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-rw-r--r--arch/arm64/boot/dts/apm-storm.dtsi75
-rw-r--r--arch/arm64/include/asm/atomic.h14
-rw-r--r--arch/arm64/include/asm/prom.h1
-rw-r--r--arch/arm64/kernel/debug-monitors.c13
-rw-r--r--arch/arm64/kernel/hw_breakpoint.c22
-rw-r--r--arch/arm64/kernel/module.c2
-rw-r--r--arch/arm64/kernel/perf_event.c4
-rw-r--r--arch/arm64/kernel/setup.c60
-rw-r--r--arch/arm64/kernel/signal32.c2
-rw-r--r--arch/arm64/mm/init.c25
10 files changed, 106 insertions, 112 deletions
diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
index bfdc5783492..d37d7369e26 100644
--- a/arch/arm64/boot/dts/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm-storm.dtsi
@@ -103,6 +103,81 @@
#size-cells = <2>;
ranges;
+ clocks {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ refclk: refclk {
+ compatible = "fixed-clock";
+ #clock-cells = <1>;
+ clock-frequency = <100000000>;
+ clock-output-names = "refclk";
+ };
+
+ pcppll: pcppll@17000100 {
+ compatible = "apm,xgene-pcppll-clock";
+ #clock-cells = <1>;
+ clocks = <&refclk 0>;
+ clock-names = "pcppll";
+ reg = <0x0 0x17000100 0x0 0x1000>;
+ clock-output-names = "pcppll";
+ type = <0>;
+ };
+
+ socpll: socpll@17000120 {
+ compatible = "apm,xgene-socpll-clock";
+ #clock-cells = <1>;
+ clocks = <&refclk 0>;
+ clock-names = "socpll";
+ reg = <0x0 0x17000120 0x0 0x1000>;
+ clock-output-names = "socpll";
+ type = <1>;
+ };
+
+ socplldiv2: socplldiv2 {
+ compatible = "fixed-factor-clock";
+ #clock-cells = <1>;
+ clocks = <&socpll 0>;
+ clock-names = "socplldiv2";
+ clock-mult = <1>;
+ clock-div = <2>;
+ clock-output-names = "socplldiv2";
+ };
+
+ qmlclk: qmlclk {
+ compatible = "apm,xgene-device-clock";
+ #clock-cells = <1>;
+ clocks = <&socplldiv2 0>;
+ clock-names = "qmlclk";
+ reg = <0x0 0x1703C000 0x0 0x1000>;
+ reg-names = "csr-reg";
+ clock-output-names = "qmlclk";
+ };
+
+ ethclk: ethclk {
+ compatible = "apm,xgene-device-clock";
+ #clock-cells = <1>;
+ clocks = <&socplldiv2 0>;
+ clock-names = "ethclk";
+ reg = <0x0 0x17000000 0x0 0x1000>;
+ reg-names = "div-reg";
+ divider-offset = <0x238>;
+ divider-width = <0x9>;
+ divider-shift = <0x0>;
+ clock-output-names = "ethclk";
+ };
+
+ eth8clk: eth8clk {
+ compatible = "apm,xgene-device-clock";
+ #clock-cells = <1>;
+ clocks = <&ethclk 0>;
+ clock-names = "eth8clk";
+ reg = <0x0 0x1702C000 0x0 0x1000>;
+ reg-names = "csr-reg";
+ clock-output-names = "eth8clk";
+ };
+ };
+
serial0: serial@1c020000 {
device_type = "serial";
compatible = "ns16550";
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index 83636446857..01de5aaa3ed 100644
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -126,20 +126,6 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
return oldval;
}
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
-{
- unsigned long tmp, tmp2;
-
- asm volatile("// atomic_clear_mask\n"
-"1: ldxr %0, %2\n"
-" bic %0, %0, %3\n"
-" stxr %w1, %0, %2\n"
-" cbnz %w1, 1b"
- : "=&r" (tmp), "=&r" (tmp2), "+Q" (*addr)
- : "Ir" (mask)
- : "cc");
-}
-
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
static inline int __atomic_add_unless(atomic_t *v, int a, int u)
diff --git a/arch/arm64/include/asm/prom.h b/arch/arm64/include/asm/prom.h
deleted file mode 100644
index 68b90e68295..00000000000
--- a/arch/arm64/include/asm/prom.h
+++ /dev/null
@@ -1 +0,0 @@
-/* Empty for now */
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index cbfacf7fb43..6a0a9b132d7 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -27,7 +27,6 @@
#include <linux/uaccess.h>
#include <asm/debug-monitors.h>
-#include <asm/local.h>
#include <asm/cputype.h>
#include <asm/system_misc.h>
@@ -89,8 +88,8 @@ early_param("nodebugmon", early_debug_disable);
* Keep track of debug users on each core.
