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-rw-r--r--arch/sparc/kernel/auxio_32.c2
-rw-r--r--arch/sparc/kernel/cpu.c2
-rw-r--r--arch/sparc/kernel/head_32.S3
-rw-r--r--arch/sparc/kernel/leon_kernel.c114
-rw-r--r--arch/sparc/kernel/module.c14
-rw-r--r--arch/sparc/kernel/nmi.c2
-rw-r--r--arch/sparc/kernel/pcr.c2
-rw-r--r--arch/sparc/kernel/perf_event.c9
-rw-r--r--arch/sparc/kernel/prom_32.c27
-rw-r--r--arch/sparc/kernel/setup_32.c3
-rw-r--r--arch/sparc/kernel/starfire.c2
-rw-r--r--arch/sparc/kernel/traps_64.c2
12 files changed, 133 insertions, 49 deletions
diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c
index 35f48837871a..8505e0ac78ba 100644
--- a/arch/sparc/kernel/auxio_32.c
+++ b/arch/sparc/kernel/auxio_32.c
@@ -121,7 +121,7 @@ void __init auxio_power_probe(void)
node = prom_searchsiblings(node, "obio");
node = prom_getchild(node);
node = prom_searchsiblings(node, "power");
- if (node == 0 || node == -1)
+ if (node == 0 || (s32)node == -1)
return;
/* Map the power control register. */
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index e447938d39cf..0dc714fa23d8 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -375,5 +375,5 @@ static int __init cpu_type_probe(void)
return 0;
}
-arch_initcall(cpu_type_probe);
+early_initcall(cpu_type_probe);
#endif
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index 21bb2590d4ae..59423491cef8 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -73,12 +73,11 @@ sun4e_notsup:
/* The Sparc trap table, bootloader gives us control at _start. */
__HEAD
- .globl start, _stext, _start, __stext
+ .globl _stext, _start, __stext
.globl trapbase
_start: /* danger danger */
__stext:
_stext:
-start:
trapbase:
#ifdef CONFIG_SMP
trapbase_cpu0:
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 2d51527d810f..fdab7f854f80 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -23,15 +23,16 @@
#include "prom.h"
#include "irq.h"
-struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; /* interrupt controller base address, initialized by amba_init() */
-struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base address, initialized by amba_init() */
+struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; /* interrupt controller base address */
+struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base address */
struct amba_apb_device leon_percpu_timer_dev[16];
int leondebug_irq_disable;
int leon_debug_irqout;
static int dummy_master_l10_counter;
-unsigned long leon3_gptimer_irq; /* interrupt controller irq number, initialized by amba_init() */
+unsigned long leon3_gptimer_irq; /* interrupt controller irq number */
+unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */
unsigned int sparc_leon_eirq;
#define LEON_IMASK ((&leon3_irqctrl_regs->mask[0]))
@@ -105,21 +106,79 @@ static void leon_disable_irq(unsigned int irq_nr)
void __init leon_init_timers(irq_handler_t counter_fn)
{
int irq;
+ struct device_node *rootnp, *np, *nnp;
+ struct property *pp;
+ int len;
+ int cpu, icsel;
+ int ampopts;
leondebug_irq_disable = 0;
leon_debug_irqout = 0;
master_l10_counter = (unsigned int *)&dummy_master_l10_counter;
dummy_master_l10_counter = 0;
- if (leon3_gptimer_regs && leon3_irqctrl_regs) {
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].val, 0);
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].rld,
- (((1000000 / 100) - 1)));
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0);
+ /*Find IRQMP IRQ Controller Registers base address otherwise bail out.*/
+ rootnp = of_find_node_by_path("/ambapp0");
+ if (!rootnp)
+ goto bad;
+ np = of_find_node_by_name(rootnp, "GAISLER_IRQMP");
+ if (!np) {
+ np = of_find_node_by_name(rootnp, "01_00d");
+ if (!np)
+ goto bad;
+ }
+ pp = of_find_property(np, "reg", &len);
+ if (!pp)
+ goto bad;
+ leon3_irqctrl_regs = *(struct leon3_irqctrl_regs_map **)pp->value;
+
+ /* Find GPTIMER Timer Registers base address otherwise bail out. */
+ nnp = rootnp;
+ do {
+ np = of_find_node_by_name(nnp, "GAISLER_GPTIMER");
+ if (!np) {
+ np = of_find_node_by_name(nnp, "01_011");
+ if (!np)
+ goto bad;
