Merge branch 'arm/common' into next

2 files changed, 39 insertions, 550 deletions

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index b7388a425f09..beb07a4529ac 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -19,214 +19,10 @@
 
 static efi_system_table_t *sys_table;
 
-static void efi_char16_printk(efi_char16_t *str)
-{
-	struct efi_simple_text_output_protocol *out;
-
-	out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
-	efi_call_phys2(out->output_string, out, str);
-}
-
-static void efi_printk(char *str)
-{
-	char *s8;
-
-	for (s8 = str; *s8; s8++) {
-		efi_char16_t ch[2] = { 0 };
-
-		ch[0] = *s8;
-		if (*s8 == '\n') {
-			efi_char16_t nl[2] = { '\r', 0 };
-			efi_char16_printk(nl);
-		}
-
-		efi_char16_printk(ch);
-	}
-}
-
-static efi_status_t __get_map(efi_memory_desc_t **map, unsigned long *map_size,
-			      unsigned long *desc_size)
-{
-	efi_memory_desc_t *m = NULL;
-	efi_status_t status;
-	unsigned long key;
-	u32 desc_version;
-
-	*map_size = sizeof(*m) * 32;
-again:
-	/*
-	 * Add an additional efi_memory_desc_t because we're doing an
-	 * allocation which may be in a new descriptor region.
-	 */
-	*map_size += sizeof(*m);
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, *map_size, (void **)&m);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	status = efi_call_phys5(sys_table->boottime->get_memory_map, map_size,
-				m, &key, desc_size, &desc_version);
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		efi_call_phys1(sys_table->boottime->free_pool, m);
-		goto again;
-	}
-
-	if (status != EFI_SUCCESS)
-		efi_call_phys1(sys_table->boottime->free_pool, m);
-
-fail:
-	*map = m;
-	return status;
-}
-
-/*
- * Allocate at the highest possible address that is not above 'max'.
- */
-static efi_status_t high_alloc(unsigned long size, unsigned long align,
-			      unsigned long *addr, unsigned long max)
-{
-	unsigned long map_size, desc_size;
-	efi_memory_desc_t *map;
-	efi_status_t status;
-	unsigned long nr_pages;
-	u64 max_addr = 0;
-	int i;
-
-	status = __get_map(&map, &map_size, &desc_size);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-again:
-	for (i = 0; i < map_size / desc_size; i++) {
-		efi_memory_desc_t *desc;
-		unsigned long m = (unsigned long)map;
-		u64 start, end;
 
-		desc = (efi_memory_desc_t *)(m + (i * desc_size));
-		if (desc->type != EFI_CONVENTIONAL_MEMORY)
-			continue;
-
-		if (desc->num_pages < nr_pages)
-			continue;
+#include "../../../../drivers/firmware/efi/efi-stub-helper.c"
 
-		start = desc->phys_addr;
-		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
 
