diff options
51 files changed, 265 insertions, 235 deletions
diff --git a/arch/um/.gitignore b/arch/um/.gitignore index 6323e5571887..d69ea5b562ce 100644 --- a/arch/um/.gitignore +++ b/arch/um/.gitignore @@ -2,3 +2,4 @@ kernel/config.c kernel/config.tmp kernel/vmlinux.lds +kernel/capflags.c diff --git a/arch/um/Kconfig b/arch/um/Kconfig index c18b45f75d41..b233db4f42b2 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -18,10 +18,10 @@ config UML select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_BUGVERBOSE select NO_DMA if !UML_DMA_EMULATION + select OF_EARLY_FLATTREE if OF select GENERIC_IRQ_SHOW select GENERIC_CPU_DEVICES select HAVE_GCC_PLUGINS - select SET_FS select TRACE_IRQFLAGS_SUPPORT select TTY # Needed for line.c select HAVE_ARCH_VMAP_STACK diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c index c08066633023..0ab58016db22 100644 --- a/arch/um/drivers/virt-pci.c +++ b/arch/um/drivers/virt-pci.c @@ -181,15 +181,15 @@ static unsigned long um_pci_cfgspace_read(void *priv, unsigned int offset, /* buf->data is maximum size - we may only use parts of it */ struct um_pci_message_buffer *buf; u8 *data; - unsigned long ret = ~0ULL; + unsigned long ret = ULONG_MAX; if (!dev) - return ~0ULL; + return ULONG_MAX; buf = get_cpu_var(um_pci_msg_bufs); data = buf->data; - memset(data, 0xff, sizeof(data)); + memset(buf->data, 0xff, sizeof(buf->data)); switch (size) { case 1: @@ -304,7 +304,7 @@ static unsigned long um_pci_bar_read(void *priv, unsigned int offset, /* buf->data is maximum size - we may only use parts of it */ struct um_pci_message_buffer *buf; u8 *data; - unsigned long ret = ~0ULL; + unsigned long ret = ULONG_MAX; buf = get_cpu_var(um_pci_msg_bufs); data = buf->data; diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/drivers/virtio_uml.c index d51e445df797..ba562d68dc04 100644 --- a/arch/um/drivers/virtio_uml.c +++ b/arch/um/drivers/virtio_uml.c @@ -21,6 +21,7 @@ * Based on Virtio MMIO driver by Pawel Moll, copyright 2011-2014, ARM Ltd. */ #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/virtio.h> @@ -49,6 +50,7 @@ struct virtio_uml_platform_data { struct virtio_uml_device { struct virtio_device vdev; struct platform_device *pdev; + struct virtio_uml_platform_data *pdata; spinlock_t sock_lock; int sock, req_fd, irq; @@ -149,7 +151,7 @@ static int vhost_user_recv(struct virtio_uml_device *vu_dev, if (rc == -ECONNRESET && vu_dev->registered) { struct virtio_uml_platform_data *pdata; - pdata = vu_dev->pdev->dev.platform_data; + pdata = vu_dev->pdata; virtio_break_device(&vu_dev->vdev); schedule_work(&pdata->conn_broken_wk); @@ -1090,6 +1092,8 @@ static void virtio_uml_release_dev(struct device *d) container_of(d, struct virtio_device, dev); struct virtio_uml_device *vu_dev = to_virtio_uml_device(vdev); + time_travel_propagate_time(); + /* might not have been opened due to not negotiating the feature */ if (vu_dev->req_fd >= 0) { um_free_irq(vu_dev->irq, vu_dev); @@ -1113,21 +1117,63 @@ void virtio_uml_set_no_vq_suspend(struct virtio_device *vdev, no_vq_suspend ? "dis" : "en"); } +static void vu_of_conn_broken(struct work_struct *wk) +{ + /* + * We can't remove the device from the devicetree so the only thing we + * can do is warn. + */ + WARN_ON(1); +} + /* Platform device */ +static struct virtio_uml_platform_data * +virtio_uml_create_pdata(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct virtio_uml_platform_data *pdata; + int ret; + + if (!np) + return ERR_PTR(-EINVAL); + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + INIT_WORK(&pdata->conn_broken_wk, vu_of_conn_broken); + pdata->pdev = pdev; + + ret = of_property_read_string(np, "socket-path", &pdata->socket_path); + if (ret) + return ERR_PTR(ret); + + ret = of_property_read_u32(np, "virtio-device-id", + &pdata->virtio_device_id); + if (ret) + return ERR_PTR(ret); + + return pdata; +} + static int virtio_uml_probe(struct platform_device *pdev) { struct virtio_uml_platform_data *pdata = pdev->dev.platform_data; struct virtio_uml_device *vu_dev; int rc; - if (!pdata) - return -EINVAL; + if (!pdata) { + pdata = virtio_uml_create_pdata(pdev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } vu_dev = kzalloc(sizeof(*vu_dev), GFP_KERNEL); if (!vu_dev) return -ENOMEM; + vu_dev->pdata = pdata; vu_dev->vdev.dev.parent = &pdev->dev; vu_dev->vdev.dev.release = virtio_uml_release_dev; vu_dev->vdev.config = &virtio_uml_config_ops; @@ -1136,6 +1182,8 @@ static int virtio_uml_probe(struct platform_device *pdev) vu_dev->pdev = pdev; vu_dev->req_fd = -1; + time_travel_propagate_time(); + do { rc = os_connect_socket(pdata->socket_path); } while (rc == -EINTR); diff --git a/arch/um/include/asm/delay.h b/arch/um/include/asm/delay.h index 56fc2b8f2dd0..e79b2ab6f40c 100644 --- a/arch/um/include/asm/delay.h +++ b/arch/um/include/asm/delay.h @@ -14,7 +14,7 @@ static inline void um_ndelay(unsigned long nsecs) ndelay(nsecs); } #undef ndelay -#define ndelay um_ndelay +#define ndelay(n) um_ndelay(n) static inline void um_udelay(unsigned