![Andrzej Hajda](/assets/img/avatar_default.png)
On ipp subsystem removal list of ipp drivers is traversed and their members are deleted. To do it properly safe version of list_for_each* should be used. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
1776 lines
42 KiB
C
1776 lines
42 KiB
C
/*
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* Copyright (C) 2012 Samsung Electronics Co.Ltd
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* Authors:
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* Eunchul Kim <chulspro.kim@samsung.com>
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* Jinyoung Jeon <jy0.jeon@samsung.com>
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* Sangmin Lee <lsmin.lee@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/clk.h>
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#include <linux/pm_runtime.h>
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#include <drm/drmP.h>
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#include <drm/exynos_drm.h>
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#include "exynos_drm_drv.h"
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#include "exynos_drm_gem.h"
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#include "exynos_drm_ipp.h"
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#include "exynos_drm_iommu.h"
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/*
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* IPP stands for Image Post Processing and
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* supports image scaler/rotator and input/output DMA operations.
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* using FIMC, GSC, Rotator, so on.
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* IPP is integration device driver of same attribute h/w
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*/
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/*
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* TODO
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* 1. expand command control id.
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* 2. integrate property and config.
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* 3. removed send_event id check routine.
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* 4. compare send_event id if needed.
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* 5. free subdrv_remove notifier callback list if needed.
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* 6. need to check subdrv_open about multi-open.
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* 7. need to power_on implement power and sysmmu ctrl.
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*/
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#define get_ipp_context(dev) platform_get_drvdata(to_platform_device(dev))
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#define ipp_is_m2m_cmd(c) (c == IPP_CMD_M2M)
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/* platform device pointer for ipp device. */
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static struct platform_device *exynos_drm_ipp_pdev;
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/*
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* A structure of event.
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*
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* @base: base of event.
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* @event: ipp event.
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*/
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struct drm_exynos_ipp_send_event {
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struct drm_pending_event base;
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struct drm_exynos_ipp_event event;
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};
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/*
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* A structure of memory node.
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*
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* @list: list head to memory queue information.
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* @ops_id: id of operations.
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* @prop_id: id of property.
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* @buf_id: id of buffer.
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* @buf_info: gem objects and dma address, size.
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* @filp: a pointer to drm_file.
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*/
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struct drm_exynos_ipp_mem_node {
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struct list_head list;
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enum drm_exynos_ops_id ops_id;
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u32 prop_id;
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u32 buf_id;
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struct drm_exynos_ipp_buf_info buf_info;
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};
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/*
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* A structure of ipp context.
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*
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* @subdrv: prepare initialization using subdrv.
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* @ipp_lock: lock for synchronization of access to ipp_idr.
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* @prop_lock: lock for synchronization of access to prop_idr.
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* @ipp_idr: ipp driver idr.
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* @prop_idr: property idr.
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* @event_workq: event work queue.
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* @cmd_workq: command work queue.
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*/
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struct ipp_context {
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struct exynos_drm_subdrv subdrv;
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struct mutex ipp_lock;
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struct mutex prop_lock;
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struct idr ipp_idr;
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struct idr prop_idr;
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struct workqueue_struct *event_workq;
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struct workqueue_struct *cmd_workq;
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};
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static LIST_HEAD(exynos_drm_ippdrv_list);
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static DEFINE_MUTEX(exynos_drm_ippdrv_lock);
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static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list);
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int exynos_platform_device_ipp_register(void)
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{
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struct platform_device *pdev;
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if (exynos_drm_ipp_pdev)
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return -EEXIST;
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pdev = platform_device_register_simple("exynos-drm-ipp", -1, NULL, 0);
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if (IS_ERR(pdev))
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return PTR_ERR(pdev);
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exynos_drm_ipp_pdev = pdev;
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return 0;
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}
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void exynos_platform_device_ipp_unregister(void)
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{
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if (exynos_drm_ipp_pdev) {
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platform_device_unregister(exynos_drm_ipp_pdev);
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exynos_drm_ipp_pdev = NULL;
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}
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}
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int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv)
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{
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mutex_lock(&exynos_drm_ippdrv_lock);
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list_add_tail(&ippdrv->drv_list, &exynos_drm_ippdrv_list);
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mutex_unlock(&exynos_drm_ippdrv_lock);
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return 0;
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}
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int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv)
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{
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mutex_lock(&exynos_drm_ippdrv_lock);
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list_del(&ippdrv->drv_list);
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mutex_unlock(&exynos_drm_ippdrv_lock);
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return 0;
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}
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static int ipp_create_id(struct idr *id_idr, struct mutex *lock, void *obj)
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{
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int ret;
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mutex_lock(lock);
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ret = idr_alloc(id_idr, obj, 1, 0, GFP_KERNEL);
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mutex_unlock(lock);
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return ret;
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}
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static void ipp_remove_id(struct idr *id_idr, struct mutex *lock, u32 id)
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{
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mutex_lock(lock);
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idr_remove(id_idr, id);
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mutex_unlock(lock);
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}
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static void *ipp_find_obj(struct idr *id_idr, struct mutex *lock, u32 id)
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{
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void *obj;
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mutex_lock(lock);
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obj = idr_find(id_idr, id);
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mutex_unlock(lock);
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return obj;
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}
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static int ipp_check_driver(struct exynos_drm_ippdrv *ippdrv,
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struct drm_exynos_ipp_property *property)
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{
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if (ippdrv->dedicated || (!ipp_is_m2m_cmd(property->cmd) &&
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!pm_runtime_suspended(ippdrv->dev)))
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return -EBUSY;
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if (ippdrv->check_property &&
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ippdrv->check_property(ippdrv->dev, property))
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return -EINVAL;
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return 0;
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}
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static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx,
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struct drm_exynos_ipp_property *property)
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{
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struct exynos_drm_ippdrv *ippdrv;
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u32 ipp_id = property->ipp_id;
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int ret;
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if (ipp_id) {
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ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, ipp_id);
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if (!ippdrv) {
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DRM_DEBUG("ipp%d driver not found\n", ipp_id);
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return ERR_PTR(-ENODEV);
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}
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ret = ipp_check_driver(ippdrv, property);
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if (ret < 0) {
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DRM_DEBUG("ipp%d driver check error %d\n", ipp_id, ret);
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return ERR_PTR(ret);
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}
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return ippdrv;
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} else {
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list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
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ret = ipp_check_driver(ippdrv, property);
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if (ret == 0)
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return ippdrv;
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}
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DRM_DEBUG("cannot find driver suitable for given property.\n");
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}
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return ERR_PTR(-ENODEV);
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}
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static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
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{
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struct exynos_drm_ippdrv *ippdrv;
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struct drm_exynos_ipp_cmd_node *c_node;
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int count = 0;
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DRM_DEBUG_KMS("prop_id[%d]\n", prop_id);
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/*
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* This case is search ipp driver by prop_id handle.
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* sometimes, ipp subsystem find driver by prop_id.
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* e.g PAUSE state, queue buf, command control.
