summaryrefslogtreecommitdiff
path: root/arch/mips/kernel/vpe.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/kernel/vpe.c')
-rw-r--r--arch/mips/kernel/vpe.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 39804c584ed..2794501ff30 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -269,7 +269,7 @@ static void *alloc_progmem(unsigned long len)
* This means you must tell Linux to use less memory than you
* physically have, for example by passing a mem= boot argument.
*/
- addr = pfn_to_kaddr(max_pfn);
+ addr = pfn_to_kaddr(max_low_pfn);
memset(addr, 0, len);
#else
/* simple grab some mem for now */
@@ -781,10 +781,15 @@ static int vpe_run(struct vpe * v)
/* take system out of configuration state */
clear_c0_mvpcontrol(MVPCONTROL_VPC);
+ /*
+ * SMTC/SMVP kernels manage VPE enable independently,
+ * but uniprocessor kernels need to turn it on, even
+ * if that wasn't the pre-dvpe() state.
+ */
#ifdef CONFIG_SMP
- evpe(EVPE_ENABLE);
-#else
evpe(vpeflags);
+#else
+ evpe(EVPE_ENABLE);
#endif
emt(dmt_flag);
local_irq_restore(flags);
@@ -840,7 +845,7 @@ static int vpe_elfload(struct vpe * v)
/* Sanity checks against insmoding binaries or wrong arch,
weird elf version */
- if (memcmp(hdr->e_ident, ELFMAG, 4) != 0
+ if (memcmp(hdr->e_ident, ELFMAG, SELFMAG) != 0
|| (hdr->e_type != ET_REL && hdr->e_type != ET_EXEC)
|| !elf_check_arch(hdr)
|| hdr->e_shentsize != sizeof(*sechdrs)) {
@@ -947,12 +952,14 @@ static int vpe_elfload(struct vpe * v)
struct elf_phdr *phdr = (struct elf_phdr *) ((char *)hdr + hdr->e_phoff);
for (i = 0; i < hdr->e_phnum; i++) {
- if (phdr->p_type != PT_LOAD)
- continue;
-
- memcpy((void *)phdr->p_paddr, (char *)hdr + phdr->p_offset, phdr->p_filesz);
- memset((void *)phdr->p_paddr + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz);
- phdr++;
+ if (phdr->p_type == PT_LOAD) {
+ memcpy((void *)phdr->p_paddr,
+ (char *)hdr + phdr->p_offset,
+ phdr->p_filesz);
+ memset((void *)phdr->p_paddr + phdr->p_filesz,
+ 0, phdr->p_memsz - phdr->p_filesz);
+ }
+ phdr++;
}
for (i = 0; i < hdr->e_shnum; i++) {
@@ -1107,7 +1114,7 @@ static int vpe_release(struct inode *inode, struct file *filp)
return -ENODEV;
hdr = (Elf_Ehdr *) v->pbuffer;
- if (memcmp(hdr->e_ident, ELFMAG, 4) == 0) {
+ if (memcmp(hdr->e_ident, ELFMAG, SELFMAG) == 0) {
if (vpe_elfload(v) >= 0) {
vpe_run(v);
} else {