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drm/radeon/kms: fix bandwidth calculation when sideport is present

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Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529

Reported-by: steckdenis@yahoo.fr
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-06-12 11:50:13 -04:00 committed by Dave Airlie
parent 1c48bc5f71
commit 0888e883ea
1 changed files with 1 additions and 5 deletions
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6
drivers/gpu/drm/radeon/rs690.c
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@ -228,10 +228,6 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
fixed20_12 a, b, c;
fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
/* FIXME: detect IGP with sideport memory, i don't think there is any
* such product available
*/
bool sideport = false;
if (!crtc->base.enabled) {
/* FIXME: wouldn't it better to set priority mark to maximum */
@ -300,7 +296,7 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
/* Maximun bandwidth is the minimun bandwidth of all component */
rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
if (sideport) {
if (rdev->mc.igp_sideport_enabled) {
if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
rdev->pm.sideport_bandwidth.full)
rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;