diff options
| -rw-r--r-- | arch/mips/kernel/vpe.c | 100 |
1 files changed, 44 insertions, 56 deletions
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 97fefcc..06be405 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -58,10 +58,6 @@ typedef void *vpe_handle; -// defined here because the kernel module loader doesn't have -// anything to do with it. -#define SHN_MIPS_SCOMMON 0xff03 - #ifndef ARCH_SHF_SMALL #define ARCH_SHF_SMALL 0 #endif @@ -69,11 +65,8 @@ typedef void *vpe_handle; /* If this is set, the section belongs in the init part of the module */ #define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1)) -// temp number, -#define VPE_MAJOR 63 - static char module_name[] = "vpe"; -static int major = 0; +static int major; /* grab the likely amount of memory we will need. */ #ifdef CONFIG_MIPS_VPE_LOADER_TOM @@ -98,22 +91,7 @@ enum tc_state { TC_STATE_DYNAMIC }; -struct vpe; -typedef struct tc { - enum tc_state state; - int index; - - /* parent VPE */ - struct vpe *pvpe; - - /* The list of TC's with this VPE */ - struct list_head tc; - - /* The global list of tc's */ - struct list_head list; -} tc_t; - -typedef struct vpe { +struct vpe { enum vpe_state state; /* (device) minor associated with this vpe */ @@ -135,7 +113,21 @@ typedef struct vpe { /* shared symbol address */ void *shared_ptr; -} vpe_t; +}; + +struct tc { + enum tc_state state; + int index; + + /* parent VPE */ + struct vpe *pvpe; + + /* The list of TC's with this VPE */ + struct list_head tc; + + /* The global list of tc's */ + struct list_head list; +}; struct vpecontrol_ { /* Virtual processing elements */ @@ -146,7 +138,7 @@ struct vpecontrol_ { } vpecontrol; static void release_progmem(void *ptr); -static void dump_vpe(vpe_t * v); +static void dump_vpe(struct vpe * v); extern void save_gp_address(unsigned int secbase, unsigned int rel); /* get the vpe associated with this minor */ @@ -197,13 +189,11 @@ struct vpe *alloc_vpe(int minor) { struct vpe *v; - if ((v = kmalloc(sizeof(struct vpe), GFP_KERNEL)) == NULL) { + if ((v = kzalloc(sizeof(struct vpe), GFP_KERNEL)) == NULL) { printk(KERN_WARNING "VPE: alloc_vpe no mem\n"); return NULL; } - memset(v, 0, sizeof(struct vpe)); - INIT_LIST_HEAD(&v->tc); list_add_tail(&v->list, &vpecontrol.vpe_list); @@ -216,13 +206,11 @@ struct tc *alloc_tc(int index) { struct tc *t; - if ((t = kmalloc(sizeof(struct tc), GFP_KERNEL)) == NULL) { + if ((t = kzalloc(sizeof(struct tc), GFP_KERNEL)) == NULL) { printk(KERN_WARNING "VPE: alloc_tc no mem\n"); return NULL; } - memset(t, 0, sizeof(struct tc)); - INIT_LIST_HEAD(&t->tc); list_add_tail(&t->list, &vpecontrol.tc_list); @@ -412,16 +400,17 @@ static int apply_r_mips_26(struct module *me, uint32_t *location, return -ENOEXEC; } -/* Not desperately convinced this is a good check of an overflow condition - anyway. But it gets in the way of handling undefined weak symbols which - we want to set to zero. - if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { - printk(KERN_ERR - "module %s: relocation overflow\n", - me->name); - return -ENOEXEC; - } -*/ +/* + * Not desperately convinced this is a good check of an overflow condition + * anyway. But it gets in the way of handling undefined weak symbols which + * we want to set to zero. + * if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { + * printk(KERN_ERR + * "module %s: relocation overflow\n", + * me->name); + * return -ENOEXEC; + * } + */ *location = (*location & ~0x03ffffff) | ((*location + (v >> 2)) & 0x03ffffff); @@ -681,7 +670,7 @@ static void dump_tclist(void) } /* We are prepared so configure and start the VPE... */ -int vpe_run(vpe_t * v) +int vpe_run(struct vpe * v) { unsigned long val; struct tc *t; @@ -772,7 +761,7 @@ int vpe_run(vpe_t * v) return 0; } -static unsigned long find_vpe_symbols(vpe_t * v, Elf_Shdr * sechdrs, +static unsigned long find_vpe_symbols(struct vpe * v, Elf_Shdr * sechdrs, unsigned int symindex, const char *strtab, struct module *mod) { @@ -792,10 +781,12 @@ static unsigned long find_vpe_symbols(vpe_t * v, Elf_Shdr * sechdrs, return 0; } -/* Allocates a VPE with some program code space(the load address), copies the contents - of the program (p)buffer performing relocatations/etc, free's it when finished. +/* + * Allocates a VPE with some program code space(the load address), copies + * the contents of the program (p)buffer performing relocatations/etc, + * free's it when finished. */ -int vpe_elfload(vpe_t * v) +int vpe_elfload(struct vpe * v) { Elf_Ehdr *hdr; Elf_Shdr *sechdrs; @@ -931,7 +922,7 @@ cleanup: return err; } -static void dump_vpe(vpe_t * v) +static void dump_vpe(struct vpe * v) { struct tc *t; @@ -947,7 +938,7 @@ static void dump_vpe(vpe_t * v) static int vpe_open(struct inode *inode, struct file *filp) { int minor; - vpe_t *v; + struct vpe *v; /* assume only 1 device at the mo. */ if ((minor = MINOR(inode->i_rdev)) != 1) { @@ -1001,7 +992,7 @@ static int vpe_open(struct inode *inode, struct file *filp) static int vpe_release(struct inode *inode, struct file *filp) { int minor, ret = 0; - vpe_t *v; + struct vpe *v; Elf_Ehdr *hdr; minor = MINOR(inode->i_rdev); @@ -1035,7 +1026,7 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer, { int minor; size_t ret = count; - vpe_t *v; + struct vpe *v; minor = MINOR(file->f_dentry->d_inode->i_rdev); if ((v = get_vpe(minor)) == NULL) @@ -1180,14 +1171,11 @@ static int __init vpe_module_init(void) return -ENODEV; } - if ((major = register_chrdev(VPE_MAJOR, module_name, &vpe_fops) < 0)) { + if ((major = register_chrdev(0, module_name, &vpe_fops) < 0)) { printk("VPE loader: unable to register character device\n"); - return -EBUSY; + return major; } - if (major == 0) - major = VPE_MAJOR; - dmt(); dvpe(); |