diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/iio/iio_event_monitor.c | 8 | ||||
| -rw-r--r-- | tools/iio/iio_generic_buffer.c | 13 | ||||
| -rw-r--r-- | tools/power/cpupower/man/cpupower-powercap-info.1 | 2 | ||||
| -rw-r--r-- | tools/testing/cxl/test/cxl.c | 2 | ||||
| -rw-r--r-- | tools/testing/cxl/test/mem.c | 83 | ||||
| -rw-r--r-- | tools/testing/selftests/riscv/hwprobe/Makefile | 9 | ||||
| -rw-r--r-- | tools/testing/selftests/riscv/hwprobe/cbo.c | 228 | ||||
| -rw-r--r-- | tools/testing/selftests/riscv/hwprobe/hwprobe.c | 64 | ||||
| -rw-r--r-- | tools/testing/selftests/riscv/hwprobe/hwprobe.h | 15 |
9 files changed, 366 insertions, 58 deletions
diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index 0a5c2bb60030..2eaaa7123b04 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -59,6 +59,10 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_POSITIONRELATIVE] = "positionrelative", [IIO_PHASE] = "phase", [IIO_MASSCONCENTRATION] = "massconcentration", + [IIO_DELTA_ANGL] = "deltaangl", + [IIO_DELTA_VELOCITY] = "deltavelocity", + [IIO_COLORTEMP] = "colortemp", + [IIO_CHROMATICITY] = "chromaticity", }; static const char * const iio_ev_type_text[] = { @@ -173,6 +177,10 @@ static bool event_is_known(struct iio_event_data *event) case IIO_POSITIONRELATIVE: case IIO_PHASE: case IIO_MASSCONCENTRATION: + case IIO_DELTA_ANGL: + case IIO_DELTA_VELOCITY: + case IIO_COLORTEMP: + case IIO_CHROMATICITY: break; default: return false; diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c index 44bbf80f0cfd..0d0a7a19d6f9 100644 --- a/tools/iio/iio_generic_buffer.c +++ b/tools/iio/iio_generic_buffer.c @@ -54,9 +54,12 @@ enum autochan { static unsigned int size_from_channelarray(struct iio_channel_info *channels, int num_channels) { unsigned int bytes = 0; - int i = 0; + int i = 0, max = 0; + unsigned int misalignment; while (i < num_channels) { + if (channels[i].bytes > max) + max = channels[i].bytes; if (bytes % channels[i].bytes == 0) channels[i].location = bytes; else @@ -66,6 +69,14 @@ static unsigned int size_from_channelarray(struct iio_channel_info *channels, in bytes = channels[i].location + channels[i].bytes; i++; } + /* + * We want the data in next sample to also be properly aligned so + * we'll add padding at the end if needed. Adding padding only + * works for channel data which size is 2^n bytes. + */ + misalignment = bytes % max; + if (misalignment) + bytes += max - misalignment; return bytes; } diff --git a/tools/power/cpupower/man/cpupower-powercap-info.1 b/tools/power/cpupower/man/cpupower-powercap-info.1 index df3087000efb..145d6f06fa72 100644 --- a/tools/power/cpupower/man/cpupower-powercap-info.1 +++ b/tools/power/cpupower/man/cpupower-powercap-info.1 @@ -17,7 +17,7 @@ settings of all cores, see cpupower(1) how to choose specific cores. .SH "DOCUMENTATION" kernel sources: -Documentation/power/powercap/powercap.txt +Documentation/power/powercap/powercap.rst .SH "SEE ALSO" diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index fb6ab9cef84f..b88546299902 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -831,7 +831,7 @@ static void mock_init_hdm_decoder(struct cxl_decoder *cxld) cxld->interleave_ways = 2; else cxld->interleave_ways = 1; - cxld->interleave_granularity = 256; + cxld->interleave_granularity = 4096; cxld->hpa_range = (struct range) { .start = base, .end = base + size - 1, diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 464fc39ed277..ee61fa3a2411 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -89,6 +89,12 @@ static struct cxl_cel_entry mock_cel[] = { .