diff options
Diffstat (limited to 'test/dm/scmi.c')
| -rw-r--r-- | test/dm/scmi.c | 554 |
1 files changed, 554 insertions, 0 deletions
diff --git a/test/dm/scmi.c b/test/dm/scmi.c new file mode 100644 index 00000000000..69fc900e342 --- /dev/null +++ b/test/dm/scmi.c @@ -0,0 +1,554 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020, Linaro Limited + * + * Tests scmi_agent uclass and the SCMI drivers implemented in other + * uclass devices probe when a SCMI server exposes resources. + * + * Note in test.dts the protocol@10 node in scmi node. Protocol 0x10 is not + * implemented in U-Boot SCMI components but the implementation is expected + * to not complain on unknown protocol IDs, as long as it is not used. Note + * in test.dts tests that SCMI drivers probing does not fail for such an + * unknown SCMI protocol ID. + */ + +#include <clk.h> +#include <dm.h> +#include <reset.h> +#include <scmi_agent.h> +#include <scmi_agent-uclass.h> +#include <scmi_protocols.h> +#include <vsprintf.h> +#include <asm/scmi_test.h> +#include <dm/device-internal.h> +#include <dm/test.h> +#include <power/regulator.h> +#include <test/ut.h> + +static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts, + struct sandbox_scmi_agent *agent, + struct udevice *dev) +{ + struct sandbox_scmi_devices *scmi_devices; + + /* Device references to check context against test sequence */ + scmi_devices = sandbox_scmi_devices_ctx(dev); + ut_assertnonnull(scmi_devices); + ut_asserteq(2, scmi_devices->clk_count); + ut_asserteq(1, scmi_devices->reset_count); + ut_asserteq(2, scmi_devices->regul_count); + + /* State of the simulated SCMI server exposed */ + ut_asserteq(3, agent->clk_count); + ut_assertnonnull(agent->clk); + ut_asserteq(1, agent->reset_count); + ut_assertnonnull(agent->reset); + ut_asserteq(2, agent->voltd_count); + ut_assertnonnull(agent->voltd); + + return 0; +} + +static int load_sandbox_scmi_test_devices(struct unit_test_state *uts, + struct sandbox_scmi_agent **ctx, + struct udevice **dev) +{ + struct udevice *agent_dev; + + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + + *ctx = sandbox_scmi_agent_ctx(agent_dev); + ut_assertnonnull(*ctx); + + /* probe */ + ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_scmi", + dev)); + ut_assertnonnull(*dev); + + return ut_assert_scmi_state_postprobe(uts, *ctx, *dev); +} + +static int release_sandbox_scmi_test_devices(struct unit_test_state *uts, + struct udevice *dev) +{ + /* un-probe */ + ut_assertok(device_remove(dev, DM_REMOVE_NORMAL)); + + return 0; +} + +/* + * Test SCMI states when loading and releasing resources + * related to SCMI drivers. + */ +static int dm_test_scmi_sandbox_agent(struct unit_test_state *uts) +{ + struct sandbox_scmi_agent *ctx; + struct udevice *dev = NULL; + int ret; + + ret = load_sandbox_scmi_test_devices(uts, &ctx, &dev); + if (!ret) + ret = release_sandbox_scmi_test_devices(uts, dev); + + return ret; +} +DM_TEST(dm_test_scmi_sandbox_agent, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_base(struct unit_test_state *uts) +{ + struct udevice *agent_dev, *base; + struct scmi_agent_priv *priv; + u32 version, num_agents, num_protocols, impl_version; + u32 attributes, agent_id; + u8 *vendor, *agent_name, *protocols; + int ret; + + /* preparation */ + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + ut_assertnonnull(priv = dev_get_uclass_plat(agent_dev)); + ut_assertnonnull(base = scmi_get_protocol(agent_dev, + SCMI_PROTOCOL_ID_BASE)); + + /* version */ + ret = scmi_base_protocol_version(base, &version); + ut_assertok(ret); + ut_asserteq(priv->version, version); + + /* protocol attributes */ + ret = scmi_base_protocol_attrs(base, &num_agents, &num_protocols); + ut_assertok(ret); + ut_asserteq(priv->num_agents, num_agents); + ut_asserteq(priv->num_protocols, num_protocols); + + /* discover vendor */ + ret = scmi_base_discover_vendor(base, &vendor); + ut_assertok(ret); + ut_asserteq_str(priv->vendor, vendor); + free(vendor); + + /* message attributes */ + ret = scmi_base_protocol_message_attrs(base, + SCMI_BASE_DISCOVER_SUB_VENDOR, + &attributes); + ut_assertok(ret); + ut_assertok(attributes); + + /* discover sub vendor */ + ret = scmi_base_discover_sub_vendor(base, &vendor); + ut_assertok(ret); + ut_asserteq_str(priv->sub_vendor, vendor); + free(vendor); + + /* impl version */ + ret = scmi_base_discover_impl_version(base, &impl_version); + ut_assertok(ret); + ut_asserteq(priv->impl_version, impl_version); + + /* discover agent (my self) */ + ret = scmi_base_discover_agent(base, 0xffffffff, &agent_id, + &agent_name); + ut_assertok(ret); + ut_asserteq(priv->agent_id, agent_id); + ut_asserteq_str(priv->agent_name, agent_name); + free(agent_name); + + /* discover protocols */ + ret = scmi_base_discover_list_protocols(base, &protocols); + ut_asserteq(num_protocols, ret); + ut_asserteq_mem(priv->protocols, protocols, sizeof(u8) * num_protocols); + free(protocols); + + /* + * NOTE: Sandbox SCMI driver handles device-0 only. It supports setting + * access and protocol permissions, but doesn't allow unsetting them nor + * resetting the configurations. + */ + /* set device permissions */ + ret = scmi_base_set_device_permissions(base, agent_id, 0, + SCMI_BASE_SET_DEVICE_PERMISSIONS_ACCESS); + ut_assertok(ret); /* SCMI_SUCCESS */ + ret = scmi_base_set_device_permissions(base, agent_id, 1, + SCMI_BASE_SET_DEVICE_PERMISSIONS_ACCESS); + ut_asserteq(-ENOENT, ret); /* SCMI_NOT_FOUND */ + ret = scmi_base_set_device_permissions(base, agent_id, 0, 0); + ut_asserteq(-EACCES, ret); /* SCMI_DENIED */ + + /* set protocol permissions */ + ret = scmi_base_set_protocol_permissions(base, agent_id, 0, + SCMI_PROTOCOL_ID_CLOCK, + SCMI_BASE_SET_PROTOCOL_PERMISSIONS_ACCESS); + ut_assertok(ret); /* SCMI_SUCCESS */ + ret = scmi_base_set_protocol_permissions(base, agent_id, 1, + SCMI_PROTOCOL_ID_CLOCK, + SCMI_BASE_SET_PROTOCOL_PERMISSIONS_ACCESS); + ut_asserteq(-ENOENT, ret); /* SCMI_NOT_FOUND */ + ret = scmi_base_set_protocol_permissions(base, agent_id, 0, + SCMI_PROTOCOL_ID_CLOCK, 0); + ut_asserteq(-EACCES, ret); /* SCMI_DENIED */ + + /* reset agent configuration */ + ret = scmi_base_reset_agent_configuration(base, agent_id, 0); + ut_asserteq(-EACCES, ret); /* SCMI_DENIED */ + ret = scmi_base_reset_agent_configuration(base, agent_id, + SCMI_BASE_RESET_ALL_ACCESS_PERMISSIONS); + ut_asserteq(-EACCES, ret); /* SCMI_DENIED */ + ret = scmi_base_reset_agent_configuration(base, agent_id, 0); + ut_asserteq(-EACCES, ret); /* SCMI_DENIED */ + + return 0; +} + +DM_TEST(dm_test_scmi_base, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_cmd(struct unit_test_state *uts) +{ + struct udevice *agent_dev; + int num_proto = 0; + char cmd_out[30]; + + if (!CONFIG_IS_ENABLED(CMD_SCMI)) + return -EAGAIN; + + /* preparation */ + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + + /* + * Estimate the number of provided