[kvm-unit-tests,v7,09/18] powerpc/ppc64: start skeleton framework
diff mbox

Message ID 1456750072-7524-10-git-send-email-drjones@redhat.com
State Accepted
Headers show

Commit Message

Andrew Jones Feb. 29, 2016, 12:47 p.m. UTC
Use the arm/arm64 framework as a template to start a skeleton
for powerpc/ppc64. Copy the arm makefiles and linker script
verbatim. We'll modify them for powerpc with the next patch,
making it clear what needs to be changed.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
---
 configure                   |  2 ++
 lib/powerpc/.gitignore      |  1 +
 lib/powerpc/io.c            | 20 +++++++++++++
 lib/ppc64/.gitignore        |  1 +
 lib/ppc64/asm-offsets.c     | 12 ++++++++
 lib/ppc64/asm/asm-offsets.h |  1 +
 lib/ppc64/asm/io.h          |  5 ++++
 lib/ppc64/asm/page.h        |  1 +
 lib/ppc64/asm/spinlock.h    | 11 +++++++
 lib/ppc64/spinlock.c        | 11 +++++++
 powerpc/Makefile            |  1 +
 powerpc/Makefile.common     | 73 +++++++++++++++++++++++++++++++++++++++++++++
 powerpc/Makefile.ppc64      | 20 +++++++++++++
 powerpc/cstart64.S          | 20 +++++++++++++
 powerpc/flat.lds            | 27 +++++++++++++++++
 powerpc/selftest.c          |  7 +++++
 16 files changed, 213 insertions(+)
 create mode 100644 lib/powerpc/.gitignore
 create mode 100644 lib/powerpc/io.c
 create mode 100644 lib/ppc64/.gitignore
 create mode 100644 lib/ppc64/asm-offsets.c
 create mode 100644 lib/ppc64/asm/asm-offsets.h
 create mode 100644 lib/ppc64/asm/io.h
 create mode 100644 lib/ppc64/asm/page.h
 create mode 100644 lib/ppc64/asm/spinlock.h
 create mode 100644 lib/ppc64/spinlock.c
 create mode 100644 powerpc/Makefile
 create mode 100644 powerpc/Makefile.common
 create mode 100644 powerpc/Makefile.ppc64
 create mode 100644 powerpc/cstart64.S
 create mode 100644 powerpc/flat.lds
 create mode 100644 powerpc/selftest.c

