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-rw-r--r--arch/loongarch/kernel/cpu-probe.c4
-rw-r--r--arch/loongarch/kernel/kexec_efi.c2
-rw-r--r--arch/loongarch/kernel/kexec_elf.c2
-rw-r--r--arch/loongarch/kernel/machine_kexec.c22
-rw-r--r--arch/loongarch/kernel/machine_kexec_file.c2
-rw-r--r--arch/loongarch/kernel/mem.c7
-rw-r--r--arch/loongarch/kernel/numa.c23
-rw-r--r--arch/loongarch/kernel/perf_event.c7
-rw-r--r--arch/loongarch/kernel/setup.c5
-rw-r--r--arch/loongarch/kernel/traps.c4
10 files changed, 20 insertions, 58 deletions
diff --git a/arch/loongarch/kernel/cpu-probe.c b/arch/loongarch/kernel/cpu-probe.c
index cbfce2872d71..6f943d1391ff 100644
--- a/arch/loongarch/kernel/cpu-probe.c
+++ b/arch/loongarch/kernel/cpu-probe.c
@@ -157,6 +157,8 @@ static void cpu_probe_common(struct cpuinfo_loongarch *c)
c->options |= LOONGARCH_CPU_TLB;
if (config & CPUCFG1_IOCSR)
c->options |= LOONGARCH_CPU_IOCSR;
+ if (config & CPUCFG1_MSGINT)
+ c->options |= LOONGARCH_CPU_MSGINT;
if (config & CPUCFG1_UAL) {
c->options |= LOONGARCH_CPU_UAL;
elf_hwcap |= HWCAP_LOONGARCH_UAL;
@@ -331,6 +333,8 @@ static inline void cpu_probe_loongson(struct cpuinfo_loongarch *c, unsigned int
c->options |= LOONGARCH_CPU_EIODECODE;
if (config & IOCSRF_AVEC)
c->options |= LOONGARCH_CPU_AVECINT;
+ if (config & IOCSRF_REDIRECT)
+ c->options |= LOONGARCH_CPU_REDIRECTINT;
if (config & IOCSRF_VM)
c->options |= LOONGARCH_CPU_HYPERVISOR;
}
diff --git a/arch/loongarch/kernel/kexec_efi.c b/arch/loongarch/kernel/kexec_efi.c
index 45121b914f8f..5ee78ebb1546 100644
--- a/arch/loongarch/kernel/kexec_efi.c
+++ b/arch/loongarch/kernel/kexec_efi.c
@@ -42,7 +42,7 @@ static void *efi_kexec_load(struct kimage *image,
{
int ret;
unsigned long text_offset, kernel_segment_number;
- struct kexec_buf kbuf;
+ struct kexec_buf kbuf = {};
struct kexec_segment *kernel_segment;
struct loongarch_image_header *h;
diff --git a/arch/loongarch/kernel/kexec_elf.c b/arch/loongarch/kernel/kexec_elf.c
index 97b2f049801a..1b6b64744c7f 100644
--- a/arch/loongarch/kernel/kexec_elf.c
+++ b/arch/loongarch/kernel/kexec_elf.c
@@ -59,7 +59,7 @@ static void *elf_kexec_load(struct kimage *image,
int ret;
unsigned long text_offset, kernel_segment_number;
struct elfhdr ehdr;
- struct kexec_buf kbuf;
+ struct kexec_buf kbuf = {};
struct kexec_elf_info elf_info;
struct kexec_segment *kernel_segment;
diff --git a/arch/loongarch/kernel/machine_kexec.c b/arch/loongarch/kernel/machine_kexec.c
index e4b2bbc47e62..2d64b7c81e5e 100644
--- a/arch/loongarch/kernel/machine_kexec.c
+++ b/arch/loongarch/kernel/machine_kexec.c
@@ -39,34 +39,12 @@ static unsigned long systable_ptr;
static unsigned long start_addr;
static unsigned long first_ind_entry;
-static void kexec_image_info(const struct kimage *kimage)
-{
- unsigned long i;
-
- pr_debug("kexec kimage info:\n");
- pr_debug("\ttype: %d\n", kimage->type);
