OpenRISC fixes for 6.13-rc3

A few fixes. One is just a formatting change but I figure I will include
 it here to avoid unnessesary pull requests in the future.  If you prefer
 not to merge it now I can leave it out.
 
  - Fix from Masahiro Yamada to fix 6.13 OpenRISC boot issues after
    vmlinux.lds.h symbol ordering was changed.
  - Code formatting fixups from Geert.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE2cRzVK74bBA6Je/xw7McLV5mJ+QFAmdbE1YACgkQw7McLV5m
 J+RBFg//TP5RcFAJQkAZ3D6rrCpuFx5pFe0PZaVpD1JbgPIXCoj5+TghY2akfxA5
 ogU1P68FZosh0M0NAns36Viw0lH55zdGyrAnsc61KYXFZtE9OloLuBgXa3tTV9/y
 7Qep+thCBA4KIfMFQpsHeAG4zC+NBQbSZtzrQLY5FUvYHAaTiJj4NZxh9D7uEJhm
 k3qyCDmh5jpx0wkAvk97A2nM6ks7Io4+V4kKrijRwfSvSUmoQq/wAfjbpY41LqYR
 +BoX6cjC/+iDXOOvAYadmYGWOiTU1zFI9MUykYE6O6tRAgMaM0tSw1DkyInLni6n
 SYWKw3rPYIxcszNd9C15+L0U3xUYXf55AXWTIpgWnD/+nw+wn4ggX2iYjXuwHC4P
 hkQpervd0AxcV9KOn5Vr5g8mHOJ1JuaOtCtUu143TgOWY0JirbFOZHqe+fxTn5w0
 t2TRu/o+QWKV7HU91Pb219YRWCTArxS+QgSLOV/sRT9JkcS9Y33Rqd4osZ8PST8L
 mWEWFwiDft3kmMtLEJ1KOzBb8H8tDesL/o83CzTa/T3gpQpeLmRX7IsXR+QsLFo8
 rKo/tfjIUlgwu+ORJXiXKpoWifTetaPVh9eHdwLEu+O1Z8LK1q9aXon9rDeOXWyG
 qL058kBpkTxrrTVT0GSN9FMWOJl69ZgJtxAPcydk2kYzioSuNgM=
 =rh6a
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC fixes from Stafford Horne:

 - Fix from Masahiro Yamada to fix 6.13 OpenRISC boot issues after
   vmlinux.lds.h symbol ordering was changed

 - Code formatting fixups from Geert

* tag 'for-linus' of https://github.com/openrisc/linux:
  openrisc: Fix misalignments in head.S
  openrisc: place exception table at the head of vmlinux
This commit is contained in:
Linus Torvalds 2024-12-12 13:20:53 -08:00
commit eefa7a9c06
4 changed files with 20 additions and 18 deletions

View File

@ -239,6 +239,8 @@ handler: ;\
/* =====================================================[ exceptions] === */
__REF
/* ---[ 0x100: RESET exception ]----------------------------------------- */
EXCEPTION_ENTRY(_tng_kernel_start)

View File

@ -26,15 +26,15 @@
#include <asm/asm-offsets.h>
#include <linux/of_fdt.h>
#define tophys(rd,rs) \
l.movhi rd,hi(-KERNELBASE) ;\
#define tophys(rd,rs) \
l.movhi rd,hi(-KERNELBASE) ;\
l.add rd,rd,rs
#define CLEAR_GPR(gpr) \
#define CLEAR_GPR(gpr) \
l.movhi gpr,0x0
#define LOAD_SYMBOL_2_GPR(gpr,symbol) \
l.movhi gpr,hi(symbol) ;\
#define LOAD_SYMBOL_2_GPR(gpr,symbol) \
l.movhi gpr,hi(symbol) ;\
l.ori gpr,gpr,lo(symbol)
@ -326,21 +326,21 @@
l.addi r1,r1,-(INT_FRAME_SIZE) ;\
/* r1 is KSP, r30 is __pa(KSP) */ ;\
tophys (r30,r1) ;\
l.sw PT_GPR12(r30),r12 ;\
l.sw PT_GPR12(r30),r12 ;\
l.mfspr r12,r0,SPR_EPCR_BASE ;\
l.sw PT_PC(r30),r12 ;\
l.mfspr r12,r0,SPR_ESR_BASE ;\
l.sw PT_SR(r30),r12 ;\
/* save r31 */ ;\
EXCEPTION_T_LOAD_GPR30(r12) ;\
l.sw PT_GPR30(r30),r12 ;\
l.sw PT_GPR30(r30),r12 ;\
/* save r10 as was prior to exception */ ;\
EXCEPTION_T_LOAD_GPR10(r12) ;\
l.sw PT_GPR10(r30),r12 ;\
/* save PT_SP as was prior to exception */ ;\
l.sw PT_GPR10(r30),r12 ;\
/* save PT_SP as was prior to exception */ ;\
EXCEPTION_T_LOAD_SP(r12) ;\
l.sw PT_SP(r30),r12 ;\
l.sw PT_GPR13(r30),r13 ;\
l.sw PT_GPR13(r30),r13 ;\
/* --> */ ;\
/* save exception r4, set r4 = EA */ ;\
l.sw PT_GPR4(r30),r4 ;\
@ -357,6 +357,8 @@
/* =====================================================[ exceptions] === */
__HEAD
/* ---[ 0x100: RESET exception ]----------------------------------------- */
.org 0x100
/* Jump to .init code at _start which lives in the .head section
@ -394,7 +396,7 @@ _dispatch_do_ipage_fault:
.org 0x500
EXCEPTION_HANDLE(_timer_handler)
/* ---[ 0x600: Alignment exception ]-------------------------------------- */
/* ---[ 0x600: Alignment exception ]------------------------------------- */
.org 0x600
EXCEPTION_HANDLE(_alignment_handler)
@ -424,7 +426,7 @@ _dispatch_do_ipage_fault:
.org 0xc00
EXCEPTION_HANDLE(_sys_call_handler)
/* ---[ 0xd00: Floating point exception ]--------------------------------- */
/* ---[ 0xd00: Floating point exception ]-------------------------------- */
.org 0xd00
EXCEPTION_HANDLE(_fpe_trap_handler)
@ -506,10 +508,10 @@ _dispatch_do_ipage_fault:
/* .text*/
/* This early stuff belongs in HEAD, but some of the functions below definitely
/* This early stuff belongs in the .init.text section, but some of the functions below definitely
* don't... */
__HEAD
__INIT
.global _start
_start:
/* Init r0 to zero as per spec */
@ -816,7 +818,7 @@ secondary_start:
#endif
/* ========================================[ cache ]=== */
/* ==========================================================[ cache ]=== */
/* alignment here so we don't change memory offsets with
* memory controller defined

View File

@ -50,6 +50,7 @@ SECTIONS
.text : AT(ADDR(.text) - LOAD_OFFSET)
{
_stext = .;
HEAD_TEXT
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
@ -83,8 +84,6 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
__init_begin = .;
HEAD_TEXT_SECTION
/* Page aligned */
INIT_TEXT_SECTION(PAGE_SIZE)

View File

@ -24,7 +24,6 @@ arch/m68k/kernel/head.o
arch/m68k/kernel/sun3-head.o
arch/microblaze/kernel/head.o
arch/nios2/kernel/head.o
arch/openrisc/kernel/head.o
arch/parisc/kernel/head.o
arch/powerpc/kernel/head_44x.o
arch/powerpc/kernel/head_64.o