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drm/i915/huc: Add HuC fw loading support

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The HuC loading process is similar to GuC. The intel_uc_fw_fetch()
is used for both cases.

HuC loading needs to be before GuC loading. The WOPCM setting must
be done early before loading any of them.

v2: rebased on-top of drm-intel-nightly.
    removed if(HAS_GUC()) before the guc call. (D.Gordon)
    update huc_version number of format.
v3: rebased to drm-intel-nightly, changed the file name format to
    match the one in the huc package.
    Changed dev->dev_private to to_i915()
v4: moved function back to where it was.
    change wait_for_atomic to wait_for.
v5: rebased. Changed the year in the copyright message to reflect
the right year.Correct the comments,remove the unwanted WARN message,
replace drm_gem_object_unreference() with i915_gem_object_put().Make the
prototypes in intel_huc.h non-extern.
v6: rebased. Update the file construction done by HuC. It is similar to
GuC.Adopted the approach used in-
https://patchwork.freedesktop.org/patch/104355/ <Tvrtko Ursulin>
v7: Change dev to dev_priv in macro definition.
Corrected comments.
v8: rebased on top of drm-tip. Updated functions intel_huc_load(),
intel_huc_init() and intel_uc_fw_fetch() to accept dev_priv instead of
dev. Moved contents of intel_huc.h to intel_uc.h.
v9: change SKL_FW_ to SKL_HUC_FW_. Add intel_ prefix to guc_wopcm_size().
Remove unwanted checks in intel_uc.h. Rename huc_fw in struct intel_huc to
simply fw to avoid redundency.
v10: rebased. Correct comments. Make intel_huc_fini() accept dev_priv
instead of dev like intel_huc_init() and intel_huc_load().Move definition
to i915_guc_reg.h from intel_uc.h. Clean DMA_CTRL bits after HuC DMA
transfer in huc_ucode_xfer() instead of guc_ucode_xfer(). Add suitable
WARNs to give extra info.
v11: rebased. Add proper bias for HuC and make sure there are
asserts on failure by using guc_ggtt_offset_vma(). Introduce
intel_huc.c and remove intel_huc_loader.c since it has functions that
do more than just loading.Correct year in copyright.
v12: remove invalidates that are not required anymore.

Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Tested-by: Xiang Haihao <haihao.xiang@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Alex Dai <yu.dai@intel.com>
Signed-off-by: Peter Antoine <peter.antoine@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484755558-1234-1-git-send-email-anusha.srivatsa@intel.com
This commit is contained in:
Anusha Srivatsa
2017-01-18 08:05:53 -08:00
committed by Jani Nikula
parent 5b8cd0755f
commit bd132858e9
7 changed files with 292 additions and 3 deletions
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3
drivers/gpu/drm/i915/i915_drv.c
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@@ -599,6 +599,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
if (ret)
goto cleanup_irq;
intel_huc_init(dev_priv);
intel_guc_init(dev_priv);
ret = i915_gem_init(dev_priv);
@@ -627,6 +628,7 @@ cleanup_gem:
i915_gem_fini(dev_priv);
cleanup_irq:
intel_guc_fini(dev_priv);
intel_huc_fini(dev_priv);
drm_irq_uninstall(dev);
intel_teardown_gmbus(dev_priv);
cleanup_csr:
@@ -1314,6 +1316,7 @@ void i915_driver_unload(struct drm_device *dev)
drain_workqueue(dev_priv->wq);
intel_guc_fini(dev_priv);
intel_huc_fini(dev_priv);
i915_gem_fini(dev_priv);
intel_fbc_cleanup_cfb(dev_priv);