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*/
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list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
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DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n", count++, (int)ippdrv);
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mutex_lock(&ippdrv->cmd_lock);
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list_for_each_entry(c_node, &ippdrv->cmd_list, list) {
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if (c_node->property.prop_id == prop_id) {
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mutex_unlock(&ippdrv->cmd_lock);
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return ippdrv;
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}
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}
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mutex_unlock(&ippdrv->cmd_lock);
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}
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return ERR_PTR(-ENODEV);
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}
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int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data,
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struct drm_file *file)
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{
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struct drm_exynos_file_private *file_priv = file->driver_priv;
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struct device *dev = file_priv->ipp_dev;
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struct ipp_context *ctx = get_ipp_context(dev);
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struct drm_exynos_ipp_prop_list *prop_list = data;
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struct exynos_drm_ippdrv *ippdrv;
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int count = 0;
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if (!ctx) {
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DRM_ERROR("invalid context.\n");
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return -EINVAL;
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}
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if (!prop_list) {
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DRM_ERROR("invalid property parameter.\n");
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return -EINVAL;
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}
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DRM_DEBUG_KMS("ipp_id[%d]\n", prop_list->ipp_id);
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if (!prop_list->ipp_id) {
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list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list)
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count++;
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/*
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* Supports ippdrv list count for user application.
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* First step user application getting ippdrv count.
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* and second step getting ippdrv capability using ipp_id.
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*/
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prop_list->count = count;
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} else {
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/*
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* Getting ippdrv capability by ipp_id.
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* some device not supported wb, output interface.
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* so, user application detect correct ipp driver
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* using this ioctl.
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*/
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ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock,
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prop_list->ipp_id);
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if (!ippdrv) {
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DRM_ERROR("not found ipp%d driver.\n",
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prop_list->ipp_id);
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return -ENODEV;
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}
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*prop_list = ippdrv->prop_list;
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}
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return 0;
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}
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static void ipp_print_property(struct drm_exynos_ipp_property *property,
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int idx)
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{
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struct drm_exynos_ipp_config *config = &property->config[idx];
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struct drm_exynos_pos *pos = &config->pos;
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struct drm_exynos_sz *sz = &config->sz;
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DRM_DEBUG_KMS("prop_id[%d]ops[%s]fmt[0x%x]\n",
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property->prop_id, idx ? "dst" : "src", config->fmt);
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DRM_DEBUG_KMS("pos[%d %d %d %d]sz[%d %d]f[%d]r[%d]\n",
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pos->x, pos->y, pos->w, pos->h,
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sz->hsize, sz->vsize, config->flip, config->degree);
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}
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static struct drm_exynos_ipp_cmd_work *ipp_create_cmd_work(void)
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{
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struct drm_exynos_ipp_cmd_work *cmd_work;
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cmd_work = kzalloc(sizeof(*cmd_work), GFP_KERNEL);
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if (!cmd_work)
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return ERR_PTR(-ENOMEM);
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INIT_WORK((struct work_struct *)cmd_work, ipp_sched_cmd);
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return cmd_work;
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}
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static struct drm_exynos_ipp_event_work *ipp_create_event_work(void)
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{
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struct drm_exynos_ipp_event_work *event_work;
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event_work = kzalloc(sizeof(*event_work), GFP_KERNEL);
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if (!event_work)
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return ERR_PTR(-ENOMEM);
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INIT_WORK(&event_work->work, ipp_sched_event);
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return event_work;
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}
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int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
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struct drm_file *file)
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{
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struct drm_exynos_file_private *file_priv = file->driver_priv;
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struct device *dev = file_priv->ipp_dev;
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struct ipp_context *ctx = get_ipp_context(dev);
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struct drm_exynos_ipp_property *property = data;
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struct exynos_drm_ippdrv *ippdrv;
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struct drm_exynos_ipp_cmd_node *c_node;
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u32 prop_id;
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int ret, i;
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if (!ctx) {
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DRM_ERROR("invalid context.\n");
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return -EINVAL;
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}
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if (!property) {
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DRM_ERROR("invalid property parameter.\n");
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return -EINVAL;
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}
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prop_id = property->prop_id;
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/*
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* This is log print for user application property.
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* user application set various property.
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*/
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for_each_ipp_ops(i)
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ipp_print_property(property, i);
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/*