* The ref counts are per-cpu so we use a local_t type.
*/
-static DEFINE_PER_CPU(local_t, mde_ref_count);
-static DEFINE_PER_CPU(local_t, kde_ref_count);
+static DEFINE_PER_CPU(int, mde_ref_count);
+static DEFINE_PER_CPU(int, kde_ref_count);
void enable_debug_monitors(enum debug_el el)
{
@@ -98,11 +97,11 @@ void enable_debug_monitors(enum debug_el el)
WARN_ON(preemptible());
- if (local_inc_return(&__get_cpu_var(mde_ref_count)) == 1)
+ if (this_cpu_inc_return(mde_ref_count) == 1)
enable = DBG_MDSCR_MDE;
if (el == DBG_ACTIVE_EL1 &&
- local_inc_return(&__get_cpu_var(kde_ref_count)) == 1)
+ this_cpu_inc_return(kde_ref_count) == 1)
enable |= DBG_MDSCR_KDE;
if (enable && debug_enabled) {
@@ -118,11 +117,11 @@ void disable_debug_monitors(enum debug_el el)
WARN_ON(preemptible());
- if (local_dec_and_test(&__get_cpu_var(mde_ref_count)))
+ if (this_cpu_dec_return(mde_ref_count) == 0)
disable = ~DBG_MDSCR_MDE;
if (el == DBG_ACTIVE_EL1 &&
- local_dec_and_test(&__get_cpu_var(kde_ref_count)))
+ this_cpu_dec_return(kde_ref_count) == 0)
disable &= ~DBG_MDSCR_KDE;
if (disable) {
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 329218ca9ff..ff516f6691e 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -184,14 +184,14 @@ int arch_install_hw_breakpoint(struct perf_event *bp)
/* Breakpoint */
ctrl_reg = AARCH64_DBG_REG_BCR;
val_reg = AARCH64_DBG_REG_BVR;
- slots = __get_cpu_var(bp_on_reg);
+ slots = this_cpu_ptr(bp_on_reg);
max_slots = core_num_brps;
reg_enable = !debug_info->bps_disabled;
} else {
/* Watchpoint */
ctrl_reg = AARCH64_DBG_REG_WCR;
val_reg = AARCH64_DBG_REG_WVR;
- slots = __get_cpu_var(wp_on_reg);
+ slots = this_cpu_ptr(wp_on_reg);
max_slots = core_num_wrps;
reg_enable = !debug_info->wps_disabled;
}
@@ -230,12 +230,12 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE) {
/* Breakpoint */
base = AARCH64_DBG_REG_BCR;
- slots = __get_cpu_var(bp_on_reg);
+ slots = this_cpu_ptr(bp_on_reg);
max_slots = core_num_brps;
} else {
/* Watchpoint */
base = AARCH64_DBG_REG_WCR;
- slots = __get_cpu_var(wp_on_reg);
+ slots = this_cpu_ptr(wp_on_reg);
max_slots = core_num_wrps;
}
@@ -505,11 +505,11 @@ static void toggle_bp_registers(int reg, enum debug_el el, int enable)
switch (reg) {
case AARCH64_DBG_REG_BCR:
- slots = __get_cpu_var(bp_on_reg);
+ slots = this_cpu_ptr(bp_on_reg);
max_slots = core_num_brps;
break;
case AARCH64_DBG_REG_WCR:
- slots = __get_cpu_var(wp_on_reg);
+ slots = this_cpu_ptr(wp_on_reg);
max_slots = core_num_wrps;
break;
default:
@@ -546,7 +546,7 @@ static int breakpoint_handler(unsigned long unused, unsigned int esr,
struct debug_info *debug_info;
struct arch_hw_breakpoint_ctrl ctrl;
- slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
+ slots = this_cpu_ptr(bp_on_reg);
addr = instruction_pointer(regs);
debug_info = &current->thread.debug;
@@ -596,7 +596,7 @@ unlock:
user_enable_single_step(current);
} else {
toggle_bp_registers(AARCH64_DBG_REG_BCR, DBG_ACTIVE_EL1, 0);
- kernel_step = &__get_cpu_var(stepping_kernel_bp);
+ kernel_step = this_cpu_ptr(&stepping_kernel_bp);
if (*kernel_step != ARM_KERNEL_STEP_NONE)
return 0;
