opensbi.git/lib/sbi/sbi_init.c, branch v0.8

lib: sbi_hart: Detect number of supported PMP regions

2020-05-19T03:49:48Z

It is not mandatory for a RISC-V systems to implement all PMP regions so we have to check all PMPADDRx CSRs to determine excat number of supported PMP regions. Signed-off-by: Anup Patel

include: sbi: Use scratch pointer as parmeter in HART feature APIs

2020-05-19T03:49:42Z

It makes more sense to have scratch pointer as parameter in HART feature APIs because: 1. We already have scratch pointer at places where these APIs are used. 2. This is consistent with lot of other APIs in sbi_hart.h Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Print platform HART count just before boot HART id

2020-05-19T03:49:39Z

On platforms with continuous HART ids starting from zero: 0 <= boot HART id < platform HART count The above co-relation of boot HART id and platform HART count is true for most RISC-V platfors so it's better to print platform HART count just before boot HART id. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Remove extra spaces from boot time prints

2020-05-19T03:49:37Z

We remove extra spaces from boot time prints. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Improve get_feature_str() implementation and usage

2020-05-19T03:49:34Z

We do following improvements for get_feature_str(): 1. We should return "none" from get_feature_str() no features available instead of sbi_boot_prints() explicitly handling failure. 2. We don't need to return failure (just like misa_xlen()) because we are returning "none" for no features and we are truncating output when space is not available. 3. Based on 1 and 2, the sbi_boot_prints() can be further simplified. 4. No need for two char[] in sbi_boot_prints() Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: Add hart features in boot time print

2020-05-10T05:00:47Z

We have now clear distinction between platform and hart features. Modify the boot print messages to print hart specific features in a string format. Signed-off-by: Atish Patra Tested-by: Jonathan Balkind Reviewed-by: Anup Patel

lib: Add platform features in boot time print

2020-05-10T04:54:08Z

We have now clear distinction between platform and hart features. Modify the boot print messages to print platform features in a string format. In the process, this patch moved relatively larger functions to its own file from platform.h header file. Signed-off-by: Atish Patra Tested-by: Jonathan Balkind Reviewed-by: Anup Patel

lib: sbi: Improve misa_string() implementation

2020-05-07T03:38:26Z

The RISC-V ISA string does not follow alphabetical order. Instead, we have a RISC-V specific ordering of extensions in the RISC-V ISA string. This patch improves misa_string() implementation to return a valid RISC-V ISA string. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Print platform hart count at boot time

2020-05-01T05:03:08Z

Now that we have generic platform which detects hart count from DTB, we should print platform hart count at boot time. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi_system: Remove scratch parameter and redundant functions

2020-03-28T08:02:52Z

This patch removes scratch parameter and redundant functions from sbi_system. Signed-off-by: Anup Patel Reviewed-by: Atish Patra