mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
Yongjie Zhu
78e99bfc22
PD#SWPL-78227 Problem: drm driver need use ion function Solution: move ion.h to common_driver/include Verify: s4d Change-Id: I06b800c9394a3337c7e44363768687ed917110f2 Signed-off-by: Yongjie Zhu <yongjie.zhu@amlogic.com>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#ifndef __LINUX_AMLOGIC_ION_H__
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#define __LINUX_AMLOGIC_ION_H__
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#include <linux/types.h>
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#include <linux/amlogic/ion.h>
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/**
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* CUSTOM IOCTL - CMD
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*/
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#define DION_ERROR(fmt, args ...) pr_err("ion_dev: " fmt, ## args)
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#define DION_INFO(fmt, args ...) pr_info("ion_dev: " fmt, ## args)
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#define DION_DEBUG(fmt, args ...) pr_debug("ion_dev: " fmt, ## args)
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#define ION_IOC_MESON_PHYS_ADDR 8
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#define ION_FLAG_EXTEND_MESON_HEAP_SECURE BIT(29)
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#define ION_FLAG_EXTEND_MESON_HEAP BIT(30)
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#define ION_FLAG_EXTEND_PROTECTED BIT(31)
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#define SECURE_MEM_DELAY_PROTECT 1
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struct ion_cma_heap {
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struct ion_heap heap;
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struct cma *cma;
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bool is_added;
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unsigned long max_can_alloc_size;
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unsigned long alloced_size;
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/* protect size account */
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struct mutex mutex;
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};
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struct meson_phys_data {
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int handle;
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unsigned int phys_addr;
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unsigned int size;
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};
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/**
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* meson_ion_share_fd_to_phys -
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* associate with a fd
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* @fd: passed from the user space
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* @addr point to the physical address
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* @size point to the size of this ion buffer
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*/
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int meson_ion_share_fd_to_phys(int fd, phys_addr_t *addr, size_t *len);
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void meson_ion_buffer_to_phys(struct ion_buffer *buffer,
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phys_addr_t *addr, size_t *len);
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unsigned int meson_ion_codecmm_heap_id_get(void);
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unsigned int meson_ion_cma_heap_id_get(void);
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unsigned int meson_ion_fb_heap_id_get(void);
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extern struct ion_heap_ops codec_mm_heap_ops;
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extern struct ion_heap_ops ion_cma_ops;
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#endif
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