[PATCH 1/2] memtest: Adjust code for 64-bit architectures

Sascha Hauer s.hauer at pengutronix.de
Wed Sep 19 00:32:07 PDT 2018


On Mon, Sep 17, 2018 at 10:03:42PM -0700, Andrey Smirnov wrote:
> Make use of %pa specifier to avoid warnings when building against
> 64-bit CPU (specifically AArch64) as well as adjust a number of
> patterns to be 64-bits wide.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
> ---
>  commands/memtest.c |  5 ++---
>  common/memtest.c   | 35 ++++++++++++++++++++---------------
>  2 files changed, 22 insertions(+), 18 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/commands/memtest.c b/commands/memtest.c
> index 99d4864e7..403ab91f6 100644
> --- a/commands/memtest.c
> +++ b/commands/memtest.c
> @@ -33,9 +33,8 @@ static int do_test_one_area(struct mem_test_resource *r, int bus_only,
>  {
>  	int ret;
>  
> -	printf("Testing memory space: "
> -			"0x%08x -> 0x%08x:\n",
> -			r->r->start,  r->r->end);
> +	printf("Testing memory space: %pa -> %pa:\n",
> +	       &r->r->start,  &r->r->end);
>  
>  	remap_range((void *)r->r->start, r->r->end -
>  			r->r->start + 1, cache_flag);
> diff --git a/common/memtest.c b/common/memtest.c
> index 0fc204675..5c96d46e9 100644
> --- a/common/memtest.c
> +++ b/common/memtest.c
> @@ -160,24 +160,29 @@ static void mem_test_report_failure(const char *failure_description,
>  				    resource_size_t actual_value,
>  				    volatile resource_size_t *address)
>  {
> +	/*
> +	 * expected_value and actual_value below are not really
> +	 * pointers, but we want them to be printed exactly the same
> +	 * as pointers would, so we use %pa regardless
> +	 */
>  	printf("FAILURE (%s): "
> -	       "expected 0x%08x, actual 0x%08x at address 0x%08x.\n",
> -	       failure_description, expected_value, actual_value,
> -	       (resource_size_t)address);
> +	       "expected %pa, actual %pa at address %pa.\n",
> +	       failure_description, &expected_value, &actual_value,
> +	       &address);
>  }
>  
>  int mem_test_bus_integrity(resource_size_t _start,
>  			   resource_size_t _end)
>  {
> -	static const resource_size_t bitpattern[] = {
> -		0x00000001,	/* single bit */
> -		0x00000003,	/* two adjacent bits */
> -		0x00000007,	/* three adjacent bits */
> -		0x0000000F,	/* four adjacent bits */
> -		0x00000005,	/* two non-adjacent bits */
> -		0x00000015,	/* three non-adjacent bits */
> -		0x00000055,	/* four non-adjacent bits */
> -		0xAAAAAAAA,	/* alternating 1/0 */
> +	static const uint64_t bitpattern[] = {
> +		0x0000000000000001ULL,	/* single bit */
> +		0x0000000000000003ULL,	/* two adjacent bits */
> +		0x0000000000000007ULL,	/* three adjacent bits */
> +		0x000000000000000FULL,	/* four adjacent bits */
> +		0x0000000000000005ULL,	/* two non-adjacent bits */
> +		0x0000000000000015ULL,	/* three non-adjacent bits */
> +		0x0000000000000055ULL,	/* four non-adjacent bits */
> +		0xAAAAAAAAAAAAAAAAULL,	/* alternating 1/0 */
>  	};
>  
>  	volatile resource_size_t *start, *dummy, num_words, val, readback, offset,
> @@ -217,7 +222,7 @@ int mem_test_bus_integrity(resource_size_t _start,
>  	 * pattern and ~pattern).
>  	 */
>  	for (i = 0; i < ARRAY_SIZE(bitpattern); i++) {
> -		val = bitpattern[i];
> +		val = (resource_size_t)bitpattern[i];
>  
>  		for (; val != 0; val <<= 1) {
>  			*start = val;
> @@ -282,8 +287,8 @@ int mem_test_bus_integrity(resource_size_t _start,
>  	 *              01ffffff is perfect.
>  	 */
>  
> -	pattern = 0xAAAAAAAA;
> -	anti_pattern = 0x55555555;
> +	pattern = (resource_size_t)0xAAAAAAAAAAAAAAAAULL;
> +	anti_pattern = (resource_size_t)0x5555555555555555ULL;
>  
>  	/*
>  	 * Write the default pattern at each of the
> -- 
> 2.17.1
> 
> 
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