long usecs) { @@ -26,5 +26,5 @@ static inline void um_udelay(unsigned long usecs) udelay(usecs); } #undef udelay -#define udelay um_udelay +#define udelay(n) um_udelay(n) #endif /* __UM_DELAY_H */ diff --git a/arch/um/include/asm/irqflags.h b/arch/um/include/asm/irqflags.h index dab5744e9253..1e69ef5bc35e 100644 --- a/arch/um/include/asm/irqflags.h +++ b/arch/um/include/asm/irqflags.h @@ -3,7 +3,7 @@ #define __UM_IRQFLAGS_H extern int signals_enabled; -int set_signals(int enable); +int um_set_signals(int enable); void block_signals(void); void unblock_signals(void); @@ -16,7 +16,7 @@ static inline unsigned long arch_local_save_flags(void) #define arch_local_irq_restore arch_local_irq_restore static inline void arch_local_irq_restore(unsigned long flags) { - set_signals(flags); + um_set_signals(flags); } #define arch_local_irq_enable arch_local_irq_enable diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h index 579692a40a55..6a4fe8b4e686 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -11,7 +11,6 @@ struct pt_regs; struct task_struct; #include <asm/ptrace.h> -#include <registers.h> #include <sysdep/archsetjmp.h> #include <linux/prefetch.h> @@ -105,6 +104,7 @@ extern struct cpuinfo_um boot_cpu_data; #define current_cpu_data boot_cpu_data #define cache_line_size() (boot_cpu_data.cache_alignment) +extern unsigned long get_thread_reg(int reg, jmp_buf *buf); #define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) extern unsigned long __get_wchan(struct task_struct *p); diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h index 3b1cb8b3b186..1395cbd7e340 100644 --- a/arch/um/include/asm/thread_info.h +++ b/arch/um/include/asm/thread_info.h @@ -22,9 +22,6 @@ struct thread_info { __u32 cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ - mm_segment_t addr_limit; /* thread address space: - 0-0xBFFFFFFF for user - 0-0xFFFFFFFF for kernel */ struct thread_info *real_thread; /* Points to non-IRQ stack */ unsigned long aux_fp_regs[FP_SIZE]; /* auxiliary fp_regs to save/restore them out-of-band */ @@ -36,7 +33,6 @@ struct thread_info { .flags = 0, \ .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ - .addr_limit = KERNEL_DS, \ .real_thread = NULL, \ } diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h index 191ef36dd543..17d18cfd82a5 100644 --- a/arch/um/include/asm/uaccess.h +++ b/arch/um/include/asm/uaccess.h @@ -8,6 +8,7 @@ #define __UM_UACCESS_H #include <asm/elf.h> +#include <asm/unaligned.h> #define __under_task_size(addr, size) \ (((unsigned long) (addr) < TASK_SIZE) && \ @@ -39,8 +40,24 @@ static inline int __access_ok(unsigned long addr, unsigned long size) { return __addr_range_nowrap(addr, size) && (__under_task_size(addr, size) || - __access_ok_vsyscall(addr, size) || - uaccess_kernel()); + __access_ok_vsyscall(addr, size)); } +/* no pagefaults for kernel addresses in um */ +#define HAVE_GET_KERNEL_NOFAULT 1 + +#define __get_kernel_nofault(dst, src, type, err_label) \ +do { \ + *((type *)dst) = get_unaligned((type *)(src)); \ + if (0) /* make sure the label looks used to the compiler */ \ + goto err_label; \ +} while (0) + +#define __put_kernel_nofault(dst, src, type, err_label) \ +do { \ + put_unaligned(*((type *)src), (type *)(dst)); \ + if (0) /* make sure the label looks used to the compiler */ \ + goto err_label; \ +} while (0) + #endif diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h index edc90ab73734..96195483fbd0 100644 --- a/arch/um/include/shared/common-offsets.h +++ b/arch/um/include/shared/common-offsets.h @@ -9,32 +9,17 @@ DEFINE(UM_KERN_PAGE_MASK, PAGE_MASK); DEFINE(UM_KERN_PAGE_SHIFT, PAGE_SHIFT); DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC); -DEFINE(UM_ELF_CLASS, ELF_CLASS); -DEFINE(UM_ELFCLASS32, ELFCLASS32); -DEFINE(UM_ELFCLASS64, ELFCLASS64); - -DEFINE(UM_NR_CPUS, NR_CPUS); - DEFINE(UM_GFP_KERNEL, GFP_KERNEL); DEFINE(UM_GFP_ATOMIC, GFP_ATOMIC); -/* For crypto assembler code. */ -DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); - DEFINE(UM_THREAD_SIZE, THREAD_SIZE); -DEFINE(UM_HZ, HZ); - -DEFINE(UM_USEC_PER_SEC, USEC_PER_SEC); DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC); DEFINE(UM_NSEC_PER_USEC, NSEC_PER_USEC); #ifdef CONFIG_PRINTK DEFINE(UML_CONFIG_PRINTK, CONFIG_PRINTK); #endif -#ifdef CONFIG_NO_HZ_COMMON -DEFINE(UML_CONFIG_NO_HZ_COMMON, CONFIG_NO_HZ_COMMON); -#endif #ifdef CONFIG_UML_X86 DEFINE(UML_CONFIG_UML_X86, CONFIG_UML_X86); #endif diff --git a/arch/um/include/shared/irq_user.h b/arch/um/include/shared/irq_user.h index 86a8a573b65c..da0f6eea30d0 100644 --- a/arch/um/include/shared/irq_user.h +++ b/arch/um/include/shared/irq_user.h @@ -20,6 +20,5 @@ void sigio_run_timetravel_handlers(void); extern void free_irq_by_fd(int fd); extern void deactivate_fd(int fd, int irqnum); extern int deactivate_all_fds(void); -extern int activate_ipi(int fd, int pid); #endif diff --git a/arch/um/include/shared/kern_util.h b/arch/um/include/shared/kern_util.h index a2cfd42608a0..d8b8b4f07e42 100644 --- a/arch/um/include/shared/kern_util.h +++ b/arch/um/include/shared/kern_util.h @@ -53,13 +53,11 @@ extern void do_uml_exitcalls(void); extern int __cant_sleep(void); extern int get_current_pid(void); extern int copy_from_user_proc(void *to, void *from, int size); -extern int cpu(void); extern char *uml_strdup(const char *string); extern unsigned long to_irq_stack(unsigned long *mask_out); extern unsigned long from_irq_stack(int nested); -extern void syscall_trace(struct uml_pt_regs *regs, int entryexit); extern int singlestepping(void *t); extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); diff --git a/arch/um/include/shared/longjmp.h b/arch/um/include/shared/longjmp.h index bdb2869b72b3..8863319039f3 100644 --- a/arch/um/include/shared/longjmp.h +++ b/arch/um/include/shared/longjmp.h @@ -18,7 +18,7 @@ extern void longjmp(jmp_buf, int); enable = *(volatile int *)&signals_enabled; \ n = setjmp(*buf); \ if(n != 0) \ - set_signals_trace(enable); \ + um_set_signals_trace(enable); \ n; }) #endif diff --git a/arch/um/include/shared/mem_user.h b/arch/um/include/shared/mem_user.h index cb84414e3e66..11a723a58545 100644 --- a/arch/um/include/shared/mem_user.h +++ b/arch/um/include/shared/mem_user.h @@ -46,16 +46,11 @@ extern int iomem_size; #define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1)) -extern int init_mem_user(void); -extern void setup_memory(void *entry); extern unsigned long find_iomem(char *driver, unsigned long *len_out); extern void mem_total_pages(unsigned long physmem, unsigned long iomem, unsigned long highmem); -extern unsigned long get_vm(unsigned long len); extern void setup_physmem(unsigned long start, unsigned long usable, unsigned long len, unsigned long long highmem); -extern void add_iomem(char *name, int fd, unsigned long size); -extern unsigned long phys_offset(unsigned long phys); extern void map_memory(unsigned long virt, unsigned long phys, unsigned long len, int r, int w, int x); diff --git a/arch/um/include/shared/net_kern.h b/arch/um/include/shared/net_kern.h index a87be13c5b87..441a8a309329 100644 --- a/arch/um/include/shared/net_kern.h +++ b/arch/um/include/shared/net_kern.h @@ -59,8 +59,6 @@ struct transport { const int setup_size; }; -extern struct net_device *ether_init(int); -extern unsigned short ether_protocol(struct sk_buff *); extern int tap_setup_common(char *str, char *type, char **dev_name, char **mac_out, char **gate_addr); extern void register_transport(struct transport *new); diff --git a/arch/um/include/shared/net_user.h b/arch/um/include/shared/net_user.h index 1b0531769a5e..ba92a4d93531 100644 --- a/arch/um/include/shared/net_user.h +++ b/arch/um/include/shared/net_user.h @@ -24,7 +24,6 @@ struct net_user_info { int mtu; }; -extern void ether_user_init(void *data, void *dev); extern void iter_addresses(void *d, void (*cb)(unsigned char *, unsigned char *, void *), void *arg); diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index 96d400387c93..00214059d9ec 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -159,20 +159,11 @@ extern int os_create_unix_socket(const char *file, int len, int close_on_exec); extern int os_shutdown_socket(int fd, int r, int w); extern void os_close_file(int fd); extern int os_rcv_fd(int fd, int *helper_pid_out); -extern int create_unix_socket(char *file, int len, int close_on_exec); extern int os_connect_socket(const char *name); extern int os_file_type(char *file); extern int os_file_mode(const char *file, struct openflags *mode_out); extern int os_lock_file(int fd, int excl); extern void os_flush_stdout(void); -extern int os_stat_filesystem(char *path, long *bsize_out, - long long *blocks_out, long long *bfree_out, - long long *bavail_out, long long *files_out, - long long *ffree_out, void *fsid_out, - int fsid_size, long *namelen_out, - long *spare_out); -extern int os_change_dir(char *dir); -extern int os_fchange_dir(int fd); extern unsigned os_major(unsigned long long dev); extern unsigned os_minor(unsigned long long dev); extern unsigned long long os_makedev(unsigned major, unsigned minor); @@ -232,14 +223,13 @@ extern char *get_umid(void); /* signal.c */ extern void timer_set_signal_handler(void); extern void set_sigstack(void *sig_stack, int size); -extern void remove_sigstack(void); extern void set_handler(int sig); extern void send_sigio_to_self(void); extern int change_sig(int signal, int on); extern void block_signals(void); extern void unblock_signals(void); -extern int set_signals(int enable); -extern int set_signals_trace(int enable); +extern int um_set_signals(int enable); +extern int um_set_signals_trace(int enable); extern int os_is_signal_stack(void); extern void deliver_alarm(void); extern void register_pm_wake_signal(void); @@ -266,7 +256,6 @@ extern int os_timer_create(void); extern int os_timer_set_interval(unsigned long long nsecs); extern int os_timer_one_shot(unsigned long long nsecs); extern void os_timer_disable(void); -extern void uml_idle_timer(void); extern long long os_persistent_clock_emulation(void); extern long long