search for: cordic

As some of you know, I'm creating a hardware MDCT core. At the moment I'm working out the best way to create a lookup table for the trig values, as set up in mdct_init: /* trig lookups... */ for(i=0;i<n/4;i++){ T[i*2]=FLOAT_CONV(cos((M_PI/n)*(4*i))); T[i*2+1]=FLOAT_CONV(-sin((M_PI/n)*(4*i))); T[n2+i*2]=FLOAT_CONV(cos((M_PI/(2*n))*(2*i+1)));

...10:19.720098-05:00 mothra kernel: [ 211.555207] Oops: 0000 [#1] PREEMPT SMP [ 211.555212] Modules linked in: rfcomm fuse vboxpci(O) vboxnetadp(O) vboxnetflt(O) snd_hda_codec_hdmi bnep vboxdrv(O) msr snd_hda_codec_idt snd_hda_codec_generic btusb btrtl btbcm btintel bluetooth arc4 brcmsmac uvcvideo cordic brcmutil videobuf2_vmalloc videobuf2_memops intel_rapl videobuf2_v4l2 videobuf2_core x86_pkg_temp_thermal b43 intel_powerclamp videodev coretemp mac80211 kvm_intel kvm cfg80211 irqbypass dell_rbtn crct10dif_pclmul crc32_pclmul ssb crc32c_intel ghash_clmulni_intel dell_laptop dell_wmi sparse_keymap...

https://bugs.freedesktop.org/show_bug.cgi?id=104181 Bug ID: 104181 Summary: [NV50/G94] system freeze on youtube with epiphany 3.26 Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau

...: IP: kmem_cache_alloc_trace+0x78/0x1b0 Apr 22 11:38:11 karpov kernel: PGD 1ac726067 Apr 22 11:38:12 karpov kernel: PUD 0 Apr 22 11:38:12 karpov kernel: Apr 22 11:38:12 karpov kernel: Oops: 0000 [#1] PREEMPT SMP Apr 22 11:38:12 karpov kernel: Modules linked in: ax25 arc4 snd_hda_codec_hdmi brcmsmac cordic brcmutil b43 mac80211 intel_powerclamp cfg80211 coretemp ssb kvm_intel snd_hda_codec_idt rng_core pcmcia snd_hda_codec_generic pcmcia_core uvcvideo kvm snd_hda_intel irqb ypass videobuf2_vmalloc iTCO_wdt videobuf2_memops iTCO_vendor_support videobuf2_v4l2 i7core_edac snd_hda_codec videobuf2_core ir...

...book PC [36277.691862] btrfs: Transaction aborted [36277.691866] Modules linked in: radeon ttm drm_kms_helper drm i2c_algo_bit cfbcopyarea cfbimgblt cfbfillrect psmouse hp_accel lis3lv02d ehci_hcd xhci_hcd snd_hda_codec_idt snd_hda_codec_hdmi snd_hda_intel snd_hda_codec r8169 brcmsmac bcma brcmutil cordic [36277.691913] Pid: 4491, comm: btrfs-endio-wri Not tainted 3.4.0-00091-gcb77fcd #1 [36277.691919] Call Trace: [36277.691933] [<ffffffff8106382f>] warn_slowpath_common+0x7e/0x96 [36277.691942] [<ffffffff810638db>] warn_slowpath_fmt+0x41/0x43 [36277.691952] [<ffffffff8125e626>]...

...i vboxnetadp(O) vboxnetflt(O) iscsi_ibft iscs i_boot_sysfs mei_wdt vboxdrv(O) bnep msr snd_hda_codec_idt snd_hda_codec_generic arc4 uvcvideo videobuf2_vmalloc video buf2_memops videobuf2_v4l2 videobuf2_core videodev intel_rapl btusb btrtl x86_pkg_temp_thermal intel_powerclamp btbcm brcmsmac btintel cordic brcmutil bluetooth snd_hda_intel ecdh_generic coretemp snd_hda_codec mac80211 snd_hda_core kvm _intel nouveau snd_hwdep snd_seq cfg80211 mxm_wmi dell_rbtn kvm snd_pcm irqbypass ttm crct10dif_pclmul crc32_pclmul sn d_seq_device crc32c_intel ghash_clmulni_intel drm_kms_helper iTCO_wdt iTCO_vendor_sup...