-		if ((start + size) > end || (start + size) > max)
-			continue;
-
-		if (end - size > max)
-			end = max;
-
-		if (round_down(end - size, align) < start)
-			continue;
-
-		start = round_down(end - size, align);
-
-		/*
-		 * Don't allocate at 0x0. It will confuse code that
-		 * checks pointers against NULL.
-		 */
-		if (start == 0x0)
-			continue;
-
-		if (start > max_addr)
-			max_addr = start;
-	}
-
-	if (!max_addr)
-		status = EFI_NOT_FOUND;
-	else {
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
-					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-					nr_pages, &max_addr);
-		if (status != EFI_SUCCESS) {
-			max = max_addr;
-			max_addr = 0;
-			goto again;
-		}
-
-		*addr = max_addr;
-	}
-
-free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
-
-fail:
-	return status;
-}
-
-/*
- * Allocate at the lowest possible address.
- */
-static efi_status_t low_alloc(unsigned long size, unsigned long align,
-			      unsigned long *addr)
-{
-	unsigned long map_size, desc_size;
-	efi_memory_desc_t *map;
-	efi_status_t status;
-	unsigned long nr_pages;
-	int i;
-
-	status = __get_map(&map, &map_size, &desc_size);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-	for (i = 0; i < map_size / desc_size; i++) {
-		efi_memory_desc_t *desc;
-		unsigned long m = (unsigned long)map;
-		u64 start, end;
-
-		desc = (efi_memory_desc_t *)(m + (i * desc_size));
-
-		if (desc->type != EFI_CONVENTIONAL_MEMORY)
-			continue;
-
-		if (desc->num_pages < nr_pages)
-			continue;
-
-		start = desc->phys_addr;
-		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
-
-		/*
-		 * Don't allocate at 0x0. It will confuse code that
-		 * checks pointers against NULL. Skip the first 8
-		 * bytes so we start at a nice even number.
-		 */
-		if (start == 0x0)
-			start += 8;
-
-		start = round_up(start, align);
-		if ((start + size) > end)
-			continue;
-
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
-					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-					nr_pages, &start);
-		if (status == EFI_SUCCESS) {
-			*addr = start;
-			break;
-		}
-	}
-
-	if (i == map_size / desc_size)
-		status = EFI_NOT_FOUND;
-
-free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
-fail:
-	return status;
-}
-
-static void low_free(unsigned long size, unsigned long addr)
-{
-	unsigned long nr_pages;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-	efi_call_phys2(sys_table->boottime->free_pages, addr, nr_pages);
-}
 
 static void find_bits(unsigned long mask, u8 *pos, u8 *size)
 {
@@ -624,242 +420,6 @@ void setup_graphics(struct boot_params *boot_params)
 	}
 }
 
