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-rw-r--r--arch/powerpc/include/asm/mmu.h4
-rw-r--r--arch/powerpc/include/asm/mmzone.h3
-rw-r--r--arch/powerpc/kernel/traps.c2
-rw-r--r--arch/powerpc/lib/Makefile4
-rw-r--r--arch/powerpc/lib/sstep.c10
-rw-r--r--arch/powerpc/mm/book3s64/pgtable.c2
-rw-r--r--arch/powerpc/mm/init-common.c5
-rw-r--r--arch/powerpc/perf/hv-gpci.c29
-rw-r--r--arch/powerpc/platforms/embedded6xx/linkstation.c3
-rw-r--r--arch/powerpc/platforms/embedded6xx/mpc10x.h3
10 files changed, 53 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 0699cfeeb8c9..2141ae7441a9 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -375,5 +375,9 @@ extern void *abatron_pteptrs[2];
#include <asm/nohash/mmu.h>
#endif
+#if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
+#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MMU_H_ */
diff --git a/arch/powerpc/include/asm/mmzone.h b/arch/powerpc/include/asm/mmzone.h
index 91c69ff53a8a..50c2198c2c76 100644
--- a/arch/powerpc/include/asm/mmzone.h
+++ b/arch/powerpc/include/asm/mmzone.h
@@ -42,9 +42,6 @@ u64 memory_hotplug_max(void);
#else
#define memory_hotplug_max() memblock_end_of_DRAM()
#endif /* CONFIG_NEED_MULTIPLE_NODES */
-#ifdef CONFIG_FA_DUMP
-#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
-#endif
#endif /* __KERNEL__ */
#endif /* _ASM_MMZONE_H_ */
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 70b99246dec4..402a05f3a484 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1424,10 +1424,12 @@ static int emulate_instruction(struct pt_regs *regs)
return -EINVAL;
}
+#ifdef CONFIG_GENERIC_BUG
int is_valid_bugaddr(unsigned long addr)
{
return is_kernel_addr(addr);
}
+#endif
#ifdef CONFIG_MATH_EMULATION
static int emulate_math(struct pt_regs *regs)
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 7c603839fe28..841e6ed30f13 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -34,8 +34,8 @@ obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
# 64-bit linker creates .sfpr on demand for final link (vmlinux),
# so it is only needed for modules, and only for older linkers which
# do not support --save-restore-funcs
-ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
-always-$(CONFIG_PPC64) += crtsavres.o
+ifeq ($(call ld-ifversion, -lt, 225000000, y)$(CONFIG_PPC64),yy)
+always += crtsavres.o
endif
obj-$(CONFIG_PPC_BOOK3S_64) += copyuser_power7.o copypage_power7.o \
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 27650cd5857f..490162fb0893 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -469,6 +469,8 @@ static int do_fp_load(struct instruction_op *op, unsigned long ea,
} u;
nb = GETSIZE(op->type);
+ if (nb > sizeof(u))
+ return -EINVAL;
if (!address_ok(regs, ea, nb))
return -EFAULT;
rn = op->reg;
@@ -519,6 +521,8 @@ static int do_fp_store(struct instruction_op *op, unsigned long ea,
} u;
nb = GETSIZE(op->type);
+ if (nb > sizeof(u))
+ return -EINVAL;
if (!address_ok(regs, ea, nb))
return -EFAULT;
rn = op->reg;
@@ -563,6 +567,9 @@ static nokprobe_inline int do_vec_load(int rn, unsigned long ea,
u8 b[sizeof(__vector128)];
} u = {};
+ if (size > sizeof(u))
+ return -EINVAL;
+
if (!address_ok(regs, ea & ~0xfUL, 16))
return -EFAULT;
/* align to multiple of size */
@@ -590,6 +597,9 @@ static nokprobe_inline int do_vec_store(int rn, unsigned long ea,
u8 b[sizeof(__vector128)];
} u;
+ if (size > sizeof(u))
+ return -EINVAL;
+
if (!address_ok(regs, ea & ~0xfUL, 16))
return -EFAULT;
/* align to multiple of size */
diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c
index 2bf7e1b4fd82..c4890f4b0b6c 100644
--- a/arch/powerpc/mm/book3s64/pgtable.c
+++ b/arch/powerpc/mm/book3s64/pgtable.c
@@ -442,6 +442,7 @@ void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
set_pte_at(vma->vm_mm, addr, ptep, pte);
}
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/*
* For hash translation mode, we use the deposited table to store hash slot
* information and they are stored at PTRS_PER_PMD offset from related pmd
@@ -463,6 +464,7 @@ int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
return true;
}
+#endif
/*
* Does the CPU support tlbie?
