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-rw-r--r--arch/powerpc/kernel/dt_cpu_ftrs.c2
-rw-r--r--arch/powerpc/kernel/proc_powerpc.c37
-rw-r--r--arch/powerpc/kernel/prom.c2
-rw-r--r--arch/powerpc/kernel/rtas.c21
-rw-r--r--arch/powerpc/kernel/setup-common.c5
-rw-r--r--arch/powerpc/kernel/smp.c11
-rw-r--r--arch/powerpc/kernel/syscalls/syscall.tbl4
-rw-r--r--arch/powerpc/kernel/time.c5
-rw-r--r--arch/powerpc/kernel/trace/ftrace.c4
-rw-r--r--arch/powerpc/kernel/trace/ftrace_64_pg.c2
-rw-r--r--arch/powerpc/kernel/vdso.c20
11 files changed, 61 insertions, 52 deletions
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index af4263594eb2..1bee15c013e7 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -867,7 +867,7 @@ bool __init dt_cpu_ftrs_init(void *fdt)
using_dt_cpu_ftrs = false;
/* Setup and verify the FDT, if it fails we just bail */
- if (!early_init_dt_verify(fdt))
+ if (!early_init_dt_verify(fdt, __pa(fdt)))
return false;
if (!of_scan_flat_dt(fdt_find_cpu_features, NULL))
diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c
index b109cd7b5d01..3816a2bf2b84 100644
--- a/arch/powerpc/kernel/proc_powerpc.c
+++ b/arch/powerpc/kernel/proc_powerpc.c
@@ -4,6 +4,7 @@
*/
#include <linux/init.h>
+#include <linux/memblock.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/kernel.h>
@@ -12,9 +13,10 @@
#include <asm/machdep.h>
#include <asm/vdso_datapage.h>
#include <asm/rtas.h>
+#include <asm/systemcfg.h>
#include <linux/uaccess.h>
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
static loff_t page_map_seek(struct file *file, loff_t off, int whence)
{
@@ -33,10 +35,9 @@ static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
if ((vma->vm_end - vma->vm_start) > PAGE_SIZE)
return -EINVAL;
- remap_pfn_range(vma, vma->vm_start,
- __pa(pde_data(file_inode(file))) >> PAGE_SHIFT,
- PAGE_SIZE, vma->vm_page_prot);
- return 0;
+ return remap_pfn_range(vma, vma->vm_start,
+ __pa(pde_data(file_inode(file))) >> PAGE_SHIFT,
+ PAGE_SIZE, vma->vm_page_prot);
}
static const struct proc_ops page_map_proc_ops = {
@@ -45,13 +46,35 @@ static const struct proc_ops page_map_proc_ops = {
.proc_mmap = page_map_mmap,
};
+static union {
+ struct systemcfg data;
+ u8 page[PAGE_SIZE];
+} systemcfg_data_store __page_aligned_data;
+struct systemcfg *systemcfg = &systemcfg_data_store.data;
static int __init proc_ppc64_init(void)
{
struct proc_dir_entry *pde;
+ strcpy((char *)systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
+ systemcfg->version.major = SYSTEMCFG_MAJOR;
+ systemcfg->version.minor = SYSTEMCFG_MINOR;
+ systemcfg->processor = mfspr(SPRN_PVR);
+ /*
+ * Fake the old platform number for pSeries and add
+ * in LPAR bit if necessary
+ */
+ systemcfg->platform = 0x100;
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ systemcfg->platform |= 1;
+ systemcfg->physicalMemorySize = memblock_phys_mem_size();
+ systemcfg->dcache_size = ppc64_caches.l1d.size;
+ systemcfg->dcache_line_size = ppc64_caches.l1d.line_size;
+ systemcfg->icache_size = ppc64_caches.l1i.size;
+ systemcfg->icache_line_size = ppc64_caches.l1i.line_size;
+
pde = proc_create_data("powerpc/systemcfg", S_IFREG | 0444, NULL,
- &page_map_proc_ops, vdso_data);
+ &page_map_proc_ops, systemcfg);
if (!pde)
return 1;
proc_set_size(pde, PAGE_SIZE);
@@ -60,7 +83,7 @@ static int __init proc_ppc64_init(void)
}
__initcall(proc_ppc64_init);
-#endif /* CONFIG_PPC64 */
+#endif /* CONFIG_PPC64_PROC_SYSTEMCFG */
/*
* Create the ppc64 and ppc64/rtas directories early. This allows us to
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 0be07ed407c7..88cbe432cad5 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -791,7 +791,7 @@ void __init early_init_devtree(void *params)
DBG(" -> early_init_devtree(%px)\n", params);
/* Too early to BUG_ON(), do it by hand */
- if (!early_init_dt_verify(params))
+ if (!early_init_dt_verify(params, __pa(params)))
panic("BUG: Failed verifying flat device tree, bad version?");
of_scan_flat_dt(early_init_dt_scan_model, NULL);
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index f7e86e09c49f..d31c9799cab2 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1390,21 +1390,14 @@ bool __ref rtas_busy_delay(int status)
*/
ms = clamp(ms, 1U, 1000U);
/*
- * The delay hint is an order-of-magnitude suggestion, not
- * a minimum. It is fine, possibly even advantageous, for
- * us to pause for less time than hinted. For small values,
- * use usleep_range() to ensure we don't sleep much longer
- * than actually needed.
