cherry-pick from Chromium, commit 8fbe1e7
On Braswell and Baytrail devices, by userland 'perf top',
observed demanding clocks on __vdso_clock_gettime() since
chromeos_3.18 kernel; besides, evaluated massive calling of
clock_gettime() cost, up to 700 ns in average.
It turns out that Linux kernel of map_vdso() first call of
remap_pfn_range() does not fall into reserve_pfn_range()
due to size parameter, instead it relies on lookup_memtype()
and potentially be failed to be identified as eligible RAM
resource because the function of pat_pagerange_is_ram() actually
walks through root's sibling.
Meanwhile, on current BSW (and BYT) firmware implementation
makes System RAM resources located on child leaf, combining all
of these factors makes the kernel treat the vvar page of vdso
as a uncached-minus one leading slow access in result.
This patch recollects TOLM accessing; as Aaron recalled some
core_msr_script turns off access to TOLM register, he suggests
to store tolm to avoid getting back a zero while setting acpi
nvs space.
Original-Change-Id: Iad4ffa542b22073cb087100a95169e2d2a52efcd
Original-Signed-off-by: Harry Pan <harry.pan@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/368585
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: Idc9765ec5c0920dc98baeb9267a89bec5cadd5a0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.
This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.
Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Move the FSP common code from the src/soc/intel/common directory into
the src/drivers/intel/fsp1_1 directory. Rename the Kconfig values
associated with this common code.
BRANCH=none
BUG=None
TEST=Build and run on kunimitsu
Change-Id: If1ca613b5010424c797e047c2258760ac3724a5a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e8228cb2a12df1cc06646071fafe10e50bf01440
Original-Change-Id: I4ea84ea4e3e96ae0cfdbbaeb1316caee83359293
Original-Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/306350
Original-Commit-Ready: Leroy P Leahy <leroy.p.leahy@intel.com>
Original-Tested-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12156
Tested-by: build bot (Jenkins)
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
FSP has some unique attributes which makes integration
cumbersome:
1. FSP header files do not include the types they need. Like
EDKII development it's expected types are provided by the
build system. Therefore, one needs to include the proper
files to avoid compilation issues.
2. An implementation of FSP for a chipset may use different
versions of the UEFI PI spec implementation. EDKII is a
proxy for all of UEFI specifications. In order to provide
flexibility one needs to binding a set of types and
structures from an UEFI PI implementation.
3. Each chipset FSP 1.1 implementation has a FspUpdVpd.h
file which defines it's own types. Commonality between
FSP chipset implementations are only named typedef
structs. The fields within are not consistent. And
because of FSP's insistence on typedefs it makes it
near impossible to forward declare structs.
The above 3 means one needs to include the correct UEFI
type bindings when working with FSP. The current
implementation had the SoC picking include paths in the
edk2 directory and using a bare <uefi_types.h> include.
Also, with the prior fsp_util.h implementation the SoC's
FSP FspUpdVpd.h header file was required since for providing
all the types at once (Generic FSP 1.1 and SoC types).
The binding has been changed in the following manner:
1. CONFIG_UEFI_2_4_BINDING option added which FSP 1.1
selects. No other bindings are currently available,
but this provides the policy.
2. Based on CONFIG_UEFI_2_4_BINDING the proper include
paths are added to the CPPFLAGS_common.
3. SoC Makefile.inc does not bind UEFI types nor does
it adjust CPPFLAGS_common in any way.
4. Provide a include/fsp directory under fsp1_1 and
expose src/drivers/intel/fsp1_1/include in the
include path. This split can allow a version 2,
for example, FSP to provide its own include files.
Yes, that means there needs to be consistency in
APIs, however that's not this patch.
5. Provide a way for code to differentiate the FSP spec
types (fsp/api.h) from the chipset FSP types
(fsp/soc_binding.h). This allows for code re-use that
doesn't need the chipset types to be defined such as
the FSP relocation code.
BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built and booted on glados.
Signed-off-by: Aaron Durbin <adubin@chromium.org>
Change-Id: I894165942cfe36936e186af5221efa810be8bb29
Reviewed-on: http://review.coreboot.org/11606
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Tested-by: build bot (Jenkins)
FSP 1.1 platforms should be conforming to the spec. In order
to ensure following specification remove the crutch that allows
FSP to no conform.
BUG=chrome-os-partner:41961
BRANCH=None
TEST=Built.
Change-Id: I28b876773a3b6f07223d60a5133129d8f2c75bf6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c3fe08c5af41867782e422f27b0aed1b762ff34a
Original-Change-Id: Ib97027a35cdb914aca1eec0eeb225a55f51a4b4b
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/285187
Original-Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/10993
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add the files to support the Braswell SOC.
BRANCH=none
BUG=None
TEST=Build for a Braswell platform
Change-Id: I968da68733e57647d0a08e4040ff0378b4d59004
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10051
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Follow up for commit b890a12, some contributions brought
back a number of FSF addresses, so get rid of them again.
Change-Id: I0ac0c957738ce512deb0ed82b2219ef90d96d46b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10322
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
