There are no $t4 or $t5 in N32 but there are $a4 and $a5.

mips_attributes was introduced to work around clang problems with
-msoft-float. Those problems are now fixed and moreover .gnu_attributes
itself is unportable and creates problem with clang.

Revert "mips: Fix soft-float handling."

This partially reverts commit 6a4ecd27.

Add -msoft-float alongside clang arguments to specify ABI.
Specify ABI in asm files explicitly.
This trigers asm warning due to gcc failing to propagate -msoft-float
but it's tolerable.

	setjmp.S uses 12 entries but buffer is declared with only 11 entries.

	gcc < 4.0.
	* include/grub/*/setjmp.h: USe RETURNS_TWICE.

	in belief that RAM on SGI platforms grows down while in fact it
	grows up from an unusual base.

	* grub-core/bus/bonito.c (grub_pci_device_map_range_cached):
	New function.
	(grub_pci_device_unmap_range): Handle non-cached address.
	* grub-core/video/sis315pro.c (framebuffer): Remove render_target and
	add direct_ptr.
	(grub_video_sis315pro_video_fini): Unmap direct_ptr.
	(grub_video_sis315pro_setup): Use cache address and grub_video_fb_setup.
	(grub_video_sis315pro_set_active_render_target): Removed.
	(grub_video_sis315pro_get_info_and_fini): Use uncached address.
	(grub_video_adapter): Use grub_video_fb_set_active_render_target.
	(grub_video_sis315pro_swap_buffers): Call grub_video_fb_swap_buffers and
	sync caches.
	* include/grub/mips/loongson/pci.h (grub_pci_device_map_range_cached):
	New proto.

	* include/grub/mips/qemu_mips/console.h: New file.

	being in .text to avoid dprel references.
	* include/grub/mips/loongson/kernel.h (grub_arch_machine): Likewise.
	* include/grub/mips/loongson/memory.h (grub_arch_memsize): Likewise.
	(grub_arch_highmemsize): Likewise.
	* include/grub/mips/loongson/time.h (grub_arch_busclock): Likewise.
	* include/grub/mips/qemu_mips/memory.h (grub_arch_memsize): Likewise.
	* include/grub/mips/time.h (grub_arch_cpuclock): Likewise.

	* include/grub/mips/kernel.h (grub_halt): Remove redundant declaration.
	* include/grub/mips/qemu_mips/kernel.h (grub_halt): Likewise.
	* include/grub/misc.h (grub_reboot)
	[GRUB_MACHINE_EMU || GRUB_MACHINE_QEMU_MIPS]: Export.
	(grub_halt) [__mips__]: Likewise.

	* grub-core/Makefile.core.def (reboot): Add platform-specific files.
	* grub-core/kern/efi/efi.c (grub_reboot): Moved to ...
	* grub-core/lib/efi/reboot.c: ... here.
	* grub-core/kern/i386/efi/startup.S: Remove including of realmode.S.
	* grub-core/kern/i386/ieee1275/startup.S: Likewise.
	* grub-core/kern/i386/pc/startup.S (grub_exit): Inline cold_reboot.
	* grub-core/kern/i386/realmode.S (grub_reboot): Moved to...
	* grub-core/lib/i386/reboot_trampoline.S: ... here.
	* grub-core/kern/ieee1275/openfw.c (grub_reboot): Moved to...
	* grub-core/lib/ieee1275/reboot.c: ... here.
	* grub-core/kern/mips/arc/init.c (grub_reboot): Moved to...
	* grub-core/lib/mips/arc/reboot.c: ... here.
	* grub-core/kern/mips/loongson/init.c (grub_reboot): Moved to...
	* grub-core/lib/mips/loongson/reboot.c: ...here.
	* grub-core/kern/mips/qemu_mips/init.c (grub_reboot): Moved to...
	* grub-core/lib/mips/qemu_mips/reboot.c: ... here.
	* include/grub/emu/misc.h (grub_reboot): New function declaration.
	* include/grub/i386/reboot.h: New file.
	* include/grub/mips/loongson/ec.h: Fix includes.
	* include/grub/mips/qemu_mips/kernel.h (grub_reboot): Removed.
	* include/grub/misc.h (grub_reboot): Don't mark as kernel function.
	* grub-core/lib/i386/reboot.c: New file.

	define.
	* grub-core/kern/mips/loongson/init.c (grub_machine_init): Check
	that PRID matches the detected subplatform and reset the subplatform
	if it doesn't.

	* grub-core/bus/pci.c (grub_pci_iterate): Remove useless ghost skipping.
	* include/grub/mips/loongson/pci.h (GRUB_LOONGSON_OHCI_GHOST_FUNCTION):
	Removed.
	(GRUB_LOONGSON_EHCI_GHOST_FUNCTION): Likewise.
	(grub_pci_read): Fix bitmask.
	(grub_pci_read_word): Likewise.
	(grub_pci_read_byte): Likewise.
	(grub_pci_write): Likewise.
	(grub_pci_write_word): Likewise.
	(grub_pci_write_byte): Likewise.

