intel: Add and use intel_gem_create_context()

Add intel_gem_create_context() to common/intel_gem.c/h and use it
on Iris, Crocus, ANV and HASVK.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18974>

src/intel/common/intel_gem.c

@@ -58,6 +58,16 @@ intel_gem_supports_syncobj_wait(int fd)
    return ret == -1 && errno == ETIME;
 }
 
+bool
+intel_gem_create_context(int fd, uint32_t *context_id)
+{
+   struct drm_i915_gem_context_create create = {};
+   if (intel_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create))
+      return false;
+   *context_id = create.ctx_id;
+   return true;
+}
+
 bool
 intel_gem_create_context_engines(int fd,
                                  const struct intel_query_engine_info *info,

src/intel/common/intel_gem.h

@@ -159,6 +159,7 @@ intel_i915_query_alloc(int fd, uint64_t query_id, int32_t *query_length)
 
 bool intel_gem_supports_syncobj_wait(int fd);
 
+bool intel_gem_create_context(int fd, uint32_t *context_id);
 bool
 intel_gem_create_context_engines(int fd,
                                  const struct intel_query_engine_info *info,

src/intel/common/meson.build

@@ -124,7 +124,7 @@ if with_tests and not with_platform_android
       ],
       gnu_symbol_visibility : 'hidden',
       include_directories : [inc_include, inc_src, inc_intel],
-      link_with : [libintel_dev],
+      link_with : [libintel_dev, libintel_common],
       dependencies : [dep_libdrm, idep_gtest, idep_genxml, idep_mesautil],
       install : install_intel_gpu_tests,
     )

src/intel/common/tests/mi_builder_test.cpp

@@ -28,6 +28,7 @@
 #include <gtest/gtest.h>
 
 #include "c99_compat.h"
+#include "common/intel_gem.h"
 #include "dev/intel_device_info.h"
 #include "drm-uapi/i915_drm.h"
 #include "genxml/gen_macros.h"
@@ -128,7 +129,7 @@ public:
    }
 
    int fd;
-   int ctx_id;
+   uint32_t ctx_id;
    intel_device_info devinfo;
 
    uint32_t batch_bo_handle;
@@ -209,10 +210,7 @@ mi_builder_test::SetUp()
    }
    ASSERT_TRUE(i < max_devices) << "Failed to find a DRM device";
 
-   drm_i915_gem_context_create ctx_create = drm_i915_gem_context_create();
-   ASSERT_EQ(drmIoctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE,
-                      (void *)&ctx_create), 0) << strerror(errno);
-   ctx_id = ctx_create.ctx_id;
+   ASSERT_TRUE(intel_gem_create_context(fd, &ctx_id)) << strerror(errno);
 
    if (GFX_VER >= 8) {
       /* On gfx8+, we require softpin */