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The FBVDD_PWR_EN signal should be inverted in its control level
on Agah v.s. Hades. The original change covered the Hades
implementation, but needs to be updated to invert for Agah. This
change can be removed once we drop support for Agah.
BUG=b:280467267
TEST=built for Hades and Agah
Change-Id: I7f90c03b8d9b859004e5c124bf0a1f7b59921c3d
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75530
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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GC6 - Low power mode for system idle on Nvidia GPU
In GC6I Before ramp of PEXVDD:
Deassert FBVDDQ Enable, no delay is needed before or after.
In GC6O After ramp of PEXVDD:
Assert FBVDDQ Enable, no delay is needed before or after.
BUG=b:280467267
TEST=built for Hades and Agah, tested on Agah
Signed-off-by: Eran Mitrani <mitrani@google.com>
Change-Id: I0277772b1d2f6f4e6a3f74b92035e8b36f2670ba
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75302
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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For the sequenced controlled shutdown path, there's a 10ms delay
after the PEXVDD rail is disabled to permit discharge needed on
Agah/Proxima.
This can be dropped to 3ms for Hades designs Proto0 and forward.
Once Agah board is dropped, "if CONFIG" can be cleaned up/removed.
BUG=b:271167335
TEST=builds
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I8a0d62ec76caff861adce2d6c0ba2d4e4064affa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75051
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The signals for the NV33 regulator were swapped (enable and power
good). Switch these back to the way they should be:
GPIO_NV33_PWR_EN GPP_E1
GPIO_NV33_PG GPP_E2
BUG=b:269371363
TEST=builds
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: Ic2a53103e1feadd7ecebd4bed02dcc34410b8e3b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74693
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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Implement the GPS_REQUESTDXSTATE function which forces the
current D notifier state to re-report.
TEST=verified that notifications are forced out when invoked using
acpiexec
BUG=b:271938907
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I6dab9b793fe1d0b1c875eddbe6ae324d2894efe6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73890
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Currently the DNOT function first checks to see if the current DNOT
value has already been reported. Add support to allow forcing regardless
if it had been sent already.
TEST=confirmed that when enabled, all events notify. When disabled, only
events on value change are notified.
BUG=b:271938907
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I7a93cca6a8f922574dd46b46572b230755db9aa7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73900
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Currently the value was being truncated to 4 bytes. Change so that
the full 8 byte value is passed.
TEST=verified function returns expected value using acpiexec
BUG=b:271938907
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: Icfc775de680e328a2b240595223d7098fee3dc3b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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This function adds support to convert a integer into a 8 byte buffer
TEST=verified returned buffer is as expected using acpiexec
BUG=b:271938907
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I89eb50f1452657c26b97eb5609ed956fa8ee8117
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73898
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The logic was not equals, rather than the intended greater than or
equal to for checking the minimum GPS revision.
TEST=version check passes as expected now
BUG=b:271938907
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I66bf1fc32295e1b9e9c41c661ea8e395a1592a86
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73897
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Add GPU power sequencing changes for the Hades baseboard and variant.
Some signals were added, moved or inverted.
Based on implementation from Agah.
Moved signals:
GPIO_1V8_PWR_EN GPP_E11
GPIO_NV33_PWR_EN GPP_E2
GPIO_NV33_PG GPP_E1
New signals:
GPIO_NV12_PWR_EN GPP_D0
GPIO_NV12_PG GPP_D1
Inverted signals:
GPIO_FBVDD_PWR_EN GPP_A19
ifdef's will be dropped once the Agah variant is retired.
BUG=b:269371363
TEST=builds and verified on Agah that DGPU is still detectable (lspci)
Change-Id: I0b8efe7a34102cf61d4f784103c4a4f9337213f7
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73896
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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The DC boost bit was intended to be in the Controller Params word rather
than its own byte. Correct this error.
BUG=b:214581372
TEST=build
Change-Id: Ie65e57a351f0fc1f0c80ef320fd87043ee22916c
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73216
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
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The NVPCF DSM subfunction specified a incorrect checksum.
Update this function to the proper checksum of 0xaf.
