943 lines
25 KiB
C
943 lines
25 KiB
C
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/*
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* Copyright (C) 2017 Samsung Electronics Co.Ltd
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* Authors:
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* Marek Szyprowski <m.szyprowski@samsung.com>
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*
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* Exynos DRM Image Post Processing (IPP) related functions
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*/
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#include <linux/uaccess.h>
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#include <drm/drm_blend.h>
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#include <drm/drm_file.h>
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#include <drm/drm_fourcc.h>
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#include <drm/drm_mode.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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static int num_ipp;
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static LIST_HEAD(ipp_list);
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/**
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* exynos_drm_ipp_register - Register a new picture processor hardware module
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* @dev: DRM device
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* @ipp: ipp module to init
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* @funcs: callbacks for the new ipp object
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* @caps: bitmask of ipp capabilities (%DRM_EXYNOS_IPP_CAP_*)
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* @formats: array of supported formats
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* @num_formats: size of the supported formats array
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* @name: name (for debugging purposes)
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*
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* Initializes a ipp module.
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int exynos_drm_ipp_register(struct device *dev, struct exynos_drm_ipp *ipp,
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const struct exynos_drm_ipp_funcs *funcs, unsigned int caps,
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const struct exynos_drm_ipp_formats *formats,
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unsigned int num_formats, const char *name)
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{
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WARN_ON(!ipp);
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WARN_ON(!funcs);
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WARN_ON(!formats);
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WARN_ON(!num_formats);
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spin_lock_init(&ipp->lock);
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INIT_LIST_HEAD(&ipp->todo_list);
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init_waitqueue_head(&ipp->done_wq);
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ipp->dev = dev;
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ipp->funcs = funcs;
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ipp->capabilities = caps;
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ipp->name = name;
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ipp->formats = formats;
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ipp->num_formats = num_formats;
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/* ipp_list modification is serialized by component framework */
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list_add_tail(&ipp->head, &ipp_list);
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ipp->id = num_ipp++;
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DRM_DEV_DEBUG_DRIVER(dev, "Registered ipp %d\n", ipp->id);
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return 0;
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}
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/**
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* exynos_drm_ipp_unregister - Unregister the picture processor module
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* @dev: DRM device
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* @ipp: ipp module
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*/
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void exynos_drm_ipp_unregister(struct device *dev,
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struct exynos_drm_ipp *ipp)
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{
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WARN_ON(ipp->task);
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WARN_ON(!list_empty(&ipp->todo_list));
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list_del(&ipp->head);
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}
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/**
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* exynos_drm_ipp_get_res_ioctl - enumerate all ipp modules
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* @dev: DRM device
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* @data: ioctl data
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* @file_priv: DRM file info
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*
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* Construct a list of ipp ids.
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*
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* Called by the user via ioctl.
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*
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* Returns:
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* Zero on success, negative errno on failure.
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*/
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int exynos_drm_ipp_get_res_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_exynos_ioctl_ipp_get_res *resp = data;
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struct exynos_drm_ipp *ipp;
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uint32_t __user *ipp_ptr = (uint32_t __user *)
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(unsigned long)resp->ipp_id_ptr;
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unsigned int count = num_ipp, copied = 0;
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/*
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* This ioctl is called twice, once to determine how much space is
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* needed, and the 2nd time to fill it.
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*/
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if (count && resp->count_ipps >= count) {
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list_for_each_entry(ipp, &ipp_list, head) {
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if (put_user(ipp->id, ipp_ptr + copied))
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return -EFAULT;
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copied++;
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}
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}
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resp->count_ipps = count;
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return 0;
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}
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static inline struct exynos_drm_ipp *__ipp_get(uint32_t id)
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{
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struct exynos_drm_ipp *ipp;
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list_for_each_entry(ipp, &ipp_list, head)
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if (ipp->id == id)
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return ipp;
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return NULL;
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}
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/**
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* exynos_drm_ipp_get_caps_ioctl - get ipp module capabilities and formats
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* @dev: DRM device
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* @data: ioctl data
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* @file_priv: DRM file info
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*
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* Construct a structure describing ipp module capabilities.
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*
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* Called by the user via ioctl.
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*
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* Returns:
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* Zero on success, negative errno on failure.
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*/
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int exynos_drm_ipp_get_caps_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_exynos_ioctl_ipp_get_caps *resp = data;
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void __user *ptr = (void __user *)(unsigned long)resp->formats_ptr;
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struct exynos_drm_ipp *ipp;
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int i;
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ipp = __ipp_get(resp->ipp_id);
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if (!ipp)
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return -ENOENT;
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resp->ipp_id = ipp->id;
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resp->capabilities = ipp->capabilities;
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/*
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* This ioctl is called twice, once to determine how much space is
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* needed, and the 2nd time to fill it.
