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libavcodec/ppc/dsputil_ppc.h

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00001 /*
00002  * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
00003  *
00004  * This file is part of FFmpeg.
00005  *
00006  * FFmpeg is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * FFmpeg is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with FFmpeg; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00019  */
00020 
00021 #ifndef AVCODEC_PPC_DSPUTIL_PPC_H
00022 #define AVCODEC_PPC_DSPUTIL_PPC_H
00023 
00024 #include "config.h"
00025 
00026 #if CONFIG_POWERPC_PERF
00027 void powerpc_display_perf_report(void);
00028 /* the 604* have 2, the G3* have 4, the G4s have 6,
00029    and the G5 are completely different (they MUST use
00030    ARCH_PPC64, and let's hope all future 64 bis PPC
00031    will use the same PMCs... */
00032 #define POWERPC_NUM_PMC_ENABLED 6
00033 /* if you add to the enum below, also add to the perfname array
00034    in dsputil_ppc.c */
00035 enum powerpc_perf_index {
00036     altivec_fft_num = 0,
00037     altivec_gmc1_num,
00038     altivec_dct_unquantize_h263_num,
00039     altivec_fdct,
00040     altivec_idct_add_num,
00041     altivec_idct_put_num,
00042     altivec_put_pixels16_num,
00043     altivec_avg_pixels16_num,
00044     altivec_avg_pixels8_num,
00045     altivec_put_pixels8_xy2_num,
00046     altivec_put_no_rnd_pixels8_xy2_num,
00047     altivec_put_pixels16_xy2_num,
00048     altivec_put_no_rnd_pixels16_xy2_num,
00049     altivec_hadamard8_diff8x8_num,
00050     altivec_hadamard8_diff16_num,
00051     altivec_avg_pixels8_xy2_num,
00052     powerpc_clear_blocks_dcbz32,
00053     powerpc_clear_blocks_dcbz128,
00054     altivec_put_h264_chroma_mc8_num,
00055     altivec_avg_h264_chroma_mc8_num,
00056     altivec_put_h264_qpel16_h_lowpass_num,
00057     altivec_avg_h264_qpel16_h_lowpass_num,
00058     altivec_put_h264_qpel16_v_lowpass_num,
00059     altivec_avg_h264_qpel16_v_lowpass_num,
00060     altivec_put_h264_qpel16_hv_lowpass_num,
00061     altivec_avg_h264_qpel16_hv_lowpass_num,
00062     powerpc_perf_total
00063 };
00064 enum powerpc_data_index {
00065     powerpc_data_min = 0,
00066     powerpc_data_max,
00067     powerpc_data_sum,
00068     powerpc_data_num,
00069     powerpc_data_total
00070 };
00071 extern unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][powerpc_data_total];
00072 
00073 #if !ARCH_PPC64
00074 #define POWERP_PMC_DATATYPE unsigned long
00075 #define POWERPC_GET_PMC1(a) __asm__ volatile("mfspr %0, 937" : "=r" (a))
00076 #define POWERPC_GET_PMC2(a) __asm__ volatile("mfspr %0, 938" : "=r" (a))
00077 #if (POWERPC_NUM_PMC_ENABLED > 2)
00078 #define POWERPC_GET_PMC3(a) __asm__ volatile("mfspr %0, 941" : "=r" (a))
00079 #define POWERPC_GET_PMC4(a) __asm__ volatile("mfspr %0, 942" : "=r" (a))
00080 #else
00081 #define POWERPC_GET_PMC3(a) do {} while (0)
00082 #define POWERPC_GET_PMC4(a) do {} while (0)
00083 #endif
00084 #if (POWERPC_NUM_PMC_ENABLED > 4)
00085 #define POWERPC_GET_PMC5(a) __asm__ volatile("mfspr %0, 929" : "=r" (a))
00086 #define POWERPC_GET_PMC6(a) __asm__ volatile("mfspr %0, 930" : "=r" (a))
00087 #else
00088 #define POWERPC_GET_PMC5(a) do {} while (0)
00089 #define POWERPC_GET_PMC6(a) do {} while (0)
00090 #endif
00091 #else /* ARCH_PPC64 */
00092 #define POWERP_PMC_DATATYPE unsigned long long