BUG=b:214581372
TEST=build
Change-Id: Ib58bd6cc10703ca67a7a4f520273865a95a4702b
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72676
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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1) Update location of TGP (MAGA) to Params2[15:0]
2) Add TPPA (value of 25W)
Package:
...
Case (0x02)
{
Local0 = Buffer (0x31)
{
0x22, 0x05, 0x10, 0x1C, 0x01
}
CreateWordField (Local0, 0x1D, MAGA)
CreateWordField (Local0, 0x19, TPPA)
CreateDWordField (Local0, 0x15, CEO0)
MAGA = 0x50
TPPA = 0xC8
CEO0 = 0x0200
Return (Local0)
}
...
BUG=b:214581372
TEST=build and verify DSDT on device
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I69b80f4af2ecef6cf91034fc15fb6e8715eeca4f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69639
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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PP1800_GPU_X should dynamically move from GPP_E18 to GPP_F12
depending on board revision.
PP0950_GPU_X (PEX) should remain on GPP_E10 for all board
revisions.
BUG=b:242752623
TEST=dGPU is functional on both revisions of the board
Change-Id: I20994fcac4d7b98ee893d5eb98b096c037d31d6c
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70320
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The next rev of this board will move the dGPU PEXVDD enable pin from
GPP_E10 to GPP_F12. This patch handles both the old and newer revisions
by using an ACPI Name to hold the GPIO # for PEXVDD enable. It also
cleans up the GPIO handling a little bit between board revs.
BUG=b:242752623
TEST=dGPU is functional and power sequencing tests still pass on board
rev 2
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Icc7968777f86ab07561b0a861b7d22ec714d1c34
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67765
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
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According to Nvidia, the GC6 flag (DFEN) should not get cleared after
a successful GC6 entry; the kernel driver will not re-inform ACPI
that the exit should be GC6 exit as well.
BUG=b:243888246
BRANCH=brya
TEST=tested by Nvidia
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I220795928d03f269de48278ea0ab57de7253fad5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67745
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Linux always "turns on" a PowerResource when it boots, regardless of
_STA, so the _ON routine should be idempotent. In this case, it all is,
except for the LTR restore, which would restore a value of 0 when _ON is
run the first time, which means that LTR is disabled on the root port
from then on, as the save/restore routines will keep saving/restoring
that 0. THis patch fixes the problem by moving the power checks from
PGON/PGOF to GCOO/GCOI.
BUG=b:244409563
TEST=boot agah and verify that LTR is still enabled on the root port
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I4ed78323608eede5b8310598f1f1115497ab2b5b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67278
Reviewed-by: Cliff Huang <cliff.huang@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
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The Linux kernel runtime D3 framework expects a PCIe device to have a
power resource in order to be properly power-manageable. The _PR0/_PR3
values were pointing at the PEG0 Device, which is not a PowerResource,
so this must have confused the RTD3 framework and RTD3 was not
functional. Removing the _PR0/_PR3 fixes the problem.
BUG=b:243888246
TEST=echo auto > /sys/bus/pci/devices/0000:01:00.0/power/control;
sleep 10;
echo on > /sys/bus/pci/devices/0000:01:00.0/power/control
After this there are no longer errors seen in dmesg about failing
to place the device into D0.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I83fa1e5fabd3257b097c10e7a13c9861872685ea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67212
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Cliff Huang <cliff.huang@intel.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Mostly there are too many extraneous `\_SB.PCI0.` prefixes, also a few
minor cleanups, but nothing functional.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I79d919d2f04f57232f8f6a4e4d0690833faeb834
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66810
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
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Similar to the prior CL (commit db8ad5e), do the same register dance
before/after GCOFF.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I8fecba40c5a5af11e24f82db07face3ce10481bf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67086
Reviewed-by: Anil Kumar K <anil.kumar.k@intel.corp-partner.google.com>
Reviewed-by: Cliff Huang <cliff.huang@intel.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Nvidia recommends saving and restoring the LTR Enable bit in PCIe config
space for the PCIe root port before/after GC6 entry. Also the detectable
error bit should be cleared, as there may be errors expected during the
GC6 flow.