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*/
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if (resp->formats_count >= ipp->num_formats) {
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for (i = 0; i < ipp->num_formats; i++) {
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struct drm_exynos_ipp_format tmp = {
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.fourcc = ipp->formats[i].fourcc,
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.type = ipp->formats[i].type,
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.modifier = ipp->formats[i].modifier,
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};
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if (copy_to_user(ptr, &tmp, sizeof(tmp)))
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return -EFAULT;
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ptr += sizeof(tmp);
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}
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}
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resp->formats_count = ipp->num_formats;
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return 0;
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}
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static inline const struct exynos_drm_ipp_formats *__ipp_format_get(
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struct exynos_drm_ipp *ipp, uint32_t fourcc,
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uint64_t mod, unsigned int type)
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{
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int i;
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for (i = 0; i < ipp->num_formats; i++) {
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if ((ipp->formats[i].type & type) &&
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ipp->formats[i].fourcc == fourcc &&
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ipp->formats[i].modifier == mod)
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return &ipp->formats[i];
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}
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return NULL;
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}
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/**
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* exynos_drm_ipp_get_limits_ioctl - get ipp module limits
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* @dev: DRM device
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* @data: ioctl data
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* @file_priv: DRM file info
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*
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* Construct a structure describing ipp module limitations for provided
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* picture format.
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*
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* Called by the user via ioctl.
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*
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* Returns:
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* Zero on success, negative errno on failure.
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*/
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int exynos_drm_ipp_get_limits_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_exynos_ioctl_ipp_get_limits *resp = data;
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void __user *ptr = (void __user *)(unsigned long)resp->limits_ptr;
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const struct exynos_drm_ipp_formats *format;
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struct exynos_drm_ipp *ipp;
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if (resp->type != DRM_EXYNOS_IPP_FORMAT_SOURCE &&
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resp->type != DRM_EXYNOS_IPP_FORMAT_DESTINATION)
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return -EINVAL;
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ipp = __ipp_get(resp->ipp_id);
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if (!ipp)
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return -ENOENT;
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format = __ipp_format_get(ipp, resp->fourcc, resp->modifier,
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resp->type);
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if (!format)
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return -EINVAL;
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/*
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* This ioctl is called twice, once to determine how much space is
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* needed, and the 2nd time to fill it.
