lang/intel-compute-runtime: enable DG1 (Intel Xe) support

No kernel support yet. To catch regressions early.

1 files changed, 49 insertions, 0 deletions

diff --git a/lang/intel-compute-runtime/files/patch-max_freq b/lang/intel-compute-runtime/files/patch-max_freq
index 16835da58187..f1789e82aaa4 100644
--- a/lang/intel-compute-runtime/files/patch-max_freq
+++ b/lang/intel-compute-runtime/files/patch-max_freq
@@ -51,3 +51,52 @@
      return 0;
  }
  
+--- shared/source/os_interface/linux/drm_query_dg1.cpp.orig	2020-11-07 13:04:57 UTC
++++ shared/source/os_interface/linux/drm_query_dg1.cpp
+@@ -13,11 +13,38 @@
+ 
+ #include <fstream>
+ 
++#if defined(__FreeBSD__)
++#include <sys/param.h>
++#include <sys/sysctl.h>
++#include <cstdio>
++#include <cstdlib>
++#endif
++
+ namespace NEO {
+ class OsContext;
+ 
+ int Drm::getMaxGpuFrequency(HardwareInfo &hwInfo, int &maxGpuFrequency) {
+     maxGpuFrequency = 0;
++#if defined(__FreeBSD__)
++    char name[SPECNAMELEN + 1];
++    if (!fdevname_r(getFileDescriptor(), name, sizeof(name))) {
++        return 0;
++    }
++    int id;
++    if (!sscanf(name, "drm/%d", &id) && !sscanf(name, "dri/renderD%d", &id)) {
++        return 0;
++    }
++
++    char oid[MAXPATHLEN + 1];
++    char max_freq[PAGE_SIZE];
++    size_t len = sizeof(max_freq);
++    snprintf(oid, sizeof(oid), "sys.class.drm.card%d.gt_max_freq_mhz", id - 128);
++    if (sysctlbyname(oid, &max_freq, &len, NULL, 0)) {
++        return 0;
++    }
++
++    maxGpuFrequency = std::stoi(max_freq);
++#else
+     std::string clockSysFsPath = getSysFsPciPath();
+ 
+     clockSysFsPath += "/gt_max_freq_mhz";
+@@ -29,6 +56,7 @@ int Drm::getMaxGpuFrequency(HardwareInfo &hwInfo, int 
+ 
+     ifs >> maxGpuFrequency;
+     ifs.close();
++#endif
+     return 0;
+ }
+