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-rw-r--r--arch/sparc/Kconfig22
-rw-r--r--arch/sparc/include/asm/mmu_context_64.h6
-rw-r--r--arch/sparc/include/asm/pgtable_64.h116
-rw-r--r--arch/sparc/include/asm/prom.h3
-rw-r--r--arch/sparc/include/asm/smp_64.h2
-rw-r--r--arch/sparc/include/asm/uaccess_64.h2
-rw-r--r--arch/sparc/kernel/leon_pci.c5
-rw-r--r--arch/sparc/kernel/of_device_32.c4
-rw-r--r--arch/sparc/kernel/of_device_64.c6
-rw-r--r--arch/sparc/kernel/of_device_common.c2
-rw-r--r--arch/sparc/kernel/pci.c10
-rw-r--r--arch/sparc/kernel/pci_schizo.c2
-rw-r--r--arch/sparc/kernel/pci_sun4v.c2
-rw-r--r--arch/sparc/kernel/pcic.c5
-rw-r--r--arch/sparc/kernel/power.c2
-rw-r--r--arch/sparc/kernel/process_64.c2
-rw-r--r--arch/sparc/kernel/prom_64.c2
-rw-r--r--arch/sparc/kernel/time_32.c2
-rw-r--r--arch/sparc/kernel/traps_64.c2
-rw-r--r--arch/sparc/mm/tsb.c4
20 files changed, 112 insertions, 89 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 84437a4c6545..8535e19062f6 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -32,6 +32,7 @@ config SPARC
select GENERIC_IRQ_SHOW
select ARCH_WANT_IPC_PARSE_VERSION
select GENERIC_PCI_IOMAP
+ select HAS_IOPORT
select HAVE_NMI_WATCHDOG if SPARC64
select HAVE_CBPF_JIT if SPARC32
select HAVE_EBPF_JIT if SPARC64
@@ -270,18 +271,17 @@ config ARCH_SPARSEMEM_DEFAULT
def_bool y if SPARC64
config ARCH_FORCE_MAX_ORDER
- int "Maximum zone order"
- default "13"
+ int "Order of maximal physically contiguous allocations"
+ default "12"
help
- The kernel memory allocator divides physically contiguous memory
- blocks into "zones", where each zone is a power of two number of
- pages. This option selects the largest power of two that the kernel
- keeps in the memory allocator. If you need to allocate very large
- blocks of physically contiguous memory, then you may need to
- increase this value.
-
- This config option is actually maximum order plus one. For example,
- a value of 13 means that the largest free memory block is 2^12 pages.
+ The kernel page allocator limits the size of maximal physically
+ contiguous allocations. The limit is called MAX_ORDER and it
+ defines the maximal power of two of number of pages that can be
+ allocated as a single contiguous block. This option allows
+ overriding the default setting when ability to allocate very
+ large blocks of physically contiguous memory is required.
+
+ Don't change if unsure.
if SPARC64 || COMPILE_TEST
source "kernel/power/Kconfig"
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index 7a8380c63aab..799e797c5cdd 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -185,6 +185,12 @@ static inline void finish_arch_post_lock_switch(void)
}
}
+#define mm_untag_mask mm_untag_mask
+static inline unsigned long mm_untag_mask(struct mm_struct *mm)
+{
+ return -1UL >> adi_nbits();
+}
+
#include <asm-generic/mmu_context.h>
#endif /* !(__ASSEMBLY__) */
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 2dc8d4641734..5563efa1a19f 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -357,6 +357,42 @@ static inline pgprot_t pgprot_noncached(pgprot_t prot)
*/
#define pgprot_noncached pgprot_noncached
+static inline unsigned long pte_dirty(pte_t pte)
+{
+ unsigned long mask;
+
+ __asm__ __volatile__(
+ "\n661: mov %1, %0\n"
+ " nop\n"
+ " .section .sun4v_2insn_patch, \"ax\"\n"
+ " .word 661b\n"
+ " sethi %%uhi(%2), %0\n"
+ " sllx %0, 32, %0\n"
+ " .previous\n"
+ : "=r" (mask)
+ : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V));
+
+ return (pte_val(pte) & mask);
+}
+
+static inline unsigned long pte_write(pte_t pte)
+{
+ unsigned long mask;
+
+ __asm__ __volatile__(
+ "\n661: mov %1, %0\n"
+ " nop\n"
+ " .section .sun4v_2insn_patch, \"ax\"\n"
+ " .word 661b\n"
+ " sethi %%uhi(%2), %0\n"
+ " sllx %0, 32, %0\n"
+ " .previous\n"
+ : "=r" (mask)
+ : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V));
+
+ return (pte_val(pte) & mask);
+}
+
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
#define arch_make_huge_pte arch_make_huge_pte
@@ -418,28 +454,43 @@ static inline bool is_hugetlb_pte(pte_t pte)
}
#endif
+static inline pte_t __pte_mkhwwrite(pte_t pte)
+{
+ unsigned long val = pte_val(pte);
+
+ /*
+ * Note: we only want to set the HW writable bit if the SW writable bit
+ * and the SW dirty bit are set.
