#define KERNEL_TSB_SIZE_BYTES (32 * 1024)
#define KERNEL_TSB_NENTRIES \
(KERNEL_TSB_SIZE_BYTES / 16)
+#define KERNEL_TSB4M_NENTRIES 4096
/* Do a kernel TSB lookup at tl>0 on VADDR+TAG, branch to OK_LABEL
* on TSB hit. REG1, REG2, REG3, and REG4 are used as temporaries
be,a,pt %xcc, OK_LABEL; \
mov REG4, REG1;
+ /* This version uses a trick, the TAG is already (VADDR >> 22) so
+ * we can make use of that for the index computation.
+ */
+#define KERN_TSB4M_LOOKUP_TL1(TAG, REG1, REG2, REG3, REG4, OK_LABEL) \
+ sethi %hi(swapper_4m_tsb), REG1; \
+ or REG1, %lo(swapper_4m_tsb), REG1; \
+ and TAG, (KERNEL_TSB_NENTRIES - 1), REG2; \
+ sllx REG2, 4, REG2; \
+ add REG1, REG2, REG2; \
+ KTSB_LOAD_QUAD(REG2, REG3); \
+ cmp REG3, TAG; \
+ be,a,pt %xcc, OK_LABEL; \
+ mov REG4, REG1;
+
#endif /* !(_SPARC64_TSB_H) */