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authorVitaly Wool <vitaly.wool@konsulko.com>2021-10-11 12:14:14 +0300
committerPalmer Dabbelt <palmerdabbelt@google.com>2021-10-27 00:31:15 +0300
commitf9ace4ede49b09d59d82fea88aa0dc0c770743eb (patch)
tree881074b50a31a6c5f87e215fa9651deb684c2856 /arch/riscv/kernel/vmlinux-xip.lds.S
parent241527bb84674bd597113892ecf2c7ed4a410e00 (diff)
downloadlinux-f9ace4ede49b09d59d82fea88aa0dc0c770743eb.tar.xz
riscv: remove .text section size limitation for XIP
Currently there's a limit of 8MB for the .text section of a RISC-V image in the XIP case. This breaks compilation of many automatic builds and is generally inconvenient. This patch removes that limitation and optimizes XIP image file size at the same time. Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/kernel/vmlinux-xip.lds.S')
-rw-r--r--arch/riscv/kernel/vmlinux-xip.lds.S10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/riscv/kernel/vmlinux-xip.lds.S b/arch/riscv/kernel/vmlinux-xip.lds.S
index 9c9f35091ef0..f5ed08262139 100644
--- a/arch/riscv/kernel/vmlinux-xip.lds.S
+++ b/arch/riscv/kernel/vmlinux-xip.lds.S
@@ -64,8 +64,11 @@ SECTIONS
/*
* From this point, stuff is considered writable and will be copied to RAM
*/
- __data_loc = ALIGN(16); /* location in file */
- . = LOAD_OFFSET + XIP_OFFSET; /* location in memory */
+ __data_loc = ALIGN(PAGE_SIZE); /* location in file */
+ . = KERNEL_LINK_ADDR + XIP_OFFSET; /* location in memory */
+
+#undef LOAD_OFFSET
+#define LOAD_OFFSET (KERNEL_LINK_ADDR + XIP_OFFSET - (__data_loc & XIP_OFFSET_MASK))
_sdata = .; /* Start of data section */
_data = .;
@@ -96,7 +99,6 @@ SECTIONS
KEEP(*(__soc_builtin_dtb_table))
__soc_builtin_dtb_table_end = .;
}
- PERCPU_SECTION(L1_CACHE_BYTES)
. = ALIGN(8);
.alternative : {
@@ -122,6 +124,8 @@ SECTIONS
BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
+ PERCPU_SECTION(L1_CACHE_BYTES)
+
.rel.dyn : AT(ADDR(.rel.dyn) - LOAD_OFFSET) {
*(.rel.dyn*)
}