diff options
| author | Andrey Petrov <andrey.petrov@intel.com> | 2016-06-27 13:39:34 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-08-28 18:38:48 +0200 |
| commit | 3f4aece4e07b15a5a2d191873da04b88c8e87049 (patch) | |
| tree | 95656eb37744843a4e9586c625451b55a5e17251 /src/soc/intel/apollolake/Kconfig | |
| parent | 7f72c9b30ec543fc5d485dca5f15790d2c4b03f3 (diff) | |
soc/intel/apollolake: Add CQOS CAR implementation
Add new option to set up Cache-As-RAM by using CQOS, Cache Quality of
Service. CQOS allows setting ways of cache in no-fill mode, while keeping
other ways in regular evicting mode. This effectively allows using CAR
and cache simultaneously.
BUG=chrome-os-partner:51959
TEST=switch from NEM to CQOS and back, boot
Change-Id: Ic7f9899918f94a5788b02a4fbd2f5d5ba9aaf91d
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/15455
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/apollolake/Kconfig')
| -rw-r--r-- | src/soc/intel/apollolake/Kconfig | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig index d8e33caf7b..9fa37a1ff3 100644 --- a/src/soc/intel/apollolake/Kconfig +++ b/src/soc/intel/apollolake/Kconfig @@ -227,6 +227,27 @@ config NHLT_DA7219 default n help Include DSP firmware settings for headset codec. +choice + prompt "Cache-as-ram implementation" + default CAR_CQOS + help + This option allows you to select how cache-as-ram (CAR) is set up. + +config CAR_NEM + bool "Non-evict mode" + help + Traditionally, CAR is set up by using Non-Evict mode. This method + does not allow CAR and cache to co-exist, because cache fills are + block in NEM mode. + +config CAR_CQOS + bool "Cache Quality of Service" + help + Cache Quality of Service allows more fine-grained control of cache + usage. As result, it is possible to set up portion of L2 cache for + CAR and use remainder for actual caching. + +endchoice config SPI_FLASH_INCLUDE_ALL_DRIVERS bool |