drm/xe/display: Implement display support

As for display, the intent is to share the display code with the i915
driver so that there is maximum reuse there.

We do this by recompiling i915/display code twice.
Now that i915 has been adapted to support the Xe build, we can add
the xe/display support.

This initial work is a collaboration of many people and unfortunately
this squashed patch won't fully honor the proper credits.
But let's try to add a few from the squashed patches:

Co-developed-by: Matthew Brost <matthew.brost@intel.com>
Co-developed-by: Jani Nikula <jani.nikula@intel.com>
Co-developed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Co-developed-by: Matt Roper <matthew.d.roper@intel.com>
Co-developed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Co-developed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Co-developed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

33 files changed, 1039 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_lmem.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_lmem.h
new file mode 100644
index 000000000000..710cecca972d
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_lmem.h
@@ -0,0 +1 @@
+/* Empty */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_mman.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_mman.h
new file mode 100644
index 000000000000..650ea2803a97
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_mman.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _I915_GEM_MMAN_H_
+#define _I915_GEM_MMAN_H_
+
+#include "xe_bo_types.h"
+#include <drm/drm_prime.h>
+
+static inline int i915_gem_fb_mmap(struct xe_bo *bo, struct vm_area_struct *vma)
+{
+	return drm_gem_prime_mmap(&bo->ttm.base, vma);
+}
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
new file mode 100644
index 000000000000..5f19550cc845
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef _I915_GEM_OBJECT_H_
+#define _I915_GEM_OBJECT_H_
+
+#include <linux/types.h>
+
+#include "xe_bo.h"
+
+#define i915_gem_object_is_shmem(obj) ((obj)->flags & XE_BO_CREATE_SYSTEM_BIT)
+
+static inline dma_addr_t i915_gem_object_get_dma_address(const struct xe_bo *bo, pgoff_t n)
+{
+	/* Should never be called */
+	WARN_ON(1);
+	return n;
+}
+
+static inline bool i915_gem_object_is_tiled(const struct xe_bo *bo)
+{
+	/* legacy tiling is unused */
+	return false;
+}
+
+static inline bool i915_gem_object_is_userptr(const struct xe_bo *bo)
+{
+	/* legacy tiling is unused */
+	return false;
+}
+
+static inline int i915_gem_object_read_from_page(struct xe_bo *bo,
+					  u32 ofs, u64 *ptr, u32 size)
+{
+	struct ttm_bo_kmap_obj map;
+	void *virtual;
+	bool is_iomem;
+	int ret;
+
+	XE_WARN_ON(size != 8);
+
+	ret = xe_bo_lock(bo, true);
+	if (ret)
+		return ret;
+
+	ret = ttm_bo_kmap(&bo->ttm, ofs >> PAGE_SHIFT, 1, &map);
+	if (ret)
+		goto out_unlock;
+
+	ofs &= ~PAGE_MASK;
+	virtual = ttm_kmap_obj_virtual(&map, &is_iomem);
+	if (is_iomem)
+		*ptr = readq((void __iomem *)(virtual + ofs));
+	else
+		*ptr = *(u64 *)(virtual + ofs);
+
+	ttm_bo_kunmap(&map);
+out_unlock:
+	xe_bo_unlock(bo);
+	return ret;
+}
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gt/intel_rps.h b/drivers/gpu/drm/xe/compat-i915-headers/gt/intel_rps.h
new file mode 100644
index 000000000000..21fec9cc837c
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gt/intel_rps.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_RPS_H__
+#define __INTEL_RPS_H__
+
+#define gen5_rps_irq_handler(x) ({})
+
+#endif /* __INTEL_RPS_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_active_types.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_active_types.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_active_types.h
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_config.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_config.h
new file mode 100644
index 000000000000..e835bea08d1b
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_config.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __I915_CONFIG_H__
+#define __I915_CONFIG_H__
+
+#include <linux/sched.h>
+
+struct drm_i915_private;
+
+static inline unsigned long
+i915_fence_timeout(const struct drm_i915_private *i915)
+{
+	return MAX_SCHEDULE_TIMEOUT;
+}
+
+#endif /* __I915_CONFIG_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_debugfs.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_debugfs.h
new file mode 100644
index 000000000000..b4c47617b64b
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_debugfs.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __I915_DEBUGFS_H__
+#define __I915_DEBUGFS_H__
+
+struct drm_i915_gem_object;
+struct seq_file;
+
+static inline void i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) {}
+
+#endif /* __I915_DEBUGFS_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
new file mode 100644
index 000000000000..c3aa5936667a
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
@@ -0,0 +1,230 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+#ifndef _XE_I915_DRV_H_
+#define _XE_I915_DRV_H_
+
+/*
+ * "Adaptation header" to allow i915 display to also build for xe driver.