protocols. + * This estimation is correct as far as a corresponding + * protocol support is added to sandbox fake serer. + */ + if (CONFIG_IS_ENABLED(POWER_DOMAIN)) + num_proto++; + if (CONFIG_IS_ENABLED(CLK_SCMI)) + num_proto++; + if (CONFIG_IS_ENABLED(RESET_SCMI)) + num_proto++; + if (CONFIG_IS_ENABLED(DM_REGULATOR_SCMI)) + num_proto++; + + /* scmi info */ + ut_assertok(run_command("scmi info", 0)); + + ut_assert_nextline("SCMI device: scmi"); + snprintf(cmd_out, 30, " protocol version: 0x%x", + SCMI_BASE_PROTOCOL_VERSION); + ut_assert_nextline(cmd_out); + ut_assert_nextline(" # of agents: 2"); + ut_assert_nextline(" 0: platform"); + ut_assert_nextline(" > 1: OSPM"); + snprintf(cmd_out, 30, " # of protocols: %d", num_proto); + ut_assert_nextline(cmd_out); + if (CONFIG_IS_ENABLED(SCMI_POWER_DOMAIN)) + ut_assert_nextline(" Power domain management"); + if (CONFIG_IS_ENABLED(CLK_SCMI)) + ut_assert_nextline(" Clock management"); + if (CONFIG_IS_ENABLED(RESET_SCMI)) + ut_assert_nextline(" Reset domain management"); + if (CONFIG_IS_ENABLED(DM_REGULATOR_SCMI)) + ut_assert_nextline(" Voltage domain management"); + ut_assert_nextline(" vendor: U-Boot"); + ut_assert_nextline(" sub vendor: Sandbox"); + ut_assert_nextline(" impl version: 0x1"); + + ut_assert_console_end(); + + /* scmi perm_dev */ + ut_assertok(run_command("scmi perm_dev 1 0 1", 0)); + ut_assert_console_end(); + + ut_assert(run_command("scmi perm_dev 1 0 0", 0)); + ut_assert_nextline("Denying access to device:0 failed (-13)"); + ut_assert_console_end(); + + /* scmi perm_proto */ + ut_assertok(run_command("scmi perm_proto 1 0 14 1", 0)); + ut_assert_console_end(); + + ut_assert(run_command("scmi perm_proto 1 0 14 0", 0)); + ut_assert_nextline("Denying access to protocol:0x14 on device:0 failed (-13)"); + ut_assert_console_end(); + + /* scmi reset */ + ut_assert(run_command("scmi reset 1 1", 0)); + ut_assert_nextline("Reset failed (-13)"); + ut_assert_console_end(); + + return 0; +} + +DM_TEST(dm_test_scmi_cmd, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_power_domains(struct unit_test_state *uts) +{ + struct sandbox_scmi_agent *agent; + struct sandbox_scmi_devices *scmi_devices; + struct udevice *agent_dev, *pwd, *dev; + u32 version, count, attributes, pstate; + u64 stats_addr; + size_t stats_len; + u8 *name; + int ret; + + if (!CONFIG_IS_ENABLED(SCMI_POWER_DOMAIN)) + return -EAGAIN; + + /* preparation */ + ut_assertok(load_sandbox_scmi_test_devices(uts, &agent, &dev)); + ut_assertnonnull(agent); + scmi_devices = sandbox_scmi_devices_ctx(dev); + ut_assertnonnull(scmi_devices); + ut_asserteq(2, scmi_devices->pwdom->id); /* in test.dts */ + + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + pwd = scmi_get_protocol(agent_dev, SCMI_PROTOCOL_ID_POWER_DOMAIN); + ut_assertnonnull(pwd); + + /* + * SCMI Power domain management protocol interfaces + */ + /* version */ + ret = scmi_generic_protocol_version(pwd, SCMI_PROTOCOL_ID_POWER_DOMAIN, + &version); + ut_assertok(ret); + ut_asserteq(agent->pwdom_version, version); + + /* protocol attributes */ + ret = scmi_pwd_protocol_attrs(pwd, &count, &stats_addr, &stats_len); + ut_assertok(ret); + ut_asserteq(agent->pwdom_count, count); + ut_asserteq(0, stats_len); + + /* protocol message attributes */ + ret = scmi_pwd_protocol_message_attrs(pwd, SCMI_PWD_STATE_SET, + &attributes); + ut_assertok(ret); + ret = scmi_pwd_protocol_message_attrs(pwd, SCMI_PWD_STATE_NOTIFY, + &attributes); + ut_asserteq(-ENOENT, ret); /* the