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*/
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if (format->num_limits && resp->limits_count >= format->num_limits)
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if (copy_to_user((void __user *)ptr, format->limits,
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sizeof(*format->limits) * format->num_limits))
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return -EFAULT;
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resp->limits_count = format->num_limits;
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return 0;
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}
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struct drm_pending_exynos_ipp_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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static inline struct exynos_drm_ipp_task *
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exynos_drm_ipp_task_alloc(struct exynos_drm_ipp *ipp)
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{
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struct exynos_drm_ipp_task *task;
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task = kzalloc(sizeof(*task), GFP_KERNEL);
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if (!task)
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return NULL;
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task->dev = ipp->dev;
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task->ipp = ipp;
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/* some defaults */
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task->src.rect.w = task->dst.rect.w = UINT_MAX;
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task->src.rect.h = task->dst.rect.h = UINT_MAX;
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task->transform.rotation = DRM_MODE_ROTATE_0;
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|
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DRM_DEV_DEBUG_DRIVER(task->dev, "Allocated task %pK\n", task);
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return task;
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}
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static const struct exynos_drm_param_map {
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unsigned int id;
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unsigned int size;
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unsigned int offset;
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} exynos_drm_ipp_params_maps[] = {
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{
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DRM_EXYNOS_IPP_TASK_BUFFER | DRM_EXYNOS_IPP_TASK_TYPE_SOURCE,
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sizeof(struct drm_exynos_ipp_task_buffer),
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offsetof(struct exynos_drm_ipp_task, src.buf),
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}, {
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DRM_EXYNOS_IPP_TASK_BUFFER |
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DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION,
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sizeof(struct drm_exynos_ipp_task_buffer),
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offsetof(struct exynos_drm_ipp_task, dst.buf),
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}, {
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DRM_EXYNOS_IPP_TASK_RECTANGLE | DRM_EXYNOS_IPP_TASK_TYPE_SOURCE,
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sizeof(struct drm_exynos_ipp_task_rect),
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offsetof(struct exynos_drm_ipp_task, src.rect),
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}, {
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DRM_EXYNOS_IPP_TASK_RECTANGLE |
|
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|
DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION,
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sizeof(struct drm_exynos_ipp_task_rect),
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offsetof(struct exynos_drm_ipp_task, dst.rect),
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}, {
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DRM_EXYNOS_IPP_TASK_TRANSFORM,
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sizeof(struct drm_exynos_ipp_task_transform),
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offsetof(struct exynos_drm_ipp_task, transform),
|
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}, {
|
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|
DRM_EXYNOS_IPP_TASK_ALPHA,
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sizeof(struct drm_exynos_ipp_task_alpha),
