From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 21DB6C433F5 for ; Tue, 26 Apr 2022 19:29:44 +0000 (UTC) Received: from localhost ([::1]:46048 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1njQsZ-0003Jx-9t for qemu-devel@archiver.kernel.org; Tue, 26 Apr 2022 15:29:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45820) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njPqD-0002J9-2p for qemu-devel@nongnu.org; Tue, 26 Apr 2022 14:23:13 -0400 Received: from mail-pj1-x1034.google.com ([2607:f8b0:4864:20::1034]:42689) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1njPqA-0005aA-Ty for qemu-devel@nongnu.org; Tue, 26 Apr 2022 14:23:12 -0400 Received: by mail-pj1-x1034.google.com with SMTP id l11-20020a17090a49cb00b001d923a9ca99so3287982pjm.1 for ; Tue, 26 Apr 2022 11:23:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=GHtsbCUzbAiXNRerrkvBm4mS8/nCv8DYGfSujqy0xTQ=; b=LlxEP5Ges+CY+DlfOsB3aMJa9DkGpzx8dEZSJIusxgJrOAD6XRueKJDvaCz6VBWkgi uvFhlc20AYA4ZUHE6LD4xuMV8pVWFHRK84fVwS8Piy1POlXTLZQXz9FjCHsrfadQE1OI arY2g95GYIF/kPmnEJxP5QAsxTsA9BR/tXTABn/+8jmBe79hYCJRfi5K0opPx7UiPr42 INod69EFcSJ2R6VQvlTl26iYM9THwILSjTA037Z6D1K/pwfE23Gpj99mezPUR0aZGelh Gqqy1U2eElr7TyrCmKaPxLHTauPzlkE2jgrrOfT5/eD/SMAIslRI0OIc8MR6MsWl0F3j ztOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=GHtsbCUzbAiXNRerrkvBm4mS8/nCv8DYGfSujqy0xTQ=; b=YD25n0bbB9TyfbKGVSvhFWDUk+CAKmvJQjHlkhMwJ6LJBQSq7JjgGl51+3hhxKv1SN AYXnE0t8QebjPw5TPe2o/WvaZJ/yDg4jo/Ixj3chEM/Of6i6qvZnt5Lb/FGZUDqBr8sB T5xCsDy+E7xOHfUeXruEggmWuNa3Xwiv20RfapUCz+T75ukeoPzWEqQz+C+FxCEaQm4O /lVd4PkHBe/6ZOk9cPas9Hw8SItLEmBL0/JAFDPYngH1xGCbfL5ZAhvDGE42rJHFRKUS HRp+xXEpddU7YA1JOQ5aHIEBo0kwN6j2SwFKUfVS+wxRap+kkgKmJzq+Aj98lyK+qiiE oJkQ== X-Gm-Message-State: AOAM530f3JceOymorCdtLEFzaJm9ud9iIPFWUrLW+DXRRVDjL3jLYG0c KPPgtfK7QQTfS3AocPxhWp405DIj6RqPiQ== X-Google-Smtp-Source: ABdhPJzgEsdT00gWNqPMbwM3S9gsk8TXREmY9thHd6TN/X9sdmMxnoLJ73oEJr6WBIoii5Pwl8lAew== X-Received: by 2002:a17:903:248:b0:155:ecb7:dfaf with SMTP id j8-20020a170903024800b00155ecb7dfafmr24819435plh.84.1650997389589; Tue, 26 Apr 2022 11:23:09 -0700 (PDT) Received: from stoup.. (174-21-142-130.tukw.qwest.net. [174.21.142.130]) by smtp.gmail.com with ESMTPSA id k187-20020a636fc4000000b003983a01b896sm13585053pgc.90.2022.04.26.11.23.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Apr 2022 11:23:09 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 67/68] tests/tcg/nios2: Add semihosting multiarch tests Date: Tue, 26 Apr 2022 11:19:06 -0700 Message-Id: <20220426181907.103691-68-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220426181907.103691-1-richard.henderson@linaro.org> References: <20220426181907.103691-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1034.