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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-16 12:04:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-16 12:04:39 -0800 |
| commit | 66fc6a6254c7a138aef7806bd933c218e1aefcfc (patch) | |
| tree | 4fb03238988d2aeb9bcb5ac5eeff3537706ba647 /arch/microblaze/kernel/process.c | |
| parent | 7acfd4274e26e05a4f12ad31bf331fef11ebc6a3 (diff) | |
| parent | 05cdf457477d6603b207d91873f0a3d4c7f8c1cd (diff) | |
| download | linux-66fc6a6254c7a138aef7806bd933c218e1aefcfc.tar.bz2 | |
Merge tag 'microblaze-v5.11' of git://git.monstr.eu/linux-2.6-microblaze
Pull microblaze updates from Michal Simek:
"The biggest change is to remove support for noMMU configuration.
FPGAs are bigger so people use Microblaze with MMU for a lot of years
and there is likely no user of this code anymore. No one is updating
libraries for this configuration either.
- Remove noMMU support
- Add support for TIF_NOTIFY_SIGNAL
- Small header fix"
* tag 'microblaze-v5.11' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Remove noMMU code
microblaze: add support for TIF_NOTIFY_SIGNAL
microblaze: Replace <linux/clk-provider.h> by <linux/of_clk.h>
Diffstat (limited to 'arch/microblaze/kernel/process.c')
| -rw-r--r-- | arch/microblaze/kernel/process.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index f99860771ff4..657c2beb665e 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -69,9 +69,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, ti->cpu_context.r19 = (unsigned long)arg; childregs->pt_mode = 1; local_save_flags(childregs->msr); -#ifdef CONFIG_MMU ti->cpu_context.msr = childregs->msr & ~MSR_IE; -#endif ti->cpu_context.r15 = (unsigned long)ret_from_kernel_thread - 8; return 0; } @@ -81,9 +79,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, memset(&ti->cpu_context, 0, sizeof(struct cpu_context)); ti->cpu_context.r1 = (unsigned long)childregs; -#ifndef CONFIG_MMU - ti->cpu_context.msr = (unsigned long)childregs->msr; -#else childregs->msr |= MSR_UMS; /* we should consider the fact that childregs is a copy of the parent @@ -105,7 +100,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, ti->cpu_context.msr = (childregs->msr|MSR_VM); ti->cpu_context.msr &= ~MSR_UMS; /* switch_to to kernel mode */ ti->cpu_context.msr &= ~MSR_IE; -#endif ti->cpu_context.r15 = (unsigned long)ret_from_fork - 8; /* @@ -130,13 +124,10 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp) regs->pc = pc; regs->r1 = usp; regs->pt_mode = 0; -#ifdef CONFIG_MMU regs->msr |= MSR_UMS; regs->msr &= ~MSR_VM; -#endif } -#ifdef CONFIG_MMU #include <linux/elfcore.h> /* * Set up a thread for executing a new program @@ -145,7 +136,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpregs) { return 0; /* MicroBlaze has no separate FPU registers */ } -#endif /* CONFIG_MMU */ void arch_cpu_idle(void) { |