Add hugepage tests to dma dir

Signed-off-by: Jeremy Kerr <[email protected]>
linuxppc · Sep 26, 2007 · d5a89ff · d5a89ff
1 parent 3a91bf0
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diff --git a/tests/14-dma/03-hugepage-spe-faulted.c b/tests/14-dma/03-hugepage-spe-faulted.c
@@ -0,0 +1,155 @@
+/*
+ * Testsuite for the Linux SPU filesystem
+ *
+ * Copyright (C) IBM Corporation, 2007
+ *
+ * Author: Jeremy Kerr <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#define _ATFILE_SOURCE
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include <test/spu_syscalls.h>
+#include <test/hw.h>
+
+#define HUGEPAGE_FILE "/huge/03-hugepage"
+#define HUGEPAGE_SIZE (16 * 1024 * 1024)
+
+/* map a hugepage, and DMA the (untouched) contents to the SPE. The SPE
+ * should trigger a class1 interrup that ends up with the hugepage being
+ * mapped */
+
+#if 0
+	/* area for PPE buffer address, stored in the first two words */
+	.long 0x0
+	.long 0x0
+	.long 0x0
+	.long 0x0
+
+start:
+	il	r0,0x1000	/* LS address		*/
+	lqa	r1,0		/* PPE address		*/
+	il	r2,0x1000	/* transfer size	*/
+	il	r3,0		/* tag group ID		*/
+	il	r4,0x40		/* command ('get')	*/
+
+	/* do dma */
+	wrch	ch16,r0
+	wrch	ch17,r1
+	shlqbyi	r1,r1,4
+	wrch	ch18,r1
+	wrch	ch19,r2
+	wrch	ch20,r3
+	wrch	ch21,r4
+
+	/* wait for completion */
+	il	r5,1	/* mask for tag 0 */
+	il	r6,1	/* 0x1: any completion */
+
+	wrch	ch22,r5
+	wrch	ch23,r6
+
+	rdch	r7,ch24
+	ceqi	r8,r5,1
+	brnz	r8,exit		/* error if our tag (1) isn't complete */
+	stop	0x0
+exit:
+	stop	0x1337
+
+#endif
+static uint32_t spe_program[] = {
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+/* start: */
+	0x40880000, /* il      r0,4096 # 1000         */
+	0x30800001, /* lqa     r1,0                   */
+	0x40880002, /* il      r2,4096 # 1000         */
+	0x40800003, /* il      r3,0                   */
+	0x40802004, /* il      r4,64   # 40           */
+	0x21a00800, /* wrch    $ch16,r0               */
+	0x21a00881, /* wrch    $ch17,r1               */
+	0x3fe10081, /* shlqbyi r1,r1,4                */
+	0x21a00901, /* wrch    $ch18,r1               */
+	0x21a00982, /* wrch    $ch19,r2               */
+	0x21a00a03, /* wrch    $ch20,r3               */
+	0x21a00a84, /* wrch    $ch21,r4               */
+	0x40800085, /* il      r5,1                   */
+	0x40800086, /* il      r6,1                   */
+	0x21a00b05, /* wrch    $ch22,r5               */
+	0x21a00b86, /* wrch    $ch23,r6               */
+	0x01a00c07, /* rdch    r7,$ch24               */
+	0x7c004288, /* ceqi    r8,r5,1                */
+	0x21000108, /* brnz    r8,60 <exit>    # 60   */
+	0x00000000, /* stop                           */
+/* exit: */
+	0x00001337, /* stop                           */
+};
+
+
+int main()
+{
+	int ls_fd, hp_fd, ctx, rc;
+	uint8_t *ls_map;
+	uint8_t *hp_map;
+	uint32_t entry;
+	char *name = "/spu/03-hugepage-spe-faulted";
+
+	ctx = spu_create(name, 0, 0755);
+	assert(ctx >= 0);
+
+	hp_fd = open(HUGEPAGE_FILE, O_RDWR | O_CREAT, 0600);
+	if (hp_fd < 0) {
+		perror("open");
+		fprintf(stderr, "failed to open %s. are hugepages enabled? "
+				"permissions?\n", HUGEPAGE_FILE);
+		return EXIT_FAILURE;
+	}
+	unlink(HUGEPAGE_FILE);
+
+	hp_map = mmap(NULL, HUGEPAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+			hp_fd, 0);
+	assert(hp_map != MAP_FAILED);
+
+	ls_fd = openat(ctx, "mem", O_RDWR);
+	assert(ls_fd >= 0);
+
+	ls_map = mmap(NULL, LS_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+			ls_fd, 0);
+	assert(ls_map != MAP_FAILED);
+
+	memcpy(ls_map, spe_program, sizeof(spe_program));
+
+	/* set the PPE address at the first 2 words of LS memory */
+	*((uint64_t *)(ls_map)) = (unsigned long)hp_map;
+
+	entry = 0x10;
+	rc = spu_run(ctx, &entry, NULL);
+
+	if (rc != 0x13370002) {
+		fprintf(stderr, "Incorrect stop code: 0x%x\n", rc);
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
diff --git a/tests/14-dma/04-hugepage-ppe-faulted.c b/tests/14-dma/04-hugepage-ppe-faulted.c
@@ -0,0 +1,164 @@
+/*
+ * Testsuite for the Linux SPU filesystem
+ *
+ * Copyright (C) IBM Corporation, 2007
