For easy recognisability, we want the kernel context to have id 0 and all user contexts to have non-zero ids.
Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_gem_context.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 17f90c618208..77458da9627d 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -451,6 +451,11 @@ int i915_gem_context_init(struct drm_i915_private *dev_priv) return PTR_ERR(ctx); } + /* For easy recognisablity, we want the kernel context to be 0 and then + * all user contexts will have non-zero hw_id. + */ + GEM_BUG_ON(ctx->hw_id); + i915_gem_context_clear_bannable(ctx); ctx->priority = I915_PRIORITY_MIN; /* lowest priority; idle task */ dev_priv->kernel_context = ctx; -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