+ * TODO: refactor i915 and xe so this can cease to exist
+ */
+
+#include <drm/drm_drv.h>
+
+#include "gem/i915_gem_object.h"
+
+#include "soc/intel_pch.h"
+#include "xe_device.h"
+#include "xe_bo.h"
+#include "xe_pm.h"
+#include "xe_step.h"
+#include "i915_gpu_error.h"
+#include "i915_reg_defs.h"
+#include "i915_utils.h"
+#include "intel_step.h"
+#include "intel_uc_fw.h"
+#include "intel_uncore.h"
+#include "intel_runtime_pm.h"
+#include <linux/pm_runtime.h>
+
+static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
+{
+	return container_of(dev, struct drm_i915_private, drm);
+}
+
+static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
+{
+	return dev_get_drvdata(kdev);
+}
+
+
+#define INTEL_JASPERLAKE 0
+#define INTEL_ELKHARTLAKE 0
+#define IS_PLATFORM(xe, x) ((xe)->info.platform == x)
+#define INTEL_INFO(dev_priv)	(&((dev_priv)->info))
+#define INTEL_DEVID(dev_priv)	((dev_priv)->info.devid)
+#define IS_I830(dev_priv)	(dev_priv && 0)
+#define IS_I845G(dev_priv)	(dev_priv && 0)
+#define IS_I85X(dev_priv)	(dev_priv && 0)
+#define IS_I865G(dev_priv)	(dev_priv && 0)
+#define IS_I915G(dev_priv)	(dev_priv && 0)
+#define IS_I915GM(dev_priv)	(dev_priv && 0)
+#define IS_I945G(dev_priv)	(dev_priv && 0)
+#define IS_I945GM(dev_priv)	(dev_priv && 0)
+#define IS_I965G(dev_priv)	(dev_priv && 0)
+#define IS_I965GM(dev_priv)	(dev_priv && 0)
+#define IS_G45(dev_priv)	(dev_priv && 0)
+#define IS_GM45(dev_priv)	(dev_priv && 0)
+#define IS_G4X(dev_priv)	(dev_priv && 0)
+#define IS_PINEVIEW(dev_priv)	(dev_priv && 0)
+#define IS_G33(dev_priv)	(dev_priv && 0)
+#define IS_IRONLAKE(dev_priv)	(dev_priv && 0)
+#define IS_IRONLAKE_M(dev_priv) (dev_priv && 0)
+#define IS_SANDYBRIDGE(dev_priv)	(dev_priv && 0)
+#define IS_IVYBRIDGE(dev_priv)	(dev_priv && 0)
+#define IS_IVB_GT1(dev_priv)	(dev_priv && 0)
+#define IS_VALLEYVIEW(dev_priv)	(dev_priv && 0)
+#define IS_CHERRYVIEW(dev_priv)	(dev_priv && 0)
+#define IS_HASWELL(dev_priv)	(dev_priv && 0)
+#define IS_BROADWELL(dev_priv)	(dev_priv && 0)
+#define IS_SKYLAKE(dev_priv)	(dev_priv && 0)
+#define IS_BROXTON(dev_priv)	(dev_priv && 0)
+#define IS_KABYLAKE(dev_priv)	(dev_priv && 0)
+#define IS_GEMINILAKE(dev_priv)	(dev_priv && 0)
+#define IS_COFFEELAKE(dev_priv)	(dev_priv && 0)
+#define IS_COMETLAKE(dev_priv)	(dev_priv && 0)
+#define IS_ICELAKE(dev_priv)	(dev_priv && 0)
+#define IS_JASPERLAKE(dev_priv)	(dev_priv && 0)
+#define IS_ELKHARTLAKE(dev_priv)	(dev_priv && 0)
+#define IS_TIGERLAKE(dev_priv)	IS_PLATFORM(dev_priv, XE_TIGERLAKE)
+#define IS_ROCKETLAKE(dev_priv)	IS_PLATFORM(dev_priv, XE_ROCKETLAKE)
+#define IS_DG1(dev_priv)        IS_PLATFORM(dev_priv, XE_DG1)
+#define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, XE_ALDERLAKE_S)
+#define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, XE_ALDERLAKE_P)
+#define IS_XEHPSDV(dev_priv) (dev_priv && 0)
+#define IS_DG2(dev_priv)	IS_PLATFORM(dev_priv, XE_DG2)
+#define IS_PONTEVECCHIO(dev_priv) IS_PLATFORM(dev_priv, XE_PVC)
+#define IS_METEORLAKE(dev_priv) IS_PLATFORM(dev_priv, XE_METEORLAKE)
+#define IS_LUNARLAKE(dev_priv) IS_PLATFORM(dev_priv, XE_LUNARLAKE)
