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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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