480 lines
15 KiB
C
480 lines
15 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _XE_RTP_
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#define _XE_RTP_
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#include <linux/types.h>
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#include <linux/xarray.h>
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#define _XE_RTP_INCLUDE_PRIVATE_HELPERS
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#include "xe_rtp_helpers.h"
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#include "xe_rtp_types.h"
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#undef _XE_RTP_INCLUDE_PRIVATE_HELPERS
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/*
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* Register table poke infrastructure
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*/
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struct xe_hw_engine;
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struct xe_gt;
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struct xe_reg_sr;
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/*
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* Macros to encode rules to match against platform, IP version, stepping, etc.
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* Shouldn't be used directly - see XE_RTP_RULES()
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*/
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#define _XE_RTP_RULE_PLATFORM(plat__) \
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{ .match_type = XE_RTP_MATCH_PLATFORM, .platform = plat__ }
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#define _XE_RTP_RULE_SUBPLATFORM(plat__, sub__) \
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{ .match_type = XE_RTP_MATCH_SUBPLATFORM, \
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.platform = plat__, .subplatform = sub__ }
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#define _XE_RTP_RULE_GRAPHICS_STEP(start__, end__) \
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{ .match_type = XE_RTP_MATCH_GRAPHICS_STEP, \
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.step_start = start__, .step_end = end__ }
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#define _XE_RTP_RULE_MEDIA_STEP(start__, end__) \
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{ .match_type = XE_RTP_MATCH_MEDIA_STEP, \
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.step_start = start__, .step_end = end__ }
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#define _XE_RTP_RULE_ENGINE_CLASS(cls__) \
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{ .match_type = XE_RTP_MATCH_ENGINE_CLASS, \
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.engine_class = (cls__) }
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/**
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* XE_RTP_RULE_PLATFORM - Create rule matching platform
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* @plat_: platform to match
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_PLATFORM(plat_) \
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_XE_RTP_RULE_PLATFORM(XE_##plat_)
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/**
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* XE_RTP_RULE_SUBPLATFORM - Create rule matching platform and sub-platform
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* @plat_: platform to match
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* @sub_: sub-platform to match
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_SUBPLATFORM(plat_, sub_) \
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_XE_RTP_RULE_SUBPLATFORM(XE_##plat_, XE_SUBPLATFORM_##plat_##_##sub_)
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/**
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* XE_RTP_RULE_GRAPHICS_STEP - Create rule matching graphics stepping
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* @start_: First stepping matching the rule
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* @end_: First stepping that does not match the rule
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*
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* Note that the range matching this rule is [ @start_, @end_ ), i.e. inclusive
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* on the left, exclusive on the right.
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_GRAPHICS_STEP(start_, end_) \
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_XE_RTP_RULE_GRAPHICS_STEP(STEP_##start_, STEP_##end_)
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/**
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* XE_RTP_RULE_MEDIA_STEP - Create rule matching media stepping
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* @start_: First stepping matching the rule
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* @end_: First stepping that does not match the rule
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*
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* Note that the range matching this rule is [ @start_, @end_ ), i.e. inclusive
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* on the left, exclusive on the right.
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_MEDIA_STEP(start_, end_) \
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_XE_RTP_RULE_MEDIA_STEP(STEP_##start_, STEP_##end_)
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/**
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* XE_RTP_RULE_ENGINE_CLASS - Create rule matching an engine class
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* @cls_: Engine class to match
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_ENGINE_CLASS(cls_) \
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_XE_RTP_RULE_ENGINE_CLASS(XE_ENGINE_CLASS_##cls_)
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/**
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* XE_RTP_RULE_FUNC - Create rule using callback function for match
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* @func__: Function to call to decide if rule matches
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*
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* This allows more complex checks to be performed. The ``XE_RTP``
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* infrastructure will simply call the function @func_ passed to decide if this
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* rule matches the device.
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_FUNC(func__) \
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{ .match_type = XE_RTP_MATCH_FUNC, \
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.match_func = (func__) }
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/**
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* XE_RTP_RULE_GRAPHICS_VERSION - Create rule matching graphics version
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* @ver__: Graphics IP version to match
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_GRAPHICS_VERSION(ver__) \
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{ .match_type = XE_RTP_MATCH_GRAPHICS_VERSION, \
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.ver_start = ver__, }
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/**
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* XE_RTP_RULE_GRAPHICS_VERSION_RANGE - Create rule matching a range of graphics version
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* @ver_start__: First graphics IP version to match
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* @ver_end__: Last graphics IP version to match
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*
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* Note that the range matching this rule is [ @ver_start__, @ver_end__ ], i.e.