os_nsecs(void); @@ -290,8 +279,6 @@ extern int is_skas_winch(int pid, int fd, void *data); extern int start_userspace(unsigned long stub_stack); extern int copy_context_skas0(unsigned long stack, int pid); extern void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs); -extern int map_stub_pages(int fd, unsigned long code, unsigned long data, - unsigned long stack); extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); extern void switch_threads(jmp_buf *me, jmp_buf *you); extern int start_idle_thread(void *stack, jmp_buf *switch_buf); diff --git a/arch/um/include/shared/registers.h b/arch/um/include/shared/registers.h index 0c50fa6e8a55..2f9c3ce5b45e 100644 --- a/arch/um/include/shared/registers.h +++ b/arch/um/include/shared/registers.h @@ -7,7 +7,6 @@ #define __REGISTERS_H #include <sysdep/ptrace.h> -#include <sysdep/archsetjmp.h> extern int save_i387_registers(int pid, unsigned long *fp_regs); extern int restore_i387_registers(int pid, unsigned long *fp_regs); @@ -16,10 +15,9 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs); extern int save_fpx_registers(int pid, unsigned long *fp_regs); extern int restore_fpx_registers(int pid, unsigned long *fp_regs); extern int save_registers(int pid, struct uml_pt_regs *regs); -extern int restore_registers(int pid, struct uml_pt_regs *regs); -extern int init_registers(int pid); +extern int restore_pid_registers(int pid, struct uml_pt_regs *regs); +extern int init_pid_registers(int pid); extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs); -extern unsigned long get_thread_reg(int reg, jmp_buf *buf); extern int get_fp_registers(int pid, unsigned long *regs); extern int put_fp_registers(int pid, unsigned long *regs); diff --git a/arch/um/include/shared/sigio.h b/arch/um/include/shared/sigio.h index 8fe8f57c05de..e60c8b227844 100644 --- a/arch/um/include/shared/sigio.h +++ b/arch/um/include/shared/sigio.h @@ -7,7 +7,6 @@ #define __SIGIO_H__ extern int write_sigio_irq(int fd); -extern int register_sigio_fd(int fd); extern void sigio_lock(void); extern void sigio_unlock(void); diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index 1d18e4e46989..1c2d4b29a3d4 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile @@ -16,11 +16,13 @@ extra-y := vmlinux.lds obj-y = config.o exec.o exitcode.o irq.o ksyms.o mem.o \ physmem.o process.o ptrace.o reboot.o sigio.o \ - signal.o syscall.o sysrq.o time.o tlb.o trap.o \ + signal.o sysrq.o time.o tlb.o trap.o \ um_arch.o umid.o maccess.o kmsg_dump.o capflags.o skas/ +obj-y += load_file.o obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o obj-$(CONFIG_GPROF) += gprof_syms.o +obj-$(CONFIG_OF) += dtb.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_GENERIC_PCI_IOMAP) += ioport.o diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c new file mode 100644 index 000000000000..ca69d72025f3 --- /dev/null +++ b/arch/um/kernel/dtb.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/init.h> +#include <linux/of_fdt.h> +#include <linux/printk.h> +#include <linux/memblock.h> +#include <init.h> + +#include "um_arch.h" + +static char *dtb __initdata; + +void uml_dtb_init(void) +{ + long long size; + void *area; + + area = uml_load_file(dtb, &size); + if (!area) + return; + + if (!early_init_dt_scan(area)) { + pr_err("invalid DTB %s\n", dtb); + memblock_free(area, size); + return; + } + + unflatten_device_tree(); + early_init_fdt_scan_reserved_mem(); +} + +static int __init uml_dtb_setup(char *line, int *add) +{ + dtb = line; + return 0; +} + +__uml_setup("dtb=", uml_dtb_setup, +"dtb=<file>\n" +" Boot the kernel with the devicetree blob from the specified file.\n" +); diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 4d8498100341..c85e40c72779 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -16,6 +16,7 @@ #include <linux/uaccess.h> #include <as-layout.h> #include <mem_user.h> +#include <registers.h> #include <skas.h> #include <os.h> diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index c1981ffb7179..47b8cb1a1156 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -10,37 +10,21 @@ #include <init.h> #include <os.h> +#include "um_arch.h" + /* Changed by uml_initrd_setup, which is a setup */ static char *initrd __initdata = NULL; -static int load_initrd(char *filename, void *buf, int size); int __init read_initrd(void) { + unsigned long long size; void *area; - long long size; - int err; - - if (initrd == NULL) - return 0; - err = os_file_size(initrd, &size); - if (err) + if (!initrd) return 0; - /* - * This is necessary because alloc_bootmem craps out if you - * ask for no memory. - */ - if (size == 0) { - printk(KERN_ERR "\"%s\" is a zero-size initrd\n", initrd); - return 0; - } - - area = memblock_alloc(size, SMP_CACHE_BYTES); + area = uml_load_file(initrd, &size); if (!area) - panic("%s: Failed to allocate %llu bytes\n", __func__, size); - - if (load_initrd(initrd, area, size) == -1) return 0; initrd_start = (unsigned long) area; @@ -59,25 +43,3 @@ __uml_setup("initrd=", uml_initrd_setup, " This is used to boot UML from an initrd image. The argument is the\n" " name of the file containing the image.