* Anup Patel <anup.patel@wdc.com>
*/
-#include <sbi/sbi_console.h>
#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_system.h>
#include <sbi/sbi_timer.h>
#include <sbi/sbi_tlb.h>
#include <sbi/sbi_trap.h>
-#include <sbi/sbi_unpriv.h>
#include <sbi/sbi_hart.h>
#include <sbi/sbi_version.h>
-#include <sbi/riscv_asm.h>
#define SBI_ECALL_VERSION_MAJOR 0
#define SBI_ECALL_VERSION_MINOR 2
return SBI_ECALL_VERSION_MINOR;
}
-static int sbi_load_hart_mask_unpriv(struct sbi_scratch *scratch, ulong *pmask,
- ulong *hmask, struct sbi_trap_info *uptrap)
-{
- ulong mask = 0;
-
- if (pmask) {
- mask = sbi_load_ulong(pmask, scratch, uptrap);
- if (uptrap->cause)
- return SBI_ETRAP;
- } else {
- mask = sbi_hart_available_mask();
- }
- *hmask = mask;
- return 0;
-}
-
static int sbi_ecall_base_probe(struct sbi_scratch *scratch,
unsigned long extid,
unsigned long *out_val)
.handle = sbi_ecall_rfence_handler,
};
-static int sbi_ecall_0_1_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();
- ulong hmask = 0;
-
- switch (extid) {
- case SBI_EXT_0_1_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
- break;
- case SBI_EXT_0_1_CONSOLE_PUTCHAR:
- sbi_putc(args[0]);
- break;
- case SBI_EXT_0_1_CONSOLE_GETCHAR:
- ret = sbi_getc();
- break;
- case SBI_EXT_0_1_CLEAR_IPI:
- sbi_ipi_clear_smode(scratch);
- break;
- case SBI_EXT_0_1_SEND_IPI:
- ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
- &hmask, out_trap);
- if (ret != SBI_ETRAP)
- ret = sbi_ipi_send_smode(scratch, hmask, 0);
- break;
- case SBI_EXT_0_1_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_load_hart_mask_unpriv(scratch, (ulong *)args[0],
- &hmask, out_trap);
- if (ret != SBI_ETRAP)
- ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
- break;
- case SBI_EXT_0_1_REMOTE_SFENCE_VMA:
- tlb_info.start = (unsigned long)args[1];
- tlb_info.size = (unsigned long)args[2];
- tlb_info.type = SBI_TLB_FLUSH_VMA;
- tlb_info.shart_mask = 1UL << source_hart;
- ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
- &hmask, out_trap);
- if (ret != SBI_ETRAP)
- ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
- break;
- case SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID:
- tlb_info.start = (unsigned long)args[1];
- tlb_info.size = (unsigned long)args[2];
- tlb_info.asid = (unsigned long)args[3];
- tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
- tlb_info.shart_mask = 1UL << source_hart;
- ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
- &hmask, out_trap);
- if (ret != SBI_ETRAP)
- ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
- break;
- case SBI_EXT_0_1_SHUTDOWN:
- sbi_system_shutdown(scratch, 0);
- break;
- default:
- ret = SBI_ENOTSUPP;
- };
-
- return ret;
-}
-
-static struct sbi_ecall_extension ecall_0_1 = {
- .extid_start = SBI_EXT_0_1_SET_TIMER,
- .extid_end = SBI_EXT_0_1_SHUTDOWN,
- .handle = sbi_ecall_0_1_handler,
-};
-
static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch,
unsigned long extid,
unsigned long *out_val)
ret = sbi_ecall_register_extension(&ecall_base);
if (ret)
return ret;
- ret = sbi_ecall_register_extension(&ecall_0_1);
+ ret = sbi_ecall_register_extension(&ecall_legacy);
if (ret)
return ret;
ret = sbi_ecall_register_extension(&ecall_vendor);
--- /dev/null
+/*
+ * 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_console.h>
+#include <sbi/sbi_ecall.h>
+#include <sbi/sbi_ecall_interface.h>
+#include <sbi/sbi_error.h>
+#include <sbi/sbi_ipi.h>
+#include <sbi/sbi_system.h>
+#include <sbi/sbi_timer.h>
+#include <sbi/sbi_tlb.h>
+#include <sbi/sbi_trap.h>
+#include <sbi/sbi_unpriv.h>
+#include <sbi/sbi_hart.h>
+
+static int sbi_load_hart_mask_unpriv(struct sbi_scratch *scratch,
+ ulong *pmask, ulong *hmask,
+ struct sbi_trap_info *uptrap)
+{
+ ulong mask = 0;
+
+ if (pmask) {
+ mask = sbi_load_ulong(pmask, scratch, uptrap);
+ if (uptrap->cause)
+ return SBI_ETRAP;
+ } else {
+ mask = sbi_hart_available_mask();
+ }
+ *hmask = mask;
+ return 0;
+}
+
+static int sbi_ecall_legacy_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();
+ ulong hmask = 0;
+
+ switch (extid) {
+ case SBI_EXT_0_1_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
+ break;
+ case SBI_EXT_0_1_CONSOLE_PUTCHAR:
+ sbi_putc(args[0]);
+ break;
+ case SBI_EXT_0_1_CONSOLE_GETCHAR:
+ ret = sbi_getc();
+ break;
+ case SBI_EXT_0_1_CLEAR_IPI:
+ sbi_ipi_clear_smode(scratch);
+ break;
+ case SBI_EXT_0_1_SEND_IPI:
+ ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
+ &hmask, out_trap);
+ if (ret != SBI_ETRAP)
+ ret = sbi_ipi_send_smode(scratch, hmask, 0);
+ break;
+ case SBI_EXT_0_1_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_load_hart_mask_unpriv(scratch, (ulong *)args[0],
+ &hmask, out_trap);
+ if (ret != SBI_ETRAP)
+ ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
+ break;
+ case SBI_EXT_0_1_REMOTE_SFENCE_VMA:
+ tlb_info.start = (unsigned long)args[1];
+ tlb_info.size = (unsigned long)args[2];
+ tlb_info.type = SBI_TLB_FLUSH_VMA;
+ tlb_info.shart_mask = 1UL << source_hart;
+ ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
+ &hmask, out_trap);
+ if (ret != SBI_ETRAP)
+ ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
+ break;
+ case SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID:
+ tlb_info.start = (unsigned long)args[1];
+ tlb_info.size = (unsigned long)args[2];
+ tlb_info.asid = (unsigned long)args[3];
+ tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
+ tlb_info.shart_mask = 1UL << source_hart;
+ ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
+ &hmask, out_trap);
+ if (ret != SBI_ETRAP)
+ ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info);
+ break;
+ case SBI_EXT_0_1_SHUTDOWN:
+ sbi_system_shutdown(scratch, 0);
+ break;
+ default:
+ ret = SBI_ENOTSUPP;
+ };
+
+ return ret;
+}
+
+struct sbi_ecall_extension ecall_legacy = {
+ .extid_start = SBI_EXT_0_1_SET_TIMER,
+ .extid_end = SBI_EXT_0_1_SHUTDOWN,
+ .handle = sbi_ecall_legacy_handler,
+};