GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/cmd/x86/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += mtrr.o
+obj-$(CONFIG_CMD_EXCEPTION) += exception.o
+obj-$(CONFIG_USE_HOB) += hob.o
+obj-$(CONFIG_HAVE_FSP) += fsp.o

source/bootloader/u-boot-2020.01/cmd/x86/exception.c

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * The 'exception' command can be used for testing exception handling.
+ *
+ * Copyright (c) 2018, Heinrich Schuchardt <xypron.glpk@gmx.de>
+ */
+
+#include <common.h>
+#include <command.h>
+
+static int do_undefined(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[])
+{
+	asm volatile (".word 0xffff\n");
+	return CMD_RET_FAILURE;
+}
+
+static cmd_tbl_t cmd_sub[] = {
+	U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined,
+			 "", ""),
+};
+
+static char exception_help_text[] =
+	"<ex>\n"
+	"  The following exceptions are available:\n"
+	"  undefined  - undefined instruction\n"
+	;
+
+#include <exception.h>

source/bootloader/u-boot-2020.01/cmd/x86/fsp.c

@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014-2015, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/fsp1/fsp_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int do_hdr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	struct fsp_header *hdr = fsp_find_header();
+	u32 img_addr = hdr->img_base;
+	char *sign = (char *)&hdr->sign;
+	int i;
+
+	printf("FSP    : binary 0x%08x, header 0x%08x\n",
+	       CONFIG_FSP_ADDR, (int)hdr);
+	printf("Header : sign ");
+	for (i = 0; i < sizeof(hdr->sign); i++)
+		printf("%c", *sign++);
+	printf(", size %d, rev %d\n", hdr->hdr_len, hdr->hdr_rev);
+	printf("Image  : rev ");
+	if (hdr->hdr_rev == FSP_HEADER_REVISION_1) {
+		printf("%d.%d",
+		       (hdr->img_rev >> 8) & 0xff, hdr->img_rev & 0xff);
+	} else {
+		printf("%d.%d.%d.%d",
+		       (hdr->img_rev >> 24) & 0xff, (hdr->img_rev >> 16) & 0xff,
+		       (hdr->img_rev >> 8) & 0xff, hdr->img_rev & 0xff);
+	}
+	printf(", id ");
+	for (i = 0; i < ARRAY_SIZE(hdr->img_id); i++)
+		printf("%c", hdr->img_id[i]);
+	printf(", addr 0x%08x, size %d\n", img_addr, hdr->img_size);
+	if (hdr->hdr_rev == FSP_HEADER_REVISION_2) {
+		printf("GFX    :%ssupported\n",
+		       hdr->img_attr & FSP_ATTR_GRAPHICS_SUPPORT ? " " : " un");
+	}
+	printf("VPD    : addr 0x%08x, size %d\n",
+	       hdr->cfg_region_off + img_addr, hdr->cfg_region_size);
+	printf("\nNumber of APIs Supported : %d\n", hdr->api_num);
+	printf("\tTempRamInit : 0x%08x\n", hdr->fsp_tempram_init + img_addr);
+	printf("\tFspInit     : 0x%08x\n", hdr->fsp_init + img_addr);
+	printf("\tFspNotify   : 0x%08x\n", hdr->fsp_notify + img_addr);
+	if (hdr->hdr_rev == FSP_HEADER_REVISION_2) {
+		printf("\tMemoryInit  : 0x%08x\n",
+		       hdr->fsp_mem_init + img_addr);
+		printf("\tTempRamExit : 0x%08x\n",
+		       hdr->fsp_tempram_exit + img_addr);
+		printf("\tSiliconInit : 0x%08x\n",
+		       hdr->fsp_silicon_init + img_addr);
+	}
+
+	return 0;
+}
+
+static cmd_tbl_t fsp_commands[] = {
+	U_BOOT_CMD_MKENT(hdr, 0, 1, do_hdr, "", ""),
+};
+
+static int do_fsp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	cmd_tbl_t *fsp_cmd;
+	int ret;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+	fsp_cmd = find_cmd_tbl(argv[1], fsp_commands, ARRAY_SIZE(fsp_commands));
+	argc -= 2;
+	argv += 2;
+	if (!fsp_cmd || argc > fsp_cmd->maxargs)
+		return CMD_RET_USAGE;
+
+	ret = fsp_cmd->cmd(fsp_cmd, flag, argc, argv);
+
+	return cmd_process_error(fsp_cmd, ret);
+}
+
+U_BOOT_CMD(
+	fsp,	2,	1,	do_fsp,
+	"Show Intel Firmware Support Package (FSP) related information",
+	"hdr - Print FSP header information"
+);

source/bootloader/u-boot-2020.01/cmd/x86/hob.c

@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014-2015, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <efi.h>
+#include <asm/hob.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static char *hob_type[] = {
+	"reserved",
+	"Hand-off",
+	"Mem Alloc",
+	"Res Desc",
+	"GUID Ext",
+	"FV",
+	"CPU",
+	"Mem Pool",
+	"reserved",
+	"FV2",
+	"Load PEIM",
+	"Capsule",
+};
+
+static int do_hob(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	const struct hob_header *hdr;
+	uint type;
+	char *desc;
+	int i = 0;
+	efi_guid_t *guid;
+	char uuid[UUID_STR_LEN + 1];
+
+	hdr = gd->arch.hob_list;
+
+	printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
+
+	printf("#  | Address  | Type      | Len  | ");
+	printf("%36s\n", "GUID");
+	printf("---|----------|-----------|------|-");
+	printf("------------------------------------\n");
+	while (!end_of_hob(hdr)) {
+		printf("%02x | %08x | ", i, (unsigned int)hdr);
+		type = hdr->type;
+		if (type == HOB_TYPE_UNUSED)
+			desc = "*Unused*";
+		else if (type == HOB_TYPE_EOH)
+			desc = "*EOH*";
+		else if (type >= 0 && type <= ARRAY_SIZE(hob_type))
+			desc = hob_type[type];
+		else
+			desc = "*Invalid*";
+		printf("%-9s | %04x | ", desc, hdr->len);
+
+		if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
+		    type == HOB_TYPE_GUID_EXT) {
+			guid = (efi_guid_t *)(hdr + 1);
+			uuid_bin_to_str(guid->b, uuid, UUID_STR_FORMAT_GUID);
+			printf("%s", uuid);
+		} else {
+			printf("%36s", "Not Available");
+		}
+		printf("\n");
+		hdr = get_next_hob(hdr);
+		i++;
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(hob, 1, 1, do_hob,
+	   "Print Hand-Off Block (HOB) information",
+	   ""
+);

