Re: [PATCH] drm/i915: set vdbox/vebox enable masks on all gens

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On 3/21/19 3:39 PM, Chris Wilson wrote:
Quoting Daniele Ceraolo Spurio (2019-03-21 22:14:20)


On 3/21/19 3:11 PM, Chris Wilson wrote:
Quoting Daniele Ceraolo Spurio (2019-03-21 22:02:06)
The upcoming unified GuC FW will require us to send video engine enable
masks to GuC for its initialization.

For consistency, just set the runtime_info enable masks for all gens.
We'll then be able to directly use those in the GuC setup

Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: John Spotswood <john.a.spotswood@xxxxxxxxx>
Cc: Eric Betancourt <eric.s.betancourt@xxxxxxxxx>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
---
   drivers/gpu/drm/i915/intel_device_info.c | 8 +++++++-
   1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index eddf83807957..836184d6538e 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -872,8 +872,14 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
          unsigned int i;
          u32 media_fuse;
- if (INTEL_GEN(dev_priv) < 11)
+       if (INTEL_GEN(dev_priv) < 11) {
+               RUNTIME_INFO(dev_priv)->vdbox_enable =
+                       (info->engine_mask & GENMASK(VCS0 + I915_MAX_VCS, VCS0)) >> VCS0;

D'oh!

Thanks for catching this, GuC just ignores the higher bits and didn't
complain, so I missed it.

Having demonstrated it's a simple mapping, do we need to store it
separately?

#define VDBOX_MASK(info) \
	(((info)->engine_mask & \
	  GENMASK(VCS0 + I915_MAX_VCS - 1, VCS0)) >> VCS0)


LGTM, will do the changes.

Daniele

etc
-Chris

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