intel/context: create/destroy implementation

Add relevant code to set up minimal state and call the appropriate
kernel IOCTLs.

This was missed in the previous cherry-picking for 2.3.36.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 485308b534fa6b7a30a4feb760bd73e2becd09c0..a957c2855dabd2bbbf906f78b030b6c5549a963b 100644 (file)
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -2840,6 +2840,51 @@ drm_intel_bufmgr_gem_set_aub_dump(drm_intel_bufmgr *bufmgr, int enable)
        }
 }
 
+drm_intel_context *
+drm_intel_gem_context_create(drm_intel_bufmgr *bufmgr)
+{
+       drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *)bufmgr;
+       struct drm_i915_gem_context_create create;
+       drm_i915_getparam_t gp;
+       drm_intel_context *context = NULL;
+       int tmp = 0, ret;
+
+       ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create);
+       if (ret != 0) {
+               fprintf(stderr, "DRM_IOCTL_I915_GEM_CONTEXT_CREATE failed: %s\n",
+                       strerror(errno));
+               return NULL;
+       }
+
+       context = calloc(1, sizeof(*context));
+       context->ctx_id = create.ctx_id;
+       context->bufmgr = bufmgr;
+
+       return context;
+}
+
+void
+drm_intel_gem_context_destroy(drm_intel_context *ctx)
+{
+       drm_intel_bufmgr_gem *bufmgr_gem;
+       struct drm_i915_gem_context_destroy destroy;
+       int ret;
+
+       if (ctx == NULL)
+               return;
+
+       bufmgr_gem = (drm_intel_bufmgr_gem *)ctx->bufmgr;
+       destroy.ctx_id = ctx->ctx_id;
+       ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY,
+                      &destroy);
+       if (ret != 0)
+               fprintf(stderr, "DRM_IOCTL_I915_GEM_CONTEXT_DESTROY failed: %s\n",
+                       strerror(errno));
+
+       free(ctx);
+}
+
+
 /**
  * Annotate the given bo for use in aub dumping.
  *