@@ -623,7 +623,7 @@ static int watchpoint_handler(unsigned long addr, unsigned int esr,
struct arch_hw_breakpoint *info;
struct arch_hw_breakpoint_ctrl ctrl;
- slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+ slots = this_cpu_ptr(wp_on_reg);
debug_info = &current->thread.debug;
for (i = 0; i < core_num_wrps; ++i) {
@@ -698,7 +698,7 @@ unlock:
user_enable_single_step(current);
} else {
toggle_bp_registers(AARCH64_DBG_REG_WCR, DBG_ACTIVE_EL1, 0);
- kernel_step = &__get_cpu_var(stepping_kernel_bp);
+ kernel_step = this_cpu_ptr(&stepping_kernel_bp);
if (*kernel_step != ARM_KERNEL_STEP_NONE)
return 0;
@@ -722,7 +722,7 @@ int reinstall_suspended_bps(struct pt_regs *regs)
struct debug_info *debug_info = &current->thread.debug;
int handled_exception = 0, *kernel_step;
- kernel_step = &__get_cpu_var(stepping_kernel_bp);
+ kernel_step = this_cpu_ptr(&stepping_kernel_bp);
/*
* Called from single-step exception handler.
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 2c28a6cf93e..e2ad0d87721 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -29,7 +29,7 @@
void *module_alloc(unsigned long size)
{
return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
- GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+ GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
__builtin_return_address(0));
}
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 5d14470452a..0e63c98d224 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1044,7 +1044,7 @@ static irqreturn_t armv8pmu_handle_irq(int irq_num, void *dev)
*/
regs = get_irq_regs();
- cpuc = &__get_cpu_var(cpu_hw_events);
+ cpuc = this_cpu_ptr(&cpu_hw_events);
for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
@@ -1258,7 +1258,7 @@ device_initcall(register_pmu_driver);
static struct pmu_hw_events *armpmu_get_cpu_events(void)
{
- return &__get_cpu_var(cpu_hw_events);
+ return this_cpu_ptr(&cpu_hw_events);
}
static void __init cpu_pmu_init(struct arm_pmu *armpmu)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 47905598d79..0bc5e4cbc01 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -140,70 +140,18 @@ static void __init setup_processor(void)
static void __init setup_machine_fdt(phys_addr_t dt_phys)
{
- struct boot_param_header *devtree;
- unsigned long dt_root;
-
- /* Check we have a non-NULL DT pointer */
- if (!dt_phys) {
- early_print("\n"
- "Error: NULL or invalid device tree blob\n"
- "The dtb must be 8-byte aligned and passed in the first 512MB of memory\n"
- "\nPlease check your bootloader.\n");
-
- while (true)
- cpu_relax();
-
- }
-
- devtree = phys_to_virt(dt_phys);
-
- /* Check device tree validity */
- if (be32_to_cpu(devtree->magic) != OF_DT_HEADER) {
+ if (!dt_phys || !early_init_dt_scan(phys_to_virt(dt_phys))) {
early_print("\n"
"Error: invalid device tree blob at physical address 0x%p (virtual address 0x%p)\n"
- "Expected 0x%x, found 0x%x\n"
+ "The dtb must be 8-byte aligned and passed in the first 512MB of memory\n"
"\nPlease check your bootloader.\n",
- dt_phys, devtree, OF_DT_HEADER,
- be32_to_cpu(devtree->magic));
+ dt_phys, phys_to_virt(dt_phys));
while (true)
