Use a contrived 'tlb_entry' structure for passing the mappings for the

kernel text and data from the loader to the kernel, so that the tte format
is not part of the loader->kernel ABI.

7 files changed, 31 insertions, 23 deletions

diff --git a/sys/boot/sparc64/loader/locore.S b/sys/boot/sparc64/loader/locore.S
index 9ad5346..c1b3e2b 100644
--- a/sys/boot/sparc64/loader/locore.S
+++ b/sys/boot/sparc64/loader/locore.S
@@ -92,7 +92,6 @@ ENTRY(dtlb_va_to_pa)
 ENTRY(itlb_enter)
 	rdpr	%pstate, %o4
 	wrpr	%o4, PSTATE_IE, %pstate
-	sllx	%o0, PAGE_SHIFT, %o0
 	mov	AA_IMMU_TAR, %o3
 	stxa	%o0, [%o3] ASI_IMMU
 	stxa	%o1, [%g0] ASI_ITLB_DATA_IN_REG
@@ -103,7 +102,6 @@ ENTRY(itlb_enter)
 ENTRY(dtlb_enter)
 	rdpr	%pstate, %o4
 	wrpr	%o4, PSTATE_IE, %pstate
-	sllx	%o0, PAGE_SHIFT, %o0
 	mov	AA_DMMU_TAR, %o3
 	stxa	%o0, [%o3] ASI_DMMU
 	stxa	%o1, [%g0] ASI_DTLB_DATA_IN_REG
diff --git a/sys/boot/sparc64/loader/main.c b/sys/boot/sparc64/loader/main.c
index c07f138..3d6fffb 100644
--- a/sys/boot/sparc64/loader/main.c
+++ b/sys/boot/sparc64/loader/main.c
@@ -63,8 +63,8 @@ static int mmu_mapin(vm_offset_t, vm_size_t);
 
 char __progname[] = "FreeBSD/sparc64 loader";
 
-struct tte *dtlb_store;
-struct tte *itlb_store;
+struct tlb_entry *dtlb_store;
+struct tlb_entry *itlb_store;
 
 int dtlb_slot;
 int itlb_slot;
@@ -240,7 +240,7 @@ static int
 mmu_mapin(vm_offset_t va, vm_size_t len)
 {
 	vm_offset_t pa, mva;
-	struct tte tte;
+	u_long data;
 
 	if (va + len > curkva)
 		curkva = va + len;
@@ -275,13 +275,16 @@ mmu_mapin(vm_offset_t va, vm_size_t len)
 				panic("mmu_mapin: out of dtlb_slots");
 			if (itlb_slot >= itlb_slot_max)
 				panic("mmu_mapin: out of itlb_slots");
-			tte.tte_vpn = TV_VPN(va);
-			tte.tte_data = TD_V | TD_4M | TD_PA(pa) | TD_L | TD_CP |
+			data = TD_V | TD_4M | TD_PA(pa) | TD_L | TD_CP |
 			    TD_CV | TD_P | TD_W;
-			dtlb_store[dtlb_slot++] = tte;
-			itlb_store[itlb_slot++] = tte;
-			dtlb_enter(tte.tte_vpn, tte.tte_data);
-			itlb_enter(tte.tte_vpn, tte.tte_data);
+			dtlb_store[dtlb_slot].te_pa = pa;
+			dtlb_store[dtlb_slot].te_va = va;
+			itlb_store[itlb_slot].te_pa = pa;
+			itlb_store[itlb_slot].te_va = va;
+			dtlb_slot++;
+			itlb_slot++;
+			dtlb_enter(va, data);
+			itlb_enter(va, data);
 			pa = (vm_offset_t)-1;
 		}
 		len -= len > PAGE_SIZE_4M ? PAGE_SIZE_4M : len;
diff --git a/sys/boot/sparc64/loader/metadata.c b/sys/boot/sparc64/loader/metadata.c
index bb2e47e..88364e3 100644
--- a/sys/boot/sparc64/loader/metadata.c
+++ b/sys/boot/sparc64/loader/metadata.c
@@ -31,15 +31,14 @@
 #include <sys/param.h>
 #include <sys/reboot.h>
 #include <sys/linker.h>
-#include <machine/tte.h>
 
 #include <machine/metadata.h>
 
 #include "bootstrap.h"
 #include "libofw.h"
 