\n\n" ); - -static int load_initrd(char *filename, void *buf, int size) -{ - int fd, n; - - fd = os_open_file(filename, of_read(OPENFLAGS()), 0); - if (fd < 0) { - printk(KERN_ERR "Opening '%s' failed - err = %d\n", filename, - -fd); - return -1; - } - n = os_read_file(fd, buf, size); - if (n != size) { - printk(KERN_ERR "Read of %d bytes from '%s' failed, " - "err = %d\n", size, - filename, -n); - return -1; - } - - os_close_file(fd); - return 0; -} diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index b1e5634398d0..3a85bde3e173 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c @@ -6,7 +6,7 @@ #include <linux/module.h> #include <os.h> -EXPORT_SYMBOL(set_signals); +EXPORT_SYMBOL(um_set_signals); EXPORT_SYMBOL(signals_enabled); EXPORT_SYMBOL(os_stat_fd); diff --git a/arch/um/kernel/load_file.c b/arch/um/kernel/load_file.c new file mode 100644 index 000000000000..5cecd0e291fb --- /dev/null +++ b/arch/um/kernel/load_file.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + */ +#include <linux/memblock.h> +#include <os.h> + +#include "um_arch.h" + +static int __init __uml_load_file(const char *filename, void *buf, int size) +{ + int fd, n; + + fd = os_open_file(filename, of_read(OPENFLAGS()), 0); + if (fd < 0) { + printk(KERN_ERR "Opening '%s' failed - err = %d\n", filename, + -fd); + return -1; + } + n = os_read_file(fd, buf, size); + if (n != size) { + printk(KERN_ERR "Read of %d bytes from '%s' failed, " + "err = %d\n", size, + filename, -n); + return -1; + } + + os_close_file(fd); + return 0; +} + +void *uml_load_file(const char *filename, unsigned long long *size) +{ + void *area; + int err; + + *size = 0; + + if (!filename) + return NULL; + + err = os_file_size(filename, size); + if (err) + return NULL; + + if (*size == 0) { + printk(KERN_ERR "\"%s\" is empty\n", filename); + return NULL; + } + + area = memblock_alloc(*size, SMP_CACHE_BYTES); + if (!area) + panic("%s: Failed to allocate %llu bytes\n", __func__, *size); + + if (__uml_load_file(filename, area, *size)) { + memblock_free(area, *size); + return NULL; + } + + return area; +} diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 0039771eb01c..15295c3237a0 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -85,8 +85,7 @@ static void __init one_md_table_init(pud_t *pud) __func__, PAGE_SIZE, PAGE_SIZE); set_pud(pud, __pud(_KERNPG_TABLE + (unsigned long) __pa(pmd_table))); - if (pmd_table != pmd_offset(pud, 0)) - BUG(); + BUG_ON(pmd_table != pmd_offset(pud, 0)); #endif } diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 82107373ac7e..4a420778ed87 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -31,6 +31,7 @@ #include <kern_util.h> #include <os.h> #include <skas.h> +#include <registers.h> #include <linux/time-internal.h> /* @@ -263,11 +264,6 @@ int clear_user_proc(void __user *buf, int size) return clear_user(buf, size); } -int cpu(void) -{ - return current_thread_info()->cpu; -} - static atomic_t using_sysemu = ATOMIC_INIT(0); int sysemu_supported; diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c index a509be911026..23775d01a2a6 100644 --- a/arch/um/kernel/skas/uaccess.c +++ b/arch/um/kernel/skas/uaccess.c @@ -146,11 +146,6 @@ static int copy_chunk_from_user(unsigned long from, int len, void *arg) unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n) { - if (uaccess_kernel()) { - memcpy(to, (__force void*)from, n); - return 0; - } - return buffer_op((unsigned long) from, n, 0, copy_chunk_from_user, &to); } EXPORT_SYMBOL(raw_copy_from_user); @@ -166,11 +161,6 @@ static int copy_chunk_to_user(unsigned long to, int len, void *arg) unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n) { - if (uaccess_kernel()) { - memcpy((__force void *) to, from, n); - return 0; - } - return buffer_op((unsigned long) to, n, 1, copy_chunk_to_user, &from); } EXPORT_SYMBOL(raw_copy_to_user); @@ -196,12 +186,6 @@ long strncpy_from_user(char *dst, const char __user *src, long count) if (!access_ok(src, 1)) return -EFAULT; - - if (uaccess_kernel()) { - strncpy(dst, (__force void *) src, count); - return strnlen(dst, count); - } - n = buffer_op((unsigned long) src, count, 0, strncpy_chunk_from_user, &ptr); if (n != 0) @@ -218,11 +202,6 @@ static int clear_chunk(unsigned long addr, int len, void *unused) unsigned long __clear_user(void __user *mem, unsigned long len) { - if (uaccess_kernel()) { - memset((__force void*)mem, 0, len); - return 0; - } - return buffer_op((unsigned long) mem, len, 1, clear_chunk, NULL); } EXPORT_SYMBOL(__clear_user); @@ -245,10 +224,6 @@ long strnlen_user(const char __user *str, long len) if (!access_ok(str, 1)) return -EFAULT; - - if (uaccess_kernel()) - return strnlen((__force char*)str, len) + 1; - n = buffer_op((unsigned long) str, len, 0, strnlen_chunk, &count); if (n == 0) return count + 1; diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c deleted file mode 100644 index eed54c53fbbb..000000000000 --- a/arch/um/kernel/syscall.c +++ /dev/null @@ -1,28 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - */ - -#include <linux/file.