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| author | Anup Patel <anup.patel@wdc.com> | 2020-11-20 14:12:15 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-12-04 15:31:00 +0300 |
| commit | 9b65dcaedd737b36c21cd9ff585585c188a92b41 (patch) | |
| tree | e3a0f3e8bc45b447b9b4208626d2a17d30f9354c | |
| parent | 555e73778add1f1bc85011f98b3210c7103d60a5 (diff) | |
| download | opensbi-9b65dcaedd737b36c21cd9ff585585c188a92b41.tar.xz | |
include: sbi: Add domains_init() platform operation
We introduce domains_init() platform operation which can be used by
platform support to initialize/populate domains in the coldboot path.
The domains_init() is called late in the coldboot sequence from the
sbi_domain_finalize() so sbi_printf() can be used by platform support
to print errors/warnings at time of populating domains.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
| -rw-r--r-- | include/sbi/sbi_platform.h | 16 | ||||
| -rw-r--r-- | lib/sbi/sbi_domain.c | 8 |
2 files changed, 24 insertions, 0 deletions
diff --git a/include/sbi/sbi_platform.h b/include/sbi/sbi_platform.h index ee72323..3681a78 100644 --- a/include/sbi/sbi_platform.h +++ b/include/sbi/sbi_platform.h @@ -91,6 +91,8 @@ struct sbi_platform_operations { */ int (*misa_get_xlen)(void); + /** Initialize (or populate) domains for the platform */ + int (*domains_init)(void); /** Get domain pointer for given HART id */ struct sbi_domain *(*domain_get)(u32 hartid); @@ -452,6 +454,20 @@ static inline int sbi_platform_misa_xlen(const struct sbi_platform *plat) } /** + * Initialize (or populate) domains for the platform + * + * @param plat pointer to struct sbi_platform + * + * @return 0 on success and negative error code on failure + */ +static inline int sbi_platform_domains_init(const struct sbi_platform *plat) +{ + if (plat && sbi_platform_ops(plat)->domains_init) + return sbi_platform_ops(plat)->domains_init(); + return 0; +} + +/** * Get domain pointer for given HART * * @param plat pointer to struct sbi_platform diff --git a/lib/sbi/sbi_domain.c b/lib/sbi/sbi_domain.c index 639e016..1a3651b 100644 --- a/lib/sbi/sbi_domain.c +++ b/lib/sbi/sbi_domain.c @@ -375,6 +375,14 @@ int sbi_domain_finalize(struct sbi_scratch *scratch, u32 cold_hartid) struct sbi_domain *dom, *tdom; const struct sbi_platform *plat = sbi_platform_ptr(scratch); + /* Initialize domains for the platform */ + rc = sbi_platform_domains_init(plat); + if (rc) { + sbi_printf("%s: platform domains_init() failed (error %d)\n", + __func__, rc); + return rc; + } + /* Discover domains */ for (i = 0; i < SBI_HARTMASK_MAX_BITS; i++) { /* Ignore invalid HART */ |