| Message ID | 20201023125704.4984-1-stanimir.varbanov@linaro.org |
|---|---|
| Headers | show |
| Series | Venus stateful encoder compliance | expand |
Hi Stan, On 2020-11-03 06:46, Fritz Koenig wrote: > On Fri, Oct 23, 2020 at 5:57 AM Stanimir Varbanov > <stanimir.varbanov@linaro.org> wrote: >> >> Redesign the encoder driver to be compliant with stateful encoder >> spec - specifically adds handling of Reset state. >> >> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> >> --- >> drivers/media/platform/qcom/venus/core.h | 10 +- >> drivers/media/platform/qcom/venus/venc.c | 242 >> ++++++++++++++++++----- >> 2 files changed, 197 insertions(+), 55 deletions(-) >> >> diff --git a/drivers/media/platform/qcom/venus/core.h >> b/drivers/media/platform/qcom/venus/core.h >> index 5c4693678e3f..294d5467a6a1 100644 >> --- a/drivers/media/platform/qcom/venus/core.h >> +++ b/drivers/media/platform/qcom/venus/core.h >> @@ -277,11 +277,11 @@ enum venus_dec_state { >> }; >> >> enum venus_enc_state { >> - VENUS_ENC_STATE_DEINIT = 0, >> - VENUS_ENC_STATE_INIT = 1, >> - VENUS_ENC_STATE_ENCODING = 2, >> - VENUS_ENC_STATE_STOPPED = 3, >> - VENUS_ENC_STATE_DRAIN = 4, >> + VENUS_ENC_STATE_INIT = 0, >> + VENUS_ENC_STATE_ENCODING = 1, >> + VENUS_ENC_STATE_STOPPED = 2, >> + VENUS_ENC_STATE_DRAIN = 3, >> + VENUS_ENC_STATE_RESET = 4, >> }; >> >> struct venus_ts_metadata { >> diff --git a/drivers/media/platform/qcom/venus/venc.c >> b/drivers/media/platform/qcom/venus/venc.c >> index c6143b07914c..aa9255ddb0a5 100644 >> --- a/drivers/media/platform/qcom/venus/venc.c >> +++ b/drivers/media/platform/qcom/venus/venc.c >> @@ -565,6 +565,7 @@ static const struct v4l2_ioctl_ops venc_ioctl_ops >> = { >> .vidioc_enum_frameintervals = venc_enum_frameintervals, >> .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, >> .vidioc_unsubscribe_event = v4l2_event_unsubscribe, >> + .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, >> .vidioc_encoder_cmd = venc_encoder_cmd, >> }; >> >> @@ -850,6 +851,69 @@ static int venc_queue_setup(struct vb2_queue *q, >> return ret; >> } >> >> +static void venc_release_session(struct venus_inst *inst) >> +{ >> + struct venus_core *core = inst->core; >> + int ret, abort = 0; >> + >> + mutex_lock(&inst->lock); >> + >> + if (inst->enc_state != VENUS_ENC_STATE_RESET) >> + dev_dbg(core->dev_enc, VDBGH "wrong state!\n"); >> + >> + ret = hfi_session_stop(inst); >> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >> + ret = hfi_session_unload_res(inst); >> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >> + ret = venus_helper_unregister_bufs(inst); >> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >> + ret = venus_helper_intbufs_free(inst); >> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >> + ret = hfi_session_deinit(inst); >> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >> + >> + if (inst->session_error) >> + abort = 1; >> + >> + if (abort) >> + hfi_session_abort(inst); >> + >> + venus_pm_load_scale(inst); > > venus_pm_load_scale depends on inst->clk_data.codec_freq_data being > set up. This occurs in venc_init_session(). I am seeing scenarios > where the encoder is getting setup up, but before it is finished, > teardown occurs. If this teardown occurs before > inst->clk_data.codec_freq_data is initalized, a crash occurs. (also > "wrong state!" is printed out) venus_pm_load_scale(inst) is called here to remove the votes for clock and bus bandwidth. This is not needed for instances which are closed just after moving them to INIT state. I have tried with below state handling and it works well i.e call for venus_pm_load_scale(inst) from state other than the INIT state. - venus_pm_load_scale(inst); + if(inst->enc_state != VENUS_ENC_STATE_INIT) + venus_pm_load_scale(inst); > > [ 106.593198] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000008 > [ 106.603916] Mem abort info: > [ 106.608470] ESR = 0x96000006 > [ 106.613802] EC = 0x25: DABT (current EL), IL = 32 bits > [ 106.619426] SET = 0, FnV = 0 > [ 106.622619] EA = 0, S1PTW = 0 > [ 106.625862] Data abort info: > [ 106.628835] ISV = 0, ISS = 0x00000006 > [ 106.632785] CM = 0, WnR = 0 > [ 106.635850] user pgtable: 4k pages, 39-bit VAs, > pgdp=000000014839f000 > [ 106.642472] [0000000000000008] pgd=000000016ab1f003, > pud=000000016ab1f003, pmd=0000000000000000 > [ 106.651410] Internal error: Oops: 96000006 [#1] PREEMPT SMP > [ 106.657132] Modules linked in: rfcomm algif_hash algif_skcipher > af_alg uinput venus_dec venus_enc videobuf2_dma_sg hci_uart btqca > venus_core qcom_spmi_adc5 qcom_spmi_temp_alarm qcom_vadc_common > snd_soc_rt5682_i2c v4l2_mem2mem snd_soc_sc7180 snd_soc_rt5682 > snd_soc_qcom_common snd_soc_rl6231 bluetooth ecdh_generic ecc > snd_soc_lpass_sc7180 snd_soc_lpass_hdmi snd_soc_lpass_cpu > snd_soc_lpass_platform snd_soc_max98357a xt_MASQUERADE fuse > iio_trig_sysfs cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core > industrialio_triggered_buffer cros_ec_sensors_ring rmtfs_mem kfifo_buf > cros_ec_sensorhub ath10k_snoc lzo_rle ath10k_core lzo_compress ath > zram mac80211 ipa qmi_helpers cfg80211 qcom_q6v5_mss qcom_pil_info > qcom_q6v5 qcom_common cdc_ether usbnet r8152 mii uvcvideo > videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common > joydev > [ 106.732576] CPU: 7 PID: 3622 Comm: DrmThread Not tainted 5.4.72 #40 > [ 106.739004] Hardware name: Google Lazor (rev1+) (DT) > [ 106.744103] pstate: 60400009 (nZCv daif +PAN -UAO) > [ 106.749027] pc : load_scale_v4+0x160/0x3a4 [venus_core] > [ 