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/* libpaf-dsc test suite.
*
* Copyright IBM Corp. 2013
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Contributors:
* IBM Corporation, Edjunior Barbosa Machado - Initial implementation.
*/
#include <stdio.h>
#include <errno.h>
#include <inttypes.h>
#include <paf/dsc.h>
int main(void)
{
uint64_t dscr, dscr_support;
if ((dscr_support = paf_dsc_check_support()) == 0)
{
if (errno == ENOSYS)
{
fprintf(stderr, "DSCR not available.\n");
return 0;
}
else
{
perror("Error checking DSCR availability.");
return -1;
}
}
if ((paf_dsc_get(&dscr)) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
dscr = DSCR_DPFD_SET(dscr, DSCR_DPFD_MAX);
/* DSCR_DPFD is available since ISA 2.05 */
if ((dscr_support | dscr) != dscr_support)
{
fprintf(stderr, "DSCR_DPFD feature was supposed to be available (it is provided since DSCR initial support on ISA 2.05).\n");
return -1;
}
else
{
uint64_t dscr_aux;
if (paf_dsc_set(dscr) < 0)
{
perror("Cannot set DSCR_DPFD field.");
return -1;
}
if (paf_dsc_get(&dscr_aux) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
if (dscr != dscr_aux)
{
fprintf(stderr, "DSCR_DPFD_MAX not set properly (returned 0x%" PRIx64 ").\n", dscr_aux);
return -1;
}
}
/* DSCR_LSD is available since ISA 2.06 */
if ((dscr_support | DSCR_LSD) != dscr_support)
fprintf(stderr, "DSCR_LSD flag is not supported (available only in ISA 2.06 and newer).\n");
else
{
if (paf_dsc_set(dscr | DSCR_LSD) < 0)
{
perror("Cannot set DSCR_LSD flag.");
return -1;
}
if (paf_dsc_get(&dscr) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
if ((dscr & DSCR_LSD) != DSCR_LSD)
{
fprintf(stderr, "DSCR_LSD not set (returned 0x%" PRIx64 ").\n", dscr);
return -1;
}
}
dscr = DSCR_URG_SET(dscr, 7);
/* DSCR_URG available only in ISA 2.06+ */
if ((dscr_support | dscr) != dscr_support)
fprintf(stderr, "DSCR_URG feature is not supported (available in ISA 2.06+ and newer).\n");
else
{
uint64_t dscr_aux;
if (paf_dsc_set(dscr) < 0)
{
perror("Cannot set DSCR_URG field.");
return -1;
}
if (paf_dsc_get(&dscr_aux) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
if (dscr_aux != dscr)
{
fprintf(stderr, "DSCR_URG not set properly (returned 0x%" PRIx64 ").\n", dscr_aux);
return -1;
}
}
/* DSCR_HWUE available only in ISA 2.07 */
if ((dscr_support | DSCR_HWUE) != dscr_support)
fprintf(stderr, "DSCR_HWUE flag is not supported (available only in ISA 2.07).\n");
else
{
if (paf_dsc_set(dscr | DSCR_HWUE) < 0)
{
perror("Cannot set DSCR_HWUE flag (available only in ISA 2.07).\n");
return -1;
}
if (paf_dsc_get(&dscr) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
if ((dscr & DSCR_HWUE) != DSCR_HWUE)
{
fprintf(stderr, "DSCR_HWUE not set (returned 0x%" PRIx64 ").\n", dscr);
return -1;
}
}
/* disable DSCR */
if (paf_dsc_set(0) < 0)
{
fprintf(stderr, "Cannot fully disable DSCR.\n");
return -1;
}
if (paf_dsc_get(&dscr) < 0)
{
perror("Cannot get dscr value.");
return -1;
}
if (dscr != 0)
{
fprintf(stderr, "DSCR is not fully disabled (returned 0x%" PRIx64 ").\n", dscr);
return -1;
}
return 0;
}
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