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add runtime supporting the nios2-semi.c interface. Execute the hello and memory multiarch tests. Cc: Alex Bennée Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-Id: <20220421151735.31996-64-richard.henderson@linaro.org> --- tests/tcg/nios2/semicall.h | 28 +++ tests/tcg/nios2/10m50-ghrd.ld | 66 +++++++ tests/tcg/nios2/Makefile.softmmu-target | 32 ++++ tests/tcg/nios2/boot.S | 218 ++++++++++++++++++++++++ tests/tcg/nios2/intr.S | 31 ++++ 5 files changed, 375 insertions(+) create mode 100644 tests/tcg/nios2/semicall.h create mode 100644 tests/tcg/nios2/10m50-ghrd.ld create mode 100644 tests/tcg/nios2/Makefile.softmmu-target create mode 100644 tests/tcg/nios2/boot.S create mode 100644 tests/tcg/nios2/intr.S diff --git a/tests/tcg/nios2/semicall.h b/tests/tcg/nios2/semicall.h new file mode 100644 index 0000000000..6ad4978099 --- /dev/null +++ b/tests/tcg/nios2/semicall.h @@ -0,0 +1,28 @@ +/* + * Nios2 semihosting interface. + * + * Copyright Linaro Ltd 2022 + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef SEMICALL_H +#define SEMICALL_H + +#define HOSTED_EXIT 0 +#define HOSTED_INIT_SIM 1 +#define HOSTED_OPEN 2 +#define HOSTED_CLOSE 3 +#define HOSTED_READ 4 +#define HOSTED_WRITE 5 +#define HOSTED_LSEEK 6 +#define HOSTED_RENAME 7 +#define HOSTED_UNLINK 8 +#define HOSTED_STAT 9 +#define HOSTED_FSTAT 10 +#define HOSTED_GETTIMEOFDAY 11 +#define HOSTED_ISATTY 12 +#define HOSTED_SYSTEM 13 + +#define semihosting_call break 1 + +#endif /* SEMICALL_H */ diff --git a/tests/tcg/nios2/10m50-ghrd.ld b/tests/tcg/nios2/10m50-ghrd.ld new file mode 100644 index 0000000000..7db0d59ad7 --- /dev/null +++ b/tests/tcg/nios2/10m50-ghrd.ld @@ -0,0 +1,66 @@ +/* + * Link script for the Nios2 10m50-ghrd board. + * + * Copyright Linaro Ltd 2022 + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +MEMORY +{ + tpf (rx) : ORIGIN = 0xc0000000, LENGTH = 1K + ram (rwx) : ORIGIN = 0xc8000000, LENGTH = 128M +} + +PHDRS +{ + RAM PT_LOAD; +} + +ENTRY(_start) +EXTERN(_start) +EXTERN(_interrupt) +EXTERN(_fast_tlb_miss) + +SECTIONS +{ + /* Begin at the (hardcoded) _interrupt entry point. */ + .text 0xc8000120 : { + *(.text.intr) + *(.text .text.* .gnu.linkonce.t.*) + } >ram :RAM + + .rodata : ALIGN(4) { + *(.rodata .rodata.* .gnu.linkonce.r.*) + } > ram :RAM + + .eh_frame_hdr : ALIGN (4) { + KEEP (*(.eh_frame_hdr)) + *(.eh_frame_entry .eh_frame_entry.*) + } >ram :RAM + .eh_frame : ALIGN (4) { + KEEP (*(.eh_frame)) *(.eh_frame.*) + } >ram :RAM + + .data : ALIGN(4) { + *(.shdata) + *(.data .data.* .gnu.linkonce.d.*) + . = ALIGN(4); + _gp = ABSOLUTE(. + 0x8000); + *(.got.plt) *(.got) + *(.lit8) + *(.lit4) + *(.sdata .sdata.* .gnu.linkonce.s.*) + } >ram :RAM + + .bss : ALIGN(4) { + __bss_start = ABSOLUTE(.); + *(.sbss .sbss.* .gnu.linkonce.sb.*) + *(.scommon) + *(.bss .bss.