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firmware: ti_sci: Add support for firewall management

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TI-SCI message protocol provides support for controlling the firewall
configurations available in SoC.

Introduce support for the set of TI-SCI message protocol APIs that
provide us with this capability of controlling firewalls.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
This commit is contained in:
Andrew F. Davis
2019-04-12 12:54:43 -04:00
committed by Tom Rini
parent 407a219261
commit 32ca8ffd5b
3 changed files with 362 additions and 0 deletions
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64
include/linux/soc/ti/ti_sci_protocol.h
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@@ -510,6 +510,68 @@ struct ti_sci_rm_udmap_ops {
const struct ti_sci_msg_rm_udmap_flow_cfg *params);
};
/**
* struct ti_sci_msg_fwl_region_cfg - Request and Response for firewalls settings
*
* @fwl_id: Firewall ID in question
* @region: Region or channel number to set config info
* This field is unused in case of a simple firewall and must be initialized
* to zero. In case of a region based firewall, this field indicates the
* region in question. (index starting from 0) In case of a channel based
* firewall, this field indicates the channel in question (index starting
* from 0)
* @n_permission_regs: Number of permission registers to set
* @control: Contents of the firewall CONTROL register to set
* @permissions: Contents of the firewall PERMISSION register to set
* @start_address: Contents of the firewall START_ADDRESS register to set
* @end_address: Contents of the firewall END_ADDRESS register to set
*/
struct ti_sci_msg_fwl_region {
u16 fwl_id;
u16 region;
u32 n_permission_regs;
u32 control;
u32 permissions[3];
u64 start_address;
u64 end_address;
} __packed;
/**
* \brief Request and Response for firewall owner change
*
* @fwl_id: Firewall ID in question
* @region: Region or channel number to set config info
* This field is unused in case of a simple firewall and must be initialized
* to zero. In case of a region based firewall, this field indicates the
* region in question. (index starting from 0) In case of a channel based
* firewall, this field indicates the channel in question (index starting
* from 0)
* @n_permission_regs: Number of permission registers <= 3
* @control: Control register value for this region
* @owner_index: New owner index to change to. Owner indexes are setup in DMSC firmware boot configuration data
* @owner_privid: New owner priv-id, used to lookup owner_index is not known, must be set to zero otherwise
* @owner_permission_bits: New owner permission bits
*/
struct ti_sci_msg_fwl_owner {
u16 fwl_id;
u16 region;
u8 owner_index;
u8 owner_privid;
u16 owner_permission_bits;
} __packed;
/**
* struct ti_sci_fwl_ops - Firewall specific operations
* @set_fwl_region: Request for configuring the firewall permissions.
* @get_fwl_region: Request for retrieving the firewall permissions.
* @change_fwl_owner: Request for a change of firewall owner.
*/
struct ti_sci_fwl_ops {
int (*set_fwl_region)(const struct ti_sci_handle *handle, const struct ti_sci_msg_fwl_region *region);
int (*get_fwl_region)(const struct ti_sci_handle *handle, struct ti_sci_msg_fwl_region *region);
int (*change_fwl_owner)(const struct ti_sci_handle *handle, struct ti_sci_msg_fwl_owner *owner);
};
/**
* struct ti_sci_ops - Function support for TI SCI
* @board_ops: Miscellaneous operations
@@ -518,6 +580,7 @@ struct ti_sci_rm_udmap_ops {
* @core_ops: Core specific operations
* @proc_ops: Processor specific operations
* @ring_ops: Ring Accelerator Management operations
* @fw_ops: Firewall specific operations
*/
struct ti_sci_ops {
struct ti_sci_board_ops board_ops;
@@ -529,6 +592,7 @@ struct ti_sci_ops {
struct ti_sci_rm_ringacc_ops rm_ring_ops;
struct ti_sci_rm_psil_ops rm_psil_ops;
struct ti_sci_rm_udmap_ops rm_udmap_ops;
struct ti_sci_fwl_ops fwl_ops;
};
/**