diff options
author | Anup Patel <anup.patel@wdc.com> | 2020-01-17 16:02:07 +0300 |
---|---|---|
committer | Anup Patel <anup@brainfault.org> | 2020-01-22 09:43:42 +0300 |
commit | 161b348e7e8ae3f78e8523e67796d277288e3f7c (patch) | |
tree | 7a911bb556fb164864e1929e645d2e7b488aab3d | |
parent | 766850222af4c39a52acf1fb12a97f2a42747d32 (diff) | |
download | opensbi-161b348e7e8ae3f78e8523e67796d277288e3f7c.tar.xz |
lib: Factor-out SBI replacement extensions
This patch factor-out SBI replacement extensions (such as RFENCE,
IPI, and TIME) into its own source for better modularity of SBI
implementation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
-rw-r--r-- | include/sbi/sbi_ecall.h | 3 | ||||
-rw-r--r-- | lib/sbi/objects.mk | 1 | ||||
-rw-r--r-- | lib/sbi/sbi_ecall.c | 133 | ||||
-rw-r--r-- | lib/sbi/sbi_ecall_replace.c | 146 |
4 files changed, 150 insertions, 133 deletions
diff --git a/include/sbi/sbi_ecall.h b/include/sbi/sbi_ecall.h index a7360b3..2357f79 100644 --- a/include/sbi/sbi_ecall.h +++ b/include/sbi/sbi_ecall.h @@ -30,6 +30,9 @@ struct sbi_ecall_extension { }; extern struct sbi_ecall_extension ecall_legacy; +extern struct sbi_ecall_extension ecall_time; +extern struct sbi_ecall_extension ecall_rfence; +extern struct sbi_ecall_extension ecall_ipi; u16 sbi_ecall_version_major(void); diff --git a/lib/sbi/objects.mk b/lib/sbi/objects.mk index 6a610b5..1c343be 100644 --- a/lib/sbi/objects.mk +++ b/lib/sbi/objects.mk @@ -15,6 +15,7 @@ libsbi-objs-y += riscv_locks.o libsbi-objs-y += sbi_console.o libsbi-objs-y += sbi_ecall.o libsbi-objs-y += sbi_ecall_legacy.o +libsbi-objs-y += sbi_ecall_replace.o libsbi-objs-y += sbi_emulate_csr.o libsbi-objs-y += sbi_fifo.o libsbi-objs-y += sbi_hfence.o diff --git a/lib/sbi/sbi_ecall.c b/lib/sbi/sbi_ecall.c index 23a6c82..d817fef 100644 --- a/lib/sbi/sbi_ecall.c +++ b/lib/sbi/sbi_ecall.c @@ -10,12 +10,7 @@ #include <sbi/sbi_ecall.h> #include <sbi/sbi_ecall_interface.h> #include <sbi/sbi_error.h> -#include <sbi/sbi_ipi.h> #include <sbi/sbi_platform.h> -#include <sbi/sbi_timer.h> -#include <sbi/sbi_tlb.h> -#include <sbi/sbi_trap.h> -#include <sbi/sbi_hart.h> #include <sbi/sbi_version.h> #define SBI_ECALL_VERSION_MAJOR 0 @@ -97,134 +92,6 @@ static struct sbi_ecall_extension ecall_base = { .handle = sbi_ecall_base_handler, }; -static int sbi_ecall_time_handler(struct sbi_scratch *scratch, - unsigned long extid, unsigned long funcid, - unsigned long *args, unsigned long *out_val, - struct sbi_trap_info *out_trap) -{ - int ret = 0; - - if (funcid == SBI_EXT_TIME_SET_TIMER) { -#if __riscv_xlen == 32 - sbi_timer_event_start(scratch, - (((u64)args[1] << 32) | (u64)args[0])); -#else - sbi_timer_event_start(scratch, (u64)args[0]); -#endif - } else - ret = SBI_ENOTSUPP; - - return ret; -} - -static struct sbi_ecall_extension ecall_time = { - .extid_start = SBI_EXT_TIME, - .extid_end = SBI_EXT_TIME, - .handle = sbi_ecall_time_handler, -}; - -static int sbi_ecall_ipi_handler(struct sbi_scratch *scratch, - unsigned long extid, unsigned long funcid, - unsigned long *args, unsigned long *out_val, - struct sbi_trap_info *out_trap) -{ - int ret = 0; - - if (funcid == SBI_EXT_IPI_SEND_IPI) - ret = sbi_ipi_send_smode(scratch, args[0], args[1]); - else - ret = SBI_ENOTSUPP; - - return ret; -} - -static struct sbi_ecall_extension ecall_ipi = { - .extid_start = SBI_EXT_IPI, - .extid_end = SBI_EXT_IPI, - .handle = sbi_ecall_ipi_handler, -}; - -static int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, - unsigned long extid, unsigned long funcid, - unsigned long *args, unsigned long *out_val, - struct sbi_trap_info *out_trap) -{ - int ret = 0; - struct sbi_tlb_info tlb_info; - u32 source_hart = sbi_current_hartid(); - - if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA && - funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID) - if (!misa_extension('H')) - return SBI_ENOTSUPP; - - switch (funcid) { - case SBI_EXT_RFENCE_REMOTE_FENCE_I: - tlb_info.start = 0; - tlb_info.size = 0; - tlb_info.type = SBI_ITLB_FLUSH; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.type = SBI_TLB_FLUSH_GVMA; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.asid = (unsigned long)args[4]; - tlb_info.type = SBI_TLB_FLUSH_GVMA_VMID; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.type = SBI_TLB_FLUSH_VVMA; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.asid = (unsigned long)args[4]; - tlb_info.type = SBI_TLB_FLUSH_VVMA_ASID; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.type = SBI_TLB_FLUSH_VMA; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID: - tlb_info.start = (unsigned long)args[2]; - tlb_info.size = (unsigned long)args[3]; - tlb_info.asid = (unsigned long)args[4]; - tlb_info.type = SBI_TLB_FLUSH_VMA_ASID; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); - break; - - default: - ret = SBI_ENOTSUPP; - }; - - return ret; -} - -static struct sbi_ecall_extension ecall_rfence = { - .extid_start = SBI_EXT_RFENCE, - .extid_end = SBI_EXT_RFENCE, - .handle = sbi_ecall_rfence_handler, -}; - static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch, unsigned long extid, unsigned long *out_val) diff --git a/lib/sbi/sbi_ecall_replace.c b/lib/sbi/sbi_ecall_replace.c new file mode 100644 index 0000000..7728d60 --- /dev/null +++ b/lib/sbi/sbi_ecall_replace.c @@ -0,0 +1,146 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel <anup.patel@wdc.com> + * Atish Patra <atish.patra@wdc.com> + */ + +#include <sbi/sbi_ecall.h> +#include <sbi/sbi_ecall_interface.h> +#include <sbi/sbi_error.h> +#include <sbi/sbi_hart.h> +#include <sbi/sbi_ipi.h> +#include <sbi/sbi_timer.h> +#include <sbi/sbi_tlb.h> +#include <sbi/riscv_asm.h> + +static int sbi_ecall_time_handler(struct sbi_scratch *scratch, + unsigned long extid, unsigned long funcid, + unsigned long *args, unsigned long *out_val, + struct sbi_trap_info *out_trap) +{ + int ret = 0; + + if (funcid == SBI_EXT_TIME_SET_TIMER) { +#if __riscv_xlen == 32 + sbi_timer_event_start(scratch, + (((u64)args[1] << 32) | (u64)args[0])); +#else + sbi_timer_event_start(scratch, (u64)args[0]); +#endif + } else + ret = SBI_ENOTSUPP; + + return ret; +} + +struct sbi_ecall_extension ecall_time = { + .extid_start = SBI_EXT_TIME, + .extid_end = SBI_EXT_TIME, + .handle = sbi_ecall_time_handler, +}; + +static int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, + unsigned long extid, unsigned long funcid, + unsigned long *args, unsigned long *out_val, + struct sbi_trap_info *out_trap) +{ + int ret = 0; + struct sbi_tlb_info tlb_info; + u32 source_hart = sbi_current_hartid(); + + if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA && + funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID) + if (!misa_extension('H')) + return SBI_ENOTSUPP; + + switch (funcid) { + case SBI_EXT_RFENCE_REMOTE_FENCE_I: + tlb_info.start = 0; + tlb_info.size = 0; + tlb_info.type = SBI_ITLB_FLUSH; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.type = SBI_TLB_FLUSH_GVMA; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.asid = (unsigned long)args[4]; + tlb_info.type = SBI_TLB_FLUSH_GVMA_VMID; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.type = SBI_TLB_FLUSH_VVMA; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.asid = (unsigned long)args[4]; + tlb_info.type = SBI_TLB_FLUSH_VVMA_ASID; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.type = SBI_TLB_FLUSH_VMA; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID: + tlb_info.start = (unsigned long)args[2]; + tlb_info.size = (unsigned long)args[3]; + tlb_info.asid = (unsigned long)args[4]; + tlb_info.type = SBI_TLB_FLUSH_VMA_ASID; + tlb_info.shart_mask = 1UL << source_hart; + ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info); + break; + + default: + ret = SBI_ENOTSUPP; + }; + + return ret; +} + +struct sbi_ecall_extension ecall_rfence = { + .extid_start = SBI_EXT_RFENCE, + .extid_end = SBI_EXT_RFENCE, + .handle = sbi_ecall_rfence_handler, +}; + +static int sbi_ecall_ipi_handler(struct sbi_scratch *scratch, + unsigned long extid, unsigned long funcid, + unsigned long *args, unsigned long *out_val, + struct sbi_trap_info *out_trap) +{ + int ret = 0; + + if (funcid == SBI_EXT_IPI_SEND_IPI) + ret = sbi_ipi_send_smode(scratch, args[0], args[1]); + else + ret = SBI_ENOTSUPP; + + return ret; +} + +struct sbi_ecall_extension ecall_ipi = { + .extid_start = SBI_EXT_IPI, + .extid_end = SBI_EXT_IPI, + .handle = sbi_ecall_ipi_handler, +}; |