+ *
+ * Author: Jeremy Kerr <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#define _ATFILE_SOURCE
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include <test/spu_syscalls.h>
+#include <test/hw.h>
+
+#include "pattern.h"
+
+#define HUGEPAGE_FILE "/huge/04-hugepage-ppe-faulted"
+#define HUGEPAGE_SIZE (16 * 1024 * 1024)
+
+/* Using hugepages, dma one page from the PPE to SPE, and compare the local
+ * store to the PPE buffer. */
+
+
+#if 0
+	/* area for PPE buffer address, stored in the first two words */
+	.long 0x0
+	.long 0x0
+	.long 0x0
+	.long 0x0
+
+start:
+	il	r0,0x1000	/* LS address		*/
+	lqa	r1,0		/* PPE address		*/
+	il	r2,0x1000	/* transfer size	*/
+	il	r3,0		/* tag group ID		*/
+	il	r4,0x40		/* command ('get')	*/
+
+	/* do dma */
+	wrch	ch16,r0
+	wrch	ch17,r1
+	shlqbyi	r1,r1,4
+	wrch	ch18,r1
+	wrch	ch19,r2
+	wrch	ch20,r3
+	wrch	ch21,r4
+
+	/* wait for completion */
+	il	r5,1	/* mask for tag 0 */
+	il	r6,1	/* 0x1: any completion */
+
+	wrch	ch22,r5
+	wrch	ch23,r6
+
+	rdch	r7,ch24
+	ceqi	r8,r5,1
+	brnz	r8,exit		/* error if our tag (1) isn't complete */
+	stop	0x0
+exit:
+	stop	0x1337
+
+#endif
+static uint32_t spe_program[] = {
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+	0x00000000, /* stop                           */
+/* start: */
+	0x40880000, /* il      r0,4096 # 1000         */
+	0x30800001, /* lqa     r1,0                   */
+	0x40880002, /* il      r2,4096 # 1000         */
+	0x40800003, /* il      r3,0                   */
+	0x40802004, /* il      r4,64   # 40           */
+	0x21a00800, /* wrch    $ch16,r0               */
+	0x21a00881, /* wrch    $ch17,r1               */
+	0x3fe10081, /* shlqbyi r1,r1,4                */
+	0x21a00901, /* wrch    $ch18,r1               */
+	0x21a00982, /* wrch    $ch19,r2               */
+	0x21a00a03, /* wrch    $ch20,r3               */
+	0x21a00a84, /* wrch    $ch21,r4               */
+	0x40800085, /* il      r5,1                   */
+	0x40800086, /* il      r6,1                   */
+	0x21a00b05, /* wrch    $ch22,r5               */
+	0x21a00b86, /* wrch    $ch23,r6               */
+	0x01a00c07, /* rdch    r7,$ch24               */
+	0x7c004288, /* ceqi    r8,r5,1                */
+	0x21000108, /* brnz    r8,60 <exit>    # 60   */
+	0x00000000, /* stop                           */
+/* exit: */
+	0x00001337, /* stop                           */
+};
+
+
+int main()
+{
+	int ls_fd, hp_fd, ctx, rc;
+	uint8_t *ls_map;
+	uint8_t *hp_map;
+	uint32_t entry;
+	char *name = "/spu/04-hugepage-ppe-faulted";
+
+	ctx = spu_create(name, 0, 0755);
+	assert(ctx >= 0);
+
+	hp_fd = open(HUGEPAGE_FILE, O_RDWR | O_CREAT, 0600);
+	if (hp_fd < 0) {
+		perror("open");
+		fprintf(stderr, "failed to open %s. are hugepages enabled? "
+				"permissions?\n", HUGEPAGE_FILE);
+		return EXIT_FAILURE;
+	}
+	unlink(HUGEPAGE_FILE);
+
+	hp_map = mmap(NULL, HUGEPAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+			hp_fd, 0);
+	assert(hp_map != MAP_FAILED);
+
+	load_pattern(hp_map, 0x1000);
+
+	ls_fd = openat(ctx, "mem", O_RDWR);
+	assert(ls_fd >= 0);
+
+	ls_map = mmap(NULL, LS_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+			ls_fd, 0);
+	assert(ls_map != MAP_FAILED);
+
+	memcpy(ls_map, spe_program, sizeof(spe_program));
+
+	/* set the PPE address at the first 2 words of LS memory */
+	*((uint64_t *)(ls_map)) = (unsigned long)hp_map;
+
+	entry = 0x10;
+	rc = spu_run(ctx, &entry, NULL);
+
+	if (rc != 0x13370002) {
+		fprintf(stderr, "Incorrect stop code: 0x%x\n", rc);
+		return EXIT_FAILURE;
+	}
+
+	if (check_pattern(ls_map + 0x1000, 0x1000)) {
+		fprintf(stderr, "Pattern check failed\n");
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
diff --git a/tests/14-dma/Makefile b/tests/14-dma/Makefile
@@ -18,7 +18,6 @@
 # along with this program; if not, write to the Free Software
 # Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
-obj += 01-spe-get 02-spe-put
+obj += 01-spe-get 02-spe-put 03-hugepage-spe-faulted 04-hugepage-ppe-faulted
 
-01-spe-get: 01-spe-get.o pattern.o
-02-spe-put: 02-spe-put.o pattern.o
+$(obj): pattern.o