drm/radeon/kms: add dpm support for evergreen (v4)

This adds dpm support for evergreen asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_ucode.h

@@ -65,4 +65,24 @@
 #define RV740_SMC_INT_VECTOR_START   0xffc0
 #define RV740_SMC_INT_VECTOR_SIZE    0x0040
 
+#define CEDAR_SMC_UCODE_START        0x0100
+#define CEDAR_SMC_UCODE_SIZE         0x5d50
+#define CEDAR_SMC_INT_VECTOR_START   0xffc0
+#define CEDAR_SMC_INT_VECTOR_SIZE    0x0040
+
+#define REDWOOD_SMC_UCODE_START      0x0100
+#define REDWOOD_SMC_UCODE_SIZE       0x5f0a
+#define REDWOOD_SMC_INT_VECTOR_START 0xffc0
+#define REDWOOD_SMC_INT_VECTOR_SIZE  0x0040
+
+#define JUNIPER_SMC_UCODE_START      0x0100
+#define JUNIPER_SMC_UCODE_SIZE       0x5f1f
+#define JUNIPER_SMC_INT_VECTOR_START 0xffc0
+#define JUNIPER_SMC_INT_VECTOR_SIZE  0x0040
+
+#define CYPRESS_SMC_UCODE_START      0x0100
+#define CYPRESS_SMC_UCODE_SIZE       0x61f7
+#define CYPRESS_SMC_INT_VECTOR_START 0xffc0
+#define CYPRESS_SMC_INT_VECTOR_SIZE  0x0040
+
 #endif