mirror of https://gitee.com/openkylin/linux.git
131 lines
2.5 KiB
C
131 lines
2.5 KiB
C
/*
|
|
* Copyright (C) 2014 NVIDIA Corporation
|
|
*
|
|
* 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 __SOC_TEGRA_MC_H__
|
|
#define __SOC_TEGRA_MC_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct clk;
|
|
struct device;
|
|
struct page;
|
|
|
|
struct tegra_smmu_enable {
|
|
unsigned int reg;
|
|
unsigned int bit;
|
|
};
|
|
|
|
struct tegra_mc_timing {
|
|
unsigned long rate;
|
|
|
|
u32 *emem_data;
|
|
};
|
|
|
|
/* latency allowance */
|
|
struct tegra_mc_la {
|
|
unsigned int reg;
|
|
unsigned int shift;
|
|
unsigned int mask;
|
|
unsigned int def;
|
|
};
|
|
|
|
struct tegra_mc_client {
|
|
unsigned int id;
|
|
const char *name;
|
|
unsigned int swgroup;
|
|
|
|
unsigned int fifo_size;
|
|
|
|
struct tegra_smmu_enable smmu;
|
|
struct tegra_mc_la la;
|
|
};
|
|
|
|
struct tegra_smmu_swgroup {
|
|
const char *name;
|
|
unsigned int swgroup;
|
|
unsigned int reg;
|
|
};
|
|
|
|
struct tegra_smmu_group_soc {
|
|
const char *name;
|
|
const unsigned int *swgroups;
|
|
unsigned int num_swgroups;
|
|
};
|
|
|
|
struct tegra_smmu_soc {
|
|
const struct tegra_mc_client *clients;
|
|
unsigned int num_clients;
|
|
|
|
const struct tegra_smmu_swgroup *swgroups;
|
|
unsigned int num_swgroups;
|
|
|
|
const struct tegra_smmu_group_soc *groups;
|
|
unsigned int num_groups;
|
|
|
|
bool supports_round_robin_arbitration;
|
|
bool supports_request_limit;
|
|
|
|
unsigned int num_tlb_lines;
|
|
unsigned int num_asids;
|
|
};
|
|
|
|
struct tegra_mc;
|
|
struct tegra_smmu;
|
|
|
|
#ifdef CONFIG_TEGRA_IOMMU_SMMU
|
|
struct tegra_smmu *tegra_smmu_probe(struct device *dev,
|
|
const struct tegra_smmu_soc *soc,
|
|
struct tegra_mc *mc);
|
|
void tegra_smmu_remove(struct tegra_smmu *smmu);
|
|
#else
|
|
static inline struct tegra_smmu *
|
|
tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
|
|
struct tegra_mc *mc)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void tegra_smmu_remove(struct tegra_smmu *smmu)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
struct tegra_mc_soc {
|
|
const struct tegra_mc_client *clients;
|
|
unsigned int num_clients;
|
|
|
|
const unsigned long *emem_regs;
|
|
unsigned int num_emem_regs;
|
|
|
|
unsigned int num_address_bits;
|
|
unsigned int atom_size;
|
|
|
|
u8 client_id_mask;
|
|
|
|
const struct tegra_smmu_soc *smmu;
|
|
};
|
|
|
|
struct tegra_mc {
|
|
struct device *dev;
|
|
struct tegra_smmu *smmu;
|
|
void __iomem *regs;
|
|
struct clk *clk;
|
|
int irq;
|
|
|
|
const struct tegra_mc_soc *soc;
|
|
unsigned long tick;
|
|
|
|
struct tegra_mc_timing *timings;
|
|
unsigned int num_timings;
|
|
};
|
|
|
|
void tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
|
|
unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc);
|
|
|
|
#endif /* __SOC_TEGRA_MC_H__ */
|