ANDROID: trusty: move to external standalone repo

It does not make sense for Trusty repo to stay with SoC
specific modules in soc/gs.

Additionally following changes are required to build
successfully and compile.

Bug: 271907961
Change-Id: Ie7b37603531079fdda4421b3a35af5294ee1158f
Signed-off-by: Ji Soo Shin <jisshin@google.com>

7 files changed, 73 insertions, 5 deletions

diff --git a/BUILD.bazel b/BUILD.bazel
new file mode 100644
index 0000000..e7a74b1
--- /dev/null
+++ b/BUILD.bazel
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+
+load("//build/kernel/kleaf:kernel.bzl", "kernel_module")
+
+filegroup(
+    name = "headers",
+    srcs = glob([
+        "include/**/*.h",
+    ]),
+    visibility = [
+        "//private/google-modules/aoc:__pkg__",
+        "//private/google-modules/hdcp/samsung:__pkg__",
+        "//private/google-modules/soc/gs:__pkg__",
+    ],
+)
+
+filegroup(
+    name = "trusty.kconfig",
+    srcs = glob([
+        "drivers/trusty/Kconfig",
+    ]),
+    visibility = [
+        "//private/devices/google:__subpackages__",
+        "//private/google-modules/soc/gs:__pkg__",
+    ],
+)
+
+kernel_module(
+    name = "trusty",
+    srcs = glob([
+        "drivers/trusty/*.c",
+        "drivers/trusty/*.h",
+        "drivers/trusty/*.S",
+        "drivers/trusty/Kbuild",
+        "Kbuild",
+    ]) + [
+        "//private/google-modules/soc/gs:gs_soc_headers",
+        "//private/google-modules/trusty:headers",
+    ],
+    outs = [
+        "trusty-core.ko",
+        "trusty-ipc.ko",
+        "trusty-log.ko",
+        "trusty-test.ko",
+        "trusty-virtio.ko",
+    ],
+    kernel_build = "//private/google-modules/soc/gs:gs_kernel_build",
+    visibility = [
+        "//private/devices/google:__subpackages__",
+        "//private/google-modules/hdcp/samsung:__pkg__",
+        "//private/google-modules/soc/gs:__pkg__",
+    ],
+)
diff --git a/Kbuild b/Kbuild
new file mode 100644
index 0000000..7bb445c
--- /dev/null
+++ b/Kbuild
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+subdir-ccflags-y += -I$(srctree)/$(src)/include
+
+obj-y += drivers/trusty/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..8e4db7f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+M ?= $(shell pwd)
+
+KBASE_PATH_RELATIVE = $(M)
+
+EXTRA_CFLAGS += -Werror
+
+include $(KERNEL_SRC)/../private/google-modules/soc/gs/Makefile.include
+
+modules modules_install clean:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) W=1 \
+	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" KBUILD_EXTRA_SYMBOLS="$(EXTRA_SYMBOLS)" $(@)
diff --git a/drivers/trusty/Kbuild b/drivers/trusty/Kbuild
index 538352f..1efdd13 100644
--- a/drivers/trusty/Kbuild
+++ b/drivers/trusty/Kbuild
@@ -4,9 +4,7 @@
 #
 
 # Needed for the trace points
-CFLAGS_trusty.o = -I$(srctree)/$(src)
-CFLAGS_trusty-irq.o = -I$(srctree)/$(src)
-CFLAGS_trusty-ipc.o = -I$(srctree)/$(src)
+ccflags-y += -I$(srctree)/$(src)/
 
 obj-$(CONFIG_TRUSTY)		+= trusty-core.o
 trusty-core-objs		+= trusty.o trusty-mem.o trusty-sched-share.o
diff --git a/drivers/trusty/trusty-log.c b/drivers/trusty/trusty-log.c
index 0c5a121..425441f 100644
--- a/drivers/trusty/trusty-log.c
+++ b/drivers/trusty/trusty-log.c
@@ -677,7 +677,7 @@ static int trusty_log_sfile_dev_release(struct inode *inode,
 	return 0;
 }
 
-ssize_t trusty_log_sfile_dev_read(struct file *filp, char __user *buf,
+static ssize_t trusty_log_sfile_dev_read(struct file *filp, char __user *buf,
 				  size_t size, loff_t *ppos)
 {
 	struct seq_file *sfile;
diff --git a/drivers/trusty/trusty-sched-share-api.h b/drivers/trusty/trusty-sched-share-api.h
index 412704a..58c76d7 100644
--- a/drivers/trusty/trusty-sched-share-api.h
+++ b/drivers/trusty/trusty-sched-share-api.h
@@ -21,7 +21,7 @@ void trusty_unregister_sched_share(struct trusty_sched_share_state *sched_share_
 void trusty_free_sched_share(struct trusty_sched_share_state *sched_share_state);
 
 int trusty_get_requested_nice(unsigned int cpu_num, struct trusty_sched_share_state *tcpu_state);
-int trusty_set_actual_nice(unsigned int cpu_num, struct trusty_sched_share_state *tcpu_state,
+void trusty_set_actual_nice(unsigned int cpu_num, struct trusty_sched_share_state *tcpu_state,
 		int nice);
 
 #endif /* _TRUSTY_SCHED_SHARE_API_H_ */
diff --git a/drivers/trusty/trusty-sched-share.c b/drivers/trusty/trusty-sched-share.c
index 3670bf4..07b0d7e 100644
--- a/drivers/trusty/trusty-sched-share.c
+++ b/drivers/trusty/trusty-sched-share.c
@@ -12,6 +12,7 @@
 #include <linux/scatterlist.h>
 #include <linux/trusty/trusty.h>
 #include "trusty-sched-share.h"
+#include "trusty-sched-share-api.h"
 
 /**
  * struct trusty_sched_share_state - Trusty share resources state local to Trusty-Driver