- pr_debug("\tstart: %lx\n", kimage->start);
- pr_debug("\thead: %lx\n", kimage->head);
- pr_debug("\tnr_segments: %lu\n", kimage->nr_segments);
-
- for (i = 0; i < kimage->nr_segments; i++) {
- pr_debug("\t segment[%lu]: %016lx - %016lx", i,
- kimage->segment[i].mem,
- kimage->segment[i].mem + kimage->segment[i].memsz);
- pr_debug("\t\t0x%lx bytes, %lu pages\n",
- (unsigned long)kimage->segment[i].memsz,
- (unsigned long)kimage->segment[i].memsz / PAGE_SIZE);
- }
-}
-
int machine_kexec_prepare(struct kimage *kimage)
{
int i;
char *bootloader = "kexec";
void *cmdline_ptr = (void *)KEXEC_CMDLINE_ADDR;
- kexec_image_info(kimage);
-
kimage->arch.efi_boot = fw_arg0;
kimage->arch.systable_ptr = fw_arg2;
diff --git a/arch/loongarch/kernel/machine_kexec_file.c b/arch/loongarch/kernel/machine_kexec_file.c
index dda236b51a88..fb57026f5f25 100644
--- a/arch/loongarch/kernel/machine_kexec_file.c
+++ b/arch/loongarch/kernel/machine_kexec_file.c
@@ -143,7 +143,7 @@ int load_other_segments(struct kimage *image,
unsigned long initrd_load_addr = 0;
unsigned long orig_segments = image->nr_segments;
char *modified_cmdline = NULL;
- struct kexec_buf kbuf;
+ struct kexec_buf kbuf = {};
kbuf.image = image;
/* Don't allocate anything below the kernel */
diff --git a/arch/loongarch/kernel/mem.c b/arch/loongarch/kernel/mem.c
index aed901c57fb4..8ab1ffedc52c 100644
--- a/arch/loongarch/kernel/mem.c
+++ b/arch/loongarch/kernel/mem.c
@@ -13,7 +13,7 @@
void __init memblock_init(void)
{
u32 mem_type;
- u64 mem_start, mem_end, mem_size;
+ u64 mem_start, mem_size;
efi_memory_desc_t *md;
/* Parse memory information */
@@ -21,7 +21,6 @@ void __init memblock_init(void)
mem_type = md->type;
mem_start = md->phys_addr;
mem_size = md->num_pages << EFI_PAGE_SHIFT;
- mem_end = mem_start + mem_size;
switch (mem_type) {
case EFI_LOADER_CODE:
@@ -31,8 +30,6 @@ void __init memblock_init(void)
case EFI_PERSISTENT_MEMORY:
case EFI_CONVENTIONAL_MEMORY:
memblock_add(mem_start, mem_size);
- if (max_low_pfn < (mem_end >> PAGE_SHIFT))
- max_low_pfn = mem_end >> PAGE_SHIFT;
break;
case EFI_PAL_CODE:
case EFI_UNUSABLE_MEMORY:
@@ -49,6 +46,8 @@ void __init memblock_init(void)
}
}
+ max_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
memblock_set_current_limit(PFN_PHYS(max_low_pfn));
/* Reserve the first 2MB */
diff --git a/arch/loongarch/kernel/numa.c b/arch/loongarch/kernel/numa.c
index d6e73e8f9c0b..ab9c660526a3 100644
--- a/arch/loongarch/kernel/numa.c
+++ b/arch/loongarch/kernel/numa.c
@@ -272,7 +272,8 @@ int __init init_numa_memory(void)
node_mem_init(node);
node_set_online(node);
}
- max_low_pfn = PHYS_PFN(memblock_end_of_DRAM());
+ max_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
setup_nr_node_ids();
loongson_sysconf.nr_nodes = nr_node_ids;
@@ -283,26 +284,6 @@ int __init init_numa_memory(void)
#endif
-void __init paging_init(void)