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* inclusive on boths sides
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_GRAPHICS_VERSION_RANGE(ver_start__, ver_end__) \
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{ .match_type = XE_RTP_MATCH_GRAPHICS_VERSION_RANGE, \
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.ver_start = ver_start__, .ver_end = ver_end__, }
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/**
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* XE_RTP_RULE_GRAPHICS_VERSION_ANY_GT - Create rule matching graphics version on any GT
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* @ver__: Graphics IP version to match
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*
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* Like XE_RTP_RULE_GRAPHICS_VERSION, but it matches even if the current GT
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* being checked is not of the graphics type. It allows to add RTP entries to
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* another GT when the device contains a Graphics IP with that version.
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_GRAPHICS_VERSION_ANY_GT(ver__) \
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{ .match_type = XE_RTP_MATCH_GRAPHICS_VERSION_ANY_GT, \
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.ver_start = ver__, }
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/**
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* XE_RTP_RULE_MEDIA_VERSION - Create rule matching media version
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* @ver__: Media IP version to match
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_MEDIA_VERSION(ver__) \
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{ .match_type = XE_RTP_MATCH_MEDIA_VERSION, \
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.ver_start = ver__, }
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/**
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* XE_RTP_RULE_MEDIA_VERSION_RANGE - Create rule matching a range of media version
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* @ver_start__: First media IP version to match
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* @ver_end__: Last media IP version to match
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*
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* Note that the range matching this rule is [ @ver_start__, @ver_end__ ], i.e.
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* inclusive on boths sides
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_MEDIA_VERSION_RANGE(ver_start__, ver_end__) \
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{ .match_type = XE_RTP_MATCH_MEDIA_VERSION_RANGE, \
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.ver_start = ver_start__, .ver_end = ver_end__, }
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/**
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* XE_RTP_RULE_MEDIA_VERSION_ANY_GT - Create rule matching media version on any GT
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* @ver__: Media IP version to match
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*
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* Like XE_RTP_RULE_MEDIA_VERSION, but it matches even if the current GT being
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* checked is not of the media type. It allows to add RTP entries to another
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* GT when the device contains a Media IP with that version.
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_MEDIA_VERSION_ANY_GT(ver__) \
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{ .match_type = XE_RTP_MATCH_MEDIA_VERSION_ANY_GT, \
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.ver_start = ver__, }
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/**
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* XE_RTP_RULE_IS_INTEGRATED - Create a rule matching integrated graphics devices
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_IS_INTEGRATED \
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{ .match_type = XE_RTP_MATCH_INTEGRATED }
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/**
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* XE_RTP_RULE_IS_DISCRETE - Create a rule matching discrete graphics devices
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*
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* Refer to XE_RTP_RULES() for expected usage.
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*/
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#define XE_RTP_RULE_IS_DISCRETE \
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{ .match_type = XE_RTP_MATCH_DISCRETE }
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/**
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* XE_RTP_RULE_OR - Create an OR condition for rtp rules
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*
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* RTP rules are AND'ed when evaluated and all of them need to match.
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* XE_RTP_RULE_OR allows to create set of rules where any of them matching is
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* sufficient for the action to trigger. Example:
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*
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* .. code-block:: c
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*
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* const struct xe_rtp_entry_sr entries[] = {
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* ...
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* { XE_RTP_NAME("test-entry"),
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* XE_RTP_RULES(PLATFORM(DG2), OR, PLATFORM(TIGERLAKE)),
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* ...
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* },
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* ...
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* };
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*/
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#define XE_RTP_RULE_OR \
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{ .match_type = XE_RTP_MATCH_OR }
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/**
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* XE_RTP_ACTION_WR - Helper to write a value to the register, overriding all
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* the bits
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* @reg_: Register
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* @val_: Value to set
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* @...: Additional fields to override in the struct xe_rtp_action entry
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*
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* The correspondent notation in bspec is:
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*
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* REGNAME = VALUE
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*/
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#define XE_RTP_ACTION_WR(reg_, val_, ...) \
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.clr_bits = ~0u, .set_bits = (val_), \
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.read_mask = (~0u), ##__VA_ARGS__ }
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/**
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* XE_RTP_ACTION_SET - Set bits from @val_ in the register.