* .gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(4); + __bss_end = ABSOLUTE(.); + } >ram :RAM + + __stack = ORIGIN(ram) + LENGTH(ram); +} diff --git a/tests/tcg/nios2/Makefile.softmmu-target b/tests/tcg/nios2/Makefile.softmmu-target new file mode 100644 index 0000000000..cea27472a6 --- /dev/null +++ b/tests/tcg/nios2/Makefile.softmmu-target @@ -0,0 +1,32 @@ +# +# Nios2 system tests +# +# Copyright Linaro Ltd 2022 +# SPDX-License-Identifier: GPL-2.0-or-later +# + +NIOS2_SYSTEM_SRC = $(SRC_PATH)/tests/tcg/nios2 +VPATH += $(NIOS2_SYSTEM_SRC) + +# These objects provide the basic boot code and helper functions for all tests +CRT_OBJS = boot.o intr.o $(MINILIB_OBJS) +LINK_SCRIPT = $(NIOS2_SYSTEM_SRC)/10m50-ghrd.ld + +CFLAGS += -nostdlib -g -O0 $(MINILIB_INC) +LDFLAGS += -Wl,-T$(LINK_SCRIPT) -static -nostdlib $(CRT_OBJS) -lgcc + +%.o: %.S + $(call quiet-command, $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -x assembler-with-cpp -c $< -o $@, AS, $@) + +%.o: %.c + $(call quiet-command, $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c $< -o $@, CC, $@) + +# Build and link the tests +%: %.o $(LINK_SCRIPT) $(CRT_OBJS) + $(call quiet-command, $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $< -o $@ $(LDFLAGS), LD, $@) + +# FIXME: nios2 semihosting writes to stdout, not a chardev +QEMU_OPTS = -M 10m50-ghrd,vic=on -semihosting >$@.out -kernel + +memory: CFLAGS+=-DCHECK_UNALIGNED=0 +TESTS += $(MULTIARCH_TESTS) diff --git a/tests/tcg/nios2/boot.S b/tests/tcg/nios2/boot.S new file mode 100644 index 0000000000..f6771cbc81 --- /dev/null +++ b/tests/tcg/nios2/boot.S @@ -0,0 +1,218 @@ +/* + * Minimal Nios2 system boot code. + * + * Copyright Linaro Ltd 2022 + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "semicall.h" + + .text + .set noat + +_start: + /* Linker script defines stack at end of ram. */ + movia sp, __stack + + /* Install trampoline to _fast_tlb_miss at hardcoded vector. */ + movia r4, 0xc0000100 + movia r5, _ftm_tramp + movi r6, .L__ftm_end - _ftm_tramp + call memcpy + + /* Zero the bss to satisfy C. */ + movia r4, __bss_start + movia r6, __bss_end + sub r6, r6, r4 + movi r5, 0 + call memset + + /* Test! */ + call main + + /* Exit with main's return value. */ + movi r4, HOSTED_EXIT + mov r5, r2 + semihosting_call + + .globl _start + .type _start, @function + .size _start, . - _start + +_ftm_tramp: + movia et, _fast_tlb_miss + jmp et +.L__ftm_end: + + .type _ftm_tramp, @function + .size _ftm_tramp, . - _ftm_tramp + +#define dst r4 +#define src r5 +#define len r6 + +memcpy: + /* Store return value right away, per API */ + mov r2, dst + + /* Check for both dst and src aligned. */ + or at, dst, src + andi at, at, 3 + bne at, zero, .L_mc_test1 + + /* Copy blocks of 8. */ + + movi at, 8 + bltu len, at, .L_mc_test4 + +.L_mc_loop8: + ldw r8, 0(src) + ldw r9, 4(src) + addi src, src, 8 + addi dst, dst, 8 + subi len, len, 8 + stw r8, -8(dst) + stw r9, -4(dst) + bgeu len, at, .L_mc_loop8 + + /* Copy final aligned block of 4. */ + +.L_mc_test4: + movi at, 4 + bltu len, at, .L_mc_test1 + + ldw r8, 0(src) + addi src, src, 4 + addi dst, dst, 4 + subi len, len, 4 + stw r8, -4(dst) + + /* Copy