+ */
+ __asm__ __volatile__(
+ "\n661: or %0, %2, %0\n"
+ " .section .sun4v_1insn_patch, \"ax\"\n"
+ " .word 661b\n"
+ " or %0, %3, %0\n"
+ " .previous\n"
+ : "=r" (val)
+ : "0" (val), "i" (_PAGE_W_4U), "i" (_PAGE_W_4V));
+
+ return __pte(val);
+}
+
static inline pte_t pte_mkdirty(pte_t pte)
{
- unsigned long val = pte_val(pte), tmp;
+ unsigned long val = pte_val(pte), mask;
__asm__ __volatile__(
- "\n661: or %0, %3, %0\n"
- " nop\n"
- "\n662: nop\n"
+ "\n661: mov %1, %0\n"
" nop\n"
" .section .sun4v_2insn_patch, \"ax\"\n"
" .word 661b\n"
- " sethi %%uhi(%4), %1\n"
- " sllx %1, 32, %1\n"
- " .word 662b\n"
- " or %1, %%lo(%4), %1\n"
- " or %0, %1, %0\n"
+ " sethi %%uhi(%2), %0\n"
+ " sllx %0, 32, %0\n"
" .previous\n"
- : "=r" (val), "=r" (tmp)
- : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U),
- "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V));
+ : "=r" (mask)
+ : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V));
- return __pte(val);
+ pte = __pte(val | mask);
+ return pte_write(pte) ? __pte_mkhwwrite(pte) : pte;
}
static inline pte_t pte_mkclean(pte_t pte)
@@ -481,7 +532,8 @@ static inline pte_t pte_mkwrite(pte_t pte)
: "=r" (mask)
: "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V));
- return __pte(val | mask);
+ pte = __pte(val | mask);
+ return pte_dirty(pte) ? __pte_mkhwwrite(pte) : pte;
}
static inline pte_t pte_wrprotect(pte_t pte)
@@ -584,42 +636,6 @@ static inline unsigned long pte_young(pte_t pte)
return (pte_val(pte) & mask);
}
-static inline unsigned long pte_dirty(pte_t pte)
-{
- unsigned long mask;
-
- __asm__ __volatile__(
- "\n661: mov %1, %0\n"
- " nop\n"
- " .section .sun4v_2insn_patch, \"ax\"\n"
- " .word 661b\n"
- " sethi %%uhi(%2), %0\n"
- " sllx %0, 32, %0\n"
- " .previous\n"
- : "=r" (mask)
- : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V));
-
- return (pte_val(pte) & mask);
-}
-
-static inline unsigned long pte_write(pte_t pte)
-{
- unsigned long mask;
-
- __asm__ __volatile__(
- "\n661: mov %1, %0\n"
- " nop\n"
- " .section .sun4v_2insn_patch, \"ax\"\n"
- " .word 661b\n"
- " sethi %%uhi(%2), %0\n"
- " sllx %0, 32, %0\n"
- " .previous\n"
- : "=r" (mask)
- : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V));
-
- return (pte_val(pte) & mask);
-}
-
static inline unsigned long pte_exec(pte_t pte)
{
unsigned long mask;
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 587edb8b5a65..8184575b1336 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -19,11 +19,14 @@
#include <linux/mutex.h>
#include <linux/atomic.h>
#include <linux/irqdomain.h>
+#include <linux/spinlock.h>
#define of_compat_cmp(s1, s2, l) strncmp((s1), (s2), (l))
#define of_prop_cmp(s1, s2) strcasecmp((s1), (s2))
#define of_node_cmp(s1, s2) strcmp((s1), (s2))
+extern raw_spinlock_t devtree_lock;
+
struct of_irq_controller {
unsigned int (*irq_build)(struct device_node *, unsigned int, void *);
void *data;
diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index e75783b6abc4..505b6700805d 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -49,7 +49,7 @@ int hard_smp_processor_id(void);