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/utsname.h> -#include <linux/syscalls.h> -#include <asm/current.h> -#include <asm/mman.h> -#include <linux/uaccess.h> -#include <asm/unistd.h> - -long old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long offset) -{ - long err = -EINVAL; - if (offset & ~PAGE_MASK) - goto out; - - err = ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); - out: - return err; -} diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index c32efb09db21..561a2b03c3cf 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -127,7 +127,6 @@ out_of_memory: pagefault_out_of_memory(); return 0; } -EXPORT_SYMBOL(handle_page_fault); static void show_segv_info(struct uml_pt_regs *regs) { diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 54447690de11..abceeabe29b9 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -29,6 +29,8 @@ #include <mem_user.h> #include <os.h> +#include "um_arch.h" + #define DEFAULT_COMMAND_LINE_ROOT "root=98:0" #define DEFAULT_COMMAND_LINE_CONSOLE "console=tty" @@ -407,6 +409,7 @@ void __init setup_arch(char **cmdline_p) stack_protections((unsigned long) &init_thread_info); setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); mem_total_pages(physmem_size, iomem_size, highmem); + uml_dtb_init(); read_initrd(); paging_init(); diff --git a/arch/um/kernel/um_arch.h b/arch/um/kernel/um_arch.h new file mode 100644 index 000000000000..1e07fb7ee35e --- /dev/null +++ b/arch/um/kernel/um_arch.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __UML_ARCH_H__ +#define __UML_ARCH_H__ + +extern void * __init uml_load_file(const char *filename, unsigned long long *size); + +#ifdef CONFIG_OF +extern void __init uml_dtb_init(void); +#else +static inline void uml_dtb_init(void) { } +#endif + +#endif diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c index 2d9270508e15..b123955be7ac 100644 --- a/arch/um/os-Linux/registers.c +++ b/arch/um/os-Linux/registers.c @@ -21,7 +21,7 @@ int save_registers(int pid, struct uml_pt_regs *regs) return 0; } -int restore_registers(int pid, struct uml_pt_regs *regs) +int restore_pid_registers(int pid, struct uml_pt_regs *regs) { int err; @@ -36,7 +36,7 @@ int restore_registers(int pid, struct uml_pt_regs *regs) static unsigned long exec_regs[MAX_REG_NR]; static unsigned long exec_fp_regs[FP_SIZE]; -int init_registers(int pid) +int init_pid_registers(int pid) { int err; diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 6597ea1986ff..37d60e72cf26 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -3,6 +3,7 @@ * Copyright (C) 2002 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com) */ +#include <linux/minmax.h> #include <unistd.h> #include <errno.h> #include <fcntl.h> @@ -50,7 +51,7 @@ static struct pollfds all_sigio_fds; static int write_sigio_thread(void *unused) { - struct pollfds *fds, tmp; + struct pollfds *fds; struct pollfd *p; int i, n, respond_fd; char c; @@ -77,9 +78,7 @@ static int write_sigio_thread(void *unused) "write_sigio_thread : " "read on socket failed, " "err = %d\n", errno); - tmp = current_poll; - current_poll = next_poll; - next_poll = tmp; + swap(current_poll, next_poll); respond_fd = sigio_private[1]; } else { @@ -132,7 +131,7 @@ static void update_thread(void) int n; char c; - flags = set_signals_trace(0); + flags = um_set_signals_trace(0); CATCH_EINTR(n = write(sigio_private[0], &c, sizeof(c))); if (n != sizeof(c)) { printk(UM_KERN_ERR "update_thread : write failed, err = %d\n", @@ -147,7 +146,7 @@ static void update_thread(void) goto fail; } - set_signals_trace(flags); + um_set_signals_trace(flags); return; fail: /* Critical section start */ @@ -161,7 +160,7 @@ static void update_thread(void) close(write_sigio_fds[0]); close(write_sigio_fds[1]); /* Critical section end */ - set_signals_trace(flags); + um_set_signals_trace(flags); } int __add_sigio_fd(int fd) diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 6cf098c23a39..24a403a70a02 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -94,7 +94,7 @@ void sig_handler(int sig, struct siginfo *si, mcontext_t *mc) sig_handler_common(sig, si, mc); - set_signals_trace(enabled); + um_set_signals_trace(enabled); } static void timer_real_alarm_handler(mcontext_t *mc) @@ -126,7 +126,7 @@ void timer_alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc) signals_active &= ~SIGALRM_MASK; - set_signals_trace(enabled); + um_set_signals_trace(enabled); } void deliver_alarm(void) { @@ -348,7 +348,7 @@ void unblock_signals(void) } } -int set_signals(int enable) +int um_set_signals(int enable) { int ret; if (signals_enabled == enable) @@ -362,7 +362,7 @@ int set_signals(int enable) return ret; } -int set_signals_trace(int enable) +int um_set_signals_trace(int enable) { int ret; if (signals_enabled == enable) diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 8a72c99994eb..e3ee4db58b40 