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* In case prop_id is not zero try to set existing property.
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*/
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if (prop_id) {
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c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, prop_id);
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if (!c_node || c_node->filp != file) {
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DRM_DEBUG_KMS("prop_id[%d] not found\n", prop_id);
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return -EINVAL;
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}
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if (c_node->state != IPP_STATE_STOP) {
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DRM_DEBUG_KMS("prop_id[%d] not stopped\n", prop_id);
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return -EINVAL;
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}
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c_node->property = *property;
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return 0;
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}
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/* find ipp driver using ipp id */
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ippdrv = ipp_find_driver(ctx, property);
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if (IS_ERR(ippdrv)) {
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DRM_ERROR("failed to get ipp driver.\n");
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return -EINVAL;
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}
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/* allocate command node */
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c_node = kzalloc(sizeof(*c_node), GFP_KERNEL);
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if (!c_node)
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return -ENOMEM;
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ret = ipp_create_id(&ctx->prop_idr, &ctx->prop_lock, c_node);
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if (ret < 0) {
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DRM_ERROR("failed to create id.\n");
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goto err_clear;
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}
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property->prop_id = ret;
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DRM_DEBUG_KMS("created prop_id[%d]cmd[%d]ippdrv[0x%x]\n",
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property->prop_id, property->cmd, (int)ippdrv);
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/* stored property information and ippdrv in private data */
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c_node->property = *property;
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c_node->state = IPP_STATE_IDLE;
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c_node->filp = file;
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c_node->start_work = ipp_create_cmd_work();
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if (IS_ERR(c_node->start_work)) {
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DRM_ERROR("failed to create start work.\n");
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goto err_remove_id;
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}
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c_node->stop_work = ipp_create_cmd_work();
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if (IS_ERR(c_node->stop_work)) {
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DRM_ERROR("failed to create stop work.\n");
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goto err_free_start;
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}
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c_node->event_work = ipp_create_event_work();
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if (IS_ERR(c_node->event_work)) {
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DRM_ERROR("failed to create event work.\n");
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goto err_free_stop;
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}
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mutex_init(&c_node->lock);
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mutex_init(&c_node->mem_lock);
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mutex_init(&c_node->event_lock);
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init_completion(&c_node->start_complete);
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init_completion(&c_node->stop_complete);
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for_each_ipp_ops(i)
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INIT_LIST_HEAD(&c_node->mem_list[i]);
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INIT_LIST_HEAD(&c_node->event_list);
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mutex_lock(&ippdrv->cmd_lock);
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list_add_tail(&c_node->list, &ippdrv->cmd_list);
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mutex_unlock(&ippdrv->cmd_lock);
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/* make dedicated state without m2m */
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if (!ipp_is_m2m_cmd(property->cmd))
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ippdrv->dedicated = true;
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return 0;
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err_free_stop:
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kfree(c_node->stop_work);
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err_free_start:
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kfree(c_node->start_work);
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err_remove_id:
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ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock, property->prop_id);
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err_clear:
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kfree(c_node);
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return ret;
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}
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static int ipp_put_mem_node(struct drm_device *drm_dev,
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struct drm_exynos_ipp_cmd_node *c_node,
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struct drm_exynos_ipp_mem_node *m_node)
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{
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int i;
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DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
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if (!m_node) {
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DRM_ERROR("invalid dequeue node.\n");
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return -EFAULT;
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}
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DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id);
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/* put gem buffer */
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for_each_ipp_planar(i) {
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unsigned long handle = m_node->buf_info.handles[i];
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if (handle)
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exynos_drm_gem_put_dma_addr(drm_dev, handle,
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c_node->filp);
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}
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list_del(&m_node->list);
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kfree(m_node);
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return 0;
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}
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static struct drm_exynos_ipp_mem_node
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*ipp_get_mem_node(struct drm_device *drm_dev,
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struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct drm_exynos_ipp_mem_node *m_node;
|
|
struct drm_exynos_ipp_buf_info *buf_info;
|
|
int i;
|
|
|
|
m_node = kzalloc(sizeof(*m_node), GFP_KERNEL);
|
|
if (!m_node)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
buf_info = &m_node->buf_info;
|
|
|
|
/* operations, buffer id */
|
|
m_node->ops_id = qbuf->ops_id;
|
|
m_node->prop_id = qbuf->prop_id;
|
|
m_node->buf_id = qbuf->buf_id;
|
|
INIT_LIST_HEAD(&m_node->list);
|
|
|
|
DRM_DEBUG_KMS("m_node[0x%x]ops_id[%d]\n", (int)m_node, qbuf->ops_id);
|
|
DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]\n", qbuf->prop_id, m_node->buf_id);
|
|
|
|
for_each_ipp_planar(i) {
|
|
DRM_DEBUG_KMS("i[%d]handle[0x%x]\n", i, qbuf->handle[i]);
|
|
|
|
/* get dma address by handle */
|
|
if (qbuf->handle[i]) {
|
|
dma_addr_t *addr;
|
|
|
|
addr = exynos_drm_gem_get_dma_addr(drm_dev,
|
|
qbuf->handle[i], c_node->filp);
|
|
if (IS_ERR(addr)) {
|
|
DRM_ERROR("failed to get addr.\n");
|
|
ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
|
|
buf_info->handles[i] = qbuf->handle[i];
|
|
buf_info->base[i] = *addr;
|
|
DRM_DEBUG_KMS("i[%d]base[0x%x]hd[0x%lx]\n", i,
|
|
buf_info->base[i], buf_info->handles[i]);
|
|
}
|
|
}
|
|
|
|
mutex_lock(&c_node->mem_lock);
|
|
