From: Thomas Zimmermann <tzimmermann@suse.de>
To: jfalempe@redhat.com, airlied@redhat.com
Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH v2 7/7] drm/ast: cursor: Drop page alignment
Date: Wed, 5 Mar 2025 17:30:46 +0100 [thread overview]
Message-ID: <20250305163207.267650-8-tzimmermann@suse.de> (raw)
In-Reply-To: <20250305163207.267650-1-tzimmermann@suse.de>
The cursor scanout address requires alignment to a multiple of 8,
but does not require page alignment. Change the offset calculation
accordingly. Frees up a few more bytes for the primary framebuffer.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/ast/ast_cursor.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ast/ast_cursor.c b/drivers/gpu/drm/ast/ast_cursor.c
index cb0c48d47207..5ee724bfd682 100644
--- a/drivers/gpu/drm/ast/ast_cursor.c
+++ b/drivers/gpu/drm/ast/ast_cursor.c
@@ -58,7 +58,7 @@ long ast_cursor_vram_offset(struct ast_device *ast)
if (size > ast->vram_size)
return -EINVAL;
- return PAGE_ALIGN_DOWN(ast->vram_size - size);
+ return ALIGN_DOWN(ast->vram_size - size, SZ_8);
}
static u32 ast_cursor_calculate_checksum(const void *src, unsigned int width, unsigned int height)
--
2.48.1
next prev parent reply other threads:[~2025-03-05 16:35 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-05 16:30 [PATCH v2 0/7] drm/ast: Various changes for video memory Thomas Zimmermann
2025-03-05 16:30 ` [PATCH v2 1/7] drm/ast: Replace AST_VIDMEM_SIZE_ with Linux SZ_ constants Thomas Zimmermann
2025-03-11 13:06 ` Jocelyn Falempe
2025-03-05 16:30 ` [PATCH v2 2/7] drm/ast: Add VGACRAA register constants Thomas Zimmermann
2025-03-11 13:07 ` Jocelyn Falempe
2025-03-05 16:30 ` [PATCH v2 3/7] drm/ast: Add VGACR99 " Thomas Zimmermann
2025-03-11 13:07 ` Jocelyn Falempe
2025-03-05 16:30 ` [PATCH v2 4/7] drm/ast: cursor: Add helpers for computing location in video memory Thomas Zimmermann
2025-03-11 13:07 ` Jocelyn Falempe
2025-03-05 16:30 ` [PATCH v2 5/7] drm/ast: Add helper for computing framebuffer " Thomas Zimmermann
2025-03-11 13:08 ` Jocelyn Falempe
2025-03-05 16:30 ` [PATCH v2 6/7] drm/ast: Remove vram_fb_available from struct ast_device Thomas Zimmermann
2025-03-11 13:08 ` Jocelyn Falempe
2025-03-05 16:30 ` Thomas Zimmermann [this message]
2025-03-11 13:10 ` [PATCH v2 7/7] drm/ast: cursor: Drop page alignment Jocelyn Falempe
2025-03-11 16:07 ` Thomas Zimmermann
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