Re: [PATCH 1/2] drm/i915/selftests: Replace magic 1<<22 with MI_USE_GGTT/MI_MEM_VIRTUAL

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On Fri, Jul 06, 2018 at 03:23:22PM +0100, Chris Wilson wrote:
> Replace the magic bit with the proper symbolic name for instructing
> MI_STORE_DWORD_IMM to use a virtual address (on gen3) or the global GTT
> address (still virtual!) on gen4+.
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/selftests/huge_pages.c         | 4 ++--
>  drivers/gpu/drm/i915/selftests/i915_gem_coherency.c | 4 ++--
>  drivers/gpu/drm/i915/selftests/i915_gem_context.c   | 4 ++--
>  drivers/gpu/drm/i915/selftests/intel_hangcheck.c    | 2 +-
>  4 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c
> index 1193dd36913a..ab662dabcff7 100644
> --- a/drivers/gpu/drm/i915/selftests/huge_pages.c
> +++ b/drivers/gpu/drm/i915/selftests/huge_pages.c
> @@ -919,12 +919,12 @@ gpu_write_dw(struct i915_vma *vma, u64 offset, u32 val)
>  			*cmd++ = val;
>  		} else if (gen >= 4) {
>  			*cmd++ = MI_STORE_DWORD_IMM_GEN4 |
> -				(gen < 6 ? 1 << 22 : 0);
> +				(gen < 6 ? MI_USE_GGTT : 0);
>  			*cmd++ = 0;
>  			*cmd++ = offset;
>  			*cmd++ = val;
>  		} else {
> -			*cmd++ = MI_STORE_DWORD_IMM | 1 << 22;
> +			*cmd++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
>  			*cmd++ = offset;
>  			*cmd++ = val;
>  		}
> diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
> index cb9eef1635e1..294c58aba2c1 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
> @@ -210,12 +210,12 @@ static int gpu_set(struct drm_i915_gem_object *obj,
>  		*cs++ = upper_32_bits(i915_ggtt_offset(vma) + offset);
>  		*cs++ = v;

Missed the gen8+ case here?

>  	} else if (INTEL_GEN(i915) >= 4) {
> -		*cs++ = MI_STORE_DWORD_IMM_GEN4 | 1 << 22;
> +		*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;

So here we use ggtt on all gens. In the other tests we use ppgtt on
gen6+. Ah, this one uses the kernel context apparently. I guess that's
the reason?

>  		*cs++ = 0;
>  		*cs++ = i915_ggtt_offset(vma) + offset;
>  		*cs++ = v;
>  	} else {
> -		*cs++ = MI_STORE_DWORD_IMM | 1 << 22;
> +		*cs++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
>  		*cs++ = i915_ggtt_offset(vma) + offset;
>  		*cs++ = v;
>  		*cs++ = MI_NOOP;
> diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
> index 0d8e719802fa..65100d3e31cf 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
> @@ -63,12 +63,12 @@ gpu_fill_dw(struct i915_vma *vma, u64 offset, unsigned long count, u32 value)
>  			*cmd++ = value;
>  		} else if (gen >= 4) {
>  			*cmd++ = MI_STORE_DWORD_IMM_GEN4 |
> -				(gen < 6 ? 1 << 22 : 0);
> +				(gen < 6 ? MI_USE_GGTT : 0);
>  			*cmd++ = 0;
>  			*cmd++ = offset;
>  			*cmd++ = value;
>  		} else {
> -			*cmd++ = MI_STORE_DWORD_IMM | 1 << 22;
> +			*cmd++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
>  			*cmd++ = offset;
>  			*cmd++ = value;
>  		}
> diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> index 5cb808dc5b50..0fc6da81f86e 100644
> --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> @@ -171,7 +171,7 @@ static int emit_recurse_batch(struct hang *h,
>  		*batch++ = MI_BATCH_BUFFER_START | 1 << 8;
>  		*batch++ = lower_32_bits(vma->node.start);
>  	} else if (INTEL_GEN(i915) >= 4) {
> -		*batch++ = MI_STORE_DWORD_IMM_GEN4 | 1 << 22;
> +		*batch++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
>  		*batch++ = 0;
>  		*batch++ = lower_32_bits(hws_address(hws, rq));
>  		*batch++ = rq->fence.seqno;
> -- 
> 2.18.0
> 
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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