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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>
29 lines
814 B
C
29 lines
814 B
C
/* 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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