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include/drm/xe_drm.h does not exist. Prefer the explicit uapi include.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240827091539.4136838-1-jani.nikula@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Now that rtp has OR rules, it's not needed to extend it to process OOB
WAs. Previously if an entry had no name, it was considered as "a set of
rules OR'ed with the last named entry".
Instead of generating new entries, add OR rules. The syntax for
xe_wa_oob.rules remains the same, with xe_gen_wa_oob generating the
slightly different table. Object sizes delta are negligible, but having
just one logic makes it easier to maintain:
add/remove: 0/0 grow/shrink: 1/2 up/down: 160/-269 (-109)
Function old new delta
__compound_literal 6104 6264 +160
xe_wa_dump 1839 1810 -29
oob_was 816 576 -240
Total: Before=17257, After=17148, chg -0.63%
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240727015907.899192-9-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Stop doing the calculation both in rtp_mark_active() and in its caller.
The caller easily knows the number of entries to mark, so just pass it
forward. That also simplifies rtp_mark_active() since now it doesn't
have a special case when handling 1 entry.
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240727015907.899192-7-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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The OOB WAs use xe_rtp_process(), without passing an sr to save result
of the actions since there are none. They are also executed in a gt-only
context, making it harder to share the implementation. Thus, introduce a
new set of tests to check these RTP entries. The only check that can be
done is if the entry was marked as active.
Before commit fd6797ec50c5 ("drm/xe/rtp: Fix off-by-one when processing
rules") several of these tests were failing: the processing of OR'ed
entries would make the subsequent entry to be inadvertently enabled.
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240727015907.899192-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Enabling active tracking in the rtp context and check for all the tests
the expected entries become active.
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240727015907.899192-4-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Gustavo noticed an odd "+ 2" in rtp_mark_active() while processing
rtp rules and pointed that it should be "+ 1". In fact, while processing
entries without actions (OOB workarounds), if the WA is activated and
has OR rules, it will also inadvertently activate the very next
workaround.
Test in a LNL B0 platform by moving 18024947630 on top of 16020292621,
makes the latter become active:
$ cat /sys/kernel/debug/dri/0/gt0/workarounds
...
OOB Workarounds
18024947630
16020292621
14018094691
16022287689
13011645652
22019338487_display
In future a kunit test will be added to cover the rtp checks for entries
without actions.
Fixes: fe19328b900c ("drm/xe/rtp: Add support for entries with no action")
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240726064337.797576-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Increment the counter before checking for number of rules, otherwise
when there's no XE_RTP_MATCH_OR an out-of-bounds access is done, as
reported by kasan:
BUG: KASAN: global-out-of-bounds in rule_matches+0xb6d/0x11c0 [xe]
Read of size 1 at addr ffffffffa0a50b70 by task systemd-udevd/243
Fixes: dc72c52a42e0 ("drm/xe/rtp: Allow to OR rules")
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240628161726.836734-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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There are no RTP save-restore actions applicable for VFs on
current platforms. If any future platform will require some,
we will need to update the RTP framework to support VF_READY
or VF_ONLY actions. In the meantime, just skip all actions if
we are running as VF driver.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619214557.905-3-michal.wajdeczko@intel.com
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One surprising factor of GRAPHICS_VERSION()/MEDIA_VERSION() matching for
people adding new WAs is that it implicitly checks that the
graphics/media IP under check is of that specific type and not that the
device contains a media/graphics IP of that version. Add a new
*_ANY_GT() variant that can be used in that case.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240618050044.324454-5-lucas.demarchi@intel.com
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Some workarounds started to depend on different set of conditions where
the action should be applied if any of them match. See e.g.
commit 24d0d98af1c3 ("drm/xe/xe2lpm: Fixup Wa_14020756599"). Add
XE_RTP_MATCH_OR that allows to implement a logical OR for the rules.