|
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offsetof(struct exynos_drm_ipp_task, alpha),
|
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|
},
|
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|
};
|
||
|
|
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static int exynos_drm_ipp_task_set(struct exynos_drm_ipp_task *task,
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struct drm_exynos_ioctl_ipp_commit *arg)
|
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{
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const struct exynos_drm_param_map *map = exynos_drm_ipp_params_maps;
|
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void __user *params = (void __user *)(unsigned long)arg->params_ptr;
|
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|
unsigned int size = arg->params_size;
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|
uint32_t id;
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int i;
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|
|
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|
while (size) {
|
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|
if (get_user(id, (uint32_t __user *)params))
|
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|
return -EFAULT;
|
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|
|
||
|
for (i = 0; i < ARRAY_SIZE(exynos_drm_ipp_params_maps); i++)
|
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if (map[i].id == id)
|
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|
break;
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if (i == ARRAY_SIZE(exynos_drm_ipp_params_maps) ||
|
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|
map[i].size > size)
|
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|
return -EINVAL;
|
||
|
|
||
|
if (copy_from_user((void *)task + map[i].offset, params,
|
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|
map[i].size))
|
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|
return -EFAULT;
|
||
|
|
||
|
params += map[i].size;
|
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|
size -= map[i].size;
|
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|
}
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev,
|
||
|
"Got task %pK configuration from userspace\n",
|
||
|
task);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_task_setup_buffer(struct exynos_drm_ipp_buffer *buf,
|
||
|
struct drm_file *filp)
|
||
|
{
|
||
|
int ret = 0;
|
||
|
int i;
|
||
|
|
||
|
/* get GEM buffers and check their size */
|
||
|
for (i = 0; i < buf->format->num_planes; i++) {
|
||
|
unsigned int height = (i == 0) ? buf->buf.height :
|
||
|
DIV_ROUND_UP(buf->buf.height, buf->format->vsub);
|
||
|
unsigned long size = height * buf->buf.pitch[i];
|
||
|
struct exynos_drm_gem *gem = exynos_drm_gem_get(filp,
|
||
|
buf->buf.gem_id[i]);
|
||
|
if (!gem) {
|
||
|
ret = -ENOENT;
|
||
|
goto gem_free;
|
||
|
}
|
||
|
buf->exynos_gem[i] = gem;
|
||
|
|
||
|
if (size + buf->buf.offset[i] > buf->exynos_gem[i]->size) {
|
||
|
i++;
|
||
|
ret = -EINVAL;
|
||
|
goto gem_free;
|
||
|
}
|
||
|
buf->dma_addr[i] = buf->exynos_gem[i]->dma_addr +
|
||
|
buf->buf.offset[i];
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
gem_free:
|
||
|
while (i--) {
|
||
|
exynos_drm_gem_put(buf->exynos_gem[i]);
|
||
|
buf->exynos_gem[i] = NULL;
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_task_release_buf(struct exynos_drm_ipp_buffer *buf)
|
||
|
{
|
||
|
int i;
|
||
|
|
||
|
if (!buf->exynos_gem[0])
|
||
|
return;
|
||
|
for (i = 0; i < buf->format->num_planes; i++)
|
||
|
exynos_drm_gem_put(buf->exynos_gem[i]);
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_task_free(struct exynos_drm_ipp *ipp,
|
||
|
struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "Freeing task %pK\n", task);
|
||
|
|
||
|
exynos_drm_ipp_task_release_buf(&task->src);
|
||
|
exynos_drm_ipp_task_release_buf(&task->dst);
|
||
|
if (task->event)
|
||
|
drm_event_cancel_free(ipp->drm_dev, &task->event->base);
|
||
|
kfree(task);
|
||
|
}
|
||
|
|
||
|
struct drm_ipp_limit {
|
||
|
struct drm_exynos_ipp_limit_val h;
|
||
|
struct drm_exynos_ipp_limit_val v;
|
||
|
};
|
||
|
|
||
|
enum drm_ipp_size_id {
|
||
|
IPP_LIMIT_BUFFER, IPP_LIMIT_AREA, IPP_LIMIT_ROTATED, IPP_LIMIT_MAX
|
||
|
};
|
||
|
|
||
|
static const enum drm_exynos_ipp_limit_type limit_id_fallback[IPP_LIMIT_MAX][4] = {
|
||
|
[IPP_LIMIT_BUFFER] = { DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER },
|
||
|
[IPP_LIMIT_AREA] = { DRM_EXYNOS_IPP_LIMIT_SIZE_AREA,
|
||
|
DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER },
|
||
|
[IPP_LIMIT_ROTATED] = { DRM_EXYNOS_IPP_LIMIT_SIZE_ROTATED,
|
||
|
DRM_EXYNOS_IPP_LIMIT_SIZE_AREA,
|
||
|
DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER },
|
||
|
};
|
||
|
|
||
|
static inline void __limit_set_val(unsigned int *ptr, unsigned int val)
|
||
|
{
|
||
|
if (!*ptr)
|
||
|
*ptr = val;
|
||
|
}
|
||
|
|
||
|
static void __get_size_limit(const struct drm_exynos_ipp_limit *limits,
|
||
|
unsigned int num_limits, enum drm_ipp_size_id id,
|
||
|
struct drm_ipp_limit *res)
|
||
|
{
|
||
|
const struct drm_exynos_ipp_limit *l = limits;
|
||
|
int i = 0;
|
||
|
|
||
|
memset(res, 0, sizeof(*res));
|
||
|
for (i = 0; limit_id_fallback[id][i]; i++)
|
||
|
for (l = limits; l - limits < num_limits; l++) {
|
||
|
if (((l->type & DRM_EXYNOS_IPP_LIMIT_TYPE_MASK) !=
|
||
|
DRM_EXYNOS_IPP_LIMIT_TYPE_SIZE) ||
|
||
|
((l->type & DRM_EXYNOS_IPP_LIMIT_SIZE_MASK) !=
|
||
|
limit_id_fallback[id][i]))
|
||
|
continue;
|
||
|
__limit_set_val(&res->h.min, l->h.min);
|
||
|
__limit_set_val(&res->h.max, l->h.max);
|
||
|
__limit_set_val(&res->h.align, l->h.align);
|
||
|
__limit_set_val(&res->v.min, l->v.min);
|
||
|
__limit_set_val(&res->v.max, l->v.max);
|
||
|
__limit_set_val(&res->v.align, l->v.align);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static inline bool __align_check(unsigned int val, unsigned int align)
|
||
|
{
|
||
|
if (align && (val & (align - 1))) {
|
||
|
DRM_DEBUG_DRIVER("Value %d exceeds HW limits (align %d)\n",
|
||
|
val, align);
|
||
|
return false;
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
static inline bool __size_limit_check(unsigned int val,
|
||
|
struct drm_exynos_ipp_limit_val *l)
|
||
|
{
|
||
|
if ((l->min && val < l->min) || (l->max && val > l->max)) {
|
||
|
DRM_DEBUG_DRIVER("Value %d exceeds HW limits (min %d, max %d)\n",
|
||
|
val, l->min, l->max);
|
||
|
return false;
|
||
|
}
|
||
|
return __align_check(val, l->align);
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_check_size_limits(struct exynos_drm_ipp_buffer *buf,
|
||
|
const struct drm_exynos_ipp_limit *limits, unsigned int num_limits,
|
||
|
bool rotate, bool swap)
|
||
|
{
|
||
|
enum drm_ipp_size_id id = rotate ? IPP_LIMIT_ROTATED : IPP_LIMIT_AREA;
|
||
|
struct drm_ipp_limit l;
|
||
|
struct drm_exynos_ipp_limit_val *lh = &l.h, *lv = &l.v;
|
||
|
int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
|
||
|
|
||
|
if (!limits)
|
||
|
return 0;
|
||
|
|
||
|
__get_size_limit(limits, num_limits, IPP_LIMIT_BUFFER, &l);
|
||
|
if (!__size_limit_check(real_width, &l.h) ||
|
||
|
!__size_limit_check(buf->buf.height, &l.v))
|
||
|
return -EINVAL;
|
||
|
|
||
|
if (swap) {
|
||
|
lv = &l.h;
|
||
|
lh = &l.v;
|
||
|
}
|
||
|
__get_size_limit(limits, num_limits, id, &l);
|
||
|
if (!__size_limit_check(buf->rect.w, lh) ||
|
||
|
!__align_check(buf->rect.x, lh->align) ||
|
||
|
!__size_limit_check(buf->rect.h, lv) ||
|
||
|
!__align_check(buf->rect.y, lv->align))
|
||
|
return -EINVAL;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static inline bool __scale_limit_check(unsigned int src, unsigned int dst,
|
||
|
unsigned int min, unsigned int max)
|
||
|
{
|
||
|
if ((max && (dst << 16) > src * max) ||
|
||
|
(min && (dst << 16) < src * min)) {
|
||
|
DRM_DEBUG_DRIVER("Scale from %d to %d exceeds HW limits (ratio min %d.%05d, max %d.%05d)\n",
|
||
|
src, dst,
|
||
|
min >> 16, 100000 * (min & 0xffff) / (1 << 16),
|
||
|
max >> 16, 100000 * (max & 0xffff) / (1 << 16));
|
||
|
return false;
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_check_scale_limits(
|
||
|
struct drm_exynos_ipp_task_rect *src,
|
||
|
struct drm_exynos_ipp_task_rect *dst,
|
||
|
const struct drm_exynos_ipp_limit *limits,
|
||
|
unsigned int num_limits, bool swap)
|
||
|
{
|
||
|
const struct drm_exynos_ipp_limit_val *lh, *lv;
|
||
|
int dw, dh;
|
||
|
|
||
|
for (; num_limits; limits++, num_limits--)
|
||
|
if ((limits->type & DRM_EXYNOS_IPP_LIMIT_TYPE_MASK) ==
|
||
|
DRM_EXYNOS_IPP_LIMIT_TYPE_SCALE)
|
||
|
break;
|
||
|
if (!num_limits)
|
||
|
return 0;
|
||
|
|
||
|
lh = (!swap) ? &limits->h : &limits->v;
|
||
|
lv = (!swap) ? &limits->v : &limits->h;
|
||
|
dw = (!swap) ? dst->w : dst->h;
|
||
|
dh = (!swap) ? dst->h : dst->w;
|
||
|
|
||
|
if (!__scale_limit_check(src->w, dw, lh->min, lh->max) ||
|
||
|
!__scale_limit_check(src->h, dh, lv->min, lv->max))
|
||
|
return -EINVAL;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_check_format(struct exynos_drm_ipp_task *task,
|
||
|
struct exynos_drm_ipp_buffer *buf,
|
||
|
struct exynos_drm_ipp_buffer *src,
|
||
|
struct exynos_drm_ipp_buffer *dst,
|
||
|
bool rotate, bool swap)
|
||
|
{
|
||
|
const struct exynos_drm_ipp_formats *fmt;
|
||
|
int ret, i;
|
||
|
|
||
|
fmt = __ipp_format_get(task->ipp, buf->buf.fourcc, buf->buf.modifier,
|
||
|
buf == src ? DRM_EXYNOS_IPP_FORMAT_SOURCE :
|
||
|
DRM_EXYNOS_IPP_FORMAT_DESTINATION);
|
||
|
if (!fmt) {
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev,
|
||
|
"Task %pK: %s format not supported\n",