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* @reg_: Register
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* @val_: Bits to set in the register
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* @...: Additional fields to override in the struct xe_rtp_action entry
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*
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* For masked registers this translates to a single write, while for other
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* registers it's a RMW. The correspondent bspec notation is (example for bits 2
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* and 5, but could be any):
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*
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* REGNAME[2] = 1
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* REGNAME[5] = 1
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*/
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#define XE_RTP_ACTION_SET(reg_, val_, ...) \
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.clr_bits = val_, .set_bits = val_, \
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.read_mask = val_, ##__VA_ARGS__ }
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/**
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* XE_RTP_ACTION_CLR: Clear bits from @val_ in the register.
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* @reg_: Register
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* @val_: Bits to clear in the register
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* @...: Additional fields to override in the struct xe_rtp_action entry
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*
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* For masked registers this translates to a single write, while for other
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* registers it's a RMW. The correspondent bspec notation is (example for bits 2
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* and 5, but could be any):
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*
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* REGNAME[2] = 0
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* REGNAME[5] = 0
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*/
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#define XE_RTP_ACTION_CLR(reg_, val_, ...) \
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.clr_bits = val_, .set_bits = 0, \
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.read_mask = val_, ##__VA_ARGS__ }
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/**
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* XE_RTP_ACTION_FIELD_SET: Set a bit range
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* @reg_: Register
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* @mask_bits_: Mask of bits to be changed in the register, forming a field
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* @val_: Value to set in the field denoted by @mask_bits_
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* @...: Additional fields to override in the struct xe_rtp_action entry
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*
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* For masked registers this translates to a single write, while for other
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* registers it's a RMW. The correspondent bspec notation is:
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*
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* REGNAME[<end>:<start>] = VALUE
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*/
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#define XE_RTP_ACTION_FIELD_SET(reg_, mask_bits_, val_, ...) \
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.clr_bits = mask_bits_, .set_bits = val_, \
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.read_mask = mask_bits_, ##__VA_ARGS__ }
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#define XE_RTP_ACTION_FIELD_SET_NO_READ_MASK(reg_, mask_bits_, val_, ...) \
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.clr_bits = (mask_bits_), .set_bits = (val_), \
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.read_mask = 0, ##__VA_ARGS__ }
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/**
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* XE_RTP_ACTION_WHITELIST - Add register to userspace whitelist
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* @reg_: Register
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* @val_: Whitelist-specific flags to set
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* @...: Additional fields to override in the struct xe_rtp_action entry
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*
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* Add a register to the whitelist, allowing userspace to modify the ster with
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* regular user privileges.
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*/
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#define XE_RTP_ACTION_WHITELIST(reg_, val_, ...) \
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/* TODO fail build if ((flags) & ~(RING_FORCE_TO_NONPRIV_MASK_VALID)) */\
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{ .reg = XE_RTP_DROP_CAST(reg_), \
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.set_bits = val_, \
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.clr_bits = RING_FORCE_TO_NONPRIV_MASK_VALID, \
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##__VA_ARGS__ }
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/**
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* XE_RTP_NAME - Helper to set the name in xe_rtp_entry
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* @s_: Name describing this rule, often a HW-specific number
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*
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* TODO: maybe move this behind a debug config?
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*/
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#define XE_RTP_NAME(s_) .name = (s_)
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/**
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* XE_RTP_ENTRY_FLAG - Helper to add multiple flags to a struct xe_rtp_entry_sr
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* @...: Entry flags, without the ``XE_RTP_ENTRY_FLAG_`` prefix
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*
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* Helper to automatically add a ``XE_RTP_ENTRY_FLAG_`` prefix to the flags
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* when defining struct xe_rtp_entry entries. Example:
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*
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* .. code-block:: c
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*
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* const struct xe_rtp_entry_sr wa_entries[] = {
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* ...
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* { XE_RTP_NAME("test-entry"),
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* ...
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* XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
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* ...
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* },
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* ...
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* };
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*/
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#define XE_RTP_ENTRY_FLAG(...) \
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.flags = (XE_RTP_PASTE_FOREACH(ENTRY_FLAG_, BITWISE_OR, (__VA_ARGS__)))
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/**
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* XE_RTP_ACTION_FLAG - Helper to add multiple flags to a struct xe_rtp_action
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* @...: Action flags, without the ``XE_RTP_ACTION_FLAG_`` prefix
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*
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* Helper to automatically add a ``XE_RTP_ACTION_FLAG_`` prefix to the flags
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* when defining struct xe_rtp_action entries. Example:
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*
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* .. code-block:: c
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*
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* const struct xe_rtp_entry_sr wa_entries[] = {
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* ...
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* { XE_RTP_NAME("test-entry"),
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* ...
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* XE_RTP_ACTION_SET(..., XE_RTP_ACTION_FLAG(FOREACH_ENGINE)),
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* ...