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -368,7 +368,7 @@ void __init os_early_checks(void) check_tmpexec(); pid = start_ptraced_child(); - if (init_registers(pid)) + if (init_pid_registers(pid)) fatal("Failed to initialize default registers"); stop_ptraced_child(pid, 1, 1); } diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c index ecd3fd6993d1..9fb0a2f8b62a 100644 --- a/arch/x86/kernel/asm-offsets.c +++ b/arch/x86/kernel/asm-offsets.c @@ -38,9 +38,6 @@ static void __used common(void) #endif BLANK(); - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); - - BLANK(); OFFSET(pbe_address, pbe, address); OFFSET(pbe_orig_address, pbe, orig_address); OFFSET(pbe_next, pbe, next); diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index 5ccb18290d71..ba5789c35809 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile @@ -40,7 +40,7 @@ $(obj)/user-offsets.s: c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) \ -Iarch/x86/include/generated targets += user-offsets.s -include/generated/user_constants.h: $(obj)/user-offsets.s +include/generated/user_constants.h: $(obj)/user-offsets.s FORCE $(call filechk,offsets,__USER_CONSTANT_H__) UNPROFILE_OBJS := stub_segv.o diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index 165be7f9a964..4da336965698 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h @@ -2,6 +2,7 @@ #ifndef _ASM_UM_BARRIER_H_ #define _ASM_UM_BARRIER_H_ +#include <asm/cpufeatures.h> #include <asm/alternative.h> /* diff --git a/arch/x86/um/asm/segment.h b/arch/x86/um/asm/segment.h index 453db377150d..2ef507bc6989 100644 --- a/arch/x86/um/asm/segment.h +++ b/arch/x86/um/asm/segment.h @@ -8,12 +8,4 @@ extern int host_gdt_entry_tls_min; #define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) -typedef struct { - unsigned long seg; -} mm_segment_t; - -#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -#define KERNEL_DS MAKE_MM_SEG(~0UL) -#define USER_DS MAKE_MM_SEG(TASK_SIZE) - #endif diff --git a/arch/x86/um/os-Linux/registers.c b/arch/x86/um/os-Linux/registers.c index 3c423dfcd78b..df8f4b4bf98b 100644 --- a/arch/x86/um/os-Linux/registers.c +++ b/arch/x86/um/os-Linux/registers.c @@ -15,6 +15,7 @@ #include <sys/uio.h> #include <asm/sigcontext.h> #include <linux/elf.h> +#include <registers.h> int have_xstate_support; diff --git a/arch/x86/um/ptrace_32.c b/arch/x86/um/ptrace_32.c index 2497bac56066..0bc4b73a9cde 100644 --- a/arch/x86/um/ptrace_32.c +++ b/arch/x86/um/ptrace_32.c @@ -7,6 +7,7 @@ #include <linux/sched.h> #include <linux/uaccess.h> #include <asm/ptrace-abi.h> +#include <registers.h> #include <skas.h> extern int arch_switch_tls(struct task_struct *to); diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c index 1401899dee9b..289d0159b041 100644 --- a/arch/x86/um/ptrace_64.c +++ b/arch/x86/um/ptrace_64.c @@ -11,6 +11,7 @@ #define __FRAME_OFFSETS #include <asm/ptrace.h> #include <linux/uaccess.h> +#include <registers.h> #include <asm/ptrace-abi.h> /* diff --git a/arch/x86/um/shared/sysdep/syscalls_64.h b/arch/x86/um/shared/sysdep/syscalls_64.h index 8a7d5e1da98e..48d6cd12f8a5 100644 --- a/arch/x86/um/shared/sysdep/syscalls_64.h +++ b/arch/x86/um/shared/sysdep/syscalls_64.h @@ -23,9 +23,6 @@ extern syscall_handler_t *sys_call_table[]; UPT_SYSCALL_ARG5(®s->regs), \ UPT_SYSCALL_ARG6(®s->regs))) -extern long old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff); extern syscall_handler_t sys_modify_ldt; extern syscall_handler_t sys_arch_prctl; diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c index 7c11c9e5d7ea..263e1d08f216 100644 --- a/arch/x86/um/signal.c +++ b/arch/x86/um/signal.c @@ -12,6 +12,7 @@ #include <linux/uaccess.h> #include <asm/ucontext.h> #include <frame_kern.h> +#include <registers.h> #include <skas.h> #ifdef CONFIG_X86_32 diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c index 0575decb5e54..89df5d89d664 100644 --- a/arch/x86/um/sys_call_table_32.c +++ b/arch/x86/um/sys_call_table_32.c @@ -9,8 +9,6 @@ #include <linux/cache.h> #include <asm/syscall.h> -#define __NO_STUBS - /* * Below you can see, in terms of #define's, the differences between the x86-64 * and the UML syscall table. @@ -23,8 +21,6 @@ #define sys_vm86old sys_ni_syscall #define sys_vm86 sys_ni_syscall -#define old_mmap sys_old_mmap - #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) #define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c index 95725b5a41ac..b0b4cfd2308c 100644 --- a/arch/x86/um/sys_call_table_64.c +++ b/arch/x86/um/sys_call_table_64.c @@ -9,8 +9,6 @@ #include <linux/cache.h> #include <asm/syscall.h> -#define __NO_STUBS - /* * Below you can see, in terms of #define's, the differences between the x86-64 * and the UML syscall table. @@ -20,21 +18,6 @@ #define sys_iopl sys_ni_syscall #define sys_ioperm sys_ni_syscall -/* - * The UML TLS problem. Note that x86_64 does not implement this, so the below - * is needed only for the ia32 compatibility. - */ - -/* On UML we call it this way ("old" means it's not mmap2) */ -#define sys_mmap old_mmap - -#define stub_clone