-struct initrd {
-	efi_file_handle_t *handle;
-	u64 size;
-};
-
-/*
- * Check the cmdline for a LILO-style initrd= arguments.
- *
- * We only support loading an initrd from the same filesystem as the
- * kernel image.
- */
-static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
-				    struct setup_header *hdr)
-{
-	struct initrd *initrds;
-	unsigned long initrd_addr;
-	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
-	u64 initrd_total;
-	efi_file_io_interface_t *io;
-	efi_file_handle_t *fh;
-	efi_status_t status;
-	int nr_initrds;
-	char *str;
-	int i, j, k;
-
-	initrd_addr = 0;
-	initrd_total = 0;
-
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
-
-	j = 0;			/* See close_handles */
-
-	if (!str || !*str)
-		return EFI_SUCCESS;
-
-	for (nr_initrds = 0; *str; nr_initrds++) {
-		str = strstr(str, "initrd=");
-		if (!str)
-			break;
-
-		str += 7;
-
-		/* Skip any leading slashes */
-		while (*str == '/' || *str == '\\')
-			str++;
-
-		while (*str && *str != ' ' && *str != '\n')
-			str++;
-	}
-
-	if (!nr_initrds)
-		return EFI_SUCCESS;
-
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA,
-				nr_initrds * sizeof(*initrds),
-				&initrds);
-	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for initrds\n");
-		goto fail;
-	}
-
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
-	for (i = 0; i < nr_initrds; i++) {
-		struct initrd *initrd;
-		efi_file_handle_t *h;
-		efi_file_info_t *info;
-		efi_char16_t filename_16[256];
-		unsigned long info_sz;
-		efi_guid_t info_guid = EFI_FILE_INFO_ID;
-		efi_char16_t *p;
-		u64 file_sz;
-
-		str = strstr(str, "initrd=");
-		if (!str)
-			break;
-
-		str += 7;
-
-		initrd = &initrds[i];
-		p = filename_16;
-
-		/* Skip any leading slashes */
-		while (*str == '/' || *str == '\\')
-			str++;
-
-		while (*str && *str != ' ' && *str != '\n') {
-			if ((u8 *)p >= (u8 *)filename_16 + sizeof(filename_16))
-				break;
-
-			if (*str == '/') {
-				*p++ = '\\';
-				*str++;
-			} else {
-				*p++ = *str++;
-			}
-		}
-
-		*p = '\0';
-
-		/* Only open the volume once. */
-		if (!i) {
-			efi_boot_services_t *boottime;
-
-			boottime = sys_table->boottime;
-
-			status = efi_call_phys3(boottime->handle_protocol,
-					image->device_handle, &fs_proto, &io);
-			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to handle fs_proto\n");
-				goto free_initrds;
-			}
-
-			status = efi_call_phys2(io->open_volume, io, &fh);
-			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to open volume\n");
-				goto free_initrds;
-			}
-		}
-
-		status = efi_call_phys5(fh->open, fh, &h, filename_16,
-					EFI_FILE_MODE_READ, (u64)0);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to open initrd file: ");
-			efi_char16_printk(filename_16);
-			efi_printk("\n");
-			goto close_handles;
-		}
-
-		initrd->handle = h;
-
-		info_sz = 0;
-		status = efi_call_phys4(h->get_info, h, &info_guid,
-					&info_sz, NULL);
-		if (status != EFI_BUFFER_TOO_SMALL) {
-			efi_printk("Failed to get initrd info size\n");
-			goto close_handles;
-		}
-
-grow:
-		status = efi_call_phys3(sys_table->boottime->allocate_pool,
-					EFI_LOADER_DATA, info_sz, &info);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc mem for initrd info\n");
-			goto close_handles;
-		}
-
-		status = efi_call_phys4(h->get_info, h, &info_guid,
-					&info_sz, info);
-		if (status == EFI_BUFFER_TOO_SMALL) {
-			efi_call_phys1(sys_table->boottime->free_pool, info);
-			goto grow;
-		}
-
-		file_sz = info->file_size;
-		efi_call_phys1(sys_table->boottime->free_pool, info);
-
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to get initrd info\n");
-			goto close_handles;
-		}
-
-		initrd->size = file_sz;
-		initrd_total += file_sz;
-	}
-
-	if (initrd_total) {
-		unsigned long addr;
-
-		/*
-		 * Multiple initrd's need to be at consecutive
-		 * addresses in memory, so allocate enough memory for
-		 * all the initrd's.
-		 */
-		status = high_alloc(initrd_total, 0x1000,
-				   &initrd_addr, hdr->initrd_addr_max);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc highmem for initrds\n");
-			goto close_handles;
-		}
-
-		/* We've run out of free low memory. */
-		if (initrd_addr > hdr->initrd_addr_max) {
-			efi_printk("We've run out of free low memory\n");
-			status = EFI_INVALID_PARAMETER;
-			goto free_initrd_total;
-		}
-
-		addr = initrd_addr;
-		for (j = 0; j < nr_initrds; j++) {
-			u64 size;
-
-			size = initrds[j].size;
-			while (size) {
-				u64 chunksize;
-				if (size > EFI_READ_CHUNK_SIZE)
-					chunksize = EFI_READ_CHUNK_SIZE;
-				else
-					chunksize = size;
-				status = efi_call_phys3(fh->read,
-							initrds[j].handle,
-							&chunksize, addr);
-				if (status != EFI_SUCCESS) {
-					efi_printk("Failed to read initrd\n");
-					goto free_initrd_total;
-				}
-				addr += chunksize;
-				size -= chunksize;
-			}
-
-			efi_call_phys1(fh->close, initrds[j].handle);
-		}
-
-	}
-
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
-
-	hdr->ramdisk_image = initrd_addr;
-	hdr->ramdisk_size = initrd_total;
-
-	return status;
-
-free_initrd_total:
-	low_free(initrd_total, initrd_addr);
-
-close_handles:
-	for (k = j; k < i; k++)
-		efi_call_phys1(fh->close, initrds[k].handle);
-free_initrds:
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
-fail:
-	hdr->ramdisk_image = 0;
-	hdr->ramdisk_size = 0;
-
-	return status;
-}
 
 /*
  * Because the x86 boot code expects to be passed a boot_params we
@@ -875,14 +435,15 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	struct efi_info *efi;
 	efi_loaded_image_t *image;
 	void *options;
-	u32 load_options_size;
 	efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID;
 	int options_size = 0;
 	efi_status_t status;
-	unsigned long cmdline;
+	char *cmdline_ptr;
 	u16 *s2;
 	u8 *s1;
 	int i;
+	unsigned long ramdisk_addr;
+	unsigned long ramdisk_size;
 
 	sys_table = _table;
 