Patch
diff mbox

diff --git a/configure b/configure
index 078b70ce096a6..b367224093369 100755
--- a/configure
+++ b/configure
@@ -80,6 +80,8 @@  if [ "$arch" = "i386" ] || [ "$arch" = "x86_64" ]; then
     testdir=x86
 elif [ "$arch" = "arm" ] || [ "$arch" = "arm64" ]; then
     testdir=arm
+elif [ "$arch" = "ppc64" ]; then
+    testdir=powerpc
 else
     testdir=$arch
 fi
diff --git a/lib/powerpc/.gitignore b/lib/powerpc/.gitignore
new file mode 100644
index 0000000000000..84872bf197c67
--- /dev/null
+++ b/lib/powerpc/.gitignore
@@ -0,0 +1 @@ 
+asm-offsets.[hs]
diff --git a/lib/powerpc/io.c b/lib/powerpc/io.c
new file mode 100644
index 0000000000000..0af45742fc900
--- /dev/null
+++ b/lib/powerpc/io.c
@@ -0,0 +1,20 @@ 
+/*
+ * Each architecture must implement puts() and exit().
+ *
+ * Copyright (C) 2016, Red Hat Inc, Andrew Jones <drjones@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.
+ */
+#include <libcflat.h>
+
+void io_init(void)
+{
+}
+
+void puts(const char *s __unused)
+{
+}
+
+void exit(int code __unused)
+{
+}
diff --git a/lib/ppc64/.gitignore b/lib/ppc64/.gitignore
new file mode 100644
index 0000000000000..84872bf197c67
--- /dev/null
+++ b/lib/ppc64/.gitignore
@@ -0,0 +1 @@ 
+asm-offsets.[hs]
diff --git a/lib/ppc64/asm-offsets.c b/lib/ppc64/asm-offsets.c
new file mode 100644
index 0000000000000..2d38a716976f2
--- /dev/null
+++ b/lib/ppc64/asm-offsets.c
@@ -0,0 +1,12 @@ 
+/*
+ * Copyright (C) 2016, Red Hat Inc, Andrew Jones <drjones@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.
+ */
+#include <libcflat.h>
+#include <kbuild.h>
+
+int main(void)
+{
+	return 0;
+}
diff --git a/lib/ppc64/asm/asm-offsets.h b/lib/ppc64/asm/asm-offsets.h
new file mode 100644
index 0000000000000..d370ee36a182b
--- /dev/null
+++ b/lib/ppc64/asm/asm-offsets.h
@@ -0,0 +1 @@ 
+#include <generated/asm-offsets.h>
diff --git a/lib/ppc64/asm/io.h b/lib/ppc64/asm/io.h
new file mode 100644
index 0000000000000..c0801d4762ba6
--- /dev/null
+++ b/lib/ppc64/asm/io.h
@@ -0,0 +1,5 @@ 
+#ifndef _ASMPPC64_IO_H_
+#define _ASMPPC64_IO_H_
+#define __cpu_is_be() (1)
+#include <asm-generic/io.h>
+#endif
diff --git a/lib/ppc64/asm/page.h b/lib/ppc64/asm/page.h
new file mode 100644
index 0000000000000..1a8b62711f288
--- /dev/null
+++ b/lib/ppc64/asm/page.h
@@ -0,0 +1 @@ 
+#include <asm-generic/page.h>
diff --git a/lib/ppc64/asm/spinlock.h b/lib/ppc64/asm/spinlock.h
new file mode 100644
index 0000000000000..002cdb194b1db
--- /dev/null
+++ b/lib/ppc64/asm/spinlock.h
@@ -0,0 +1,11 @@ 
+#ifndef _ASMPPC64_SPINLOCK_H_
+#define _ASMPPC64_SPINLOCK_H_
+
+struct spinlock {
+	int v;
+};
+
+extern void spin_lock(struct spinlock *lock);
+extern void spin_unlock(struct spinlock *lock);
+
+#endif /* _ASMPPC64_SPINLOCK_H_ */
diff --git a/lib/ppc64/spinlock.c b/lib/ppc64/spinlock.c
new file mode 100644
index 0000000000000..522f8d047c970
--- /dev/null
+++ b/lib/ppc64/spinlock.c
@@ -0,0 +1,11 @@ 
+#include <asm/spinlock.h>
+
+void spin_lock(struct spinlock *lock)
+{
+        lock->v = 1;
+}
+
+void spin_unlock(struct spinlock *lock)
+{
+        lock->v = 0;
+}
diff --git a/powerpc/Makefile b/powerpc/Makefile
new file mode 100644
index 0000000000000..369a38b2d1703
--- /dev/null
+++ b/powerpc/Makefile
@@ -0,0 +1 @@ 
+include $(TEST_DIR)/Makefile.$(ARCH)
diff --git a/powerpc/Makefile.common b/powerpc/Makefile.common
new file mode 100644
index 0000000000000..dd3a0ca327d06
--- /dev/null
+++ b/powerpc/Makefile.common
@@ -0,0 +1,73 @@ 
+#
+# arm common makefile
+#
+# Authors: Andrew Jones <drjones@redhat.com>
+#
+
+ifeq ($(LOADADDR),)
+	# qemu mach-virt default load address
+	LOADADDR = 0x40000000
+endif
+
+tests-common = \
+	$(TEST_DIR)/selftest.flat \
+	$(TEST_DIR)/spinlock-test.flat
