radv: add initial non-conformant radv vulkan driver

This squashes all the radv development up until now into
one for merging.

History can be found:
https://github.com/airlied/mesa/tree/semi-interesting

This requires llvm 3.9 and is in no way considered
a conformant vulkan implementation. It can run a number
of vulkan applications, and supports all GPUs using
the amdgpu kernel driver.

Thanks to Intel for providing anv and spirv->nir,
and Emil Velikov for reviewing build integration.

Parts of this are:
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>

Authors: Bas Nieuwenhuizen and Dave Airlie
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/amd/common/ac_llvm_util.c

@@ -0,0 +1,142 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/* based on pieces from si_pipe.c and radeon_llvm_emit.c */
+#include "ac_llvm_util.h"
+
+#include <llvm-c/Core.h>
+
+#include "c11/threads.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+static void ac_init_llvm_target()
+{
+#if HAVE_LLVM < 0x0307
+	LLVMInitializeR600TargetInfo();
+	LLVMInitializeR600Target();
+	LLVMInitializeR600TargetMC();
+	LLVMInitializeR600AsmPrinter();
+#else
+	LLVMInitializeAMDGPUTargetInfo();
+	LLVMInitializeAMDGPUTarget();
+	LLVMInitializeAMDGPUTargetMC();
+	LLVMInitializeAMDGPUAsmPrinter();
+#endif
+}
+
+static once_flag ac_init_llvm_target_once_flag = ONCE_FLAG_INIT;
+
+static LLVMTargetRef ac_get_llvm_target(const char *triple)
+{
+	LLVMTargetRef target = NULL;
+	char *err_message = NULL;
+
+	call_once(&ac_init_llvm_target_once_flag, ac_init_llvm_target);
+
+	if (LLVMGetTargetFromTriple(triple, &target, &err_message)) {
+		fprintf(stderr, "Cannot find target for triple %s ", triple);
+		if (err_message) {
+			fprintf(stderr, "%s\n", err_message);
+		}
+		LLVMDisposeMessage(err_message);
+		return NULL;
+	}
+	return target;
+}
+
+static const char *ac_get_llvm_processor_name(enum radeon_family family)
+{
+	switch (family) {
+	case CHIP_TAHITI:
+		return "tahiti";
+	case CHIP_PITCAIRN:
+		return "pitcairn";
+	case CHIP_VERDE:
+		return "verde";
+	case CHIP_OLAND:
+		return "oland";
+	case CHIP_HAINAN:
+		return "hainan";
+	case CHIP_BONAIRE:
+		return "bonaire";
+	case CHIP_KABINI:
+		return "kabini";
+	case CHIP_KAVERI:
+		return "kaveri";
+	case CHIP_HAWAII:
+		return "hawaii";
+	case CHIP_MULLINS:
+		return "mullins";
+	case CHIP_TONGA:
+		return "tonga";
+	case CHIP_ICELAND:
+		return "iceland";
+	case CHIP_CARRIZO:
+		return "carrizo";
+#if HAVE_LLVM <= 0x0307
+	case CHIP_FIJI:
+		return "tonga";
+	case CHIP_STONEY:
+		return "carrizo";
+#else
+	case CHIP_FIJI:
+		return "fiji";
+	case CHIP_STONEY:
+		return "stoney";
+#endif
+#if HAVE_LLVM <= 0x0308
+	case CHIP_POLARIS10:
+		return "tonga";
+	case CHIP_POLARIS11:
+		return "tonga";
+#else
+	case CHIP_POLARIS10:
+		return "polaris10";
+	case CHIP_POLARIS11:
+		return "polaris11";
+#endif
+	default:
+		return "";
+	}
+}
+
+LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family)
+{
+	assert(family >= CHIP_TAHITI);
+
+	const char *triple = "amdgcn--";
+	LLVMTargetRef target = ac_get_llvm_target(triple);
+	LLVMTargetMachineRef tm = LLVMCreateTargetMachine(
+	                             target,
+	                             triple,
+	                             ac_get_llvm_processor_name(family),
+	                             "+DumpCode,+vgpr-spilling",
+	                             LLVMCodeGenLevelDefault,
+	                             LLVMRelocDefault,
+	                             LLVMCodeModelDefault);
+
+	return tm;
+}