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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
commit93467b31bec6da512b51544e5e4584f2745e995e (patch)
tree2ea2be38c5e4dc9aafffbbc0db5aae0f6513a1d9 /arch/loongarch
parent8ca1f4c6fb1462ee120730ea75c19da10d2f2d6f (diff)
parent7a5cef0db4795d9d453a12e0f61b5b7634fc4d40 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/loongarch')
-rw-r--r--arch/loongarch/configs/loongson32_defconfig1
-rw-r--r--arch/loongarch/configs/loongson64_defconfig1
-rw-r--r--arch/loongarch/include/asm/acpi.h2
-rw-r--r--arch/loongarch/kernel/acpi.c28
-rw-r--r--arch/loongarch/kernel/setup.c2
-rw-r--r--arch/loongarch/kvm/intc/eiointc.c6
-rw-r--r--arch/loongarch/kvm/intc/ipi.c2
-rw-r--r--arch/loongarch/kvm/intc/pch_pic.c2
-rw-r--r--arch/loongarch/net/bpf_jit.c5
-rw-r--r--arch/loongarch/pci/acpi.c2
10 files changed, 47 insertions, 4 deletions
diff --git a/arch/loongarch/configs/loongson32_defconfig b/arch/loongarch/configs/loongson32_defconfig
index d5ef396dffe3..82897236863f 100644
--- a/arch/loongarch/configs/loongson32_defconfig
+++ b/arch/loongarch/configs/loongson32_defconfig
@@ -1091,7 +1091,6 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_DEV_VIRTIO=m
-CONFIG_CRYPTO_DEV_LOONGSON_RNG=m
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
diff --git a/arch/loongarch/configs/loongson64_defconfig b/arch/loongarch/configs/loongson64_defconfig
index cba4cdff5acd..a94e88bd7ec5 100644
--- a/arch/loongarch/configs/loongson64_defconfig
+++ b/arch/loongarch/configs/loongson64_defconfig
@@ -1124,7 +1124,6 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_DEV_VIRTIO=m
-CONFIG_CRYPTO_DEV_LOONGSON_RNG=m
CONFIG_DMA_CMA=y
CONFIG_DMA_NUMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
diff --git a/arch/loongarch/include/asm/acpi.h b/arch/loongarch/include/asm/acpi.h
index eda9d4d0a493..c05168aedcaa 100644
--- a/arch/loongarch/include/asm/acpi.h
+++ b/arch/loongarch/include/asm/acpi.h
@@ -38,6 +38,8 @@ static inline bool acpi_has_cpu_in_madt(void)
extern struct list_head acpi_wakeup_device_list;
extern struct acpi_madt_core_pic acpi_core_pic[MAX_CORE_PIC];
+extern void acpi_add_early_pio(void);
+extern void acpi_remove_early_pio(void);
extern int __init parse_acpi_topology(void);
#endif /* !CONFIG_ACPI */
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 058f0dbe8e8f..8f650c9ffecd 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -16,6 +16,7 @@
#include <linux/memblock.h>
#include <linux/of_fdt.h>
#include <linux/serial_core.h>
+#include <linux/vmalloc.h>
#include <asm/io.h>
#include <asm/numa.h>
#include <asm/loongson.h>
@@ -59,6 +60,33 @@ void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
return ioremap_cache(phys, size);
}
+#define PIO_BASE (unsigned long)PCI_IOBASE
+#define PIO_SIZE ALIGN(ISA_IOSIZE, PAGE_SIZE)
+
+static bool acpi_pio;
+
+/* Add PIO for early access */
+void acpi_add_early_pio(void)
+{
+ if (!acpi_disabled) {
+ acpi_pio = true;
+ vmap_page_range(PIO_BASE, PIO_BASE + PIO_SIZE,
+ LOONGSON_LIO_BASE, pgprot_device(PAGE_KERNEL));
+ }
+}
+
+/* Remove PIO for PCI register */
+void acpi_remove_early_pio(void)
+{
+ if (!acpi_pio)
+ return;
+
+ if (!acpi_disabled) {
+ acpi_pio = false;
+ vunmap_range(PIO_BASE, PIO_BASE + PIO_SIZE);
+ }
+}
+
#ifdef CONFIG_SMP
static int set_processor_mask(u32 id, u32 pass)
{
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 839b23edee87..bfc6f274e6e2 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -502,6 +502,8 @@ static __init int arch_reserve_pio_range(void)
{
