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powerpc fixes for 5.0 #3

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A couple of weeks of fixes.
 
 There's one fix for an oops on Power9 machines with Open CAPI adapters.
 
 And a fix for probable memory corruption in some of the new NPU code, caught by
 smatch though and not seen in the wild.
 
 Plus a few other minor fixes.
 
 There's one non-fix which is the perf_regs change. That was sent during the
 merge window but I accidentally only merged the first of two patches in the
 series. It's been in linux-next so hopefully doesn't conflict with anything in
 acme's tree.
 
 Thanks to:
  Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao, Christian Lamparter,
  Christophe Leroy, Dan Carpenter, Frederic Barrat, Greg Kurz, Jason A.
  Donenfeld, Madhavan Srinivasan.
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Merge tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "A couple of weeks of fixes.

  There's one fix for an oops on Power9 machines with Open CAPI
  adapters.

  And a fix for probable memory corruption in some of the new NPU code,
  caught by smatch though and not seen in the wild.

  Plus a few other minor fixes.

  There's one non-fix which is the perf_regs change. That was sent
  during the merge window but I accidentally only merged the first of
  two patches in the series. It's been in linux-next so hopefully
  doesn't conflict with anything in acme's tree.

  Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao,
  Christian Lamparter, Christophe Leroy, Dan Carpenter, Frederic Barrat,
  Greg Kurz, Jason A. Donenfeld, Madhavan Srinivasan"

* tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/syscalls: Fix syscall tracing
  powerpc/pseries: Fix build break due to pnv_npu2_init()
  powerpc/4xx/ocm: Fix fix for phys_addr_t printf warnings
  powerpc/powernv/npu: Fix oops in pnv_try_setup_npu_table_group()
  powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
  powerpc/8xx: fix setting of pagetable for Abatron BDI debug tool.
  powerpc/powernv/npu: Allocate enough memory in pnv_try_setup_npu_table_group()
  powerpc/perf: Update perf_regs structure to include MMCRA
This commit is contained in:
Linus Torvalds 2019-01-19 05:55:42 +12:00
commit c5b709804e
12 changed files with 25 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/powerpc/include/uapi/asm/perf_regs.h
View File

@ -47,6 +47,7 @@ enum perf_event_powerpc_regs {
PERF_REG_POWERPC_DAR,
PERF_REG_POWERPC_DSISR,
PERF_REG_POWERPC_SIER,
PERF_REG_POWERPC_MMCRA,
PERF_REG_POWERPC_MAX,
};
#endif /* _UAPI_ASM_POWERPC_PERF_REGS_H */

3
arch/powerpc/kernel/head_8xx.S
View File

@ -852,11 +852,12 @@ start_here:
/* set up the PTE pointers for the Abatron bdiGDB.
*/
tovirt(r6,r6)
lis r5, abatron_pteptrs@h
ori r5, r5, abatron_pteptrs@l
stw r5, 0xf0(0) /* Must match your Abatron config file */
tophys(r5,r5)
lis r6, swapper_pg_dir@h
ori r6, r6, swapper_pg_dir@l
stw r6, 0(r5)
/* Now turn on the MMU for real! */

7
arch/powerpc/kernel/signal_64.c
View File

@ -755,11 +755,12 @@ SYSCALL_DEFINE0(rt_sigreturn)
if (restore_tm_sigcontexts(current, &uc->uc_mcontext,
&uc_transact->uc_mcontext))
goto badframe;
}
} else
#endif
/* Fall through, for non-TM restore */
if (!MSR_TM_ACTIVE(msr)) {
{
/*
* Fall through, for non-TM restore
*
* Unset MSR[TS] on the thread regs since MSR from user
* context does not have MSR active, and recheckpoint was
* not called since restore_tm_sigcontexts() was not called

7
arch/powerpc/kernel/trace/ftrace.c
View File

@ -967,13 +967,6 @@ unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip)
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_PPC64)
unsigned long __init arch_syscall_addr(int nr)
{
return sys_call_table[nr*2];
}
#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 */
#ifdef PPC64_ELF_ABI_v1
char *arch_ftrace_match_adjust(char *str, const char *search)
{

6
arch/powerpc/perf/perf_regs.c
View File

@ -70,6 +70,7 @@ static unsigned int pt_regs_offset[PERF_REG_POWERPC_MAX] = {
PT_REGS_OFFSET(PERF_REG_POWERPC_DAR, dar),
PT_REGS_OFFSET(PERF_REG_POWERPC_DSISR, dsisr),
PT_REGS_OFFSET(PERF_REG_POWERPC_SIER, dar),
PT_REGS_OFFSET(PERF_REG_POWERPC_MMCRA, dsisr),
};
u64 perf_reg_value(struct pt_regs *regs, int idx)
@ -83,6 +84,11 @@ u64 perf_reg_value(struct pt_regs *regs, int idx)
!is_sier_available()))
return 0;
if (idx == PERF_REG_POWERPC_MMCRA &&
(IS_ENABLED(CONFIG_FSL_EMB_PERF_EVENT) ||
IS_ENABLED(CONFIG_PPC32)))
return 0;
return regs_get_register(regs, pt_regs_offset[idx]);
}

