drm/i915/xe2hpd: Add max memory bandwidth algorithm

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Unlike DG2, Xe2_HPD does support multiple GV points with different
maximum memory bandwidths, but uses a much simpler algorithm than igpu
platforms use.

Bspec: 64631
CC: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240430172850.1881525-12-radhakrishna.sripada@intel.com

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This commit is contained in:

Matt Roper 2024-04-30 10:28:42 -07:00 • committed by Radhakrishna Sripada

parent 0dffea1e2d

commit 772933b3ab

4 changed files with 69 additions and 2 deletions

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65

drivers/gpu/drm/i915/display/intel_bw.c

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1

drivers/gpu/drm/i915/i915_drv.h

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4

drivers/gpu/drm/i915/soc/intel_dram.c

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1

drivers/gpu/drm/xe/xe_device_types.h

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