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | EFFECT(CONF_CHANGE_IMMEDIATE)), }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_SANITIZE), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE) | + EFFECT(SECURITY_CHANGE_IMMEDIATE) | + EFFECT(BACKGROUND_OP)), + }, }; /* See CXL 2.0 Table 181 Get Health Info Output Payload */ @@ -133,7 +139,6 @@ struct mock_event_log { }; struct mock_event_store { - struct cxl_memdev_state *mds; struct mock_event_log mock_logs[CXL_EVENT_TYPE_MAX]; u32 ev_status; }; @@ -150,8 +155,10 @@ struct cxl_mockmem_data { int user_limit; int master_limit; struct mock_event_store mes; + struct cxl_memdev_state *mds; u8 event_buf[SZ_4K]; u64 timestamp; + unsigned long sanitize_timeout; }; static struct mock_event_log *event_find_log(struct device *dev, int log_type) @@ -326,7 +333,7 @@ static void cxl_mock_event_trigger(struct device *dev) event_reset_log(log); } - cxl_mem_get_event_records(mes->mds, mes->ev_status); + cxl_mem_get_event_records(mdata->mds, mes->ev_status); } struct cxl_event_record_raw maint_needed = { @@ -567,9 +574,26 @@ static int mock_partition_info(struct cxl_mbox_cmd *cmd) return 0; } +void cxl_mockmem_sanitize_work(struct work_struct *work) +{ + struct cxl_memdev_state *mds = + container_of(work, typeof(*mds), security.poll_dwork.work); + + mutex_lock(&mds->mbox_mutex); + if (mds->security.sanitize_node) + sysfs_notify_dirent(mds->security.sanitize_node); + mds->security.sanitize_active = false; + mutex_unlock(&mds->mbox_mutex); + + dev_dbg(mds->cxlds.dev, "sanitize complete\n"); +} + static int mock_sanitize(struct cxl_mockmem_data *mdata, struct cxl_mbox_cmd *cmd) { + struct cxl_memdev_state *mds = mdata->mds; + int rc = 0; + if (cmd->size_in != 0) return -EINVAL; @@ -585,7 +609,16 @@ static int mock_sanitize(struct cxl_mockmem_data *mdata, return -ENXIO; } - return 0; /* assume less than 2 secs, no bg */ + mutex_lock(&mds->mbox_mutex); + if (schedule_delayed_work(&mds->security.poll_dwork, + msecs_to_jiffies(mdata->sanitize_timeout))) { + mds->security.sanitize_active = true; + dev_dbg(mds->cxlds.dev, "sanitize issued\n"); + } else + rc = -EBUSY; + mutex_unlock(&mds->mbox_mutex); + + return rc; } static int mock_secure_erase(struct cxl_mockmem_data *mdata, @@ -1237,6 +1270,7 @@ static int mock_transfer_fw(struct cxl_mockmem_data *mdata, } memcpy(fw + offset, transfer->data, length); + usleep_range(1500, 2000); return 0; } @@ -1415,16 +1449,16 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (IS_ERR(mds)) return PTR_ERR(mds); + mdata->mds = mds; mds->mbox_send = cxl_mock_mbox_send; mds->payload_size = SZ_4K; mds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf; + INIT_DELAYED_WORK(&mds->security.poll_dwork, cxl_mockmem_sanitize_work); cxlds = &mds->cxlds; cxlds->serial = pdev->id; - if (is_rcd(pdev)) { + if (is_rcd(pdev)) cxlds->rcd = true; - cxlds->component_reg_phys = CXL_RESOURCE_NONE; - } rc = cxl_enumerate_cmds(mds); if (rc) @@ -1447,14 +1481,17 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (rc) return rc; - mdata->mes.mds = mds; cxl_mock_add_event_logs(&mdata->mes); - cxlmd = devm_cxl_add_memdev(cxlds); + cxlmd = devm_cxl_add_memdev(&pdev->dev, cxlds); if (IS_ERR(cxlmd)) return PTR_ERR(cxlmd); - rc = cxl_memdev_setup_fw_upload(mds); + rc = devm_cxl_setup_fw_upload(&pdev->dev, mds); + if (rc) + return rc; + + rc = devm_cxl_sanitize_setup_notifier(&pdev->dev, cxlmd); if (rc) return rc; @@ -1526,10 +1563,38 @@ static ssize_t fw_buf_checksum_show(struct device *dev, static DEVICE_ATTR_RO(fw_buf_checksum); +static ssize_t sanitize_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%lu\n", mdata->sanitize_timeout); +} + +static ssize_t sanitize_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + unsigned long val; + int rc; + + rc = kstrtoul(buf, 0, &val); + if (rc) + return rc; + + mdata->sanitize_timeout = val; + + return count; +} + +static DEVICE_ATTR_RW(sanitize_timeout); + static struct attribute *cxl_mock_mem_attrs[] = { &dev_attr_security_lock.attr, &dev_attr_event_trigger.attr, &dev_attr_fw_buf_checksum.attr, + &dev_attr_sanitize_timeout.attr, NULL }; ATTRIBUTE_GROUPS(cxl_mock_mem); diff --git a/tools/testing/selftests/riscv/hwprobe/Makefile b/tools/testing/selftests/riscv/hwprobe/Makefile index ebdbb3c22e54..f224b84591fb 100644 --- a/tools/testing/selftests/riscv/hwprobe/Makefile +++ b/tools/testing/selftests/riscv/hwprobe/Makefile @@ -2,9 +2,14 @@ # Copyright (C) 2021 ARM Limited # Originally tools/testing/arm64/abi/Makefile -TEST_GEN_PROGS := hwprobe +CFLAGS += -I$(top_srcdir)/tools/include + +TEST_GEN_PROGS := hwprobe cbo include ../../lib.mk $(OUTPUT)/hwprobe: hwprobe.c sys_hwprobe.S - $(CC) -o$@ $(CFLAGS) $(LDFLAGS) $^ + $(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^ + +$(OUTPUT)/cbo: cbo.c sys_hwprobe.S + $(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^ diff --git a/tools/testing/selftests/riscv/hwprobe/cbo.c b/tools/testing/selftests/riscv/hwprobe/cbo.c new file mode 100644 index 000000000000..50a2cc8aef38 --- /dev/null +++ b/tools/testing/selftests/riscv/hwprobe/cbo.c @@ -0,0 +1,228 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2023 Ventana Micro Systems Inc. + * + * Run with 'taskset -c <cpu-list> cbo' to only execute hwprobe on a + * subset of cpus, as well as only executing the tests on those cpus. + */ +#define _GNU_SOURCE +#include <stdbool.h> +#include <stdint.h> +#include <string.h> +#include <sched.h> +#include <signal.h> +#include <assert.h> +#include <linux/compiler.h> +#include <linux/kernel.h> +#include <asm/ucontext.h> + +#include "hwprobe.h" +#include "../../kselftest.h" + +#define MK_CBO(fn) cpu_to_le32((fn) << 20 | 10 << 15 | 2 << 12 | 0 << 7 | 15) + +static char mem[4096] __aligned(4096) = { [0 ... 4095] = 0xa5 }; + +static bool illegal_insn; + +static void sigill_handler(int sig, siginfo_t *info, void *context) +{ + unsigned long *regs = (unsigned long *)&((ucontext_t *)context)->uc_mcontext; + uint32_t insn = *(uint32_t *)regs[0]; + + assert(insn == MK_CBO(regs[11])); + + illegal_insn = true; + regs[0] += 4; +} + +static void cbo_insn(char *base, int fn) +{ + uint32_t insn = MK_CBO(fn); + + asm volatile( + "mv a0, %0\n" + "li a1, %1\n" + ".4byte %2\n" + : : "r" (base), "i" (fn), "i" (insn) : "a0", "a1", "memory"); +} + +static void cbo_inval(char *base) { cbo_insn(base, 0); } +static void cbo_clean(char *base) { cbo_insn(base, 1); } +static void cbo_flush(char *base) { cbo_insn(base, 2); } +static void cbo_zero(char *base) { cbo_insn(base, 4); } + +static void test_no_zicbom(void *arg) +{ + ksft_print_msg("Testing Zicbom instructions remain privileged\n"); + + illegal_insn = false; + cbo_clean(&mem[0]); + ksft_test_result(illegal_insn, "No cbo.clean\n"); + + illegal_insn = false; + cbo_flush(&mem[0]); + ksft_test_result(illegal_insn, "No cbo.flush\n"); + + illegal_insn = false; + cbo_inval(&mem[0]); + ksft_test_result(illegal_insn, "No cbo.inval\n"); +} + +static void test_no_zicboz(void *arg) +{ + ksft_print_msg("No Zicboz, testing cbo.zero remains privileged\n"); + + illegal_insn = false; + cbo_zero(&mem[0]); + ksft_test_result(illegal_insn, "No cbo.zero\n"); +} + +static bool is_power_of_2(__u64 n) +{ + return n != 0 && (n & (n - 1)) == 0; +} + +static void test_zicboz(void *arg) +{ + struct riscv_hwprobe pair = { + .key = RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE, + }; + cpu_set_t *cpus = (cpu_set_t *)arg; + __u64 block_size; + int i, j; + long rc; + + rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)cpus, 0); + block_size = pair.value; + ksft_test_result(rc == 0 && pair.key == RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE && + is_power_of_2(block_size), "Zicboz block size\n"); + ksft_print_msg("Zicboz block size: %ld\n", block_size); + + illegal_insn = false; + cbo_zero(&mem[block_size]); + ksft_test_result(!illegal_insn, "cbo.zero\n"); + + if (illegal_insn || !is_power_of_2(block_size)) { + ksft_test_result_skip("cbo.zero check\n"); + return; + } + + assert(block_size <= 1024); + + for (i = 0; i < 4096 / block_size; ++i) { + if (i % 2) + cbo_zero(&mem[i * block_size]); + } + + for (i = 0; i < 4096 / block_size; ++i) { + char expected = i % 2 ? 0x0 : 0xa5; + + for (j = 0; j < block_size; ++j) { + if (mem[i * block_size + j] != expected) { + ksft_test_result_fail("cbo.zero check\n"); + ksft_print_msg("cbo.zero check: mem[%d] != 0x%x\n", + i * block_size + j, expected); + return; + } + } + } + + ksft_test_result_pass("cbo.zero check\n"); +} + +static void check_no_zicboz_cpus(cpu_set_t *cpus) +{ + struct riscv_hwprobe pair = { + .key = RISCV_HWPROBE_KEY_IMA_EXT_0, + }; + cpu_set_t one_cpu; + int i = 0, c = 0; + long rc; + + while (i++ < CPU_COUNT(cpus)) { + while (!CPU_ISSET(c, cpus)) + ++c; + + CPU_ZERO(&one_cpu); + CPU_SET(c, &one_cpu); + + rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)&one_cpu, 0); + assert(rc == 0 && pair.key == RISCV_HWPROBE_KEY_IMA_EXT_0); + + if (pair.value & RISCV_HWPROBE_EXT_ZICBOZ) + ksft_exit_fail_msg("Zicboz is only present on a subset of harts.\n" + "Use taskset to select a set of harts where Zicboz\n" + "presence (present or not) is consistent for each hart\n"); + ++c; + } +} + +enum { + TEST_ZICBOZ, + TEST_NO_ZICBOZ, + TEST_NO_ZICBOM, +}; + +static struct test_info { + bool enabled; + unsigned int nr_tests; + void (*test_fn)(void *arg); +} tests[] = { + [TEST_ZICBOZ] = { .nr_tests = 3, test_zicboz }, + [TEST_NO_ZICBOZ] = { .nr_tests = 1, test_no_zicboz }, + [TEST_NO_ZICBOM] = { .nr_tests = 3, test_no_zicbom }, +}; + +int main(int argc, char **argv) +{ + struct sigaction act = { + .sa_sigaction = &sigill_handler, + .sa_flags = SA_SIGINFO, + }; + struct riscv_hwprobe pair; + unsigned int plan = 0; + cpu_set_t cpus; + long rc; + int i; + + if (argc > 1 && !strcmp(argv[1], "--sigill")) { + rc = sigaction(SIGILL, &act, NULL); + assert(rc == 0); + tests[TEST_NO_ZICBOZ].enabled = true; + tests[TEST_NO_ZICBOM].enabled = true; + } + + rc = sched_getaffinity(0, sizeof(cpu_set_t), &cpus); + assert(rc == 0); + + ksft_print_header(); + + pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0; + rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)&cpus, 0); + if (rc < 0) + ksft_exit_fail_msg("hwprobe() failed with %d\n", rc); + assert(rc == 0 && pair.key == RISCV_HWPROBE_KEY_IMA_EXT_0); + + if (pair.value & RISCV_HWPROBE_EXT_ZICBOZ) { + tests[TEST_ZICBOZ].enabled = true; + tests[TEST_NO_ZICBOZ].enabled = false; + } else { + check_no_zicboz_cpus(&cpus); + } + + for (i = 0; i < ARRAY_SIZE(tests); ++i) + plan += tests[i].enabled ? tests[i].nr_tests : 0; + + if (plan == 0) + ksft_print_msg("No tests enabled.