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authorAlex Deucher <alexander.deucher@amd.com>2013-11-08 03:16:23 +0400
committerAlex Deucher <alexander.deucher@amd.com>2013-11-08 21:33:38 +0400
commit1cd73ff70d13a22faa95db8323382dd6d036554e (patch)
tree1ab0a734088e34a63d62f79038564ffc0bf3be4b /drivers/gpu/drm/radeon/rs690.c
parentd45fd24dd30a791ba0739a1d3c4fd29710d94b9f (diff)
downloadlinux-1cd73ff70d13a22faa95db8323382dd6d036554e.tar.xz
drm/radeon: fix-up some float to fixed conversion thinkos
Spotted by Brad Smith when porting to OpenBSD. Noticed-by: Brad Smith <brad@comstyle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs690.c')
-rw-r--r--drivers/gpu/drm/radeon/rs690.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 1447d794c22a..1c560629575a 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -345,9 +345,11 @@ static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
rdev->pm.sideport_bandwidth.full)
max_bandwidth = rdev->pm.sideport_bandwidth;
- read_delay_latency.full = dfixed_const(370 * 800 * 1000);
- read_delay_latency.full = dfixed_div(read_delay_latency,
- rdev->pm.igp_sideport_mclk);
+ read_delay_latency.full = dfixed_const(370 * 800);
+ a.full = dfixed_const(1000);
+ b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a);
+ read_delay_latency.full = dfixed_div(read_delay_latency, b);
+ read_delay_latency.full = dfixed_mul(read_delay_latency, a);
} else {
if (max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
rdev->pm.k8_bandwidth.full)
@@ -488,14 +490,10 @@ static void rs690_compute_mode_priority(struct radeon_device *rdev,
}
if (wm0->priority_mark.full > priority_mark02.full)
priority_mark02.full = wm0->priority_mark.full;
- if (dfixed_trunc(priority_mark02) < 0)
- priority_mark02.full = 0;
if (wm0->priority_mark_max.full > priority_mark02.full)
priority_mark02.full = wm0->priority_mark_max.full;
if (wm1->priority_mark.full > priority_mark12.full)
priority_mark12.full = wm1->priority_mark.full;
- if (dfixed_trunc(priority_mark12) < 0)
- priority_mark12.full = 0;
if (wm1->priority_mark_max.full > priority_mark12.full)
priority_mark12.full = wm1->priority_mark_max.full;
*d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
@@ -526,8 +524,6 @@ static void rs690_compute_mode_priority(struct radeon_device *rdev,
}
if (wm0->priority_mark.full > priority_mark02.full)
priority_mark02.full = wm0->priority_mark.full;
- if (dfixed_trunc(priority_mark02) < 0)
- priority_mark02.full = 0;
if (wm0->priority_mark_max.full > priority_mark02.full)
priority_mark02.full = wm0->priority_mark_max.full;
*d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
@@ -555,8 +551,6 @@ static void rs690_compute_mode_priority(struct radeon_device *rdev,
}
if (wm1->priority_mark.full > priority_mark12.full)
priority_mark12.full = wm1->priority_mark.full;
- if (dfixed_trunc(priority_mark12) < 0)
- priority_mark12.full = 0;
if (wm1->priority_mark_max.full > priority_mark12.full)
priority_mark12.full = wm1->priority_mark_max.full;
*d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);