msm: vidc: Optimize buffer requirements call to HW

Optimize buffer requirements calls to HW to reduce start-up
latency. From now onwards, driver gets output buffer requirements
from HW through sequence event change.

CRs-Fixed: 2055218
Change-Id: Ie676069992d041028158ebf0b7e283e1828b5c9d
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>
diff --git a/drivers/media/platform/msm/vidc/hfi_response_handler.c b/drivers/media/platform/msm/vidc/hfi_response_handler.c
index f678f56..83750a5 100644
--- a/drivers/media/platform/msm/vidc/hfi_response_handler.c
+++ b/drivers/media/platform/msm/vidc/hfi_response_handler.c
@@ -1074,15 +1074,6 @@ static void hfi_process_sess_get_prop_buf_req(
 	}
 
 	while (req_bytes) {
-		if (hfi_buf_req->buffer_size &&
-			hfi_buf_req->buffer_count_min > hfi_buf_req->
-			buffer_count_actual)
-			dprintk(VIDC_WARN,
-				"Bad buffer requirements for %#x: min %d, actual %d\n",
-				hfi_buf_req->buffer_type,
-				hfi_buf_req->buffer_count_min,
-				hfi_buf_req->buffer_count_actual);
-
 		dprintk(VIDC_DBG, "got buffer requirements for: %d\n",
 					hfi_buf_req->buffer_type);
 		switch (hfi_buf_req->buffer_type) {
diff --git a/drivers/media/platform/msm/vidc/msm_vdec.c b/drivers/media/platform/msm/vidc/msm_vdec.c
index 053d748..4cdd326 100644
--- a/drivers/media/platform/msm/vidc/msm_vdec.c
+++ b/drivers/media/platform/msm/vidc/msm_vdec.c
@@ -20,7 +20,10 @@
 #include "msm_vidc_clocks.h"
 
 #define MSM_VDEC_DVC_NAME "msm_vdec_8974"
+#define MIN_NUM_THUMBNAIL_MODE_OUTPUT_BUFFERS MIN_NUM_OUTPUT_BUFFERS
 #define MIN_NUM_THUMBNAIL_MODE_CAPTURE_BUFFERS MIN_NUM_CAPTURE_BUFFERS
+#define MIN_NUM_DEC_OUTPUT_BUFFERS 4
+#define MIN_NUM_DEC_CAPTURE_BUFFERS 4
 #define DEFAULT_VIDEO_CONCEAL_COLOR_BLACK 0x8010
 #define MB_SIZE_IN_PIXEL (16 * 16)
 #define OPERATING_FRAME_RATE_STEP (1 << 16)
@@ -544,7 +547,6 @@ int msm_vdec_s_fmt(struct msm_vidc_inst *inst, struct v4l2_format *f)
 				f->fmt.pix_mp.plane_fmt[i].sizeimage;
 		}
 
-		rc = msm_comm_try_get_bufreqs(inst);
 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 
 		fmt = msm_comm_get_pixel_fmt_fourcc(vdec_formats,
@@ -598,8 +600,6 @@ int msm_vdec_s_fmt(struct msm_vidc_inst *inst, struct v4l2_format *f)
 			inst->bufq[OUTPUT_PORT].plane_sizes[i] =
 				f->fmt.pix_mp.plane_fmt[i].sizeimage;
 		}
-
-		rc = msm_comm_try_get_bufreqs(inst);
 	}
 err_invalid_fmt:
 	return rc;
@@ -675,6 +675,19 @@ int msm_vdec_inst_init(struct msm_vidc_inst *inst)
 	memcpy(&inst->fmts[fmt->type], fmt,
 			sizeof(struct msm_vidc_format));
 
+	inst->buff_req.buffer[1].buffer_type = HAL_BUFFER_INPUT;
+	inst->buff_req.buffer[1].buffer_count_min_host =
+	inst->buff_req.buffer[1].buffer_count_actual =
+		MIN_NUM_DEC_OUTPUT_BUFFERS;
+	inst->buff_req.buffer[2].buffer_type = HAL_BUFFER_OUTPUT;
+	inst->buff_req.buffer[2].buffer_count_min_host =
+	inst->buff_req.buffer[2].buffer_count_actual =
+		MIN_NUM_DEC_CAPTURE_BUFFERS;
+	inst->buff_req.buffer[3].buffer_type = HAL_BUFFER_OUTPUT2;
+	inst->buff_req.buffer[3].buffer_count_min_host =
+	inst->buff_req.buffer[3].buffer_count_actual =
+		MIN_NUM_DEC_CAPTURE_BUFFERS;
+
 	/* By default, initialize OUTPUT port to H264 decoder */
 	fmt = msm_comm_get_pixel_fmt_fourcc(vdec_formats,
 		ARRAY_SIZE(vdec_formats), V4L2_PIX_FMT_H264,
@@ -716,6 +729,7 @@ int msm_vdec_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 	struct v4l2_ctrl *temp_ctrl = NULL;
 	struct hal_profile_level profile_level;
 	struct hal_frame_size frame_sz;
+	struct hal_buffer_requirements *bufreq;
 
