ee421bb4cb
Each gt contains an independent instance of pcode. Extend pcode functions
to interface with pcode on different gt's. To avoid creating dependency of
display functionality on intel_gt, pcode function interfaces are exposed in
terms of uncore rather than intel_gt. Callers have been converted to pass
in the appropritate (i915 or intel_gt) uncore to the pcode functions.
v2: Expose pcode functions in terms of uncore rather than gt (Jani/Rodrigo)
v3: Retain previous function names to eliminate needless #defines (Rodrigo)
v4: Move out i915_pcode_init() to a separate patch (Tvrtko)
Remove duplicated drm_err/drm_dbg from intel_pcode_init() (Tvrtko)
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220519085732.1276255-2-tvrtko.ursulin@linux.intel.com
[tursulin: fixup merge conflict]
25 lines
700 B
C
25 lines
700 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2013-2021 Intel Corporation
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*/
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#ifndef _INTEL_PCODE_H_
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#define _INTEL_PCODE_H_
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#include <linux/types.h>
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struct intel_uncore;
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int snb_pcode_read(struct intel_uncore *uncore, u32 mbox, u32 *val, u32 *val1);
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int snb_pcode_write_timeout(struct intel_uncore *uncore, u32 mbox, u32 val,
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int fast_timeout_us, int slow_timeout_ms);
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#define snb_pcode_write(uncore, mbox, val) \
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snb_pcode_write_timeout(uncore, mbox, val, 500, 0)
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int skl_pcode_request(struct intel_uncore *uncore, u32 mbox, u32 request,
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u32 reply_mask, u32 reply, int timeout_base_ms);
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int intel_pcode_init(struct intel_uncore *uncore);
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#endif /* _INTEL_PCODE_H */
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