-extern struct tte *dtlb_store;
-extern struct tte *itlb_store;
+extern struct tlb_entry *dtlb_store;
+extern struct tlb_entry *itlb_store;
 
 extern int dtlb_slot;
 extern int itlb_slot;
@@ -318,10 +317,10 @@ md_load(char *args, vm_offset_t *modulep)
     file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof kernend, &kernend);
     file_addmetadata(kfp, MODINFOMD_DTLB_SLOTS, sizeof dtlb_slots, &dtlb_slots);
     file_addmetadata(kfp, MODINFOMD_ITLB_SLOTS, sizeof itlb_slots, &itlb_slots);
-    file_addmetadata(kfp, MODINFOMD_DTLB, dtlb_slots * sizeof(struct tte),
-	dtlb_store);
-    file_addmetadata(kfp, MODINFOMD_ITLB, itlb_slots * sizeof(struct tte),
-	itlb_store);
+    file_addmetadata(kfp, MODINFOMD_DTLB,
+	dtlb_slots * sizeof(*dtlb_store), dtlb_store);
+    file_addmetadata(kfp, MODINFOMD_ITLB,
+	itlb_slots * sizeof(*itlb_store), itlb_store);
 
     *modulep = addr;
     size = md_copymodules(0);
diff --git a/sys/sparc64/include/metadata.h b/sys/sparc64/include/metadata.h
index 11f99c7..a475403 100644
--- a/sys/sparc64/include/metadata.h
+++ b/sys/sparc64/include/metadata.h
@@ -37,6 +37,11 @@
 #define	MODINFOMD_DTLB		0x1006
 #define	MODINFOMD_ITLB		0x1007
 
+struct tlb_entry {
+	vm_offset_t te_pa;
+	vm_offset_t te_va;
+};
+
 #define	MD_FETCH(mdp, info, type) ({ \
 	type *__p; \
 	__p = (type *)preload_search_info((mdp), MODINFO_METADATA | (info)); \
diff --git a/sys/sparc64/include/tlb.h b/sys/sparc64/include/tlb.h
index d92af31..126af86 100644
--- a/sys/sparc64/include/tlb.h
+++ b/sys/sparc64/include/tlb.h
@@ -80,8 +80,10 @@
 
 #define	MMU_SFSR_W			(1L << MMU_SFSR_W_SHIFT)
 
+struct tlb_entry;
+
 extern int kernel_tlb_slots;
-extern struct tte *kernel_ttes;
+extern struct tlb_entry *kernel_tlbs;
 
 void	tlb_context_demap(struct pmap *pm);
 void	tlb_page_demap(u_int tlb, struct pmap *pm, vm_offset_t va);
diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c
index 962929b..477e745 100644
--- a/sys/sparc64/sparc64/machdep.c
+++ b/sys/sparc64/sparc64/machdep.c
@@ -107,7 +107,7 @@
 
 typedef int ofw_vec_t(void *);
 
-struct tte *kernel_ttes;
+struct tlb_entry *kernel_tlbs;
 int kernel_tlb_slots;
 
 int physmem;
@@ -229,7 +229,7 @@ sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec)
 			end = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
 			kernel_tlb_slots = MD_FETCH(kmdp, MODINFOMD_DTLB_SLOTS,
 			    int);
-			kernel_ttes = (struct tte *)preload_search_info(kmdp,
+			kernel_tlbs = (void *)preload_search_info(kmdp,
 			    MODINFO_METADATA | MODINFOMD_DTLB);
 		}
 	}
diff --git a/sys/sparc64/sparc64/pmap.c b/sys/sparc64/sparc64/pmap.c
index 27b4ae2..8ef2eb8 100644
--- a/sys/sparc64/sparc64/pmap.c
+++ b/sys/sparc64/sparc64/pmap.c
@@ -94,6 +94,7 @@
 #include <machine/cache.h>
 #include <machine/frame.h>
 #include <machine/md_var.h>
+#include <machine/metadata.h>
 #include <machine/pv.h>
 #include <machine/smp.h>
 #include <machine/tlb.h>
@@ -310,8 +311,8 @@ pmap_bootstrap(vm_offset_t ekva)
 	 * pmap_kextract() will work for them.
 	 */
 	for (i = 0; i < kernel_tlb_slots; i++) {
-		va = TTE_GET_VA(&kernel_ttes[i]);
-		pa = TTE_GET_PA(&kernel_ttes[i]);
+		pa = kernel_tlbs[i].te_pa;
+		va = kernel_tlbs[i].te_va;
 		for (off = 0; off < PAGE_SIZE_4M; off += PAGE_SIZE) {
 			tp = tsb_kvtotte(va + off);
 			tp->tte_vpn = TV_VPN(va + off);