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path: root/drivers/firmware/efi/libstub/loongarch-stub.c
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Diffstat (limited to 'drivers/firmware/efi/libstub/loongarch-stub.c')
-rw-r--r--drivers/firmware/efi/libstub/loongarch-stub.c67
1 files changed, 1 insertions, 66 deletions
diff --git a/drivers/firmware/efi/libstub/loongarch-stub.c b/drivers/firmware/efi/libstub/loongarch-stub.c
index 6b30fc281458..eee7ed43cdfb 100644
--- a/drivers/firmware/efi/libstub/loongarch-stub.c
+++ b/drivers/firmware/efi/libstub/loongarch-stub.c
@@ -9,18 +9,10 @@
#include <asm/addrspace.h>
#include "efistub.h"
-typedef void __noreturn (*kernel_entry_t)(bool efi, unsigned long cmdline,
- unsigned long systab);
-
extern int kernel_asize;
extern int kernel_fsize;
extern int kernel_offset;
-extern kernel_entry_t kernel_entry;
-
-efi_status_t check_platform_features(void)
-{
- return EFI_SUCCESS;
-}
+extern int kernel_entry;
efi_status_t handle_kernel_image(unsigned long *image_addr,
unsigned long *image_size,
@@ -53,66 +45,9 @@ efi_status_t handle_kernel_image(unsigned long *image_addr,
return status;
}
-struct exit_boot_struct {
- efi_memory_desc_t *runtime_map;
- int runtime_entry_count;
-};
-
-static efi_status_t exit_boot_func(struct efi_boot_memmap *map, void *priv)
-{
- struct exit_boot_struct *p = priv;
-
- /*
- * Update the memory map with virtual addresses. The function will also
- * populate @runtime_map with copies of just the EFI_MEMORY_RUNTIME
- * entries so that we can pass it straight to SetVirtualAddressMap()
- */
- efi_get_virtmap(map->map, map->map_size, map->desc_size,
- p->runtime_map, &p->runtime_entry_count);
-
- return EFI_SUCCESS;
-}
-
unsigned long kernel_entry_address(void)
{
unsigned long base = (unsigned long)&kernel_offset - kernel_offset;
return (unsigned long)&kernel_entry - base + VMLINUX_LOAD_ADDRESS;
}
-
-efi_status_t efi_boot_kernel(void *handle, efi_loaded_image_t *image,
- unsigned long kernel_addr, char *cmdline_ptr)
-{
- kernel_entry_t real_kernel_entry;
- struct exit_boot_struct priv;
- unsigned long desc_size;
- efi_status_t status;
- u32 desc_ver;
-
- status = efi_alloc_virtmap(&priv.runtime_map, &desc_size, &desc_ver);
- if (status != EFI_SUCCESS) {
- efi_err("Unable to retrieve UEFI memory map.\n");
- return status;
- }
-
- efi_info("Exiting boot services\n");
-
- efi_novamap = false;
- status = efi_exit_boot_services(handle, &priv, exit_boot_func);
- if (status != EFI_SUCCESS)
- return status;
-
- /* Install the new virtual address map */
- efi_rt_call(set_virtual_address_map,
- priv.runtime_entry_count * desc_size, desc_size,
- desc_ver, priv.runtime_map);
-
- /* Config Direct Mapping */
- csr_write64(CSR_DMW0_INIT, LOONGARCH_CSR_DMWIN0);
- csr_write64(CSR_DMW1_INIT, LOONGARCH_CSR_DMWIN1);
-
- real_kernel_entry = (void *)kernel_entry_address();
-
- real_kernel_entry(true, (unsigned long)cmdline_ptr,
- (unsigned long)efi_system_table);
-}