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riscv-gcc-1
Commit f49278e6 by Richard Henderson Committed by Richard Henderson
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Set cache parameters for alpha 

From-SVN: r188794
parent 70f42967
Showing with 59 additions and 17 deletions
gcc/ChangeLog
2012-06-19 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c: Include params.h.
(alpha_option_override): Initialize PARAM_L1_CACHE_LINE_SIZE,
PARAM_L1_CACHE_SIZE, PARAM_L2_CACHE_SIZE for the cpu tuning.
2012-06-19 Steven Bosscher <steven@gcc.gnu.org> 2012-06-19 Steven Bosscher <steven@gcc.gnu.org>
* doc/tm.texi.in (TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE, * doc/tm.texi.in (TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE,
......
gcc/config/alpha/alpha.c
...@@ -57,6 +57,7 @@ along with GCC; see the file COPYING3. If not see ...@@ -57,6 +57,7 @@ along with GCC; see the file COPYING3. If not see
#include "df.h" #include "df.h"
#include "libfuncs.h" #include "libfuncs.h"
#include "opts.h" #include "opts.h"
#include "params.h"
/* Specify which cpu to schedule for. */ /* Specify which cpu to schedule for. */
enum processor_type alpha_tune; enum processor_type alpha_tune;
...@@ -224,24 +225,40 @@ alpha_option_override (void) ...@@ -224,24 +225,40 @@ alpha_option_override (void)
const char *const name; const char *const name;
const enum processor_type processor; const enum processor_type processor;
const int flags; const int flags;
const unsigned short line_size; /* in bytes */
const unsigned short l1_size; /* in kb. */
const unsigned short l2_size; /* in kb. */
} cpu_table[] = { } cpu_table[] = {
{ "ev4", PROCESSOR_EV4, 0 }, /* EV4/LCA45 had 8k L1 caches; EV45 had 16k L1 caches.
{ "ev45", PROCESSOR_EV4, 0 }, EV4/EV45 had 128k to 16M 32-byte direct Bcache. LCA45
{ "21064", PROCESSOR_EV4, 0 }, had 64k to 8M 8-byte direct Bcache. */
{ "ev5", PROCESSOR_EV5, 0 }, { "ev4", PROCESSOR_EV4, 0, 32, 8, 8*1024 },
{ "21164", PROCESSOR_EV5, 0 }, { "21064", PROCESSOR_EV4, 0, 32, 8, 8*1024 },
{ "ev56", PROCESSOR_EV5, MASK_BWX }, { "ev45", PROCESSOR_EV4, 0, 32, 16, 16*1024 },
{ "21164a", PROCESSOR_EV5, MASK_BWX },
{ "pca56", PROCESSOR_EV5, MASK_BWX|MASK_MAX }, /* EV5 or EV56 had 8k 32 byte L1, 96k 32 or 64 byte L2,
{ "21164PC",PROCESSOR_EV5, MASK_BWX|MASK_MAX }, and 1M to 16M 64 byte L3 (not modeled).
{ "21164pc",PROCESSOR_EV5, MASK_BWX|MASK_MAX }, PCA56 had 16k 64-byte cache; PCA57 had 32k Icache.
{ "ev6", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX }, PCA56 had 8k 64-byte cache; PCA57 had 16k Dcache. */
{ "21264", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX }, { "ev5", PROCESSOR_EV5, 0, 32, 8, 96 },
{ "ev67", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX }, { "21164", PROCESSOR_EV5, 0, 32, 8, 96 },
{ "21264a", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX } { "ev56", PROCESSOR_EV5, MASK_BWX, 32, 8, 96 },
{ "21164a", PROCESSOR_EV5, MASK_BWX, 32, 8, 96 },
{ "pca56", PROCESSOR_EV5, MASK_BWX|MASK_MAX, 64, 16, 4*1024 },
{ "21164PC",PROCESSOR_EV5, MASK_BWX|MASK_MAX, 64, 16, 4*1024 },
{ "21164pc",PROCESSOR_EV5, MASK_BWX|MASK_MAX, 64, 16, 4*1024 },
/* EV6 had 64k 64 byte L1, 1M to 16M Bcache. */
{ "ev6", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX, 64, 64, 16*1024 },
{ "21264", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX, 64, 64, 16*1024 },
{ "ev67", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX,
64, 64, 16*1024 },
{ "21264a", PROCESSOR_EV6, MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX,
64, 64, 16*1024 }
}; };
int const ct_size = ARRAY_SIZE (cpu_table); int const ct_size = ARRAY_SIZE (cpu_table);
int line_size = 0, l1_size = 0, l2_size = 0;
int i; int i;
#ifdef SUBTARGET_OVERRIDE_OPTIONS #ifdef SUBTARGET_OVERRIDE_OPTIONS
...@@ -314,9 +331,12 @@ alpha_option_override (void) ...@@ -314,9 +331,12 @@ alpha_option_override (void)
for (i = 0; i < ct_size; i++) for (i = 0; i < ct_size; i++)
if (! strcmp (alpha_cpu_string, cpu_table [i].name)) if (! strcmp (alpha_cpu_string, cpu_table [i].name))
{ {
alpha_tune = alpha_cpu = cpu_table [i].processor; alpha_tune = alpha_cpu = cpu_table[i].processor;
line_size = cpu_table[i].line_size;
l1_size = cpu_table[i].l1_size;
l2_size = cpu_table[i].l2_size;
target_flags &= ~ (MASK_BWX | MASK_MAX | MASK_FIX | MASK_CIX); target_flags &= ~ (MASK_BWX | MASK_MAX | MASK_FIX | MASK_CIX);
target_flags |= cpu_table [i].flags; target_flags |= cpu_table[i].flags;
break; break;
} }
if (i == ct_size) if (i == ct_size)
...@@ -328,13 +348,29 @@ alpha_option_override (void) ...@@ -328,13 +348,29 @@ alpha_option_override (void)
for (i = 0; i < ct_size; i++) for (i = 0; i < ct_size; i++)
if (! strcmp (alpha_tune_string, cpu_table [i].name)) if (! strcmp (alpha_tune_string, cpu_table [i].name))
{ {
alpha_tune = cpu_table [i].processor; alpha_tune = cpu_table[i].processor;
line_size = cpu_table[i].line_size;
l1_size = cpu_table[i].l1_size;
l2_size = cpu_table[i].l2_size;
break; break;
} }
if (i == ct_size) if (i == ct_size)
error ("bad value %qs for -mtune switch", alpha_tune_string); error ("bad value %qs for -mtune switch", alpha_tune_string);
} }
if (line_size)
maybe_set_param_value (PARAM_L1_CACHE_LINE_SIZE, line_size,
global_options.x_param_values,
global_options_set.x_param_values);
if (l1_size)
maybe_set_param_value (PARAM_L1_CACHE_SIZE, l1_size,
global_options.x_param_values,
global_options_set.x_param_values);
if (l2_size)
maybe_set_param_value (PARAM_L2_CACHE_SIZE, l2_size,
global_options.x_param_values,
global_options_set.x_param_values);
/* Do some sanity checks on the above options. */ /* Do some sanity checks on the above options. */
if ((alpha_fptm == ALPHA_FPTM_SU || alpha_fptm == ALPHA_FPTM_SUI) if ((alpha_fptm == ALPHA_FPTM_SU || alpha_fptm == ALPHA_FPTM_SUI)
......
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