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[RFC,03/16] drm/ttm: Use the BIT macro for the TTM_TT_FLAGs

Message ID 20230215161405.187368-4-thomas.hellstrom@linux.intel.com (mailing list archive)
State New
Headers show
Series Add a TTM shrinker | expand

Commit Message

Thomas Hellström Feb. 15, 2023, 4:13 p.m. UTC
New code is recommended to use the BIT macro instead of the explicit
shifts. Change the older defines so that we can keep the style consistent
with upcoming changes.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 include/drm/ttm/ttm_tt.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Christian König Feb. 15, 2023, 5:33 p.m. UTC | #1
Am 15.02.23 um 17:13 schrieb Thomas Hellström:
> New code is recommended to use the BIT macro instead of the explicit
> shifts. Change the older defines so that we can keep the style consistent
> with upcoming changes.
>
> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
> ---
>   include/drm/ttm/ttm_tt.h | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
> index b7d3f3843f1e..cc54be1912e1 100644
> --- a/include/drm/ttm/ttm_tt.h
> +++ b/include/drm/ttm/ttm_tt.h
> @@ -83,12 +83,12 @@ struct ttm_tt {
>   	 * set by TTM after ttm_tt_populate() has successfully returned, and is
>   	 * then unset when TTM calls ttm_tt_unpopulate().
>   	 */
> -#define TTM_TT_FLAG_SWAPPED		(1 << 0)
> -#define TTM_TT_FLAG_ZERO_ALLOC		(1 << 1)
> -#define TTM_TT_FLAG_EXTERNAL		(1 << 2)
> -#define TTM_TT_FLAG_EXTERNAL_MAPPABLE	(1 << 3)
> +#define TTM_TT_FLAG_SWAPPED		BIT(0)
> +#define TTM_TT_FLAG_ZERO_ALLOC		BIT(1)
> +#define TTM_TT_FLAG_EXTERNAL		BIT(2)
> +#define TTM_TT_FLAG_EXTERNAL_MAPPABLE	BIT(3)
>   
> -#define TTM_TT_FLAG_PRIV_POPULATED  (1U << 31)
> +#define TTM_TT_FLAG_PRIV_POPULATED	BIT(31)

While at it please just use BIT(4) for this, there is actually nothing 
special about it.

Christian.

>   	uint32_t page_flags;
>   	/** @num_pages: Number of pages in the page array. */
>   	uint32_t num_pages;
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Patch

diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index b7d3f3843f1e..cc54be1912e1 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -83,12 +83,12 @@  struct ttm_tt {
 	 * set by TTM after ttm_tt_populate() has successfully returned, and is
 	 * then unset when TTM calls ttm_tt_unpopulate().
 	 */
-#define TTM_TT_FLAG_SWAPPED		(1 << 0)
-#define TTM_TT_FLAG_ZERO_ALLOC		(1 << 1)
-#define TTM_TT_FLAG_EXTERNAL		(1 << 2)
-#define TTM_TT_FLAG_EXTERNAL_MAPPABLE	(1 << 3)
+#define TTM_TT_FLAG_SWAPPED		BIT(0)
+#define TTM_TT_FLAG_ZERO_ALLOC		BIT(1)
+#define TTM_TT_FLAG_EXTERNAL		BIT(2)
+#define TTM_TT_FLAG_EXTERNAL_MAPPABLE	BIT(3)
 
-#define TTM_TT_FLAG_PRIV_POPULATED  (1U << 31)
+#define TTM_TT_FLAG_PRIV_POPULATED	BIT(31)
 	uint32_t page_flags;
 	/** @num_pages: Number of pages in the page array. */
 	uint32_t num_pages;