diff options
Diffstat (limited to 'drivers/firmware/qcom/Kconfig')
| -rw-r--r-- | drivers/firmware/qcom/Kconfig | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/drivers/firmware/qcom/Kconfig b/drivers/firmware/qcom/Kconfig index 3f05d9854ddf..b477d54b495a 100644 --- a/drivers/firmware/qcom/Kconfig +++ b/drivers/firmware/qcom/Kconfig @@ -7,18 +7,39 @@ menu "Qualcomm firmware drivers" config QCOM_SCM + select QCOM_TZMEM tristate -config QCOM_SCM_DOWNLOAD_MODE_DEFAULT - bool "Qualcomm download mode enabled by default" - depends on QCOM_SCM +config QCOM_TZMEM + tristate + select GENERIC_ALLOCATOR + +choice + prompt "TrustZone interface memory allocator mode" + depends on QCOM_TZMEM + default QCOM_TZMEM_MODE_GENERIC + help + Selects the mode of the memory allocator providing memory buffers of + suitable format for sharing with the TrustZone. If in doubt, select + 'Generic'. + +config QCOM_TZMEM_MODE_GENERIC + bool "Generic" help - A device with "download mode" enabled will upon an unexpected - warm-restart enter a special debug mode that allows the user to - "download" memory content over USB for offline postmortem analysis. - The feature can be enabled/disabled on the kernel command line. + Use the generic allocator mode. The memory is page-aligned, non-cachable + and physically contiguous. + +config QCOM_TZMEM_MODE_SHMBRIDGE + bool "SHM Bridge" + help + Use Qualcomm Shared Memory Bridge. The memory has the same alignment as + in the 'Generic' allocator but is also explicitly marked as an SHM Bridge + buffer. + + With this selected, all buffers passed to the TrustZone must be allocated + using the TZMem allocator or else the TrustZone will refuse to use them. - Say Y here to enable "download mode" by default. +endchoice config QCOM_QSEECOM bool "Qualcomm QSEECOM interface driver" |