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soc: qcom: Introduce Protection Domain Restart helpers
Qualcomm SoCs (starting with MSM8998) allow for multiple protection domains to run on the same Q6 sub-system. This allows for services like ATH10K WLAN FW to have their own separate address space and crash/recover without disrupting the modem and other PDs running on the same sub-system. The PDR helpers introduces an abstraction that allows for tracking/controlling the life cycle of protection domains running on various Q6 sub-systems. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200312120842.21991-2-sibis@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Sibi Sankar
committed by
Bjorn Andersson
Bjorn Andersson
parent
04fc94be4a
commit
fbe639b44a
@@ -76,6 +76,10 @@ config QCOM_OCMEM
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requirements. This is typically used by the GPU, camera/video, and
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audio components on some Snapdragon SoCs.
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config QCOM_PDR_HELPERS
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tristate
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select QCOM_QMI_HELPERS
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config QCOM_PM
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bool "Qualcomm Power Management"
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depends on ARCH_QCOM && !ARM64
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@@ -7,6 +7,7 @@ obj-$(CONFIG_QCOM_GLINK_SSR) += glink_ssr.o
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obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o
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obj-$(CONFIG_QCOM_MDT_LOADER) += mdt_loader.o
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obj-$(CONFIG_QCOM_OCMEM) += ocmem.o
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obj-$(CONFIG_QCOM_PDR_HELPERS) += pdr_interface.o
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obj-$(CONFIG_QCOM_PM) += spm.o
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obj-$(CONFIG_QCOM_QMI_HELPERS) += qmi_helpers.o
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qmi_helpers-y += qmi_encdec.o qmi_interface.o
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757
drivers/soc/qcom/pdr_interface.c
Normal file
757
drivers/soc/qcom/pdr_interface.c
Normal file
File diff suppressed because it is too large
Load Diff
379
drivers/soc/qcom/pdr_internal.h
Normal file
379
drivers/soc/qcom/pdr_internal.h
Normal file
@@ -0,0 +1,379 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __QCOM_PDR_HELPER_INTERNAL__
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#define __QCOM_PDR_HELPER_INTERNAL__
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#include <linux/soc/qcom/pdr.h>
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#define SERVREG_LOCATOR_SERVICE 0x40
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#define SERVREG_NOTIFIER_SERVICE 0x42
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#define SERVREG_REGISTER_LISTENER_REQ 0x20
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#define SERVREG_GET_DOMAIN_LIST_REQ 0x21
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#define SERVREG_STATE_UPDATED_IND_ID 0x22
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#define SERVREG_SET_ACK_REQ 0x23
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#define SERVREG_RESTART_PD_REQ 0x24
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#define SERVREG_DOMAIN_LIST_LENGTH 32
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#define SERVREG_RESTART_PD_REQ_MAX_LEN 67
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#define SERVREG_REGISTER_LISTENER_REQ_LEN 71
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#define SERVREG_SET_ACK_REQ_LEN 72
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#define SERVREG_GET_DOMAIN_LIST_REQ_MAX_LEN 74
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#define SERVREG_STATE_UPDATED_IND_MAX_LEN 79
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#define SERVREG_GET_DOMAIN_LIST_RESP_MAX_LEN 2389
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struct servreg_location_entry {
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char name[SERVREG_NAME_LENGTH + 1];
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u8 service_data_valid;
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u32 service_data;
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u32 instance;
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};
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struct qmi_elem_info servreg_location_entry_ei[] = {
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0,
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.offset = offsetof(struct servreg_location_entry,
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name),
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},
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{
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.data_type = QMI_UNSIGNED_4_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u32),
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.array_type = NO_ARRAY,
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.tlv_type = 0,
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.offset = offsetof(struct servreg_location_entry,
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instance),
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},
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{
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.data_type = QMI_UNSIGNED_1_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0,
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.offset = offsetof(struct servreg_location_entry,
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service_data_valid),
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},
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{
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.data_type = QMI_UNSIGNED_4_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u32),
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.array_type = NO_ARRAY,
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.tlv_type = 0,
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.offset = offsetof(struct servreg_location_entry,
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service_data),
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},
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{}
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};
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struct servreg_get_domain_list_req {
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char service_name[SERVREG_NAME_LENGTH + 1];
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u8 domain_offset_valid;
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u32 domain_offset;
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};
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struct qmi_elem_info servreg_get_domain_list_req_ei[] = {
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0x01,
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.offset = offsetof(struct servreg_get_domain_list_req,
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service_name),
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},
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{
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.data_type = QMI_OPT_FLAG,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_get_domain_list_req,
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domain_offset_valid),
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},
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{
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.data_type = QMI_UNSIGNED_4_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u32),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_get_domain_list_req,
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domain_offset),
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},
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{}
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};
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struct servreg_get_domain_list_resp {
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struct qmi_response_type_v01 resp;
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u8 total_domains_valid;
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u16 total_domains;
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u8 db_rev_count_valid;