list_add_tail(&m_node->list, &c_node->mem_list[qbuf->ops_id]);
|
|
mutex_unlock(&c_node->mem_lock);
|
|
|
|
return m_node;
|
|
}
|
|
|
|
static void ipp_clean_mem_nodes(struct drm_device *drm_dev,
|
|
struct drm_exynos_ipp_cmd_node *c_node, int ops)
|
|
{
|
|
struct drm_exynos_ipp_mem_node *m_node, *tm_node;
|
|
struct list_head *head = &c_node->mem_list[ops];
|
|
|
|
mutex_lock(&c_node->mem_lock);
|
|
|
|
list_for_each_entry_safe(m_node, tm_node, head, list) {
|
|
int ret;
|
|
|
|
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
if (ret)
|
|
DRM_ERROR("failed to put m_node.\n");
|
|
}
|
|
|
|
mutex_unlock(&c_node->mem_lock);
|
|
}
|
|
|
|
static void ipp_free_event(struct drm_pending_event *event)
|
|
{
|
|
kfree(event);
|
|
}
|
|
|
|
static int ipp_get_event(struct drm_device *drm_dev,
|
|
struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct drm_exynos_ipp_send_event *e;
|
|
unsigned long flags;
|
|
|
|
DRM_DEBUG_KMS("ops_id[%d]buf_id[%d]\n", qbuf->ops_id, qbuf->buf_id);
|
|
|
|
e = kzalloc(sizeof(*e), GFP_KERNEL);
|
|
if (!e) {
|
|
spin_lock_irqsave(&drm_dev->event_lock, flags);
|
|
c_node->filp->event_space += sizeof(e->event);
|
|
spin_unlock_irqrestore(&drm_dev->event_lock, flags);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* make event */
|
|
e->event.base.type = DRM_EXYNOS_IPP_EVENT;
|
|
e->event.base.length = sizeof(e->event);
|
|
e->event.user_data = qbuf->user_data;
|
|
e->event.prop_id = qbuf->prop_id;
|
|
e->event.buf_id[EXYNOS_DRM_OPS_DST] = qbuf->buf_id;
|
|
e->base.event = &e->event.base;
|
|
e->base.file_priv = c_node->filp;
|
|
e->base.destroy = ipp_free_event;
|
|
mutex_lock(&c_node->event_lock);
|
|
list_add_tail(&e->base.link, &c_node->event_list);
|
|
mutex_unlock(&c_node->event_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct drm_exynos_ipp_send_event *e, *te;
|
|
int count = 0;
|
|
|
|
mutex_lock(&c_node->event_lock);
|
|
list_for_each_entry_safe(e, te, &c_node->event_list, base.link) {
|
|
DRM_DEBUG_KMS("count[%d]e[0x%x]\n", count++, (int)e);
|
|
|
|
/*
|
|
* qbuf == NULL condition means all event deletion.
|
|
* stop operations want to delete all event list.
|
|
* another case delete only same buf id.
|
|
*/
|
|
if (!qbuf) {
|
|
/* delete list */
|
|
list_del(&e->base.link);
|
|
kfree(e);
|
|
}
|
|
|
|
/* compare buffer id */
|
|
if (qbuf && (qbuf->buf_id ==
|
|
e->event.buf_id[EXYNOS_DRM_OPS_DST])) {
|
|
/* delete list */
|
|
list_del(&e->base.link);
|
|
kfree(e);
|
|
goto out_unlock;
|
|
}
|
|
}
|
|
|
|
out_unlock:
|
|
mutex_unlock(&c_node->event_lock);
|
|
return;
|
|
}
|
|
|
|
static void ipp_clean_cmd_node(struct ipp_context *ctx,
|
|
struct drm_exynos_ipp_cmd_node *c_node)
|
|
{
|
|
int i;
|
|
|
|
/* cancel works */
|
|
cancel_work_sync(&c_node->start_work->work);
|
|
cancel_work_sync(&c_node->stop_work->work);
|
|
cancel_work_sync(&c_node->event_work->work);
|
|
|
|
/* put event */
|
|
ipp_put_event(c_node, NULL);
|
|
|
|
for_each_ipp_ops(i)
|
|
ipp_clean_mem_nodes(ctx->subdrv.drm_dev, c_node, i);
|
|
|
|
/* delete list */
|
|
list_del(&c_node->list);
|
|
|
|
ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock,
|
|
c_node->property.prop_id);
|
|
|
|
/* destroy mutex */
|
|
mutex_destroy(&c_node->lock);
|
|
mutex_destroy(&c_node->mem_lock);
|
|
mutex_destroy(&c_node->event_lock);
|
|
|
|
/* free command node */
|
|
kfree(c_node->start_work);
|
|
kfree(c_node->stop_work);
|
|
kfree(c_node->event_work);
|
|
kfree(c_node);
|
|
}
|
|
|
|
static bool ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node)
|
|
{
|
|
switch (c_node->property.cmd) {
|
|
case IPP_CMD_WB:
|
|
return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]);
|
|
case IPP_CMD_OUTPUT:
|
|
return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]);
|
|
case IPP_CMD_M2M:
|
|
default:
|
|
return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]) &&
|
|
!list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]);
|
|
}
|
|
}
|
|
|
|
static struct drm_exynos_ipp_mem_node
|
|
*ipp_find_mem_node(struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct drm_exynos_ipp_mem_node *m_node;
|
|
struct list_head *head;
|
|
int count = 0;
|
|
|
|
DRM_DEBUG_KMS("buf_id[%d]\n", qbuf->buf_id);
|
|
|
|
/* source/destination memory list */
|
|
head = &c_node->mem_list[qbuf->ops_id];
|
|
|
|
/* find memory node from memory list */
|
|
list_for_each_entry(m_node, head, list) {
|
|
DRM_DEBUG_KMS("count[%d]m_node[0x%x]\n", count++, (int)m_node);
|
|
|
|
/* compare buffer id */
|
|
if (m_node->buf_id == qbuf->buf_id)
|
|
return m_node;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_mem_node *m_node)
|
|
{
|
|
struct exynos_drm_ipp_ops *ops = NULL;
|
|
int ret = 0;
|
|
|
|
DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
|
|
|
|
if (!m_node) {
|
|
DRM_ERROR("invalid queue node.\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id);
|
|
|
|
/* get operations callback */
|
|
ops = ippdrv->ops[m_node->ops_id];
|
|
if (!ops) {
|
|
DRM_ERROR("not support ops.\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
/* set address and enable irq */
|
|
if (ops->set_addr) {
|
|
ret = ops->set_addr(ippdrv->dev, &m_node->buf_info,
|
|
m_node->buf_id, IPP_BUF_ENQUEUE);
|
|
if (ret) {
|
|
DRM_ERROR("failed to set addr.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ipp_handle_cmd_work(struct device *dev,
|
|
struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_cmd_work *cmd_work,
|
|
struct drm_exynos_ipp_cmd_node *c_node)
|
|
{
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
|
|
cmd_work->ippdrv = ippdrv;
|
|
cmd_work->c_node = c_node;
|
|
queue_work(ctx->cmd_workq, &cmd_work->work);
|
|
}
|
|
|
|
static int ipp_queue_buf_with_run(struct device *dev,
|
|
struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_mem_node *m_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct exynos_drm_ippdrv *ippdrv;
|
|
struct drm_exynos_ipp_property *property;
|
|
struct exynos_drm_ipp_ops *ops;
|
|
int ret;
|
|
|
|
ippdrv = ipp_find_drv_by_handle(qbuf->prop_id);
|
|
if (IS_ERR(ippdrv)) {
|
|
DRM_ERROR("failed to get ipp driver.\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
ops = ippdrv->ops[qbuf->ops_id];
|
|
if (!ops) {
|
|
DRM_ERROR("failed to get ops.\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
property = &c_node->property;
|
|
|
|
if (c_node->state != IPP_STATE_START) {
|
|
DRM_DEBUG_KMS("bypass for invalid state.\n");
|
|
return 0;
|
|
}
|
|
|
|
mutex_lock(&c_node->mem_lock);
|
|
if (!ipp_check_mem_list(c_node)) {
|
|
mutex_unlock(&c_node->mem_lock);
|
|
DRM_DEBUG_KMS("empty memory.\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If set destination buffer and enabled clock,
|
|
* then m2m operations need start operations at queue_buf
|
|
*/
|
|
if (ipp_is_m2m_cmd(property->cmd)) {
|
|
struct drm_exynos_ipp_cmd_work *cmd_work = c_node->start_work;
|
|
|
|
cmd_work->ctrl = IPP_CTRL_PLAY;
|
|
ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
|
|
} else {
|
|
ret = ipp_set_mem_node(ippdrv, c_node, m_node);
|
|
if (ret) {
|
|
mutex_unlock(&c_node->mem_lock);
|
|
DRM_ERROR("failed to set m node.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
mutex_unlock(&c_node->mem_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ipp_clean_queue_buf(struct drm_device *drm_dev,
|
|
struct drm_exynos_ipp_cmd_node *c_node,
|
|
struct drm_exynos_ipp_queue_buf *qbuf)
|
|
{
|
|
struct drm_exynos_ipp_mem_node *m_node, *tm_node;
|
|
|
|
/* delete list */
|
|
mutex_lock(&c_node->mem_lock);
|
|
list_for_each_entry_safe(m_node, tm_node,
|
|
&c_node->mem_list[qbuf->ops_id], list) {
|
|
if (m_node->buf_id == qbuf->buf_id &&
|
|
m_node->ops_id == qbuf->ops_id)
|
|
ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
}
|
|
mutex_unlock(&c_node->mem_lock);
|
|
}
|
|
|
|
int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data,
|
|
struct drm_file *file)
|
|
{
|
|
struct drm_exynos_file_private *file_priv = file->driver_priv;
|
|
struct device *dev = file_priv->ipp_dev;
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
struct drm_exynos_ipp_queue_buf *qbuf = data;
|
|
struct drm_exynos_ipp_cmd_node *c_node;
|
|
struct drm_exynos_ipp_mem_node *m_node;
|
|
int ret;
|
|
|
|
if (!qbuf) {
|
|
DRM_ERROR("invalid buf parameter.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (qbuf->ops_id >= EXYNOS_DRM_OPS_MAX) {
|
|
DRM_ERROR("invalid ops parameter.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("prop_id[%d]ops_id[%s]buf_id[%d]buf_type[%d]\n",
|
|
qbuf->prop_id, qbuf->ops_id ? "dst" : "src",
|
|
qbuf->buf_id, qbuf->buf_type);
|
|
|
|
/* find command node */
|
|
c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock,
|
|
qbuf->prop_id);
|
|
if (!c_node || c_node->filp != file) {
|
|
DRM_ERROR("failed to get command node.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* buffer control */
|
|
switch (qbuf->buf_type) {
|
|
case IPP_BUF_ENQUEUE:
|
|
/* get memory node */
|
|
m_node = ipp_get_mem_node(drm_dev, c_node, qbuf);
|
|
if (IS_ERR(m_node)) {
|
|
DRM_ERROR("failed to get m_node.\n");
|
|
return PTR_ERR(m_node);
|
|
}
|
|
|
|
/*
|
|
* first step get event for destination buffer.
|
|
* and second step when M2M case run with destination buffer
|
|
* if needed.
|
|
*/
|
|
if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) {
|
|
/* get event for destination buffer */
|
|
ret = ipp_get_event(drm_dev, c_node, qbuf);
|
|
if (ret) {
|
|
DRM_ERROR("failed to get event.\n");
|
|
goto err_clean_node;
|
|
}
|
|
|
|
/*
|
|
* M2M case run play control for streaming feature.
|
|
* other case set address and waiting.