@@ -893,13 +454,14 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	status = efi_call_phys3(sys_table->boottime->handle_protocol,
 				handle, &proto, (void *)&image);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
+		efi_printk(sys_table, "Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
 		return NULL;
 	}
 
-	status = low_alloc(0x4000, 1, (unsigned long *)&boot_params);
+	status = efi_low_alloc(sys_table, 0x4000, 1,
+			       (unsigned long *)&boot_params);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc lowmem for boot params\n");
+		efi_printk(sys_table, "Failed to alloc lowmem for boot params\n");
 		return NULL;
 	}
 
@@ -926,40 +488,11 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	hdr->type_of_loader = 0x21;
 
 	/* Convert unicode cmdline to ascii */
-	options = image->load_options;
-	load_options_size = image->load_options_size / 2; /* ASCII */
-	cmdline = 0;
-	s2 = (u16 *)options;
-
-	if (s2) {
-		while (*s2 && *s2 != '\n' && options_size < load_options_size) {
-			s2++;
-			options_size++;
-		}
-
-		if (options_size) {
-			if (options_size > hdr->cmdline_size)
-				options_size = hdr->cmdline_size;
-
-			options_size++;	/* NUL termination */
-
-			status = low_alloc(options_size, 1, &cmdline);
-			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to alloc mem for cmdline\n");
-				goto fail;
-			}
-
-			s1 = (u8 *)(unsigned long)cmdline;
-			s2 = (u16 *)options;
-
-			for (i = 0; i < options_size - 1; i++)
-				*s1++ = *s2++;
-
-			*s1 = '\0';
-		}
-	}
-
-	hdr->cmd_line_ptr = cmdline;
+	cmdline_ptr = efi_convert_cmdline_to_ascii(sys_table, image,
+						   &options_size);
+	if (!cmdline_ptr)
+		goto fail;
+	hdr->cmd_line_ptr = (unsigned long)cmdline_ptr;
 
 	hdr->ramdisk_image = 0;
 	hdr->ramdisk_size = 0;
@@ -969,16 +502,20 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 	memset(sdt, 0, sizeof(*sdt));
 
-	status = handle_ramdisks(image, hdr);
+	status = handle_cmdline_files(sys_table, image,
+				      (char *)(unsigned long)hdr->cmd_line_ptr,
+				      "initrd=", hdr->initrd_addr_max,
+				      &ramdisk_addr, &ramdisk_size);
 	if (status != EFI_SUCCESS)
 		goto fail2;
+	hdr->ramdisk_image = ramdisk_addr;
+	hdr->ramdisk_size = ramdisk_size;
 
 	return boot_params;
 fail2:
-	if (options_size)
-		low_free(options_size, hdr->cmd_line_ptr);
+	efi_free(sys_table, options_size, hdr->cmd_line_ptr);
 fail:
-	low_free(0x4000, (unsigned long)boot_params);
+	efi_free(sys_table, 0x4000, (unsigned long)boot_params);
 	return NULL;
 }
 
@@ -996,25 +533,12 @@ static efi_status_t exit_boot(struct boot_params *boot_params,
 	u8 nr_entries;
 	int i;
 
-	size = sizeof(*mem_map) * 32;
-
-again:
-	size += sizeof(*mem_map) * 2;
-	_size = size;
-	status = low_alloc(size, 1, (unsigned long *)&mem_map);
-	if (status != EFI_SUCCESS)
-		return status;
-
 get_map:
-	status = efi_call_phys5(sys_table->boottime->get_memory_map, &size,
-				mem_map, &key, &desc_size, &desc_version);
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		low_free(_size, (unsigned long)mem_map);
-		goto again;
-	}
+	status = efi_get_memory_map(sys_table, &mem_map, &size, &desc_size,
+				    &desc_version, &key);
 
 	if (status != EFI_SUCCESS)
-		goto free_mem_map;
+		return status;
 
 	memcpy(&efi->efi_loader_signature, EFI_LOADER_SIGNATURE, sizeof(__u32));
 	efi->efi_systab = (unsigned long)sys_table;
@@ -1043,6 +567,7 @@ get_map:
 			goto free_mem_map;
 
 		called_exit = true;
+		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
 		goto get_map;
 	}
 
