^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2018-2019, Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/arm-smccc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/bitfield.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kobject.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/firmware/intel/stratix10-svc-client.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define RSU_STATE_MASK GENMASK_ULL(31, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define RSU_VERSION_MASK GENMASK_ULL(63, 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define RSU_ERROR_LOCATION_MASK GENMASK_ULL(31, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define RSU_ERROR_DETAIL_MASK GENMASK_ULL(63, 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define RSU_DCMF0_MASK GENMASK_ULL(31, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define RSU_DCMF1_MASK GENMASK_ULL(63, 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define RSU_DCMF2_MASK GENMASK_ULL(31, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define RSU_DCMF3_MASK GENMASK_ULL(63, 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define RSU_TIMEOUT (msecs_to_jiffies(SVC_RSU_REQUEST_TIMEOUT_MS))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define INVALID_RETRY_COUNTER 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define INVALID_DCMF_VERSION 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) typedef void (*rsu_callback)(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct stratix10_svc_cb_data *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * struct stratix10_rsu_priv - rsu data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * @chan: pointer to the allocated service channel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * @client: active service client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * @completion: state for callback completion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * @lock: a mutex to protect callback completion state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * @status.current_image: address of image currently running in flash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * @status.fail_image: address of failed image in flash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * @status.version: the interface version number of RSU firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * @status.state: the state of RSU system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * @status.error_details: error code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * @status.error_location: the error offset inside the image that failed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * @dcmf_version.dcmf0: Quartus dcmf0 version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * @dcmf_version.dcmf1: Quartus dcmf1 version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * @dcmf_version.dcmf2: Quartus dcmf2 version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * @dcmf_version.dcmf3: Quartus dcmf3 version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * @retry_counter: the current image's retry counter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * @max_retry: the preset max retry value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct stratix10_rsu_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct stratix10_svc_chan *chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct stratix10_svc_client client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct completion completion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) unsigned long current_image;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned long fail_image;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) unsigned int version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned int error_details;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned int error_location;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) } status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) unsigned int dcmf0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) unsigned int dcmf1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) unsigned int dcmf2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) unsigned int dcmf3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) } dcmf_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) unsigned int retry_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) unsigned int max_retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * rsu_status_callback() - Status callback from Intel Service Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @client: pointer to service client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * @data: pointer to callback data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Callback from Intel service layer for RSU status request. Status is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * only updated after a system reboot, so a get updated status call is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * made during driver probe.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static void rsu_status_callback(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct stratix10_svc_cb_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct stratix10_rsu_priv *priv = client->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct arm_smccc_res *res = (struct arm_smccc_res *)data->kaddr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (data->status == BIT(SVC_STATUS_OK)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) priv->status.version = FIELD_GET(RSU_VERSION_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) priv->status.state = FIELD_GET(RSU_STATE_MASK, res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) priv->status.fail_image = res->a1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) priv->status.current_image = res->a0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) priv->status.error_location =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) FIELD_GET(RSU_ERROR_LOCATION_MASK, res->a3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) priv->status.error_details =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) FIELD_GET(RSU_ERROR_DETAIL_MASK, res->a3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) dev_err(client->dev, "COMMAND_RSU_STATUS returned 0x%lX\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) res->a0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) priv->status.version = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) priv->status.state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) priv->status.fail_image = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) priv->status.current_image = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) priv->status.error_location = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) priv->status.error_details = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) complete(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * rsu_command_callback() - Update callback from Intel Service Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * @client: pointer to client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * @data: pointer to callback data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * Callback from Intel service layer for RSU commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void rsu_command_callback(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct stratix10_svc_cb_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct stratix10_rsu_priv *priv = client->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) dev_warn(client->dev, "FW doesn't support notify\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) else if (data->status == BIT(SVC_STATUS_ERROR))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) dev_err(client->dev, "Failure, returned status is %lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) BIT(data->status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) complete(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * rsu_retry_callback() - Callback from Intel service layer for getting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * the current image's retry counter from the firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * @client: pointer to client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * @data: pointer to callback data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * Callback from Intel service layer for retry counter, which is used by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * user to know how many times the images is still allowed to reload