protocol not supported */ + + /* power domain attributes */ + ret = scmi_pwd_attrs(pwd, 0, &attributes, &name); + ut_assertok(ret); + ut_asserteq_str("power-domain--0", name); + free(name); + + ret = scmi_pwd_attrs(pwd, 10, &attributes, &name); + ut_asserteq(-ENOENT, ret); /* domain-10 doesn't exist */ + + /* power domain state set/get */ + ret = scmi_pwd_state_set(pwd, 0, 0, 0); + ut_assertok(ret); + ret = scmi_pwd_state_get(pwd, 0, &pstate); + ut_assertok(ret); + ut_asserteq(0, pstate); /* ON */ + + ret = scmi_pwd_state_set(pwd, 0, 0, SCMI_PWD_PSTATE_TYPE_LOST); + ut_assertok(ret); + ret = scmi_pwd_state_get(pwd, 0, &pstate); + ut_assertok(ret); + ut_asserteq(SCMI_PWD_PSTATE_TYPE_LOST, pstate); /* OFF */ + + ret = scmi_pwd_state_set(pwd, 0, 10, 0); + ut_asserteq(-ENOENT, ret); + + /* power domain name get */ + ret = scmi_pwd_name_get(pwd, 0, &name); + ut_assertok(ret); + ut_asserteq_str("power-domain--0-extended", name); + free(name); + + ret = scmi_pwd_name_get(pwd, 10, &name); + ut_asserteq(-ENOENT, ret); /* domain-10 doesn't exist */ + + /* + * U-Boot driver model interfaces + */ + /* power_domain_on */ + ret = power_domain_on(scmi_devices->pwdom); + ut_assertok(ret); + ret = scmi_pwd_state_get(pwd, scmi_devices->pwdom->id, &pstate); + ut_assertok(ret); + ut_asserteq(0, pstate); /* ON */ + + /* power_domain_off */ + ret = power_domain_off(scmi_devices->pwdom); + ut_assertok(ret); + ret = scmi_pwd_state_get(pwd, scmi_devices->pwdom->id, &pstate); + ut_assertok(ret); + ut_asserteq(SCMI_PWD_PSTATE_TYPE_LOST, pstate); /* OFF */ + + return release_sandbox_scmi_test_devices(uts, dev); +} + +DM_TEST(dm_test_scmi_power_domains, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_clocks(struct unit_test_state *uts) +{ + struct sandbox_scmi_agent *agent; + struct sandbox_scmi_devices *scmi_devices; + struct udevice *agent_dev, *clock_dev, *dev; + int ret_dev; + int ret; + + if (!CONFIG_IS_ENABLED(CLK_SCMI)) + return -EAGAIN; + + ret = load_sandbox_scmi_test_devices(uts, &agent, &dev); + if (ret) + return ret; + + scmi_devices = sandbox_scmi_devices_ctx(dev); + ut_assertnonnull(scmi_devices); + + /* Sandbox SCMI clock protocol has its own channel */ + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + clock_dev = scmi_get_protocol(agent_dev, SCMI_PROTOCOL_ID_CLOCK); + ut_assertnonnull(clock_dev); + ut_asserteq(0x14, sandbox_scmi_channel_id(clock_dev)); + + /* Test SCMI clocks rate manipulation */ + ut_asserteq(333, agent->clk[0].rate); + ut_asserteq(200, agent->clk[1].rate); + ut_asserteq(1000, agent->clk[2].rate); + + ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0])); + ut_asserteq(333, clk_get_rate(&scmi_devices->clk[1])); + + ret_dev = clk_set_rate(&scmi_devices->clk[1], 1088); + ut_assert(!ret_dev || ret_dev == 1088); + + ut_asserteq(1088, agent->clk[0].rate); + ut_asserteq(200, agent->clk[1].rate); + ut_asserteq(1000, agent->clk[2].rate); + + ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0])); + ut_asserteq(1088, clk_get_rate(&scmi_devices->clk[1])); + + /* restore original rate for further tests */ + ret_dev = clk_set_rate(&scmi_devices->clk[1], 333); + ut_assert(!ret_dev || ret_dev == 333); + + /* Test SCMI clocks gating manipulation */ + ut_assert(!agent->clk[0].enabled); + ut_assert(!agent->clk[1].enabled); + ut_assert(!agent->clk[2].enabled); + + ut_asserteq(0, clk_enable(&scmi_devices->clk[1])); + + ut_assert(agent->clk[0].enabled); + ut_assert(!agent->clk[1].enabled); + ut_assert(!agent->clk[2].enabled); + + ut_assertok(clk_disable(&scmi_devices->clk[1])); + + ut_assert(!agent->clk[0].enabled); + ut_assert(!agent->clk[1].enabled); + ut_assert(!agent->clk[2].enabled); + + return release_sandbox_scmi_test_devices(uts, dev); +} +DM_TEST(dm_test_scmi_clocks, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_resets(struct unit_test_state *uts) +{ + struct sandbox_scmi_agent *agent; + struct sandbox_scmi_devices *scmi_devices; + struct udevice *agent_dev, *reset_dev, *dev = NULL; + int ret; + + if (!CONFIG_IS_ENABLED(RESET_SCMI)) + return -EAGAIN; + + ret = load_sandbox_scmi_test_devices(uts, &agent, &dev); + if (ret) + return ret; + + scmi_devices = sandbox_scmi_devices_ctx(dev); + ut_assertnonnull(scmi_devices); + + /* Sandbox SCMI reset protocol doesn't have its own channel */ + ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi", + &agent_dev)); + ut_assertnonnull(agent_dev); + reset_dev = scmi_get_protocol(agent_dev, SCMI_PROTOCOL_ID_RESET_DOMAIN); + ut_assertnonnull(reset_dev); + ut_asserteq(0x0, sandbox_scmi_channel_id(reset_dev)); + + /* Test SCMI resect controller manipulation */ + ut_assert(!agent->reset[0].asserted); + + ut_assertok(reset_assert(&scmi_devices->reset[0])); + ut_assert(agent->reset[0].asserted); + + ut_assertok(reset_deassert(&scmi_devices->reset[0])); + ut_assert(!agent->reset[0].asserted); + + return release_sandbox_scmi_test_devices(uts, dev); +} +DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT); + +static int dm_test_scmi_voltage_domains(struct unit_test_state *uts) +{ + struct sandbox_scmi_agent *agent; + struct sandbox_scmi_devices *scmi_devices; + struct dm_regulator_uclass_plat *uc_pdata; + struct udevice *dev; + struct udevice *regul0_dev; + + if (!CONFIG_IS_ENABLED(DM_REGULATOR_SCMI)) + return -EAGAIN; + + ut_assertok(load_sandbox_scmi_test_devices(uts, &agent, &dev)); + + scmi_devices = sandbox_scmi_devices_ctx(dev); + ut_assertnonnull(scmi_devices); + + /* Set/Get an SCMI voltage domain level */ + regul0_dev = scmi_devices->regul[0]; + ut_assert(regul0_dev); + + uc_pdata = dev_get_uclass_plat(regul0_dev); + ut_assert(uc_pdata); + + ut_assertok(regulator_set_value(regul0_dev, uc_pdata->min_uV)); + ut_asserteq(agent->voltd[0].voltage_uv, uc_pdata->min_uV); + + ut_assert(regulator_get_value(regul0_dev) == uc_pdata->min_uV); + + ut_assertok(regulator_set_value(regul0_dev, uc_pdata->max_uV)); + ut_asserteq(agent->voltd[0].voltage_uv, uc_pdata->max_uV); + + ut_assert(regulator_get_value(regul0_dev) == uc_pdata->max_uV); + + /* Enable/disable SCMI voltage domains */ + ut_assertok(regulator_set_enable(scmi_devices->regul[0], false)); + ut_assertok(regulator_set_enable(scmi_devices->regul[1], false)); + ut_assert(!agent->voltd[0].enabled); + ut_assert(!agent->voltd[1].enabled); + + ut_assertok(regulator_set_enable(scmi_devices->regul[0], true)); + ut_assert(agent->voltd[0].enabled); + ut_assert(!agent->voltd[1].enabled); + + ut_assertok(regulator_set_enable(scmi_devices->regul[1], true)); + ut_assert(agent->voltd[0].enabled); + ut_assert(agent->voltd[1].enabled); + + ut_assertok(regulator_set_enable(scmi_devices->regul[0], false)); + ut_assert(!agent->voltd[0].enabled); + ut_assert(agent->voltd[1].enabled); + + return release_sandbox_scmi_test_devices(uts, dev); +} +DM_TEST(dm_test_scmi_voltage_domains, UT_TESTF_SCAN_FDT); |