void smp_fill_in_cpu_possible_map(void);
void smp_fill_in_sib_core_maps(void);
-void cpu_play_dead(void);
+void __noreturn cpu_play_dead(void);
void smp_fetch_global_regs(void);
void smp_fetch_global_pmu(void);
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index 94266a5c5b04..b825a5dd0210 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -8,8 +8,10 @@
#include <linux/compiler.h>
#include <linux/string.h>
+#include <linux/mm_types.h>
#include <asm/asi.h>
#include <asm/spitfire.h>
+#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm-generic/access_ok.h>
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index e5e5ff6b9a5c..b6663a3fbae9 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -62,15 +62,14 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
+ struct resource *res;
u16 cmd, oldcmd;
int i;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
oldcmd = cmd;
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *res = &dev->resource[i];
-
+ pci_dev_for_each_resource(dev, res, i) {
/* Only set up the requested stuff */
if (!(mask & (1<<i)))
continue;
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 4ebf51e6e78e..b60f58e04164 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -29,7 +29,7 @@ static int of_bus_pci_match(struct device_node *np)
* parent as-is, not with the PCI translate
* method which chops off the top address cell.
*/
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 0;
return 1;
@@ -223,7 +223,7 @@ static int __init build_one_resource(struct device_node *parent,
static int __init use_1to1_mapping(struct device_node *pp)
{
/* If we have a ranges property in the parent, use it. */
- if (of_find_property(pp, "ranges", NULL) != NULL)
+ if (of_property_present(pp, "ranges"))
return 0;
/* Some SBUS devices use intermediate nodes to express
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 5a9f86b1d4e7..5b5143e17ba3 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -58,7 +58,7 @@ static int of_bus_pci_match(struct device_node *np)
* parent as-is, not with the PCI translate
* method which chops off the top address cell.
*/
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 0;
return 1;
@@ -78,7 +78,7 @@ static int of_bus_simba_match(struct device_node *np)
* simba.
*/
if (of_node_name_eq(np, "pci")) {
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 1;
}
@@ -283,7 +283,7 @@ static int __init build_one_resource(struct device_node *parent,
static int __init use_1to1_mapping(struct device_node *pp)
{
/* If we have a ranges property in the parent, use it. */
- if (of_find_property(pp, "ranges", NULL) != NULL)
+ if (of_property_present(pp, "ranges"))
return 0;
/* If the parent is the dma node of an ISA bus, pass
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c
index e717a56efc5d..60f86b837658 100644
--- a/arch/sparc/kernel/of_device_common.c
+++ b/arch/sparc/kernel/of_device_common.c
@@ -162,7 +162,7 @@ int of_bus_sbus_match(struct device_node *np)
* don't have some intervening real bus that provides
* ranges based translations.