+
+all: test_cases
+
+##################################################################
+phys_base = $(LOADADDR)
+
+CFLAGS += -std=gnu99
+CFLAGS += -ffreestanding
+CFLAGS += -Wextra
+CFLAGS += -O2
+CFLAGS += -I lib -I lib/libfdt
+
+asm-offsets = lib/$(ARCH)/asm-offsets.h
+include scripts/asm-offsets.mak
+
+cflatobjs += lib/util.o
+cflatobjs += lib/alloc.o
+cflatobjs += lib/devicetree.o
+cflatobjs += lib/virtio.o
+cflatobjs += lib/virtio-mmio.o
+cflatobjs += lib/chr-testdev.o
+cflatobjs += lib/arm/io.o
+cflatobjs += lib/arm/setup.o
+cflatobjs += lib/arm/mmu.o
+cflatobjs += lib/arm/bitops.o
+cflatobjs += lib/arm/psci.o
+cflatobjs += lib/arm/smp.o
+
+libeabi = lib/arm/libeabi.a
+eabiobjs = lib/arm/eabi_compat.o
+
+libgcc := $(shell $(CC) $(machine) --print-libgcc-file-name)
+start_addr := $(shell printf "%x\n" $$(( $(phys_base) + $(kernel_offset) )))
+
+FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libgcc) $(libeabi)
+%.elf: LDFLAGS = $(CFLAGS) -nostdlib
+%.elf: %.o $(FLATLIBS) arm/flat.lds
+	$(CC) $(LDFLAGS) -o $@ \
+		-Wl,-T,arm/flat.lds,--build-id=none,-Ttext=$(start_addr) \
+		$(filter %.o, $^) $(FLATLIBS)
+
+%.flat: %.elf
+	$(OBJCOPY) -O binary $^ $@
+
+$(libeabi): $(eabiobjs)
+	$(AR) rcs $@ $^
+
+arm_clean: libfdt_clean asm_offsets_clean
+	$(RM) $(TEST_DIR)/*.{o,flat,elf} $(libeabi) $(eabiobjs) \
+	      $(TEST_DIR)/.*.d lib/arm/.*.d
+
+##################################################################
+
+generated_files = $(asm-offsets)
+
+test_cases: $(generated_files) $(tests-common) $(tests)
+
+$(TEST_DIR)/selftest.elf: $(cstart.o) $(TEST_DIR)/selftest.o
+$(TEST_DIR)/spinlock-test.elf: $(cstart.o) $(TEST_DIR)/spinlock-test.o
diff --git a/powerpc/Makefile.ppc64 b/powerpc/Makefile.ppc64
new file mode 100644
index 0000000000000..0b0761c729c7c
--- /dev/null
+++ b/powerpc/Makefile.ppc64
@@ -0,0 +1,20 @@ 
+#
+# arm64 makefile
+#
+# Authors: Andrew Jones <drjones@redhat.com>
+#
+bits = 64
+ldarch = elf64-littleaarch64
+kernel_offset = 0x80000
+
+cstart.o = $(TEST_DIR)/cstart64.o
+cflatobjs += lib/arm64/processor.o
+cflatobjs += lib/arm64/spinlock.o
+
+# arm64 specific tests
+tests =
+
+include $(TEST_DIR)/Makefile.common
+
+arch_clean: arm_clean
+	$(RM) lib/arm64/.*.d
diff --git a/powerpc/cstart64.S b/powerpc/cstart64.S
new file mode 100644
index 0000000000000..f90828dee1c19
--- /dev/null
+++ b/powerpc/cstart64.S
@@ -0,0 +1,20 @@ 
+/*
+ * Entry point and assembler functions for ppc64 tests.
+ *
+ * Copyright (C) 2016, Red Hat Inc, Andrew Jones <drjones@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.
+ */
+#define __ASSEMBLY__
+
+.section .init
+
+.globl start
+start:
+	b	halt
+
+.text
+
+.globl halt
+halt:
+1:	b	1b
diff --git a/powerpc/flat.lds b/powerpc/flat.lds
new file mode 100644
index 0000000000000..efdf5d7109ffb
--- /dev/null
+++ b/powerpc/flat.lds
@@ -0,0 +1,27 @@ 
+
+SECTIONS
+{
+    .text : { *(.init) *(.text) *(.text.*) }
+    . = ALIGN(64K);
+    etext = .;
+    .data : {
+        *(.data)
+    }
+    . = ALIGN(16);
+    .rodata : { *(.rodata) }
+    . = ALIGN(16);
+    .bss : { *(.bss) }
+    . = ALIGN(64K);
+    edata = .;
+    . += 64K;
+    . = ALIGN(64K);
+    /*
+     * stack depth is 16K for arm and PAGE_SIZE for arm64, see THREAD_SIZE
+     * sp must be 16 byte aligned for arm64, and 8 byte aligned for arm
+     * sp must always be strictly less than the true stacktop
+     */
+    stackptr = . - 16;
+    stacktop = .;
+}
+
+ENTRY(start)
diff --git a/powerpc/selftest.c b/powerpc/selftest.c
new file mode 100644
index 0000000000000..2f2a5215dd55c
--- /dev/null
+++ b/powerpc/selftest.c
@@ -0,0 +1,7 @@ 
+#include <libcflat.h>
+
+int main(void)
+{
+	printf("hello world\n");
+	return 0;
+}