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
index a84da92920f7..e7b9cc90fd9e 100644
--- a/arch/powerpc/mm/init-common.c
+++ b/arch/powerpc/mm/init-common.c
@@ -104,7 +104,7 @@ void pgtable_cache_add(unsigned int shift)
* as to leave enough 0 bits in the address to contain it. */
unsigned long minalign = max(MAX_PGTABLE_INDEX_SIZE + 1,
HUGEPD_SHIFT_MASK + 1);
- struct kmem_cache *new;
+ struct kmem_cache *new = NULL;
/* It would be nice if this was a BUILD_BUG_ON(), but at the
* moment, gcc doesn't seem to recognize is_power_of_2 as a
@@ -117,7 +117,8 @@ void pgtable_cache_add(unsigned int shift)
align = max_t(unsigned long, align, minalign);
name = kasprintf(GFP_KERNEL, "pgtable-2^%d", shift);
- new = kmem_cache_create(name, table_size, align, 0, ctor(shift));
+ if (name)
+ new = kmem_cache_create(name, table_size, align, 0, ctor(shift));
if (!new)
panic("Could not allocate pgtable cache for order %d", shift);
diff --git a/arch/powerpc/perf/hv-gpci.c b/arch/powerpc/perf/hv-gpci.c
index ac3f3df57fe3..e85f1962be02 100644
--- a/arch/powerpc/perf/hv-gpci.c
+++ b/arch/powerpc/perf/hv-gpci.c
@@ -153,6 +153,20 @@ static unsigned long single_gpci_request(u32 req, u32 starting_index,
ret = plpar_hcall_norets(H_GET_PERF_COUNTER_INFO,
virt_to_phys(arg), HGPCI_REQ_BUFFER_SIZE);
+
+ /*
+ * ret value as 'H_PARAMETER' with detail_rc as 'GEN_BUF_TOO_SMALL',
+ * specifies that the current buffer size cannot accommodate
+ * all the information and a partial buffer returned.
+ * Since in this function we are only accessing data for a given starting index,
+ * we don't need to accommodate whole data and can get required count by
+ * accessing first entry data.
+ * Hence hcall fails only incase the ret value is other than H_SUCCESS or
+ * H_PARAMETER with detail_rc value as GEN_BUF_TOO_SMALL(0x1B).
+ */
+ if (ret == H_PARAMETER && be32_to_cpu(arg->params.detail_rc) == 0x1B)
+ ret = 0;
+
if (ret) {
pr_devel("hcall failed: 0x%lx\n", ret);
goto out;
@@ -217,6 +231,7 @@ static int h_gpci_event_init(struct perf_event *event)
{
u64 count;
u8 length;
+ unsigned long ret;
/* Not our event */
if (event->attr.type != event->pmu->type)
@@ -247,13 +262,23 @@ static int h_gpci_event_init(struct perf_event *event)
}
/* check if the request works... */
- if (single_gpci_request(event_get_request(event),
+ ret = single_gpci_request(event_get_request(event),
event_get_starting_index(event),
event_get_secondary_index(event),
event_get_counter_info_version(event),
event_get_offset(event),
length,
- &count)) {
+ &count);
+
+ /*
+ * ret value as H_AUTHORITY implies that partition is not permitted to retrieve
+ * performance information, and required to set
+ * "Enable Performance Information Collection" option.
+ */
+ if (ret == H_AUTHORITY)
+ return -EPERM;
+
+ if (ret) {
pr_devel("gpci hcall failed\n");
return -EINVAL;
}
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index f514d5d28cd4..3f3821eb4c36 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -97,9 +97,6 @@ static void __init linkstation_init_IRQ(void)
mpic_init(mpic);
}
-extern void avr_uart_configure(void);
-extern void avr_uart_send(const char);
-
static void __noreturn linkstation_restart(char *cmd)
{
local_irq_disable();
diff --git a/arch/powerpc/platforms/embedded6xx/mpc10x.h b/arch/powerpc/platforms/embedded6xx/mpc10x.h
index 5ad12023e562..ebc258fa4858 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc10x.h
+++ b/arch/powerpc/platforms/embedded6xx/mpc10x.h
@@ -156,4 +156,7 @@ int mpc10x_disable_store_gathering(struct pci_controller *hose);
/* For MPC107 boards that use the built-in openpic */
void mpc10x_set_openpic(void);
+void avr_uart_configure(void);
+void avr_uart_send(const char c);
+
#endif /* __PPC_KERNEL_MPC10X_H */
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-30 12:28:57 +0000