search for: maxshift

...accumulate_nsecs_to_secs(tk); + *action |= accumulate_nsecs_to_secs(tk); /* Accumulate raw time */ raw_nsecs = (u64)tk->raw_interval << shift; @@ -1369,7 +1369,7 @@ static void update_wall_time(void) struct timekeeper *tk = &shadow_timekeeper; cycle_t offset; int shift = 0, maxshift; - unsigned int action; + unsigned int action = 0; unsigned long flags; raw_spin_lock_irqsave(&timekeeper_lock, flags); @@ -1404,7 +1404,7 @@ static void update_wall_time(void) maxshift = (64 - (ilog2(ntp_tick_length())+1)) - 1; shift = min(shift, maxshift); while (offset >= tk-&...

...accumulate_nsecs_to_secs(tk); + *action |= accumulate_nsecs_to_secs(tk); /* Accumulate raw time */ raw_nsecs = (u64)tk->raw_interval << shift; @@ -1367,7 +1367,7 @@ static void update_wall_time(void) struct timekeeper *tk = &shadow_timekeeper; cycle_t offset; int shift = 0, maxshift; - unsigned int action; + unsigned int action = 0; unsigned long flags; raw_spin_lock_irqsave(&timekeeper_lock, flags); @@ -1402,7 +1402,7 @@ static void update_wall_time(void) maxshift = (64 - (ilog2(ntp_tick_length())+1)) - 1; shift = min(shift, maxshift); while (offset >= tk-&...

...;},%c", mode->mdct.kfft[0]->twiddles[j].r, mode->mdct.kfft[0]->twiddles[j].i,(j+3)%2==0?'\n':' '); fprintf (file, "};\n"); +#ifdef OVERRIDE_FFT + dump_mode_arch(mode); +#endif /* FFT Bitrev tables */ for (k=0;k<=mode->mdct.maxshift;k++) { @@ -183,6 +191,13 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes) fprintf (file, "}, /* factors */\n"); fprintf (file, "fft_bitrev%d, /* bitrev */\n", mode->mdct.kfft[k]->nfft); fprintf (file, "fft_twidd...

...;},%c", mode->mdct.kfft[0]->twiddles[j].r, mode->mdct.kfft[0]->twiddles[j].i,(j+3)%2==0?'\n':' '); fprintf (file, "};\n"); +#ifdef OVERRIDE_FFT + dump_mode_arch(mode); +#endif /* FFT Bitrev tables */ for (k=0;k<=mode->mdct.maxshift;k++) { @@ -183,6 +191,13 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes) fprintf (file, "}, /* factors */\n"); fprintf (file, "fft_bitrev%d, /* bitrev */\n", mode->mdct.kfft[k]->nfft); fprintf (file, "fft_twidd...

...;},%c", mode->mdct.kfft[0]->twiddles[j].r, mode->mdct.kfft[0]->twiddles[j].i,(j+3)%2==0?'\n':' '); fprintf (file, "};\n"); +#ifdef OVERRIDE_FFT + dump_mode_arch(mode); +#endif /* FFT Bitrev tables */ for (k=0;k<=mode->mdct.maxshift;k++) { @@ -183,6 +191,13 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes) fprintf (file, "}, /* factors */\n"); fprintf (file, "fft_bitrev%d, /* bitrev */\n", mode->mdct.kfft[k]->nfft); fprintf (file, "fft_twidd...

Changes from RFC PATCH v3 - Just rebased on tip - For all else, please see notes from RFC PATCH v3 at http://lists.xiph.org/pipermail/opus/2015-March/002902.html - latest wip opus tree/branch https://git.linaro.org/people/viswanath.puttagunta/Ne10.git branch: rfcv4_final_fft_ne10 Viswanath Puttagunta (1): armv7(float): Optimize encode usecase using NE10 library Makefile.am

Changes from RFC PATCH v1: - passing arch parameter explicitly - reduced stack usage by ~3.5K by using scaled NE10 fft version - moved all optimization array functions to arm_celt_map.c - Other cleanups pointed out by Timothy Phil, As you mentioned earlier, could you please address all compile and linker errors/warnings coming out of Ne10 library? You can find my working Ne10 repo at [1] You