@@ -1111,44 +636,10 @@ get_map:
 	return EFI_SUCCESS;
 
 free_mem_map:
-	low_free(_size, (unsigned long)mem_map);
+	efi_call_phys1(sys_table->boottime->free_pool, mem_map);
 	return status;
 }
 
-static efi_status_t relocate_kernel(struct setup_header *hdr)
-{
-	unsigned long start, nr_pages;
-	efi_status_t status;
-
-	/*
-	 * The EFI firmware loader could have placed the kernel image
-	 * anywhere in memory, but the kernel has various restrictions
-	 * on the max physical address it can run at. Attempt to move
-	 * the kernel to boot_params.pref_address, or as low as
-	 * possible.
-	 */
-	start = hdr->pref_address;
-	nr_pages = round_up(hdr->init_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-
-	status = efi_call_phys4(sys_table->boottime->allocate_pages,
-				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-				nr_pages, &start);
-	if (status != EFI_SUCCESS) {
-		status = low_alloc(hdr->init_size, hdr->kernel_alignment,
-				   &start);
-		if (status != EFI_SUCCESS)
-			efi_printk("Failed to alloc mem for kernel\n");
-	}
-
-	if (status == EFI_SUCCESS)
-		memcpy((void *)start, (void *)(unsigned long)hdr->code32_start,
-		       hdr->init_size);
-
-	hdr->pref_address = hdr->code32_start;
-	hdr->code32_start = (__u32)start;
-
-	return status;
-}
 
 /*
  * On success we return a pointer to a boot_params structure, and NULL
@@ -1177,14 +668,15 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 				EFI_LOADER_DATA, sizeof(*gdt),
 				(void **)&gdt);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for gdt structure\n");
+		efi_printk(sys_table, "Failed to alloc mem for gdt structure\n");
 		goto fail;
 	}
 
 	gdt->size = 0x800;
-	status = low_alloc(gdt->size, 8, (unsigned long *)&gdt->address);
+	status = efi_low_alloc(sys_table, gdt->size, 8,
+			   (unsigned long *)&gdt->address);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for gdt\n");
+		efi_printk(sys_table, "Failed to alloc mem for gdt\n");
 		goto fail;
 	}
 
@@ -1192,7 +684,7 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 				EFI_LOADER_DATA, sizeof(*idt),
 				(void **)&idt);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for idt structure\n");
+		efi_printk(sys_table, "Failed to alloc mem for idt structure\n");
 		goto fail;
 	}
 
@@ -1204,10 +696,16 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 	 * address, relocate it.
 	 */
 	if (hdr->pref_address != hdr->code32_start) {
-		status = relocate_kernel(hdr);
-
+		unsigned long bzimage_addr = hdr->code32_start;
+		status = efi_relocate_kernel(sys_table, &bzimage_addr,
+					     hdr->init_size, hdr->init_size,
+					     hdr->pref_address,
+					     hdr->kernel_alignment);
 		if (status != EFI_SUCCESS)
 			goto fail;
+
+		hdr->pref_address = hdr->code32_start;
+		hdr->code32_start = bzimage_addr;
 	}
 
 	status = exit_boot(boot_params, handle);
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index e5b0a8f91c5f..81b6b652b46a 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -11,9 +11,6 @@
 
 #define DESC_TYPE_CODE_DATA	(1 << 0)
 
-#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
-#define EFI_READ_CHUNK_SIZE	(1024 * 1024)
-
 #define EFI_CONSOLE_OUT_DEVICE_GUID    \
 	EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x0, 0x90, 0x27, \
 		  0x3f, 0xc1, 0x4d)
@@ -62,10 +59,4 @@ struct efi_uga_draw_protocol {
 	void *blt;
 };
 
-struct efi_simple_text_output_protocol {
-	void *reset;
-	void *output_string;
-	void *test_string;
-};
-
 #endif /* BOOT_COMPRESSED_EBOOT_H */