opensbi.git/include/sbi, branch v0.4

include: Bump-up version to 0.4

2019-07-02T05:41:08Z

This patch updates OpenSBI version to 0.4 as part of release preparation. Signed-off-by: Anup Patel

include: Add firmware context to sbi_platform

2019-06-29T15:29:45Z

Add firmware context field struct sbi_platform to carry firmware specific information. Signed-off-by: Abner Chang Acked-by: Anup Patel

include: Add version info to struct sbi_platform

2019-06-29T13:56:26Z

Add version control of sbi_platform structure - Add opensbi_version, this gives information of opensbi revision on which the sbi_platform table was created. - Add platform_version field in sbi_platform structure for platform level version control. Signed-off-by: Abner Chang Acked-by: Anup Patel

include: Move callbacks in sbi_platform to separate struct

2019-06-29T12:50:00Z

Move platform opensbi functions to sbi_platform_operations structure. Both sbi_platform and sbi_platform_operations structures are maintained by platform vendors. Signed-off-by: Abner Chang Acked-by: Anup Patel

lib: Rename string.x to sbi_string.x

2019-06-19T04:18:59Z

All string functions are part of libsbi. It makes more sense to rename them to sbi_string.x as the libsbi can be linked with external libraries that can have similar implementation. Signed-off-by: Atish Patra Acked-by: Anup Patel

lib: Include helper libc functions directly in libsbi.

2019-06-19T04:18:54Z

libsbi needs some of the custom libc functions. It should be directly included in libsbi instead of platform specific libraries. Signed-off-by: Atish Patra Acked-by: Anup Patel

lib: Handle page/access fault caused by unpriv load/store

2019-05-24T02:52:47Z

The unpriv load/store instruction from M-mode can cause page/access fault to M-mode if S-mode page table did not have mappings OR it did not have PMP access permission. To tackle this, we redirect trap back to S-mode if unpriv load/store instruction traps in M-mode. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: Add per-HART trap info pointer

2019-05-24T02:52:47Z

This patch adds per-HART trap info pointer which can be used to communicate trap information to sbi_trap_handler(). Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: Make unprivilege load/store functions as non-inline functions

2019-05-24T02:52:47Z

Currently, the unprivilege load/store functions are inline functions. We will be extending these functions to track whether a page/access fault occurs when we execute unprivilege load/store instruction. To make things simpler and debugable, we reduce number of places which can potentially generate a page/access fault by making all unprivilege load/store functions as regular (non-inline) functions. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: Factor-out TLB management from IPI management

2019-05-24T02:52:47Z

This patch factor-out TLB management from IPI management to separate sources sbi_tlb.c and sbi_tlb.h. Signed-off-by: Anup Patel Reviewed-by: Atish Patra