Files
android_kernel_samsung_sm86…/driver/vidc/inc/resources.h
Govindaraj Rajagopal ab9b1a112b video: driver: add power domain and opp table support for video
Added changes to support generic power domain and opp table.
This is an alternative for downstream regulator framework.

power domain can be enabled using below dtsi entries.

power-domains =
    <&videocc MVS0C_GDSC>,
	<&videocc MVS0_GDSC>,
	<&rpmhpd SM8450_MXC>,
	<&rpmhpd SM8450_MMCX>
power-domain-names =
    "iris-ctl", "vcodec", "mx", "mmcx";

Power domain handles willbe parsed at driver side using below api's.
   - dev_pm_domain_attach_by_name()
   - devm_pm_opp_attach_genpd()

devm_pm_opp_attach_genpd() provides consumer virtual device handles
and i.e linked to core->dev using device_link_add().

MXC, MMCX rails wilbe powered up by scaling desired rate using
dev_pm_opp_set_rate().

Change-Id: I3d73434cb772078f031aec7cadc2d42ab930edd0
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>
2023-01-18 16:44:23 +05:30

267 lines
8.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2020-2022, The Linux Foundation. All rights reserved.
* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef _MSM_VIDC_RESOURCES_H_
#define _MSM_VIDC_RESOURCES_H_
#include <linux/clk/qcom.h>
struct icc_path;
struct regulator;
struct clk;
struct reset_control;
struct llcc_slice_desc;
struct iommu_domain;
struct device;
struct msm_vidc_core;
/*
* These are helper macros to iterate over various lists within
* msm_vidc_core->resource. The intention is to cut down on a lot
* of boiler-plate code
*/
/* Read as "for each 'thing' in a set of 'thingies'" */
#define venus_hfi_for_each_thing(__device, __thing, __thingy) \
venus_hfi_for_each_thing_continue(__device, __thing, __thingy, 0)
#define venus_hfi_for_each_thing_reverse(__device, __thing, __thingy) \
venus_hfi_for_each_thing_reverse_continue(__device, __thing, __thingy, \
(__device)->resource->__thingy##_set.count - 1)
/* TODO: the __from parameter technically not required since we can figure it
* out with some pointer magic (i.e. __thing - __thing##_tbl[0]). If this macro
* sees extensive use, probably worth cleaning it up but for now omitting it
* since it introduces unnecessary complexity.
*/
#define venus_hfi_for_each_thing_continue(__device, __thing, __thingy, __from) \
for (__thing = &(__device)->resource->\
__thingy##_set.__thingy##_tbl[__from]; \
__thing < &(__device)->resource->__thingy##_set.__thingy##_tbl[0] + \
((__device)->resource->__thingy##_set.count - __from); \
++__thing)
#define venus_hfi_for_each_thing_reverse_continue(__device, __thing, __thingy, \
__from) \
for (__thing = &(__device)->resource->\
__thingy##_set.__thingy##_tbl[__from]; \
__thing >= &(__device)->resource->__thingy##_set.__thingy##_tbl[0]; \
--__thing)
/* Bus set helpers */
#define venus_hfi_for_each_bus(__device, __binfo) \
venus_hfi_for_each_thing(__device, __binfo, bus)
#define venus_hfi_for_each_bus_reverse(__device, __binfo) \
venus_hfi_for_each_thing_reverse(__device, __binfo, bus)
/* Regular set helpers */
#define venus_hfi_for_each_regulator(__device, __rinfo) \
venus_hfi_for_each_thing(__device, __rinfo, regulator)
#define venus_hfi_for_each_regulator_reverse(__device, __rinfo) \
venus_hfi_for_each_thing_reverse(__device, __rinfo, regulator)
#define venus_hfi_for_each_regulator_reverse_continue(__device, __rinfo, \
__from) \
venus_hfi_for_each_thing_reverse_continue(__device, __rinfo, \
regulator, __from)
/* Power domain set helpers */
#define venus_hfi_for_each_power_domain(__device, __pdinfo) \
venus_hfi_for_each_thing(__device, __pdinfo, power_domain)
/* Clock set helpers */
#define venus_hfi_for_each_clock(__device, __cinfo) \
venus_hfi_for_each_thing(__device, __cinfo, clock)
#define venus_hfi_for_each_clock_reverse(__device, __cinfo) \
venus_hfi_for_each_thing_reverse(__device, __cinfo, clock)
/* Reset clock set helpers */
#define venus_hfi_for_each_reset_clock(__device, __rcinfo) \
venus_hfi_for_each_thing(__device, __rcinfo, reset)
#define venus_hfi_for_each_reset_clock_reverse(__device, __rcinfo) \
venus_hfi_for_each_thing_reverse(__device, __rcinfo, reset)