sys_clone -#define stub_fork sys_fork -#define stub_vfork sys_vfork -#define stub_execve sys_execve -#define stub_execveat sys_execveat -#define stub_rt_sigreturn sys_rt_sigreturn - #define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); #include <asm/syscalls_64.h> diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c index 58f51667e2e4..fe5323f0c42d 100644 --- a/arch/x86/um/syscalls_64.c +++ b/arch/x86/um/syscalls_64.c @@ -10,7 +10,9 @@ #include <linux/syscalls.h> #include <linux/uaccess.h> #include <asm/prctl.h> /* XXX This should get the constants from libc */ +#include <registers.h> #include <os.h> +#include <registers.h> long arch_prctl(struct task_struct *task, int option, unsigned long __user *arg2) @@ -35,7 +37,7 @@ long arch_prctl(struct task_struct *task, int option, switch (option) { case ARCH_SET_FS: case ARCH_SET_GS: - ret = restore_registers(pid, ¤t->thread.regs.regs); + ret = restore_pid_registers(pid, ¤t->thread.regs.regs); if (ret) return ret; break; @@ -87,3 +89,13 @@ void arch_switch_to(struct task_struct *to) arch_prctl(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs); } + +SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, + unsigned long, prot, unsigned long, flags, + unsigned long, fd, unsigned long, off) +{ + if (off & ~PAGE_MASK) + return -EINVAL; + + return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); +} diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index d5c9d886cd9f..ef481c3d9019 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -924,6 +924,9 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent) sb->s_op = &hostfs_sbops; sb->s_d_op = &simple_dentry_operations; sb->s_maxbytes = MAX_LFS_FILESIZE; + err = super_setup_bdi(sb); + if (err) + goto out; /* NULL is printed as '(null)' by printf(): avoid that. */ if (req_root == NULL) diff --git a/include/asm-generic/logic_io.h b/include/asm-generic/logic_io.h index a53116b8c57e..8a59b6e567df 100644 --- a/include/asm-generic/logic_io.h +++ b/include/asm-generic/logic_io.h @@ -34,7 +34,7 @@ void __iomem *ioremap(phys_addr_t offset, size_t size); #define iounmap iounmap -void iounmap(void __iomem *addr); +void iounmap(void volatile __iomem *addr); #define __raw_readb __raw_readb u8 __raw_readb(const volatile void __iomem *addr); diff --git a/lib/logic_iomem.c b/lib/logic_iomem.c index 9bdfde0c0f86..8c3365f26e51 100644 --- a/lib/logic_iomem.c +++ b/lib/logic_iomem.c @@ -21,15 +21,15 @@ struct logic_iomem_area { #define AREA_SHIFT 24 #define MAX_AREA_SIZE (1 << AREA_SHIFT) -#define MAX_AREAS ((1ULL<<32) / MAX_AREA_SIZE) +#define MAX_AREAS ((1U << 31) / MAX_AREA_SIZE) #define AREA_BITS ((MAX_AREAS - 1) << AREA_SHIFT) #define AREA_MASK (MAX_AREA_SIZE - 1) #ifdef CONFIG_64BIT #define IOREMAP_BIAS 0xDEAD000000000000UL #define IOREMAP_MASK 0xFFFFFFFF00000000UL #else -#define IOREMAP_BIAS 0 -#define IOREMAP_MASK 0 +#define IOREMAP_BIAS 0x80000000UL +#define IOREMAP_MASK 0x80000000UL #endif static DEFINE_MUTEX(regions_mtx); @@ -76,10 +76,10 @@ static void __iomem *real_ioremap(phys_addr_t offset, size_t size) return NULL; } -static void real_iounmap(void __iomem *addr) +static void real_iounmap(volatile void __iomem *addr) { WARN(1, "invalid iounmap for addr 0x%llx\n", - (unsigned long long __force)addr); + (unsigned long long)(uintptr_t __force)addr); } #endif /* CONFIG_LOGIC_IOMEM_FALLBACK */ @@ -149,7 +149,7 @@ get_area(const volatile void __iomem *addr) return NULL; } -void iounmap(void __iomem *addr) +void iounmap(volatile void __iomem *addr) { struct logic_iomem_area *area = get_area(addr); @@ -173,7 +173,7 @@ EXPORT_SYMBOL(iounmap); static u##sz real_raw_read ## op(const volatile void __iomem *addr) \ { \ WARN(1, "Invalid read" #op " at address %llx\n", \ - (unsigned long long __force)addr); \ + (unsigned long long)(uintptr_t __force)addr); \ return (u ## sz)~0ULL; \ } \ \ @@ -181,7 +181,8 @@ static void real_raw_write ## op(u ## sz val, \ volatile void __iomem *addr) \ { \ WARN(1, "Invalid writeq" #op " of 0x%llx at address %llx\n", \ - (unsigned long long)val, (unsigned long long __force)addr);\ + (unsigned long long)val, \ + (unsigned long long)(uintptr_t __force)addr);\ } \ MAKE_FALLBACK(b, 8); @@ -194,14 +195,14 @@ MAKE_FALLBACK(q, 64); static void real_memset_io(volatile void __iomem *addr, int value, size_t size) { WARN(1, "Invalid memset_io at address 0x%llx\n", - (unsigned long long __force)addr); + (unsigned long long)(uintptr_t __force)addr); } static void real_memcpy_fromio(void *buffer, const volatile void __iomem *addr, size_t size) { WARN(1, "Invalid memcpy_fromio at address 0x%llx\n", - (unsigned long long __force)addr); + (unsigned long long)(uintptr_t __force)addr); memset(buffer, 0xff, size); } @@ -210,7 +211,7 @@ static void real_memcpy_toio(volatile void __iomem *addr, const void *buffer, size_t size) { WARN(1, "Invalid memcpy_toio at address 0x%llx\n", - (unsigned long long __force)addr); + (unsigned long long)(uintptr_t __force)addr); } #endif /* CONFIG_LOGIC_IOMEM_FALLBACK */ |