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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2016-12-13 15:28:54 +0000 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2016-12-13 15:35:15 +0000 |
| commit | 0029624fe2d4c327ac885d04d5933f82f38e7071 (patch) | |
| tree | 42c161da85550023bd5c12ed296ef512c8609927 /include/lib/aarch64/arch_helpers.h | |
| parent | d3d6c6e3e9860024cda8766dbcf62f8022a68002 (diff) | |
Add PLAT_xxx_ADDR_SPACE_SIZE definitions
Added the definitions `PLAT_PHY_ADDR_SPACE_SIZE` and
`PLAT_VIRT_ADDR_SPACE_SIZE` which specify respectively the physical
and virtual address space size a platform can use.
`ADDR_SPACE_SIZE` is now deprecated. To maintain compatibility, if any
of the previous defines aren't present, the value of `ADDR_SPACE_SIZE`
will be used instead.
For AArch64, register ID_AA64MMFR0_EL1 is checked to calculate the
max PA supported by the hardware and to verify that the previously
mentioned definition is valid. For AArch32, a 40 bit physical
address space is considered.
Added asserts to check for overflows.
Porting guide updated.
Change-Id: Ie8ce1da5967993f0c94dbd4eb9841fc03d5ef8d6
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'include/lib/aarch64/arch_helpers.h')
| -rw-r--r-- | include/lib/aarch64/arch_helpers.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h index a013809b..aa262031 100644 --- a/include/lib/aarch64/arch_helpers.h +++ b/include/lib/aarch64/arch_helpers.h @@ -196,6 +196,7 @@ void __dead2 smc(uint64_t x0, uint64_t x1, uint64_t x2, uint64_t x3, ******************************************************************************/ DEFINE_SYSREG_READ_FUNC(midr_el1) DEFINE_SYSREG_READ_FUNC(mpidr_el1) +DEFINE_SYSREG_READ_FUNC(id_aa64mmfr0_el1) DEFINE_SYSREG_RW_FUNCS(scr_el3) DEFINE_SYSREG_RW_FUNCS(hcr_el2) |