106.754396] lr : load_scale_v4+0x154/0x3a4 [venus_core] > [ 106.759766] sp : ffffffc0120ab9e0 > [ 106.763171] x29: ffffffc0120ab9e0 x28: 0000000000000005 > [ 106.768629] x27: 0000000000000000 x26: 0000000000000000 > [ 106.774080] x25: 0000000000000000 x24: 000000000000001e > [ 106.779530] x23: 0000000000000000 x22: ffffff80b41a8000 > [ 106.784980] x21: ffffffd344e97e98 x20: ffffff80cb5b8080 > [ 106.790431] x19: ffffff80fa3b1410 x18: 00000000ffff0a10 > [ 106.795881] x17: 000000000000003c x16: ffffffd398ec2e88 > [ 106.801329] x15: 0000000000000006 x14: ffff001000000600 > [ 106.806779] x13: 000000000002cca2 x12: 0000000000000000 > [ 106.812229] x11: 0000000000000000 x10: 0000000000000000 > [ 106.817679] x9 : 472cbd12793c4600 x8 : 0000000000000000 > [ 106.823137] x7 : 0000000000000000 x6 : ffffffd399dbcc6c > [ 106.828585] x5 : 0000000000000000 x4 : 0000000000000000 > [ 106.834035] x3 : 0000000000000000 x2 : ffffff80ff6ae5c0 > [ 106.839487] x1 : ffffff80ff69e018 x0 : ffffffd344e990ac > [ 106.844937] Call trace: > [ 106.847460] load_scale_v4+0x160/0x3a4 [venus_core] > [ 106.852473] venc_buf_cleanup+0x198/0x1f0 [venus_enc] > [ 106.857656] __vb2_queue_free+0x90/0x1f4 [videobuf2_common] > [ 106.863374] vb2_core_queue_release+0x3c/0x50 [videobuf2_common] > [ 106.869541] vb2_queue_release+0x1c/0x28 [videobuf2_v4l2] > [ 106.875082] v4l2_m2m_ctx_release+0x24/0x40 [v4l2_mem2mem] > [ 106.880710] venc_close+0x24/0x78 [venus_enc] > [ 106.885188] v4l2_release+0x8c/0xdc > [ 106.888779] __fput+0xe0/0x214 > [ 106.891916] ____fput+0x1c/0x28 > [ 106.895148] task_work_run+0x94/0xc4 > [ 106.898828] do_exit+0x244/0x7c8 > [ 106.902147] do_group_exit+0x88/0x98 > [ 106.905825] get_signal+0x1cc/0x674 > [ 106.909415] do_notify_resume+0x134/0x1410 > [ 106.913619] work_pending+0x8/0x10 > [ 106.917119] Code: 97ffd58d f94032c8 90000020 9102b000 (f9400501) > [ 106.923377] ---[ end trace a9caaf72c228e386 ]--- > [ 106.928767] Kernel panic - not syncing: Fatal exception > [ 106.934131] SMP: stopping secondary CPUs > [ 106.938347] Kernel Offset: 0x1388a00000 from 0xffffffc010000000 > [ 106.944426] PHYS_OFFSET: 0xffffffd900000000 > [ 106.948722] CPU features: 0x08102e,2a80aa18 > [ 106.953015] Memory Limit: none > > > This is the debug log before the crash: > [Nov 2 15:33] qcom-venus aa00000.video-codec: VenusLow : venus hw > version 4.44.20a > [ +0.000065] videodev: v4l2_open: video2: open (0) > [ +0.000019] video2: VIDIOC_ENUM_FMT: index=0, type=vid-cap-mplane, > flags=0x1, pixelformat=H264, description='H.264' > [ +0.000017] video2: VIDIOC_ENUM_FMT: index=1, type=vid-cap-mplane, > flags=0x1, pixelformat=VP80, description='VP8' > [ +0.000042] video2: VIDIOC_ENUM_FMT: index=2, type=vid-cap-mplane, > flags=0x1, pixelformat=HEVC, description='HEVC' > [ +0.000030] video2: VIDIOC_ENUM_FMT: error -22: index=3, > type=vid-cap-mplane, flags=0x0, pixelformat=\x00\x00\x00\x00, > description='' > [ +0.000068] videodev: v4l2_release: video2: release > [ +0.002752] qcom-venus aa00000.video-codec: VenusLow : venus hw > version 4.44.20a > [ +0.000062] videodev: v4l2_open: video2: open (0) > [ +0.000071] video2: VIDIOC_ENUM_FRAMESIZES: index=0, > pixelformat=H264, type=3, min=96x96, max=4096x4096, step=16x16 > [ +0.000012] video2: VIDIOC_TRY_ENCODER_CMD: cmd=1, flags=0x0 > [ +0.000005] video2: VIDIOC_QUERYCAP: driver=qcom-venus, > card=Qualcomm Venus video encoder, bus=platform:qcom-venus, > version=0x00050448, capabilities=0x84204000, device_caps=0x04204000 > [ +0.001055] video2: VIDIOC_REQBUFS: count=0, type=vid-out-mplane, > memory=mmap > [ +0.000382] video2: VIDIOC_REQBUFS: count=0, type=vid-cap-mplane, > memory=mmap > [ +0.000227] video2: VIDIOC_S_FMT: type=vid-cap-mplane, width=96, > height=96, format=H264, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000027] plane 0: bytesperline=0 sizeimage=2097152 > [ +0.000527] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000024] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000032] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000017] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000024] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000017] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000075] video2: VIDIOC_S_SELECTION: type=vid-out, target=0, > flags=0x0, wxh=320x192, x,y=0,0 > [ +0.028300] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000036] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000033] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000014] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000020] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, > height=192, format=NV12, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000120] plane 0: bytesperline=384 sizeimage=122880 > [ +0.000157] video2: VIDIOC_S_SELECTION: type=vid-out, target=0, > flags=0x0, wxh=320x192, x,y=0,0 > [ +0.000250] video2: VIDIOC_S_EXT_CTRLS: which=0x990000, count=1, > error_idx=0, request_fd=0, id/val=0x9909d7/0x1 > [ +0.000120] video2: VIDIOC_QUERYCTRL: error -22: id=0x990b84, > type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000 > [ +0.000368] v4l2-ctrls: try_set_ext_ctrls: video2: video2: > try_set_ext_ctrls_common failed (-22) > [ +0.000087] video2: VIDIOC_S_EXT_CTRLS: error -22: which=0x990000, > count=5, error_idx=5, request_fd=0, id/val=0x9909ca/0x0, > id/val=0x990a62/0x33, id/val=0x990a6b/0x2, id/val=0x990a67/0xb, > id/val=0x9909d8/0x1 > [ +0.000290] v4l2-ctrls: prepare_ext_ctrls: video2: cannot find > control id 0x9909da > [ +0.000010] v4l2-ctrls: try_set_ext_ctrls: video2: video2: > try_set_ext_ctrls_common failed (-22) > [ +0.000014] video2: VIDIOC_S_EXT_CTRLS: error -22: which=0x990000, > count=2, error_idx=2, request_fd=0, id/val=0x9909da/0x1, > id/val=0x9909cb/0x0 > [ +0.000225] video2: VIDIOC_G_FMT: type=vid-cap-mplane, width=320, > height=192, format=H264, field=none, colorspace=0, num_planes=1, > flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 > [ +0.000028] plane 0: bytesperline=0 sizeimage=49152 > [ +0.002272] video2: VIDIOC_REQBUFS: count=4, type=vid-cap-mplane, > memory=mmap > [ +0.001661] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=0, > type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, > sequence=0, memory=mmap > [ +0.000034] plane 0: bytesused=0, data_offset=0x00000000, > offset/userptr=0xee18ad4840000000, length=2097152 > [ +0.000009] timecode=00:00:00 type=0, flags=0x00000000, frames=0, > userbits=0x00000000 > [ +0.000142] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=1, > type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, > sequence=0, memory=mmap > [ +0.000023] plane 0: bytesused=0, data_offset=0x00000000, > offset/userptr=0xee18ad4840200000, length=2097152 > [ +0.000008] timecode=00:00:00 type=0, flags=0x00000000, frames=0, > userbits=0x00000000 > [ +0.000409] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=2, > type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, > sequence=0, memory=mmap > [ +0.000027] plane 0: bytesused=0, data_offset=0x00000000, > offset/userptr=0xee18ad4840400000, length=2097152 > [ +0.000007] timecode=00:00:00 type=0, flags=0x00000000, frames=0, > userbits=0x00000000 > [ +0.000233] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=3, > type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, > sequence=0, memory=mmap > [ +0.000023] plane 0: bytesused=0, data_offset=0x00000000, > offset/userptr=0xee18ad4840600000, length=2097152 > [ +0.000015] timecode=00:00:00 type=0, flags=0x00000000, frames=0, > userbits=0x00000000 > [ +0.000288] video2: VIDIOC_S_EXT_CTRLS: which=0x990000, count=1, > error_idx=0, request_fd=0, id/val=0x9909cf/0x30d40 > [ +0.000184] video2: VIDIOC_S_PARM: type=vid-out-mplane, > capability=0x1000, outputmode=0x0, timeperframe=1/30, extendedmode=0, > writebuffers=0 > [ +0.310832] qcom-venus-encoder aa00000.video-codec:video-encoder: > VenusHigh: wrong state! > >> + INIT_LIST_HEAD(&inst->registeredbufs); >> + >> + inst->enc_state = VENUS_ENC_STATE_INIT; >> + >> + mutex_unlock(&inst->lock); >> + >> + venus_pm_release_core(inst); >> +} >> + >> +static int venc_buf_init(struct vb2_buffer *vb) >> +{ >> + struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >> + >> + inst->buf_count++; >> + >> + return venus_helper_vb2_buf_init(vb); >> +} >> + >> +static void venc_buf_cleanup(struct vb2_buffer *vb) >> +{ >> + struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >> + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); >> + struct venus_buffer *buf = to_venus_buffer(vbuf); >> + >> + mutex_lock(&inst->lock); >> + if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) >> + if (!list_empty(&inst->registeredbufs)) >> + list_del_init(&buf->reg_list); >> + mutex_unlock(&inst->lock); >> + >> + inst->buf_count--; >> + if (!inst->buf_count) >> + venc_release_session(inst); >> +} >> + >> static int venc_verify_conf(struct venus_inst *inst) >> { >> enum hfi_version ver = inst->core->res->hfi_version; >> @@ -881,61 +945,73 @@ static int venc_verify_conf(struct venus_inst >> *inst) >> static int venc_start_streaming(struct vb2_queue *q, unsigned int >> count) >> { >> struct venus_inst *inst = vb2_get_drv_priv(q); >> - int ret; >> + int ret = 0; >> >> mutex_lock(&inst->lock); >> >> - if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) >> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >> inst->streamon_out = 1; >> else >> inst->streamon_cap = 1; >> >> - if (!(inst->streamon_out & inst->streamon_cap)) { >> - mutex_unlock(&inst->lock); >> - return 0; >> - } >> + if (!(inst->streamon_out & inst->streamon_cap)) >> + goto unlock; >> >> - venus_helper_init_instance(inst); >> + if (inst->enc_state == VENUS_ENC_STATE_INIT) { >> + venus_helper_init_instance(inst); >> >> - inst->sequence_cap = 0; >> - inst->sequence_out = 0; >> + inst->sequence_cap = 0; >> + inst->sequence_out = 0; >> >> - ret = venc_init_session(inst); >> - if (ret) >> - goto bufs_done; >> + ret = venc_init_session(inst); >> + if (ret) >> + goto bufs_done; >> >> - ret = venus_pm_acquire_core(inst); >> - if (ret) >> - goto deinit_sess; >> + ret = venus_pm_acquire_core(inst); >> + if (ret) >> + goto deinit_sess; >> >> - ret = venc_set_properties(inst); >> - if (ret) >> - goto deinit_sess; >> + ret = venc_verify_conf(inst); >> + if (ret) >> + goto deinit_sess; >> >> - ret = venc_verify_conf(inst); >> - if (ret) >> - goto deinit_sess; >> + ret = venus_helper_set_num_bufs(inst, >> inst->num_input_bufs, >> + inst->num_output_bufs, >> 0); >> + if (ret) >> + goto deinit_sess; >> >> - ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs, >> - inst->num_output_bufs, 0); >> - if (ret) >> - goto deinit_sess; >> + ret = venus_helper_vb2_start_streaming(inst); >> + if (ret) >> + goto deinit_sess; >> >> - ret = venus_helper_vb2_start_streaming(inst); >> - if (ret) >> - goto deinit_sess; >> + venus_helper_process_initial_out_bufs(inst); >> + venus_helper_process_initial_cap_bufs(inst); >> >> - inst->enc_state = VENUS_ENC_STATE_ENCODING; >> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >> + } else if (inst->enc_state == VENUS_ENC_STATE_RESET && >> + V4L2_TYPE_IS_CAPTURE(q->type)) { >> + ret = venus_helper_vb2_start_streaming(inst); >> + if (ret) >> + goto bufs_done; >> >> - mutex_unlock(&inst->lock); >> + venus_helper_process_initial_out_bufs(inst); >> + venus_helper_process_initial_cap_bufs(inst); >> >> - return 0; >> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >> + } else if (inst->enc_state == VENUS_ENC_STATE_STOPPED && >> + V4L2_TYPE_IS_OUTPUT(q->type)) { >> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >> + } >> + >> +unlock: >> + mutex_unlock(&inst->lock); >> + return ret; >> >> deinit_sess: >> hfi_session_deinit(inst); >> bufs_done: >> venus_helper_buffers_done(inst, q->type, >> VB2_BUF_STATE_QUEUED); >> - if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) >> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >> inst->streamon_out = 0; >> else >> inst->streamon_cap = 0; >> @@ -943,33 +1019,97 @@ static int venc_start_streaming(struct >> vb2_queue *q, unsigned int count) >> return ret; >> } >> >> -static void venc_vb2_buf_queue(struct vb2_buffer *vb) >> +static int venc_stop_capture(struct venus_inst *inst) >> +{ >> + int ret; >> + >> + switch (inst->enc_state) { >> + case VENUS_ENC_STATE_ENCODING: >> + case VENUS_ENC_STATE_DRAIN: >> + case VENUS_ENC_STATE_STOPPED: >> + inst->enc_state = VENUS_ENC_STATE_RESET; >> + break; >> + default: >> + return -EINVAL; >> + } >> + >> + ret = hfi_session_stop(inst); >> + ret |= hfi_session_unload_res(inst); >> + ret |= venus_helper_unregister_bufs(inst); >> + ret |= venus_helper_intbufs_free(inst); >> + >> + return ret; >> +} >> + >> +static int venc_stop_output(struct venus_inst *inst) >> +{ >> + switch (inst->enc_state) { >> + case VENUS_ENC_STATE_ENCODING: >> + inst->enc_state = VENUS_ENC_STATE_STOPPED; >> + break; >> + case VENUS_ENC_STATE_DRAIN: >> + inst->enc_state = VENUS_ENC_STATE_STOPPED; >> + break; >> + default: >> + return -EINVAL; >> + } >> + >> + return 0; >> +} >> + >> +static void venc_stop_streaming(struct vb2_queue *q) >> +{ >> + struct venus_inst *inst = vb2_get_drv_priv(q); >> + int ret = -EINVAL; >> + >> + mutex_lock(&inst->lock); >> + >> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >> + ret = venc_stop_output(inst); >> + else >> + ret = venc_stop_capture(inst); >> + >> + venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR); >> + >> + if (ret) >> + goto unlock; >> + >> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >> + inst->streamon_out = 0; >> + else >> + inst->streamon_cap = 0; >> + >> +unlock: >> + mutex_unlock(&inst->lock); >> +} >> + >> +static void venc_buf_queue(struct vb2_buffer *vb) >> { >> struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >> struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); >> + struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx; >> >> mutex_lock(&inst->lock); >> >> - if (inst->enc_state == VENUS_ENC_STATE_STOPPED) { >> - vbuf->sequence = inst->sequence_cap++; >> - vbuf->field = V4L2_FIELD_NONE; >> - vb2_set_plane_payload(vb, 0, 0); >> - v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE); >> - mutex_unlock(&inst->lock); >> - return; >> - } >> + v4l2_m2m_buf_queue(m2m_ctx, vbuf); >> + >> + if (!(inst->streamon_out && inst->streamon_cap)) >> + goto unlock; >> + >> + venus_helper_process_buf(vb); >> >> - venus_helper_vb2_buf_queue(vb); >> +unlock: >> mutex_unlock(&inst->lock); >> } >> >> static const struct vb2_ops venc_vb2_ops = { >> .queue_setup = venc_queue_setup, >> - .buf_init = venus_helper_vb2_buf_init, >> + .buf_init = venc_buf_init, >> + .buf_cleanup = venc_buf_cleanup, >> .buf_prepare = venus_helper_vb2_buf_prepare, >> .start_streaming = venc_start_streaming, >> - .stop_streaming = venus_helper_vb2_stop_streaming, >> - .buf_queue = venc_vb2_buf_queue, >> + .stop_streaming = venc_stop_streaming, >> + .buf_queue = venc_buf_queue, >> }; >> >> static void venc_buf_done(struct venus_inst *inst, unsigned int >> buf_type, >> @@ -1025,8 +1165,12 @@ static const struct hfi_inst_ops venc_hfi_ops = >> { >> .event_notify = venc_event_notify, >> }; >> >> +static void venc_m2m_device_run(void *priv) >> +{ >> +} >> + >> static const struct v4l2_m2m_ops venc_m2m_ops = { >> - .device_run = venus_helper_m2m_device_run, >> + .device_run = venc_m2m_device_run, >> .job_abort = venus_helper_m2m_job_abort, >> }; >> >> @@ -1098,11 +1242,9 @@ static int venc_open(struct file *file) >> inst->core = core; >> inst->session_type = VIDC_SESSION_TYPE_ENC; >> inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT; >> + inst->enc_state = VENUS_ENC_STATE_INIT; >> inst->core_acquired = false; >> >> - if (inst->enc_state == VENUS_ENC_STATE_DEINIT) >> - inst->enc_state = VENUS_ENC_STATE_INIT; >> - >> venus_helper_init_instance(inst); >> >> ret = pm_runtime_get_sync(core->dev_enc); >> @@ -1167,7 +1309,7 @@ static int venc_close(struct file *file) >> mutex_destroy(&inst->lock); >> v4l2_fh_del(&inst->fh); >> v4l2_fh_exit(&inst->fh); >> - inst->enc_state = VENUS_ENC_STATE_DEINIT; >> + >> pm_runtime_put_sync(inst->core->dev_enc); >> >> kfree(inst); >> -- >> 2.17.1 >> Thanks, Vikash