BUG=b:214581763
TEST=no more correctable errors after GC6 entry/exit
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I058ce1b3f17fb6cc59785a85efaf9ea0504cf2ee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66808
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anil Kumar K <anil.kumar.k@intel.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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This patch adds support for turning the PCIe SRCCLK# on and off during
RTD3 (just like the soc/intel/common/block/pcie/rtd3 driver).
TEST=GC6 and GCOFF sequences still work
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I4b369cfcc7245a1c212fa65f65fdab542f60e196
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66807
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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For board revs 3 and later, the PG pin for the NVVDD VR moved from
GPP_E16 to GPP_E3. To accommodate this, the DSDT contains a Name that
this code will write the correct GPIO # to depending on the board rev,
and we'll use that instead.
BUG=b:239721380
TEST=still works on board rev 2
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I11aec6069da8e086789419303871c6d0f5fb29af
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66806
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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By moving the large wait for FBVDD discharge from PGOF
to PGON, the whole time may be avoided if enough time has
elapsed between the successive calls.
BUG=b:239719056
TEST=With Nvidia test software, verify ACPI prints
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I891aa14f120d58c45b8965038a9d2f2a417b3f3d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66642
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Cliff Huang <cliff.huang@intel.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Now that the virtual wire situation is figured out, the GC6 sequence
is updated to match the latest HW design guide from Nvidia. This
allows Nvidia test software to (mostly) successfully execute the GC6
test, but with some PCIe AER errors.
BUG=b:214581763
TEST=tested with Nvidia test software
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ia094c4fa9b4db094a59b9b6f02be1a649ee8569b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66641
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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PERST# is supposed to be de-asserted in GC6 exit, but the original
patch used the CTXS Method, which drives a GPIO low, instead of
STXS, because PERST# is active-low. This patch fixes that.
BUG=b:214581763
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ib0adb8efe5e2cc733ae2228614c58c124ba3f11b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66402
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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The POWERCONTROL and PLATPOLICY NVJT subfunctions were incorrectly set
to 2 and 3, respectively. While looking at the ACPI code, Nvidia noticed
these are supposed to be 3 and 4, also respectively, so this patch fixes
that.
BUG=b:214581763
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I0f808aba7072b943ee2fad20e06ff39a9b54903d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66374
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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When the dGPU is entering GCOFF, the link should first be placed into
L2/L3 as appropriate for the design, then when exiting, the link should
be placed back into L0. This patch fixes that oversight.
BUG=b:239719056
TEST=build
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ia3bdfe5641216675e06ebe82ffe58bf8c049b26b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66200
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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After staring at lots of scope shots, the EE has determined that a few
modifications to the GCOFF sequence can be made:
- Remove delay between PERST# assertion and GPU_ALLRAILS_PG deassertion
- Remove delay after ramping down FBVDD
This patch implements these minor changes.
BUG=b:240199017
TEST=verified by EE
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I7d492b3e65a231bc5f64fe9c3add60b5e72eb072
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66199
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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The full dGPU power-on sequence, when executed from ACPI, is taking
roughly 15ms or so, which puts it close to the maximum of 20ms required
from the Nvidia spec. Changing the polling period to 100 us instead of 1
ms drastically reduces the time required for this sequence, now taking
typically 7 ms or so. This gives a lot more margin during the power on
sequence.
BUG=b:238466724
TEST=Sequence verified by EE on a scope
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I3ba676c5fac983a0c1ad1d60c3863d06ed33fa27
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66020
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The agah EC code includes a driver to keep track of the current D Notify
level that the GPU should be at. When it changes, it will send a host
event to the ACPI FW, which will then pass that Notify on to the kernel
driver. This patch adds support for that feature, which is described in
the Nvidia Software Design Guide.
