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| author | Alex Deucher <alexdeucher@gmail.com> | 2009-12-09 14:40:06 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-10 15:09:05 +1000 |
| commit | 69b3b5e59bc763c30d0098ae4bbe1225c0e82a04 (patch) | |
| tree | 0e76e8bc46d589419eb16769a2c3560810395ac7 /drivers/gpu/drm/radeon/rs690.c | |
| parent | 2e7b6f7fa62d92d941c626f8ae45f5cd75a52d55 (diff) | |
| download | blackbird-obmc-linux-69b3b5e59bc763c30d0098ae4bbe1225c0e82a04.tar.gz blackbird-obmc-linux-69b3b5e59bc763c30d0098ae4bbe1225c0e82a04.zip | |
drm/radeon/kms/avivo: fix some bugs in the display bandwidth setup
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs690.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs690.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index eb486ee7ea00..98079367fbba 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -260,8 +260,9 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, b.full = rfixed_const(mode->crtc_hdisplay); c.full = rfixed_const(256); - a.full = rfixed_mul(wm->num_line_pair, b); - request_fifo_depth.full = rfixed_div(a, c); + a.full = rfixed_div(b, c); + request_fifo_depth.full = rfixed_mul(a, wm->num_line_pair); + request_fifo_depth.full = rfixed_ceil(request_fifo_depth); if (a.full < rfixed_const(4)) { wm->lb_request_fifo_depth = 4; } else { @@ -390,6 +391,7 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, a.full = rfixed_const(16); wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay); wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a); + wm->priority_mark_max.full = rfixed_ceil(wm->priority_mark_max); /* Determine estimated width */ estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full; @@ -399,6 +401,7 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, } else { a.full = rfixed_const(16); wm->priority_mark.full = rfixed_div(estimated_width, a); + wm->priority_mark.full = rfixed_ceil(wm->priority_mark); wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full; } } |
