kernel/drivers/gpu/drm/i915/intel_step.h, branch linux-6.9.y

drm/i915: Add wrapper for getting display step

2023-10-11T09:49:48Z

Add a wrapper around intel_step_name that takes in driver data as an argument. This wrapper will help maintain compatibility with the proposed xe driver. Signed-off-by: Chaitanya Kumar Borah Signed-off-by: Animesh Manna Reviewed-by: Uma Shankar Signed-off-by: Uma Shankar Link: https://patchwork.freedesktop.org/patch/msgid/20231003065211.1052385-1-chaitanya.kumar.borah@intel.com

drm/i915: Parse and set stepping for platforms with GMD

2022-09-24T00:37:23Z

Expand the current stepping convention to accommodate the GMD stepping info. Typically GMD step maps to letter stepping by "A + step %4" and number to "A + step /4" i.e, GMD step 0 maps to STEP_A0, 1 to _A1, 2 to _A2, 3 to _A3, 4 to STEP_B0... Future platforms might break this formulae and may require a table mapping to decode GMD step compatible with the convention. v2: - Pass the updated ip version structure v3: - Skip using GMD to step table(MattR) Cc: Balasubramani Vivekanandan Cc: Matt Roper Reviewed-by: Lucas De Marchi Signed-off-by: Radhakrishna Sripada Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20220916014648.1310346-3-radhakrishna.sripada@intel.com

drm/i915/pvc: Extract stepping information from PCI revid

2022-05-31T21:44:57Z

For PVC, the base die and compute tile have separate stepping values that we need to track; we'll use the existing graphics_step field to represent the compute tile stepping and add a new 'basedie_step' field. Unlike past platforms, steppings for these components are represented by specific bitfields within the PCI revision ID, and we shouldn't make assumptions about the non-CT, non-BD bits staying 0. Let's update our stepping code accordingly. Bspec: 44484 Signed-off-by: Matt Roper Reviewed-by: Matt Atwood Link: https://patchwork.freedesktop.org/patch/msgid/20220527163348.1936146-2-matthew.d.roper@intel.com

drm/i915: Rename GT_STEP to GRAPHICS_STEP

2021-11-02T20:05:40Z

As now graphics and media can have different steppings this patch is renaming all _GT_STEP macros to _GRAPHICS_STEP. Future platforms will properly choose between _MEDIA_STEP and _GRAPHICS_STEP for each new workaround. Cc: Matt Atwood Cc: Radhakrishna Sripada Signed-off-by: José Roberto de Souza Reviewed-by: Caz Yokoyama Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20211020002353.193893-3-jose.souza@intel.com

drm/i915: Track media IP stepping separated from GT

2021-11-02T20:05:37Z

Graphics and media IPs can have different stepping so a new field is needed in intel_step_info. The next patch will take care of rename gt_step to graphics_step. Cc: Radhakrishna Sripada Cc: Matt Atwood Signed-off-by: José Roberto de Souza Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20211020002353.193893-2-jose.souza@intel.com

drm/i915/step: Add macro magic for handling steps

2021-07-22T17:18:06Z

With the addition of stepping info for all platforms, lets use macros for handling them and autogenerating code for all steps at a time. Suggested-by: Matt Roper Cc: Lucas De Marchi Signed-off-by: Anusha Srivatsa Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20210721215238.24980-1-anusha.srivatsa@intel.com

drm/i915/adl_s: Wa_14011765242 is also needed on A1 display stepping

2021-07-21T17:46:07Z

Extend the workaround bound to include A1 display. Bspec: 54370 Signed-off-by: Matt Roper Reviewed-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20210717051426.4120328-5-matthew.d.roper@intel.com

drm/i915/skl: Use revid->stepping tables

2021-07-15T00:35:59Z

Switch SKL to use a revid->stepping table as we're trying to do on all platforms going forward. Also drop the preproduction revisions and add the newer steppings we hadn't already handled. Note that SKL has a case where a newer revision ID corresponds to an older GT/disp stepping (0x9 -> STEP_J0, 0xA -> STEP_I1). Also, the lack of a revision ID 0x8 in the table is intentional and not an oversight. We'll re-write the KBL-specific comment to make it clear that these kind of quirks are expected. v2: - Since GT and display steppings are always identical on SKL use a macro to set both values at once in a more readable manner. (Anusha) - Drop preproduction steppings. Bspec: 13626 Cc: Anusha Srivatsa Signed-off-by: Matt Roper Reviewed-by: Anusha Srivatsa Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-4-matthew.d.roper@intel.com

drm/i915: rename i915_rev_steppings->intel_step_info

2021-03-29T11:56:26Z

Matter of taste. Match the prefix for everything else related to steppings. No functional changes. Reviewed-by: José Roberto de Souza Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/d3ba7c448e596fd2425a29bcc7ea8493505a30f9.1616764798.git.jani.nikula@intel.com

drm/i915: rename disp_stepping->display_step and gt_stepping->gt_step

2021-03-29T11:56:22Z

Matter of taste. Step matches the enums. Reviewed-by: José Roberto de Souza Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/1724c8bde0e0f596240437d72ace60b9c34ae9db.1616764798.git.jani.nikula@intel.com