- *
- * See Documentation/timers/timers-howto.rst for
- * explanation of the threshold used here. In effect we use
- * usleep_range() for 9900 and 9901, msleep() for
- * 9902-9905.
+ * The delay hint is an order-of-magnitude suggestion, not a
+ * minimum. It is fine, possibly even advantageous, for us to
+ * pause for less time than hinted. To make sure pause time will
+ * not be way longer than requested independent of HZ
+ * configuration, use fsleep(). See fsleep() for details of
+ * used sleeping functions.
*/
- if (ms <= 20)
- usleep_range(ms * 100, ms * 1000);
- else
- msleep(ms);
+ fsleep(ms * 1000);
break;
case RTAS_BUSY:
ret = true;
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 943430077375..0b732d3b283b 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -67,6 +67,7 @@
#include <asm/cpu_has_feature.h>
#include <asm/kasan.h>
#include <asm/mce.h>
+#include <asm/systemcfg.h>
#include "setup.h"
@@ -560,7 +561,9 @@ void __init smp_setup_cpu_maps(void)
out:
of_node_put(dn);
}
- vdso_data->processorCount = num_present_cpus();
+#endif
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
+ systemcfg->processorCount = num_present_cpus();
#endif /* CONFIG_PPC64 */
/* Initialize CPU <=> thread mapping/
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 4ab9b8cee77a..5ac7084eebc0 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -61,6 +61,7 @@
#include <asm/ftrace.h>
#include <asm/kup.h>
#include <asm/fadump.h>
+#include <asm/systemcfg.h>
#include <trace/events/ipi.h>
@@ -1186,8 +1187,8 @@ int generic_cpu_disable(void)
return -EBUSY;
set_cpu_online(cpu, false);
-#ifdef CONFIG_PPC64
- vdso_data->processorCount--;
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
+ systemcfg->processorCount--;
#endif
/* Update affinity of all IRQs previously aimed at this CPU */
irq_migrate_all_off_this_cpu();
@@ -1642,10 +1643,12 @@ void start_secondary(void *unused)
secondary_cpu_time_init();
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
if (system_state == SYSTEM_RUNNING)
- vdso_data->processorCount++;
+ systemcfg->processorCount++;
+#endif
+#ifdef CONFIG_PPC64
vdso_getcpu_init();
#endif
set_numa_node(numa_cpu_lookup_table[cpu]);
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index ebae8415dfbb..d8b4ab78bef0 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -553,3 +553,7 @@
460 common lsm_set_self_attr sys_lsm_set_self_attr
461 common lsm_list_modules sys_lsm_list_modules
462 common mseal sys_mseal
+463 common setxattrat sys_setxattrat
+464 common getxattrat sys_getxattrat
+465 common listxattrat sys_listxattrat
+466 common removexattrat sys_removexattrat
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 0ff9f038e800..0727332ad86f 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -71,11 +71,11 @@
#include <asm/vdso_datapage.h>
#include <asm/firmware.h>
#include <asm/mce.h>
+#include <asm/systemcfg.h>
/* powerpc clocksource/clockevent code */
#include <linux/clockchips.h>
-#include <linux/timekeeper_internal.h>
static u64 timebase_read(struct clocksource *);
static struct clocksource clocksource_timebase = {
@@ -951,6 +951,9 @@ void __init time_init(void)
