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platform/tegra: Remove legacy code regarding bwmgr

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CONFIG_TEGRA_BWMGR is a downstream solution in the kernel before
K5.15, and the implementation now is completed moved to BPMP side.

Since it is not supported anymore, remove the legacy code for
maintainability.

Bug 4955427

Change-Id: I688c44288bfb8522ddfebd8abe294b0410ca8dc1
Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3248363
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
This commit is contained in:
Johnny Liu
2024-11-13 22:09:21 +00:00
committed by Jon Hunter
parent 1acb4426db
commit f9d2fc0ff0
1 changed files with 0 additions and 125 deletions
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125
include/linux/platform/tegra/emc_bwmgr.h
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@@ -126,130 +126,6 @@ struct bwmgr_ops *bwmgr_eff_init_t21x(void);
struct bwmgr_ops *bwmgr_eff_init_t18x(void); struct bwmgr_ops *bwmgr_eff_init_t18x(void);
struct bwmgr_ops *bwmgr_eff_init_t19x(void); struct bwmgr_ops *bwmgr_eff_init_t19x(void);
#if defined(CONFIG_TEGRA_BWMGR)
/**
* tegra_bwmgr_register - register an EMC Bandwidth Manager client.
* Also see tegra_bwmgr_unregister().
* @client client id from tegra_bwmgr_client_id
*
* Returns a valid handle on successful registration, NULL on error.
*/
struct tegra_bwmgr_client *tegra_bwmgr_register(
enum tegra_bwmgr_client_id client);
/**
* tegra_bwmgr_unregister - unregister an EMC Bandwidth Manager client.
* Callers should match register/unregister calls.
* Persistence of old requests across
* register/unregister calls is undefined.
* Also see tegra_bwmgr_set_emc()
*
* @handle handle acquired during tegra_bwmgr_register
*/
void tegra_bwmgr_unregister(struct tegra_bwmgr_client *handle);
/**
* tegra_bwmgr_get_dram_num_channels - get the number of DRAM channels
*
* Returns the number of DRAM channels that are configured on the underlying
* platform.
*/
u8 tegra_bwmgr_get_dram_num_channels(void);
/**
* tegra_bwmgr_get_emc_rate - get the current EMC rate.
*
* Returns current memory clock rate in Hz.
*/
unsigned long tegra_bwmgr_get_emc_rate(void);
/**
* tegra_bwmgr_get_max_emc_rate - get the max EMC rate.
*
* Returns the max memory clock rate in Hz.
*/
unsigned long tegra_bwmgr_get_max_emc_rate(void);
/**
* tegra_bwmgr_get_core_emc_rate - get the actual emc frequency calculated
* using the dram frequency and emc_to_dram
* conversion factor.
*
* Returns the core emc rate in Hz.
*/
unsigned long tegra_bwmgr_get_core_emc_rate(void);
/**
* tegra_bwmgr_round_rate - round up to next EMC rate which can be provided
*
* @bw Input rate
*
* Returns the next higher rate from the Input rate that EMC can run at.
*/
unsigned long tegra_bwmgr_round_rate(unsigned long bw);
/**
* tegra_bwmgr_set_emc - request to bwmgr to set an EMC rate parameter.
* Actual clock rate depends on aggregation of
* requests by all clients. If needed, use
* tegra_bwmgr_get_emc_rate() to get the rate after
* a tegra_bwmgr_set_emc() call.
*
* Call tegra_bwmgr_set_emc() with same request type and
* val = 0 to clear request.
*
* @handle handle acquired during tegra_bwmgr_register
* @val value to be set in Hz, 0 to clear old request of the same type
* @req chosen type from tegra_bwmgr_request_type
*
* Returns success (0) or negative errno.
*/
int tegra_bwmgr_set_emc(struct tegra_bwmgr_client *handle, unsigned long val,
enum tegra_bwmgr_request_type req);
/**
* tegra_bwmgr_get_client_info - outputs the value previously set with
* tegra_bwmgr_set_emc or 0 if no value has been set.
*
* @handle handle acquired during tegra_bwmgr_register
* @out_val bandwidth value in Hz
* @req chosen type from tegra_bwmgr_request_type
*
* Returns success (0) or negative errno.
*/
int tegra_bwmgr_get_client_info(struct tegra_bwmgr_client *handle,
unsigned long *out_val,
enum tegra_bwmgr_request_type req);
/**
* tegra_bwmgr_notifier_register - register a notifier callback when
* emc rate changes. Must be called from non-atomic
* context. The callback must not call any bwmgr API.
* @nb linux notifier block
*
* Returns success (0) or negative errno.
*/
int tegra_bwmgr_notifier_register(struct notifier_block *nb);
/**
* tegra_bwmgr_notifier_unregister - unregister a notifier callback.
* @nb linux notifier block
*
* Returns success (0) or negative errno.
*/
int tegra_bwmgr_notifier_unregister(struct notifier_block *nb);
/*
* Initialize bwmgr.
* This api would be called by .init_machine during boot.
* bwmgr clients, don't call this api.
*/
int __init bwmgr_init(void);
void __exit bwmgr_exit(void);
#else /* CONFIG_TEGRA_BWMGR */
static inline struct tegra_bwmgr_client *tegra_bwmgr_register( static inline struct tegra_bwmgr_client *tegra_bwmgr_register(
enum tegra_bwmgr_client_id client_id) enum tegra_bwmgr_client_id client_id)
{ {
@@ -377,5 +253,4 @@ static inline int tegra_bwmgr_notifier_unregister(struct notifier_block *nb)
return 0; return 0;
} }
#endif /* CONFIG_TEGRA_BWMGR */
#endif /* __EMC_BWMGR_H */ #endif /* __EMC_BWMGR_H */