|
|
*/
|
|
ret = ipp_queue_buf_with_run(dev, c_node, m_node, qbuf);
|
|
if (ret) {
|
|
DRM_ERROR("failed to run command.\n");
|
|
goto err_clean_node;
|
|
}
|
|
}
|
|
break;
|
|
case IPP_BUF_DEQUEUE:
|
|
mutex_lock(&c_node->lock);
|
|
|
|
/* put event for destination buffer */
|
|
if (qbuf->ops_id == EXYNOS_DRM_OPS_DST)
|
|
ipp_put_event(c_node, qbuf);
|
|
|
|
ipp_clean_queue_buf(drm_dev, c_node, qbuf);
|
|
|
|
mutex_unlock(&c_node->lock);
|
|
break;
|
|
default:
|
|
DRM_ERROR("invalid buffer control.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_clean_node:
|
|
DRM_ERROR("clean memory nodes.\n");
|
|
|
|
ipp_clean_queue_buf(drm_dev, c_node, qbuf);
|
|
return ret;
|
|
}
|
|
|
|
static bool exynos_drm_ipp_check_valid(struct device *dev,
|
|
enum drm_exynos_ipp_ctrl ctrl, enum drm_exynos_ipp_state state)
|
|
{
|
|
if (ctrl != IPP_CTRL_PLAY) {
|
|
if (pm_runtime_suspended(dev)) {
|
|
DRM_ERROR("pm:runtime_suspended.\n");
|
|
goto err_status;
|
|
}
|
|
}
|
|
|
|
switch (ctrl) {
|
|
case IPP_CTRL_PLAY:
|
|
if (state != IPP_STATE_IDLE)
|
|
goto err_status;
|
|
break;
|
|
case IPP_CTRL_STOP:
|
|
if (state == IPP_STATE_STOP)
|
|
goto err_status;
|
|
break;
|
|
case IPP_CTRL_PAUSE:
|
|
if (state != IPP_STATE_START)
|
|
goto err_status;
|
|
break;
|
|
case IPP_CTRL_RESUME:
|
|
if (state != IPP_STATE_STOP)
|
|
goto err_status;
|
|
break;
|
|
default:
|
|
DRM_ERROR("invalid state.\n");
|
|
goto err_status;
|
|
}
|
|
|
|
return true;
|
|
|
|
err_status:
|
|
DRM_ERROR("invalid status:ctrl[%d]state[%d]\n", ctrl, state);
|
|
return false;
|
|
}
|
|
|
|
int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data,
|
|
struct drm_file *file)
|
|
{
|
|
struct drm_exynos_file_private *file_priv = file->driver_priv;
|
|
struct exynos_drm_ippdrv *ippdrv = NULL;
|
|
struct device *dev = file_priv->ipp_dev;
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
struct drm_exynos_ipp_cmd_ctrl *cmd_ctrl = data;
|
|
struct drm_exynos_ipp_cmd_work *cmd_work;
|
|
struct drm_exynos_ipp_cmd_node *c_node;
|
|
|
|
if (!ctx) {
|
|
DRM_ERROR("invalid context.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!cmd_ctrl) {
|
|
DRM_ERROR("invalid control parameter.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("ctrl[%d]prop_id[%d]\n",
|
|
cmd_ctrl->ctrl, cmd_ctrl->prop_id);
|
|
|
|
ippdrv = ipp_find_drv_by_handle(cmd_ctrl->prop_id);
|
|
if (IS_ERR(ippdrv)) {
|
|
DRM_ERROR("failed to get ipp driver.\n");
|
|
return PTR_ERR(ippdrv);
|
|
}
|
|
|
|
c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock,
|
|
cmd_ctrl->prop_id);
|
|
if (!c_node || c_node->filp != file) {
|
|
DRM_ERROR("invalid command node list.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!exynos_drm_ipp_check_valid(ippdrv->dev, cmd_ctrl->ctrl,
|
|
c_node->state)) {
|
|
DRM_ERROR("invalid state.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (cmd_ctrl->ctrl) {
|
|
case IPP_CTRL_PLAY:
|
|
if (pm_runtime_suspended(ippdrv->dev))
|
|
pm_runtime_get_sync(ippdrv->dev);
|
|
|
|
c_node->state = IPP_STATE_START;
|
|
|
|
cmd_work = c_node->start_work;
|
|
cmd_work->ctrl = cmd_ctrl->ctrl;
|
|
ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
|
|
break;
|
|
case IPP_CTRL_STOP:
|
|
cmd_work = c_node->stop_work;
|
|
cmd_work->ctrl = cmd_ctrl->ctrl;
|
|
ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
|
|
|
|
if (!wait_for_completion_timeout(&c_node->stop_complete,
|
|
msecs_to_jiffies(300))) {
|
|
DRM_ERROR("timeout stop:prop_id[%d]\n",
|
|
c_node->property.prop_id);
|
|
}
|
|
|
|
c_node->state = IPP_STATE_STOP;
|
|
ippdrv->dedicated = false;
|
|
mutex_lock(&ippdrv->cmd_lock);
|
|
ipp_clean_cmd_node(ctx, c_node);
|
|
|
|
if (list_empty(&ippdrv->cmd_list))
|
|
pm_runtime_put_sync(ippdrv->dev);
|
|
mutex_unlock(&ippdrv->cmd_lock);
|
|
break;
|
|
case IPP_CTRL_PAUSE:
|
|
cmd_work = c_node->stop_work;
|
|
cmd_work->ctrl = cmd_ctrl->ctrl;
|
|
ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
|
|
|
|
if (!wait_for_completion_timeout(&c_node->stop_complete,
|
|
msecs_to_jiffies(200))) {
|
|
DRM_ERROR("timeout stop:prop_id[%d]\n",
|
|
c_node->property.prop_id);
|
|
}
|
|
|
|
c_node->state = IPP_STATE_STOP;
|
|
break;
|
|
case IPP_CTRL_RESUME:
|
|
c_node->state = IPP_STATE_START;
|
|
cmd_work = c_node->start_work;
|
|
cmd_work->ctrl = cmd_ctrl->ctrl;
|
|
ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
|
|
break;
|
|
default:
|
|
DRM_ERROR("could not support this state currently.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("done ctrl[%d]prop_id[%d]\n",
|
|
cmd_ctrl->ctrl, cmd_ctrl->prop_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int exynos_drm_ippnb_register(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_register(
|
|
&exynos_drm_ippnb_list, nb);
|
|
}
|
|
|
|
int exynos_drm_ippnb_unregister(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_unregister(
|
|
&exynos_drm_ippnb_list, nb);
|
|
}
|
|
|
|
int exynos_drm_ippnb_send_event(unsigned long val, void *v)
|
|
{
|
|
return blocking_notifier_call_chain(
|
|
&exynos_drm_ippnb_list, val, v);
|
|
}
|
|
|
|
static int ipp_set_property(struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_property *property)
|
|
{
|
|
struct exynos_drm_ipp_ops *ops = NULL;
|
|
bool swap = false;
|
|
int ret, i;
|
|
|
|
if (!property) {
|
|