 	if (!inst || !inst->core || !inst->core->device) {
 		dprintk(VIDC_ERR, "%s invalid parameters\n", __func__);
@@ -777,6 +791,59 @@ int msm_vdec_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 		hal_property.enable = ctrl->val;
 		pdata = &hal_property;
 		msm_dcvs_try_enable(inst);
+
+		bufreq = get_buff_req_buffer(inst,
+				HAL_BUFFER_INPUT);
+		if (!bufreq) {
+			dprintk(VIDC_ERR,
+					"Failed : No buffer requirements : %x\n",
+					HAL_BUFFER_OUTPUT);
+			return -EINVAL;
+		}
+		bufreq->buffer_count_min =
+			MIN_NUM_THUMBNAIL_MODE_OUTPUT_BUFFERS;
+
+		if (msm_comm_get_stream_output_mode(inst) ==
+				HAL_VIDEO_DECODER_SECONDARY) {
+
+			bufreq = get_buff_req_buffer(inst,
+					HAL_BUFFER_OUTPUT);
+			if (!bufreq) {
+				dprintk(VIDC_ERR,
+					"Failed : No buffer requirements: %x\n",
+						HAL_BUFFER_OUTPUT);
+				return -EINVAL;
+			}
+
+			bufreq->buffer_count_min =
+				MIN_NUM_THUMBNAIL_MODE_CAPTURE_BUFFERS;
+
+			bufreq = get_buff_req_buffer(inst,
+					HAL_BUFFER_OUTPUT2);
+			if (!bufreq) {
+				dprintk(VIDC_ERR,
+					"Failed : No buffer requirements: %x\n",
+						HAL_BUFFER_OUTPUT2);
+				return -EINVAL;
+			}
+
+			bufreq->buffer_count_min =
+				MIN_NUM_THUMBNAIL_MODE_CAPTURE_BUFFERS;
+		} else {
+
+			bufreq = get_buff_req_buffer(inst,
+					HAL_BUFFER_OUTPUT);
+			if (!bufreq) {
+				dprintk(VIDC_ERR,
+					"Failed : No buffer requirements: %x\n",
+						HAL_BUFFER_OUTPUT);
+				return -EINVAL;
+			}
+			bufreq->buffer_count_min =
+				MIN_NUM_THUMBNAIL_MODE_CAPTURE_BUFFERS;
+
+		}
+
 		break;
 	case V4L2_CID_MPEG_VIDC_VIDEO_SECURE:
 		property_id = HAL_PARAM_SECURE;
@@ -896,7 +963,6 @@ int msm_vdec_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 					"Failed setting OUTPUT2 size : %d\n",
 					rc);
 
