diff options
| author | Alexander Egorenkov <egorenar@linux.ibm.com> | 2021-06-15 14:15:07 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 09:39:15 +0200 |
| commit | 84733284f67b1a937f6205fdb16aa5cbb8b4f53d (patch) | |
| tree | 4d271615ac8c5e35ec7976f01e0722472f47b2d6 /arch/s390/include/asm/setup.h | |
| parent | f1d3c5323772a215d910aeaf697d210a3671cf81 (diff) | |
s390/boot: introduce boot data 'initrd_data'
The new boot data struct shall replace global variables INITRD_START and
INITRD_SIZE. It is initialized in the decompressor and passed
to the decompressed kernel. In comparison to the old solution, this one
doesn't access data at fixed physical addresses which will become important
when the decompressor becomes relocatable.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/setup.h')
| -rw-r--r-- | arch/s390/include/asm/setup.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index b72714c632d7..d693ee4e8e04 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -60,8 +60,6 @@ #include <asm/types.h> #define IPL_DEVICE (*(unsigned long *) (IPL_DEVICE_OFFSET)) -#define INITRD_START (*(unsigned long *) (INITRD_START_OFFSET)) -#define INITRD_SIZE (*(unsigned long *) (INITRD_SIZE_OFFSET)) #define OLDMEM_BASE (*(unsigned long *) (OLDMEM_BASE_OFFSET)) #define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET)) #define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET)) @@ -160,6 +158,12 @@ static inline unsigned long kaslr_offset(void) extern int is_full_image; +struct initrd_data { + unsigned long start; + unsigned long size; +}; +extern struct initrd_data initrd_data; + static inline u32 gen_lpswe(unsigned long addr) { BUILD_BUG_ON(addr > 0xfff); |