+ }
+
+ ampopts = 0;
+ pp = of_find_property(np, "ampopts", &len);
+ if (pp) {
+ ampopts = *(int *)pp->value;
+ if (ampopts == 0) {
+ /* Skip this instance, resource already
+ * allocated by other OS */
+ nnp = np;
+ continue;
+ }
+ }
+
+ /* Select Timer-Instance on Timer Core. Default is zero */
+ leon3_gptimer_idx = ampopts & 0x7;
+
+ pp = of_find_property(np, "reg", &len);
+ if (pp)
+ leon3_gptimer_regs = *(struct leon3_gptimer_regs_map **)
+ pp->value;
+ pp = of_find_property(np, "interrupts", &len);
+ if (pp)
+ leon3_gptimer_irq = *(unsigned int *)pp->value;
+ } while (0);
+
+ if (leon3_gptimer_regs && leon3_irqctrl_regs && leon3_gptimer_irq) {
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx].val, 0);
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx].rld,
+ (((1000000 / HZ) - 1)));
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, 0);
#ifdef CONFIG_SMP
leon_percpu_timer_dev[0].start = (int)leon3_gptimer_regs;
- leon_percpu_timer_dev[0].irq = leon3_gptimer_irq+1;
+ leon_percpu_timer_dev[0].irq = leon3_gptimer_irq + 1 +
+ leon3_gptimer_idx;
if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
(1<<LEON3_GPTIMER_SEPIRQ))) {
@@ -127,17 +186,33 @@ void __init leon_init_timers(irq_handler_t counter_fn)
BUG();
}
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0);
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1)));
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0);
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx+1].val, 0);
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld,
+ (((1000000/HZ) - 1)));
+ LEON3_BYPASS_STORE_PA(
+ &leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, 0);
# endif
+ /*
+ * The IRQ controller may (if implemented) consist of multiple
+ * IRQ controllers, each mapped on a 4Kb boundary.
+ * Each CPU may be routed to different IRQCTRLs, however
+ * we assume that all CPUs (in SMP system) is routed to the
+ * same IRQ Controller, and for non-SMP only one IRQCTRL is
+ * accessed anyway.
+ * In AMP systems, Linux must run on CPU0 for the time being.
+ */
+ cpu = sparc_leon3_cpuid();
+ icsel = LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->icsel[cpu/8]);
+ icsel = (icsel >> ((7 - (cpu&0x7)) * 4)) & 0xf;
+ leon3_irqctrl_regs += icsel;
} else {
- printk(KERN_ERR "No Timer/irqctrl found\n");
- BUG();
+ goto bad;
}
- irq = request_irq(leon3_gptimer_irq,
+ irq = request_irq(leon3_gptimer_irq+leon3_gptimer_idx,
counter_fn,
(IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL);
@@ -169,13 +244,13 @@ void __init leon_init_timers(irq_handler_t counter_fn)
# endif
if (leon3_gptimer_regs) {
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl,
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl,
LEON3_GPTIMER_EN |
LEON3_GPTIMER_RL |
LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
#ifdef CONFIG_SMP
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl,
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl,
LEON3_GPTIMER_EN |
LEON3_GPTIMER_RL |
LEON3_GPTIMER_LD |
@@ -183,6 +258,11 @@ void __init leon_init_timers(irq_handler_t counter_fn)
#endif
}
+ return;
+bad:
+ printk(KERN_ERR "No Timer/irqctrl found\n");
+ BUG();
+ return;
}
void leon_clear_clock_irq(void)
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index ee3c7dde8d9f..8d348c474a2f 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -23,17 +23,11 @@
static void *module_map(unsigned long size)
{
- struct vm_struct *area;
-
- size = PAGE_ALIGN(size);
- if (!size || size > MODULES_LEN)
- return NULL;
-
- area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
- if (!area)
+ if (PAGE_ALIGN(size) > MODULES_LEN)
return NULL;
-
- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
+ return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+ GFP_KERNEL, PAGE_KERNEL, -1,
+ __builtin_return_address(0));
}
static char *dot2underscore(char *name)
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index a4bd7ba74c89..300f810142f5 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -270,8 +270,6 @@ int __init nmi_init(void)
atomic_set(&nmi_active, -1);