00093 #define POWERPC_GET_PMC1(a) __asm__ volatile("mfspr %0, 771" : "=r" (a))
00094 #define POWERPC_GET_PMC2(a) __asm__ volatile("mfspr %0, 772" : "=r" (a))
00095 #if (POWERPC_NUM_PMC_ENABLED > 2)
00096 #define POWERPC_GET_PMC3(a) __asm__ volatile("mfspr %0, 773" : "=r" (a))
00097 #define POWERPC_GET_PMC4(a) __asm__ volatile("mfspr %0, 774" : "=r" (a))
00098 #else
00099 #define POWERPC_GET_PMC3(a) do {} while (0)
00100 #define POWERPC_GET_PMC4(a) do {} while (0)
00101 #endif
00102 #if (POWERPC_NUM_PMC_ENABLED > 4)
00103 #define POWERPC_GET_PMC5(a) __asm__ volatile("mfspr %0, 775" : "=r" (a))
00104 #define POWERPC_GET_PMC6(a) __asm__ volatile("mfspr %0, 776" : "=r" (a))
00105 #else
00106 #define POWERPC_GET_PMC5(a) do {} while (0)
00107 #define POWERPC_GET_PMC6(a) do {} while (0)
00108 #endif
00109 #endif /* ARCH_PPC64 */
00110 #define POWERPC_PERF_DECLARE(a, cond)       \
00111     POWERP_PMC_DATATYPE                     \
00112         pmc_start[POWERPC_NUM_PMC_ENABLED], \
00113         pmc_stop[POWERPC_NUM_PMC_ENABLED],  \
00114         pmc_loop_index;
00115 #define POWERPC_PERF_START_COUNT(a, cond) do { \
00116     POWERPC_GET_PMC6(pmc_start[5]); \
00117     POWERPC_GET_PMC5(pmc_start[4]); \
00118     POWERPC_GET_PMC4(pmc_start[3]); \
00119     POWERPC_GET_PMC3(pmc_start[2]); \
00120     POWERPC_GET_PMC2(pmc_start[1]); \
00121     POWERPC_GET_PMC1(pmc_start[0]); \
00122     } while (0)
00123 #define POWERPC_PERF_STOP_COUNT(a, cond) do { \
00124     POWERPC_GET_PMC1(pmc_stop[0]);            \
00125     POWERPC_GET_PMC2(pmc_stop[1]);            \
00126     POWERPC_GET_PMC3(pmc_stop[2]);            \
00127     POWERPC_GET_PMC4(pmc_stop[3]);            \
00128     POWERPC_GET_PMC5(pmc_stop[4]);            \
00129     POWERPC_GET_PMC6(pmc_stop[5]);            \
00130     if (cond) {                               \
00131         for(pmc_loop_index = 0;               \
00132             pmc_loop_index < POWERPC_NUM_PMC_ENABLED; \
00133             pmc_loop_index++) {               \
00134             if (pmc_stop[pmc_loop_index] >= pmc_start[pmc_loop_index]) {  \
00135                 POWERP_PMC_DATATYPE diff =                                \
00136                   pmc_stop[pmc_loop_index] - pmc_start[pmc_loop_index];   \
00137                 if (diff < perfdata[pmc_loop_index][a][powerpc_data_min]) \
00138                     perfdata[pmc_loop_index][a][powerpc_data_min] = diff; \
00139                 if (diff > perfdata[pmc_loop_index][a][powerpc_data_max]) \
00140                     perfdata[pmc_loop_index][a][powerpc_data_max] = diff; \
00141                 perfdata[pmc_loop_index][a][powerpc_data_sum] += diff;    \
00142                 perfdata[pmc_loop_index][a][powerpc_data_num] ++;         \
00143             }                                 \
00144         }                                     \
00145     }                                         \
00146 } while (0)
00147 #else /* CONFIG_POWERPC_PERF */
00148 // those are needed to avoid empty statements.
00149 #define POWERPC_PERF_DECLARE(a, cond)        int altivec_placeholder __attribute__ ((unused))
00150 #define POWERPC_PERF_START_COUNT(a, cond)    do {} while (0)
00151 #define POWERPC_PERF_STOP_COUNT(a, cond)     do {} while (0)
00152 #endif /* CONFIG_POWERPC_PERF */
00153 
00154 #endif /*  AVCODEC_PPC_DSPUTIL_PPC_H */

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