GPU (Linux): fix building with old kernel headers

Author: CarterLi

src/detection/gpu/gpu_linux.c

@@ -17,8 +17,7 @@
 #endif
 
 #ifdef FF_HAVE_DRM
-    #include <i915_drm.h>
-    #include "xe_drm.h"
+    #include "intel_drm.h"
     #include <fcntl.h>
     #include <sys/ioctl.h>
 #endif
@@ -241,15 +240,9 @@ static void pciDetectIntelSpecific(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf*
     if (!drmKey) return;
 
     if (ffStrbufEqualS(&gpu->driver, "xe"))
-    {
         ffStrbufAppendS(pciDir, "/tile0/gt0/freq0/max_freq");
-    }
     else
-    {
-        ffStrbufAppendC(pciDir, '/');
-        ffStrbufAppendS(pciDir, drmKey);
-        ffStrbufAppendS(pciDir, "/gt_max_freq_mhz");
-    }
+        ffStrbufAppendF(pciDir, "/drm/%s/gt_max_freq_mhz", drmKey);
     if (ffReadFileBuffer(pciDir->chars, buffer))
         gpu->frequency = (uint32_t) ffStrbufToUInt(buffer, 0);
 }
@@ -455,7 +448,7 @@ static const char* detectPci(const FFGPUOptions* options, FFlist* gpus, FFstrbuf
     gpu->frequency = FF_GPU_FREQUENCY_UNSET;
 
     char drmKeyBuffer[8];
-    if (options->driverSpecific && !drmKey)
+    if (!drmKey)
     {
         ffStrbufAppendS(deviceDir, "/drm");
         FF_AUTO_CLOSE_DIR DIR* dirp = opendir(deviceDir->chars);

src/detection/gpu/intel_drm.h

@@ -0,0 +1,125 @@
+#pragma once
+
+/* SPDX-License-Identifier: MIT */
+#include <drm.h>
+
+// xe_drm.h
+
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#define DRM_XE_DEVICE_QUERY		0x00
+
+#define DRM_IOCTL_XE_DEVICE_QUERY		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_DEVICE_QUERY, struct drm_xe_device_query)
+
+enum drm_xe_memory_class {
+	DRM_XE_MEM_REGION_CLASS_SYSMEM = 0,
+	DRM_XE_MEM_REGION_CLASS_VRAM
+};
+
+struct drm_xe_mem_region {
+	__u16 mem_class;
+	__u16 instance;
+	__u32 min_page_size;
+	__u64 total_size;
+	__u64 used;
+	__u64 cpu_visible_size;
+	__u64 cpu_visible_used;
+	__u64 reserved[6];
+};
+
+struct drm_xe_query_mem_regions {
+	__u32 num_mem_regions;
+	__u32 pad;
+	struct drm_xe_mem_region mem_regions[];
+};
+
+struct drm_xe_query_topology_mask {
+	__u16 gt_id;
+
+#define DRM_XE_TOPO_DSS_GEOMETRY	1
+#define DRM_XE_TOPO_DSS_COMPUTE		2
+#define DRM_XE_TOPO_EU_PER_DSS		4
+	__u16 type;
+	__u32 num_bytes;
+	__u8 mask[];
+};
+
+struct drm_xe_device_query {
+	__u64 extensions;
+
+#define DRM_XE_DEVICE_QUERY_MEM_REGIONS		1
+#define DRM_XE_DEVICE_QUERY_GT_TOPOLOGY		5
+	__u32 query;
+	__u32 size;
+	__u64 data;
+	__u64 reserved[2];
+};
+
+// i915_drm.h
+
+/*
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ */
+
+#define DRM_IOCTL_I915_GETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
+
+struct drm_i915_getparam {
+	__s32 param;
+	int *value;
+};
+typedef struct drm_i915_getparam drm_i915_getparam_t;
+
+#define DRM_I915_GETPARAM	0x06
+#define DRM_I915_QUERY			0x39
+#define DRM_I915_QUERY_MEMORY_REGIONS		4
+#define DRM_IOCTL_I915_QUERY			DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_QUERY, struct drm_i915_query)
+#define I915_PARAM_EU_TOTAL		 34
+
+struct drm_i915_query_item {
+	__u64 query_id;
+#define DRM_I915_QUERY_MEMORY_REGIONS		4
+
+	__s32 length;
+	__u32 flags;
+	__u64 data_ptr;
+};
+
+struct drm_i915_query {
+	__u32 num_items;
+	__u32 flags;
+	__u64 items_ptr;
+};
+
+enum drm_i915_gem_memory_class {
+	I915_MEMORY_CLASS_SYSTEM = 0,
+	I915_MEMORY_CLASS_DEVICE,
+};
+
+struct drm_i915_gem_memory_class_instance {
+	__u16 memory_class;
+	__u16 memory_instance;
+};
+
+struct drm_i915_memory_region_info {
+	struct drm_i915_gem_memory_class_instance region;
+	__u32 rsvd0;
+	__u64 probed_size;
+	__u64 unallocated_size;
+
+	union {
+		__u64 rsvd1[8];
+		struct {
+			__u64 probed_cpu_visible_size;
+			__u64 unallocated_cpu_visible_size;
+		};
+	};
+};
+
+struct drm_i915_query_memory_regions {
+	__u32 num_regions;
+	__u32 rsvd[3];
+	struct drm_i915_memory_region_info regions[];
+};