arm-trusted-firmware/lib/gpt_rme/gpt_rme.mk

#
# Copyright (c) 2021-2024, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#

# Process RME_GPT_BITLOCK_BLOCK value
ifeq ($(filter 0 1 2 4 8 16 32 64 128 256 512, ${RME_GPT_BITLOCK_BLOCK}),)
    $(error "Invalid value for RME_GPT_BITLOCK_BLOCK: ${RME_GPT_BITLOCK_BLOCK}")
endif

ifeq (${RME_GPT_BITLOCK_BLOCK},0)
    $(warning "GPT library uses global spinlock")
endif

# Process RME_GPT_MAX_BLOCK value
ifeq ($(filter 0 2 32 512, ${RME_GPT_MAX_BLOCK}),)
    $(error "Invalid value for RME_GPT_MAX_BLOCK: ${RME_GPT_MAX_BLOCK}")
endif

GPT_LIB_SRCS	:=	$(addprefix lib/gpt_rme/,        \
			gpt_rme.c)
feat(rme): add GPT Library This patch introduces the Granule Protection Table (GPT) library code. This implementation will be updated later to be more flexible, as the current implementation is very rigid. Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com> Change-Id: I3af824a28c6e9a5d36459c0c51d2d9bebfba1505 3 years ago			`#`
feat(gpt): add support for large GPT mappings 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> 8 months ago			`# Copyright (c) 2021-2024, Arm Limited. All rights reserved.`
feat(rme): add GPT Library This patch introduces the Granule Protection Table (GPT) library code. This implementation will be updated later to be more flexible, as the current implementation is very rigid. Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com> Change-Id: I3af824a28c6e9a5d36459c0c51d2d9bebfba1505 3 years ago			`#`
			`# SPDX-License-Identifier: BSD-3-Clause`
			`#`

feat(gpt): configure memory size protected by bitlock 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> 6 months ago			`# Process RME_GPT_BITLOCK_BLOCK value`
			`ifeq ($(filter 0 1 2 4 8 16 32 64 128 256 512, ${RME_GPT_BITLOCK_BLOCK}),)`
			`$(error "Invalid value for RME_GPT_BITLOCK_BLOCK: ${RME_GPT_BITLOCK_BLOCK}")`
			`endif`

			`ifeq (${RME_GPT_BITLOCK_BLOCK},0)`
			`$(warning "GPT library uses global spinlock")`
			`endif`

feat(gpt): add support for large GPT mappings 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> 8 months ago			`# Process RME_GPT_MAX_BLOCK value`
			`ifeq ($(filter 0 2 32 512, ${RME_GPT_MAX_BLOCK}),)`
			`$(error "Invalid value for RME_GPT_MAX_BLOCK: ${RME_GPT_MAX_BLOCK}")`
			`endif`

refactor(gpt): productize and refactor GPT library 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 3 years ago			`GPT_LIB_SRCS := $(addprefix lib/gpt_rme/, \`
			`gpt_rme.c)`