The new helper ast_cursor_page_flip() switches the cursor's front and
back BOs. This simplifies the cursor plane's update helper.
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
drivers/gpu/drm/ast/ast_cursor.c | 20 +++++++++++++++++++-
drivers/gpu/drm/ast/ast_drv.h | 2 +-
drivers/gpu/drm/ast/ast_mode.c | 12 +-----------
3 files changed, 21 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_cursor.c b/drivers/gpu/drm/ast/ast_cursor.c
index 7474baddf048..815d95b2f392 100644
--- a/drivers/gpu/drm/ast/ast_cursor.c
+++ b/drivers/gpu/drm/ast/ast_cursor.c
@@ -198,7 +198,7 @@ int ast_cursor_blit(struct ast_private *ast, struct
drm_framebuffer *fb)
return ret;
}
-void ast_cursor_set_base(struct ast_private *ast, u64 address)
+static void ast_cursor_set_base(struct ast_private *ast, u64 address)
{
u8 addr0 = (address >> 3) & 0xff;
u8 addr1 = (address >> 11) & 0xff;
@@ -209,6 +209,24 @@ void ast_cursor_set_base(struct ast_private *ast, u64
address)
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2);
}
+void ast_cursor_page_flip(struct ast_private *ast)
+{
+ struct drm_device *dev = ast->dev;
+ struct drm_gem_vram_object *gbo;
+ s64 off;
+
+ gbo = ast->cursor.gbo[ast->cursor.next_index];
+
+ off = drm_gem_vram_offset(gbo);
+ if (drm_WARN_ON_ONCE(dev, off < 0))
+ return; /* Bug: we didn't pin the cursor HW BO to VRAM. */
+
+ ast_cursor_set_base(ast, off);
+
+ ++ast->cursor.next_index;
+ ast->cursor.next_index %= ARRAY_SIZE(ast->cursor.gbo);
+}
+
int ast_cursor_move(struct drm_crtc *crtc, int x, int y)
{
struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 9bc1bb76ec91..e973c1ab96cb 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -319,7 +319,7 @@ void ast_release_firmware(struct drm_device *dev);
int ast_cursor_init(struct ast_private *ast);
void ast_cursor_fini(struct ast_private *ast);
int ast_cursor_blit(struct ast_private *ast, struct drm_framebuffer *fb);
-void ast_cursor_set_base(struct ast_private *ast, u64 address);
+void ast_cursor_page_flip(struct ast_private *ast);
int ast_cursor_move(struct drm_crtc *crtc, int x, int y);
#endif
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 8d5ba28c25d7..90a4050ef1c4 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -660,14 +660,11 @@ static void
ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct drm_device *dev = plane->dev;
struct drm_plane_state *state = plane->state;
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct ast_private *ast = to_ast_private(plane->dev);
struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
- struct drm_gem_vram_object *gbo;
- s64 off;
u8 jreg;
ast_crtc->offset_x = AST_MAX_HWC_WIDTH - fb->width;
@@ -675,14 +672,7 @@ ast_cursor_plane_helper_atomic_update(struct drm_plane
*plane,
if (state->fb != old_state->fb) {
/* A new cursor image was installed. */
- gbo = ast->cursor.gbo[ast->cursor.next_index];
- off = drm_gem_vram_offset(gbo);
- if (drm_WARN_ON_ONCE(dev, off < 0))
- return; /* Bug: we didn't pin cursor HW BO to VRAM. */
- ast_cursor_set_base(ast, off);
-
- ++ast->cursor.next_index;
- ast->cursor.next_index %= ARRAY_SIZE(ast->cursor.gbo);
+ ast_cursor_page_flip(ast);
}
ast_cursor_move(crtc, state->crtc_x, state->crtc_y);
--
2.27.0
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