Revert "MIPS: Allow ASID size to be determined at boot time."

This reverts commit d532f3d26716a39dfd4b88d687bd344fbe77e390.

The original commit has several problems:

1) Doesn't work with 64-bit kernels.

2) Calls TLBMISS_HANDLER_SETUP() before the code is generated.

3) Calls TLBMISS_HANDLER_SETUP() twice in per_cpu_trap_init() when
   only one call is needed.

[ralf@linux-mips.org: Also revert the bits of the ASID patch which were
hidden in the KVM merge.]

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: "Steven J. Hill" <Steven.Hill@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/5242/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c
index 8327698b9937..91615c2ef0cf 100644
--- a/arch/mips/lib/r3k_dump_tlb.c
+++ b/arch/mips/lib/r3k_dump_tlb.c
@@ -9,7 +9,6 @@
 #include <linux/mm.h>
 
 #include <asm/mipsregs.h>
-#include <asm/mmu_context.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/tlbdebug.h>
@@ -22,7 +21,7 @@ static void dump_tlb(int first, int last)
         unsigned int asid;
         unsigned long entryhi, entrylo0;
 
-        asid = ASID_MASK(read_c0_entryhi());
+        asid = read_c0_entryhi() & 0xfc0;
 
         for (i = first; i <= last; i++) {
                 write_c0_index(i<<8);
@@ -36,7 +35,7 @@ static void dump_tlb(int first, int last)
 
                 /* Unused entries have a virtual address of KSEG0.  */
                 if ((entryhi & 0xffffe000) != 0x80000000
-                    && (ASID_MASK(entryhi) == asid)) {
+                    && (entryhi & 0xfc0) == asid) {
                         /*
                          * Only print entries in use
                          */
@@ -45,7 +44,7 @@ static void dump_tlb(int first, int last)
                         printk("va=%08lx asid=%08lx"
                                "  [pa=%06lx n=%d d=%d v=%d g=%d]",
                                (entryhi & 0xffffe000),
-                               ASID_MASK(entryhi),
+                               entryhi & 0xfc0,
                                entrylo0 & PAGE_MASK,
                                (entrylo0 & (1 << 11)) ? 1 : 0,
                                (entrylo0 & (1 << 10)) ? 1 : 0,