On 11/4/20 12:44 PM, vgarodia@codeaurora.org wrote: > Hi Stan, > > On 2020-11-03 06:46, Fritz Koenig wrote: >> On Fri, Oct 23, 2020 at 5:57 AM Stanimir Varbanov >> <stanimir.varbanov@linaro.org> wrote: >>> >>> Redesign the encoder driver to be compliant with stateful encoder >>> spec - specifically adds handling of Reset state. >>> >>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> >>> --- >>> drivers/media/platform/qcom/venus/core.h | 10 +- >>> drivers/media/platform/qcom/venus/venc.c | 242 ++++++++++++++++++----- >>> 2 files changed, 197 insertions(+), 55 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/venus/core.h >>> b/drivers/media/platform/qcom/venus/core.h >>> index 5c4693678e3f..294d5467a6a1 100644 >>> --- a/drivers/media/platform/qcom/venus/core.h >>> +++ b/drivers/media/platform/qcom/venus/core.h >>> @@ -277,11 +277,11 @@ enum venus_dec_state { >>> }; >>> >>> enum venus_enc_state { >>> - VENUS_ENC_STATE_DEINIT = 0, >>> - VENUS_ENC_STATE_INIT = 1, >>> - VENUS_ENC_STATE_ENCODING = 2, >>> - VENUS_ENC_STATE_STOPPED = 3, >>> - VENUS_ENC_STATE_DRAIN = 4, >>> + VENUS_ENC_STATE_INIT = 0, >>> + VENUS_ENC_STATE_ENCODING = 1, >>> + VENUS_ENC_STATE_STOPPED = 2, >>> + VENUS_ENC_STATE_DRAIN = 3, >>> + VENUS_ENC_STATE_RESET = 4, >>> }; >>> >>> struct venus_ts_metadata { >>> diff --git a/drivers/media/platform/qcom/venus/venc.c >>> b/drivers/media/platform/qcom/venus/venc.c >>> index c6143b07914c..aa9255ddb0a5 100644 >>> --- a/drivers/media/platform/qcom/venus/venc.c >>> +++ b/drivers/media/platform/qcom/venus/venc.c >>> @@ -565,6 +565,7 @@ static const struct v4l2_ioctl_ops venc_ioctl_ops >>> = { >>> .vidioc_enum_frameintervals = venc_enum_frameintervals, >>> .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, >>> .vidioc_unsubscribe_event = v4l2_event_unsubscribe, >>> + .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, >>> .vidioc_encoder_cmd = venc_encoder_cmd, >>> }; >>> >>> @@ -850,6 +851,69 @@ static int venc_queue_setup(struct vb2_queue *q, >>> return ret; >>> } >>> >>> +static void venc_release_session(struct venus_inst *inst) >>> +{ >>> + struct venus_core *core = inst->core; >>> + int ret, abort = 0; >>> + >>> + mutex_lock(&inst->lock); >>> + >>> + if (inst->enc_state != VENUS_ENC_STATE_RESET) >>> + dev_dbg(core->dev_enc, VDBGH "wrong state!\n"); >>> + >>> + ret = hfi_session_stop(inst); >>> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >>> + ret = hfi_session_unload_res(inst); >>> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >>> + ret = venus_helper_unregister_bufs(inst); >>> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >>> + ret = venus_helper_intbufs_free(inst); >>> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >>> + ret = hfi_session_deinit(inst); >>> + abort |= (ret && ret != -EINVAL) ? 1 : 0; >>> + >>> + if (inst->session_error) >>> + abort = 1; >>> + >>> + if (abort) >>> + hfi_session_abort(inst); >>> + >>> + venus_pm_load_scale(inst); >> >> venus_pm_load_scale depends on inst->clk_data.codec_freq_data being >> set up. This occurs in venc_init_session(). I am seeing scenarios >> where the encoder is getting setup up, but before it is finished, >> teardown occurs. If this teardown occurs before >> inst->clk_data.codec_freq_data is initalized, a crash occurs. (also >> "wrong state!" is printed out) > > venus_pm_load_scale(inst) is called here to remove the votes for clock > and bus bandwidth. This is not needed for instances which are closed > just after moving them to INIT state. I have tried with below state > handling > and it works well i.e call for venus_pm_load_scale(inst) from state other > than the INIT state. IMO we have to check the INST state in venus_pm_load_scale(). We made similar check in min_loaded_core() here [1]. [1] https://www.spinics.net/lists/kernel/msg3498215.html > > - venus_pm_load_scale(inst); > + if(inst->enc_state != VENUS_ENC_STATE_INIT) > + venus_pm_load_scale(inst); > >> >> [ 106.593198] Unable to handle kernel NULL pointer dereference at >> virtual address 0000000000000008 >> [ 106.603916] Mem abort info: >> [ 106.608470] ESR = 0x96000006 >> [ 106.613802] EC = 0x25: DABT (current EL), IL = 32 bits >> [ 106.619426] SET = 0, FnV = 0 >> [ 106.622619] EA = 0, S1PTW = 0 >> [ 106.625862] Data abort info: >> [ 106.628835] ISV = 0, ISS = 0x00000006 >> [ 106.632785] CM = 0, WnR = 0 >> [ 106.635850] user pgtable: 4k pages, 39-bit VAs, pgdp=000000014839f000 >> [ 106.642472] [0000000000000008] pgd=000000016ab1f003, >> pud=000000016ab1f003, pmd=0000000000000000 >> [ 106.651410] Internal error: Oops: 96000006 [#1] PREEMPT SMP >> [ 106.657132] Modules linked in: rfcomm algif_hash algif_skcipher >> af_alg uinput venus_dec venus_enc videobuf2_dma_sg hci_uart btqca >> venus_core qcom_spmi_adc5 qcom_spmi_temp_alarm qcom_vadc_common >> snd_soc_rt5682_i2c v4l2_mem2mem snd_soc_sc7180 snd_soc_rt5682 >> snd_soc_qcom_common snd_soc_rl6231 bluetooth ecdh_generic ecc >> snd_soc_lpass_sc7180 snd_soc_lpass_hdmi snd_soc_lpass_cpu >> snd_soc_lpass_platform snd_soc_max98357a xt_MASQUERADE fuse >> iio_trig_sysfs cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core >> industrialio_triggered_buffer cros_ec_sensors_ring rmtfs_mem kfifo_buf >> cros_ec_sensorhub ath10k_snoc lzo_rle ath10k_core lzo_compress ath >> zram mac80211 ipa qmi_helpers cfg80211 qcom_q6v5_mss qcom_pil_info >> qcom_q6v5 qcom_common cdc_ether usbnet r8152 mii uvcvideo >> videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common >> joydev >> [ 106.732576] CPU: 7 PID: 3622 Comm: DrmThread Not tainted 5.4.72 #40 >> [ 106.739004] Hardware name: Google Lazor (rev1+) (DT) >> [ 106.744103] pstate: 60400009 (nZCv daif +PAN -UAO) >> [ 106.749027] pc : load_scale_v4+0x160/0x3a4 [venus_core] >> [ 106.754396] lr : load_scale_v4+0x154/0x3a4 [venus_core] >> [ 106.759766] sp : ffffffc0120ab9e0 >> [ 106.763171] x29: ffffffc0120ab9e0 x28: 0000000000000005 >> [ 106.768629] x27: 0000000000000000 x26: 0000000000000000 >> [ 106.774080] x25: 0000000000000000 x24: 000000000000001e >> [ 106.779530] x23: 0000000000000000 x22: ffffff80b41a8000 >> [ 106.784980] x21: ffffffd344e97e98 x20: ffffff80cb5b8080 >> [ 106.790431] x19: ffffff80fa3b1410 x18: 00000000ffff0a10 >> [ 106.795881] x17: 000000000000003c x16: ffffffd398ec2e88 >> [ 106.801329] x15: 0000000000000006 x14: ffff001000000600 >> [ 106.806779] x13: 000000000002cca2 x12: 0000000000000000 >> [ 106.812229] x11: 0000000000000000 x10: 0000000000000000 >> [ 106.817679] x9 : 472cbd12793c4600 x8 : 0000000000000000 >> [ 106.823137] x7 : 0000000000000000 x6 : ffffffd399dbcc6c >> [ 106.828585] x5 : 0000000000000000 x4 : 0000000000000000 >> [ 106.834035] x3 : 0000000000000000 x2 : ffffff80ff6ae5c0 >> [ 106.839487] x1 : ffffff80ff69e018 x0 : ffffffd344e990ac >> [ 106.844937] Call trace: >> [ 106.847460] load_scale_v4+0x160/0x3a4 [venus_core] >> [ 106.852473] venc_buf_cleanup+0x198/0x1f0 [venus_enc] >> [ 106.857656] __vb2_queue_free+0x90/0x1f4 [videobuf2_common] >> [ 106.863374] vb2_core_queue_release+0x3c/0x50 [videobuf2_common] >> [ 106.869541] vb2_queue_release+0x1c/0x28 [videobuf2_v4l2] >> [ 106.875082] v4l2_m2m_ctx_release+0x24/0x40 [v4l2_mem2mem] >> [ 106.880710] venc_close+0x24/0x78 [venus_enc] >> [ 106.885188] v4l2_release+0x8c/0xdc >> [ 106.888779] __fput+0xe0/0x214 >> [ 106.891916] ____fput+0x1c/0x28 >> [ 106.895148] task_work_run+0x94/0xc4 >> [ 106.898828] do_exit+0x244/0x7c8 >> [ 106.902147] do_group_exit+0x88/0x98 >> [ 106.905825] get_signal+0x1cc/0x674 >> [ 106.909415] do_notify_resume+0x134/0x1410 >> [ 106.913619] work_pending+0x8/0x10 >> [ 106.917119] Code: 97ffd58d f94032c8 90000020 9102b000 (f9400501) >> [ 106.923377] ---[ end trace a9caaf72c228e386 ]--- >> [ 106.928767] Kernel panic - not syncing: Fatal exception >> [ 106.934131] SMP: stopping secondary CPUs >> [ 106.938347] Kernel Offset: 0x1388a00000 from 0xffffffc010000000 >> [ 106.944426] PHYS_OFFSET: 0xffffffd900000000 >> [ 106.948722] CPU features: 0x08102e,2a80aa18 >> [ 106.953015] Memory Limit: none >> >> >> This is the debug log before the crash: >> [Nov 2 15:33] qcom-venus aa00000.video-codec: VenusLow : venus hw >> version 4.44.20a >> [ +0.000065] videodev: v4l2_open: video2: open (0) >> [ +0.000019] video2: VIDIOC_ENUM_FMT: index=0, type=vid-cap-mplane, >> flags=0x1, pixelformat=H264, description='H.264' >> [ +0.000017] video2: VIDIOC_ENUM_FMT: index=1, type=vid-cap-mplane, >> flags=0x1, pixelformat=VP80, description='VP8' >> [ +0.000042] video2: VIDIOC_ENUM_FMT: index=2, type=vid-cap-mplane, >> flags=0x1, pixelformat=HEVC, description='HEVC' >> [ +0.000030] video2: VIDIOC_ENUM_FMT: error -22: index=3, >> type=vid-cap-mplane, flags=0x0, pixelformat=\x00\x00\x00\x00, >> description='' >> [ +0.000068] videodev: v4l2_release: video2: release >> [ +0.002752] qcom-venus aa00000.video-codec: VenusLow : venus hw >> version 4.44.20a >> [ +0.000062] videodev: v4l2_open: video2: open (0) >> [ +0.000071] video2: VIDIOC_ENUM_FRAMESIZES: index=0, >> pixelformat=H264, type=3, min=96x96, max=4096x4096, step=16x16 >> [ +0.000012] video2: VIDIOC_TRY_ENCODER_CMD: cmd=1, flags=0x0 >> [ +0.000005] video2: VIDIOC_QUERYCAP: driver=qcom-venus, >> card=Qualcomm Venus video encoder, bus=platform:qcom-venus, >> version=0x00050448, capabilities=0x84204000, device_caps=0x04204000 >> [ +0.001055] video2: VIDIOC_REQBUFS: count=0, type=vid-out-mplane, >> memory=mmap >> [ +0.000382] video2: VIDIOC_REQBUFS: count=0, type=vid-cap-mplane, >> memory=mmap >> [ +0.000227] video2: VIDIOC_S_FMT: type=vid-cap-mplane, width=96, >> height=96, format=H264, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000027] plane 0: bytesperline=0 sizeimage=2097152 >> [ +0.000527] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000024] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000032] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000017] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000024] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000017] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000075] video2: VIDIOC_S_SELECTION: type=vid-out, target=0, >> flags=0x0, wxh=320x192, x,y=0,0 >> [ +0.028300] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000036] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000033] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000014] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000020] video2: VIDIOC_S_FMT: type=vid-out-mplane, width=384, >> height=192, format=NV12, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000120] plane 0: bytesperline=384 sizeimage=122880 >> [ +0.000157] video2: VIDIOC_S_SELECTION: type=vid-out, target=0, >> flags=0x0, wxh=320x192, x,y=0,0 >> [ +0.000250] video2: VIDIOC_S_EXT_CTRLS: which=0x990000, count=1, >> error_idx=0, request_fd=0, id/val=0x9909d7/0x1 >> [ +0.000120] video2: VIDIOC_QUERYCTRL: error -22: id=0x990b84, >> type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000 >> [ +0.000368] v4l2-ctrls: try_set_ext_ctrls: video2: video2: >> try_set_ext_ctrls_common failed (-22) >> [ +0.000087] video2: VIDIOC_S_EXT_CTRLS: error -22: which=0x990000, >> count=5, error_idx=5, request_fd=0, id/val=0x9909ca/0x0, >> id/val=0x990a62/0x33, id/val=0x990a6b/0x2, id/val=0x990a67/0xb, >> id/val=0x9909d8/0x1 >> [ +0.000290] v4l2-ctrls: prepare_ext_ctrls: video2: cannot find >> control id 0x9909da >> [ +0.000010] v4l2-ctrls: try_set_ext_ctrls: video2: video2: >> try_set_ext_ctrls_common failed (-22) >> [ +0.000014] video2: VIDIOC_S_EXT_CTRLS: error -22: which=0x990000, >> count=2, error_idx=2, request_fd=0, id/val=0x9909da/0x1, >> id/val=0x9909cb/0x0 >> [ +0.000225] video2: VIDIOC_G_FMT: type=vid-cap-mplane, width=320, >> height=192, format=H264, field=none, colorspace=0, num_planes=1, >> flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0 >> [ +0.000028] plane 0: bytesperline=0 sizeimage=49152 >> [ +0.002272] video2: VIDIOC_REQBUFS: count=4, type=vid-cap-mplane, >> memory=mmap >> [ +0.001661] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=0, >> type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, >> sequence=0, memory=mmap >> [ +0.000034] plane 0: bytesused=0, data_offset=0x00000000, >> offset/userptr=0xee18ad4840000000, length=2097152 >> [ +0.000009] timecode=00:00:00 type=0, flags=0x00000000, frames=0, >> userbits=0x00000000 >> [ +0.000142] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=1, >> type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, >> sequence=0, memory=mmap >> [ +0.000023] plane 0: bytesused=0, data_offset=0x00000000, >> offset/userptr=0xee18ad4840200000, length=2097152 >> [ +0.000008] timecode=00:00:00 type=0, flags=0x00000000, frames=0, >> userbits=0x00000000 >> [ +0.000409] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=2, >> type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, >> sequence=0, memory=mmap >> [ +0.000027] plane 0: bytesused=0, data_offset=0x00000000, >> offset/userptr=0xee18ad4840400000, length=2097152 >> [ +0.000007] timecode=00:00:00 type=0, flags=0x00000000, frames=0, >> userbits=0x00000000 >> [ +0.000233] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=3, >> type=vid-cap-mplane, request_fd=0, flags=0x00004000, field=any, >> sequence=0, memory=mmap >> [ +0.000023] plane 0: bytesused=0, data_offset=0x00000000, >> offset/userptr=0xee18ad4840600000, length=2097152 >> [ +0.000015] timecode=00:00:00 type=0, flags=0x00000000, frames=0, >> userbits=0x00000000 >> [ +0.000288] video2: VIDIOC_S_EXT_CTRLS: which=0x990000, count=1, >> error_idx=0, request_fd=0, id/val=0x9909cf/0x30d40 >> [ +0.000184] video2: VIDIOC_S_PARM: type=vid-out-mplane, >> capability=0x1000, outputmode=0x0, timeperframe=1/30, extendedmode=0, >> writebuffers=0 >> [ +0.310832] qcom-venus-encoder aa00000.video-codec:video-encoder: >> VenusHigh: wrong state! >> >>> + INIT_LIST_HEAD(&inst->registeredbufs); >>> + >>> + inst->enc_state = VENUS_ENC_STATE_INIT; >>> + >>> + mutex_unlock(&inst->lock); >>> + >>> + venus_pm_release_core(inst); >>> +} >>> + >>> +static int venc_buf_init(struct vb2_buffer *vb) >>> +{ >>> + struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >>> + >>> + inst->buf_count++; >>> + >>> + return venus_helper_vb2_buf_init(vb); >>> +} >>> + >>> +static void venc_buf_cleanup(struct vb2_buffer *vb) >>> +{ >>> + struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >>> + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); >>> + struct venus_buffer *buf = to_venus_buffer(vbuf); >>> + >>> + mutex_lock(&inst->lock); >>> + if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) >>> + if (!list_empty(&inst->registeredbufs)) >>> + list_del_init(&buf->reg_list); >>> + mutex_unlock(&inst->lock); >>> + >>> + inst->buf_count--; >>> + if (!inst->buf_count) >>> + venc_release_session(inst); >>> +} >>> + >>> static int venc_verify_conf(struct venus_inst *inst) >>> { >>> enum hfi_version ver = inst->core->res->hfi_version; >>> @@ -881,61 +945,73 @@ static int venc_verify_conf(struct venus_inst >>> *inst) >>> static int venc_start_streaming(struct vb2_queue *q, unsigned int >>> count) >>> { >>> struct venus_inst *inst = vb2_get_drv_priv(q); >>> - int ret; >>> + int ret = 0; >>> >>> mutex_lock(&inst->lock); >>> >>> - if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) >>> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >>> inst->streamon_out = 1; >>> else >>> inst->streamon_cap = 1; >>> >>> - if (!(inst->streamon_out & inst->streamon_cap)) { >>> - mutex_unlock(&inst->lock); >>> - return 0; >>> - } >>> + if (!(inst->streamon_out & inst->streamon_cap)) >>> + goto unlock; >>> >>> - venus_helper_init_instance(inst); >>> + if (inst->enc_state == VENUS_ENC_STATE_INIT) { >>> + venus_helper_init_instance(inst); >>> >>> - inst->sequence_cap = 0; >>> - inst->sequence_out = 0; >>> + inst->sequence_cap = 0; >>> + inst->sequence_out = 0; >>> >>> - ret = venc_init_session(inst); >>> - if (ret) >>> - goto bufs_done; >>> + ret = venc_init_session(inst); >>> + if (ret) >>> + goto bufs_done; >>> >>> - ret = venus_pm_acquire_core(inst); >>> - if (ret) >>> - goto deinit_sess; >>> + ret = venus_pm_acquire_core(inst); >>> + if (ret) >>> + goto deinit_sess; >>> >>> - ret = venc_set_properties(inst); >>> - if (ret) >>> - goto deinit_sess; >>> + ret = venc_verify_conf(inst); >>> + if (ret) >>> + goto deinit_sess; >>> >>> - ret = venc_verify_conf(inst); >>> - if (ret) >>> - goto deinit_sess; >>> + ret = venus_helper_set_num_bufs(inst, >>> inst->num_input_bufs, >>> + >>> inst->num_output_bufs, 0); >>> + if (ret) >>> + goto deinit_sess; >>> >>> - ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs, >>> - inst->num_output_bufs, 0); >>> - if (ret) >>> - goto deinit_sess; >>> + ret = venus_helper_vb2_start_streaming(inst); >>> + if (ret) >>> + goto deinit_sess; >>> >>> - ret = venus_helper_vb2_start_streaming(inst); >>> - if (ret) >>> - goto