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * itself before giving up and starting RSU fail-over flow.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static void rsu_retry_callback(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct stratix10_svc_cb_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct stratix10_rsu_priv *priv = client->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) unsigned int *counter = (unsigned int *)data->kaddr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (data->status == BIT(SVC_STATUS_OK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) priv->retry_counter = *counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) dev_warn(client->dev, "FW doesn't support retry\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) dev_err(client->dev, "Failed to get retry counter %lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) BIT(data->status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) complete(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * rsu_max_retry_callback() - Callback from Intel service layer for getting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * the max retry value from the firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * @client: pointer to client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * @data: pointer to callback data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * Callback from Intel service layer for max retry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static void rsu_max_retry_callback(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct stratix10_svc_cb_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct stratix10_rsu_priv *priv = client->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) unsigned int *max_retry = (unsigned int *)data->kaddr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (data->status == BIT(SVC_STATUS_OK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) priv->max_retry = *max_retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) dev_warn(client->dev, "FW doesn't support max retry\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) dev_err(client->dev, "Failed to get max retry %lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) BIT(data->status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) complete(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * rsu_dcmf_version_callback() - Callback from Intel service layer for getting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * the DCMF version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * @client: pointer to client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * @data: pointer to callback data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * Callback from Intel service layer for DCMF version number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static void rsu_dcmf_version_callback(struct stratix10_svc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct stratix10_svc_cb_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct stratix10_rsu_priv *priv = client->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) unsigned long long *value1 = (unsigned long long *)data->kaddr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) unsigned long long *value2 = (unsigned long long *)data->kaddr2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (data->status == BIT(SVC_STATUS_OK)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) priv->dcmf_version.dcmf0 = FIELD_GET(RSU_DCMF0_MASK, *value1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) priv->dcmf_version.dcmf1 = FIELD_GET(RSU_DCMF1_MASK, *value1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) priv->dcmf_version.dcmf2 = FIELD_GET(RSU_DCMF2_MASK, *value2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) priv->dcmf_version.dcmf3 = FIELD_GET(RSU_DCMF3_MASK, *value2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) dev_err(client->dev, "failed to get DCMF version\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) complete(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * rsu_send_msg() - send a message to Intel service layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * @priv: pointer to rsu private data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * @command: RSU status or update command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * @arg: the request argument, the bitstream address or notify status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) * @callback: function pointer for the callback (status or update)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * Start an Intel service layer transaction to perform the SMC call that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * is necessary to get RSU boot log or set the address of bitstream to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * boot after reboot.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * Returns 0 on success or -ETIMEDOUT on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) static int rsu_send_msg(struct stratix10_rsu_priv *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) enum stratix10_svc_command_code command,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) unsigned long arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) rsu_callback callback)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct stratix10_svc_client_msg msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) mutex_lock(&priv->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) reinit_completion(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) priv->client.receive_cb = callback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) msg.command = command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) msg.arg[0] = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) ret = stratix10_svc_send(priv->chan, &msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) goto status_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) ret = wait_for_completion_interruptible_timeout(&priv->completion,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) RSU_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) dev_err(priv->client.dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) "timeout waiting for SMC call\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) ret = -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) goto status_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) } else if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) dev_err(priv->client.dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) "error %d waiting for SMC call\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) goto status_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) status_done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) stratix10_svc_done(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) mutex_unlock(&priv->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * This driver exposes some optional features of the Intel Stratix 10 SoC FPGA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * The sysfs interfaces exposed here are FPGA Remote System Update (RSU)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * related. They allow user space software to query the configuration system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * status and to request optional reboot behavior specific to Intel FPGAs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) static ssize_t current_image_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return sprintf(buf, "0x%08lx\n", priv->status.current_image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static ssize_t fail_image_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) return sprintf(buf, "0x%08lx\n", priv->status.fail_image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) static ssize_t version_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return sprintf(buf, "0x%08x\n", priv->status.version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) static ssize_t state_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return sprintf(buf, "0x%08x\n", priv->status.state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) static ssize_t error_location_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) return sprintf(buf, "0x%08x\n", priv->status.error_location);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) static ssize_t error_details_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return sprintf(buf, "0x%08x\n", priv->status.error_details);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) static ssize_t retry_counter_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return sprintf(buf, "0x%08x\n", priv->retry_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static ssize_t max_retry_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) return sprintf(buf, "0x%08x\n", priv->max_retry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static ssize_t dcmf0_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) static