69c26a7f62
This is a snapshot of mdss driver from msm-4.14 as of commit '15e898828d1e (fbdev: msm: Avoid UAF in mdss_dsi_cmd_write)'. Change-Id: I16fe01fd45855d5c268c210ec61f09c6fa625761 Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org> Signed-off-by: Althaf Neelanchirayil <aneelanc@codeaurora.org>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* Copyright (c) 2017, 2020, The Linux Foundation. All rights reserved. */
|
|
|
|
#ifndef MDSS_SMMU_EXT_H
|
|
#define MDSS_SMMU_EXT_H
|
|
|
|
/**
|
|
* struct msm_smmu:interface exposed to the clients which use smmu driver.
|
|
* @dev: smmu device for attach/dettach
|
|
* @domain: domain for the context bank.
|
|
* @is_secure: bool variable to check for secure domain.
|
|
* @iommu_ctrl: iommu ctrl function for enable/disable attach.
|
|
* @secure_session_ctrl: ctrl function for enable/disable session.
|
|
* @wait_for_transition:function to wait till secure transtion is complete.
|
|
* @reg_lock /reg_unlock: Lock to access shared registers.
|
|
*/
|
|
struct mdss_smmu_intf {
|
|
struct device *dev;
|
|
int domain;
|
|
bool is_secure;
|
|
int (*iommu_ctrl)(int i);
|
|
int (*secure_session_ctrl)(int i);
|
|
int (*wait_for_transition)(int state, int request);
|
|
void (*reg_lock)(void);
|
|
void (*reg_unlock)(void);
|
|
bool (*handoff_pending)(void);
|
|
};
|
|
|
|
typedef void (*msm_smmu_handler_t) (struct mdss_smmu_intf *smmu);
|
|
|
|
/**
|
|
* mdss_smmu_request_mappings: function to request smmu mappings.
|
|
* Client driver can request smmu dev via this API.
|
|
* dev will be returned in the same call context
|
|
* if probe is not finished then dev will be
|
|
* returned once it is completed.
|
|
* @callback: callback function that is called to return smmu
|
|
* dev
|
|
*/
|
|
#ifdef CONFIG_FB_MSM_MDSS
|
|
int mdss_smmu_request_mappings(msm_smmu_handler_t callback);
|
|
#else
|
|
static inline int mdss_smmu_request_mappings(msm_smmu_handler_t callback)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
#endif /* MDSS_SMMU_EXT_H */
|