|
||
|
task, buf == src ? "src" : "dst");
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
/* basic checks */
|
||
|
if (buf->buf.width == 0 || buf->buf.height == 0)
|
||
|
return -EINVAL;
|
||
|
|
||
|
buf->format = drm_format_info(buf->buf.fourcc);
|
||
|
for (i = 0; i < buf->format->num_planes; i++) {
|
||
|
unsigned int width = (i == 0) ? buf->buf.width :
|
||
|
DIV_ROUND_UP(buf->buf.width, buf->format->hsub);
|
||
|
|
||
|
if (buf->buf.pitch[i] == 0)
|
||
|
buf->buf.pitch[i] = width * buf->format->cpp[i];
|
||
|
if (buf->buf.pitch[i] < width * buf->format->cpp[i])
|
||
|
return -EINVAL;
|
||
|
if (!buf->buf.gem_id[i])
|
||
|
return -ENOENT;
|
||
|
}
|
||
|
|
||
|
/* pitch for additional planes must match */
|
||
|
if (buf->format->num_planes > 2 &&
|
||
|
buf->buf.pitch[1] != buf->buf.pitch[2])
|
||
|
return -EINVAL;
|
||
|
|
||
|
/* check driver limits */
|
||
|
ret = exynos_drm_ipp_check_size_limits(buf, fmt->limits,
|
||
|
fmt->num_limits,
|
||
|
rotate,
|
||
|
buf == dst ? swap : false);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
|
||
|
fmt->limits,
|
||
|
fmt->num_limits, swap);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
struct exynos_drm_ipp *ipp = task->ipp;
|
||
|
struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst;
|
||
|
unsigned int rotation = task->transform.rotation;
|
||
|
int ret = 0;
|
||
|
bool swap = drm_rotation_90_or_270(rotation);
|
||
|
bool rotate = (rotation != DRM_MODE_ROTATE_0);
|
||
|
bool scale = false;
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "Checking task %pK\n", task);
|
||
|
|
||
|
if (src->rect.w == UINT_MAX)
|
||
|
src->rect.w = src->buf.width;
|
||
|
if (src->rect.h == UINT_MAX)
|
||
|
src->rect.h = src->buf.height;
|
||
|
if (dst->rect.w == UINT_MAX)
|
||
|
dst->rect.w = dst->buf.width;
|
||
|
if (dst->rect.h == UINT_MAX)
|
||
|
dst->rect.h = dst->buf.height;
|
||
|
|
||
|
if (src->rect.x + src->rect.w > (src->buf.width) ||
|
||
|
src->rect.y + src->rect.h > (src->buf.height) ||
|
||
|
dst->rect.x + dst->rect.w > (dst->buf.width) ||
|
||
|
dst->rect.y + dst->rect.h > (dst->buf.height)) {
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev,
|
||
|
"Task %pK: defined area is outside provided buffers\n",
|
||
|
task);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if ((!swap && (src->rect.w != dst->rect.w ||
|
||
|
src->rect.h != dst->rect.h)) ||
|
||
|
(swap && (src->rect.w != dst->rect.h ||
|
||
|
src->rect.h != dst->rect.w)))
|
||
|
scale = true;
|
||
|
|
||
|
if ((!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_CROP) &&
|
||
|
(src->rect.x || src->rect.y || dst->rect.x || dst->rect.y)) ||
|
||
|
(!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_ROTATE) && rotate) ||
|
||
|
(!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_SCALE) && scale) ||
|
||
|
(!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_CONVERT) &&
|
||
|
src->buf.fourcc != dst->buf.fourcc)) {
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "Task %pK: hw capabilities exceeded\n",
|
||
|
task);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
ret = exynos_drm_ipp_check_format(task, src, src, dst, rotate, swap);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = exynos_drm_ipp_check_format(task, dst, src, dst, false, swap);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(ipp->dev, "Task %pK: all checks done.\n",
|
||
|
task);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_task_setup_buffers(struct exynos_drm_ipp_task *task,
|
||
|
struct drm_file *filp)
|
||
|
{
|
||
|
struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst;
|
||
|
int ret = 0;
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "Setting buffer for task %pK\n",
|
||
|
task);
|
||
|
|
||
|
ret = exynos_drm_ipp_task_setup_buffer(src, filp);
|
||
|
if (ret) {
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev,
|
||
|
"Task %pK: src buffer setup failed\n",
|
||
|
task);
|
||
|
return ret;
|
||
|
}
|
||
|
ret = exynos_drm_ipp_task_setup_buffer(dst, filp);
|
||
|
if (ret) {
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev,
|
||
|
"Task %pK: dst buffer setup failed\n",
|
||
|
task);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "Task %pK: buffers prepared.\n",
|
||
|
task);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
static int exynos_drm_ipp_event_create(struct exynos_drm_ipp_task *task,
|
||
|
struct drm_file *file_priv, uint64_t user_data)
|
||
|
{
|
||
|
struct drm_pending_exynos_ipp_event *e = NULL;
|
||
|
int ret;
|
||
|
|
||
|
e = kzalloc(sizeof(*e), GFP_KERNEL);
|
||
|
if (!e)
|
||
|
return -ENOMEM;
|
||
|
|
||
|
e->event.base.type = DRM_EXYNOS_IPP_EVENT;
|
||
|
e->event.base.length = sizeof(e->event);
|
||
|
e->event.user_data = user_data;
|
||
|
|
||
|
ret = drm_event_reserve_init(task->ipp->drm_dev, file_priv, &e->base,
