1 files changed, 74 insertions, 0 deletions
diff --git a/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_smc.c b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_smc.c
new file mode 100755
index 0000000..43175c8
--- /dev/null
+++ b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_smc.c
@@ -0,0 +1,74 @@
+/*
+ *
+ * (C) COPYRIGHT 2015 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.
+ *
+ */
+
+
+
+#ifdef CONFIG_ARM64
+
+#include <mali_kbase.h>
+#include <mali_kbase_smc.h>
+
+#include <linux/compiler.h>
+
+static noinline u64 invoke_smc_fid(u64 function_id,
+		u64 arg0, u64 arg1, u64 arg2)
+{
+	register u64 x0 asm("x0") = function_id;
+	register u64 x1 asm("x1") = arg0;
+	register u64 x2 asm("x2") = arg1;
+	register u64 x3 asm("x3") = arg2;
+
+	asm volatile(
+			__asmeq("%0", "x0")
+			__asmeq("%1", "x1")
+			__asmeq("%2", "x2")
+			__asmeq("%3", "x3")
+			"smc    #0\n"
+			: "+r" (x0)
+			: "r" (x1), "r" (x2), "r" (x3));
+
+	return x0;
+}
+
+u64 kbase_invoke_smc_fid(u32 fid, u64 arg0, u64 arg1, u64 arg2)
+{
+	/* Is fast call (bit 31 set) */
+	KBASE_DEBUG_ASSERT(fid & ~SMC_FAST_CALL);
+	/* bits 16-23 must be zero for fast calls */
+	KBASE_DEBUG_ASSERT((fid & (0xFF << 16)) == 0);
+
+	return invoke_smc_fid(fid, arg0, arg1, arg2);
+}
+
+u64 kbase_invoke_smc(u32 oen, u16 function_number, bool smc64,
+		u64 arg0, u64 arg1, u64 arg2)
+{
+	u32 fid = 0;
+
+	/* Only the six bits allowed should be used. */
+	KBASE_DEBUG_ASSERT((oen & ~SMC_OEN_MASK) == 0);
+
+	fid |= SMC_FAST_CALL; /* Bit 31: Fast call */
+	if (smc64)
+		fid |= SMC_64; /* Bit 30: 1=SMC64, 0=SMC32 */
+	fid |= oen; /* Bit 29:24: OEN */
+	/* Bit 23:16: Must be zero for fast calls */
+	fid |= (function_number); /* Bit 15:0: function number */
+
+	return kbase_invoke_smc_fid(fid, arg0, arg1, arg2);
+}
+
+#endif /* CONFIG_ARM64 */
+