cpu_relax();
}
- initial_boot_params = devtree;
- dt_root = of_get_flat_dt_root();
-
- machine_name = of_get_flat_dt_prop(dt_root, "model", NULL);
- if (!machine_name)
- machine_name = of_get_flat_dt_prop(dt_root, "compatible", NULL);
- if (!machine_name)
- machine_name = "<unknown>";
- pr_info("Machine: %s\n", machine_name);
-
- /* Retrieve various information from the /chosen node */
- of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
- /* Initialize {size,address}-cells info */
- of_scan_flat_dt(early_init_dt_scan_root, NULL);
- /* Setup memory, calling early_init_dt_add_memory_arch */
- of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-}
-
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
- base &= PAGE_MASK;
- size &= PAGE_MASK;
- if (base + size < PHYS_OFFSET) {
- pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
- base, base + size);
- return;
- }
- if (base < PHYS_OFFSET) {
- pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
- base, PHYS_OFFSET);
- size -= PHYS_OFFSET - base;
- base = PHYS_OFFSET;
- }
- memblock_add(base, size);
+ machine_name = of_flat_dt_get_machine_name();
}
/*
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index e51bbe79f5b..b3fc9f5ec6d 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -122,7 +122,7 @@ static inline int get_sigset_t(sigset_t *set,
return 0;
}
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
{
int err;
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index de2de5db628..0cb8742de4f 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -31,7 +31,6 @@
#include <linux/sort.h>
#include <linux/of_fdt.h>
-#include <asm/prom.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/sizes.h>
@@ -39,17 +38,9 @@
#include "mm.h"
-static unsigned long phys_initrd_start __initdata = 0;
-static unsigned long phys_initrd_size __initdata = 0;
-
phys_addr_t memstart_addr __read_mostly = 0;
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
- phys_initrd_start = start;
- phys_initrd_size = end - start;
-}
-
+#ifdef CONFIG_BLK_DEV_INITRD
static int __init early_initrd(char *p)
{
unsigned long start, size;
@@ -59,12 +50,13 @@ static int __init early_initrd(char *p)
if (*endp == ',') {
size = memparse(endp + 1, NULL);
- phys_initrd_start = start;
- phys_initrd_size = size;
+ initrd_start = (unsigned long)__va(start);
+ initrd_end = (unsigned long)__va(start + size);
}
return 0;
}
early_param("initrd", early_initrd);
+#endif
#define MAX_DMA32_PFN ((4UL * 1024 * 1024 * 1024) >> PAGE_SHIFT)
@@ -137,13 +129,8 @@ void __init arm64_memblock_init(void)
/* Register the kernel text, kernel data and initrd with memblock */
memblock_reserve(__pa(_text), _end - _text);
#ifdef CONFIG_BLK_DEV_INITRD
- if (phys_initrd_size) {
- memblock_reserve(phys_initrd_start, phys_initrd_size);
-
- /* Now convert initrd to virtual addresses */
- initrd_start = __phys_to_virt(phys_initrd_start);
- initrd_end = initrd_start + phys_initrd_size;
- }
+ if (initrd_start)
+ memblock_reserve(__virt_to_phys(initrd_start), initrd_end - initrd_start);
#endif
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 07:42:19 +0000