single bytes to finish. */ + +.L_mc_test1: + beq len, zero, .L_mc_done + +.L_mc_loop1: + ldb r8, 0(src) + addi src, src, 1 + addi dst, dst, 1 + subi len, len, 1 + stb r8, -1(dst) + bne len, zero, .L_mc_loop1 + +.L_mc_done: + ret + +#undef dst +#undef src +#undef len + + .global memcpy + .type memcpy, @function + .size memcpy, . - memcpy + +#define dst r4 +#define val r5 +#define len r6 + +memset: + /* Store return value right away, per API */ + mov r2, dst + + /* Check for small blocks; fall back to bytewise. */ + movi r3, 8 + bltu len, r3, .L_ms_test1 + + /* Replicate the byte across the word. */ + andi val, val, 0xff + slli at, val, 8 + or val, val, at + slli at, val, 16 + or val, val, at + + /* Check for destination alignment; realign if needed. */ + andi at, dst, 3 + bne at, zero, .L_ms_align + + /* Set blocks of 8. */ + +.L_ms_loop8: + stw val, 0(dst) + stw val, 4(dst) + addi dst, dst, 8 + subi len, len, 8 + bgeu len, r3, .L_ms_loop8 + + /* Set final aligned block of 4. */ + +.L_ms_test4: + movi at, 4 + bltu len, at, .L_ms_test1 + + stw r8, 0(dst) + addi dst, dst, 4 + subi len, len, 4 + stw r8, -4(dst) + + /* Set single bytes to finish. */ + +.L_ms_test1: + beq len, zero, .L_ms_done + +.L_ms_loop1: + stb r8, 0(dst) + addi dst, dst, 1 + subi len, len, 1 + bne len, zero, .L_ms_loop1 + +.L_ms_done: + ret + + /* Realign for a large block, len >= 8. */ +.L_ms_align: + andi at, dst, 1 + beq at, zero, 2f + + stb val, 0(dst) + addi dst, dst, 1 + subi len, len, 1 + +2: andi at, dst, 2 + beq at, zero, 4f + + sth val, 0(dst) + addi dst, dst, 2 + subi len, len, 2 + +4: bgeu len, r3, .L_ms_loop8 + br .L_ms_test4 + +#undef dst +#undef val +#undef len + + .global memset + .type memset, @function + .size memset, . - memset + +/* + * void __sys_outc(char c); + */ +__sys_outc: + subi sp, sp, 16 + stb r4, 0(sp) /* buffer[0] = c */ + movi at, 1 + stw at, 4(sp) /* STDOUT_FILENO */ + stw sp, 8(sp) /* buffer */ + stw at, 12(sp) /* len */ + + movi r4, HOSTED_WRITE + addi r5, sp, 4 + semihosting_call + + addi sp, sp, 16 + ret + + .global __sys_outc + .type __sys_outc, @function + .size __sys_outc, . - __sys_outc diff --git a/tests/tcg/nios2/intr.S b/tests/tcg/nios2/intr.S new file mode 100644 index 0000000000..c1730692ba --- /dev/null +++ b/tests/tcg/nios2/intr.S @@ -0,0 +1,31 @@ +/* + * Minimal Nios2 system boot code -- exit on interrupt. + * + * Copyright Linaro Ltd 2022 + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "semicall.h" + + .section .text.intr, "ax" + .global _interrupt + .type _interrupt, @function + +_interrupt: + rdctl r5, exception /* extract exception.CAUSE */ + srli r5, r5, 2 + movi r4, HOSTED_EXIT + semihosting_call + + .size _interrupt, . - _interrupt + + .text + .global _fast_tlb_miss + .type _fast_tlb_miss, @function + +_fast_tlb_miss: + movi r5, 32 + movi r4, HOSTED_EXIT + semihosting_call + + .size _fast_tlb_miss, . - _fast_tlb_miss -- 2.34.1