deinit_sess; >>> + venus_helper_process_initial_out_bufs(inst); >>> + venus_helper_process_initial_cap_bufs(inst); >>> >>> - inst->enc_state = VENUS_ENC_STATE_ENCODING; >>> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >>> + } else if (inst->enc_state == VENUS_ENC_STATE_RESET && >>> + V4L2_TYPE_IS_CAPTURE(q->type)) { >>> + ret = venus_helper_vb2_start_streaming(inst); >>> + if (ret) >>> + goto bufs_done; >>> >>> - mutex_unlock(&inst->lock); >>> + venus_helper_process_initial_out_bufs(inst); >>> + venus_helper_process_initial_cap_bufs(inst); >>> >>> - return 0; >>> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >>> + } else if (inst->enc_state == VENUS_ENC_STATE_STOPPED && >>> + V4L2_TYPE_IS_OUTPUT(q->type)) { >>> + inst->enc_state = VENUS_ENC_STATE_ENCODING; >>> + } >>> + >>> +unlock: >>> + mutex_unlock(&inst->lock); >>> + return ret; >>> >>> deinit_sess: >>> hfi_session_deinit(inst); >>> bufs_done: >>> venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED); >>> - if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) >>> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >>> inst->streamon_out = 0; >>> else >>> inst->streamon_cap = 0; >>> @@ -943,33 +1019,97 @@ static int venc_start_streaming(struct >>> vb2_queue *q, unsigned int count) >>> return ret; >>> } >>> >>> -static void venc_vb2_buf_queue(struct vb2_buffer *vb) >>> +static int venc_stop_capture(struct venus_inst *inst) >>> +{ >>> + int ret; >>> + >>> + switch (inst->enc_state) { >>> + case VENUS_ENC_STATE_ENCODING: >>> + case VENUS_ENC_STATE_DRAIN: >>> + case VENUS_ENC_STATE_STOPPED: >>> + inst->enc_state = VENUS_ENC_STATE_RESET; >>> + break; >>> + default: >>> + return -EINVAL; >>> + } >>> + >>> + ret = hfi_session_stop(inst); >>> + ret |= hfi_session_unload_res(inst); >>> + ret |= venus_helper_unregister_bufs(inst); >>> + ret |= venus_helper_intbufs_free(inst); >>> + >>> + return ret; >>> +} >>> + >>> +static int venc_stop_output(struct venus_inst *inst) >>> +{ >>> + switch (inst->enc_state) { >>> + case VENUS_ENC_STATE_ENCODING: >>> + inst->enc_state = VENUS_ENC_STATE_STOPPED; >>> + break; >>> + case VENUS_ENC_STATE_DRAIN: >>> + inst->enc_state = VENUS_ENC_STATE_STOPPED; >>> + break; >>> + default: >>> + return -EINVAL; >>> + } >>> + >>> + return 0; >>> +} >>> + >>> +static void venc_stop_streaming(struct vb2_queue *q) >>> +{ >>> + struct venus_inst *inst = vb2_get_drv_priv(q); >>> + int ret = -EINVAL; >>> + >>> + mutex_lock(&inst->lock); >>> + >>> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >>> + ret = venc_stop_output(inst); >>> + else >>> + ret = venc_stop_capture(inst); >>> + >>> + venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR); >>> + >>> + if (ret) >>> + goto unlock; >>> + >>> + if (V4L2_TYPE_IS_OUTPUT(q->type)) >>> + inst->streamon_out = 0; >>> + else >>> + inst->streamon_cap = 0; >>> + >>> +unlock: >>> + mutex_unlock(&inst->lock); >>> +} >>> + >>> +static void venc_buf_queue(struct vb2_buffer *vb) >>> { >>> struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue); >>> struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); >>> + struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx; >>> >>> mutex_lock(&inst->lock); >>> >>> - if (inst->enc_state == VENUS_ENC_STATE_STOPPED) { >>> - vbuf->sequence = inst->sequence_cap++; >>> - vbuf->field = V4L2_FIELD_NONE; >>> - vb2_set_plane_payload(vb, 0, 0); >>> - v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE); >>> - mutex_unlock(&inst->lock); >>> - return; >>> - } >>> + v4l2_m2m_buf_queue(m2m_ctx, vbuf); >>> + >>> + if (!(inst->streamon_out && inst->streamon_cap)) >>> + goto unlock; >>> + >>> + venus_helper_process_buf(vb); >>> >>> - venus_helper_vb2_buf_queue(vb); >>> +unlock: >>> mutex_unlock(&inst->lock); >>> } >>> >>> static const struct vb2_ops venc_vb2_ops = { >>> .queue_setup = venc_queue_setup, >>> - .buf_init = venus_helper_vb2_buf_init, >>> + .buf_init = venc_buf_init, >>> + .buf_cleanup = venc_buf_cleanup, >>> .buf_prepare = venus_helper_vb2_buf_prepare, >>> .start_streaming = venc_start_streaming, >>> - .stop_streaming = venus_helper_vb2_stop_streaming, >>> - .buf_queue = venc_vb2_buf_queue, >>> + .stop_streaming = venc_stop_streaming, >>> + .buf_queue = venc_buf_queue, >>> }; >>> >>> static void venc_buf_done(struct venus_inst *inst, unsigned int >>> buf_type, >>> @@ -1025,8 +1165,12 @@ static const struct hfi_inst_ops venc_hfi_ops = { >>> .event_notify = venc_event_notify, >>> }; >>> >>> +static void venc_m2m_device_run(void *priv) >>> +{ >>> +} >>> + >>> static const struct v4l2_m2m_ops venc_m2m_ops = { >>> - .device_run = venus_helper_m2m_device_run, >>> + .device_run = venc_m2m_device_run, >>> .job_abort = venus_helper_m2m_job_abort, >>> }; >>> >>> @@ -1098,11 +1242,9 @@ static int venc_open(struct file *file) >>> inst->core = core; >>> inst->session_type = VIDC_SESSION_TYPE_ENC; >>> inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT; >>> + inst->enc_state = VENUS_ENC_STATE_INIT; >>> inst->core_acquired = false; >>> >>> - if (inst->enc_state == VENUS_ENC_STATE_DEINIT) >>> - inst->enc_state = VENUS_ENC_STATE_INIT; >>> - >>> venus_helper_init_instance(inst); >>> >>> ret = pm_runtime_get_sync(core->dev_enc); >>> @@ -1167,7 +1309,7 @@ static int venc_close(struct file *file) >>> mutex_destroy(&inst->lock); >>> v4l2_fh_del(&inst->fh); >>> v4l2_fh_exit(&inst->fh); >>> - inst->enc_state = VENUS_ENC_STATE_DEINIT; >>> + >>> pm_runtime_put_sync(inst->core->dev_enc); >>> >>> kfree(inst); >>> -- >>> 2.17.1 >>> > > Thanks, > Vikash