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authorEdgar E. Iglesias <edgar.iglesias@xilinx.com>2018-04-16 21:03:01 +0200
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2018-05-29 09:35:14 +0200
commitd2f004c3cdcb786303057683252112c3ff7b337e (patch)
tree5b9c75b2975c2f595ac1da513c9af02bc9895be9 /target
parent96716533afa039b4698360af221a8c399367f91d (diff)
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target-microblaze: mmu: Prepare for 64-bit addresses
Prepare for 64-bit addresses. This makes no functional difference as the upper parts of the 64-bit addresses are not yet reachable. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'target')
-rw-r--r--target/microblaze/mmu.c14
-rw-r--r--target/microblaze/mmu.h6
2 files changed, 10 insertions, 10 deletions
diff --git a/target/microblaze/mmu.c b/target/microblaze/mmu.c
index 231803c..a379968 100644
--- a/target/microblaze/mmu.c
+++ b/target/microblaze/mmu.c
@@ -81,16 +81,16 @@ unsigned int mmu_translate(struct microblaze_mmu *mmu,
{
unsigned int i, hit = 0;
unsigned int tlb_ex = 0, tlb_wr = 0, tlb_zsel;
- unsigned int tlb_size;
- uint32_t tlb_tag, tlb_rpn, mask, t0;
+ uint64_t tlb_tag, tlb_rpn, mask;
+ uint32_t tlb_size, t0;
lu->err = ERR_MISS;
for (i = 0; i < ARRAY_SIZE(mmu->rams[RAM_TAG]); i++) {
- uint32_t t, d;
+ uint64_t t, d;
/* Lookup and decode. */
t = mmu->rams[RAM_TAG][i];
- D(qemu_log("TLB %d valid=%d\n", i, t & TLB_VALID));
+ D(qemu_log("TLB %d valid=%" PRId64 "\n", i, t & TLB_VALID));
if (t & TLB_VALID) {
tlb_size = tlb_decode_size((t & TLB_PAGESZ_MASK) >> 7);
if (tlb_size < TARGET_PAGE_SIZE) {
@@ -98,10 +98,10 @@ unsigned int mmu_translate(struct microblaze_mmu *mmu,
abort();
}
- mask = ~(tlb_size - 1);
+ mask = ~((uint64_t)tlb_size - 1);
tlb_tag = t & TLB_EPN_MASK;
if ((vaddr & mask) != (tlb_tag & mask)) {
- D(qemu_log("TLB %d vaddr=%x != tag=%x\n",
+ D(qemu_log("TLB %d vaddr=%" PRIx64 " != tag=%" PRIx64 "\n",
i, vaddr & mask, tlb_tag & mask));
continue;
}
@@ -173,7 +173,7 @@ unsigned int mmu_translate(struct microblaze_mmu *mmu,
}
}
done:
- D(qemu_log("MMU vaddr=%x rw=%d tlb_wr=%d tlb_ex=%d hit=%d\n",
+ D(qemu_log("MMU vaddr=%" PRIx64 " rw=%d tlb_wr=%d tlb_ex=%d hit=%d\n",
vaddr, rw, tlb_wr, tlb_ex, hit));
return hit;
}
diff --git a/target/microblaze/mmu.h b/target/microblaze/mmu.h
index 624becf..1714caf 100644
--- a/target/microblaze/mmu.h
+++ b/target/microblaze/mmu.h
@@ -28,7 +28,7 @@
#define RAM_TAG 0
/* Tag portion */
-#define TLB_EPN_MASK 0xFFFFFC00 /* Effective Page Number */
+#define TLB_EPN_MASK MAKE_64BIT_MASK(10, 64 - 10)
#define TLB_PAGESZ_MASK 0x00000380
#define TLB_PAGESZ(x) (((x) & 0x7) << 7)
#define PAGESZ_1K 0
@@ -42,7 +42,7 @@
#define TLB_VALID 0x00000040 /* Entry is valid */
/* Data portion */
-#define TLB_RPN_MASK 0xFFFFFC00 /* Real Page Number */
+#define TLB_RPN_MASK MAKE_64BIT_MASK(10, 64 - 10)
#define TLB_PERM_MASK 0x00000300
#define TLB_EX 0x00000200 /* Instruction execution allowed */
#define TLB_WR 0x00000100 /* Writes permitted */
@@ -63,7 +63,7 @@
struct microblaze_mmu
{
/* Data and tag brams. */
- uint32_t rams[2][TLB_ENTRIES];
+ uint64_t rams[2][TLB_ENTRIES];
/* We keep a separate ram for the tids to avoid the 48 bit tag width. */
uint8_t tids[TLB_ENTRIES];
/* Control flops. */