/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
- * Copyright (C) 2019-2020 Linaro Ltd.
+ * Copyright (C) 2019-2021 Linaro Ltd.
*/
#ifndef _IPA_DATA_H_
#define _IPA_DATA_H_
* Boot-time configuration data is used to define the configuration of the
* IPA and GSI resources to use for a given platform. This data is supplied
* via the Device Tree match table, associated with a particular compatible
- * string. The data defines information about resources, endpoints, and
- * channels.
+ * string. The data defines information about how resources, endpoints and
+ * channels, memory, clocking and so on are allocated and used for the
+ * platform.
*
* Resources are data structures used internally by the IPA hardware. The
* configuration data defines the number (or limits of the number) of various
*/
/* The maximum value returned by ipa_resource_group_{src,dst}_count() */
-#define IPA_RESOURCE_GROUP_SRC_MAX 5
-#define IPA_RESOURCE_GROUP_DST_MAX 5
+#define IPA_RESOURCE_GROUP_MAX 5
+
+/** enum ipa_qsb_master_id - array index for IPA QSB configuration data */
+enum ipa_qsb_master_id {
+ IPA_QSB_MASTER_DDR,
+ IPA_QSB_MASTER_PCIE,
+};
+
+/**
+ * struct ipa_qsb_data - Qualcomm System Bus configuration data
+ * @max_writes: Maximum outstanding write requests for this master
+ * @max_reads: Maximum outstanding read requests for this master
+ * @max_reads_beats: Max outstanding read bytes in 8-byte "beats" (if non-zero)
+ */
+struct ipa_qsb_data {
+ u8 max_writes;
+ u8 max_reads;
+ u8 max_reads_beats; /* Not present for IPA v3.5.1 */
+};
/**
* struct gsi_channel_data - GSI channel configuration data
*
* A GSI channel is a unidirectional means of transferring data to or
* from (and through) the IPA. A GSI channel has a ring buffer made
- * up of "transfer elements" (TREs) that specify individual data transfers
- * or IPA immediate commands. TREs are filled by the AP, and control
- * is passed to IPA hardware by writing the last written element
- * into a doorbell register.
+ * up of "transfer ring elements" (TREs) that specify individual data
+ * transfers or IPA immediate commands. TREs are filled by the AP,
+ * and control is passed to IPA hardware by writing the last written
+ * element into a doorbell register.
*
* When data transfer commands have completed the GSI generates an
* event (a structure of data) and optionally signals the AP with
/**
* struct ipa_endpoint_tx_data - configuration data for TX endpoints
+ * @seq_type: primary packet processing sequencer type
+ * @seq_rep_type: sequencer type for replication processing
* @status_endpoint: endpoint to which status elements are sent
*
* The @status_endpoint is only valid if the endpoint's @status_enable
* flag is set.
*/
struct ipa_endpoint_tx_data {
+ enum ipa_seq_type seq_type;
+ enum ipa_seq_rep_type seq_rep_type;
enum ipa_endpoint_name status_endpoint;
};
/**
* struct ipa_endpoint_data - IPA endpoint configuration data
* @filter_support: whether endpoint supports filtering
- * @seq_type: hardware sequencer type used for endpoint
* @config: hardware configuration (see above)
*
* Not all endpoints support the IPA filtering capability. A filter table
* in the system, and indicate whether they support filtering.
*
* The remaining endpoint configuration data applies only to AP endpoints.
- * The IPA hardware is implemented by sequencers, and the AP must program
- * the type(s) of these sequencers at initialization time. The remaining
- * endpoint configuration data is defined above.
*/
struct ipa_endpoint_data {
bool filter_support;
- /* The next two are specified only for AP endpoints */
- enum ipa_seq_type seq_type;
+ /* Everything else is specified only for AP endpoints */
struct ipa_endpoint_config_data config;
};
/**
* struct ipa_gsi_endpoint_data - GSI channel/IPA endpoint data
- * ee: GSI execution environment ID
- * channel_id: GSI channel ID
- * endpoint_id: IPA endpoint ID
- * toward_ipa: direction of data transfer
- * gsi: GSI channel configuration data (see above)
- * ipa: IPA endpoint configuration data (see above)
+ * @ee_id: GSI execution environment ID
+ * @channel_id: GSI channel ID
+ * @endpoint_id: IPA endpoint ID
+ * @toward_ipa: direction of data transfer
+ * @channel: GSI channel configuration data (see above)
+ * @endpoint: IPA endpoint configuration data (see above)
*/
struct ipa_gsi_endpoint_data {
u8 ee_id; /* enum gsi_ee_id */
struct ipa_endpoint_data endpoint;
};
-/** enum ipa_resource_type_src - source resource types */
-enum ipa_resource_type_src {
- IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS,
- IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS,
- IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF,
- IPA_RESOURCE_TYPE_SRC_HPS_DMARS,
- IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES,
-};
-
-/** enum ipa_resource_type_dst - destination resource types */
-enum ipa_resource_type_dst {
- IPA_RESOURCE_TYPE_DST_DATA_SECTORS,
- IPA_RESOURCE_TYPE_DST_DPS_DMARS,
-};
-
/**
* struct ipa_resource_limits - minimum and maximum resource counts
* @min: minimum number of resources of a given type
/**
* struct ipa_resource_src - source endpoint group resource usage
- * @type: source group resource type
- * @limits: array of limits to use for each resource group
+ * @limits: array of source resource limits, indexed by group
*/
struct ipa_resource_src {
- enum ipa_resource_type_src type;
- struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_SRC_MAX];
+ struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_MAX];
};
/**
* struct ipa_resource_dst - destination endpoint group resource usage
- * @type: destination group resource type
- * @limits: array of limits to use for each resource group
+ * @limits: array of destination resource limits, indexed by group
*/
struct ipa_resource_dst {
- enum ipa_resource_type_dst type;
- struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_DST_MAX];
+ struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_MAX];
};
/**
* @imem_addr: physical address of IPA region within IMEM
* @imem_size: size in bytes of IPA IMEM region
* @smem_id: item identifier for IPA region within SMEM memory
- * @imem_size: size in bytes of the IPA SMEM region
+ * @smem_size: size in bytes of the IPA SMEM region
*/
struct ipa_mem_data {
u32 local_count;
/**
* struct ipa_data - combined IPA/GSI configuration data
* @version: IPA hardware version
- * @endpoint_count: number of entries in endpoint_data array
+ * @qsb_count: number of entries in the qsb_data array
+ * @qsb_data: Qualcomm System Bus configuration data
+ * @endpoint_count: number of entries in the endpoint_data array
* @endpoint_data: IPA endpoint/GSI channel data
* @resource_data: IPA resource configuration data
- * @mem_count: number of entries in mem_data array
- * @mem_data: IPA-local shared memory region data
+ * @mem_data: IPA memory region data
+ * @clock_data: IPA clock and interconnect data
*/
struct ipa_data {
enum ipa_version version;
- u32 endpoint_count; /* # entries in endpoint_data[] */
+ u32 qsb_count; /* number of entries in qsb_data[] */
+ const struct ipa_qsb_data *qsb_data;
+ u32 endpoint_count; /* number of entries in endpoint_data[] */
const struct ipa_gsi_endpoint_data *endpoint_data;
const struct ipa_resource_data *resource_data;
const struct ipa_mem_data *mem_data;
projects / linux-2.6-microblaze.git / blobdiff