vga: compile cirrus_vga in hwlib

Remove target dependencies and compile Cirrus VGA in hwlib.

Address masking can be removed since memory API handles that now.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Makefile.objs

@@ -289,6 +289,7 @@ hw-obj-$(CONFIG_VGA_ISA) += vga-isa.o
 hw-obj-$(CONFIG_VGA_ISA_MM) += vga-isa-mm.o
 hw-obj-$(CONFIG_VMWARE_VGA) += vmware_vga.o
 hw-obj-$(CONFIG_VMMOUSE) += vmmouse.o
+hw-obj-$(CONFIG_VGA_CIRRUS) += cirrus_vga.o
 
 hw-obj-$(CONFIG_RC4030) += rc4030.o
 hw-obj-$(CONFIG_DP8393X) += dp8393x.o

Makefile.target

@@ -197,7 +197,6 @@ obj-$(CONFIG_REALLY_VIRTFS) += 9pfs/virtio-9p-device.o
 obj-$(CONFIG_KVM) += kvm.o kvm-all.o
 obj-$(CONFIG_NO_KVM) += kvm-stub.o
 obj-$(CONFIG_VGA) += vga.o
-obj-$(CONFIG_VGA_CIRRUS) += cirrus_vga.o
 obj-y += memory.o savevm.o
 LIBS+=-lz
 

hw/cirrus_vga.c

@@ -618,7 +618,6 @@ static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
     for (y = 0; y < lines; y++) {
 	off_cur = off_begin;
 	off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
-	off_cur &= TARGET_PAGE_MASK;
         memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
 	off_begin += off_pitch;
     }
@@ -1897,8 +1896,6 @@ static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
  *
  *  write mode 4/5
  *
- * assume TARGET_PAGE_SIZE >= 16
- *
  ***************************************/
 
 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,