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<p style="margin-top:0;margin-bottom:0">Could also use do_div. Either way:</p>
<p style="margin-top:0;margin-bottom:0">Reviewed-by: Alex Deucher <alexander.deucher@amd.com><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Nicholas Kazlauskas <nicholas.kazlauskas@amd.com><br>
<b>Sent:</b> Wednesday, December 19, 2018 9:12:09 AM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Li, Sun peng (Leo); Wentland, Harry; Kazlauskas, Nicholas<br>
<b>Subject:</b> [PATCH] drm/amd/display: Use div_u64 for flip timestamp ns to ms</font>
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<div class="PlainText">Resolves __udivdi3 missing errors when building for i386.<br>
<br>
Fixes: 6378ef012ddc ("drm/amd/display: Add below the range support for FreeSync")<br>
<br>
Change-Id: I4ded5790160054e6908367f20a63257225517714<br>
Cc: Leo Li <sunpeng.li@amd.com><br>
Cc: Harry Wentland <harry.wentland@amd.com><br>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com><br>
---<br>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 ++++-<br>
1 file changed, 4 insertions(+), 1 deletion(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
index e16e62139ec3..920649332055 100644<br>
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
@@ -4550,6 +4550,7 @@ static void amdgpu_dm_do_flip(struct drm_crtc *crtc,<br>
struct dc_state *state)<br>
{<br>
unsigned long flags;<br>
+ uint64_t timestamp_ns;<br>
uint32_t target_vblank;<br>
int r, vpos, hpos;<br>
struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);<br>
@@ -4612,7 +4613,9 @@ static void amdgpu_dm_do_flip(struct drm_crtc *crtc,<br>
addr.address.grph.addr.low_part = lower_32_bits(afb->address);<br>
addr.address.grph.addr.high_part = upper_32_bits(afb->address);<br>
addr.flip_immediate = async_flip;<br>
- addr.flip_timestamp_in_us = ktime_get_ns() / 1000;<br>
+<br>
+ timestamp_ns = ktime_get_ns();<br>
+ addr.flip_timestamp_in_us = div_u64(timestamp_ns, 1000);<br>
<br>
<br>
if (acrtc->base.state->event)<br>
-- <br>
2.17.1<br>
<br>
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