diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-09-20 10:09:32 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-10-20 11:18:03 +0530 |
| commit | a126886bfa4bd11a8b1595dab8246476741fc098 (patch) | |
| tree | f73ae5aa7ab97c52f7a0f385e4bdbd92fcbdfb90 | |
| parent | a12d46a5e736b9eb582af9c43c876c6228bb4bda (diff) | |
lib: sbi: Configure PMP late in coldboot and warmboot path
We factor-out PMP configuration from sbi_hart_init() as a separate
sbi_hart_pmp_configure() function and do the PMP configuration very
late in coldboot and warmboot path just before platform_final_init().
Eventually, this enable us to configure PMP totally based on OpenSBI
domain where OpenSBI domains can be parsed from device-tree in any of
the platform operations except platform_final_init().
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
| -rw-r--r-- | include/sbi/sbi_hart.h | 1 | ||||
| -rw-r--r-- | lib/sbi/sbi_hart.c | 4 | ||||
| -rw-r--r-- | lib/sbi/sbi_init.c | 8 |
3 files changed, 11 insertions, 2 deletions
diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index 0ba68f0..9207f4c 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -45,6 +45,7 @@ void sbi_hart_pmp_dump(struct sbi_scratch *scratch); int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, unsigned long daddr, unsigned long mode, unsigned long attr); +int sbi_hart_pmp_configure(struct sbi_scratch *scratch); bool sbi_hart_has_feature(struct sbi_scratch *scratch, unsigned long feature); void sbi_hart_get_features_str(struct sbi_scratch *scratch, char *features_str, int nfstr); diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index edf79b7..7244f1c 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -224,7 +224,7 @@ int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, return SBI_OK; } -static int pmp_init(struct sbi_scratch *scratch, u32 hartid) +int sbi_hart_pmp_configure(struct sbi_scratch *scratch) { u32 pmp_idx = 0; unsigned long fw_start, fw_size_log2; @@ -462,7 +462,7 @@ int sbi_hart_init(struct sbi_scratch *scratch, u32 hartid, bool cold_boot) if (rc) return rc; - return pmp_init(scratch, hartid); + return 0; } void __attribute__((noreturn)) sbi_hart_hang(void) diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index 65d81ba..85a5f13 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -210,6 +210,10 @@ static void __noreturn init_coldboot(struct sbi_scratch *scratch, u32 hartid) if (rc) sbi_hart_hang(); + rc = sbi_hart_pmp_configure(scratch); + if (rc) + sbi_hart_hang(); + rc = sbi_platform_final_init(plat, TRUE); if (rc) sbi_hart_hang(); @@ -266,6 +270,10 @@ static void __noreturn init_warmboot(struct sbi_scratch *scratch, u32 hartid) if (rc) sbi_hart_hang(); + rc = sbi_hart_pmp_configure(scratch); + if (rc) + sbi_hart_hang(); + rc = sbi_platform_final_init(plat, FALSE); if (rc) sbi_hart_hang(); |