|
||
|
&e->event.base);
|
||
|
if (ret)
|
||
|
goto free;
|
||
|
|
||
|
task->event = e;
|
||
|
return 0;
|
||
|
free:
|
||
|
kfree(e);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_event_send(struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
struct timespec64 now;
|
||
|
|
||
|
ktime_get_ts64(&now);
|
||
|
task->event->event.tv_sec = now.tv_sec;
|
||
|
task->event->event.tv_usec = now.tv_nsec / NSEC_PER_USEC;
|
||
|
task->event->event.sequence = atomic_inc_return(&task->ipp->sequence);
|
||
|
|
||
|
drm_send_event(task->ipp->drm_dev, &task->event->base);
|
||
|
}
|
||
|
|
||
|
static int exynos_drm_ipp_task_cleanup(struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
int ret = task->ret;
|
||
|
|
||
|
if (ret == 0 && task->event) {
|
||
|
exynos_drm_ipp_event_send(task);
|
||
|
/* ensure event won't be canceled on task free */
|
||
|
task->event = NULL;
|
||
|
}
|
||
|
|
||
|
exynos_drm_ipp_task_free(task->ipp, task);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_cleanup_work(struct work_struct *work)
|
||
|
{
|
||
|
struct exynos_drm_ipp_task *task = container_of(work,
|
||
|
struct exynos_drm_ipp_task, cleanup_work);
|
||
|
|
||
|
exynos_drm_ipp_task_cleanup(task);
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_next_task(struct exynos_drm_ipp *ipp);
|
||
|
|
||
|
/**
|
||
|
* exynos_drm_ipp_task_done - finish given task and set return code
|
||
|
* @task: ipp task to finish
|
||
|
* @ret: error code or 0 if operation has been performed successfully
|
||
|
*/
|
||
|
void exynos_drm_ipp_task_done(struct exynos_drm_ipp_task *task, int ret)
|
||
|
{
|
||
|
struct exynos_drm_ipp *ipp = task->ipp;
|
||
|
unsigned long flags;
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(task->dev, "ipp: %d, task %pK done: %d\n",
|
||
|
ipp->id, task, ret);
|
||
|
|
||
|
spin_lock_irqsave(&ipp->lock, flags);
|
||
|
if (ipp->task == task)
|
||
|
ipp->task = NULL;
|
||
|
task->flags |= DRM_EXYNOS_IPP_TASK_DONE;
|
||
|
task->ret = ret;
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
|
||
|
exynos_drm_ipp_next_task(ipp);
|
||
|
wake_up(&ipp->done_wq);
|
||
|
|
||
|
if (task->flags & DRM_EXYNOS_IPP_TASK_ASYNC) {
|
||
|
INIT_WORK(&task->cleanup_work, exynos_drm_ipp_cleanup_work);
|
||
|
schedule_work(&task->cleanup_work);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_next_task(struct exynos_drm_ipp *ipp)
|
||
|
{
|
||
|
struct exynos_drm_ipp_task *task;
|
||
|
unsigned long flags;
|
||
|
int ret;
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(ipp->dev, "ipp: %d, try to run new task\n",
|
||
|
ipp->id);
|
||
|
|
||
|
spin_lock_irqsave(&ipp->lock, flags);
|
||
|
|
||
|
if (ipp->task || list_empty(&ipp->todo_list)) {
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
task = list_first_entry(&ipp->todo_list, struct exynos_drm_ipp_task,
|
||
|
head);
|
||
|
list_del_init(&task->head);
|
||
|
ipp->task = task;
|
||
|
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
|
||
|
DRM_DEV_DEBUG_DRIVER(ipp->dev,
|
||
|
"ipp: %d, selected task %pK to run\n", ipp->id,
|
||
|
task);
|
||
|
|
||
|
ret = ipp->funcs->commit(ipp, task);
|
||
|
if (ret)
|
||
|
exynos_drm_ipp_task_done(task, ret);
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_schedule_task(struct exynos_drm_ipp *ipp,
|
||
|
struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
unsigned long flags;
|
||
|
|
||
|
spin_lock_irqsave(&ipp->lock, flags);
|
||
|
list_add(&task->head, &ipp->todo_list);
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
|
||
|
exynos_drm_ipp_next_task(ipp);
|
||
|
}
|
||
|
|
||
|
static void exynos_drm_ipp_task_abort(struct exynos_drm_ipp *ipp,
|
||
|
struct exynos_drm_ipp_task *task)
|
||
|
{
|
||
|
unsigned long flags;
|
||
|
|
||
|
spin_lock_irqsave(&ipp->lock, flags);
|
||
|
if (task->flags & DRM_EXYNOS_IPP_TASK_DONE) {
|
||
|
/* already completed task */
|
||
|
exynos_drm_ipp_task_cleanup(task);
|
||
|
} else if (ipp->task != task) {
|
||
|
/* task has not been scheduled for execution yet */
|
||
|
list_del_init(&task->head);
|
||
|
exynos_drm_ipp_task_cleanup(task);
|
||
|
} else {
|
||
|
/*
|
||
|
* currently processed task, call abort() and perform
|
||
|
* cleanup with async worker
|
||
|
*/
|
||
|
task->flags |= DRM_EXYNOS_IPP_TASK_ASYNC;
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
if (ipp->funcs->abort)
|
||
|
ipp->funcs->abort(ipp, task);
|
||
|
return;
|
||
|
}
|
||
|
spin_unlock_irqrestore(&ipp->lock, flags);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* exynos_drm_ipp_commit_ioctl - perform image processing operation
|
||
|
* @dev: DRM device
|
||
|
* @data: ioctl data
|
||
|
* @file_priv: DRM file info
|
||
|
*
|
||
|
* Construct a ipp task from the set of properties provided from the user
|
||
|
* and try to schedule it to framebuffer processor hardware.