Normal precedence applies:
r1, r2, OR, r3
means
(r1 AND r2) OR r3
The check is shortcut as soon as a set of conditions match.
v2: Do not match on empty number of rules-other-than-OR evaluated
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240618050044.324454-4-lucas.demarchi@intel.com
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This WA needs to be applied to graphics GT when the media version
is 2000. Currently, media version 2000 is always paired with
graphics version 2004 which will result in writing same register
with same bits twice. We can't add optional rule in rtp
framework and also writing same register with same bits gives
warning.
Currently, media version 2000 is always paired with graphics version
2004, so just checking the latter is sufficient.
V2(Lucas):
- Add more detail in commit message
- Improve code comment to follow guideline
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2016
Fixes: 131328aa5699 ("drm/xe/xe2lpm: Add permanent Wa_14020756599")
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240607122528.1048610-1-tejas.upadhyay@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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For xe2_lpm Wa_14020756599 is applied to all steppings and
when RCS is present on graphics GT.
V5(MattR):
- Add more comments about new API
V4:
- Make it part of lrc wa
- Check for RCS as rtp rule
V3(MattR):
- Rename rtp api name
- Use MEDIA_VERx100
V2:
- Remove engine filter video decode
- Fix typo GRAPHICS/MEDIA/s - Himal
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240603104951.705603-2-tejas.upadhyay@intel.com
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It's not possible for the condition checking if we're running on
platform without geometry pipeline to ever be true, since
gt->fuse_topo.g_dss_mask is an array.
It also breaks the build:
../drivers/gpu/drm/xe/xe_rtp.c:183:50: error: address of array 'gt->fuse_topo.g_dss_mask' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230523135020.345596-2-michal@hardline.pl
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Using uninitialized variables leads to undefined behavior.
Moreover, it causes the compiler to complain with:
../drivers/gpu/drm/xe/xe_vm.c:3265:40: error: variable 'vma' is uninitialized when used here [-Werror,-Wuninitialized]
../drivers/gpu/drm/xe/xe_rtp.c:118:36: error: variable 'i' is uninitialized when used here [-Werror,-Wuninitialized]
../drivers/gpu/drm/xe/xe_mocs.c:449:3: error: variable 'flags' is uninitialized when used here [-Werror,-Wuninitialized]
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230523135020.345596-1-michal@hardline.pl
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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DRM_ERROR() has been deprecated in favor of pr_err(). However, we should
prefer to use xe_gt_err() or drm_err() whenever possible so we get gt-
or device-specific output with the error message.
v2:
- Prefer drm_err() over pr_err(). (Matt, Jani)
v3:
- Prefer xe_gt_err() over drm_err() when possible. (Matt)
v4:
- Use the already available dev variable instead of xe->drm as
parameter to drm_err(). (Matt)
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Haridhar Kalvala <haridhar.kalvala@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230601194419.1179609-1-gustavo.sousa@intel.com
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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When running rules on MTL and beyond that have media as a standalone GT,
the rule should only match if the gt passed as parameter match the
version/range/stepping that the rule is checking. This allows
workarounds affecting only the media GT to be applied only on that GT
and vice-versa.
For platforms before MTL, the GT will not be of media type, even if it
includes media engines. Make sure to cover that case by checking if the
platforma has standalone media.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-21-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Add a separate struct to hold entries in a table that has no action
associated with each of them. The goal is that the caller in future can
set a per-context callback, or just use the active entry marking
feature.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-11-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Start differentiating the media and graphics stepping as it will be
important for MTL. Note that RTP is still not prepared to handle the
different types of GT, i.e. checking for graphics version/range/stepping
on a media gt or vice versa still matches regardless of the gt being
passed as parameter. Changing it to accommodate MTL is left for a future
patch.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-10-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Rename the RTP match in order to prepare the code base to check for the
media version. Up until MTL, the graphics vs media distinction wrt to
stepping was not ver relevant as they were the same GT. However, with
MTL this is no longer true.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-9-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Add the metadata in struct xe_rtp_process_ctx, to be set by
xe_rtp_process_ctx_enable_active_tracking(), so rtp knows how to mark
the active entries while processing the table. This can be used by the
WA infra to record what are the active workarounds.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The xe_rtp_process() function and xe_rtp_entry depend on the
save-restore struct. In future it will be desired to process rtp rules,
regardless of adding them to a save-restore. Rename the struct and
function so the intent is clear and the name is freed for future uses.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-5-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Now that rule_matches() always has an xe pointer, replace the XE_WARN_ON
with the more appropriate drm_warn().
