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- /*
- * Copyright (C) 2016 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program 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 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- /** @file
- *
- * I/O buffer tests
- *
- */
-
- /* Forcibly enable assertions */
- #undef NDEBUG
-
- #include <stdint.h>
- #include <string.h>
- #include <assert.h>
- #include <ipxe/iobuf.h>
- #include <ipxe/io.h>
- #include <ipxe/test.h>
-
- /* Forward declaration */
- struct self_test iobuf_test __self_test;
-
- /**
- * Report I/O buffer allocation test result
- *
- * @v len Required length of buffer
- * @v align Physical alignment
- * @v offset Offset from physical alignment
- * @v file Test code file
- * @v line Test code line
- */
- static inline void alloc_iob_okx ( size_t len, size_t align, size_t offset,
- const char *file, unsigned int line ) {
- struct io_buffer *iobuf;
-
- /* Allocate I/O buffer */
- iobuf = alloc_iob_raw ( len, align, offset );
- okx ( iobuf != NULL, file, line );
- DBGC ( &iobuf_test, "IOBUF %p (%#08lx+%#zx) for %#zx align %#zx "
- "offset %#zx\n", iobuf, virt_to_phys ( iobuf->data ),
- iob_tailroom ( iobuf ), len, align, offset );
-
- /* Validate requested length and alignment */
- okx ( ( ( ( intptr_t ) iobuf ) & ( __alignof__ ( *iobuf ) - 1 ) ) == 0,
- file, line );
- okx ( iob_tailroom ( iobuf ) >= len, file, line );
- okx ( ( ( align == 0 ) ||
- ( ( virt_to_phys ( iobuf->data ) & ( align - 1 ) ) ==
- ( offset & ( align - 1 ) ) ) ), file, line );
-
- /* Overwrite entire content of I/O buffer (for Valgrind) */
- memset ( iob_put ( iobuf, len ), 0x55, len );
-
- /* Free I/O buffer */
- free_iob ( iobuf );
- }
- #define alloc_iob_ok( len, align, offset ) \
- alloc_iob_okx ( len, align, offset, __FILE__, __LINE__ )
-
- /**
- * Report I/O buffer allocation failure test result
- *
- * @v len Required length of buffer
- * @v align Physical alignment
- * @v offset Offset from physical alignment
- * @v file Test code file
- * @v line Test code line
- */
- static inline void alloc_iob_fail_okx ( size_t len, size_t align, size_t offset,
- const char *file, unsigned int line ) {
- struct io_buffer *iobuf;
-
- /* Allocate I/O buffer */
- iobuf = alloc_iob_raw ( len, align, offset );
- okx ( iobuf == NULL, file, line );
- }
- #define alloc_iob_fail_ok( len, align, offset ) \
- alloc_iob_fail_okx ( len, align, offset, __FILE__, __LINE__ )
-
- /**
- * Perform I/O buffer self-tests
- *
- */
- static void iobuf_test_exec ( void ) {
-
- /* Check zero-length allocations */
- alloc_iob_ok ( 0, 0, 0 );
- alloc_iob_ok ( 0, 0, 1 );
- alloc_iob_ok ( 0, 1, 0 );
- alloc_iob_ok ( 0, 1024, 0 );
- alloc_iob_ok ( 0, 139, -17 );
-
- /* Check various sensible allocations */
- alloc_iob_ok ( 1, 0, 0 );
- alloc_iob_ok ( 16, 16, 0 );
- alloc_iob_ok ( 64, 0, 0 );
- alloc_iob_ok ( 65, 0, 0 );
- alloc_iob_ok ( 65, 1024, 19 );
- alloc_iob_ok ( 1536, 1536, 0 );
- alloc_iob_ok ( 2048, 2048, 0 );
- alloc_iob_ok ( 2048, 2048, -10 );
-
- /* Excessively large or excessively aligned allocations should fail */
- alloc_iob_fail_ok ( -1UL, 0, 0 );
- alloc_iob_fail_ok ( -1UL, 1024, 0 );
- alloc_iob_fail_ok ( 0, -1UL, 0 );
- alloc_iob_fail_ok ( 1024, -1UL, 0 );
- }
-
- /** I/O buffer self-test */
- struct self_test iobuf_test __self_test = {
- .name = "iobuf",
- .exec = iobuf_test_exec,
- };
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