6
arch/powerpc/platforms/4xx/ocm.c
View File

@ -237,12 +237,12 @@ static int ocm_debugfs_show(struct seq_file *m, void *v)
continue;
seq_printf(m, "PPC4XX OCM : %d\n", ocm->index);
seq_printf(m, "PhysAddr : %pa[p]\n", &(ocm->phys));
seq_printf(m, "PhysAddr : %pa\n", &(ocm->phys));
seq_printf(m, "MemTotal : %d Bytes\n", ocm->memtotal);
seq_printf(m, "MemTotal(NC) : %d Bytes\n", ocm->nc.memtotal);
seq_printf(m, "MemTotal(C) : %d Bytes\n\n", ocm->c.memtotal);
seq_printf(m, "NC.PhysAddr : %pa[p]\n", &(ocm->nc.phys));
seq_printf(m, "NC.PhysAddr : %pa\n", &(ocm->nc.phys));
seq_printf(m, "NC.VirtAddr : 0x%p\n", ocm->nc.virt);
seq_printf(m, "NC.MemTotal : %d Bytes\n", ocm->nc.memtotal);
seq_printf(m, "NC.MemFree : %d Bytes\n", ocm->nc.memfree);
@ -252,7 +252,7 @@ static int ocm_debugfs_show(struct seq_file *m, void *v)
blk->size, blk->owner);
}
seq_printf(m, "\nC.PhysAddr : %pa[p]\n", &(ocm->c.phys));
seq_printf(m, "\nC.PhysAddr : %pa\n", &(ocm->c.phys));
seq_printf(m, "C.VirtAddr : 0x%p\n", ocm->c.virt);
seq_printf(m, "C.MemTotal : %d Bytes\n", ocm->c.memtotal);
seq_printf(m, "C.MemFree : %d Bytes\n", ocm->c.memfree);

2
arch/powerpc/platforms/powernv/npu-dma.c
View File

@ -564,7 +564,7 @@ struct iommu_table_group *pnv_try_setup_npu_table_group(struct pnv_ioda_pe *pe)
}
} else {
/* Create a group for 1 GPU and attached NPUs for POWER8 */
pe->npucomp = kzalloc(sizeof(pe->npucomp), GFP_KERNEL);
pe->npucomp = kzalloc(sizeof(*pe->npucomp), GFP_KERNEL);
table_group = &pe->npucomp->table_group;
table_group->ops = &pnv_npu_peers_ops;
iommu_register_group(table_group, hose->global_number,

3
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -2681,7 +2681,8 @@ static void pnv_pci_ioda_setup_iommu_api(void)
list_for_each_entry(hose, &hose_list, list_node) {
phb = hose->private_data;
if (phb->type == PNV_PHB_NPU_NVLINK)
if (phb->type == PNV_PHB_NPU_NVLINK ||
phb->type == PNV_PHB_NPU_OCAPI)
continue;
list_for_each_entry(pe, &phb->ioda.pe_list, list) {

2
arch/powerpc/platforms/pseries/pci.c
View File

@ -264,7 +264,9 @@ void __init pSeries_final_fixup(void)
if (!of_device_is_compatible(nvdn->parent,
"ibm,power9-npu"))
continue;
#ifdef CONFIG_PPC_POWERNV
WARN_ON_ONCE(pnv_npu2_init(hose));
#endif
break;
}
}

1
tools/arch/powerpc/include/uapi/asm/perf_regs.h
View File

@ -47,6 +47,7 @@ enum perf_event_powerpc_regs {
PERF_REG_POWERPC_DAR,
PERF_REG_POWERPC_DSISR,
PERF_REG_POWERPC_SIER,
PERF_REG_POWERPC_MMCRA,
PERF_REG_POWERPC_MAX,
};
#endif /* _UAPI_ASM_POWERPC_PERF_REGS_H */

3
tools/perf/arch/powerpc/include/perf_regs.h
View File

@ -63,7 +63,8 @@ static const char *reg_names[] = {
[PERF_REG_POWERPC_TRAP] = "trap",
[PERF_REG_POWERPC_DAR] = "dar",
[PERF_REG_POWERPC_DSISR] = "dsisr",
[PERF_REG_POWERPC_SIER] = "sier"
[PERF_REG_POWERPC_SIER] = "sier",
[PERF_REG_POWERPC_MMCRA] = "mmcra"
};
static inline const char *perf_reg_name(int id)

1
tools/perf/arch/powerpc/util/perf_regs.c
View File

@ -53,6 +53,7 @@ const struct sample_reg sample_reg_masks[] = {
SMPL_REG(dar, PERF_REG_POWERPC_DAR),
SMPL_REG(dsisr, PERF_REG_POWERPC_DSISR),
SMPL_REG(sier, PERF_REG_POWERPC_SIER),
SMPL_REG(mmcra, PERF_REG_POWERPC_MMCRA),
SMPL_REG_END
};