On Wed, Jun 08, 2016 at 11:30:25AM -0400, Zhi Wang wrote:
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 66fdb8d..6a79c8c 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -879,6 +879,7 @@ struct i915_gem_context {
> bool initialised;
> } engine[I915_NUM_ENGINES];
> u32 ring_size;
> + u32 addressing_mode;
>
> struct list_head link;
>
> @@ -326,6 +314,7 @@ intel_lr_context_descriptor_update(struct
> i915_gem_context *ctx,
> BUILD_BUG_ON(MAX_CONTEXT_HW_ID > (1<<GEN8_CTX_ID_WIDTH));
>
> desc = engine->ctx_desc_template; /* bits 0-11 */
> + desc |= ctx->addressing_mode; /* bits 3-4 */
Did we not think that
desc = ctx->desc_template;
desc |= engine->ctx_desc_template;
worked slightly better?
> desc |= ce->lrc_vma->node.start + LRC_PPHWSP_PN * PAGE_SIZE;
> /* bits 12-31 */
> desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT; /* bits 32-52 */
--
Chris Wilson, Intel Open Source Technology Centre
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