1 files changed, 0 insertions, 361 deletions
diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
deleted file mode 100644
index f3073d1e7f42..000000000000
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
+++ /dev/null
@@ -1,361 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2021 MediaTek Inc.
- * Author: Yunfei Dong <yunfei.dong@mediatek.com>
- */
-
-#include <linux/freezer.h>
-#include <linux/interrupt.h>
-#include <linux/kthread.h>
-
-#include "mtk_vcodec_dec_pm.h"
-#include "mtk_vcodec_drv.h"
-#include "vdec_msg_queue.h"
-
-#define VDEC_MSG_QUEUE_TIMEOUT_MS 1500
-
-/* the size used to store lat slice header information */
-#define VDEC_LAT_SLICE_HEADER_SZ    (640 * SZ_1K)
-
-/* the size used to store avc error information */
-#define VDEC_ERR_MAP_SZ_AVC         (17 * SZ_1K)
-
-/* core will read the trans buffer which decoded by lat to decode again.
- * The trans buffer size of FHD and 4K bitstreams are different.
- */
-static int vde_msg_queue_get_trans_size(int width, int height)
-{
-	if (width > 1920 || height > 1088)
-		return 30 * SZ_1M;
-	else
-		return 6 * SZ_1M;
-}
-
-void vdec_msg_queue_init_ctx(struct vdec_msg_queue_ctx *ctx, int hardware_index)
-{
-	init_waitqueue_head(&ctx->ready_to_use);
-	INIT_LIST_HEAD(&ctx->ready_queue);
-	spin_lock_init(&ctx->ready_lock);
-	ctx->ready_num = 0;
-	ctx->hardware_index = hardware_index;
-}
-
-static struct list_head *vdec_get_buf_list(int hardware_index, struct vdec_lat_buf *buf)
-{
-	switch (hardware_index) {
-	case MTK_VDEC_CORE:
-		return &buf->core_list;
-	case MTK_VDEC_LAT0:
-		return &buf->lat_list;
-	default:
-		return NULL;
-	}
-}
-
-static void vdec_msg_queue_inc(struct vdec_msg_queue *msg_queue, int hardware_index)
-{
-	if (hardware_index == MTK_VDEC_CORE)
-		atomic_inc(&msg_queue->core_list_cnt);
-	else
-		atomic_inc(&msg_queue->lat_list_cnt);
-}
-
-static void vdec_msg_queue_dec(struct vdec_msg_queue *msg_queue, int hardware_index)
-{
-	if (hardware_index == MTK_VDEC_CORE)
-		atomic_dec(&msg_queue->core_list_cnt);
-	else
-		atomic_dec(&msg_queue->lat_list_cnt);
-}
-
-int vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *msg_ctx, struct vdec_lat_buf *buf)
-{
-	struct list_head *head;
-	int status;
-
-	head = vdec_get_buf_list(msg_ctx->hardware_index, buf);
-	if (!head) {
-		mtk_v4l2_err("fail to qbuf: %d", msg_ctx->hardware_index);
-		return -EINVAL;
-	}
-
-	spin_lock(&msg_ctx->ready_lock);
-	list_add_tail(head, &msg_ctx->ready_queue);
-	msg_ctx->ready_num++;
-
-	vdec_msg_queue_inc(&buf->ctx->msg_queue, msg_ctx->hardware_index);
-	if (msg_ctx->hardware_index != MTK_VDEC_CORE) {
-		wake_up_all(&msg_ctx->ready_to_use);
-	} else {
