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Use different DRM Context for each OsContext on Linux

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Change-Id: I543df4accdeba6c69b7dcf86d4238d12dafe92fe
Signed-off-by: Dunajski, Bartosz <bartosz.dunajski@intel.com>
This commit is contained in:
Dunajski, Bartosz
2018-12-11 08:21:56 +01:00
parent 9fcc06f0c5
commit cfafe943eb
18 changed files with 311 additions and 178 deletions
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23
runtime/os_interface/linux/drm_neo.cpp
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@@ -137,24 +137,27 @@ void Drm::checkPreemptionSupport() {
#endif
}
void Drm::createLowPriorityContext() {
drm_i915_gem_context_create gcc = {};
auto retVal = ioctl(DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &gcc);
UNRECOVERABLE_IF(retVal != 0);
lowPriorityContextId = gcc.ctx_id;
void Drm::setLowPriorityContextParam(uint32_t drmContextId) {
drm_i915_gem_context_param gcp = {};
gcp.ctx_id = lowPriorityContextId;
gcp.ctx_id = drmContextId;
gcp.param = I915_CONTEXT_PARAM_PRIORITY;
gcp.value = -1023;
retVal = ioctl(DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM, &gcp);
auto retVal = ioctl(DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM, &gcp);
UNRECOVERABLE_IF(retVal != 0);
}
void Drm::destroyLowPriorityContext() {
uint32_t Drm::createDrmContext() {
drm_i915_gem_context_create gcc = {};
auto retVal = ioctl(DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &gcc);
UNRECOVERABLE_IF(retVal != 0);
return gcc.ctx_id;
}
void Drm::destroyDrmContext(uint32_t drmContextId) {
drm_i915_gem_context_destroy destroy = {};
destroy.ctx_id = lowPriorityContextId;
destroy.ctx_id = drmContextId;
auto retVal = ioctl(DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
UNRECOVERABLE_IF(retVal != 0);
}