Statically allocate 'gpt_bitlock' array of fine-grained
'bitlock_t' data structures in arm_bl31_setup.c.
The amount of memory needed for this array is controlled
by 'RME_GPT_BITLOCK_BLOCK' build option and 'PLAT_ARM_PPS'
macro defined in platform_def.h which specifies the size
of protected physical address space in bytes.
'PLAT_ARM_PPS' takes values from 4GB to 4PB supported by
Arm architecture.
Change-Id: Icf620b5039e45df6828d58fca089cad83b0bc669
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
This patch adds support in GPT library for configuration
of the memory block size protected by one bit of 'bitlock'
structure. Build option 'RME_GPT_BITLOCK_BLOCK' defines the
number of 512MB blocks covered by each bit. This numeric
parameter must be a power of 2 and can take the values from
0 to 512. Setting this value to 0 chooses a single spinlock
for all GPT L1 table entries. The default value is set to 1
which corresponds to 512MB per bit.
Change-Id: I710d178072894a3ef40daebea701f74d19e8a3d7
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_MAX_BLOCK
build parameter and takes values 0, 2, 32 and 512 and
by default set to 2 in make_helpers/defaults.mk.
Setting RME_GPT_MAX_BLOCK value to 0 disables use of
Contiguous descriptors.
Function gpt_tlbi_by_pa_ll() and its declaration
are removed from lib/aarch64/misc_helpers.S and
include/arch/aarch64/arch_helpers.h, because the
GPT library now uses tlbirpalos_xxx() functions.
Change-Id: Ia9a59bde1741c5666b4ca1de9324e6dfd6f734eb
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
This patch updates and refactors the GPT library and fixes bugs.
- Support all combinations of PGS, PPS, and L0GPTSZ parameters.
- PPS and PGS are set at runtime, L0GPTSZ is read from GPCCR_EL3.
- Use compiler definitions to simplify code.
- Renaming functions to better suit intended uses.
- MMU enabled before GPT APIs called.
- Add comments to make function usage more clear in GPT library.
- Added _rme suffix to file names to differentiate better from the
GPT file system code.
- Renamed gpt_defs.h to gpt_rme_private.h to better separate private
and public code.
- Renamed gpt_core.c to gpt_rme.c to better conform to TF-A precedent.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I4cbb23b0f81e697baa9fb23ba458aa3f7d1ed919