-		if (buf->ctx->msg_queue.core_work_cnt <
-			atomic_read(&buf->ctx->msg_queue.core_list_cnt)) {
-			status = queue_work(buf->ctx->dev->core_workqueue,
-					    &buf->ctx->msg_queue.core_work);
-			if (status)
-				buf->ctx->msg_queue.core_work_cnt++;
-		}
-	}
-
-	mtk_v4l2_debug(3, "enqueue buf type: %d addr: 0x%p num: %d",
-		       msg_ctx->hardware_index, buf, msg_ctx->ready_num);
-	spin_unlock(&msg_ctx->ready_lock);
-
-	return 0;
-}
-
-static bool vdec_msg_queue_wait_event(struct vdec_msg_queue_ctx *msg_ctx)
-{
-	int ret;
-
-	ret = wait_event_timeout(msg_ctx->ready_to_use,
-				 !list_empty(&msg_ctx->ready_queue),
-				 msecs_to_jiffies(VDEC_MSG_QUEUE_TIMEOUT_MS));
-	if (!ret)
-		return false;
-
-	return true;
-}
-
-struct vdec_lat_buf *vdec_msg_queue_dqbuf(struct vdec_msg_queue_ctx *msg_ctx)
-{
-	struct vdec_lat_buf *buf;
-	struct list_head *head;
-	int ret;
-
-	spin_lock(&msg_ctx->ready_lock);
-	if (list_empty(&msg_ctx->ready_queue)) {
-		mtk_v4l2_debug(3, "queue is NULL, type:%d num: %d",
-			       msg_ctx->hardware_index, msg_ctx->ready_num);
-		spin_unlock(&msg_ctx->ready_lock);
-
-		if (msg_ctx->hardware_index == MTK_VDEC_CORE)
-			return NULL;
-
-		ret = vdec_msg_queue_wait_event(msg_ctx);
-		if (!ret)
-			return NULL;
-		spin_lock(&msg_ctx->ready_lock);
-	}
-
-	if (msg_ctx->hardware_index == MTK_VDEC_CORE)
-		buf = list_first_entry(&msg_ctx->ready_queue,
-				       struct vdec_lat_buf, core_list);
-	else
-		buf = list_first_entry(&msg_ctx->ready_queue,
-				       struct vdec_lat_buf, lat_list);
-
-	head = vdec_get_buf_list(msg_ctx->hardware_index, buf);
-	if (!head) {
-		spin_unlock(&msg_ctx->ready_lock);
-		mtk_v4l2_err("fail to dqbuf: %d", msg_ctx->hardware_index);
-		return NULL;
-	}
-	list_del(head);
-	vdec_msg_queue_dec(&buf->ctx->msg_queue, msg_ctx->hardware_index);
-
-	msg_ctx->ready_num--;
-	mtk_v4l2_debug(3, "dqueue buf type:%d addr: 0x%p num: %d",
-		       msg_ctx->hardware_index, buf, msg_ctx->ready_num);
-	spin_unlock(&msg_ctx->ready_lock);
-
-	return buf;
-}
-
-void vdec_msg_queue_update_ube_rptr(struct vdec_msg_queue *msg_queue, uint64_t ube_rptr)
-{
-	spin_lock(&msg_queue->lat_ctx.ready_lock);
-	msg_queue->wdma_rptr_addr = ube_rptr;
-	mtk_v4l2_debug(3, "update ube rprt (0x%llx)", ube_rptr);
-	spin_unlock(&msg_queue->lat_ctx.ready_lock);
-}
-
-void vdec_msg_queue_update_ube_wptr(struct vdec_msg_queue *msg_queue, uint64_t ube_wptr)
-{
-	spin_lock(&msg_queue->lat_ctx.ready_lock);
-	msg_queue->wdma_wptr_addr = ube_wptr;
-	mtk_v4l2_debug(3, "update ube wprt: (0x%llx 0x%llx) offset: 0x%llx",
-		       msg_queue->wdma_rptr_addr, msg_queue->wdma_wptr_addr,
-		       ube_wptr);
-	spin_unlock(&msg_queue->lat_ctx.ready_lock);