BUG=b:229405562
TEST=add Printf() calls to the ACPI, and work through the various
scenarios on the EC that will cause D Notify levels to change; this
will cause the Printfs() to show up in the kernel log.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I5cd8bd7d177ea10a165613ed0726a6d6fd86c226
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65486
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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GPIO_GPU_NVVDD_EN is incorrectly (duplicately) assigned to GPP_A19 in
power.asl, but a double check of the schematic shows that the actual pad
is GPP_A17, so this patch fixes that.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I4432b50c737508b7e0d595423d614a723d2499c4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65580
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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I misread my notes when writing the code for the GC6I/GC6O Methods, and
accidentally included NV_33 in the GC6 sequence, which is incorrect
(confirmed in the Hardware Design Guide). This patch removes the code
that brings NV_33 up and down during the GC6 sequences.
BUG=b:236676400
TEST=build
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Iaa6c5ef3d7b1edbe13257f99013ab0e4382bdbf5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65565
Reviewed-by: Robert Zieba <robertzieba@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The _ON and _OFF methods for the root port's power resource were
calling the _ON and _OFF in the PEGP namespace, which was the
incorrect method, it should have been NPON/NPOF, so this patch
updates that.
BUG=b:236676400
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ia3653996329473f133e3f0d53306882dc3213b6b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65487
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The preferred way of polling in ACPI I've seen is usually to just
divide the sleep into N chunks, and ignore the time taken in between.
This works in practice (validated with Timer calls before and after).
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I4a2cd82cea05c539eff30b9b9d6ef18550d17686
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The NBCI "get callbacks" _DSM subfunction should utilize the same "get
callbacks" subfunction from the GPS _DSM subfunction; this patch adds
that Method call into the ACPI code.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Idf2f148b5a95acccb02f47cba1ef33a9fc16bcd9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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To avoid extraneous calls from the kernel to _ON or _OFF, keep track
of the power state of the GPU in an integer and exit _ON and _OFF
routines early when attempting to enter the current state.
BUG=b:236676400
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ie874fcdc7022c4fde6f557d1ee06e8392ae3d850
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65482
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The EEs have observed the ramp down delay on this signal in more detail
and 40 ms can still meet the sequencing requirements.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I49ef801f7a3fd7945ded63da1399eaf57fd6aef0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65581
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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We have clarified the powerdown sequence with Nvidia, and the EEs have
come up with this modified sequence which still meets the requirements
from the hardware design guide.
BUG=b:233959099
TEST=Verified by ODM and EE
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I37715165ab488f994c825fb9ff532ebf8d7f4cb0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65182
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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The _DSM subfunction for the Nvidia GN20 supports 1 additional
subfunction, known as GPS, which is required to support GPU Boost. This
implementation is minimal, essentially letting the GPU manage its own
temperature.
BUG=b:214581372
TEST=abuild
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I21331bd811a13212f3825bda44be44d1b5ae7c74
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64995
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Now that the power sequencing for the GPU is in a better shape, ensure
that the ACPI code that performs power sequencing matches the C code
that does the same.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I797ee99f22a7a6aaacfe54862595674d4ada06ee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64994
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The Nvidia GPU kernel driver supports another _DSM subfunction which
is known as NVPCF (Nvidia Platform and Control Framework). The
subfunction informs the kernel driver about Dynamic Boost parameters,
which is done at init time, but can also be changed dynamically.
BUG=b:214581372
TEST=build
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I7887bfc2e8e1cae606e12502a9eda3a7954c8d7a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64535
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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The Nvidia GPU supports another function named NBCI (NoteBook Common
Interface), which has some subfunctions which are required for the
Nvidia kernel driver to consume. The specification for this function
comes from the Nvidia GN20 Software Design Guide.
BUG=b:214581763
TEST=build
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I19eb9417923d297a084d6f5329682e91cd506a9e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64008
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Some brya variants will use a GN20 series Nvidia GPU, which requires
quite a bit of ACPI support code to be written for it. This patch
lands a decent bit of the initial code for it on the brya platform,
including:
1) PEG RTD3 methods
2) DGPU power operations (RTD3 and GCOFF, NVJT _DSM and other Methods)
3) NVOP _DSM method
There will be more support to come later, this is all written to
specifications from the Nvidia Software Design Guide for GN20.
BUG=b:214581763
TEST=build patch train
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ifce1610210e9636e87dda4b55c8287334adfcc42
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62931
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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