439c8dccb6
Add new runtime info field for stepping. Add new helpers for accessing them. As we'll be switching platforms over to the new scheme incrementally, check for non-initialized steppings. In case a platform does not have separate display and gt steppings, it's okay to use a common shorthand. However, in this case the display stepping must not be initialized, and gt stepping is the single point of truth. v3: Remove IS_STEP() (José) v2: Rename stepping->step Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/bb4275733fa390ea3dbf6f62794d55b616665230.1616764798.git.jani.nikula@intel.com
40 lines
915 B
C
40 lines
915 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2020,2021 Intel Corporation
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*/
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#ifndef __INTEL_STEP_H__
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#define __INTEL_STEP_H__
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#include <linux/types.h>
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struct i915_rev_steppings {
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u8 gt_stepping;
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u8 disp_stepping;
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};
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#define TGL_UY_REVID_STEP_TBL_SIZE 4
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#define TGL_REVID_STEP_TBL_SIZE 2
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#define ADLS_REVID_STEP_TBL_SIZE 13
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extern const struct i915_rev_steppings kbl_revids[];
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extern const struct i915_rev_steppings tgl_uy_revid_step_tbl[TGL_UY_REVID_STEP_TBL_SIZE];
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extern const struct i915_rev_steppings tgl_revid_step_tbl[TGL_REVID_STEP_TBL_SIZE];
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extern const struct i915_rev_steppings adls_revid_step_tbl[ADLS_REVID_STEP_TBL_SIZE];
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/*
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* Symbolic steppings that do not match the hardware. These are valid both as gt
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* and display steppings as symbolic names.
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*/
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enum intel_step {
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STEP_NONE = 0,
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STEP_A0,
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STEP_A2,
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STEP_B0,
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STEP_B1,
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STEP_C0,
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STEP_D0,
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};
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#endif /* __INTEL_STEP_H__ */
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