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| author |   Laura Abbott <labbott@redhat.com> | 2017-04-18 11:27:10 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-18 20:43:14 +0200 |
| commit | 2f87f50b234038ff91f67b4a98f2289ff630563a (patch) | |
| tree | 82d312ca71d3b6a7bd0dc5e2864e64547f3a455b /drivers/staging/android/ion/Kconfig | |
| parent | staging: android: ion: Collapse internal header files (diff) | |
| download | linux-dev-2f87f50b234038ff91f67b4a98f2289ff630563a.tar.xz linux-dev-2f87f50b234038ff91f67b4a98f2289ff630563a.zip | |
staging: android: ion: Rework heap registration/enumeration
The current model of Ion heap registration is based on the outdated
model of board files. The replacement for board files (devicetree)
isn't a good replacement for what Ion wants to do. In actuality, Ion
wants to show what memory is available in the system for something else
to figure out what to use. Switch to a model where Ion creates its
device unconditionally and heaps are registed as available regions.
Currently, only system and CMA heaps are converted over to the new
model. Carveout and chunk heaps can be converted over when someone wants
to figure out how.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/android/ion/Kconfig')
| -rw-r--r-- | drivers/staging/android/ion/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig index 15108c40c81f..a517b2d29f1b 100644 --- a/drivers/staging/android/ion/Kconfig +++ b/drivers/staging/android/ion/Kconfig @@ -10,6 +10,31 @@ menuconfig ION If you're not using Android its probably safe to say N here. +config ION_SYSTEM_HEAP + bool "Ion system heap" + depends on ION + help + Choose this option to enable the Ion system heap. The system heap + is backed by pages from the buddy allocator. If in doubt, say Y. + +config ION_CARVEOUT_HEAP + bool "Ion carveout heap support" + depends on ION + help + Choose this option to enable carveout heaps with Ion. Carveout heaps + are backed by memory reserved from the system. Allocation times are + typically faster at the cost of memory not being used. Unless you + know your system has these regions, you should say N here. + +config ION_CHUNK_HEAP + bool "Ion chunk heap support" + depends on ION + help + Choose this option to enable chunk heaps with Ion. This heap is + similar in function the carveout heap but memory is broken down + into smaller chunk sizes, typically corresponding to a TLB size. + Unless you know your system has these regions, you should say N here. + config ION_CMA_HEAP bool "Ion CMA heap support" depends on ION && CMA |