#define venus_hfi_for_each_reset_clock_reverse_continue(__device, __rinfo, \
__from) \
venus_hfi_for_each_thing_reverse_continue(__device, __rinfo, \
reset, __from)
/* Subcache set helpers */
#define venus_hfi_for_each_subcache(__device, __sinfo) \
venus_hfi_for_each_thing(__device, __sinfo, subcache)
#define venus_hfi_for_each_subcache_reverse(__device, __sinfo) \
venus_hfi_for_each_thing_reverse(__device, __sinfo, subcache)
/* Contextbank set helpers */
#define venus_hfi_for_each_context_bank(__device, __sinfo) \
venus_hfi_for_each_thing(__device, __sinfo, context_bank)
#define venus_hfi_for_each_context_bank_reverse(__device, __sinfo) \
venus_hfi_for_each_thing_reverse(__device, __sinfo, context_bank)
struct bus_info {
struct icc_path *icc;
const char *name;
u32 min_kbps;
u32 max_kbps;
};
struct bus_set {
struct bus_info *bus_tbl;
u32 count;
};
struct regulator_info {
struct regulator *regulator;
const char *name;
bool hw_power_collapse;
};
struct regulator_set {
struct regulator_info *regulator_tbl;
u32 count;
};
struct power_domain_info {
struct device *genpd_dev;
const char *name;
};
struct power_domain_set {
struct power_domain_info *power_domain_tbl;
u32 count;
};
struct clock_residency {
struct list_head list;
u64 rate;
u64 start_time_us;
u64 total_time_us;
};
struct clock_info {
struct clk *clk;
const char *name;
u32 clk_id;
bool has_scaling;
u64 prev;
#ifdef CONFIG_MSM_MMRM
struct mmrm_client *mmrm_client;
#endif
struct list_head residency_list; /* list of struct clock_residency */
};
struct clock_set {
struct clock_info *clock_tbl;
u32 count;
};
struct reset_info {
struct reset_control *rst;
const char *name;
bool exclusive_release;
};
struct reset_set {
struct reset_info *reset_tbl;
u32 count;
};
struct subcache_info {
struct llcc_slice_desc *subcache;
const char *name;
u32 llcc_id;
bool isactive;
};
struct subcache_set {
struct subcache_info *subcache_tbl;
u32 count;
bool set_to_fw;
};
struct addr_range {
u32 start;
u32 size;
};
struct context_bank_info {
const char *name;
struct addr_range addr_range;
bool secure;
bool dma_coherant;
struct device *dev;
struct iommu_domain *domain;
u32 region;
u64 dma_mask;
};
struct context_bank_set {
struct context_bank_info *context_bank_tbl;
u32 count;
};
struct frequency_table {
unsigned long freq;
};
struct freq_set {
struct frequency_table *freq_tbl;
u32 count;
};
struct msm_vidc_resource {
void *core;
u8 __iomem *register_base_addr;
u32 irq;
struct bus_set bus_set;
struct regulator_set regulator_set;
struct power_domain_set power_domain_set;
struct clock_set clock_set;
struct reset_set reset_set;
struct subcache_set subcache_set;
struct context_bank_set context_bank_set;
struct freq_set freq_set;
int fw_cookie;
};
#define call_res_op(c, op, ...) \
(((c) && (c)->res_ops && (c)->res_ops->op) ? \
((c)->res_ops->op(__VA_ARGS__)) : 0)
struct msm_vidc_resources_ops {
int (*init)(struct msm_vidc_core *core);
int (*reset_bridge)(struct msm_vidc_core *core);
int (*reset_control_acquire)(struct msm_vidc_core *core,
const char *name);
int (*reset_control_release)(struct msm_vidc_core *core,
const char *name);
int (*reset_control_assert)(struct msm_vidc_core *core,
const char *name);
int (*reset_control_deassert)(struct msm_vidc_core *core,
const char *name);
int (*gdsc_init)(struct msm_vidc_core *core);
int (*gdsc_on)(struct msm_vidc_core *core, const char *name);
int (*gdsc_off)(struct msm_vidc_core *core, const char *name);
int (*gdsc_hw_ctrl)(struct msm_vidc_core *core);
int (*gdsc_sw_ctrl)(struct msm_vidc_core *core);
int (*llcc)(struct msm_vidc_core *core, bool enable);
int (*set_bw)(struct msm_vidc_core *core, unsigned long bw_ddr,
unsigned long bw_llcc);
int (*set_clks)(struct msm_vidc_core *core, u64 rate);
int (*clk_disable)(struct msm_vidc_core *core, const char *name);
int (*clk_enable)(struct msm_vidc_core *core, const char *name);
int (*clk_set_flag)(struct msm_vidc_core *core,
const char *name, enum branch_mem_flags flag);
int (*clk_print_residency_stats)(struct msm_vidc_core *core);
int (*clk_reset_residency_stats)(struct msm_vidc_core *core);
};
const struct msm_vidc_resources_ops *get_resources_ops(void);
#endif