+
+#define IS_HASWELL_ULT(dev_priv) (dev_priv && 0)
+#define IS_BROADWELL_ULT(dev_priv) (dev_priv && 0)
+#define IS_BROADWELL_ULX(dev_priv) (dev_priv && 0)
+
+#define IP_VER(ver, rel)                ((ver) << 8 | (rel))
+
+#define INTEL_DISPLAY_ENABLED(xe) (HAS_DISPLAY((xe)) && !intel_opregion_headless_sku((xe)))
+
+#define IS_GRAPHICS_VER(xe, first, last) \
+	((xe)->info.graphics_verx100 >= first * 100 && \
+	 (xe)->info.graphics_verx100 <= (last*100 + 99))
+#define IS_MOBILE(xe) (xe && 0)
+#define HAS_LLC(xe) (!IS_DGFX((xe)))
+
+#define HAS_GMD_ID(xe) GRAPHICS_VERx100(xe) >= 1270
+
+/* Workarounds not handled yet */
+#define IS_DISPLAY_STEP(xe, first, last) ({u8 __step = (xe)->info.step.display; first <= __step && __step <= last; })
+#define IS_GRAPHICS_STEP(xe, first, last) ({u8 __step = (xe)->info.step.graphics; first <= __step && __step <= last; })
+
+#define IS_LP(xe) (0)
+#define IS_GEN9_LP(xe) (0)
+#define IS_GEN9_BC(xe) (0)
+
+#define IS_TIGERLAKE_UY(xe) (xe && 0)
+#define IS_COMETLAKE_ULX(xe) (xe && 0)
+#define IS_COFFEELAKE_ULX(xe) (xe && 0)
+#define IS_KABYLAKE_ULX(xe) (xe && 0)
+#define IS_SKYLAKE_ULX(xe) (xe && 0)
+#define IS_HASWELL_ULX(xe) (xe && 0)
+#define IS_COMETLAKE_ULT(xe) (xe && 0)
+#define IS_COFFEELAKE_ULT(xe) (xe && 0)
+#define IS_KABYLAKE_ULT(xe) (xe && 0)
+#define IS_SKYLAKE_ULT(xe) (xe && 0)
+
+#define IS_DG1_GRAPHICS_STEP(xe, first, last) (IS_DG1(xe) && IS_GRAPHICS_STEP(xe, first, last))
+#define IS_DG2_GRAPHICS_STEP(xe, variant, first, last) \
+	((xe)->info.subplatform == XE_SUBPLATFORM_DG2_ ## variant && \
+	 IS_GRAPHICS_STEP(xe, first, last))
+#define IS_XEHPSDV_GRAPHICS_STEP(xe, first, last) (IS_XEHPSDV(xe) && IS_GRAPHICS_STEP(xe, first, last))
+
+/* XXX: No basedie stepping support yet */
+#define IS_PVC_BD_STEP(xe, first, last) (!WARN_ON(1) && IS_PONTEVECCHIO(xe))
+
+#define IS_TIGERLAKE_DISPLAY_STEP(xe, first, last) (IS_TIGERLAKE(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_ROCKETLAKE_DISPLAY_STEP(xe, first, last) (IS_ROCKETLAKE(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_DG1_DISPLAY_STEP(xe, first, last) (IS_DG1(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_DG2_DISPLAY_STEP(xe, first, last) (IS_DG2(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_ADLP_DISPLAY_STEP(xe, first, last) (IS_ALDERLAKE_P(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_ADLS_DISPLAY_STEP(xe, first, last) (IS_ALDERLAKE_S(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_JSL_EHL_DISPLAY_STEP(xe, first, last) (IS_JSL_EHL(xe) && IS_DISPLAY_STEP(xe, first, last))
+#define IS_MTL_DISPLAY_STEP(xe, first, last) (IS_METEORLAKE(xe) && IS_DISPLAY_STEP(xe, first, last))
+
+/* FIXME: Add subplatform here */
+#define IS_MTL_GRAPHICS_STEP(xe, sub, first, last) (IS_METEORLAKE(xe) && IS_DISPLAY_STEP(xe, first, last))
+
+#define IS_DG2_G10(xe) ((xe)->info.subplatform == XE_SUBPLATFORM_DG2_G10)
+#define IS_DG2_G11(xe) ((xe)->info.subplatform == XE_SUBPLATFORM_DG2_G11)
+#define IS_DG2_G12(xe) ((xe)->info.subplatform == XE_SUBPLATFORM_DG2_G12)