DRM_ERROR("invalid property parameter.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
|
|
|
|
/* reset h/w block */
|
|
if (ippdrv->reset &&
|
|
ippdrv->reset(ippdrv->dev)) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* set source,destination operations */
|
|
for_each_ipp_ops(i) {
|
|
struct drm_exynos_ipp_config *config =
|
|
&property->config[i];
|
|
|
|
ops = ippdrv->ops[i];
|
|
if (!ops || !config) {
|
|
DRM_ERROR("not support ops and config.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* set format */
|
|
if (ops->set_fmt) {
|
|
ret = ops->set_fmt(ippdrv->dev, config->fmt);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
/* set transform for rotation, flip */
|
|
if (ops->set_transf) {
|
|
ret = ops->set_transf(ippdrv->dev, config->degree,
|
|
config->flip, &swap);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
/* set size */
|
|
if (ops->set_size) {
|
|
ret = ops->set_size(ippdrv->dev, swap, &config->pos,
|
|
&config->sz);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_cmd_node *c_node)
|
|
{
|
|
struct drm_exynos_ipp_mem_node *m_node;
|
|
struct drm_exynos_ipp_property *property = &c_node->property;
|
|
struct list_head *head;
|
|
int ret, i;
|
|
|
|
DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
|
|
|
|
/* store command info in ippdrv */
|
|
ippdrv->c_node = c_node;
|
|
|
|
mutex_lock(&c_node->mem_lock);
|
|
if (!ipp_check_mem_list(c_node)) {
|
|
DRM_DEBUG_KMS("empty memory.\n");
|
|
ret = -ENOMEM;
|
|
goto err_unlock;
|
|
}
|
|
|
|
/* set current property in ippdrv */
|
|
ret = ipp_set_property(ippdrv, property);
|
|
if (ret) {
|
|
DRM_ERROR("failed to set property.\n");
|
|
ippdrv->c_node = NULL;
|
|
goto err_unlock;
|
|
}
|
|
|
|
/* check command */
|
|
switch (property->cmd) {
|
|
case IPP_CMD_M2M:
|
|
for_each_ipp_ops(i) {
|
|
/* source/destination memory list */
|
|
head = &c_node->mem_list[i];
|
|
|
|
m_node = list_first_entry(head,
|
|
struct drm_exynos_ipp_mem_node, list);
|
|
|
|
DRM_DEBUG_KMS("m_node[0x%x]\n", (int)m_node);
|
|
|
|
ret = ipp_set_mem_node(ippdrv, c_node, m_node);
|
|
if (ret) {
|
|
DRM_ERROR("failed to set m node.\n");
|
|
goto err_unlock;
|
|
}
|
|
}
|
|
break;
|
|
case IPP_CMD_WB:
|
|
/* destination memory list */
|
|
head = &c_node->mem_list[EXYNOS_DRM_OPS_DST];
|
|
|
|
list_for_each_entry(m_node, head, list) {
|
|
ret = ipp_set_mem_node(ippdrv, c_node, m_node);
|
|
if (ret) {
|
|
DRM_ERROR("failed to set m node.\n");
|
|
goto err_unlock;
|
|
}
|
|
}
|
|
break;
|
|
case IPP_CMD_OUTPUT:
|
|
/* source memory list */
|
|
head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
|
|
|
|
list_for_each_entry(m_node, head, list) {
|
|
ret = ipp_set_mem_node(ippdrv, c_node, m_node);
|
|
if (ret) {
|
|
DRM_ERROR("failed to set m node.\n");
|
|
goto err_unlock;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
DRM_ERROR("invalid operations.\n");
|
|
ret = -EINVAL;
|
|
goto err_unlock;
|
|
}
|
|
mutex_unlock(&c_node->mem_lock);
|
|
|
|
DRM_DEBUG_KMS("cmd[%d]\n", property->cmd);
|
|
|
|
/* start operations */
|
|
if (ippdrv->start) {
|
|
ret = ippdrv->start(ippdrv->dev, property->cmd);
|
|
if (ret) {
|
|
DRM_ERROR("failed to start ops.\n");
|
|
ippdrv->c_node = NULL;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_unlock:
|
|
mutex_unlock(&c_node->mem_lock);
|
|
ippdrv->c_node = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static int ipp_stop_property(struct drm_device *drm_dev,
|
|
struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_cmd_node *c_node)
|
|
{
|
|
struct drm_exynos_ipp_property *property = &c_node->property;
|
|
int i;
|
|
|
|
DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
|
|
|
|
/* stop operations */
|
|
if (ippdrv->stop)
|
|
ippdrv->stop(ippdrv->dev, property->cmd);
|
|
|
|
/* check command */
|
|
switch (property->cmd) {
|
|
case IPP_CMD_M2M:
|
|
for_each_ipp_ops(i)
|
|
ipp_clean_mem_nodes(drm_dev, c_node, i);
|
|
break;
|
|
case IPP_CMD_WB:
|
|
ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_DST);
|
|
break;
|
|
case IPP_CMD_OUTPUT:
|
|
ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_SRC);
|
|
break;
|
|
default:
|
|
DRM_ERROR("invalid operations.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ipp_sched_cmd(struct work_struct *work)
|
|
{
|
|
struct drm_exynos_ipp_cmd_work *cmd_work =
|
|
container_of(work, struct drm_exynos_ipp_cmd_work, work);
|
|
struct exynos_drm_ippdrv *ippdrv;
|
|
struct drm_exynos_ipp_cmd_node *c_node;
|
|
struct drm_exynos_ipp_property *property;
|
|
int ret;
|
|
|
|
ippdrv = cmd_work->ippdrv;
|
|
if (!ippdrv) {
|
|
DRM_ERROR("invalid ippdrv list.\n");
|
|
return;
|
|
}
|
|
|
|
c_node = cmd_work->c_node;
|
|
if (!c_node) {
|
|
DRM_ERROR("invalid command node list.\n");
|
|
return;
|
|
}
|
|
|
|
mutex_lock(&c_node->lock);
|
|
|
|
property = &c_node->property;
|
|
|
|
switch (cmd_work->ctrl) {
|
|
case IPP_CTRL_PLAY:
|
|
case IPP_CTRL_RESUME:
|
|
ret = ipp_start_property(ippdrv, c_node);
|
|
if (ret) {
|
|
DRM_ERROR("failed to start property:prop_id[%d]\n",
|
|
c_node->property.prop_id);
|
|
goto err_unlock;
|
|
}
|
|
|
|
/*
|
|
* M2M case supports wait_completion of transfer.
|
|
* because M2M case supports single unit operation
|
|
* with multiple queue.
|
|
* M2M need to wait completion of data transfer.