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* },
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* ...
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* };
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*/
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#define XE_RTP_ACTION_FLAG(...) \
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.flags = (XE_RTP_PASTE_FOREACH(ACTION_FLAG_, BITWISE_OR, (__VA_ARGS__)))
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/**
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* XE_RTP_RULES - Helper to set multiple rules to a struct xe_rtp_entry_sr entry
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* @...: Rules
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*
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* At least one rule is needed and up to 12 are supported. Multiple rules are
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* AND'ed together, i.e. all the rules must evaluate to true for the entry to
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* be processed. See XE_RTP_MATCH_* for the possible match rules. Example:
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*
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* .. code-block:: c
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*
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* const struct xe_rtp_entry_sr wa_entries[] = {
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* ...
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* { XE_RTP_NAME("test-entry"),
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* XE_RTP_RULES(SUBPLATFORM(DG2, G10), GRAPHICS_STEP(A0, B0)),
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* ...
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* },
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* ...
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* };
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*/
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#define XE_RTP_RULES(...) \
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.n_rules = COUNT_ARGS(__VA_ARGS__), \
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.rules = (const struct xe_rtp_rule[]) { \
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XE_RTP_PASTE_FOREACH(RULE_, COMMA, (__VA_ARGS__)) \
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}
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/**
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* XE_RTP_ACTIONS - Helper to set multiple actions to a struct xe_rtp_entry_sr
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* @...: Actions to be taken
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*
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* At least one action is needed and up to 12 are supported. See XE_RTP_ACTION_*
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* for the possible actions. Example:
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*
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* .. code-block:: c
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*
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* const struct xe_rtp_entry_sr wa_entries[] = {
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* ...
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* { XE_RTP_NAME("test-entry"),
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* XE_RTP_RULES(...),
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* XE_RTP_ACTIONS(SET(..), SET(...), CLR(...)),
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* ...
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* },
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* ...
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* };
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*/
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#define XE_RTP_ACTIONS(...) \
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.n_actions = COUNT_ARGS(__VA_ARGS__), \
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.actions = (const struct xe_rtp_action[]) { \
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XE_RTP_PASTE_FOREACH(ACTION_, COMMA, (__VA_ARGS__)) \
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}
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#define XE_RTP_PROCESS_CTX_INITIALIZER(arg__) _Generic((arg__), \
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struct xe_hw_engine * : (struct xe_rtp_process_ctx){ { (void *)(arg__) }, XE_RTP_PROCESS_TYPE_ENGINE }, \
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struct xe_gt * : (struct xe_rtp_process_ctx){ { (void *)(arg__) }, XE_RTP_PROCESS_TYPE_GT })
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void xe_rtp_process_ctx_enable_active_tracking(struct xe_rtp_process_ctx *ctx,
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unsigned long *active_entries,
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size_t n_entries);
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void xe_rtp_process_to_sr(struct xe_rtp_process_ctx *ctx,
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const struct xe_rtp_entry_sr *entries,
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struct xe_reg_sr *sr);
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void xe_rtp_process(struct xe_rtp_process_ctx *ctx,
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const struct xe_rtp_entry *entries);
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/* Match functions to be used with XE_RTP_MATCH_FUNC */
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/**
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* xe_rtp_match_even_instance - Match if engine instance is even
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* @gt: GT structure
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* @hwe: Engine instance
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*
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* Returns: true if engine instance is even, false otherwise
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*/
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bool xe_rtp_match_even_instance(const struct xe_gt *gt,
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const struct xe_hw_engine *hwe);
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/*
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* xe_rtp_match_first_render_or_compute - Match if it's first render or compute
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* engine in the GT
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*
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* @gt: GT structure
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* @hwe: Engine instance
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*
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* Registers on the render reset domain need to have their values re-applied
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* when any of those engines are reset. Since the engines reset together, a
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* programming can be set to just one of them. For simplicity the first engine
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* of either render or compute class can be chosen.
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*
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* Returns: true if engine id is the first to match the render reset domain,
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* false otherwise.
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*/
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bool xe_rtp_match_first_render_or_compute(const struct xe_gt *gt,
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const struct xe_hw_engine *hwe);
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/*
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* xe_rtp_match_first_gslice_fused_off - Match when first gslice is fused off
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*
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* @gt: GT structure
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* @hwe: Engine instance
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*
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* Returns: true if first gslice is fused off, false otherwise.
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*/
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bool xe_rtp_match_first_gslice_fused_off(const struct xe_gt *gt,
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const struct xe_hw_engine *hwe);
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#endif
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