MFC r257648, r257649, r257660:

  Begin reducing code duplication in arm pmap.c and pmap-v6.c by factoring
  out common code related to mapping device memory into a new devmap.c file.

  Remove the growing duplication of code that used pmap_devmap_find_pa() and
  then did some math with the returned results to generate a virtual address,
  and likewise in reverse to get a physical address.  Now there are a pair
  of functions, arm_devmap_vtop() and arm_devmap_ptov(), to do that.  The
  bus_space_map() implementations are rewritten in terms of these.

  Move remaining code and data related to static device mapping into the
  new devmap.[ch] files.  Emphasize the MD nature of these things by using
  the prefix arm_devmap_ on the function and type names (already a few of
  these things found their way into MI code, hopefully it will be harder to
  do by accident in the future).

3 files changed, 10 insertions, 7 deletions

diff --git a/sys/arm/mv/mv_localbus.c b/sys/arm/mv/mv_localbus.c
index 09f9348..363a2b7 100644
--- a/sys/arm/mv/mv_localbus.c
+++ b/sys/arm/mv/mv_localbus.c
@@ -37,6 +37,9 @@ __FBSDID("$FreeBSD$");
 #include <sys/rman.h>
 #include <sys/malloc.h>
 
+#include <vm/vm.h>
+
+#include <machine/devmap.h>
 #include <machine/fdt.h>
 
 #include <dev/ofw/ofw_bus.h>
@@ -380,7 +383,7 @@ localbus_get_devinfo(device_t bus, device_t child)
 }
 
 int
-fdt_localbus_devmap(phandle_t dt_node, struct pmap_devmap *fdt_devmap,
+fdt_localbus_devmap(phandle_t dt_node, struct arm_devmap_entry *fdt_devmap,
     int banks_max_num, int *banks_added)
 {
 	pcell_t ranges[MV_LOCALBUS_MAX_BANKS * MV_LOCALBUS_MAX_BANK_CELLS];
diff --git a/sys/arm/mv/mv_machdep.c b/sys/arm/mv/mv_machdep.c
index 8dfeb7b..5002839 100644
--- a/sys/arm/mv/mv_machdep.c
+++ b/sys/arm/mv/mv_machdep.c
@@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
 #include <vm/pmap.h>
 
 #include <machine/bus.h>
+#include <machine/devmap.h>
 #include <machine/machdep.h>
 
 #include <arm/mv/mvreg.h>	/* XXX */
@@ -245,12 +246,12 @@ initarm_late_init(void)
 }
 
 #define FDT_DEVMAP_MAX	(MV_WIN_CPU_MAX + 2)
-static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = {
+static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = {
 	{ 0, 0, 0, 0, 0, }
 };
 
 static int
-platform_sram_devmap(struct pmap_devmap *map)
+platform_sram_devmap(struct arm_devmap_entry *map)
 {
 #if !defined(SOC_MV_ARMADAXP)
 	phandle_t child, root;
@@ -295,10 +296,10 @@ out:
  * real implementation of this function in dev/fdt/fdt_pci.c overrides the weak
  * alias defined here.
  */
-int mv_default_fdt_pci_devmap(phandle_t node, struct pmap_devmap *devmap,
+int mv_default_fdt_pci_devmap(phandle_t node, struct arm_devmap_entry *devmap,
     vm_offset_t io_va, vm_offset_t mem_va);
 int
-mv_default_fdt_pci_devmap(phandle_t node, struct pmap_devmap *devmap,
+mv_default_fdt_pci_devmap(phandle_t node, struct arm_devmap_entry *devmap,
     vm_offset_t io_va, vm_offset_t mem_va)
 {
 
@@ -322,7 +323,7 @@ platform_devmap_init(void)
 	int i, num_mapped;
 
 	i = 0;
-	pmap_devmap_bootstrap_table = &fdt_devmap[0];
+	arm_devmap_register_table(&fdt_devmap[0]);
 
 	/*
 	 * IMMR range.
diff --git a/sys/arm/mv/mvvar.h b/sys/arm/mv/mvvar.h
index 754541f..54abf46 100644
--- a/sys/arm/mv/mvvar.h
+++ b/sys/arm/mv/mvvar.h
@@ -66,7 +66,6 @@ struct decode_win {
 	vm_paddr_t	remap;
 };
 
-extern const struct pmap_devmap pmap_devmap[];
 extern const struct gpio_config mv_gpio_config[];
 extern const struct decode_win *cpu_wins;
 extern const struct decode_win *idma_wins;