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u16 db_rev_count;
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u8 domain_list_valid;
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u32 domain_list_len;
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struct servreg_location_entry domain_list[SERVREG_DOMAIN_LIST_LENGTH];
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};
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struct qmi_elem_info servreg_get_domain_list_resp_ei[] = {
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{
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.data_type = QMI_STRUCT,
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.elem_len = 1,
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.elem_size = sizeof(struct qmi_response_type_v01),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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resp),
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.ei_array = qmi_response_type_v01_ei,
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},
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{
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.data_type = QMI_OPT_FLAG,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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total_domains_valid),
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},
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{
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.data_type = QMI_UNSIGNED_2_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u16),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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total_domains),
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},
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{
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.data_type = QMI_OPT_FLAG,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x11,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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db_rev_count_valid),
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},
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{
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.data_type = QMI_UNSIGNED_2_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u16),
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.array_type = NO_ARRAY,
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.tlv_type = 0x11,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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db_rev_count),
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},
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{
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.data_type = QMI_OPT_FLAG,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x12,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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domain_list_valid),
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},
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{
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.data_type = QMI_DATA_LEN,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x12,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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domain_list_len),
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},
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{
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.data_type = QMI_STRUCT,
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.elem_len = SERVREG_DOMAIN_LIST_LENGTH,
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.elem_size = sizeof(struct servreg_location_entry),
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.array_type = NO_ARRAY,
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.tlv_type = 0x12,
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.offset = offsetof(struct servreg_get_domain_list_resp,
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domain_list),
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.ei_array = servreg_location_entry_ei,
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},
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{}
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};
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struct servreg_register_listener_req {
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u8 enable;
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char service_path[SERVREG_NAME_LENGTH + 1];
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};
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struct qmi_elem_info servreg_register_listener_req_ei[] = {
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{
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.data_type = QMI_UNSIGNED_1_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x01,
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.offset = offsetof(struct servreg_register_listener_req,
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enable),
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},
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_register_listener_req,
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service_path),
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},
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{}
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};
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struct servreg_register_listener_resp {
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struct qmi_response_type_v01 resp;
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u8 curr_state_valid;
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enum servreg_service_state curr_state;
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};
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struct qmi_elem_info servreg_register_listener_resp_ei[] = {
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{
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.data_type = QMI_STRUCT,
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.elem_len = 1,
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.elem_size = sizeof(struct qmi_response_type_v01),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_register_listener_resp,
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resp),
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.ei_array = qmi_response_type_v01_ei,
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},
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{
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.data_type = QMI_OPT_FLAG,
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.elem_len = 1,
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.elem_size = sizeof(u8),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_register_listener_resp,
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curr_state_valid),
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},
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{
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.data_type = QMI_SIGNED_4_BYTE_ENUM,
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.elem_len = 1,
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.elem_size = sizeof(enum servreg_service_state),
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.array_type = NO_ARRAY,
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.tlv_type = 0x10,
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.offset = offsetof(struct servreg_register_listener_resp,
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curr_state),
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},
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{}
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};
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struct servreg_restart_pd_req {
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char service_path[SERVREG_NAME_LENGTH + 1];
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};
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struct qmi_elem_info servreg_restart_pd_req_ei[] = {
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0x01,
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.offset = offsetof(struct servreg_restart_pd_req,
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service_path),
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},
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{}
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};
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struct servreg_restart_pd_resp {
