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![Fabien Dessenne](/assets/img/avatar_default.png)
The current implementation supports only binary file load. Add helpers to support ELF32 format (sanity check, and load). Note that since an ELF32 image is built for the remote processor, the load function uses the device_to_virt ops to translate the addresses. Implement a basic translation for sandbox_testproc. Add related tests. Test result: => ut dm remoteproc_elf Test: dm_test_remoteproc_elf: remoteproc.c Test: dm_test_remoteproc_elf: remoteproc.c (flat tree) Failures: 0 Signed-off-by: Loic Pallardy <loic.pallardy@st.com> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
190 lines
5.1 KiB
C
190 lines
5.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015
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* Texas Instruments Incorporated - http://www.ti.com/
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*/
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#include <common.h>
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#include <dm.h>
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#include <elf.h>
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#include <errno.h>
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#include <remoteproc.h>
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#include <asm/io.h>
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#include <dm/test.h>
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#include <test/ut.h>
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/**
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* dm_test_remoteproc_base() - test the operations after initializations
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* @uts: unit test state
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*
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* Return: 0 if test passed, else error
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*/
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static int dm_test_remoteproc_base(struct unit_test_state *uts)
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{
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if (!rproc_is_initialized())
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ut_assertok(rproc_init());
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/* Ensure we are initialized */
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ut_asserteq(true, rproc_is_initialized());
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/* platform data device 1 */
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ut_assertok(rproc_stop(0));
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ut_assertok(rproc_reset(0));
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/* -> invalid attempt tests */
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ut_asserteq(-EINVAL, rproc_start(0));
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ut_asserteq(-EINVAL, rproc_ping(0));
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/* Valid tests */
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ut_assertok(rproc_load(0, 1, 0));
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ut_assertok(rproc_start(0));
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ut_assertok(rproc_is_running(0));
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ut_assertok(rproc_ping(0));
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ut_assertok(rproc_reset(0));
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ut_assertok(rproc_stop(0));
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/* dt device device 1 */
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ut_assertok(rproc_stop(1));
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ut_assertok(rproc_reset(1));
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ut_assertok(rproc_load(1, 1, 0));
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ut_assertok(rproc_start(1));
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ut_assertok(rproc_is_running(1));
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ut_assertok(rproc_ping(1));
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ut_assertok(rproc_reset(1));
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ut_assertok(rproc_stop(1));
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/* dt device device 2 */
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ut_assertok(rproc_stop(0));
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ut_assertok(rproc_reset(0));
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/* -> invalid attempt tests */
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ut_asserteq(-EINVAL, rproc_start(0));
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ut_asserteq(-EINVAL, rproc_ping(0));
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/* Valid tests */
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ut_assertok(rproc_load(2, 1, 0));
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ut_assertok(rproc_start(2));
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ut_assertok(rproc_is_running(2));
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ut_assertok(rproc_ping(2));
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ut_assertok(rproc_reset(2));
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ut_assertok(rproc_stop(2));
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return 0;
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}
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DM_TEST(dm_test_remoteproc_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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#define DEVICE_TO_PHYSICAL_OFFSET 0x1000
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/**
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* dm_test_remoteproc_elf() - test the ELF operations
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* @uts: unit test state
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*
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* Return: 0 if test passed, else error
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*/
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static int dm_test_remoteproc_elf(struct unit_test_state *uts)
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{
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u8 valid_elf32[] = {
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/* @0x00 - ELF HEADER - */
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/* ELF magic */
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0x7f, 0x45, 0x4c, 0x46,
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/* 32 Bits */
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0x01,
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/* Endianness */
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#ifdef __LITTLE_ENDIAN
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0x01,
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#else
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0x02,
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#endif
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/* Version */
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0x01,
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/* Padding */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* Type : executable */
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0x02, 0x00,
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/* Machine: ARM */
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0x28, 0x00,
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/* Version */
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0x01, 0x00, 0x00, 0x00,
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/* Entry */
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0x00, 0x00, 0x00, 0x08,
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/* phoff (program header offset @ 0x40)*/
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0x40, 0x00, 0x00, 0x00,
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/* shoff (section header offset : none) */
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0x00, 0x00, 0x00, 0x00,
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/* flags */
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0x00, 0x00, 0x00, 0x00,
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/* ehsize (elf header size = 0x34) */
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0x34, 0x00,
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/* phentsize (program header size = 0x20) */
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0x20, 0x00,
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/* phnum (program header number : 1) */
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0x01, 0x00,
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/* shentsize (section heade size : none) */
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0x00, 0x00,
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/* shnum (section header number: none) */
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0x00, 0x00,
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/* shstrndx (section header name section index: none) */
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0x00, 0x00,
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/* padding */
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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/* @0x40 - PROGRAM HEADER TABLE - */
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/* type : PT_LOAD */
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0x01, 0x00, 0x00, 0x00,
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/* offset */
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0x00, 0x00, 0x00, 0x00,
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/* vaddr */
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0x00, 0x00, 0x00, 0x00,
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/* paddr : physical address */
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0x00, 0x00, 0x00, 0x00,
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/* filesz : 0x20 bytes (program header size) */
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0x20, 0x00, 0x00, 0x00,
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/* memsz = filesz */
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0x20, 0x00, 0x00, 0x00,
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/* flags : readable and exectuable */
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0x05, 0x00, 0x00, 0x00,
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/* padding */
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0x00, 0x00, 0x00, 0x00,
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};
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unsigned int size = ARRAY_SIZE(valid_elf32);
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struct udevice *dev;
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phys_addr_t loaded_firmware_paddr;
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void *loaded_firmware;
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u32 loaded_firmware_size;
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Elf32_Ehdr *ehdr = (Elf32_Ehdr *)valid_elf32;
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Elf32_Phdr *phdr = (Elf32_Phdr *)(valid_elf32 + ehdr->e_phoff);
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ut_assertok(uclass_get_device(UCLASS_REMOTEPROC, 0, &dev));
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/*
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* In its Program Header Table, let the firmware specifies to be loaded
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* at SDRAM_BASE *device* address (p_paddr field).
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* Its size is defined by the p_filesz field.
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*/
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phdr->p_paddr = CONFIG_SYS_SDRAM_BASE;
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loaded_firmware_size = phdr->p_filesz;
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/*
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* This *device* address is converted to a *physical* address by the
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* device_to_virt() operation of sandbox_test_rproc which returns
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* DeviceAddress + DEVICE_TO_PHYSICAL_OFFSET.
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* This is where we expect to get the firmware loaded.
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*/
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loaded_firmware_paddr = phdr->p_paddr + DEVICE_TO_PHYSICAL_OFFSET;
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loaded_firmware = map_physmem(loaded_firmware_paddr,
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loaded_firmware_size, MAP_NOCACHE);
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ut_assertnonnull(loaded_firmware);
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memset(loaded_firmware, 0, loaded_firmware_size);
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/* Verify valid ELF format */
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ut_assertok(rproc_elf32_sanity_check((ulong)valid_elf32, size));
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/* Load firmware in loaded_firmware, and verify it */
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ut_assertok(rproc_elf32_load_image(dev, (unsigned long)valid_elf32));
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ut_assertok(memcmp(loaded_firmware, valid_elf32, loaded_firmware_size));
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unmap_physmem(loaded_firmware, MAP_NOCACHE);
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/* Invalid ELF Magic */
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valid_elf32[0] = 0;
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ut_asserteq(-EPROTONOSUPPORT,
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rproc_elf32_sanity_check((ulong)valid_elf32, size));
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return 0;
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}
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DM_TEST(dm_test_remoteproc_elf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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