	* grub-core/Makefile.core.def (fwstart_fuloong): Rename fwstart_fuloong
	into fwstart_fuloong2f. Use boot/mips/loongson/fuloong2f.S.
	* grub-core/boot/mips/loongson/fuloong.S: Rename to ...
	* grub-core/boot/mips/loongson/fuloong2f.S: ... this.
	(FULOONG): Rename to ...
	(FULOONG2F): ... this. All users updated.
	* grub-core/boot/mips/startup_raw.S (machtype_fuloong_str): Rename to
	(machtype_fuloong2f_str): ... this.
	(machtype_fuloong2e_str): New string.
	Check for machtype_fuloong2e_str.
	* grub-core/loader/mips/linux.c (loongson_machtypes)
	[GRUB_MACHINE_MIPS_LOONGSON]: Add GRUB_ARCH_MACHINE_FULOONG2E.
	* grub-core/term/serial.c (loongson_defserial)
	[GRUB_MACHINE_MIPS_LOONGSON]: New array.
	(grub_serial_register) [GRUB_MACHINE_MIPS_LOONGSON]: Use
	loongson_defserial.
	* include/grub/mips/loongson/kernel.h (GRUB_ARCH_MACHINE_FULOONG):
	Rename to ...
	(GRUB_ARCH_MACHINE_FULOONG2F): ... this.
	(GRUB_ARCH_MACHINE_FULOONG2E): New const.
	* util/grub-mkimage.c (image_target_desc): Rename IMAGE_FULOONG_FLASH
	to IMAGE_FULOONG2F_FLASH. All users updated.
	(image_targets): Rename images.
	* util/grub-mkstandalone.in: Accept fuloong2f and fuloong2e.

	* grub-core/Makefile.core.def (kernel): Add term/i386/pc/vga_text.c,
	term/i386/vga_common.c and kern/vga_init.c on qemu-mips.
	* grub-core/kern/mips/qemu_mips/init.c (grub_machine_init): Init vga
	text.
	* grub-core/kern/i386/qemu/init.c: Renamed to ...
	* grub-core/kern/vga_init.c: ... this.
	* grub-core/kern/vga_init.c (VGA_ADDR) [__mips__]: Adjust.
	(grub_qemu_init_cirrus) [__mips__]: Skip PCI and adjust the I/O base.
	* grub-core/term/i386/pc/vga_text.c (VGA_TEXT_SCREEN) [__mips__]:
	Adjust.
	* include/grub/vga.h [GRUB_MACHINE_MIPS_QEMU_MIPS]: Declare
	GRUB_MACHINE_PCI_IO_BASE.

	* gentpl.py (videoinkernel): Add qemu-mips.
	* grub-core/Makefile.am (KERNEL_HEADER_FILES): Add necessary headers.
	* grub-core/Makefile.core.def (kernel): Add at_keyboard and layout.
	* grub-core/kern/mips/qemu_mips/init.c (grub_machine_init): Init new
	modules.
	* grub-core/term/at_keyboard.c (grub_keyboard_controller_init)
	[GRUB_MACHINE_MIPS_QEMU_MIPS]: Don't consider original set.
	* grub-core/term/serial.c (grub_serial_register)
	[GRUB_MACHINE_MIPS_QEMU_MIPS]: Make com0 explicitly active.

	* grub-core/boot/mips/startup_raw.S [GRUB_MACHINE_MIPS_QEMU_MIPS]:
	Save ram size in $s4.
	* grub-core/kern/mips/qemu_mips/init.c (RAMSIZE): Removed.
	All users changed to grub_arch_memsize.
	* grub-core/kern/mips/startup.S (grub_arch_machine): Restrict to
	Loongson.
	[GRUB_MACHINE_MIPS_QEMU_MIPS]: Save grub_arch_memsize.
	* grub-core/loader/mips/linux.c (grub_linux_boot): Pass memory size.
	* include/grub/mips/qemu_mips/memory.h (grub_arch_memsize): New
	external variable.

	* conf/Makefile.common (CFLAGS_PLATFORM): Add -mflush-func
	=grub_cpu_flush_cache on all mips and not only yeeloong.
	* configure.ac (COND_mips): New conditional.
	* grub-core/Makefile.am (KERNEL_HEADER_FILES): Add libgcc on all
	platforms.
	* grub-core/kern/emu/cache.S (__mips__): Use _flush_cache.
	* grub-core/kern/emu/full.c (grub_arch_dl_init_linker)
	[GRUB_LINKER_HAVE_INIT]: New function.
	(grub_emu_post_init): Likewise.
	* grub-core/kern/emu/lite.c (grub_emu_post_init): Likewise.
	* grub-core/kern/emu/main.c: Use grub_emu_post_init.
	* include/grub/cache.h (_mips): Include mips/cache.h.
	* include/grub/disk.h [GRUB_UTIL || GRUB_MACHINE_EMU]: Add missing
	LVM and RAID prototypes.
	* include/grub/emu/misc.h (grub_emu_post_init): New proto.
	* include/grub/mips/time.h (grub_cpu_idle) [GRUB_MACHINE_EMU]: New
	function.