struct device_node *np;
+ acpi_add_early_pio();
+
for_each_node_by_name(np, "isa") {
struct of_range range;
struct of_range_parser parser;
diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/eiointc.c
index 2ab7fafa86d5..2b14485d14a7 100644
--- a/arch/loongarch/kvm/intc/eiointc.c
+++ b/arch/loongarch/kvm/intc/eiointc.c
@@ -645,10 +645,14 @@ static int kvm_eiointc_create(struct kvm_device *dev, u32 type)
device = &s->device_vext;
kvm_iodevice_init(device, &kvm_eiointc_virt_ops);
+ mutex_lock(&kvm->slots_lock);
ret = kvm_io_bus_register_dev(kvm, KVM_IOCSR_BUS,
EIOINTC_VIRT_BASE, EIOINTC_VIRT_SIZE, device);
+ mutex_unlock(&kvm->slots_lock);
if (ret < 0) {
+ mutex_lock(&kvm->slots_lock);
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &s->device);
+ mutex_unlock(&kvm->slots_lock);
kfree(s);
return ret;
}
@@ -667,8 +671,10 @@ static void kvm_eiointc_destroy(struct kvm_device *dev)
kvm = dev->kvm;
eiointc = kvm->arch.eiointc;
+ mutex_lock(&kvm->slots_lock);
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &eiointc->device);
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &eiointc->device_vext);
+ mutex_unlock(&kvm->slots_lock);
kfree(eiointc);
kfree(dev);
}
diff --git a/arch/loongarch/kvm/intc/ipi.c b/arch/loongarch/kvm/intc/ipi.c
index 1f6ebbd0af5c..4fa0897d7bdb 100644
--- a/arch/loongarch/kvm/intc/ipi.c
+++ b/arch/loongarch/kvm/intc/ipi.c
@@ -447,7 +447,9 @@ static void kvm_ipi_destroy(struct kvm_device *dev)
kvm = dev->kvm;
ipi = kvm->arch.ipi;
+ mutex_lock(&kvm->slots_lock);
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &ipi->device);
+ mutex_unlock(&kvm->slots_lock);
kfree(ipi);
kfree(dev);
}
diff --git a/arch/loongarch/kvm/intc/pch_pic.c b/arch/loongarch/kvm/intc/pch_pic.c
index aa0ed59ae8cf..175a630aceb4 100644
--- a/arch/loongarch/kvm/intc/pch_pic.c
+++ b/arch/loongarch/kvm/intc/pch_pic.c
@@ -481,7 +481,9 @@ static void kvm_pch_pic_destroy(struct kvm_device *dev)
kvm = dev->kvm;
s = kvm->arch.pch_pic;
/* unregister pch pic device and free it's memory */
+ mutex_lock(&kvm->slots_lock);
kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &s->device);
+ mutex_unlock(&kvm->slots_lock);
kfree(s);
kfree(dev);
}
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index 24913dc7f4e8..e14a8aa47fc8 100644
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -1762,7 +1762,7 @@ static int invoke_bpf(struct jit_ctx *ctx, struct bpf_tramp_links *tl,
void *arch_alloc_bpf_trampoline(unsigned int size)
{
- return bpf_prog_pack_alloc(size, jit_fill_hole);
+ return bpf_prog_pack_alloc(size, jit_fill_hole, false);
}
void arch_free_bpf_trampoline(void *image, unsigned int size)
@@ -2228,7 +2228,8 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_verifier_env *env, struct bpf_pr
image_size = prog_size + extable_size;
/* Now we know the size of the structure to make */
ro_header = bpf_jit_binary_pack_alloc(image_size, &ro_image_ptr, sizeof(u32),
- &header, &image_ptr, jit_fill_hole);
+ &header, &image_ptr, jit_fill_hole,
+ bpf_prog_was_classic(prog));
if (!ro_header)
goto out_offset;
diff --git a/arch/loongarch/pci/acpi.c b/arch/loongarch/pci/acpi.c
index b02698a338ee..ccbcea61fcd9 100644
--- a/arch/loongarch/pci/acpi.c
+++ b/arch/loongarch/pci/acpi.c
@@ -65,6 +65,8 @@ static int acpi_prepare_root_resources(struct acpi_pci_root_info *ci)
struct resource_entry *entry, *tmp;
struct acpi_device *device = ci->bridge;
+ acpi_remove_early_pio();
+
status = acpi_pci_probe_root_resources(ci);
if (status > 0) {
acpi_evaluate_integer(device->handle, "PCIH", NULL, &pci_h);