soc/intel/common/block: Add Intel common Graphics controller support

SoC need to select specific macros to compile common
graphics code.

Change-Id: Idbc73854ce9fc21a8a3e3663a98e01fc94d5a5e4
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/22614
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/include/intelblocks/graphics.h b/src/soc/intel/common/block/include/intelblocks/graphics.h
new file mode 100644
index 0000000000..f489e27a7b
--- /dev/null
+++ b/src/soc/intel/common/block/include/intelblocks/graphics.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef SOC_INTEL_COMMON_BLOCK_GRAPHICS_H
+#define SOC_INTEL_COMMON_BLOCK_GRAPHICS_H
+
+#include <device/device.h>
+
+/*
+ * SoC overrides
+ *
+ * All new SoC must implement below functionality.
+ */
+
+/*
+ * Perform Graphics Initialization in ramstage
+ * Input:
+ * struct device *dev: device structure
+ */
+void graphics_soc_init(struct device *dev);
+
+/*
+ * Write ASL entry for Graphics opregion
+ * Input:
+ * device_t device: device structure
+ * current: start address of graphics opregion
+ * rsdp: pointer to RSDT (and XSDT) structure
+ *
+ * Output:
+ * End address of graphics opregion so that the called
+ * can use the same for future calls to write_acpi_tables
+ */
+uintptr_t graphics_soc_write_acpi_opregion(struct device *device,
+		uintptr_t current, struct acpi_rsdp *rsdp);
+
+/* Graphics MMIO register read/write APIs */
+uint32_t graphics_gtt_read(unsigned long reg);
+void graphics_gtt_write(unsigned long reg, uint32_t data);
+void graphics_gtt_rmw(unsigned long reg, uint32_t andmask, uint32_t ormask);
+uintptr_t graphics_get_memory_base(void);
+
+#endif	/* SOC_INTEL_COMMON_BLOCK_GRAPHICS_H */