On 2016.10.19 09:03:35 +0100, Chris Wilson wrote: > The purpose of returning the just-pinned VMA is so that we can use the > information within, like its address. Also it should be tracked and used > as the cookie to unpin... > > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhen...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/gvt/execlist.c | 20 +++++++++-----------
> 1 file changed, 9 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/execlist.c
> b/drivers/gpu/drm/i915/gvt/execlist.c
> index a9d04c378755..cfdd3ae13fb0 100644
> --- a/drivers/gpu/drm/i915/gvt/execlist.c
> +++ b/drivers/gpu/drm/i915/gvt/execlist.c
> @@ -385,8 +385,6 @@ static int set_gma_to_bb_cmd(struct intel_shadow_bb_entry
> *entry_obj,
> static void prepare_shadow_batch_buffer(struct intel_vgpu_workload *workload)
> {
> int gmadr_bytes = workload->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
> - struct i915_vma *vma;
> - unsigned long gma;
>
> /* pin the gem object to ggtt */
> if (!list_empty(&workload->shadow_bb)) {
> @@ -398,8 +396,10 @@ static void prepare_shadow_batch_buffer(struct
> intel_vgpu_workload *workload)
>
> list_for_each_entry_safe(entry_obj, temp, &workload->shadow_bb,
> list) {
> + struct i915_vma *vma;
> +
> vma = i915_gem_object_ggtt_pin(entry_obj->obj, NULL, 0,
> - 0, 0);
> + 4, 0);
> if (IS_ERR(vma)) {
> gvt_err("Cannot pin\n");
> return;
> @@ -407,9 +407,9 @@ static void prepare_shadow_batch_buffer(struct
> intel_vgpu_workload *workload)
> i915_gem_object_unpin_pages(entry_obj->obj);
>
> /* update the relocate gma with shadow batch buffer*/
> - gma = i915_gem_object_ggtt_offset(entry_obj->obj, NULL);
> - WARN_ON(!IS_ALIGNED(gma, 4));
> - set_gma_to_bb_cmd(entry_obj, gma, gmadr_bytes);
> + set_gma_to_bb_cmd(entry_obj,
> + i915_ggtt_offset(vma),
> + gmadr_bytes);
> }
> }
> }
> @@ -441,7 +441,6 @@ static int update_wa_ctx_2_shadow_ctx(struct
> intel_shadow_wa_ctx *wa_ctx)
> static void prepare_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
> {
> struct i915_vma *vma;
> - unsigned long gma;
> unsigned char *per_ctx_va =
> (unsigned char *)wa_ctx->indirect_ctx.shadow_va +
> wa_ctx->indirect_ctx.size;
> @@ -449,16 +448,15 @@ static void prepare_shadow_wa_ctx(struct
> intel_shadow_wa_ctx *wa_ctx)
> if (wa_ctx->indirect_ctx.size == 0)
> return;
>
> - vma = i915_gem_object_ggtt_pin(wa_ctx->indirect_ctx.obj, NULL, 0, 0, 0);
> + vma = i915_gem_object_ggtt_pin(wa_ctx->indirect_ctx.obj, NULL,
> + 0, CACHELINE_BYTES, 0);
> if (IS_ERR(vma)) {
> gvt_err("Cannot pin indirect ctx obj\n");
> return;
> }
> i915_gem_object_unpin_pages(wa_ctx->indirect_ctx.obj);
>
> - gma = i915_gem_object_ggtt_offset(wa_ctx->indirect_ctx.obj, NULL);
> - WARN_ON(!IS_ALIGNED(gma, CACHELINE_BYTES));
> - wa_ctx->indirect_ctx.shadow_gma = gma;
> + wa_ctx->indirect_ctx.shadow_gma = i915_ggtt_offset(vma);
>
> wa_ctx->per_ctx.shadow_gma = *((unsigned int *)per_ctx_va + 1);
> memset(per_ctx_va, 0, CACHELINE_BYTES);
> --
> 2.9.3
>
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