+#define IS_RAPTORLAKE_U(xe) ((xe)->info.subplatform == XE_SUBPLATFORM_ALDERLAKE_P_RPLU)
+#define IS_ICL_WITH_PORT_F(xe) (xe && 0)
+#define HAS_FLAT_CCS(xe) (xe_device_has_flat_ccs(xe))
+#define to_intel_bo(x) gem_to_xe_bo((x))
+#define mkwrite_device_info(xe) (INTEL_INFO(xe))
+
+#define HAS_128_BYTE_Y_TILING(xe) (xe || 1)
+
+#define intel_has_gpu_reset(a) (a && 0)
+
+#include "intel_wakeref.h"
+
+static inline bool intel_runtime_pm_get(struct xe_runtime_pm *pm)
+{
+	struct xe_device *xe = container_of(pm, struct xe_device, runtime_pm);
+
+	if (xe_pm_runtime_get(xe) < 0) {
+		xe_pm_runtime_put(xe);
+		return false;
+	}
+	return true;
+}
+
+static inline bool intel_runtime_pm_get_if_in_use(struct xe_runtime_pm *pm)
+{
+	struct xe_device *xe = container_of(pm, struct xe_device, runtime_pm);
+
+	return xe_pm_runtime_get_if_active(xe);
+}
+
+static inline void intel_runtime_pm_put_unchecked(struct xe_runtime_pm *pm)
+{
+	struct xe_device *xe = container_of(pm, struct xe_device, runtime_pm);
+
+	xe_pm_runtime_put(xe);
+}
+
+static inline void intel_runtime_pm_put(struct xe_runtime_pm *pm, bool wakeref)
+{
+	if (wakeref)
+		intel_runtime_pm_put_unchecked(pm);
+}
+
+#define intel_runtime_pm_get_raw intel_runtime_pm_get
+#define intel_runtime_pm_put_raw intel_runtime_pm_put
+#define assert_rpm_wakelock_held(x) do { } while (0)
+#define assert_rpm_raw_wakeref_held(x) do { } while (0)
+
+#define intel_uncore_forcewake_get(x, y) do { } while (0)
+#define intel_uncore_forcewake_put(x, y) do { } while (0)
+
+#define intel_uncore_arm_unclaimed_mmio_detection(x) do { } while (0)
+
+#define I915_PRIORITY_DISPLAY 0
+struct i915_sched_attr {
+	int priority;
+};
+#define i915_gem_fence_wait_priority(fence, attr) do { (void) attr; } while (0)
+
+#define with_intel_runtime_pm(rpm, wf) \
+	for ((wf) = intel_runtime_pm_get(rpm); (wf); \
+	     intel_runtime_pm_put((rpm), (wf)), (wf) = 0)
+
+#define pdev_to_i915 pdev_to_xe_device
+#define RUNTIME_INFO(xe)		(&(xe)->info.i915_runtime)
+
+#define FORCEWAKE_ALL XE_FORCEWAKE_ALL
+#define HPD_STORM_DEFAULT_THRESHOLD 50
+
+#ifdef CONFIG_ARM64
+/*
+ * arm64 indirectly includes linux/rtc.h,
+ * which defines a irq_lock, so include it
+ * here before #define-ing it
+ */
+#include <linux/rtc.h>
+#endif
+
+#define irq_lock irq.lock
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_fixed.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_fixed.h
new file mode 100644
index 000000000000..12c671fd5235
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_fixed.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/i915_fixed.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_gpu_error.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_gpu_error.h
new file mode 100644
index 000000000000..98e9dd78f670
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_gpu_error.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _I915_GPU_ERROR_H_
+#define _I915_GPU_ERROR_H_
+
+struct drm_i915_error_state_buf;
+
+__printf(2, 3)
+static inline void
+i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...)