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-4-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The selection between hwe and gt is exposed to the outside of rtp, by
the xe_rtp_process() function. However it doesn't make seense from the
caller point of view to pass a hwe and a gt as argument since the gt
should always be the one containing the hwe.
This clarifies the interface by separating the context creation into an
initializer. The initializer then passes the correct value and there
should never be a case with hwe and gt set: when hwe is passed, the gt
is the one containing it. Internally the functions continue receiving
the argument separately.
v2: Leave the device-only context to a separate patch if they are indeed
needed later
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-3-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Rename the address field to "addr" rather than "reg" so it's easier to
understand what it is.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20230508225322.2692066-4-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Now that struct xe_reg and struct xe_reg_mcr are types that can be used
by xe, convert more of the driver to use them. Some notes about the
conversions:
- The RTP tables don't need the MASKED flags anymore in the
actions as that information now comes from the register
definition
- There is no need for the _XE_RTP_REG/_XE_RTP_REG_MCR macros
and the register types on RTP infra: that comes from the
register definitions.
- When declaring the RTP entries, there is no need anymore to
undef XE_REG and friends: the RTP macros deal with removing
the cast where needed due to not being able to use a compound
statement for initialization in the tables
- The index in the reg-sr xarray is the register offset only.
Otherwise we wouldn't catch mistakes about adding both a
MCR-style and normal-style registers. For that, the register
is now also part of the entry, so the options can be compared
to check for compatible entries.
In order to be able to accomplish this, some improvements are needed on
the RTP macros. Change its implementation to concentrate on "pasting a prefix
to each argument" rather than the more general "call any macro for each
argument". Hopefully this will avoid trying to extend this infra and
making it more complex. With the use of tuples for building the
arguments, it's not possible to pass additional register fields and
using xe_reg in the RTP tables.
xe_mmio_* still need to be converted, from u32 to xe_reg, but that is
left for another change.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230427223256.1432787-10-lucas.demarchi@intel.com
Link: https://lore.kernel.org/r/20230427223256.1432787-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Add some basic unit tests for rtp. This is intended to prove the
functionality of the rtp itself, like coalescing entries, rejecting
non-disjoint values, etc.
Contrary to the other tests in xe, this is a unit test to test the
sw-side only, so it can be executed on any machine - it doesn't interact
with the real hardware. Running it produces the following output:
$ ./tools/testing/kunit/kunit.py run --raw_output-kunit \
--kunitconfig drivers/gpu/drm/xe/.kunitconfig xe_rtp
...
[01:26:27] Starting KUnit Kernel (1/1)...
KTAP version 1
1..1
KTAP version 1
# Subtest: xe_rtp
1..1
KTAP version 1
# Subtest: xe_rtp_process_tests
ok 1 coalesce-same-reg
ok 2 no-match-no-add
ok 3 no-match-no-add-multiple-rules
ok 4 two-regs-two-entries
ok 5 clr-one-set-other
ok 6 set-field
[drm:xe_reg_sr_add] *ERROR* Discarding save-restore reg 0001 (clear: 00000001, set: 00000001, masked: no): ret=-22
ok 7 conflict-duplicate
[drm:xe_reg_sr_add] *ERROR* Discarding save-restore reg 0001 (clear: 00000003, set: 00000000, masked: no): ret=-22
ok 8 conflict-not-disjoint
[drm:xe_reg_sr_add] *ERROR* Discarding save-restore reg 0001 (clear: 00000002, set: 00000002, masked: no): ret=-22
[drm:xe_reg_sr_add] *ERROR* Discarding save-restore reg 0001 (clear: 00000001, set: 00000001, masked: yes): ret=-22
ok 9 conflict-reg-type
# xe_rtp_process_tests: pass:9 fail:0 skip:0 total:9
ok 1 xe_rtp_process_tests
# Totals: pass:9 fail:0 skip:0 total:9
ok 1 xe_rtp
...