-}
-
-bool vdec_msg_queue_wait_lat_buf_full(struct vdec_msg_queue *msg_queue)
-{
-	struct vdec_lat_buf *buf, *tmp;
-	struct list_head *list_core[3];
-	struct vdec_msg_queue_ctx *core_ctx;
-	int ret, i, in_core_count = 0, count = 0;
-	long timeout_jiff;
-
-	core_ctx = &msg_queue->ctx->dev->msg_queue_core_ctx;
-	spin_lock(&core_ctx->ready_lock);
-	list_for_each_entry_safe(buf, tmp, &core_ctx->ready_queue, core_list) {
-		if (buf && buf->ctx == msg_queue->ctx) {
-			list_core[in_core_count++] = &buf->core_list;
-			list_del(&buf->core_list);
-		}
-	}
-
-	for (i = 0; i < in_core_count; i++) {
-		list_add(list_core[in_core_count - (1 + i)], &core_ctx->ready_queue);
-		queue_work(msg_queue->ctx->dev->core_workqueue, &msg_queue->core_work);
-	}
-	spin_unlock(&core_ctx->ready_lock);
-
-	timeout_jiff = msecs_to_jiffies(1000 * (NUM_BUFFER_COUNT + 2));
-	ret = wait_event_timeout(msg_queue->ctx->msg_queue.core_dec_done,
-				 msg_queue->lat_ctx.ready_num == NUM_BUFFER_COUNT,
-				 timeout_jiff);
-	if (ret) {
-		mtk_v4l2_debug(3, "success to get lat buf: %d",
-			       msg_queue->lat_ctx.ready_num);
-		return true;
-	}
-
-	spin_lock(&core_ctx->ready_lock);
-	list_for_each_entry_safe(buf, tmp, &core_ctx->ready_queue, core_list) {
-		if (buf && buf->ctx == msg_queue->ctx) {
-			count++;
-			list_del(&buf->core_list);
-		}
-	}
-	spin_unlock(&core_ctx->ready_lock);
-
-	mtk_v4l2_err("failed with lat buf isn't full: list(%d %d) count:%d",
-		     atomic_read(&msg_queue->lat_list_cnt),
-		     atomic_read(&msg_queue->core_list_cnt), count);
-
-	return false;
-}
-
-void vdec_msg_queue_deinit(struct vdec_msg_queue *msg_queue,
-			   struct mtk_vcodec_ctx *ctx)
-{
-	struct vdec_lat_buf *lat_buf;
-	struct mtk_vcodec_mem *mem;
-	int i;
-
-	mem = &msg_queue->wdma_addr;
-	if (mem->va)
-		mtk_vcodec_mem_free(ctx, mem);
-	for (i = 0; i < NUM_BUFFER_COUNT; i++) {
-		lat_buf = &msg_queue->lat_buf[i];
-
-		mem = &lat_buf->wdma_err_addr;
-		if (mem->va)
-			mtk_vcodec_mem_free(ctx, mem);
-
-		mem = &lat_buf->slice_bc_addr;
-		if (mem->va)
-			mtk_vcodec_mem_free(ctx, mem);
-
-		kfree(lat_buf->private_data);
-	}
-}
-
-static void vdec_msg_queue_core_work(struct work_struct *work)
-{
-	struct vdec_msg_queue *msg_queue =
-		container_of(work, struct vdec_msg_queue, core_work);
-	struct mtk_vcodec_ctx *ctx =
-		container_of(msg_queue, struct mtk_vcodec_ctx, msg_queue);
-	struct mtk_vcodec_dev *dev = ctx->dev;
-	struct vdec_lat_buf *lat_buf;
-	int status;
-
-	lat_buf = vdec_msg_queue_dqbuf(&dev->msg_queue_core_ctx);
-	if (!lat_buf)
-		return;
-
-	ctx = lat_buf->ctx;
-	mtk_vcodec_dec_enable_hardware(ctx, MTK_VDEC_CORE);