\n"); + else + ksft_set_plan(plan); + + for (i = 0; i < ARRAY_SIZE(tests); ++i) { + if (tests[i].enabled) + tests[i].test_fn(&cpus); + } + + ksft_finished(); +} diff --git a/tools/testing/selftests/riscv/hwprobe/hwprobe.c b/tools/testing/selftests/riscv/hwprobe/hwprobe.c index 09f290a67420..c474891df307 100644 --- a/tools/testing/selftests/riscv/hwprobe/hwprobe.c +++ b/tools/testing/selftests/riscv/hwprobe/hwprobe.c @@ -1,14 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only -#include <stddef.h> -#include <asm/hwprobe.h> - -/* - * Rather than relying on having a new enough libc to define this, just do it - * ourselves. This way we don't need to be coupled to a new-enough libc to - * contain the call. - */ -long riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count, - size_t cpu_count, unsigned long *cpus, unsigned int flags); +#include "hwprobe.h" +#include "../../kselftest.h" int main(int argc, char **argv) { @@ -16,6 +8,9 @@ int main(int argc, char **argv) unsigned long cpus; long out; + ksft_print_header(); + ksft_set_plan(5); + /* Fake the CPU_SET ops. */ cpus = -1; @@ -25,13 +20,16 @@ int main(int argc, char **argv) */ for (long i = 0; i < 8; i++) pairs[i].key = i; + out = riscv_hwprobe(pairs, 8, 1, &cpus, 0); if (out != 0) - return -1; + ksft_exit_fail_msg("hwprobe() failed with %ld\n", out); + for (long i = 0; i < 4; ++i) { /* Fail if the kernel claims not to recognize a base key. */ if ((i < 4) && (pairs[i].key != i)) - return -2; + ksft_exit_fail_msg("Failed to recognize base key: key != i, " + "key=%ld, i=%ld\n", pairs[i].key, i); if (pairs[i].key != RISCV_HWPROBE_KEY_BASE_BEHAVIOR) continue; @@ -39,52 +37,30 @@ int main(int argc, char **argv) if (pairs[i].value & RISCV_HWPROBE_BASE_BEHAVIOR_IMA) continue; - return -3; + ksft_exit_fail_msg("Unexpected pair: (%ld, %ld)\n", pairs[i].key, pairs[i].value); } - /* - * This should also work with a NULL CPU set, but should not work - * with an improperly supplied CPU set. - */ out = riscv_hwprobe(pairs, 8, 0, 0, 0); - if (out != 0) - return -4; + ksft_test_result(out == 0, "NULL CPU set\n"); out = riscv_hwprobe(pairs, 8, 0, &cpus, 0); - if (out == 0) - return -5; + ksft_test_result(out != 0, "Bad CPU set\n"); out = riscv_hwprobe(pairs, 8, 1, 0, 0); - if (out == 0) - return -6; + ksft_test_result(out != 0, "NULL CPU set with non-zero count\n"); - /* - * Check that keys work by providing one that we know exists, and - * checking to make sure the resultig pair is what we asked for. - */ pairs[0].key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR; out = riscv_hwprobe(pairs, 1, 1, &cpus, 0); - if (out != 0) - return -7; - if (pairs[0].key != RISCV_HWPROBE_KEY_BASE_BEHAVIOR) - return -8; + ksft_test_result(out == 0 && pairs[0].key == RISCV_HWPROBE_KEY_BASE_BEHAVIOR, + "Existing key is maintained\n"); - /* - * Check that an unknown key gets overwritten with -1, - * but doesn't block elements after it. - */ pairs[0].key = 0x5555; pairs[1].key = 1; pairs[1].value = 0xAAAA; out = riscv_hwprobe(pairs, 2, 0, 0, 0); - if (out != 0) - return -9; - - if (pairs[0].key != -1) - return -10; - - if ((pairs[1].key != 1) || (pairs[1].value == 0xAAAA)) - return -11; + ksft_test_result(out == 0 && pairs[0].key == -1 && + pairs[1].key == 1 && pairs[1].value != 0xAAAA, + "Unknown key overwritten with -1 and doesn't block other elements\n"); - return 0; + ksft_finished(); } diff --git a/tools/testing/selftests/riscv/hwprobe/hwprobe.h b/tools/testing/selftests/riscv/hwprobe/hwprobe.h new file mode 100644 index 000000000000..721b0ce73a56 --- /dev/null +++ b/tools/testing/selftests/riscv/hwprobe/hwprobe.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_RISCV_HWPROBE_H +#define SELFTEST_RISCV_HWPROBE_H +#include <stddef.h> +#include <asm/hwprobe.h> + +/* + * Rather than relying on having a new enough libc to define this, just do it + * ourselves. This way we don't need to be coupled to a new-enough libc to + * contain the call. + */ +long riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count, + size_t cpu_count, unsigned long *cpus, unsigned int flags); + +#endif |