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charset="utf-8" Add utility macros for accessing register or register bit fields in tests, e.g.: REG32_WRITE(FLEXCOMM, PSELID, persel); g_assert(REG32_READ_FIELD(FLEXCOMM, PSELID, PERSEL) =3D=3D persel); Signed-off-by: Octavian Purdila --- tests/qtest/reg-utils.h | 70 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 tests/qtest/reg-utils.h diff --git a/tests/qtest/reg-utils.h b/tests/qtest/reg-utils.h new file mode 100644 index 0000000000..e09aaf3333 --- /dev/null +++ b/tests/qtest/reg-utils.h @@ -0,0 +1,70 @@ +/* + * Register access utilities for device tests. + * + * Copyright (C) 2024 Google LLC + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ +#ifndef _REG_UTILS_H +#define _REG_UTILS_H + +#include "libqtest-single.h" +#include "hw/registerfields.h" + +#ifdef DEBUG_REG +#define debug(fmt, args...) fprintf(stderr, fmt, ## args) +#else +#define debug(fmt, args...) +#endif + +#define _REG_OFF(mod, reg) (A_##mod##_##reg) + +#define REG32_READ(mod, reg) \ + ({ \ + uint32_t value; \ + value =3D readl(mod##_BASE + _REG_OFF(mod, reg)); \ + debug("[%s] -> %08x\n", #reg, value); \ + value; \ + }) + +#define REG32_WRITE(mod, reg, value) \ + do { \ + debug("[%s] <- %08x\n", #reg, value); \ + writel(mod##_BASE + _REG_OFF(mod, reg), value); \ + } while (0) + +#define REG_FIELD_VAL(v, mod, reg, field) \ + FIELD_EX32(v, mod##_##reg, field) \ + +#define REG32_READ_FIELD(mod, reg, field) \ + REG_FIELD_VAL(REG32_READ(mod, reg), mod, reg, field) + +#define REG32_WRITE_FIELD(mod, reg, field, val) \ + do { \ + uint32_t _tmp =3D REG32_READ(mod, reg); \ + _tmp =3D FIELD_DP32(_tmp, mod##_##reg, field, val); \ + REG32_WRITE(mod, reg, _tmp); \ + } while (0) + +#define REG32_WRITE_FIELD_NOUPDATE(mod, reg, field, val) \ + do { \ + uint32_t _tmp =3D FIELD_DP32(0, mod##_##reg, field, val); \ + REG32_WRITE(mod, reg, _tmp); \ + } while (0) + +#define WAIT_REG32_FIELD(ns, mod, reg, field, val) \ + do { \ + clock_step(ns); \ + g_assert_cmpuint(REG32_READ_FIELD(mod, reg, field), =3D=3D, val); = \ + } while (0) + +#define REG32_READ_FAIL(mod, reg) \ + readl_fail(mod##_BASE + _REG_OFF(mod, reg)) + +#define REG32_WRITE_FAIL(mod, reg, value) \ + writel_fail(mod##_BASE + _REG_OFF(mod, reg), value) + +#endif /* _REG_UTILS_H */ --=20 2.46.0.295.g3b9ea8a38a-goog