Note that the ERRORs in the kernel log are expected since it's testing
incompatible entries.
v2:
- Use parameterized table for tests (Michał Winiarski)
- Move everything to the xe_rtp_test.ko and only add a few exports to the
right namespace
- Add more tests to cover FIELD_SET, CLR, partially true rules, etc
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Maarten Lankhorst<maarten.lankhorst@linux.intel.com> # v1
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://lore.kernel.org/r/20230401085151.1786204-7-lucas.demarchi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Add match helper to detect when the first gslice is fused off, as needed
by future workarounds.
v2:
- Add warning if called on a platform without geometry pipeline
(Matt Roper)
- Hardcode 4 as the number of gslices, which matches all the currently
supported platforms. PVC doesn't have geometry pipeline and
shouldn't use this function (Matt Roper)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230314003012.2600353-2-lucas.demarchi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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This allows to create WA/tuning rules that match the first engine that
is either of compute or render class. This matters for platforms that
don't have a render engine and that may have arbitrary compute engines
fused off: some register programming need to be added to one of those
engines.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Match functions are generally useful for other parts of the code (e.g.
xe_tuning.c). Move and rename the single one available to create a place
where similar match functions can be added.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Just like there is support for multiple rules per entry in an rtp table,
also support multiple actions. This makes it easier to add support for
workarounds that need to change multiple registers. It also makes it
slightly more readable as now the action part resembles the rule part.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Entry flags is meant for the whole entry, including the rule
evaluation. Action flags are for flags applied to the register or
action being taken. Since there's only one action per entry, the
distinction was not important and a u8 was spared. However more and more
workarounds are needing multiple actions. This prepares for multiple
action support.
Right now there are these action flags:
- XE_RTP_ACTION_FLAG_MASKED_REG: register in the action is a masked
register
- XE_RTP_ACTION_FLAG_ENGINE_BASE: the engine base should be added to
the register in order to form the real address
And this entry flag:
- XE_RTP_ENTRY_FLAG_FOREACH_ENGINE: the rules should be evaluated for
each engine on the gt. It also automatically implies
XE_RTP_ACTION_FLAG_ENGINE_BASE.
Since there are likely not that many rules, reduce n_rules to u8 so the
overall entry size doesn't increase more than needed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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It's true that the struct records the register and the value (in form of
2 masks) to restore, but it also records more fields important to
the application of workarounds/tuning, etc. One important part is what
is the macro used to record these fields: SET/CLR/WR/FIELD_SET/etc.
Thinking of the table as a set of rules + actions is more intuitive than
rules + regval.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Xe, is a new driver for Intel GPUs that supports both integrated and
discrete platforms starting with Tiger Lake (first Intel Xe Architecture).
The code is at a stage where it is already functional and has experimental
support for multiple platforms starting from Tiger Lake, with initial
support implemented in Mesa (for Iris and Anv, our OpenGL and Vulkan
drivers), as well as in NEO (for OpenCL and Level0).
The new Xe driver leverages a lot from i915.
As for display, the intent is to share the display code with the i915
driver so that there is maximum reuse there. But it is not added
in this patch.
This initial work is a collaboration of many people and unfortunately
the big squashed patch won't fully honor the proper credits. But let's
get some git quick stats so we can at least try to preserve some of the
credits:
Co-developed-by: Matthew Brost <matthew.brost@intel.com>
Co-developed-by: Matthew Auld <matthew.auld@intel.com>
Co-developed-by: Matt Roper <matthew.d.roper@intel.com>
Co-developed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Co-developed-by: Francois Dugast <francois.dugast@intel.com>
Co-developed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Co-developed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Co-developed-by: Philippe Lecluse <philippe.lecluse@intel.com>
Co-developed-by: Nirmoy Das <nirmoy.das@intel.com>
Co-developed-by: Jani Nikula <jani.nikula@intel.com>
Co-developed-by: José Roberto de Souza <jose.souza@intel.com>
Co-developed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Co-developed-by: Dave Airlie <airlied@redhat.com>
Co-developed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Co-developed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Co-developed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
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