[PATCH 3/7] drm/amdgpu: introduce graphics object id helpers.

[Dave Airlie <airlied@gmail.com>]

From: Dave Airlie <airlied@redhat.com>

DAL hides these inside the bios parser, we need them separate to
use here, so copy them over. I'll add more to this as I go.

This also needs the ones to translate objects back that aren't
in here currently.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/amd/amdgpu/Makefile                |   3 +-
 .../drm/amd/amdgpu/amdgpu_grph_object_id_helpers.c | 183 +++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h           |   2 +
 3 files changed, 187 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_grph_object_id_helpers.c

diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index c7fcdce..376d08a 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -23,7 +23,8 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
 	amdgpu_pm.o atombios_dp.o amdgpu_afmt.o amdgpu_trace_points.o \
 	atombios_encoders.o amdgpu_sa.o atombios_i2c.o \
 	amdgpu_prime.o amdgpu_vm.o amdgpu_ib.o amdgpu_pll.o \
-	amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o
+	amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o \
+	amdgpu_grph_object_id_helpers.o
 
 # add asic specific block
 amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_grph_object_id_helpers.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_grph_object_id_helpers.c
new file mode 100644
index 0000000..c916d93
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_grph_object_id_helpers.c
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2012-15 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, sublicense,
+ * 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 above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "amdgpu.h"
+#include "atom.h"
+#include "display_grph_object_id.h"
+
+/* these are taken from AMD's DAL bios parser code */
+
+static uint32_t gpu_id_from_bios_object_id(uint32_t bios_object_id)
+{
+	return (bios_object_id & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
+}
+
+static enum connector_id connector_id_from_bios_object_id(uint32_t bios_object_id)
+{
+	uint32_t bios_connector_id = gpu_id_from_bios_object_id(bios_object_id);
+
+	enum connector_id id;
+
+	switch (bios_connector_id) {
+	case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I:
+		id = CONNECTOR_ID_SINGLE_LINK_DVII;
+		break;
+	case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I:
+		id = CONNECTOR_ID_DUAL_LINK_DVII;
+		break;
+	case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D:
+		id = CONNECTOR_ID_SINGLE_LINK_DVID;
+		break;
+	case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D:
+		id = CONNECTOR_ID_DUAL_LINK_DVID;
+		break;
+	case CONNECTOR_OBJECT_ID_VGA:
+		id = CONNECTOR_ID_VGA;
+		break;
+	case CONNECTOR_OBJECT_ID_HDMI_TYPE_A:
+		id = CONNECTOR_ID_HDMI_TYPE_A;
+		break;
+	case CONNECTOR_OBJECT_ID_LVDS:
+		id = CONNECTOR_ID_LVDS;
+		break;
+	case CONNECTOR_OBJECT_ID_PCIE_CONNECTOR:
+		id = CONNECTOR_ID_PCIE;
+		break;
+	case CONNECTOR_OBJECT_ID_HARDCODE_DVI:
+		id = CONNECTOR_ID_HARDCODE_DVI;
+		break;
+	case CONNECTOR_OBJECT_ID_DISPLAYPORT:
+		id = CONNECTOR_ID_DISPLAY_PORT;
+		break;
+	case CONNECTOR_OBJECT_ID_eDP:
+		id = CONNECTOR_ID_EDP;
+		break;
+	case CONNECTOR_OBJECT_ID_MXM:
+		id = CONNECTOR_ID_MXM;
+		break;
+	default:
+		id = CONNECTOR_ID_UNKNOWN;
+		break;
+	}
+
+	return id;
+}
+
+static enum object_enum_id enum_id_from_bios_object_id(uint32_t bios_object_id)
+{
+	uint32_t bios_enum_id =
+			(bios_object_id & ENUM_ID_MASK) >> ENUM_ID_SHIFT;
+	enum object_enum_id id;
+
+	switch (bios_enum_id) {
+	case GRAPH_OBJECT_ENUM_ID1:
+		id = ENUM_ID_1;
+		break;
+	case GRAPH_OBJECT_ENUM_ID2:
+		id = ENUM_ID_2;
+		break;
+	case GRAPH_OBJECT_ENUM_ID3:
+		id = ENUM_ID_3;
+		break;
+	case GRAPH_OBJECT_ENUM_ID4:
+		id = ENUM_ID_4;
+		break;
+	case GRAPH_OBJECT_ENUM_ID5:
+		id = ENUM_ID_5;
+		break;
+	case GRAPH_OBJECT_ENUM_ID6:
+		id = ENUM_ID_6;
+		break;
+	case GRAPH_OBJECT_ENUM_ID7:
+		id = ENUM_ID_7;
+		break;
+	default:
+		id = ENUM_ID_UNKNOWN;
+		break;
+	}
+
+	return id;
+}
+
+static enum object_type object_type_from_bios_object_id(uint32_t bios_object_id)
+{
+	uint32_t bios_object_type = (bios_object_id & OBJECT_TYPE_MASK)
+				>> OBJECT_TYPE_SHIFT;
+	enum object_type object_type;
+
+	switch (bios_object_type) {
+	case GRAPH_OBJECT_TYPE_GPU:
+		object_type = OBJECT_TYPE_GPU;
+		break;
+	case GRAPH_OBJECT_TYPE_ENCODER:
+		object_type = OBJECT_TYPE_ENCODER;
+		break;
+	case GRAPH_OBJECT_TYPE_CONNECTOR:
+		object_type = OBJECT_TYPE_CONNECTOR;
+		break;
+	case GRAPH_OBJECT_TYPE_ROUTER:
+		object_type = OBJECT_TYPE_ROUTER;
+		break;
+	case GRAPH_OBJECT_TYPE_GENERIC:
+		object_type = OBJECT_TYPE_GENERIC;
+		break;
+	default:
+		object_type = OBJECT_TYPE_UNKNOWN;
+		break;
+	}
+
+	return object_type;
+}
+
+static uint32_t id_from_bios_object_id(enum object_type type,
+				       uint32_t bios_object_id)
+{
+	switch (type) {
+	case OBJECT_TYPE_CONNECTOR:
+		return (uint32_t)connector_id_from_bios_object_id(bios_object_id);
+	default:
+		return 0;
+	}
+}
+
+struct graphics_object_id amdgpu_object_id_from_bios_object_id(uint32_t bios_object_id)
+{
+	enum object_type type;
+	enum object_enum_id enum_id;
+	struct graphics_object_id go_id = { 0 };
+
+	type = object_type_from_bios_object_id(bios_object_id);
+	if (OBJECT_TYPE_UNKNOWN == type)
+		return go_id;
+
+	enum_id = enum_id_from_bios_object_id(bios_object_id);
+	if (ENUM_ID_UNKNOWN == enum_id)
+		return go_id;
+
+	go_id = display_graphics_object_id_init(
+			id_from_bios_object_id(type, bios_object_id), enum_id, type);
+
+	return go_id;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
index 4b80978..adf10c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
@@ -595,4 +595,6 @@ int amdgpu_crtc_page_flip(struct drm_crtc *crtc,
 			  uint32_t page_flip_flags);
 extern const struct drm_mode_config_funcs amdgpu_mode_funcs;
 
+/* amdgpu_grph_object_id_helpers.c */
+struct graphics_object_id amdgpu_object_id_from_bios_object_id(uint32_t bios_object_id);
 #endif
-- 
2.5.5

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