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![Etienne Carriere](/assets/img/avatar_default.png)
Add tests for SCMI reset controllers. A test device driver sandbox-scmi_devices.c is used to get reset resources, allowing further resets manipulation. Change sandbox-smci_agent to emulate 1 reset controller exposed through an agent. Add DM test scmi_resets to test this reset controller. Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org> Cc: Simon Glass <sjg@chromium.org> Cc: Peng Fan <peng.fan@nxp.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org>
204 lines
5.6 KiB
C
204 lines
5.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020, Linaro Limited
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*
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* Tests scmi_agent uclass and the SCMI drivers implemented in other
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* uclass devices probe when a SCMI server exposes resources.
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*
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* Note in test.dts the protocol@10 node in agent 1. Protocol 0x10 is not
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* implemented in U-Boot SCMI components but the implementation is exepected
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* to not complain on unknown protocol IDs, as long as it is not used. Note
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* in test.dts tests that SCMI drivers probing does not fail for such an
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* unknown SCMI protocol ID.
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*/
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#include <common.h>
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#include <clk.h>
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#include <dm.h>
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#include <reset.h>
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#include <asm/scmi_test.h>
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#include <dm/device-internal.h>
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#include <dm/test.h>
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#include <linux/kconfig.h>
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#include <test/ut.h>
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static int ut_assert_scmi_state_preprobe(struct unit_test_state *uts)
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{
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struct sandbox_scmi_service *scmi_ctx = sandbox_scmi_service_ctx();
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ut_assertnonnull(scmi_ctx);
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if (scmi_ctx->agent_count)
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ut_asserteq(2, scmi_ctx->agent_count);
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return 0;
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}
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static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
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struct udevice *dev)
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{
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struct sandbox_scmi_devices *scmi_devices;
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struct sandbox_scmi_service *scmi_ctx;
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/* Device references to check context against test sequence */
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scmi_devices = sandbox_scmi_devices_ctx(dev);
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ut_assertnonnull(scmi_devices);
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if (IS_ENABLED(CONFIG_CLK_SCMI))
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ut_asserteq(3, scmi_devices->clk_count);
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if (IS_ENABLED(CONFIG_RESET_SCMI))
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ut_asserteq(1, scmi_devices->reset_count);
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/* State of the simulated SCMI server exposed */
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scmi_ctx = sandbox_scmi_service_ctx();
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ut_asserteq(2, scmi_ctx->agent_count);
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ut_assertnonnull(scmi_ctx->agent[0]);
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ut_asserteq(2, scmi_ctx->agent[0]->clk_count);
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ut_assertnonnull(scmi_ctx->agent[0]->clk);
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ut_asserteq(1, scmi_ctx->agent[0]->reset_count);
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ut_assertnonnull(scmi_ctx->agent[0]->reset);
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ut_assertnonnull(scmi_ctx->agent[1]);
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ut_assertnonnull(scmi_ctx->agent[1]->clk);
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ut_asserteq(1, scmi_ctx->agent[1]->clk_count);
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return 0;
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}
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static int load_sandbox_scmi_test_devices(struct unit_test_state *uts,
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struct udevice **dev)
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{
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int ret;
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ret = ut_assert_scmi_state_preprobe(uts);
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if (ret)
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return ret;
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ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_scmi",
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dev));
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ut_assertnonnull(*dev);
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return ut_assert_scmi_state_postprobe(uts, *dev);
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}
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static int release_sandbox_scmi_test_devices(struct unit_test_state *uts,
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struct udevice *dev)
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{
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ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
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/* Not sure test devices are fully removed, agent may not be visible */
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return 0;
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}
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/*
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* Test SCMI states when loading and releasing resources
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* related to SCMI drivers.
