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e45a2872fa
PMCs, and with Apple's CHUD it's fairly easy too. No reason to keep useless
code around
2) make the PPC perf stuff a configure option
3) make put_pixels16_altivec a bit faster by unrolling the loop by 4
patch by (Romain Dolbeau <dolbeau at irisa dot fr>)
Originally committed as revision 2022 to svn://svn.ffmpeg.org/ffmpeg/trunk
125 lines
4.7 KiB
C
125 lines
4.7 KiB
C
/*
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* Copyright (c) 2003 Romain Dolbeau <romain@dolbeau.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _DSPUTIL_PPC_
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#define _DSPUTIL_PPC_
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#ifdef CONFIG_DARWIN
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/* The Apple assembler shipped w/ gcc-3.3 knows about DCBZL, previous assemblers don't
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We assume here that the Darwin GCC is from Apple.... */
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#if (__GNUC__ * 100 + __GNUC_MINOR__ < 303)
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#define NO_DCBZL
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#endif
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#else /* CONFIG_DARWIN */
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/* I don't think any non-Apple assembler knows about DCBZL */
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#define NO_DCBZL
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#endif /* CONFIG_DARWIN */
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#ifdef POWERPC_PERFORMANCE_REPORT
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void powerpc_display_perf_report(void);
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/* the 604* have 2, the G3* have 4, the G4s have 6 */
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#define POWERPC_NUM_PMC_ENABLED 4
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/* if you add to the enum below, also add to the perfname array
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in dsputil_ppc.c */
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enum powerpc_perf_index {
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altivec_fft_num = 0,
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altivec_gmc1_num,
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altivec_dct_unquantize_h263_num,
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altivec_idct_add_num,
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altivec_idct_put_num,
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altivec_put_pixels16_num,
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altivec_avg_pixels16_num,
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altivec_avg_pixels8_num,
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altivec_put_pixels8_xy2_num,
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altivec_put_no_rnd_pixels8_xy2_num,
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altivec_put_pixels16_xy2_num,
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altivec_put_no_rnd_pixels16_xy2_num,
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powerpc_clear_blocks_dcbz32,
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powerpc_clear_blocks_dcbz128,
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powerpc_perf_total
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};
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enum powerpc_data_index {
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powerpc_data_min = 0,
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powerpc_data_max,
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powerpc_data_sum,
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powerpc_data_num,
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powerpc_data_total
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};
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extern unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][powerpc_data_total];
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#define POWERPC_GET_PMC1(a) asm volatile("mfspr %0, 937" : "=r" (a))
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#define POWERPC_GET_PMC2(a) asm volatile("mfspr %0, 938" : "=r" (a))
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#if (POWERPC_NUM_PMC_ENABLED > 2)
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#define POWERPC_GET_PMC3(a) asm volatile("mfspr %0, 941" : "=r" (a))
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#define POWERPC_GET_PMC4(a) asm volatile("mfspr %0, 942" : "=r" (a))
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#else
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#define POWERPC_GET_PMC3(a) do {} while (0)
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#define POWERPC_GET_PMC4(a) do {} while (0)
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#endif
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#if (POWERPC_NUM_PMC_ENABLED > 4)
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#define POWERPC_GET_PMC5(a) asm volatile("mfspr %0, 929" : "=r" (a))
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#define POWERPC_GET_PMC6(a) asm volatile("mfspr %0, 930" : "=r" (a))
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#else
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#define POWERPC_GET_PMC5(a) do {} while (0)
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#define POWERPC_GET_PMC6(a) do {} while (0)
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#endif
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#define POWERPC_PERF_DECLARE(a, cond) unsigned long pmc_start[POWERPC_NUM_PMC_ENABLED], pmc_stop[POWERPC_NUM_PMC_ENABLED], pmc_loop_index;
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#define POWERPC_PERF_START_COUNT(a, cond) do { \
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POWERPC_GET_PMC6(pmc_start[5]); \
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POWERPC_GET_PMC5(pmc_start[4]); \
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POWERPC_GET_PMC4(pmc_start[3]); \
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POWERPC_GET_PMC3(pmc_start[2]); \
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POWERPC_GET_PMC2(pmc_start[1]); \
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POWERPC_GET_PMC1(pmc_start[0]); \
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} while (0)
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#define POWERPC_PERF_STOP_COUNT(a, cond) do { \
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POWERPC_GET_PMC1(pmc_stop[0]); \
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POWERPC_GET_PMC2(pmc_stop[1]); \
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POWERPC_GET_PMC3(pmc_stop[2]); \
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POWERPC_GET_PMC4(pmc_stop[3]); \
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POWERPC_GET_PMC5(pmc_stop[4]); \
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POWERPC_GET_PMC6(pmc_stop[5]); \
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if (cond) \
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{ \
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for(pmc_loop_index = 0; \
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pmc_loop_index < POWERPC_NUM_PMC_ENABLED; \
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pmc_loop_index++) \
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{ \
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if (pmc_stop[pmc_loop_index] >= pmc_start[pmc_loop_index]) \
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{ \
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unsigned long diff = \
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pmc_stop[pmc_loop_index] - pmc_start[pmc_loop_index]; \
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if (diff < perfdata[pmc_loop_index][a][powerpc_data_min]) \
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perfdata[pmc_loop_index][a][powerpc_data_min] = diff; \
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if (diff > perfdata[pmc_loop_index][a][powerpc_data_max]) \
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perfdata[pmc_loop_index][a][powerpc_data_max] = diff; \
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perfdata[pmc_loop_index][a][powerpc_data_sum] += diff; \
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perfdata[pmc_loop_index][a][powerpc_data_num] ++; \
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} \
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} \
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} \
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} while (0)
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#else /* POWERPC_PERFORMANCE_REPORT */
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// those are needed to avoid empty statements.
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#define POWERPC_PERF_DECLARE(a, cond) int altivec_placeholder __attribute__ ((unused))
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#define POWERPC_PERF_START_COUNT(a, cond) do {} while (0)
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#define POWERPC_PERF_STOP_COUNT(a, cond) do {} while (0)
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#endif /* POWERPC_PERFORMANCE_REPORT */
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#endif /* _DSPUTIL_PPC_ */
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