Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 148 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_uc_fw.h b/drivers/gpu/drm/i915/intel_uc_fw.h
new file mode 100644
index 000000000..87910aa83
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_uc_fw.h
@@ -0,0 +1,148 @@
+/*
+ * Copyright © 2014-2017 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ */
+
+#ifndef _INTEL_UC_FW_H_
+#define _INTEL_UC_FW_H_
+
+struct drm_printer;
+struct drm_i915_private;
+struct i915_vma;
+
+/* Home of GuC, HuC and DMC firmwares */
+#define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915"
+
+enum intel_uc_fw_status {
+	INTEL_UC_FIRMWARE_FAIL = -1,
+	INTEL_UC_FIRMWARE_NONE = 0,
+	INTEL_UC_FIRMWARE_PENDING,
+	INTEL_UC_FIRMWARE_SUCCESS
+};
+
+enum intel_uc_fw_type {
+	INTEL_UC_FW_TYPE_GUC,
+	INTEL_UC_FW_TYPE_HUC
+};
+
+/*
+ * This structure encapsulates all the data needed during the process
+ * of fetching, caching, and loading the firmware image into the uC.
+ */
+struct intel_uc_fw {
+	const char *path;
+	size_t size;
+	struct drm_i915_gem_object *obj;
+	enum intel_uc_fw_status fetch_status;
+	enum intel_uc_fw_status load_status;
+
+	/*
+	 * The firmware build process will generate a version header file with major and
+	 * minor version defined. The versions are built into CSS header of firmware.
+	 * i915 kernel driver set the minimal firmware version required per platform.
+	 */
+	u16 major_ver_wanted;
+	u16 minor_ver_wanted;
+	u16 major_ver_found;
+	u16 minor_ver_found;
+
+	enum intel_uc_fw_type type;
+	u32 header_size;
+	u32 header_offset;
+	u32 rsa_size;
+	u32 rsa_offset;
+	u32 ucode_size;
+	u32 ucode_offset;
+};
+
+static inline
+const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
+{
+	switch (status) {
+	case INTEL_UC_FIRMWARE_FAIL:
+		return "FAIL";
+	case INTEL_UC_FIRMWARE_NONE:
+		return "NONE";
+	case INTEL_UC_FIRMWARE_PENDING:
+		return "PENDING";
+	case INTEL_UC_FIRMWARE_SUCCESS:
+		return "SUCCESS";
+	}
+	return "<invalid>";
+}
+
+static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
+{
+	switch (type) {
+	case INTEL_UC_FW_TYPE_GUC:
+		return "GuC";
+	case INTEL_UC_FW_TYPE_HUC:
+		return "HuC";
+	}
+	return "uC";
+}
+
+static inline
+void intel_uc_fw_init(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)
+{
+	uc_fw->path = NULL;
+	uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
+	uc_fw->load_status = INTEL_UC_FIRMWARE_NONE;
+	uc_fw->type = type;
+}
+
+static inline bool intel_uc_fw_is_selected(struct intel_uc_fw *uc_fw)
+{
+	return uc_fw->path != NULL;
+}
+
+static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw)
+{
+	if (uc_fw->load_status == INTEL_UC_FIRMWARE_SUCCESS)
+		uc_fw->load_status = INTEL_UC_FIRMWARE_PENDING;
+}
+
+/**
+ * intel_uc_fw_get_upload_size() - Get size of firmware needed to be uploaded.
+ * @uc_fw: uC firmware.
+ *
+ * Get the size of the firmware and header that will be uploaded to WOPCM.
+ *
+ * Return: Upload firmware size, or zero on firmware fetch failure.
+ */
+static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
+{
+	if (uc_fw->fetch_status != INTEL_UC_FIRMWARE_SUCCESS)
+		return 0;
+
+	return uc_fw->header_size + uc_fw->ucode_size;
+}
+
+void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
+		       struct intel_uc_fw *uc_fw);
+int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,
+		       int (*xfer)(struct intel_uc_fw *uc_fw,
+				   struct i915_vma *vma));
+void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
+void intel_uc_fw_dump(const struct intel_uc_fw *uc_fw, struct drm_printer *p);
+
+#endif