Signed-off-by: Xiaotian Wu <wuxiaot...@loongson.cn>
Signed-off-by: Zhou Yang <zhouy...@loongson.cn>
---
grub-core/kern/efi/mm.c | 3 +-
grub-core/kern/loongarch64/cache.c | 39 ++++++++++++
grub-core/kern/loongarch64/cache_flush.S | 33 ++++++++++
grub-core/kern/loongarch64/efi/init.c | 77 ++++++++++++++++++++++++
grub-core/lib/efi/halt.c | 2 +-
include/grub/efi/efi.h | 2 +-
include/grub/loongarch64/efi/memory.h | 24 ++++++++
include/grub/loongarch64/time.h | 28 +++++++++
include/grub/loongarch64/types.h | 34 +++++++++++
9 files changed, 239 insertions(+), 3 deletions(-)
create mode 100644 grub-core/kern/loongarch64/cache.c
create mode 100644 grub-core/kern/loongarch64/cache_flush.S
create mode 100644 grub-core/kern/loongarch64/efi/init.c
create mode 100644 include/grub/loongarch64/efi/memory.h
create mode 100644 include/grub/loongarch64/time.h
create mode 100644 include/grub/loongarch64/types.h
diff --git a/grub-core/kern/efi/mm.c b/grub-core/kern/efi/mm.c
index d290c9a76..5a486558e 100644
--- a/grub-core/kern/efi/mm.c
+++ b/grub-core/kern/efi/mm.c
@@ -654,7 +654,8 @@ grub_efi_mm_init (void)
grub_mm_add_region_fn = grub_efi_mm_add_regions;
}
-#if defined (__aarch64__) || defined (__arm__) || defined (__riscv)
+#if defined (__aarch64__) || defined (__arm__) || defined (__riscv) || \
+ defined (__loongarch__)
grub_err_t
grub_efi_get_ram_base(grub_addr_t *base_addr)
{
diff --git a/grub-core/kern/loongarch64/cache.c
b/grub-core/kern/loongarch64/cache.c
new file mode 100644
index 000000000..43d314df9
--- /dev/null
+++ b/grub-core/kern/loongarch64/cache.c
@@ -0,0 +1,39 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/cache.h>
+#include <grub/misc.h>
+
+/* Prototypes for asm functions. */
+void grub_arch_clean_dcache_range (void);
+void grub_arch_invalidate_icache_range (void);
+
+void
+grub_arch_sync_caches (void *address __attribute__((unused)),
+ grub_size_t len __attribute__((unused)))
+{
+ grub_arch_clean_dcache_range ();
+ grub_arch_invalidate_icache_range ();
+}
+
+void
+grub_arch_sync_dma_caches (volatile void *address __attribute__((unused)),
+ grub_size_t len __attribute__((unused)))
+{
+ /* DMA non-coherent devices not supported yet */
+}
diff --git a/grub-core/kern/loongarch64/cache_flush.S
b/grub-core/kern/loongarch64/cache_flush.S
new file mode 100644
index 000000000..43b97d822
--- /dev/null
+++ b/grub-core/kern/loongarch64/cache_flush.S
@@ -0,0 +1,33 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+ .file "cache_flush.S"
+ .text
+/*
+ * No further work to do because cache consistency is maintained by hardware on
+ * LoongArch.