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struct qmi_response_type_v01 resp;
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};
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struct qmi_elem_info servreg_restart_pd_resp_ei[] = {
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{
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.data_type = QMI_STRUCT,
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.elem_len = 1,
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.elem_size = sizeof(struct qmi_response_type_v01),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_restart_pd_resp,
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resp),
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.ei_array = qmi_response_type_v01_ei,
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},
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{}
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};
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struct servreg_state_updated_ind {
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enum servreg_service_state curr_state;
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char service_path[SERVREG_NAME_LENGTH + 1];
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u16 transaction_id;
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};
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struct qmi_elem_info servreg_state_updated_ind_ei[] = {
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{
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.data_type = QMI_SIGNED_4_BYTE_ENUM,
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.elem_len = 1,
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.elem_size = sizeof(u32),
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.array_type = NO_ARRAY,
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.tlv_type = 0x01,
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.offset = offsetof(struct servreg_state_updated_ind,
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curr_state),
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},
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_state_updated_ind,
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service_path),
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},
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{
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.data_type = QMI_UNSIGNED_2_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u16),
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.array_type = NO_ARRAY,
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.tlv_type = 0x03,
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.offset = offsetof(struct servreg_state_updated_ind,
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transaction_id),
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},
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{}
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};
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struct servreg_set_ack_req {
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char service_path[SERVREG_NAME_LENGTH + 1];
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u16 transaction_id;
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};
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struct qmi_elem_info servreg_set_ack_req_ei[] = {
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{
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.data_type = QMI_STRING,
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.elem_len = SERVREG_NAME_LENGTH + 1,
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.elem_size = sizeof(char),
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.array_type = NO_ARRAY,
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.tlv_type = 0x01,
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.offset = offsetof(struct servreg_set_ack_req,
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service_path),
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},
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{
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.data_type = QMI_UNSIGNED_2_BYTE,
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.elem_len = 1,
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.elem_size = sizeof(u16),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_set_ack_req,
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transaction_id),
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},
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{}
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};
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struct servreg_set_ack_resp {
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struct qmi_response_type_v01 resp;
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};
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struct qmi_elem_info servreg_set_ack_resp_ei[] = {
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{
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.data_type = QMI_STRUCT,
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.elem_len = 1,
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.elem_size = sizeof(struct qmi_response_type_v01),
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.array_type = NO_ARRAY,
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.tlv_type = 0x02,
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.offset = offsetof(struct servreg_set_ack_resp,
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resp),
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.ei_array = qmi_response_type_v01_ei,
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},
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{}
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};
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#endif
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29
include/linux/soc/qcom/pdr.h
Normal file
29
include/linux/soc/qcom/pdr.h
Normal file
@@ -0,0 +1,29 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __QCOM_PDR_HELPER__
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#define __QCOM_PDR_HELPER__
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#include <linux/soc/qcom/qmi.h>
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#define SERVREG_NAME_LENGTH 64
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struct pdr_service;
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struct pdr_handle;
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enum servreg_service_state {
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SERVREG_LOCATOR_ERR = 0x1,
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SERVREG_SERVICE_STATE_DOWN = 0x0FFFFFFF,
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SERVREG_SERVICE_STATE_UP = 0x1FFFFFFF,
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SERVREG_SERVICE_STATE_EARLY_DOWN = 0x2FFFFFFF,
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SERVREG_SERVICE_STATE_UNINIT = 0x7FFFFFFF,
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};
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struct pdr_handle *pdr_handle_alloc(void (*status)(int state,
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char *service_path,
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void *priv), void *priv);
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struct pdr_service *pdr_add_lookup(struct pdr_handle *pdr,
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const char *service_name,
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const char *service_path);
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int pdr_restart_pd(struct pdr_handle *pdr, struct pdr_service *pds);
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void pdr_handle_release(struct pdr_handle *pdr);
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#endif
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@@ -88,6 +88,7 @@ struct qmi_elem_info {
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#define QMI_ERR_CLIENT_IDS_EXHAUSTED_V01 5
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#define QMI_ERR_INVALID_ID_V01 41
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#define QMI_ERR_ENCODING_V01 58
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#define QMI_ERR_DISABLED_V01 69
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#define QMI_ERR_INCOMPATIBLE_STATE_V01 90
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#define QMI_ERR_NOT_SUPPORTED_V01 94
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