mm: rework accept memory helpers

Make accept_memory() and range_contains_unaccepted_memory() take 'start'
and 'size' arguments instead of 'start' and 'end'.

Remove accept_page(), replacing it with direct calls to accept_memory(). 
The accept_page() name is going to be used for a different function.

Link: https://lkml.kernel.org/r/20240809114854.3745464-6-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/firmware/efi/libstub/efistub.h

@@ -1229,7 +1229,7 @@ efi_zboot_entry(efi_handle_t handle, efi_system_table_t *systab);
 efi_status_t allocate_unaccepted_bitmap(__u32 nr_desc,
 					struct efi_boot_memmap *map);
 void process_unaccepted_memory(u64 start, u64 end);
-void accept_memory(phys_addr_t start, phys_addr_t end);
+void accept_memory(phys_addr_t start, unsigned long size);
 void arch_accept_memory(phys_addr_t start, phys_addr_t end);
 
 #endif

drivers/firmware/efi/libstub/unaccepted_memory.c

@@ -177,9 +177,10 @@ void process_unaccepted_memory(u64 start, u64 end)
 		   start / unit_size, (end - start) / unit_size);
 }
 
-void accept_memory(phys_addr_t start, phys_addr_t end)
+void accept_memory(phys_addr_t start, unsigned long size)
 {
 	unsigned long range_start, range_end;
+	phys_addr_t end = start + size;
 	unsigned long bitmap_size;
 	u64 unit_size;