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drm/nouveau/volt: use kernel's 64-bit signed division function
Doing direct 64 bit divisions in kernel code leads to references to undefined symbols on 32 bit architectures. Replace such divisions with calls to div64_s64 to make the module usable on 32 bit archs. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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1 changed files with 3 additions and 3 deletions
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@ -116,9 +116,9 @@ nvkm_volt_map(struct nvkm_volt *volt, u8 id, u8 temp)
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return volt->speedo;
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if (ver == 0x10 || (ver == 0x20 && info.mode == 0)) {
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result = (s64)info.arg[0] / 10;
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result += ((s64)info.arg[1] * volt->speedo) / 10;
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result += ((s64)info.arg[2] * volt->speedo * volt->speedo) / 100000;
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result = div64_s64((s64)info.arg[0], 10);
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result += div64_s64((s64)info.arg[1] * volt->speedo, 10);
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result += div64_s64((s64)info.arg[2] * volt->speedo * volt->speedo, 100000);
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} else if (ver == 0x20) {
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switch (info.mode) {
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/* 0x0 handled above! */
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