#
# Copyright (C) 2010-2011 ARM Limited. All rights reserved.
# 
# This program is free software and is provided to you under the terms of the GNU General Public License version 2
# as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
# 
# A copy of the licence is included with the program, and can also be obtained from Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#

# The Makefile sets up "arch" based on the CONFIG, creates the version info
# string and the __malidrv_build_info.c file, and then call the Linux build
# system to actually build the driver. After that point the Kbuild file takes
# over.

# set up defaults if not defined by the user
ARCH ?= arm

OSKOS=linux
FILES_PREFIX=

# This conditional makefile exports the global definition ARM_INTERNAL_BUILD. Customer releases will not include arm_internal.mak
-include ../../../arm_internal.mak

ifneq ($(USING_HWMEM),1)
ifeq ($(USING_UMP),1)
	UMP_SYMVERS_FILE = ../ump/Module.symvers
	KBUILD_EXTRA_SYMBOLS = $(CURDIR)/$(UMP_SYMVERS_FILE)
endif
endif

# Get any user defined KDIR-<names> or maybe even a hardcoded KDIR
-include KDIR_CONFIGURATION

# Define host system directory
KDIR-$(shell uname -m):=/lib/modules/$(shell uname -r)/build

ifeq ($(ARCH), arm)
	# when compiling for ARM we're cross compiling
	export CROSS_COMPILE ?= arm-none-linux-gnueabi-
	# default to Virtex5
	CONFIG ?= pb-virtex5-m200
else
	# Compiling for the host
	CONFIG ?= $(shell uname -m)
endif

# default cpu to select
CPU ?= pb11mp

# look up KDIR based om CPU selection
KDIR ?= $(KDIR-$(CPU))

# validate lookup result
ifeq ($(KDIR),)
$(error No KDIR found for platform $(CPU))
endif

# report detected/selected settings
ifdef ARM_INTERNAL_BUILD
$(warning Config $(CONFIG))
$(warning Host CPU $(CPU))
$(warning OS_MEMORY $(USING_OS_MEMORY))
endif

all: $(UMP_SYMVERS_FILE)
	$(MAKE) ARCH=$(ARCH) -C $(KDIR) M=$(CURDIR) CONFIG_GPU_MALI=m modules
	@rm $(FILES_PREFIX)__malidrv_build_info.c $(FILES_PREFIX)__malidrv_build_info.o

clean:
	$(MAKE) ARCH=$(ARCH) -C $(KDIR) M=$(CURDIR) clean

kernelrelease:
	$(MAKE) -C $(KDIR) kernelrelease

export CONFIG KBUILD_EXTRA_SYMBOLS