Changes from RFC PATCH v2 - fixed compile issue when just compiling for --enable-intrinsics for ARMv7 without NE10 - Notes for NE10: - All compile/link warnings are now in upstream NE10 - Only patch pending upstream in NE10 is the one that needs to add -funsafe-math-optimizations for ARMv7 targets. - Phil Wang @ ARM is working on getting this fixed. - Note that even without

...*mode) fprintf(file, "#ifndef NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize); fprintf(file, "#define NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize); - ne10_fft_cfg_float32_t cfg; + NE10_FFT_CFG_TYPE_T cfg; /* cfg->factors */ for(k=0;k<=mode->mdct.maxshift;k++) { - cfg = (ne10_fft_cfg_float32_t)mode->mdct.kfft[k]->arch_fft->priv; + cfg = (NE10_FFT_CFG_TYPE_T)mode->mdct.kfft[k]->arch_fft->priv; if (!cfg) continue; fprintf(file, "static const ne10_int32_t ne10_factors_%d[%d] = {\n", @@ -79,1...

...f(file, "#ifndef NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize); + fprintf(file, "#define NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize); + printf("Printing ne10 values\n"); + ne10_fft_cfg_float32_t cfg; + /* cfg->factors */ + for(k=0;k<=mode->mdct.maxshift;k++) { + fprintf(file, "static const ne10_int32_t ne10_factors_%d[%d] = {\n", + mode->mdct.kfft[k]->nfft, (NE10_MAXFACTORS * 2)); + for(j=0;j<(NE10_MAXFACTORS * 2);j++) { + cfg = (ne10_fft_cfg_float32_t)mode->mdct.kfft[k]->priv; +...

Hello opus-dev, I've been cooking up this patchset to integrate NE10 library into opus. Current patchset focuses on encode use case mainly effecting performance of clt_mdct_forward() and opus_fft() (for float only) Glad to report the following on Encode use case: (Measured on my Beaglebone Black Cortex-A8 board) - Performance improvement for encode use case ~= 12.34% (Based on time -p

Hi All, As per Timothy's suggestion, disabling mdct_forward for fixed point. Only effects armv7,armv8: Extend fixed fft NE10 optimizations to mdct Rest of patches are same as in [1] For reference, latest wip code for opus is at [2] Still working with NE10 team at ARM to get corner cases of mdct_forward. Will update with another patch when issue in NE10 gets fixed. Regards, Vish [1]:

Hi All, Changes from RFC v2 [1] armv7,armv8: Extend fixed fft NE10 optimizations to mdct - Overflow issue fixed by Phil at ARM. Ne10 wip at [2]. Should be upstream soon. - So, re-enabled using fixed fft for mdct_forward which was disabled in RFCv2 armv7,armv8: Optimize fixed point fft using NE10 library - Thanks to Jonathan Lennox, fixed some build fixes on iOS and some copy-paste errors Rest

Hello Timothy / Jean-Marc / opus-dev, This patch series is follow up on work I posted on [1]. In addition to what was posted on [1], this patch series mainly integrates Fixed point FFT implementations in NE10 library into opus. You can view my opus wip code at [2]. Note that while I found some issues both with the NE10 library(fixed fft) and with Linaro toolchain (armv8 intrinsics), the work

Hi All, Since I continue to base my work on top of Jonathan's patch, and my previous Ne10 fft/ifft/mdct_forward/backward patches, I thought it would be better to just post all new patches as a patch series. Please let me know if anyone disagrees with this approach. You can see wip branch of all latest patches at https://git.linaro.org/people/viswanath.puttagunta/opus.git Branch:

Hi Timothy, As I mentioned earlier [1], I now fixed compile issues with fixed point and resubmitting the patch. I also have new patch that does intrinsics optimizations for celt_pitch_xcorr targetting aarch64. You can find my latest work-in-progress branch at [2] For reference, you can use the Ne10 pre-built libraries at [3] Note that I am working with Phil at ARM to get my patch at [4]

From: David Vrabel <david.vrabel@citrix.com> The high resolution timer code gets notified of step changes to the system time with clock_was_set() or clock_was_set_delayed() calls. If other parts of the kernel require similar notification there is no clear place to hook into. Add a clock_was_set atomic notifier chain (clock_was_set_notifier_list) and call this in place of clock_was_set().