ssize_t dcmf1_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static ssize_t dcmf2_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) static ssize_t dcmf3_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static ssize_t reboot_image_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) unsigned long address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) ret = kstrtoul(buf, 0, &address);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) ret = rsu_send_msg(priv, COMMAND_RSU_UPDATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) address, rsu_command_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) dev_err(dev, "Error, RSU update returned %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) static ssize_t notify_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) unsigned long status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) ret = kstrtoul(buf, 0, &status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) ret = rsu_send_msg(priv, COMMAND_RSU_NOTIFY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) status, rsu_command_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) dev_err(dev, "Error, RSU notify returned %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) /* to get the updated state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) ret = rsu_send_msg(priv, COMMAND_RSU_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 0, rsu_status_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) dev_err(dev, "Error, getting RSU status %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) ret = rsu_send_msg(priv, COMMAND_RSU_RETRY, 0, rsu_retry_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) dev_err(dev, "Error, getting RSU retry %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) static DEVICE_ATTR_RO(current_image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) static DEVICE_ATTR_RO(fail_image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) static DEVICE_ATTR_RO(state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) static DEVICE_ATTR_RO(version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) static DEVICE_ATTR_RO(error_location);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) static DEVICE_ATTR_RO(error_details);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) static DEVICE_ATTR_RO(retry_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) static DEVICE_ATTR_RO(max_retry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) static DEVICE_ATTR_RO(dcmf0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) static DEVICE_ATTR_RO(dcmf1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) static DEVICE_ATTR_RO(dcmf2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static DEVICE_ATTR_RO(dcmf3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) static DEVICE_ATTR_WO(reboot_image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) static DEVICE_ATTR_WO(notify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) static struct attribute *rsu_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) &dev_attr_current_image.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) &dev_attr_fail_image.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) &dev_attr_state.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) &dev_attr_version.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) &dev_attr_error_location.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) &dev_attr_error_details.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) &dev_attr_retry_counter.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) &dev_attr_max_retry.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) &dev_attr_dcmf0.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) &dev_attr_dcmf1.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) &dev_attr_dcmf2.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) &dev_attr_dcmf3.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) &dev_attr_reboot_image.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) &dev_attr_notify.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) ATTRIBUTE_GROUPS(rsu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static int stratix10_rsu_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) struct stratix10_rsu_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) priv->client.dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) priv->client.receive_cb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) priv->client.priv = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) priv->status.current_image = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) priv->status.fail_image = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) priv->status.error_location = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) priv->status.error_details = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) priv->status.version = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) priv->status.state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) priv->retry_counter = INVALID_RETRY_COUNTER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) priv->dcmf_version.dcmf0 = INVALID_DCMF_VERSION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) priv->dcmf_version.dcmf1 = INVALID_DCMF_VERSION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) priv->dcmf_version.dcmf2 = INVALID_DCMF_VERSION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) priv->dcmf_version.dcmf3 = INVALID_DCMF_VERSION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) priv->max_retry = INVALID_RETRY_COUNTER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) mutex_init(&priv->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) priv->chan = stratix10_svc_request_channel_byname(&priv->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) SVC_CLIENT_RSU);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (IS_ERR(priv->chan)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) dev_err(dev, "couldn't get service channel %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) SVC_CLIENT_RSU);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) return PTR_ERR(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) init_completion(&priv->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) platform_set_drvdata(pdev, priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) /* get the initial state from firmware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) ret = rsu_send_msg(priv, COMMAND_RSU_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 0, rsu_status_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) dev_err(dev, "Error, getting RSU status %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) stratix10_svc_free_channel(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) /* get DCMF version from firmware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) ret = rsu_send_msg(priv, COMMAND_RSU_DCMF_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) 0, rsu_dcmf_version_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) dev_err(dev, "Error, getting DCMF version %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) stratix10_svc_free_channel(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) ret = rsu_send_msg(priv, COMMAND_RSU_RETRY, 0, rsu_retry_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) dev_err(dev, "Error, getting RSU retry %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) stratix10_svc_free_channel(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) ret = rsu_send_msg(priv, COMMAND_RSU_MAX_RETRY, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) rsu_max_retry_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) dev_err(dev, "Error, getting RSU max retry %i\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) stratix10_svc_free_channel(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) static int stratix10_rsu_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) struct stratix10_rsu_priv *priv = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) stratix10_svc_free_channel(priv->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) static struct platform_driver stratix10_rsu_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) .probe = stratix10_rsu_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) .remove = stratix10_rsu_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) .name = "stratix10-rsu",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) .dev_groups = rsu_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) module_platform_driver(stratix10_rsu_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) MODULE_DESCRIPTION("Intel Remote System Update Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) MODULE_AUTHOR("Richard Gong <richard.gong@intel.com>");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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