|
|
*/
|
|
if (ipp_is_m2m_cmd(property->cmd)) {
|
|
if (!wait_for_completion_timeout
|
|
(&c_node->start_complete, msecs_to_jiffies(200))) {
|
|
DRM_ERROR("timeout event:prop_id[%d]\n",
|
|
c_node->property.prop_id);
|
|
goto err_unlock;
|
|
}
|
|
}
|
|
break;
|
|
case IPP_CTRL_STOP:
|
|
case IPP_CTRL_PAUSE:
|
|
ret = ipp_stop_property(ippdrv->drm_dev, ippdrv,
|
|
c_node);
|
|
if (ret) {
|
|
DRM_ERROR("failed to stop property.\n");
|
|
goto err_unlock;
|
|
}
|
|
|
|
complete(&c_node->stop_complete);
|
|
break;
|
|
default:
|
|
DRM_ERROR("unknown control type\n");
|
|
break;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("ctrl[%d] done.\n", cmd_work->ctrl);
|
|
|
|
err_unlock:
|
|
mutex_unlock(&c_node->lock);
|
|
}
|
|
|
|
static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv,
|
|
struct drm_exynos_ipp_cmd_node *c_node, int *buf_id)
|
|
{
|
|
struct drm_device *drm_dev = ippdrv->drm_dev;
|
|
struct drm_exynos_ipp_property *property = &c_node->property;
|
|
struct drm_exynos_ipp_mem_node *m_node;
|
|
struct drm_exynos_ipp_queue_buf qbuf;
|
|
struct drm_exynos_ipp_send_event *e;
|
|
struct list_head *head;
|
|
struct timeval now;
|
|
unsigned long flags;
|
|
u32 tbuf_id[EXYNOS_DRM_OPS_MAX] = {0, };
|
|
int ret, i;
|
|
|
|
for_each_ipp_ops(i)
|
|
DRM_DEBUG_KMS("%s buf_id[%d]\n", i ? "dst" : "src", buf_id[i]);
|
|
|
|
if (!drm_dev) {
|
|
DRM_ERROR("failed to get drm_dev.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!property) {
|
|
DRM_ERROR("failed to get property.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&c_node->event_lock);
|
|
if (list_empty(&c_node->event_list)) {
|
|
DRM_DEBUG_KMS("event list is empty.\n");
|
|
ret = 0;
|
|
goto err_event_unlock;
|
|
}
|
|
|
|
mutex_lock(&c_node->mem_lock);
|
|
if (!ipp_check_mem_list(c_node)) {
|
|
DRM_DEBUG_KMS("empty memory.\n");
|
|
ret = 0;
|
|
goto err_mem_unlock;
|
|
}
|
|
|
|
/* check command */
|
|
switch (property->cmd) {
|
|
case IPP_CMD_M2M:
|
|
for_each_ipp_ops(i) {
|
|
/* source/destination memory list */
|
|
head = &c_node->mem_list[i];
|
|
|
|
m_node = list_first_entry(head,
|
|
struct drm_exynos_ipp_mem_node, list);
|
|
|
|
tbuf_id[i] = m_node->buf_id;
|
|
DRM_DEBUG_KMS("%s buf_id[%d]\n",
|
|
i ? "dst" : "src", tbuf_id[i]);
|
|
|
|
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
if (ret)
|
|
DRM_ERROR("failed to put m_node.\n");
|
|
}
|
|
break;
|
|
case IPP_CMD_WB:
|
|
/* clear buf for finding */
|
|
memset(&qbuf, 0x0, sizeof(qbuf));
|
|
qbuf.ops_id = EXYNOS_DRM_OPS_DST;
|
|
qbuf.buf_id = buf_id[EXYNOS_DRM_OPS_DST];
|
|
|
|
/* get memory node entry */
|
|
m_node = ipp_find_mem_node(c_node, &qbuf);
|
|
if (!m_node) {
|
|
DRM_ERROR("empty memory node.\n");
|
|
ret = -ENOMEM;
|
|
goto err_mem_unlock;
|
|
}
|
|
|
|
tbuf_id[EXYNOS_DRM_OPS_DST] = m_node->buf_id;
|
|
|
|
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
if (ret)
|
|
DRM_ERROR("failed to put m_node.\n");
|
|
break;
|
|
case IPP_CMD_OUTPUT:
|
|
/* source memory list */
|
|
head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
|
|
|
|
m_node = list_first_entry(head,
|
|
struct drm_exynos_ipp_mem_node, list);
|
|
|
|
tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id;
|
|
|
|
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
|
|
if (ret)
|
|
DRM_ERROR("failed to put m_node.\n");
|
|
break;
|
|
default:
|
|
DRM_ERROR("invalid operations.\n");
|
|
ret = -EINVAL;
|
|
goto err_mem_unlock;
|
|
}
|
|
mutex_unlock(&c_node->mem_lock);
|
|
|
|
if (tbuf_id[EXYNOS_DRM_OPS_DST] != buf_id[EXYNOS_DRM_OPS_DST])
|
|
DRM_ERROR("failed to match buf_id[%d %d]prop_id[%d]\n",
|
|
tbuf_id[1], buf_id[1], property->prop_id);
|
|
|
|
/*
|
|
* command node have event list of destination buffer
|
|
* If destination buffer enqueue to mem list,
|
|
* then we make event and link to event list tail.
|
|
* so, we get first event for first enqueued buffer.
|
|
*/
|
|
e = list_first_entry(&c_node->event_list,
|
|
struct drm_exynos_ipp_send_event, base.link);
|
|
|
|
do_gettimeofday(&now);
|
|
DRM_DEBUG_KMS("tv_sec[%ld]tv_usec[%ld]\n", now.tv_sec, now.tv_usec);
|
|
e->event.tv_sec = now.tv_sec;
|
|
e->event.tv_usec = now.tv_usec;
|
|
e->event.prop_id = property->prop_id;
|
|
|
|
/* set buffer id about source destination */
|
|
for_each_ipp_ops(i)
|
|
e->event.buf_id[i] = tbuf_id[i];
|
|
|
|
spin_lock_irqsave(&drm_dev->event_lock, flags);
|
|
list_move_tail(&e->base.link, &e->base.file_priv->event_list);
|
|
wake_up_interruptible(&e->base.file_priv->event_wait);
|
|
spin_unlock_irqrestore(&drm_dev->event_lock, flags);
|
|
mutex_unlock(&c_node->event_lock);
|
|
|
|
DRM_DEBUG_KMS("done cmd[%d]prop_id[%d]buf_id[%d]\n",
|
|
property->cmd, property->prop_id, tbuf_id[EXYNOS_DRM_OPS_DST]);
|
|
|
|
return 0;
|
|
|
|
err_mem_unlock:
|
|
mutex_unlock(&c_node->mem_lock);
|
|
err_event_unlock:
|
|
mutex_unlock(&c_node->event_lock);
|
|
return ret;
|
|
}
|
|
|
|
void ipp_sched_event(struct work_struct *work)
|
|
{
|
|
struct drm_exynos_ipp_event_work *event_work =
|
|
container_of(work, struct drm_exynos_ipp_event_work, work);
|
|
struct exynos_drm_ippdrv *ippdrv;
|
|
struct drm_exynos_ipp_cmd_node *c_node;
|
|
int ret;
|
|
|
|
if (!event_work) {
|
|
DRM_ERROR("failed to get event_work.\n");
|
|
return;
|
|
}
|
|
|
|
DRM_DEBUG_KMS("buf_id[%d]\n", event_work->buf_id[EXYNOS_DRM_OPS_DST]);
|
|
|
|
ippdrv = event_work->ippdrv;
|
|
if (!ippdrv) {
|
|
DRM_ERROR("failed to get ipp driver.\n");
|
|
return;
|
|
}
|
|
|
|
c_node = ippdrv->c_node;
|
|
if (!c_node) {
|
|
DRM_ERROR("failed to get command node.\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* IPP supports command thread, event thread synchronization.
|
|
* If IPP close immediately from user land, then IPP make
|
|
* synchronization with command thread, so make complete event.
|
|
* or going out operations.
