opensbi.git/include/sbi/sbi_scratch.h, branch v1.5

include: sbi: Add trap_context pointer in struct sbi_scratch

2024-03-19T06:01:20Z

To track nested traps, the struct sbi_scratch needs a pointer the current trap context so add trap_context pointer in struct sbi_context. Signed-off-by: Anup Patel Reviewed-by: Samuel Holland Tested-by: Samuel Holland

lib: sbi: Remove sbi_trap_exit() and related code

2024-03-19T06:01:18Z

Over the years, no uses of sbi_trap_exit() have been found so remove it and also remove related code from fw_base.S and sbi_scratch.h. Signed-off-by: Anup Patel Reviewed-by: Samuel Holland Tested-by: Samuel Holland

lib: sbi: Remove sbi_scratch_last_hartid() macro

2023-09-24T06:11:54Z

The sbi_scratch_last_hartid() macro is not of much use on platforms with really sparse hartids so let us replace use of this macro with other approaches. Signed-off-by: Anup Patel

lib: sbi: Introduce HART index in sbi_scratch

2023-09-24T06:09:21Z

We introduce HART index and related helper functions in sbi_scratch where HART index is contiguous and each HART index maps to a physical HART id such that 0 <= HART index and HART index < SBI_HARTMASK_MAX_BITS. The HART index to HART id mapping follows the index2id mapping provided by the platform. If the platform does not provide index2id mapping then identity mapping is assumed. Signed-off-by: Anup Patel

lib: sbi: Print scratch size and usage at boot time

2023-06-05T10:16:22Z

The scratch space being a scarce resource so let us print it's size and usage at boot time. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

platform: Allow platforms to specify heap size

2023-06-05T10:15:33Z

We extend struct sbi_platform and struct sbi_scratch to allow platforms specify the heap size to the OpenSBI firmwares. The OpenSBI firmwares will use this information to determine the location of heap and provide heap base address in per-HART scratch space. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

include: sbi_scratch: Add helper macros to access data type

2023-06-05T10:12:50Z

Reading and writing a data type in scratch space is a very common use-case so let us add related helper macros in sbi_scratch.h. Signed-off-by: Anup Patel

firmware: Add RW section offset in scratch

2023-01-23T04:36:14Z

Add the RW section offset, provided by _fw_rw_offset symbol, to the scratch structure. This will be used to program separate pmp entry for RW section. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel

include: sbi: Fix typo in comment

2022-10-23T04:47:22Z

%s/Priviledge/Privilege Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

include: Use static asserts for SBI_SCRATCH_xxx_OFFSET defines

2022-03-27T04:14:54Z

Add static detection to prevent the modification of struct sbi_scratch from forgetting the modification of SBI_SCRATCH_xxx_OFFSET Signed-off-by: Xiang W Reviewed-by: Anup Patel