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spl: Create proper symbols for enabling the malloc() pool

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For U-Boot proper we have CONFIG_SYS_MALLOC_F which indicates that a
malloc() pool is available before relocation.

For SPL we only have CONFIG_SPL_SYS_MALLOC_F_LEN which indicates the
size of the pool.

In various places we use CONFIG_SPL_SYS_MALLOC_F_LEN == 0 to indicate
that there is no pool.

This differing approach is confusing. Add a new CONFIG_SPL_SYS_MALLOC_F
symbol for SPL (and similarly for TPL and VPL). Tidy up the Kconfig
help for clarity.

For now these symbols are not used. That is cleaned up in the following
patches.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-09-26 08:14:24 -06:00 committed by Tom Rini
parent 77b9b187e9
commit fd8497dae5
1 changed files with 39 additions and 12 deletions
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51
Kconfig
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@ -295,6 +295,16 @@ config SYS_MALLOC_LEN
This defines memory to be allocated for Dynamic allocation
TODO: Use for other architectures
config SPL_SYS_MALLOC_F
bool "Enable malloc() pool in SPL"
depends on SPL_FRAMEWORK && SYS_MALLOC_F && SPL
default y
help
In SPL memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
config SPL_SYS_MALLOC_F_LEN
hex "Size of malloc() pool in SPL"
depends on SYS_MALLOC_F && SPL
@ -303,23 +313,31 @@ config SPL_SYS_MALLOC_F_LEN
default 0x2000 if IMX8MQ
default SYS_MALLOC_F_LEN
help
In SPL memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
Sets the size of the malloc() pool in SPL. This is used for
driver model and other features, which must allocate memory for
data structures.
It is possible to enable CFG_SPL_SYS_MALLOC_START to start a new
malloc() region in SDRAM once it is inited.
config TPL_SYS_MALLOC_F
bool "Enable malloc() pool in SPL"
depends on SYS_MALLOC_F && TPL
default y if SPL_SYS_MALLOC_F
help
In TPL memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
config TPL_SYS_MALLOC_F_LEN
hex "Size of malloc() pool in TPL"
depends on SYS_MALLOC_F && TPL
default SPL_SYS_MALLOC_F_LEN
help
In TPL memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
Sets the size of the malloc() pool in TPL. This is used for
driver model and other features, which must allocate memory for
data structures.
config VALGRIND
bool "Inform valgrind about memory allocations"
@ -336,15 +354,24 @@ config VALGRIND
it can be handled accurately by Valgrind. If you aren't planning on
using valgrind to debug U-Boot, say 'n'.
config VPL_SYS_MALLOC_F
bool "Enable malloc() pool in VPL"
depends on SYS_MALLOC_F && VPL
default y if SPL_SYS_MALLOC_F
help
In VPL memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
config VPL_SYS_MALLOC_F_LEN
hex "Size of malloc() pool in VPL before relocation"
depends on SYS_MALLOC_F && VPL
default SYS_MALLOC_F_LEN
help
Before relocation, memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
Sets the size of the malloc() pool in VPL. This is used for
driver model and other features, which must allocate memory for
data structures.
menuconfig EXPERT
bool "Configure standard U-Boot features (expert users)"