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

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>

1 files changed, 1 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index bcc33195ebc2..64b94a815a6d 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -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;