+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Extensible Firmware Interface
* Based on 'Extensible Firmware Interface Specification' version 0.9,
#include <linux/string.h>
#include <linux/types.h>
-#if CONFIG_EFI_STUB_64BIT || (!defined(CONFIG_EFI_STUB) && defined(__x86_64__))
-/* EFI uses the Microsoft ABI which is not the default for GCC */
+/*
+ * EFI on x86_64 uses the Microsoft ABI which is not the default for GCC.
+ *
+ * There are two scenarios for EFI on x86_64: building a 64-bit EFI stub
+ * codes (CONFIG_EFI_STUB_64BIT) and building a 64-bit U-Boot (CONFIG_X86_64).
+ * Either needs to be properly built with the '-m64' compiler flag, and hence
+ * it is enough to only check the compiler provided define __x86_64__ here.
+ */
+#ifdef __x86_64__
#define EFIAPI __attribute__((ms_abi))
+#define efi_va_list __builtin_ms_va_list
+#define efi_va_start __builtin_ms_va_start
+#define efi_va_arg __builtin_va_arg
+#define efi_va_end __builtin_ms_va_end
#else
#define EFIAPI asmlinkage
-#endif
+#define efi_va_list va_list
+#define efi_va_start va_start
+#define efi_va_arg va_arg
+#define efi_va_end va_end
+#endif /* __x86_64__ */
+
+#define EFI32_LOADER_SIGNATURE "EL32"
+#define EFI64_LOADER_SIGNATURE "EL64"
struct efi_device_path;
typedef struct {
u8 b[16];
-} efi_guid_t;
-
-#define EFI_BITS_PER_LONG BITS_PER_LONG
+} efi_guid_t __attribute__((aligned(8)));
-/*
- * With 64-bit EFI stub, EFI_BITS_PER_LONG has to be 64. EFI_STUB is set
- * in lib/efi/Makefile, when building the stub.
- */
-#if defined(CONFIG_EFI_STUB_64BIT) && defined(EFI_STUB)
-#undef EFI_BITS_PER_LONG
-#define EFI_BITS_PER_LONG 64
-#endif
+#define EFI_BITS_PER_LONG (sizeof(long) * 8)
/* Bit mask for EFI status code with error */
#define EFI_ERROR_MASK (1UL << (EFI_BITS_PER_LONG - 1))
#define EFI_IP_ADDRESS_CONFLICT (EFI_ERROR_MASK | 34)
#define EFI_HTTP_ERROR (EFI_ERROR_MASK | 35)
-#define EFI_WARN_DELETE_FAILURE 2
+#define EFI_WARN_UNKNOWN_GLYPH 1
+#define EFI_WARN_DELETE_FAILURE 2
+#define EFI_WARN_WRITE_FAILURE 3
+#define EFI_WARN_BUFFER_TOO_SMALL 4
+#define EFI_WARN_STALE_DATA 5
+#define EFI_WARN_FILE_SYSTEM 6
+#define EFI_WARN_RESET_REQUIRED 7
typedef unsigned long efi_status_t;
typedef u64 efi_physical_addr_t;
typedef u64 efi_virtual_addr_t;
-typedef void *efi_handle_t;
+typedef struct efi_object *efi_handle_t;
#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
- ((efi_guid_t) \
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, \
- (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })
+ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } }
/* Generic EFI table header */
struct efi_table_hdr {
* part of the processor.
*/
EFI_PAL_CODE,
+ /*
+ * Non-volatile memory.
+ */
+ EFI_PERSISTENT_MEMORY_TYPE,
EFI_MAX_MEMORY_TYPE,
EFI_TABLE_END, /* For efi_build_mem_table() */
};
/* Attribute values */
-enum {
- EFI_MEMORY_UC_SHIFT = 0, /* uncached */
- EFI_MEMORY_WC_SHIFT = 1, /* write-coalescing */
- EFI_MEMORY_WT_SHIFT = 2, /* write-through */
- EFI_MEMORY_WB_SHIFT = 3, /* write-back */
- EFI_MEMORY_UCE_SHIFT = 4, /* uncached, exported */
- EFI_MEMORY_WP_SHIFT = 12, /* write-protect */
- EFI_MEMORY_RP_SHIFT = 13, /* read-protect */
- EFI_MEMORY_XP_SHIFT = 14, /* execute-protect */
- EFI_MEMORY_RUNTIME_SHIFT = 63, /* range requires runtime mapping */
-
- EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT,
- EFI_MEM_DESC_VERSION = 1,
-};
+#define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */
+#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */
+#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */
+#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */
+#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */
+#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
+#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
+#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
+#define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */
+#define EFI_MEMORY_MORE_RELIABLE \
+ ((u64)0x0000000000010000ULL) /* higher reliability */
+#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
+#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* specific-purpose memory (SPM) */
+#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
+#define EFI_MEM_DESC_VERSION 1
#define EFI_PAGE_SHIFT 12
-#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
+#define EFI_PAGE_SIZE (1ULL << EFI_PAGE_SHIFT)
#define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1)
struct efi_mem_desc {
enum efi_entry_t {
EFIET_END, /* Signals this is the last (empty) entry */
EFIET_MEMORY_MAP,
+ EFIET_GOP_MODE,
+ EFIET_SYS_TABLE,
/* Number of entries */
EFIET_MEMORY_COUNT,
struct efi_mem_desc desc[];
};
+/**
+ * struct efi_entry_gopmode - a GOP mode table passed to U-Boot
+ *
+ * @fb_base: EFI's framebuffer base address
+ * @fb_size: EFI's framebuffer size
+ * @info_size: GOP mode info structure size
+ * @info: Start address of the GOP mode info structure
+ */
+struct efi_entry_gopmode {
+ efi_physical_addr_t fb_base;
+ /*
+ * Not like the ones in 'struct efi_gop_mode' which are 'unsigned
+ * long', @fb_size and @info_size have to be 'u64' here. As the EFI
+ * stub codes may have different bit size from the U-Boot payload,
+ * using 'long' will cause mismatch between the producer (stub) and
+ * the consumer (payload).
+ */
+ u64 fb_size;
+ u64 info_size;
+ /*
+ * We cannot directly use 'struct efi_gop_mode_info info[]' here as
+ * it causes compiler to complain: array type has incomplete element
+ * type 'struct efi_gop_mode_info'.
+ */
+ struct /* efi_gop_mode_info */ {
+ u32 version;
+ u32 width;
+ u32 height;
+ u32 pixel_format;
+ u32 pixel_bitmask[4];
+ u32 pixels_per_scanline;
+ } info[];
+};
+
+/**
+ * struct efi_entry_systable - system table passed to U-Boot
+ *
+ * @sys_table: EFI system table address
+ */
+struct efi_entry_systable {
+ efi_physical_addr_t sys_table;
+};
+
static inline struct efi_mem_desc *efi_get_next_mem_desc(
struct efi_entry_memmap *map, struct efi_mem_desc *desc)
{
projects / oweals / u-boot.git / blobdiff