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*/
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static int dm_test_scmi_sandbox_agent(struct unit_test_state *uts)
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{
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struct udevice *dev = NULL;
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int ret;
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ret = load_sandbox_scmi_test_devices(uts, &dev);
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if (!ret)
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ret = release_sandbox_scmi_test_devices(uts, dev);
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return ret;
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}
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DM_TEST(dm_test_scmi_sandbox_agent, UT_TESTF_SCAN_FDT);
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static int dm_test_scmi_clocks(struct unit_test_state *uts)
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{
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struct sandbox_scmi_devices *scmi_devices;
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struct sandbox_scmi_service *scmi_ctx;
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struct udevice *dev = NULL;
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int ret_dev;
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int ret;
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if (!IS_ENABLED(CONFIG_CLK_SCMI))
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return 0;
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ret = load_sandbox_scmi_test_devices(uts, &dev);
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if (ret)
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return ret;
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scmi_devices = sandbox_scmi_devices_ctx(dev);
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scmi_ctx = sandbox_scmi_service_ctx();
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/* Test SCMI clocks rate manipulation */
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ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0]));
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ut_asserteq(333, clk_get_rate(&scmi_devices->clk[1]));
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ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2]));
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ret_dev = clk_set_rate(&scmi_devices->clk[1], 1088);
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ut_assert(!ret_dev || ret_dev == 1088);
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ut_asserteq(1000, scmi_ctx->agent[0]->clk[0].rate);
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ut_asserteq(1088, scmi_ctx->agent[0]->clk[1].rate);
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ut_asserteq(44, scmi_ctx->agent[1]->clk[0].rate);
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ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0]));
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ut_asserteq(1088, clk_get_rate(&scmi_devices->clk[1]));
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ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2]));
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/* restore original rate for further tests */
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ret_dev = clk_set_rate(&scmi_devices->clk[1], 333);
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ut_assert(!ret_dev || ret_dev == 333);
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/* Test SCMI clocks gating manipulation */
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ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
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ut_assert(!scmi_ctx->agent[0]->clk[1].enabled);
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ut_assert(!scmi_ctx->agent[1]->clk[0].enabled);
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ut_asserteq(0, clk_enable(&scmi_devices->clk[1]));
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ut_asserteq(0, clk_enable(&scmi_devices->clk[2]));
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ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
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ut_assert(scmi_ctx->agent[0]->clk[1].enabled);
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ut_assert(scmi_ctx->agent[1]->clk[0].enabled);
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ut_assertok(clk_disable(&scmi_devices->clk[1]));
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ut_assertok(clk_disable(&scmi_devices->clk[2]));
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ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
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ut_assert(!scmi_ctx->agent[0]->clk[1].enabled);
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ut_assert(!scmi_ctx->agent[1]->clk[0].enabled);
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return release_sandbox_scmi_test_devices(uts, dev);
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}
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DM_TEST(dm_test_scmi_clocks, UT_TESTF_SCAN_FDT);
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static int dm_test_scmi_resets(struct unit_test_state *uts)
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{
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struct sandbox_scmi_devices *scmi_devices;
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struct sandbox_scmi_service *scmi_ctx;
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struct udevice *dev = NULL;
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int ret;
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if (!IS_ENABLED(CONFIG_RESET_SCMI))
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return 0;
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ret = load_sandbox_scmi_test_devices(uts, &dev);
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if (ret)
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return ret;
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scmi_devices = sandbox_scmi_devices_ctx(dev);
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scmi_ctx = sandbox_scmi_service_ctx();
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/* Test SCMI resect controller manipulation */
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ut_assert(!scmi_ctx->agent[0]->reset[0].asserted)
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ut_assertok(reset_assert(&scmi_devices->reset[0]));
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ut_assert(scmi_ctx->agent[0]->reset[0].asserted)
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ut_assertok(reset_deassert(&scmi_devices->reset[0]));
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ut_assert(!scmi_ctx->agent[0]->reset[0].asserted);
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return release_sandbox_scmi_test_devices(uts, dev);
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}
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DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT);
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