*/
- if (of_find_property(dp, "ranges", NULL) != NULL)
+ if (of_property_present(dp, "ranges"))
break;
dp = dp->parent;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index cb1ef25116e9..a948a49817c7 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -663,11 +663,10 @@ static void pci_claim_bus_resources(struct pci_bus *bus)
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
+ struct resource *r;
int i;
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *r = &dev->resource[i];
-
+ pci_dev_for_each_resource(dev, r, i) {
if (r->parent || !r->start || !r->flags)
continue;
@@ -724,15 +723,14 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
+ struct resource *res;
u16 cmd, oldcmd;
int i;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
oldcmd = cmd;
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *res = &dev->resource[i];
-
+ pci_dev_for_each_resource(dev, res, i) {
/* Only set up the requested stuff */
if (!(mask & (1<<i)))
continue;
diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c
index 421aba00e6b0..23b47f7fdb1d 100644
--- a/arch/sparc/kernel/pci_schizo.c
+++ b/arch/sparc/kernel/pci_schizo.c
@@ -1270,7 +1270,7 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
pbm->chip_version >= 0x2)
tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT;
- if (!of_find_property(pbm->op->dev.of_node, "no-bus-parking", NULL))
+ if (!of_property_read_bool(pbm->op->dev.of_node, "no-bus-parking"))
tmp |= SCHIZO_PCICTRL_PARK;
else
tmp &= ~SCHIZO_PCICTRL_PARK;
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 384480971805..7d91ca6aa675 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -193,7 +193,7 @@ static void *dma_4v_alloc_coherent(struct device *dev, size_t size,
size = IO_PAGE_ALIGN(size);
order = get_order(size);
- if (unlikely(order >= MAX_ORDER))
+ if (unlikely(order > MAX_ORDER))
return NULL;
npages = size >> IO_PAGE_SHIFT;
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index ee4c9a9a171c..25fe0a061732 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -643,15 +643,14 @@ void pcibios_fixup_bus(struct pci_bus *bus)
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
+ struct resource *res;
u16 cmd, oldcmd;
int i;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
oldcmd = cmd;
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *res = &dev->resource[i];
-
+ pci_dev_for_each_resource(dev, res, i) {
/* Only set up the requested stuff */
if (!(mask & (1<<i)))
continue;
diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c
index d941875dd718..8147985a1dc4 100644
--- a/arch/sparc/kernel/power.c
+++ b/arch/sparc/kernel/power.c
@@ -28,7 +28,7 @@ static int has_button_interrupt(unsigned int irq, struct device_node *dp)
{
if (irq == 0xffffffff)
return 0;
- if (!of_find_property(dp, "button", NULL))
+ if (!of_property_read_bool(dp, "button"))
return 0;
return 1;
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 91c2b8124527..b51d8fb0ecdc 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -95,7 +95,7 @@ void arch_cpu_idle(void)
}
#ifdef CONFIG_HOTPLUG_CPU
-void arch_cpu_idle_dead(void)
+void __noreturn arch_cpu_idle_dead(void)
{
sched_preempt_enable_no_resched();
cpu_play_dead();
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index f883a50fa333..998aa693d491 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -502,7 +502,7 @@ static void *fill_in_one_cpu(struct device_node *dp, int cpuid, int arg)
struct device_node *portid_parent = NULL;
int portid = -1;
- if (of_find_property(dp, "cpuid", NULL)) {
+ if (of_property_present(dp, "cpuid")) {
int limit = 2;
portid_parent = dp;
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 8a08830e4a65..958c2cf4479b 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -277,7 +277,7 @@ static int clock_probe(struct platform_device *op)
return -ENODEV;
/* Only the primary RTC has an address property */
- if (!of_find_property(dp, "address", NULL))
+ if (!of_property_present(dp, "address"))
return -ENODEV;
m48t59_rtc.resource = &op->resource[0];
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 5b4de4a89dec..08ffd17d5ec3 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -897,7 +897,7 @@ void __init cheetah_ecache_flush_init(void)
/* Now allocate error trap reporting scoreboard. */
sz = NR_CPUS * (2 * sizeof(struct cheetah_err_info));
- for (order = 0; order < MAX_ORDER; order++) {
+ for (order = 0; order <= MAX_ORDER; order++) {
if ((PAGE_SIZE << order) >= sz)
break;
}
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index 912205787161..5e2931a18409 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -402,8 +402,8 @@ void tsb_grow(struct mm_struct *mm, unsigned long tsb_index, unsigned long rss)
unsigned long new_rss_limit;
gfp_t gfp_flags;
- if (max_tsb_size > (PAGE_SIZE << MAX_ORDER))
- max_tsb_size = (PAGE_SIZE << MAX_ORDER);
+ if (max_tsb_size > PAGE_SIZE << MAX_ORDER)
+ max_tsb_size = PAGE_SIZE << MAX_ORDER;
new_cache_index = 0;
for (new_size = 8192; new_size < max_tsb_size; new_size <<= 1UL) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-07 14:57:08 +0300