Commit Graph
6 Commits
Author SHA1 Message Date
Yong-Xuan WangandAnup Patel 61083eb504 lib: sbi_list: add a helper for safe list iteration
Some use cases require iterating safe against removal of list entry.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250618025416.5331-1-yongxuan.wang@sifive.com
Signed-off-by: Anup Patel <anup@brainfault.org>
2025-07-20 20:45:59 +05:30
Yong-Xuan WangandAnup Patel 53844c98d0 lib: sbi: Add support for Svade and Svadu extensions
Add support for Svade and Svadu extensions. When both are present in the
device tree, the M-mode firmware should select the Svade extension
to comply with the RVA23 profile, which mandates Svade and lists Svadu as
an optional extension.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2024-06-18 16:41:32 +05:30
Yong-Xuan WangandAnup Patel 3daac8fb87 lib: sbi: Detect extensions from the ISA string in DT
Enable access to some extensions through menvcfg and show them in "Boot
HART ISA Extensions" if they are present in the device tree.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2023-12-19 15:39:17 +05:30
Yong-Xuan WangandAnup Patel 776770d2ad lib: sbi: Using one array to define the name of extensions
Define an array sbi_hart_ext to map extension ID and name , and use it
for ISA parsing and printing out the supported extensions.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2023-12-19 14:14:22 +05:30
Yong-Xuan WangandAnup Patel 056fe6f85d lib: sbi: Refactor the code for enable extensions in menvfg CSR
Use 1 variable to store the value of menvcfg.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2023-12-19 13:54:33 +05:30
Yong-Xuan WangandAnup Patel 2c8be566f3 lib: sbi: Improve the code of privilege mode and extensions detection
We can enhance the code by creating 2 unified interface with macro  for
privilege mode and extensions detection, which relies on supported
privilege modes and CSRs.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2023-12-19 13:46:02 +05:30