}
vdso_data->tb_ticks_per_sec = tb_ticks_per_sec;
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
+ systemcfg->tb_ticks_per_sec = tb_ticks_per_sec;
+#endif
/* initialise and enable the large decrementer (if we have one) */
set_decrementer_max();
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c
index d8d6b4fd9a14..df41f4a7c738 100644
--- a/arch/powerpc/kernel/trace/ftrace.c
+++ b/arch/powerpc/kernel/trace/ftrace.c
@@ -421,7 +421,7 @@ int __init ftrace_dyn_arch_init(void)
void ftrace_graph_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *op, struct ftrace_regs *fregs)
{
- unsigned long sp = fregs->regs.gpr[1];
+ unsigned long sp = arch_ftrace_regs(fregs)->regs.gpr[1];
int bit;
if (unlikely(ftrace_graph_is_dead()))
@@ -439,6 +439,6 @@ void ftrace_graph_func(unsigned long ip, unsigned long parent_ip,
ftrace_test_recursion_unlock(bit);
out:
- fregs->regs.link = parent_ip;
+ arch_ftrace_regs(fregs)->regs.link = parent_ip;
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
diff --git a/arch/powerpc/kernel/trace/ftrace_64_pg.c b/arch/powerpc/kernel/trace/ftrace_64_pg.c
index 12fab1803bcf..d3c5552e4984 100644
--- a/arch/powerpc/kernel/trace/ftrace_64_pg.c
+++ b/arch/powerpc/kernel/trace/ftrace_64_pg.c
@@ -829,7 +829,7 @@ out:
void ftrace_graph_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *op, struct ftrace_regs *fregs)
{
- fregs->regs.link = __prepare_ftrace_return(parent_ip, ip, fregs->regs.gpr[1]);
+ arch_ftrace_regs(fregs)->regs.link = __prepare_ftrace_return(parent_ip, ip, arch_ftrace_regs(fregs)->regs.gpr[1]);
}
#else
unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip,
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index ee4b9d676cff..924f7f4fa597 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -16,7 +16,6 @@
#include <linux/user.h>
#include <linux/elf.h>
#include <linux/security.h>
-#include <linux/memblock.h>
#include <linux/syscalls.h>
#include <linux/time_namespace.h>
#include <vdso/datapage.h>
@@ -349,25 +348,6 @@ static struct page ** __init vdso_setup_pages(void *start, void *end)
static int __init vdso_init(void)
{
#ifdef CONFIG_PPC64
- /*
- * Fill up the "systemcfg" stuff for backward compatibility
- */
- strcpy((char *)vdso_data->eye_catcher, "SYSTEMCFG:PPC64");
- vdso_data->version.major = SYSTEMCFG_MAJOR;
- vdso_data->version.minor = SYSTEMCFG_MINOR;
- vdso_data->processor = mfspr(SPRN_PVR);
- /*
- * Fake the old platform number for pSeries and add
- * in LPAR bit if necessary
- */
- vdso_data->platform = 0x100;
- if (firmware_has_feature(FW_FEATURE_LPAR))
- vdso_data->platform |= 1;
- vdso_data->physicalMemorySize = memblock_phys_mem_size();
- vdso_data->dcache_size = ppc64_caches.l1d.size;
- vdso_data->dcache_line_size = ppc64_caches.l1d.line_size;
- vdso_data->icache_size = ppc64_caches.l1i.size;
- vdso_data->icache_line_size = ppc64_caches.l1i.line_size;
vdso_data->dcache_block_size = ppc64_caches.l1d.block_size;
vdso_data->icache_block_size = ppc64_caches.l1i.block_size;
vdso_data->dcache_log_block_size = ppc64_caches.l1d.log_block_size;
generated by cgit (git 2.34.1) at 2025-05-29 11:49:17 +0000