-	mtk_vcodec_set_curr_ctx(dev, ctx, MTK_VDEC_CORE);
-
-	lat_buf->core_decode(lat_buf);
-
-	mtk_vcodec_set_curr_ctx(dev, NULL, MTK_VDEC_CORE);
-	mtk_vcodec_dec_disable_hardware(ctx, MTK_VDEC_CORE);
-	vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf);
-
-	wake_up_all(&ctx->msg_queue.core_dec_done);
-	spin_lock(&dev->msg_queue_core_ctx.ready_lock);
-	lat_buf->ctx->msg_queue.core_work_cnt--;
-
-	if (lat_buf->ctx->msg_queue.core_work_cnt <
-		atomic_read(&lat_buf->ctx->msg_queue.core_list_cnt)) {
-		status = queue_work(lat_buf->ctx->dev->core_workqueue,
-				    &lat_buf->ctx->msg_queue.core_work);
-		if (status)
-			lat_buf->ctx->msg_queue.core_work_cnt++;
-	}
-	spin_unlock(&dev->msg_queue_core_ctx.ready_lock);
-}
-
-int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,
-			struct mtk_vcodec_ctx *ctx, core_decode_cb_t core_decode,
-			int private_size)
-{
-	struct vdec_lat_buf *lat_buf;
-	int i, err;
-
-	/* already init msg queue */
-	if (msg_queue->wdma_addr.size)
-		return 0;
-
-	msg_queue->ctx = ctx;
-	msg_queue->core_work_cnt = 0;
-	vdec_msg_queue_init_ctx(&msg_queue->lat_ctx, MTK_VDEC_LAT0);
-	INIT_WORK(&msg_queue->core_work, vdec_msg_queue_core_work);
-
-	atomic_set(&msg_queue->lat_list_cnt, 0);
-	atomic_set(&msg_queue->core_list_cnt, 0);
-	init_waitqueue_head(&msg_queue->core_dec_done);
-
-	msg_queue->wdma_addr.size =
-		vde_msg_queue_get_trans_size(ctx->picinfo.buf_w,
-					     ctx->picinfo.buf_h);
-	err = mtk_vcodec_mem_alloc(ctx, &msg_queue->wdma_addr);
-	if (err) {
-		mtk_v4l2_err("failed to allocate wdma_addr buf");
-		return -ENOMEM;
-	}
-	msg_queue->wdma_rptr_addr = msg_queue->wdma_addr.dma_addr;
-	msg_queue->wdma_wptr_addr = msg_queue->wdma_addr.dma_addr;
-
-	for (i = 0; i < NUM_BUFFER_COUNT; i++) {
-		lat_buf = &msg_queue->lat_buf[i];
-
-		lat_buf->wdma_err_addr.size = VDEC_ERR_MAP_SZ_AVC;
-		err = mtk_vcodec_mem_alloc(ctx, &lat_buf->wdma_err_addr);
-		if (err) {
-			mtk_v4l2_err("failed to allocate wdma_err_addr buf[%d]", i);
-			goto mem_alloc_err;
-		}
-
-		lat_buf->slice_bc_addr.size = VDEC_LAT_SLICE_HEADER_SZ;
-		err = mtk_vcodec_mem_alloc(ctx, &lat_buf->slice_bc_addr);
-		if (err) {
-			mtk_v4l2_err("failed to allocate wdma_addr buf[%d]", i);
-			goto mem_alloc_err;
-		}
-
-		lat_buf->private_data = kzalloc(private_size, GFP_KERNEL);
-		if (!lat_buf->private_data) {
-			err = -ENOMEM;
-			goto mem_alloc_err;
-		}
-
-		lat_buf->ctx = ctx;
-		lat_buf->core_decode = core_decode;
-		err = vdec_msg_queue_qbuf(&msg_queue->lat_ctx, lat_buf);
-		if (err) {
-			mtk_v4l2_err("failed to qbuf buf[%d]", i);
-			goto mem_alloc_err;
-		}
-	}
-	return 0;
-
-mem_alloc_err:
-	vdec_msg_queue_deinit(msg_queue, ctx);
-	return err;
-}