|
||
|
*
|
||
|
* Called by the user via ioctl.
|
||
|
*
|
||
|
* Returns:
|
||
|
* Zero on success, negative errno on failure.
|
||
|
*/
|
||
|
int exynos_drm_ipp_commit_ioctl(struct drm_device *dev, void *data,
|
||
|
struct drm_file *file_priv)
|
||
|
{
|
||
|
struct drm_exynos_ioctl_ipp_commit *arg = data;
|
||
|
struct exynos_drm_ipp *ipp;
|
||
|
struct exynos_drm_ipp_task *task;
|
||
|
int ret = 0;
|
||
|
|
||
|
if ((arg->flags & ~DRM_EXYNOS_IPP_FLAGS) || arg->reserved)
|
||
|
return -EINVAL;
|
||
|
|
||
|
/* can't test and expect an event at the same time */
|
||
|
if ((arg->flags & DRM_EXYNOS_IPP_FLAG_TEST_ONLY) &&
|
||
|
(arg->flags & DRM_EXYNOS_IPP_FLAG_EVENT))
|
||
|
return -EINVAL;
|
||
|
|
||
|
ipp = __ipp_get(arg->ipp_id);
|
||
|
if (!ipp)
|
||
|
return -ENOENT;
|
||
|
|
||
|
task = exynos_drm_ipp_task_alloc(ipp);
|
||
|
if (!task)
|
||
|
return -ENOMEM;
|
||
|
|
||
|
ret = exynos_drm_ipp_task_set(task, arg);
|
||
|
if (ret)
|
||
|
goto free;
|
||
|
|
||
|
ret = exynos_drm_ipp_task_check(task);
|
||
|
if (ret)
|
||
|
goto free;
|
||
|
|
||
|
ret = exynos_drm_ipp_task_setup_buffers(task, file_priv);
|
||
|
if (ret || arg->flags & DRM_EXYNOS_IPP_FLAG_TEST_ONLY)
|
||
|
goto free;
|
||
|
|
||
|
if (arg->flags & DRM_EXYNOS_IPP_FLAG_EVENT) {
|
||
|
ret = exynos_drm_ipp_event_create(task, file_priv,
|
||
|
arg->user_data);
|
||
|
if (ret)
|
||
|
goto free;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Queue task for processing on the hardware. task object will be
|
||
|
* then freed after exynos_drm_ipp_task_done()
|
||
|
*/
|
||
|
if (arg->flags & DRM_EXYNOS_IPP_FLAG_NONBLOCK) {
|
||
|
DRM_DEV_DEBUG_DRIVER(ipp->dev,
|
||
|
"ipp: %d, nonblocking processing task %pK\n",
|
||
|
ipp->id, task);
|
||
|
|
||
|
task->flags |= DRM_EXYNOS_IPP_TASK_ASYNC;
|
||
|
exynos_drm_ipp_schedule_task(task->ipp, task);
|
||
|
ret = 0;
|
||
|
} else {
|
||
|
DRM_DEV_DEBUG_DRIVER(ipp->dev, "ipp: %d, processing task %pK\n",
|
||
|
ipp->id, task);
|
||
|
exynos_drm_ipp_schedule_task(ipp, task);
|
||
|
ret = wait_event_interruptible(ipp->done_wq,
|
||
|
task->flags & DRM_EXYNOS_IPP_TASK_DONE);
|
||
|
if (ret)
|
||
|
exynos_drm_ipp_task_abort(ipp, task);
|
||
|
else
|
||
|
ret = exynos_drm_ipp_task_cleanup(task);
|
||
|
}
|
||
|
return ret;
|
||
|
free:
|
||
|
exynos_drm_ipp_task_free(ipp, task);
|
||
|
|
||
|
return ret;
|
||
|
}
|