jyhwc-platform-drm-generic: could not create drm fb -22
01-01 08:03:14.471  2223  2270 E jyyhwc-drm-two: Failed to import layer, ret=-22
01-01 08:03:14.471  2120  2120 E HWComposer: presentAndGetReleaseFences: present failed for display 0: NoResources (6)

code is : the info in gr_handle in log that seem not correct. I do not know how to debug this error.

int DrmGenericImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
105    gralloc_handle_t *gr_handle = gralloc_handle(handle);
106    if (!gr_handle)
107      return -EINVAL;
108  
109    uint32_t gem_handle;
110    int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->prime_fd, &gem_handle);
111    if (ret) {
112      ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret);
113      return ret;
114    }

I confuse that
gralloc_handle_t *gr_handle = gralloc_handle(handle);

how can buffer_handle_t translate to gralloc_handle_t. where the prime fd come from.

struct gralloc_handle_t {
37  	native_handle_t base;
38  
39  	/* dma-buf file descriptor
40  	 * Must be located first since, native_handle_t is allocated
41  	 * using native_handle_create(), which allocates space for
42  	 * sizeof(native_handle_t) + sizeof(int) * (numFds + numInts)
43  	 * numFds = GRALLOC_HANDLE_NUM_FDS
44  	 * numInts = GRALLOC_HANDLE_NUM_INTS
45  	 * Where numFds represents the number of FDs and
46  	 * numInts represents the space needed for the
47  	 * remainder of this struct.
48  	 * And the FDs are expected to be found first following
49  	 * native_handle_t.
50  	 */
51  	int prime_fd;
52  
53  	/* api variables */
54  	uint32_t magic; /* differentiate between allocator impls */
55  	uint32_t version; /* api version */
56  
57  	uint32_t width; /* width of buffer in pixels */
58  	uint32_t height; /* height of buffer in pixels */
59  	uint32_t format; /* pixel format (Android) */
60  	uint32_t usage; /* android libhardware usage flags */
61  
62  	uint32_t stride; /* the stride in bytes */
63  	uint64_t modifier; /* buffer modifiers */
64  
65  	int data_owner; /* owner of data (for validation) */
66  	union {
67  		void *data; /* pointer to struct gralloc_gbm_bo_t */
68  		uint64_t reserved;
69  	} __attribute__((aligned(8)));
70  };

How can I debug this problems? Is gr_handle_t info is wrong? If anyone know how to debugg this problem.Look forward to your reply. Thank you very much.

Edited by yanyan jiang