source/bootloader/u-boot-2020.01/cmd/x86/mtrr.c

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2014 Google, Inc
+ */
+
+#include <common.h>
+#include <asm/msr.h>
+#include <asm/mtrr.h>
+
+static const char *const mtrr_type_name[MTRR_TYPE_COUNT] = {
+	"Uncacheable",
+	"Combine",
+	"2",
+	"3",
+	"Through",
+	"Protect",
+	"Back",
+};
+
+static int do_mtrr_list(void)
+{
+	int i;
+
+	printf("Reg Valid Write-type   %-16s %-16s %-16s\n", "Base   ||",
+	       "Mask   ||", "Size   ||");
+	for (i = 0; i < MTRR_COUNT; i++) {
+		const char *type = "Invalid";
+		uint64_t base, mask, size;
+		bool valid;
+
+		base = native_read_msr(MTRR_PHYS_BASE_MSR(i));
+		mask = native_read_msr(MTRR_PHYS_MASK_MSR(i));
+		size = ~mask & ((1ULL << CONFIG_CPU_ADDR_BITS) - 1);
+		size |= (1 << 12) - 1;
+		size += 1;
+		valid = mask & MTRR_PHYS_MASK_VALID;
+		type = mtrr_type_name[base & MTRR_BASE_TYPE_MASK];
+		printf("%d   %-5s %-12s %016llx %016llx %016llx\n", i,
+		       valid ? "Y" : "N", type, base & ~MTRR_BASE_TYPE_MASK,
+		       mask & ~MTRR_PHYS_MASK_VALID, size);
+	}
+
+	return 0;
+}
+
+static int do_mtrr_set(uint reg, int argc, char * const argv[])
+{
+	const char *typename = argv[0];
+	struct mtrr_state state;
+	uint32_t start, size;
+	uint64_t base, mask;
+	int i, type = -1;
+	bool valid;
+
+	if (argc < 3)
+		return CMD_RET_USAGE;
+	for (i = 0; i < MTRR_TYPE_COUNT; i++) {
+		if (*typename == *mtrr_type_name[i])
+			type = i;
+	}
+	if (type == -1) {
+		printf("Invalid type name %s\n", typename);
+		return CMD_RET_USAGE;
+	}
+	start = simple_strtoul(argv[1], NULL, 16);
+	size = simple_strtoul(argv[2], NULL, 16);
+
+	base = start | type;
+	valid = native_read_msr(MTRR_PHYS_MASK_MSR(reg)) & MTRR_PHYS_MASK_VALID;
+	mask = ~((uint64_t)size - 1);
+	mask &= (1ULL << CONFIG_CPU_ADDR_BITS) - 1;
+	if (valid)
+		mask |= MTRR_PHYS_MASK_VALID;
+
+	printf("base=%llx, mask=%llx\n", base, mask);
+	mtrr_open(&state, true);
+	wrmsrl(MTRR_PHYS_BASE_MSR(reg), base);
+	wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask);
+	mtrr_close(&state, true);
+
+	return 0;
+}
+
+static int mtrr_set_valid(int reg, bool valid)
+{
+	struct mtrr_state state;
+	uint64_t mask;
+
+	mtrr_open(&state, true);
+	mask = native_read_msr(MTRR_PHYS_MASK_MSR(reg));
+	if (valid)
+		mask |= MTRR_PHYS_MASK_VALID;
+	else
+		mask &= ~MTRR_PHYS_MASK_VALID;
+	wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask);
+	mtrr_close(&state, true);
+
+	return 0;
+}
+
+static int do_mtrr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	const char *cmd;
+	uint reg;
+
+	cmd = argv[1];
+	if (argc < 2 || *cmd == 'l')
+		return do_mtrr_list();
+	argc -= 2;
+	argv += 2;
+	if (argc <= 0)
+		return CMD_RET_USAGE;
+	reg = simple_strtoul(argv[0], NULL, 16);
+	if (reg >= MTRR_COUNT) {
+		printf("Invalid register number\n");
+		return CMD_RET_USAGE;
+	}
+	if (*cmd == 'e')
+		return mtrr_set_valid(reg, true);
+	else if (*cmd == 'd')
+		return mtrr_set_valid(reg, false);
+	else if (*cmd == 's')
+		return do_mtrr_set(reg, argc - 1, argv + 1);
+	else
+		return CMD_RET_USAGE;
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	mtrr,	6,	1,	do_mtrr,
+	"Use x86 memory type range registers (32-bit only)",
+	"[list]        - list current registers\n"
+	"set <reg> <type> <start> <size>   - set a register\n"
+	"\t<type> is Uncacheable, Combine, Through, Protect, Back\n"
+	"disable <reg>      - disable a register\n"
+	"ensable <reg>      - enable a register"
+);