+{
+}
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_irq.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_irq.h
new file mode 100644
index 000000000000..61707a07f91f
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_irq.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/i915_irq.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_reg.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_reg.h
new file mode 100644
index 000000000000..8619ec015ad4
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_reg.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/i915_reg.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_reg_defs.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_reg_defs.h
new file mode 100644
index 000000000000..723279c975b1
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_reg_defs.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/i915_reg_defs.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_trace.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_trace.h
new file mode 100644
index 000000000000..d429d421ac70
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_trace.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#define trace_i915_reg_rw(a...) do { } while (0)
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h
new file mode 100644
index 000000000000..1d7c4360e5c0
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/i915_utils.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_vgpu.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_vgpu.h
new file mode 100644
index 000000000000..80b024d435dc
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_vgpu.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _I915_VGPU_H_
+#define _I915_VGPU_H_
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+struct i915_ggtt;
+
+static inline void intel_vgpu_detect(struct drm_i915_private *i915)
+{
+}
+static inline bool intel_vgpu_active(struct drm_i915_private *i915)
+{
+	return false;
+}
+static inline void intel_vgpu_register(struct drm_i915_private *i915)
+{
+}
+static inline bool intel_vgpu_has_full_ppgtt(struct drm_i915_private *i915)
+{
+	return false;
+}
+static inline bool intel_vgpu_has_hwsp_emulation(struct drm_i915_private *i915)
+{
+	return false;
+}
+static inline bool intel_vgpu_has_huge_gtt(struct drm_i915_private *i915)
+{
+	return false;
+}
+static inline int intel_vgt_balloon(struct i915_ggtt *ggtt)
+{
+	return 0;
+}
+static inline void intel_vgt_deballoon(struct i915_ggtt *ggtt)
+{
+}
+
+#endif /* _I915_VGPU_H_ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h
new file mode 100644
index 000000000000..e4bbdffcd5f5
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef I915_VMA_H
+#define I915_VMA_H
+
+#include <uapi/drm/i915_drm.h>
+#include <drm/drm_mm.h>
+
+/* We don't want these from i915_drm.h in case of Xe */
+#undef I915_TILING_X
+#undef I915_TILING_Y
+#define I915_TILING_X 0
+#define I915_TILING_Y 0
+
+struct xe_bo;
+
+struct i915_vma {
+	struct xe_bo *bo, *dpt;
+	struct drm_mm_node node;
+};
+
+
+static inline u32 i915_ggtt_offset(const struct i915_vma *vma)
+{
+	return vma->node.start;
+}
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_vma_types.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma_types.h
new file mode 100644
index 000000000000..e7aaf50f5485
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma_types.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <linux/types.h>
+#include <linux/build_bug.h>
+
+/* XX: Figure out how to handle this vma mapping in xe */
+struct intel_remapped_plane_info {
+	/* in gtt pages */
+	u32 offset:31;
+	u32 linear:1;
+	union {
+		/* in gtt pages for !linear */
+		struct {
+			u16 width;
+			u16 height;
+			u16 src_stride;
+			u16 dst_stride;
+		};
+
+		/* in gtt pages for linear */
+		u32 size;
+	};
+} __packed;
+
+struct intel_remapped_info {
+	struct intel_remapped_plane_info plane[4];
+	/* in gtt pages */
+	u32 plane_alignment;
+} __packed;
+
+struct intel_rotation_info {
+	struct intel_remapped_plane_info plane[2];
+} __packed;
+
+enum i915_gtt_view_type {
+	I915_GTT_VIEW_NORMAL = 0,
+	I915_GTT_VIEW_ROTATED = sizeof(struct intel_rotation_info),
+	I915_GTT_VIEW_REMAPPED = sizeof(struct intel_remapped_info),
+};
+
+static inline void assert_i915_gem_gtt_types(void)
+{
+	BUILD_BUG_ON(sizeof(struct intel_rotation_info) != 2 * sizeof(u32) + 8 * sizeof(u16));
+	BUILD_BUG_ON(sizeof(struct intel_remapped_info) != 5 * sizeof(u32) + 16 * sizeof(u16));
+
+	/* Check that rotation/remapped shares offsets for simplicity */
+	BUILD_BUG_ON(offsetof(struct intel_remapped_info, plane[0]) !=
+		     offsetof(struct intel_rotation_info, plane[0]));
+	BUILD_BUG_ON(offsetofend(struct intel_remapped_info, plane[1]) !=
+		     offsetofend(struct intel_rotation_info, plane[1]));
+
+	/* As we encode the size of each branch inside the union into its type,
+	 * we have to be careful that each branch has a unique size.
