diff options
| author | Sibi Sankar <sibis@codeaurora.org> | 2020-03-12 15:08:40 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-03-15 08:38:42 +0300 |
| commit | fbe639b44a82755d639df1c5d147c93f02ac5a0f (patch) | |
| tree | 9b8c662be2e69ddad2591c87b63fe9a73c11531a /include/linux/soc/qcom/pdr.h | |
| parent | 04fc94be4a81d0fa9eaf0917a308c02c2b031e82 (diff) | |
| download | linux-fbe639b44a82755d639df1c5d147c93f02ac5a0f.tar.xz | |
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>
Diffstat (limited to 'include/linux/soc/qcom/pdr.h')
| -rw-r--r-- | include/linux/soc/qcom/pdr.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/soc/qcom/pdr.h b/include/linux/soc/qcom/pdr.h new file mode 100644 index 000000000000..83a8ea612e69 --- /dev/null +++ b/include/linux/soc/qcom/pdr.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __QCOM_PDR_HELPER__ +#define __QCOM_PDR_HELPER__ + +#include <linux/soc/qcom/qmi.h> + +#define SERVREG_NAME_LENGTH 64 + +struct pdr_service; +struct pdr_handle; + +enum servreg_service_state { + SERVREG_LOCATOR_ERR = 0x1, + SERVREG_SERVICE_STATE_DOWN = 0x0FFFFFFF, + SERVREG_SERVICE_STATE_UP = 0x1FFFFFFF, + SERVREG_SERVICE_STATE_EARLY_DOWN = 0x2FFFFFFF, + SERVREG_SERVICE_STATE_UNINIT = 0x7FFFFFFF, +}; + +struct pdr_handle *pdr_handle_alloc(void (*status)(int state, + char *service_path, + void *priv), void *priv); +struct pdr_service *pdr_add_lookup(struct pdr_handle *pdr, + const char *service_name, + const char *service_path); +int pdr_restart_pd(struct pdr_handle *pdr, struct pdr_service *pds); +void pdr_handle_release(struct pdr_handle *pdr); + +#endif |