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Fixes the following W=1 kernel build warning(s):
drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:112: warning: Function parameter or member 'gt' not described in 'guc_hwconfig_init'
drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:112: warning: expecting prototype for intel_guc_hwconfig_init(). Prototype was for guc_hwconfig_init() instead
drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:145: warning: Function parameter or member 'gt' not described in 'intel_gt_init_hwconfig'
drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:158: warning: Function parameter or member 'gt' not described in 'intel_gt_fini_hwconfig'
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230331092607.700644-16-lee@kernel.org
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PVC also has a hwconfig table. Actually the current expectation is that
all future platforms will have hwconfig, so let's just change the
condition to an IP version check so that we don't need to keep updating
this for each new platform that shows up.
Cc: John Harrison <john.c.harrison@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220524235906.529771-1-matthew.d.roper@intel.com
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ADL-N being a subplatform of ADL-P, it lacks support for hwconfig
table. Explicit check added to skip ADL-N.
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220523075116.207677-1-balasubramani.vivekanandan@intel.com
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v2:
* Jordan: Drop stepping/skew checking as suggested by John.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220331231737.315957-1-jordan.l.justen@intel.com
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Implement support for fetching the hardware description table from the
GuC. The call is made twice - once without a destination buffer to
query the size and then a second time to fill in the buffer.
The table is stored in the GT structure so that it can be fetched once
at driver load time. Keeping inside a GuC structure would mean it
would be release and reloaded on a GuC reset (part of a full GT
reset). However, the table does not change just because the GT has been
reset and the GuC reloaded. Also, dynamic memory allocations inside
the reset path are a problem.
Note that the table is only available on ADL-P and later platforms.
v2 (John's v2 patch):
* Move to GT level to avoid memory allocation during reset path (and
unnecessary re-read of the table on a reset).
v5 (of Jordan's posting):
* Various changes made by Jordan and recommended by Michal
- Makefile ordering
- Adjust "struct intel_guc_hwconfig hwconfig" comment
- Set Copyright year to 2022 in intel_guc_hwconfig.c/.h
- Drop inline from hwconfig_to_guc()
- Replace hwconfig param with guc in __guc_action_get_hwconfig()
- Move zero size check into guc_hwconfig_discover_size()
- Change comment to say zero size offset/size is needed to get size
- Add has_guc_hwconfig to devinfo and drop has_table()
- Change drm_err to notice in __uc_init_hw() and use %pe
v6 (of Jordan's posting):
* Added a couple more small changes recommended by Michal
* Merge in John's v2 patch, but note:
- Using drm_notice as recommended by Michal
- Reverted Michal's suggestion of using devinfo
v7 (of Jordan's posting):
* Change back to drm_err as preferred by John
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Jon Bloomfield <jon.bloomfield@intel.com>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220306232157.1174335-2-jordan.l.justen@intel.com
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