mirror of
https://github.com/torvalds/linux
synced 2024-10-28 14:18:20 +00:00
bca10b906f
Handling System MMUs with an identifier is not flexible to manage System MMU platform devices because of the following reasons: 1. A device driver which needs to handle System MMU must know the ID. 2. A System MMU may not present in some implementations of Exynos family. 3. Handling System MMU with IOMMU API does not require an ID. This patch is the result of removing ID of System MMUs. Instead, a device driver that needs to handle its System MMU must use IOMMU API while its descriptor of platform device is given. This patch also includes the following enhancements: - A System MMU device becomes a child if its power domain device. - clkdev Signed-off-by: KyongHo Cho <pullip.cho@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* EXYNOS - System MMU support
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _ARM_MACH_EXYNOS_SYSMMU_H_
|
|
#define _ARM_MACH_EXYNOS_SYSMMU_H_
|
|
|
|
struct sysmmu_platform_data {
|
|
char *dbgname;
|
|
/* comma(,) separated list of clock names for clock gating */
|
|
char *clockname;
|
|
};
|
|
|
|
#define SYSMMU_DEVNAME_BASE "exynos-sysmmu"
|
|
|
|
#define SYSMMU_CLOCK_NAME "sysmmu"
|
|
#define SYSMMU_CLOCK_NAME2 "sysmmu_mc"
|
|
|
|
#ifdef CONFIG_EXYNOS_DEV_SYSMMU
|
|
#include <linux/device.h>
|
|
struct platform_device;
|
|
|
|
#define SYSMMU_PLATDEV(ipname) exynos_device_sysmmu_##ipname
|
|
|
|
extern struct platform_device SYSMMU_PLATDEV(mfc_l);
|
|
extern struct platform_device SYSMMU_PLATDEV(mfc_r);
|
|
extern struct platform_device SYSMMU_PLATDEV(tv);
|
|
extern struct platform_device SYSMMU_PLATDEV(jpeg);
|
|
extern struct platform_device SYSMMU_PLATDEV(rot);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimc0);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimc1);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimc2);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimc3);
|
|
extern struct platform_device SYSMMU_PLATDEV(gsc0);
|
|
extern struct platform_device SYSMMU_PLATDEV(gsc1);
|
|
extern struct platform_device SYSMMU_PLATDEV(gsc2);
|
|
extern struct platform_device SYSMMU_PLATDEV(gsc3);
|
|
extern struct platform_device SYSMMU_PLATDEV(isp);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimd0);
|
|
extern struct platform_device SYSMMU_PLATDEV(fimd1);
|
|
extern struct platform_device SYSMMU_PLATDEV(camif0);
|
|
extern struct platform_device SYSMMU_PLATDEV(camif1);
|
|
extern struct platform_device SYSMMU_PLATDEV(2d);
|
|
|
|
#ifdef CONFIG_IOMMU_API
|
|
static inline void platform_set_sysmmu(
|
|
struct device *sysmmu, struct device *dev)
|
|
{
|
|
dev->archdata.iommu = sysmmu;
|
|
}
|
|
#endif
|
|
|
|
#else /* !CONFIG_EXYNOS_DEV_SYSMMU */
|
|
#define platform_set_sysmmu(dev, sysmmu) do { } while (0)
|
|
#endif
|
|
|
|
#define SYSMMU_CLOCK_DEVNAME(ipname, id) (SYSMMU_DEVNAME_BASE "." #id)
|
|
|
|
#endif /* _ARM_MACH_EXYNOS_SYSMMU_H_ */
|