/* * 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 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_soc { const struct tegra_mc_client *clients; unsigned int num_clients; const struct tegra_smmu_swgroup *swgroups; unsigned int num_swgroups; 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__ */
path: root/include/trace/events/mmc.h
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /include/trace/events/mmc.h
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'include/trace/events/mmc.h')