+	 */
+	switch ((enum i915_gtt_view_type)0) {
+	case I915_GTT_VIEW_NORMAL:
+	case I915_GTT_VIEW_ROTATED:
+	case I915_GTT_VIEW_REMAPPED:
+		/* gcc complains if these are identical cases */
+		break;
+	}
+}
+
+struct i915_gtt_view {
+	enum i915_gtt_view_type type;
+	union {
+		/* Members need to contain no holes/padding */
+		struct intel_rotation_info rotated;
+		struct intel_remapped_info remapped;
+	};
+};
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_clock_gating.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_clock_gating.h
new file mode 100644
index 000000000000..ce986f0e8f38
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_clock_gating.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/intel_clock_gating.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_mchbar_regs.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_mchbar_regs.h
new file mode 100644
index 000000000000..55b316985340
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_mchbar_regs.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/intel_mchbar_regs.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_pci_config.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_pci_config.h
new file mode 100644
index 000000000000..8c15867fd613
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_pci_config.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/intel_pci_config.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_pcode.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_pcode.h
new file mode 100644
index 000000000000..0c47661bdc6a
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_pcode.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_PCODE_H__
+#define __INTEL_PCODE_H__
+
+#include "intel_uncore.h"
+#include "xe_pcode.h"
+
+static inline int
+snb_pcode_write_timeout(struct intel_uncore *uncore, u32 mbox, u32 val,
+			int fast_timeout_us, int slow_timeout_ms)
+{
+	return xe_pcode_write_timeout(__compat_uncore_to_gt(uncore), mbox, val,
+				      slow_timeout_ms ?: 1);
+}
+
+static inline int
+snb_pcode_write(struct intel_uncore *uncore, u32 mbox, u32 val)
+{
+
+	return xe_pcode_write(__compat_uncore_to_gt(uncore), mbox, val);
+}
+
+static inline int
+snb_pcode_read(struct intel_uncore *uncore, u32 mbox, u32 *val, u32 *val1)
+{
+	return xe_pcode_read(__compat_uncore_to_gt(uncore), mbox, val, val1);
+}
+
+static inline int
+skl_pcode_request(struct intel_uncore *uncore, u32 mbox,
+		  u32 request, u32 reply_mask, u32 reply,
+		  int timeout_base_ms)
+{
+	return xe_pcode_request(__compat_uncore_to_gt(uncore), mbox, request, reply_mask, reply,
+				timeout_base_ms);
+}
+
+#endif /* __INTEL_PCODE_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_runtime_pm.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_runtime_pm.h
new file mode 100644
index 000000000000..f7f3286e2c53
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_runtime_pm.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "intel_wakeref.h"
+
+enum i915_drm_suspend_mode {
+	I915_DRM_SUSPEND_IDLE,
+	I915_DRM_SUSPEND_MEM,
+	I915_DRM_SUSPEND_HIBERNATE,
+};
+
+#define intel_runtime_pm xe_runtime_pm
+
+static inline void disable_rpm_wakeref_asserts(void *rpm)
+{
+}
+
+static inline void enable_rpm_wakeref_asserts(void *rpm)
+{
+}
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h
new file mode 100644
index 000000000000..0006ef812346
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_STEP_H__
+#define __INTEL_STEP_H__
+
+#include "xe_device_types.h"
+#include "xe_step.h"
+
+#define intel_display_step_name xe_display_step_name
+
+static inline
+const char *xe_display_step_name(struct xe_device *xe)
+{
+	return xe_step_name(xe->info.step.display);
+}
+
+#endif /* __INTEL_STEP_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_uc_fw.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_uc_fw.h
new file mode 100644
index 000000000000..009745328992
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_uc_fw.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _INTEL_UC_FW_H_
+#define _INTEL_UC_FW_H_
+
+#define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git"
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_uncore.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_uncore.h
new file mode 100644
index 000000000000..cd26ddc0f69e
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_uncore.h
@@ -0,0 +1,175 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_UNCORE_H__
+#define __INTEL_UNCORE_H__
+
+#include "xe_device.h"
+#include "xe_device_types.h"
+#include "xe_mmio.h"
+
+static inline struct xe_gt *__compat_uncore_to_gt(struct intel_uncore *uncore)
+{
+	struct xe_device *xe = container_of(uncore, struct xe_device, uncore);