-{
- unsigned int node;
- unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
- for_each_online_node(node) {
- unsigned long start_pfn, end_pfn;
-
- get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
-
- if (end_pfn > max_low_pfn)
- max_low_pfn = end_pfn;
- }
-#ifdef CONFIG_ZONE_DMA32
- zones_size[ZONE_DMA32] = MAX_DMA32_PFN;
-#endif
- zones_size[ZONE_NORMAL] = max_low_pfn;
- free_area_init(zones_size);
-}
-
int pcibus_to_node(struct pci_bus *bus)
{
return dev_to_node(&bus->dev);
diff --git a/arch/loongarch/kernel/perf_event.c b/arch/loongarch/kernel/perf_event.c
index 8ad098703488..9d257c8519c9 100644
--- a/arch/loongarch/kernel/perf_event.c
+++ b/arch/loongarch/kernel/perf_event.c
@@ -845,13 +845,14 @@ static const struct loongarch_perf_event *loongarch_pmu_map_raw_event(u64 config
static int __init init_hw_perf_events(void)
{
- int counters;
+ int bits, counters;
if (!cpu_has_pmp)
return -ENODEV;
pr_info("Performance counters: ");
- counters = ((read_cpucfg(LOONGARCH_CPUCFG6) & CPUCFG6_PMNUM) >> 4) + 1;
+ bits = ((read_cpucfg(LOONGARCH_CPUCFG6) & CPUCFG6_PMBITS) >> CPUCFG6_PMBITS_SHIFT) + 1;
+ counters = ((read_cpucfg(LOONGARCH_CPUCFG6) & CPUCFG6_PMNUM) >> CPUCFG6_PMNUM_SHIFT) + 1;
loongarch_pmu.num_counters = counters;
loongarch_pmu.max_period = (1ULL << 63) - 1;
@@ -867,7 +868,7 @@ static int __init init_hw_perf_events(void)
on_each_cpu(reset_counters, NULL, 1);
pr_cont("%s PMU enabled, %d %d-bit counters available to each CPU.\n",
- loongarch_pmu.name, counters, 64);
+ loongarch_pmu.name, counters, bits);
perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 69c17d162fff..25a87378e48e 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -294,8 +294,6 @@ static void __init fdt_setup(void)
early_init_dt_scan(fdt_pointer, __pa(fdt_pointer));
early_init_fdt_reserve_self();
-
- max_low_pfn = PFN_PHYS(memblock_end_of_DRAM());
#endif
}
@@ -390,7 +388,8 @@ static void __init check_kernel_sections_mem(void)
static void __init arch_mem_init(char **cmdline_p)
{
/* Recalculate max_low_pfn for "mem=xxx" */
- max_pfn = max_low_pfn = PHYS_PFN(memblock_end_of_DRAM());
+ max_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
if (usermem)
pr_info("User-defined physical RAM map overwrite\n");
diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index 3d9be6ca7ec5..da5926fead4a 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -1131,8 +1131,8 @@ static void configure_exception_vector(void)
tlbrentry = (unsigned long)exception_handlers + 80*VECSIZE;
csr_write64(eentry, LOONGARCH_CSR_EENTRY);
- csr_write64(eentry, LOONGARCH_CSR_MERRENTRY);
- csr_write64(tlbrentry, LOONGARCH_CSR_TLBRENTRY);
+ csr_write64(__pa(eentry), LOONGARCH_CSR_MERRENTRY);
+ csr_write64(__pa(tlbrentry), LOONGARCH_CSR_TLBRENTRY);
}
void per_cpu_trap_init(int cpu)
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-17 07:28:57 +0000