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authorRichard Henderson <rth@twiddle.net>2016-07-08 12:19:32 -0700
committerRichard Henderson <rth@twiddle.net>2016-07-08 12:58:55 -0700
commit7e9a7c50d9a400ef51242d661a261123c2cc9485 (patch)
treee9f57a47518a8d2d41829fc0e3d21b37dd38327a /cputlb.c
parent4f4a9ca4a4386c137301b3662faba076455ff15a (diff)
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cputlb: Move VICTIM_TLB_HIT out of line
There are currently 22 invocations of this function, and we're about to increase that number. Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'cputlb.c')
-rw-r--r--cputlb.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/cputlb.c b/cputlb.c
index 079e4979ca..7518544e12 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -498,6 +498,35 @@ tb_page_addr_t get_page_addr_code(CPUArchState *env1, target_ulong addr)
return qemu_ram_addr_from_host_nofail(p);
}
+/* Return true if ADDR is present in the victim tlb, and has been copied
+ back to the main tlb. */
+static bool victim_tlb_hit(CPUArchState *env, size_t mmu_idx, size_t index,
+ size_t elt_ofs, target_ulong page)
+{
+ size_t vidx;
+ for (vidx = 0; vidx < CPU_VTLB_SIZE; ++vidx) {
+ CPUTLBEntry *vtlb = &env->tlb_v_table[mmu_idx][vidx];
+ target_ulong cmp = *(target_ulong *)((uintptr_t)vtlb + elt_ofs);
+
+ if (cmp == page) {
+ /* Found entry in victim tlb, swap tlb and iotlb. */
+ CPUTLBEntry tmptlb, *tlb = &env->tlb_table[mmu_idx][index];
+ CPUIOTLBEntry tmpio, *io = &env->iotlb[mmu_idx][index];
+ CPUIOTLBEntry *vio = &env->iotlb_v[mmu_idx][vidx];
+
+ tmptlb = *tlb; *tlb = *vtlb; *vtlb = tmptlb;
+ tmpio = *io; *io = *vio; *vio = tmpio;
+ return true;
+ }
+ }
+ return false;
+}
+
+/* Macro to call the above, with local variables from the use context. */
+#define VICTIM_TLB_HIT(TY) \
+ victim_tlb_hit(env, mmu_idx, index, offsetof(CPUTLBEntry, TY), \
+ addr & TARGET_PAGE_MASK)
+
#define MMUSUFFIX _mmu
#define SHIFT 0