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drm/radeon: Use cursor_set2 hook for enabling / disabling the HW cursor 

The cursor_set2 hook provides the cursor hotspot position within the
cursor image. When the hotspot position changes, we can adjust the cursor
position such that the hotspot doesn't move on the screen. This prevents
the cursor from appearing to intermittently jump around on the screen
when the position of the hotspot within the cursor image changes.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2014-11-18 18:00:08 +09:00 committed by Alex Deucher
parent cc5ac1ca79
commit 78b1a6010b
3 changed files with 52 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
drivers/gpu/drm/radeon/radeon_cursor.c
View File

@ -117,8 +117,10 @@ static void radeon_show_cursor(struct drm_crtc *crtc)
}
}
static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y);
static void radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj,
uint64_t gpu_addr)
uint64_t gpu_addr, int hot_x, int hot_y)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
@ -142,13 +144,28 @@ static void radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj,
/* offset is from DISP(2)_BASE_ADDRESS */
WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
}
if (hot_x != radeon_crtc->cursor_hot_x ||
hot_y != radeon_crtc->cursor_hot_y) {
int x, y;
x = radeon_crtc->cursor_x + radeon_crtc->cursor_hot_x - hot_x;
y = radeon_crtc->cursor_y + radeon_crtc->cursor_hot_y - hot_y;
radeon_cursor_move_locked(crtc, x, y);
radeon_crtc->cursor_hot_x = hot_x;
radeon_crtc->cursor_hot_y = hot_y;
}
}
int radeon_crtc_cursor_set(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
uint32_t width,
uint32_t height)
int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
uint32_t width,
uint32_t height,
int32_t hot_x,
int32_t hot_y)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
@ -192,7 +209,7 @@ int radeon_crtc_cursor_set(struct drm_crtc *crtc,
radeon_crtc->cursor_height = height;
radeon_lock_cursor(crtc, true);
radeon_set_cursor(crtc, obj, gpu_addr);
radeon_set_cursor(crtc, obj, gpu_addr, hot_x, hot_y);
radeon_show_cursor(crtc);
radeon_lock_cursor(crtc, false);
@ -215,8 +232,7 @@ fail:
return ret;
}
int radeon_crtc_cursor_move(struct drm_crtc *crtc,
int x, int y)
static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
@ -281,7 +297,6 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
}
}
radeon_lock_cursor(crtc, true);
if (ASIC_IS_DCE4(rdev)) {
WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset, (x << 16) | y);
WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
@ -308,7 +323,21 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
(yorigin * 256)));
}
radeon_lock_cursor(crtc, false);
radeon_crtc->cursor_x = x;
radeon_crtc->cursor_y = y;
return 0;
}
int radeon_crtc_cursor_move(struct drm_crtc *crtc,
int x, int y)
{
int ret;
radeon_lock_cursor(crtc, true);
ret = radeon_cursor_move_locked(crtc, x, y);
radeon_lock_cursor(crtc, false);
return ret;
}

2
drivers/gpu/drm/radeon/radeon_display.c
View File

@ -635,7 +635,7 @@ radeon_crtc_set_config(struct drm_mode_set *set)
return ret;
}
static const struct drm_crtc_funcs radeon_crtc_funcs = {
.cursor_set = radeon_crtc_cursor_set,
.cursor_set2 = radeon_crtc_cursor_set2,
.cursor_move = radeon_crtc_cursor_move,
.gamma_set = radeon_crtc_gamma_set,
.set_config = radeon_crtc_set_config,

16
drivers/gpu/drm/radeon/radeon_mode.h
View File

@ -321,6 +321,10 @@ struct radeon_crtc {
uint32_t crtc_offset;
struct drm_gem_object *cursor_bo;
uint64_t cursor_addr;
int cursor_x;
int cursor_y;
int cursor_hot_x;
int cursor_hot_y;
int cursor_width;
int cursor_height;
int max_cursor_width;
@ -805,11 +809,13 @@ extern int radeon_crtc_set_base_atomic(struct drm_crtc *crtc,
extern int radeon_crtc_do_set_base(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
int x, int y, int atomic);
extern int radeon_crtc_cursor_set(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
uint32_t width,
uint32_t height);
extern int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
uint32_t width,
uint32_t height,
int32_t hot_x,
int32_t hot_y);
extern int radeon_crtc_cursor_move(struct drm_crtc *crtc,
int x, int y);