-			rc = msm_comm_try_get_bufreqs(inst);
 			break;
 		default:
 			dprintk(VIDC_ERR,
@@ -920,7 +986,6 @@ int msm_vdec_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 				V4L2_CID_MPEG_VIDEO_H264_LEVEL,
 				temp_ctrl->val);
 		pdata = &profile_level;
-		rc = msm_comm_try_get_bufreqs(inst);
 		break;
 	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
 		temp_ctrl = TRY_GET_CTRL(V4L2_CID_MPEG_VIDEO_H264_PROFILE);
@@ -932,7 +997,6 @@ int msm_vdec_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 				V4L2_CID_MPEG_VIDEO_H264_PROFILE,
 				temp_ctrl->val);
 		pdata = &profile_level;
-		rc = msm_comm_try_get_bufreqs(inst);
 		break;
 	case V4L2_CID_MPEG_VIDC_VIDEO_BUFFER_SIZE_LIMIT:
 		dprintk(VIDC_DBG,
@@ -1050,11 +1114,6 @@ int msm_vdec_s_ext_ctrl(struct msm_vidc_inst *inst,
 							__func__, rc);
 						break;
 					}
-					rc = msm_comm_try_get_bufreqs(inst);
-					if (rc)
-						dprintk(VIDC_ERR,
-							"%s Failed to get buffer requirements : %d\n",
-							__func__, rc);
 				}
 				break;
 			default:
diff --git a/drivers/media/platform/msm/vidc/msm_venc.c b/drivers/media/platform/msm/vidc/msm_venc.c
index d44684e..ddb81ce 100644
--- a/drivers/media/platform/msm/vidc/msm_venc.c
+++ b/drivers/media/platform/msm/vidc/msm_venc.c
@@ -39,6 +39,8 @@
 #define MIN_TIME_RESOLUTION 1
 #define MAX_TIME_RESOLUTION 0xFFFFFF
 #define DEFAULT_TIME_RESOLUTION 0x7530
+#define MIN_NUM_ENC_OUTPUT_BUFFERS 4
+#define MIN_NUM_ENC_CAPTURE_BUFFERS 5
 
 /*
  * Default 601 to 709 conversion coefficients for resolution: 176x144 negative
@@ -2124,6 +2126,15 @@ int msm_venc_inst_init(struct msm_vidc_inst *inst)
 	inst->bufq[CAPTURE_PORT].num_planes = 1;
 	inst->clk_data.operating_rate = 0;
 
+	inst->buff_req.buffer[1].buffer_type = HAL_BUFFER_INPUT;
+	inst->buff_req.buffer[1].buffer_count_min_host =
+	inst->buff_req.buffer[1].buffer_count_actual =
+		MIN_NUM_ENC_OUTPUT_BUFFERS;
+	inst->buff_req.buffer[2].buffer_type = HAL_BUFFER_OUTPUT;
+	inst->buff_req.buffer[2].buffer_count_min_host =
+	inst->buff_req.buffer[2].buffer_count_actual =
+		MIN_NUM_ENC_CAPTURE_BUFFERS;
+
 	/* By default, initialize OUTPUT port to UBWC YUV format */
 	fmt = msm_comm_get_pixel_fmt_fourcc(venc_formats,
 		ARRAY_SIZE(venc_formats), V4L2_PIX_FMT_NV12_UBWC,
diff --git a/drivers/media/platform/msm/vidc/msm_vidc.c b/drivers/media/platform/msm/vidc/msm_vidc.c
index 2e952a3..77d7cf5 100644
--- a/drivers/media/platform/msm/vidc/msm_vidc.c
+++ b/drivers/media/platform/msm/vidc/msm_vidc.c
@@ -1836,7 +1836,7 @@ static int msm_vidc_get_count(struct msm_vidc_inst *inst,
 	struct v4l2_ctrl *ctrl)
 {
 	int rc = 0;
-	struct hal_buffer_requirements *bufreq, *newreq;
+	struct hal_buffer_requirements *bufreq;
 	enum hal_buffer buffer_type;
 
 	if (ctrl->id == V4L2_CID_MIN_BUFFERS_FOR_OUTPUT) {
@@ -1885,16 +1885,7 @@ static int msm_vidc_get_count(struct msm_vidc_inst *inst,
 
 
 		if (inst->in_reconfig) {
-			rc = msm_comm_try_get_bufreqs(inst);
-			newreq = get_buff_req_buffer(inst,
-				buffer_type);
-			if (!newreq) {
-				dprintk(VIDC_ERR,
-					"Failed to find new bufreqs = %d\n",
-					buffer_type);
-				return 0;
-			}
-			ctrl->val = newreq->buffer_count_min;
+			ctrl->val = bufreq->buffer_count_min;
 		}
 		if (inst->session_type == MSM_VIDC_DECODER &&
 				!inst->in_reconfig &&
@@ -1962,9 +1953,6 @@ static int try_get_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 		break;
 
 	case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
-		if (inst->in_reconfig)
-			msm_comm_try_get_bufreqs(inst);
-
 		buffer_type = msm_comm_get_hal_output_buffer(inst);
 		bufreq = get_buff_req_buffer(inst,
 			buffer_type);
@@ -1977,7 +1965,6 @@ static int try_get_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
 		ctrl->val = bufreq->buffer_count_min_host;
 		break;
 	case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
-		msm_comm_try_get_bufreqs(inst);
 		bufreq = get_buff_req_buffer(inst, HAL_BUFFER_INPUT);
 		if (!bufreq) {
 			dprintk(VIDC_ERR,
diff --git a/drivers/media/platform/msm/vidc/msm_vidc_common.c b/drivers/media/platform/msm/vidc/msm_vidc_common.c
index fe61e6f..9bd0e74 100644
--- a/drivers/media/platform/msm/vidc/msm_vidc_common.c
+++ b/drivers/media/platform/msm/vidc/msm_vidc_common.c
@@ -36,6 +36,7 @@
 #define L_MODE V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY
 