+
+	return xe_root_mmio_gt(xe);
+}
+
+static inline u32 intel_uncore_read(struct intel_uncore *uncore,
+				    i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_read32(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline u32 intel_uncore_read8(struct intel_uncore *uncore,
+				     i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_read8(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline u32 intel_uncore_read16(struct intel_uncore *uncore,
+				      i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_read16(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline u64
+intel_uncore_read64_2x32(struct intel_uncore *uncore,
+			 i915_reg_t i915_lower_reg, i915_reg_t i915_upper_reg)
+{
+	struct xe_reg lower_reg = XE_REG(i915_mmio_reg_offset(i915_lower_reg));
+	struct xe_reg upper_reg = XE_REG(i915_mmio_reg_offset(i915_upper_reg));
+	u32 upper, lower, old_upper;
+	int loop = 0;
+
+	upper = xe_mmio_read32(__compat_uncore_to_gt(uncore), upper_reg);
+	do {
+		old_upper = upper;
+		lower = xe_mmio_read32(__compat_uncore_to_gt(uncore), lower_reg);
+		upper = xe_mmio_read32(__compat_uncore_to_gt(uncore), upper_reg);
+	} while (upper != old_upper && loop++ < 2);
+
+	return (u64)upper << 32 | lower;
+}
+
+static inline void intel_uncore_posting_read(struct intel_uncore *uncore,
+					     i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	xe_mmio_read32(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline void intel_uncore_write(struct intel_uncore *uncore,
+				      i915_reg_t i915_reg, u32 val)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	xe_mmio_write32(__compat_uncore_to_gt(uncore), reg, val);
+}
+
+static inline u32 intel_uncore_rmw(struct intel_uncore *uncore,
+				   i915_reg_t i915_reg, u32 clear, u32 set)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_rmw32(__compat_uncore_to_gt(uncore), reg, clear, set);
+}
+
+static inline int intel_wait_for_register(struct intel_uncore *uncore,
+					  i915_reg_t i915_reg, u32 mask,
+					  u32 value, unsigned int timeout)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_wait32(__compat_uncore_to_gt(uncore), reg, mask, value,
+			      timeout * USEC_PER_MSEC, NULL, false);
+}
+
+static inline int intel_wait_for_register_fw(struct intel_uncore *uncore,
+					     i915_reg_t i915_reg, u32 mask,
+					     u32 value, unsigned int timeout)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_wait32(__compat_uncore_to_gt(uncore), reg, mask, value,
+			      timeout * USEC_PER_MSEC, NULL, false);
+}
+
+static inline int
+__intel_wait_for_register(struct intel_uncore *uncore, i915_reg_t i915_reg,
+			  u32 mask, u32 value, unsigned int fast_timeout_us,
+			  unsigned int slow_timeout_ms, u32 *out_value)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_wait32(__compat_uncore_to_gt(uncore), reg, mask, value,
+			      fast_timeout_us + 1000 * slow_timeout_ms,
+			      out_value, false);
+}
+
+static inline u32 intel_uncore_read_fw(struct intel_uncore *uncore,
+				       i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_read32(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline void intel_uncore_write_fw(struct intel_uncore *uncore,
+					 i915_reg_t i915_reg, u32 val)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	xe_mmio_write32(__compat_uncore_to_gt(uncore), reg, val);
+}
+
+static inline u32 intel_uncore_read_notrace(struct intel_uncore *uncore,
+					    i915_reg_t i915_reg)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	return xe_mmio_read32(__compat_uncore_to_gt(uncore), reg);
+}
+
+static inline void intel_uncore_write_notrace(struct intel_uncore *uncore,
+					      i915_reg_t i915_reg, u32 val)
+{
+	struct xe_reg reg = XE_REG(i915_mmio_reg_offset(i915_reg));
+
+	xe_mmio_write32(__compat_uncore_to_gt(uncore), reg, val);
+}
+
+static inline void __iomem *intel_uncore_regs(struct intel_uncore *uncore)
+{
+	struct xe_device *xe = container_of(uncore, struct xe_device, uncore);
+
+	return xe_device_get_root_tile(xe)->mmio.regs;
+}
+
+/*
+ * The raw_reg_{read,write} macros are intended as a micro-optimization for
+ * interrupt handlers so that the pointer indirection on uncore->regs can
+ * be computed once (and presumably cached in a register) instead of generating
+ * extra load instructions for each MMIO access.
+ *
+ * Given that these macros are only intended for non-GSI interrupt registers
+ * (and the goal is to avoid extra instructions generated by the compiler),
+ * these macros do not account for uncore->gsi_offset.  Any caller that needs
+ * to use these macros on a GSI register is responsible for adding the
+ * appropriate GSI offset to the 'base' parameter.