}
}
- if (!err)
- init_hw_perf_events();
return err;
}
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c
index b87873c0e8ea..ae96cf52a955 100644
--- a/arch/sparc/kernel/pcr.c
+++ b/arch/sparc/kernel/pcr.c
@@ -168,4 +168,4 @@ out_unregister:
return err;
}
-arch_initcall(pcr_arch_init);
+early_initcall(pcr_arch_init);
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 0d6deb55a2ae..760578687e7c 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1307,20 +1307,23 @@ static bool __init supported_pmu(void)
return false;
}
-void __init init_hw_perf_events(void)
+int __init init_hw_perf_events(void)
{
pr_info("Performance events: ");
if (!supported_pmu()) {
pr_cont("No support for PMU type '%s'\n", sparc_pmu_type);
- return;
+ return 0;
}
pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type);
- perf_pmu_register(&pmu);
+ perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
register_die_notifier(&perf_event_nmi_notifier);
+
+ return 0;
}
+early_initcall(init_hw_perf_events);
void perf_callchain_kernel(struct perf_callchain_entry *entry,
struct pt_regs *regs)
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index 0a37e8cfd160..05fb25330583 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -136,18 +136,29 @@ static void __init ebus_path_component(struct device_node *dp, char *tmp_buf)
/* "name:vendor:device@irq,addrlo" */
static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf)
{
- struct amba_prom_registers *regs; unsigned int *intr;
- unsigned int *device, *vendor;
+ struct amba_prom_registers *regs;
+ unsigned int *intr, *device, *vendor, reg0;
struct property *prop;
+ int interrupt = 0;
+ /* In order to get a unique ID in the device tree (multiple AMBA devices
+ * may have the same name) the node number is printed
+ */
prop = of_find_property(dp, "reg", NULL);
- if (!prop)
- return;
- regs = prop->value;
+ if (!prop) {
+ reg0 = (unsigned int)dp->phandle;
+ } else {
+ regs = prop->value;
+ reg0 = regs->phys_addr;
+ }
+
+ /* Not all cores have Interrupt */
prop = of_find_property(dp, "interrupts", NULL);
if (!prop)
- return;
- intr = prop->value;
+ intr = &interrupt; /* IRQ0 does not exist */
+ else
+ intr = prop->value;
+
prop = of_find_property(dp, "vendor", NULL);
if (!prop)
return;
@@ -159,7 +170,7 @@ static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf)
sprintf(tmp_buf, "%s:%d:%d@%x,%x",
dp->name, *vendor, *device,
- *intr, regs->phys_addr);
+ *intr, reg0);
}
static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index b22ce6100403..648f2161b851 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -185,7 +185,6 @@ static void __init boot_flags_init(char *commands)
extern void sun4c_probe_vac(void);
extern char cputypval;
-extern unsigned long start, end;
extern unsigned short root_flags;
extern unsigned short root_dev;
@@ -210,7 +209,7 @@ void __init setup_arch(char **cmdline_p)
int i;
unsigned long highest_paddr;
- sparc_ttable = (struct tt_entry *) &start;
+ sparc_ttable = (struct tt_entry *) &trapbase;
/* Initialize PROM console and command line. */
*cmdline_p = prom_getbootargs();
diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c
index a4446c0fb7a1..82281a566bb8 100644
--- a/arch/sparc/kernel/starfire.c
+++ b/arch/sparc/kernel/starfire.c
@@ -24,7 +24,7 @@ int this_is_starfire = 0;
void check_if_starfire(void)
{
phandle ssnode = prom_finddevice("/ssp-serial");
- if (ssnode != 0 && ssnode != -1)
+ if (ssnode != 0 && (s32)ssnode != -1)
this_is_starfire = 1;
}
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 42ad2ba85010..1e9770936c3b 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -622,7 +622,7 @@ static const char CHAFSR_PERR_msg[] =
static const char CHAFSR_IERR_msg[] =
"Internal processor error";
static const char CHAFSR_ISAP_msg[] =
- "System request parity error on incoming addresss";
+ "System request parity error on incoming address";
static const char CHAFSR_UCU_msg[] =
"Uncorrectable E-cache ECC error for ifetch/data";
static const char CHAFSR_UCC_msg[] =
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.