mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
synced 2025-12-22 17:25:35 +03:00
1440655254
This change adds support for mailbox with mutex. In OESP/SB, GP mailboxes are used. Since they are mailbox with mutex, the driver needs to acquire mutex before using it. Jira SEC-15577 Signed-off-by: Jason Li (SW-TEGRA) <jasl@nvidia.com> Change-Id: I8bc95402b1a4fc7227058aded1d417cfa3e5fae6 Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3261139 GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: David Pu <dpu@nvidia.com>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only
|
|
* SPDX-FileCopyrightText: Copyright (c) 2020-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
*/
|
|
|
|
#ifndef TEGRA23X_PSC_H
|
|
#define TEGRA23X_PSC_H
|
|
|
|
#define MBOX_NUM 8
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mailbox_controller.h>
|
|
|
|
struct psc_mbox;
|
|
|
|
struct mbox_vm_chan {
|
|
unsigned int irq;
|
|
void __iomem *base;
|
|
struct psc_mbox *parent;
|
|
};
|
|
|
|
struct psc_mbox {
|
|
struct device *dev;
|
|
void __iomem *vm_chan_base;
|
|
struct mbox_chan chan[MBOX_NUM];
|
|
struct mbox_controller mbox;
|
|
struct mbox_vm_chan vm_chan[MBOX_NUM];
|
|
};
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
int psc_debugfs_create(struct platform_device *pdev, struct mbox_controller *mbox);
|
|
void psc_debugfs_remove(struct platform_device *pdev);
|
|
#else
|
|
/* We should probably never be here as this driver is useless without debugfs */
|
|
static inline int psc_debugfs_create(struct platform_device *pdev, struct mbox_controller *mbox)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void psc_debugfs_remove(struct platform_device *pdev) { return; }
|
|
#endif
|
|
|
|
struct mbox_chan *psc_mbox_request_channel0(struct mbox_controller *mbox, struct mbox_client *cl);
|
|
|
|
#if IS_ENABLED(CONFIG_NUMA)
|
|
#define PSC_HAVE_NUMA
|
|
#endif
|
|
|
|
#if defined(PSC_HAVE_NUMA)
|
|
u32 readl0(void __iomem *addr);
|
|
void writel0(u32 value, void __iomem *addr);
|
|
#else
|
|
#define readl0(addr) readl((addr))
|
|
#define writel0(value, addr) writel((value), (addr))
|
|
#endif
|
|
|
|
#endif
|