+ */
+FUNCTION(grub_arch_clean_dcache_range)
+ dbar 0
+ jr $ra
+
+FUNCTION(grub_arch_invalidate_icache_range)
+ ibar 0
+ jr $ra
diff --git a/grub-core/kern/loongarch64/efi/init.c
b/grub-core/kern/loongarch64/efi/init.c
new file mode 100644
index 000000000..8cbeafaba
--- /dev/null
+++ b/grub-core/kern/loongarch64/efi/init.c
@@ -0,0 +1,77 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/env.h>
+#include <grub/kernel.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/efi/efi.h>
+#include <grub/loader.h>
+
+#define EFI_TIMER_PERIOD_MILLISECONDS(ms) ((grub_uint64_t)(ms * 10000))
+
+static grub_uint64_t tmr;
+static grub_efi_event_t tmr_evt;
+
+static grub_uint64_t
+grub_efi_get_time_ms (void)
+{
+ return tmr;
+}
+
+static void
+grub_loongson_increment_timer (grub_efi_event_t event __attribute__ ((unused)),
+ void *context __attribute__ ((unused)))
+{
+ tmr += 10;
+}
+
+void
+grub_machine_init (void)
+{
+ grub_efi_boot_services_t *b;
+
+ grub_efi_init ();
+
+ b = grub_efi_system_table->boot_services;
+ efi_call_5 (b->create_event, GRUB_EFI_EVT_TIMER | GRUB_EFI_EVT_NOTIFY_SIGNAL,
+ GRUB_EFI_TPL_CALLBACK, grub_loongson_increment_timer, NULL,
&tmr_evt);
+ efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_PERIODIC,
EFI_TIMER_PERIOD_MILLISECONDS(10));
+
+ grub_install_get_time_ms (grub_efi_get_time_ms);
+}
+
+void
+grub_machine_fini (int flags)
+{
+ grub_efi_boot_services_t *b;
+
+ if (!(flags & GRUB_LOADER_FLAG_NORETURN))
+ return;
+
+ b = grub_efi_system_table->boot_services;
+
+ efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_CANCEL, 0);
+ efi_call_1 (b->close_event, tmr_evt);
+
+ grub_efi_fini ();
+
+ if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
+ grub_efi_memory_fini ();
+}
diff --git a/grub-core/lib/efi/halt.c b/grub-core/lib/efi/halt.c
index 29d413641..e6356894a 100644
--- a/grub-core/lib/efi/halt.c
+++ b/grub-core/lib/efi/halt.c
@@ -31,7 +31,7 @@ grub_halt (void)
grub_machine_fini (GRUB_LOADER_FLAG_NORETURN |
GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY);
#if !defined(__ia64__) && !defined(__arm__) && !defined(__aarch64__) && \
- !defined(__riscv)
+ !defined(__loongarch__) && !defined(__riscv)
grub_acpi_halt ();
#endif
efi_call_4 (grub_efi_system_table->runtime_services->reset_system,
diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h
index eb2dfdfce..6f1a6254e 100644
--- a/include/grub/efi/efi.h
+++ b/include/grub/efi/efi.h
@@ -98,7 +98,7 @@ extern void (*EXPORT_VAR(grub_efi_net_config))
(grub_efi_handle_t hnd,
char **device,
char **path);
-#if defined(__arm__) || defined(__aarch64__) || defined(__riscv)
+#if defined(__arm__) || defined(__aarch64__) || defined(__riscv) ||
defined(__loongarch__)
void *EXPORT_FUNC(grub_efi_get_firmware_fdt)(void);
grub_err_t EXPORT_FUNC(grub_efi_get_ram_base)(grub_addr_t *);
#include <grub/cpu/linux.h>
diff --git a/include/grub/loongarch64/efi/memory.h
b/include/grub/loongarch64/efi/memory.h
new file mode 100644
index 000000000..ca8dbfea5
--- /dev/null
+++ b/include/grub/loongarch64/efi/memory.h
@@ -0,0 +1,24 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_MEMORY_CPU_HEADER
+#include <grub/efi/memory.h>
+
+#define GRUB_EFI_MAX_USABLE_ADDRESS 0xffffffffffffULL
+
+#endif /* ! GRUB_MEMORY_CPU_HEADER */
diff --git a/include/grub/loongarch64/time.h b/include/grub/loongarch64/time.h
new file mode 100644
index 000000000..e5724bd83
--- /dev/null
+++ b/include/grub/loongarch64/time.h
@@ -0,0 +1,28 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KERNEL_CPU_TIME_HEADER
+#define KERNEL_CPU_TIME_HEADER 1
+
+static inline void
+grub_cpu_idle(void)
+{
+ __asm__ __volatile__("idle 0");
+}
+
+#endif
diff --git a/include/grub/loongarch64/types.h b/include/grub/loongarch64/types.h
new file mode 100644
index 000000000..a9e09171a
--- /dev/null
+++ b/include/grub/loongarch64/types.h
@@ -0,0 +1,34 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_TYPES_CPU_HEADER
+#define GRUB_TYPES_CPU_HEADER 1
+
+/* The size of void *. */
+#define GRUB_TARGET_SIZEOF_VOID_P 8
+
+/* The size of long. */
+#define GRUB_TARGET_SIZEOF_LONG 8
+
+/* LoongArch is little-endian. */
+#undef GRUB_TARGET_WORDS_BIGENDIAN
+
+/* Unaligned accesses are only supported if MMU is enabled. */
+#undef GRUB_HAVE_UNALIGNED_ACCESS
+
+#endif /* ! GRUB_TYPES_CPU_HEADER */
--
2.35.1
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