+ */
+#define raw_reg_read(base, reg) \
+	readl(base + i915_mmio_reg_offset(reg))
+#define raw_reg_write(base, reg, value) \
+	writel(value, base + i915_mmio_reg_offset(reg))
+
+#endif /* __INTEL_UNCORE_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_wakeref.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_wakeref.h
new file mode 100644
index 000000000000..1c5e30cf10ca
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_wakeref.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <linux/types.h>
+
+typedef bool intel_wakeref_t;
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h b/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h
new file mode 100644
index 000000000000..c2c30ece8f77
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_PXP_H__
+#define __INTEL_PXP_H__
+
+#include <linux/errno.h>
+#include <linux/types.h>
+
+struct drm_i915_gem_object;
+struct intel_pxp;
+
+static inline int intel_pxp_key_check(struct intel_pxp *pxp,
+				      struct drm_i915_gem_object *obj,
+				      bool assign)
+{
+	return -ENODEV;
+}
+
+static inline bool
+i915_gem_object_is_protected(const struct drm_i915_gem_object *obj)
+{
+	return false;
+}
+
+#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_dram.h b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_dram.h
new file mode 100644
index 000000000000..65707e20c557
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_dram.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../../i915/soc/intel_dram.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_gmch.h b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_gmch.h
new file mode 100644
index 000000000000..33c5257b3a71
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_gmch.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../../i915/soc/intel_gmch.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_pch.h b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_pch.h
new file mode 100644
index 000000000000..9c46556d33a4
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/soc/intel_pch.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../../i915/soc/intel_pch.h"
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband.h b/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband.h
new file mode 100644
index 000000000000..ec6f12de5727
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2013-2021 Intel Corporation
+ */
+
+#ifndef _VLV_SIDEBAND_H_
+#define _VLV_SIDEBAND_H_
+
+#include <linux/types.h>
+
+#include "vlv_sideband_reg.h"
+
+enum pipe;
+struct drm_i915_private;
+
+enum {
+	VLV_IOSF_SB_BUNIT,
+	VLV_IOSF_SB_CCK,
+	VLV_IOSF_SB_CCU,
+	VLV_IOSF_SB_DPIO,
+	VLV_IOSF_SB_FLISDSI,
+	VLV_IOSF_SB_GPIO,
+	VLV_IOSF_SB_NC,
+	VLV_IOSF_SB_PUNIT,
+};
+
+static inline void vlv_iosf_sb_get(struct drm_i915_private *i915, unsigned long ports)
+{
+}
+static inline u32 vlv_iosf_sb_read(struct drm_i915_private *i915, u8 port, u32 reg)
+{
+	return 0;
+}
+static inline void vlv_iosf_sb_write(struct drm_i915_private *i915,
+				     u8 port, u32 reg, u32 val)
+{
+}
+static inline void vlv_iosf_sb_put(struct drm_i915_private *i915, unsigned long ports)
+{
+}
+static inline void vlv_bunit_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_bunit_read(struct drm_i915_private *i915, u32 reg)
+{
+	return 0;
+}
+static inline void vlv_bunit_write(struct drm_i915_private *i915, u32 reg, u32 val)
+{
+}
+static inline void vlv_bunit_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_cck_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_cck_read(struct drm_i915_private *i915, u32 reg)
+{
+	return 0;
+}
+static inline void vlv_cck_write(struct drm_i915_private *i915, u32 reg, u32 val)
+{
+}
+static inline void vlv_cck_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_ccu_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_ccu_read(struct drm_i915_private *i915, u32 reg)
+{
+	return 0;
+}
+static inline void vlv_ccu_write(struct drm_i915_private *i915, u32 reg, u32 val)
+{
+}
+static inline void vlv_ccu_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_dpio_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_dpio_read(struct drm_i915_private *i915, int pipe, int reg)
+{
+	return 0;
+}
+static inline void vlv_dpio_write(struct drm_i915_private *i915,
+				  int pipe, int reg, u32 val)
+{
+}
+static inline void vlv_dpio_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_flisdsi_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_flisdsi_read(struct drm_i915_private *i915, u32 reg)
+{
+	return 0;
+}
+static inline void vlv_flisdsi_write(struct drm_i915_private *i915, u32 reg, u32 val)
+{
+}
+static inline void vlv_flisdsi_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_nc_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_nc_read(struct drm_i915_private *i915, u8 addr)
+{
+	return 0;
+}
+static inline void vlv_nc_put(struct drm_i915_private *i915)
+{
+}
+static inline void vlv_punit_get(struct drm_i915_private *i915)
+{
+}
+static inline u32 vlv_punit_read(struct drm_i915_private *i915, u32 addr)
+{
+	return 0;
+}
+static inline int vlv_punit_write(struct drm_i915_private *i915, u32 addr, u32 val)
+{
+	return 0;
+}
+static inline void vlv_punit_put(struct drm_i915_private *i915)
+{
+}
+
+#endif /* _VLV_SIDEBAND_H_ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband_reg.h b/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband_reg.h
new file mode 100644
index 000000000000..949f134ce3cf
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/vlv_sideband_reg.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "../../i915/vlv_sideband_reg.h"