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drm/i915: Don't trim cursor addresses to 11 bits

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We can safely assume that cursor addresses will not extend beyond the
addressable screen dimensions; setting the additional bits is harmless in
any case.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Keith Packard 2009-05-30 20:42:29 -07:00 committed by Eric Anholt
parent cb66c692d1
commit 2245fda810
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/intel_display.c
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@ -2012,16 +2012,16 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
uint32_t adder;
if (x < 0) {
temp |= (CURSOR_POS_SIGN << CURSOR_X_SHIFT);
temp |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
x = -x;
}
if (y < 0) {
temp |= (CURSOR_POS_SIGN << CURSOR_Y_SHIFT);
temp |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
y = -y;
}
temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
temp |= x << CURSOR_X_SHIFT;
temp |= y << CURSOR_Y_SHIFT;
adder = intel_crtc->cursor_addr;
I915_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);