u-boot/drivers/smem/Kconfig
Tom Rini 217cf656e2 dm: core: Default to using DEVRES outside of xPL
The devm alloc functions that we have may follow the Linux kernel model
where allocations are (almost always) automatically free()'d. However,
quite often we don't enable, in full U-Boot, the tracking and free()'ing
functionality. This in turn leads to memory leaks because the driver
author expects that since the functions have the same name as in the
Linux Kernel they have the same behavior. In turn we then get
functionally correct commits such as commit 00e1fed93c8c ("firmware:
ti_sci: Fix memory leaks in devm_ti_sci_get_of_resource") that manually
add these calls. Rather than manually tracking allocations and
implementing free()s, rework things so that we follow expectations by
enabling the DEVRES functionality (outside of xPL phases).

This turns DEVRES from a prompted symbol to a symbol that must be
select'd, and we now remove our non-managed alloc/free functions from
outside of xPL builds.

Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2026-01-09 09:08:14 -06:00

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menuconfig SMEM
bool "SMEM (Shared Memory mamanger) support"
if SMEM
config SANDBOX_SMEM
bool "Sandbox Shared Memory Manager (SMEM)"
depends on SANDBOX && DM
help
enable SMEM support for sandbox. This is an emulation of a real SMEM
manager.
The sandbox driver allocates a shared memory from the heap and
initialzies it on start.
config MSM_SMEM
bool "Qualcomm Shared Memory Manager (SMEM)"
depends on DM
depends on ARCH_SNAPDRAGON || ARCH_IPQ40XX
select DEVRES
help
Enable support for the Qualcomm Shared Memory Manager.
The driver provides an interface to items in a heap shared among all
processors in a Qualcomm platform.
endif # menu "SMEM Support"