xilinx: zynqmp: Add support for Error Management
Adding the EM specific smc handler for the EM-related requests. Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com> Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com> Change-Id: I98122d49604a01a2f6bd1e509a5896ee68069dd0
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@ -65,6 +65,10 @@ unsigned int pm_get_shutdown_scope(void)
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PM_PACK_PAYLOAD5(pl, arg0, arg1, arg2, arg3, arg4); \
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}
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#define EM_PACK_PAYLOAD1(pl, arg0) { \
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pl[0] = (uint16_t)(0xE) << 16 | (uint16_t)arg0; \
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}
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/**
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* pm_self_suspend() - PM call for processor to suspend itself
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* @nid Node id of the processor or subsystem
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@ -1617,3 +1621,30 @@ enum pm_ret_status pm_efuse_access(uint32_t address_high,
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return pm_ipi_send_sync(primary_proc, payload, value, 1);
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}
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enum pm_ret_status em_set_action(unsigned int *value)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/* Send request to the PMU */
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EM_PACK_PAYLOAD1(payload, EM_SET_ACTION);
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return pm_ipi_send_sync(primary_proc, payload, value, 1);
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}
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enum pm_ret_status em_remove_action(unsigned int *value)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/* Send request to the PMU */
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EM_PACK_PAYLOAD1(payload, EM_REMOVE_ACTION);
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return pm_ipi_send_sync(primary_proc, payload, value, 1);
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}
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enum pm_ret_status em_send_errors(unsigned int *value)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/* Send request to the PMU */
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EM_PACK_PAYLOAD1(payload, EM_SEND_ERRORS);
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return pm_ipi_send_sync(primary_proc, payload, value, 1);
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}
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@ -198,5 +198,8 @@ enum pm_ret_status pm_pll_set_mode(enum pm_node_id nid, enum pm_pll_mode mode);
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enum pm_ret_status pm_pll_get_mode(enum pm_node_id nid, enum pm_pll_mode *mode);
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enum pm_ret_status pm_efuse_access(uint32_t address_high,
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uint32_t address_low, uint32_t *value);
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enum pm_ret_status em_set_action(unsigned int *value);
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enum pm_ret_status em_remove_action(unsigned int *value);
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enum pm_ret_status em_send_errors(unsigned int *value);
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#endif /* PM_API_SYS_H */
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@ -33,6 +33,7 @@
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#define PM_STATE_CPU_IDLE 0x0U
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#define PM_STATE_SUSPEND_TO_RAM 0xFU
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#define EM_FUNID_NUM_MASK 0xF0000U
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/*********************************************************************
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* Enum definitions
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********************************************************************/
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@ -323,4 +324,13 @@ enum pm_clock_div_id {
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PM_CLOCK_DIV1_ID,
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};
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/**
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* EM API IDs
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*/
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enum em_api_id {
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EM_SET_ACTION = 1,
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EM_REMOVE_ACTION,
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EM_SEND_ERRORS,
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};
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#endif /* PM_DEFS_H */
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@ -628,3 +628,56 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
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SMC_RET1(handle, SMC_UNK);
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}
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}
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/**
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* em_smc_handler() - SMC handler for EM-API calls coming from EL1/EL2.
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* @smc_fid - Function Identifier
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* @x1 - x4 - Arguments
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* @cookie - Unused
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* @handler - Pointer to caller's context structure
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*
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* @return - Unused
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*
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* Determines that smc_fid is valid and supported EM SMC Function ID from the
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* list of em_api_ids, otherwise completes the request with
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* the unknown SMC Function ID
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*
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* The SMC calls for EM service are forwarded from SIP Service SMC handler
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* function with rt_svc_handle signature
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*/
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uint64_t em_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
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uint64_t x4, void *cookie, void *handle, uint64_t flags)
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{
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enum pm_ret_status ret;
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switch (smc_fid & FUNCID_NUM_MASK) {
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/* EM API Functions */
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case EM_SET_ACTION:
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{
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uint32_t value;
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ret = em_set_action(&value);
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SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
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}
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case EM_REMOVE_ACTION:
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{
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uint32_t value;
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ret = em_remove_action(&value);
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SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
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}
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case EM_SEND_ERRORS:
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{
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uint32_t value;
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ret = em_send_errors(&value);
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SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
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}
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default:
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WARN("Unimplemented EM Service Call: 0x%x\n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
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* Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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@ -14,4 +14,7 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
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uint64_t x4, void *cookie, void *handle,
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uint64_t flags);
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uint64_t em_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
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uint64_t x4, void *cookie, void *handle,
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uint64_t flags);
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#endif /* PM_SVC_MAIN_H */
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
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* Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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@ -25,6 +25,9 @@
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#define PM_FID_MASK 0xf000u
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#define PM_FID_VALUE 0u
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#define IPI_FID_VALUE 0x1000u
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#define EM_FID_MASK 0xf0000u
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#define EM_FID_VALUE 0xE0000u
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#define is_em_fid(_fid) (((_fid) & EM_FID_MASK) == EM_FID_VALUE)
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#define is_pm_fid(_fid) (((_fid) & PM_FID_MASK) == PM_FID_VALUE)
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#define is_ipi_fid(_fid) (((_fid) & PM_FID_MASK) == IPI_FID_VALUE)
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@ -61,8 +64,12 @@ uintptr_t sip_svc_smc_handler(uint32_t smc_fid,
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void *handle,
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u_register_t flags)
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{
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/* Let EM SMC handler deal with EM-related requests */
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if (is_em_fid(smc_fid)) {
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return em_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
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flags);
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} else if (is_pm_fid(smc_fid)) {
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/* Let PM SMC handler deal with PM-related requests */
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if (is_pm_fid(smc_fid)) {
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return pm_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
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flags);
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}
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