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86 lines
3.2 KiB
Text
86 lines
3.2 KiB
Text
/sys/class/drm/renderD*/device/device is Linux-only, so use a BSD extension
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to get vendor/device identifiers from rendor nodes. Based on libdrm code.
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According to https://github.com/intel/libva/issues/540 some nodes maybe
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missing, so unlike Linux keep searching in case iGPU is older than dGPU.
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mfxloader.cpp later uses the newest GPU to decide the default.
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$ ffmpeg -hide_banner -init_hw_device qsv=auto -i foo.y4m -vf hwupload=extra_hw_frames=64,format=qsv -c:v h264_qsv -y foo.mkv
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[AVHWDeviceContext @ 0x8062d0140] Error initializing an MFX session: -3.
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Device creation failed: -1313558101.
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Failed to set value 'qsv=auto' for option 'init_hw_device': Unknown error occurred
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Error parsing global options: Unknown error occurred
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--- api/mfx_dispatch/linux/device_ids.h.orig 2021-10-26 06:00:35 UTC
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+++ api/mfx_dispatch/linux/device_ids.h
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@@ -404,7 +404,62 @@ static inline eMFXHWType get_platform(int device_id) {
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return MFX_HW_UNKNOWN;
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}
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+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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+#if defined(__FreeBSD__) && __FreeBSD__ < 13
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+#include <sys/sysctl.h>
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+#else
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+#include <sys/ioctl.h>
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+#include <fcntl.h>
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+#include <unistd.h>
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+#endif // defined(__FreeBSD__) && __FreeBSD__ < 13
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+
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+struct drm_pciinfo {
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+ uint16_t domain;
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+ uint8_t bus;
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+ uint8_t dev;
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+ uint8_t func;
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+ uint16_t vendor_id;
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+ uint16_t device_id;
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+ uint16_t subvendor_id;
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+ uint16_t subdevice_id;
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+ uint8_t revision_id;
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+};
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+
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+#define DRM_IOCTL_BASE 'd'
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+#define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type)
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+#define DRM_IOCTL_GET_PCIINFO DRM_IOR(0x15, struct drm_pciinfo)
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+#endif
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+
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std::vector <Device> get_devices() {
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+#ifdef DRM_IOCTL_GET_PCIINFO
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+ std::vector <Device> result;
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+ for (int i = 0; i < 64; ++i) {
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+#if defined(__FreeBSD__) && __FreeBSD__ < 13
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+ std::string mib = "dev.drm." + std::to_string(128 + i) + ".PCI_ID";
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+ char pci_id[20];
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+ size_t len = sizeof(pci_id);
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+ if (sysctlbyname(mib.c_str(), pci_id, &len, NULL, 0)) continue;
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+ Device device;
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+ sscanf(pci_id, "%x:%x", &device.vendor_id, &device.device_id);
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+#else
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+ std::string path = "/dev/dri/renderD" + std::to_string(128 + i);
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+ int fd = open(path.c_str(), O_RDONLY);
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+ if (fd == -1) continue;
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+ struct drm_pciinfo pinfo;
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+ if (ioctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) {
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+ close(fd);
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+ continue;
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+ }
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+ Device device = { .vendor_id = pinfo.vendor_id, .device_id = pinfo.device_id };
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+ close(fd);
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+#endif // defined(__FreeBSD__) && __FreeBSD__ < 13
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+ if (device.vendor_id != 0x8086) { // Filter out non-Intel devices
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+ continue;
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+ }
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+ device.platform = get_platform(device.device_id);
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+ result.emplace_back(device);
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+ }
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+#else
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const char *dir = "/sys/class/drm";
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const char *device_id_file = "/device/device";
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const char *vendor_id_file = "/device/vendor";
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@@ -431,6 +486,7 @@ std::vector <Device> get_devices() {
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device.platform = get_platform(device.device_id);
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result.emplace_back(device);
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}
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+#endif
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std::sort(result.begin(), result.end(), [](const Device &a, const Device &b) {
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return a.platform < b.platform;
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});
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