|
|
*/
|
|
if (c_node->state != IPP_STATE_START) {
|
|
DRM_DEBUG_KMS("bypass state[%d]prop_id[%d]\n",
|
|
c_node->state, c_node->property.prop_id);
|
|
goto err_completion;
|
|
}
|
|
|
|
ret = ipp_send_event(ippdrv, c_node, event_work->buf_id);
|
|
if (ret) {
|
|
DRM_ERROR("failed to send event.\n");
|
|
goto err_completion;
|
|
}
|
|
|
|
err_completion:
|
|
if (ipp_is_m2m_cmd(c_node->property.cmd))
|
|
complete(&c_node->start_complete);
|
|
}
|
|
|
|
static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
|
|
{
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
struct exynos_drm_ippdrv *ippdrv;
|
|
int ret, count = 0;
|
|
|
|
/* get ipp driver entry */
|
|
list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
|
|
ippdrv->drm_dev = drm_dev;
|
|
|
|
ret = ipp_create_id(&ctx->ipp_idr, &ctx->ipp_lock, ippdrv);
|
|
if (ret < 0) {
|
|
DRM_ERROR("failed to create id.\n");
|
|
goto err;
|
|
}
|
|
ippdrv->prop_list.ipp_id = ret;
|
|
|
|
DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]ipp_id[%d]\n",
|
|
count++, (int)ippdrv, ret);
|
|
|
|
/* store parent device for node */
|
|
ippdrv->parent_dev = dev;
|
|
|
|
/* store event work queue and handler */
|
|
ippdrv->event_workq = ctx->event_workq;
|
|
ippdrv->sched_event = ipp_sched_event;
|
|
INIT_LIST_HEAD(&ippdrv->cmd_list);
|
|
mutex_init(&ippdrv->cmd_lock);
|
|
|
|
if (is_drm_iommu_supported(drm_dev)) {
|
|
ret = drm_iommu_attach_device(drm_dev, ippdrv->dev);
|
|
if (ret) {
|
|
DRM_ERROR("failed to activate iommu\n");
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
/* get ipp driver entry */
|
|
list_for_each_entry_continue_reverse(ippdrv, &exynos_drm_ippdrv_list,
|
|
drv_list) {
|
|
if (is_drm_iommu_supported(drm_dev))
|
|
drm_iommu_detach_device(drm_dev, ippdrv->dev);
|
|
|
|
ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock,
|
|
ippdrv->prop_list.ipp_id);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
|
|
{
|
|
struct exynos_drm_ippdrv *ippdrv, *t;
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
|
|
/* get ipp driver entry */
|
|
list_for_each_entry_safe(ippdrv, t, &exynos_drm_ippdrv_list, drv_list) {
|
|
if (is_drm_iommu_supported(drm_dev))
|
|
drm_iommu_detach_device(drm_dev, ippdrv->dev);
|
|
|
|
ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock,
|
|
ippdrv->prop_list.ipp_id);
|
|
|
|
ippdrv->drm_dev = NULL;
|
|
exynos_drm_ippdrv_unregister(ippdrv);
|
|
}
|
|
}
|
|
|
|
static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev,
|
|
struct drm_file *file)
|
|
{
|
|
struct drm_exynos_file_private *file_priv = file->driver_priv;
|
|
|
|
file_priv->ipp_dev = dev;
|
|
|
|
DRM_DEBUG_KMS("done priv[0x%x]\n", (int)dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
|
|
struct drm_file *file)
|
|
{
|
|
struct exynos_drm_ippdrv *ippdrv = NULL;
|
|
struct ipp_context *ctx = get_ipp_context(dev);
|
|
struct drm_exynos_ipp_cmd_node *c_node, *tc_node;
|
|
int count = 0;
|
|
|
|
list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
|
|
mutex_lock(&ippdrv->cmd_lock);
|
|
list_for_each_entry_safe(c_node, tc_node,
|
|
&ippdrv->cmd_list, list) {
|
|
DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n",
|
|
count++, (int)ippdrv);
|
|
|
|
if (c_node->filp == file) {
|
|
/*
|
|
* userland goto unnormal state. process killed.
|
|
* and close the file.
|
|
* so, IPP didn't called stop cmd ctrl.
|
|
* so, we are make stop operation in this state.
|
|
*/
|
|
if (c_node->state == IPP_STATE_START) {
|
|
ipp_stop_property(drm_dev, ippdrv,
|
|
c_node);
|
|
c_node->state = IPP_STATE_STOP;
|
|
}
|
|
|
|
ippdrv->dedicated = false;
|
|
ipp_clean_cmd_node(ctx, c_node);
|
|
if (list_empty(&ippdrv->cmd_list))
|
|
pm_runtime_put_sync(ippdrv->dev);
|
|
}
|
|
}
|
|
mutex_unlock(&ippdrv->cmd_lock);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int ipp_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct ipp_context *ctx;
|
|
struct exynos_drm_subdrv *subdrv;
|
|
int ret;
|
|
|
|
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&ctx->ipp_lock);
|
|
mutex_init(&ctx->prop_lock);
|
|
|
|
idr_init(&ctx->ipp_idr);
|
|
idr_init(&ctx->prop_idr);
|
|
|
|
/*
|
|
* create single thread for ipp event
|
|
* IPP supports event thread for IPP drivers.
|
|
* IPP driver send event_work to this thread.
|
|
* and IPP event thread send event to user process.
|
|
*/
|
|
ctx->event_workq = create_singlethread_workqueue("ipp_event");
|
|
if (!ctx->event_workq) {
|
|
dev_err(dev, "failed to create event workqueue\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* create single thread for ipp command
|
|
* IPP supports command thread for user process.
|
|
* user process make command node using set property ioctl.
|
|
* and make start_work and send this work to command thread.
|
|
* and then this command thread start property.
|
|
*/
|
|
ctx->cmd_workq = create_singlethread_workqueue("ipp_cmd");
|
|
if (!ctx->cmd_workq) {
|
|
dev_err(dev, "failed to create cmd workqueue\n");
|
|
ret = -EINVAL;
|
|
goto err_event_workq;
|
|
}
|
|
|
|
/* set sub driver informations */
|
|
subdrv = &ctx->subdrv;
|
|
subdrv->dev = dev;
|
|
subdrv->probe = ipp_subdrv_probe;
|
|
subdrv->remove = ipp_subdrv_remove;
|
|
subdrv->open = ipp_subdrv_open;
|
|
subdrv->close = ipp_subdrv_close;
|
|
|
|
platform_set_drvdata(pdev, ctx);
|
|
|
|
ret = exynos_drm_subdrv_register(subdrv);
|
|
if (ret < 0) {
|
|
DRM_ERROR("failed to register drm ipp device.\n");
|
|
goto err_cmd_workq;
|
|
}
|
|
|
|
dev_info(dev, "drm ipp registered successfully.\n");
|
|
|
|
return 0;
|
|
|
|
err_cmd_workq:
|
|
destroy_workqueue(ctx->cmd_workq);
|
|
err_event_workq:
|
|
destroy_workqueue(ctx->event_workq);
|
|
return ret;
|
|
}
|
|
|
|
static int ipp_remove(struct platform_device *pdev)
|
|
{
|
|
struct ipp_context *ctx = platform_get_drvdata(pdev);
|
|
|
|
/* unregister sub driver */
|
|
exynos_drm_subdrv_unregister(&ctx->subdrv);
|
|
|
|
/* remove,destroy ipp idr */
|
|
idr_destroy(&ctx->ipp_idr);
|
|
idr_destroy(&ctx->prop_idr);
|
|
|
|
mutex_destroy(&ctx->ipp_lock);
|
|
mutex_destroy(&ctx->prop_lock);
|
|
|
|
/* destroy command, event work queue */
|
|
destroy_workqueue(ctx->cmd_workq);
|
|
destroy_workqueue(ctx->event_workq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct platform_driver ipp_driver = {
|
|
.probe = ipp_probe,
|
|
.remove = ipp_remove,
|
|
.driver = {
|
|
.name = "exynos-drm-ipp",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|