linux.git/arch/csky/kernel/asm-offsets.c, branch for-next Linux kernel source tree uaccess: remove CONFIG_SET_FS 2022-02-25T08:36:06+00:00 Arnd Bergmann arnd@arndb.de 2022-02-11T20:42:45+00:00 967747bbc084b93b54e66f9047d342232314cd25 There are no remaining callers of set_fs(), so CONFIG_SET_FS can be removed globally, along with the thread_info field and any references to it. This turns access_ok() into a cheaper check against TASK_SIZE_MAX. As CONFIG_SET_FS is now gone, drop all remaining references to set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel(). Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic] Acked-by: Dinh Nguyen <dinguyen@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> 
There are no remaining callers of set_fs(), so CONFIG_SET_FS
can be removed globally, along with the thread_info field and
any references to it.

This turns access_ok() into a cheaper check against TASK_SIZE_MAX.

As CONFIG_SET_FS is now gone, drop all remaining references to
set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel().

Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes
Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic]
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
sched,arch: Remove unused TASK_STATE offsets 2021-06-18T09:43:09+00:00 Peter Zijlstra peterz@infradead.org 2021-06-11T08:28:16+00:00 7c3edd6d9cb4d8ea8db5b167dc2eee94d7e4667b All 6 architectures define TASK_STATE in asm-offsets, but then never actually use it. Remove the definitions to make sure they never will. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210611082838.472811363@infradead.org 
All 6 architectures define TASK_STATE in asm-offsets, but then never
actually use it. Remove the definitions to make sure they never will.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210611082838.472811363@infradead.org
csky: Fixup gdbmacros.txt with name sp in thread_struct 2020-05-14T16:16:18+00:00 Guo Ren guoren@linux.alibaba.com 2020-05-14T08:04:31+00:00 67002814cf3b7265900003f6a49657847eeeb57d The gdbmacros.txt use sp in thread_struct, but csky use ksp. This cause bttnobp fail to excute. TODO: - Still couldn't display the contents of stack. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> 
The gdbmacros.txt use sp in thread_struct, but csky use ksp. This
cause bttnobp fail to excute.

TODO:
 - Still couldn't display the contents of stack.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
csky: Fixup remove unnecessary save/restore PSR code 2020-05-13T09:55:06+00:00 Guo Ren guoren@linux.alibaba.com 2020-05-13T09:16:26+00:00 9e2ca15322acc5a0a697305e02af9ce5ac881f66 All processes' PSR could success from SETUP_MMU, so need set it in INIT_THREAD again. And use a3 instead of r7 in __switch_to for code convention. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> 
All processes' PSR could success from SETUP_MMU, so need set it
in INIT_THREAD again.

And use a3 instead of r7 in __switch_to for code convention.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
csky: Implement ftrace with regs 2020-03-08T12:55:14+00:00 Guo Ren guoren@linux.alibaba.com 2020-02-18T12:27:39+00:00 89a3927a775c0a7212e2e3c4e2d42cd48895bee0 This patch implements FTRACE_WITH_REGS for csky, which allows a traced function's arguments (and some other registers) to be captured into a struct pt_regs, allowing these to be inspected and/or modified. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> 
This patch implements FTRACE_WITH_REGS for csky, which allows a traced
function's arguments (and some other registers) to be captured into a
struct pt_regs, allowing these to be inspected and/or modified.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
csky: remove unused members in processor.h 2018-12-31T15:16:00+00:00 Guo Ren ren_guo@c-sky.com 2018-12-09T09:31:53+00:00 17a68777bc883c8044c8b2d40aa112ff4e8a4fb1 Cleanup struct cpuinfo_csky and struct thread_struct, remove all esp0 related code. We could get pt_regs from sp and backtrace could use fp in switch_stack. Signed-off-by: Guo Ren <ren_guo@c-sky.com> 
Cleanup struct cpuinfo_csky and struct thread_struct, remove all esp0
related code. We could get pt_regs from sp and backtrace could use fp
in switch_stack.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
csky: fixup save hi,lo,dspcr regs in switch_stack. 2018-12-31T14:57:27+00:00 Guo Ren ren_guo@c-sky.com 2018-12-31T07:17:48+00:00 789154c2ad74c29c3c60c5136c1785745abe4897 HI, LO, DSPCR registers are 807/810 related regs and no need for 610/860. All of the regs must be saved in pt_regs and switch_stack. This patch fixup saving dspcr reg in switch_stack and pt_regs. Signed-off-by: Guo Ren <ren_guo@c-sky.com> 
HI, LO, DSPCR registers are 807/810 related regs and no need for 610/860.
All of the regs must be saved in pt_regs and switch_stack. This patch
fixup saving dspcr reg in switch_stack and pt_regs.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
csky: Misc headers 2018-10-25T16:54:26+00:00 Guo Ren ren_guo@c-sky.com 2018-09-05T06:25:22+00:00 735ee005c371b2d8d1dbf0542590d17f1e0a0b2f This patch adds csky registers' definition, bitops, byteorder, asm-offsets codes. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> 
This patch adds csky registers' definition, bitops, byteorder,
asm-offsets codes.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>