 #define MAX_SUPPORTED_INSTANCES 16
+static int msm_vidc_update_host_buff_counts(struct msm_vidc_inst *inst);
 
 const char *const mpeg_video_vidc_extradata[] = {
 	"Extradata none",
@@ -1450,6 +1451,7 @@ static void handle_event_change(enum hal_command_response cmd, void *data)
 	int rc = 0;
 	struct hfi_device *hdev;
 	u32 *ptr = NULL;
+	struct hal_buffer_requirements *bufreq;
 
 	if (!event_notify) {
 		dprintk(VIDC_WARN, "Got an empty event from hfi\n");
@@ -1594,6 +1596,46 @@ static void handle_event_change(enum hal_command_response cmd, void *data)
 	inst->in_reconfig = true;
 	inst->reconfig_height = event_notify->height;
 	inst->reconfig_width = event_notify->width;
+
+	if (msm_comm_get_stream_output_mode(inst) ==
+			HAL_VIDEO_DECODER_SECONDARY) {
+
+		bufreq = get_buff_req_buffer(inst,
+				HAL_BUFFER_OUTPUT);
+		if (!bufreq) {
+			dprintk(VIDC_ERR,
+				"Failed : No buffer requirements : %x\n",
+					HAL_BUFFER_OUTPUT);
+			return;
+		}
+
+		bufreq->buffer_count_min = event_notify->capture_buf_count;
+
+		bufreq = get_buff_req_buffer(inst,
+				HAL_BUFFER_OUTPUT2);
+		if (!bufreq) {
+			dprintk(VIDC_ERR,
+				"Failed : No buffer requirements : %x\n",
+					HAL_BUFFER_OUTPUT2);
+			return;
+		}
+
+		bufreq->buffer_count_min = event_notify->capture_buf_count;
+	} else {
+
+		bufreq = get_buff_req_buffer(inst,
+				HAL_BUFFER_OUTPUT);
+		if (!bufreq) {
+			dprintk(VIDC_ERR,
+				"Failed : No buffer requirements : %x\n",
+					HAL_BUFFER_OUTPUT);
+			return;
+		}
+		bufreq->buffer_count_min = event_notify->capture_buf_count;
+
+	}
+
+	msm_vidc_update_host_buff_counts(inst);
 	mutex_unlock(&inst->lock);
 
 	if (event == V4L2_EVENT_SEQ_CHANGED_INSUFFICIENT) {
@@ -4121,7 +4163,7 @@ static int msm_vidc_update_host_buff_counts(struct msm_vidc_inst *inst)
 
 		/* For DPB buffers, no need to add Extra buffers */
 
-		bufreq->buffer_count_actual = bufreq->buffer_count_min_host =
+		bufreq->buffer_count_min_host =	bufreq->buffer_count_actual =
 			bufreq->buffer_count_min;
 
 		bufreq = get_buff_req_buffer(inst,
@@ -4136,7 +4178,7 @@ static int msm_vidc_update_host_buff_counts(struct msm_vidc_inst *inst)
 		extra_buffers = msm_vidc_get_extra_buff_count(inst,
 			HAL_BUFFER_OUTPUT);
 
-		bufreq->buffer_count_min_host =
+		bufreq->buffer_count_min_host =	bufreq->buffer_count_actual =
 			bufreq->buffer_count_min + extra_buffers;
 	} else {
 
@@ -4152,7 +4194,7 @@ static int msm_vidc_update_host_buff_counts(struct msm_vidc_inst *inst)
 		extra_buffers = msm_vidc_get_extra_buff_count(inst,
 			HAL_BUFFER_OUTPUT);
 
-		bufreq->buffer_count_actual = bufreq->buffer_count_min_host =
+		bufreq->buffer_count_min_host =	bufreq->buffer_count_actual =
 			bufreq->buffer_count_min + extra_buffers;
 	}