tests: add gem_tiled_swapping

Also add a drmtest_exchange_int helper, might come handy at other
places.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/lib/drmtest.c b/lib/drmtest.c
index cc94641..b2ac762 100644 (file)
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -333,6 +333,16 @@ void drmtest_stop_signal_helper(void)
 }
 
 /* other helpers */
+void drmtest_exchange_int(void *array, unsigned i, unsigned j)
+{
+       int *int_arr, tmp;
+       int_arr = array;
+
+       tmp = int_arr[i];
+       int_arr[i] = int_arr[j];
+       int_arr[j] = tmp;
+}
+
 void drmtest_permute_array(void *array, unsigned size,
                           void (*exchange_func)(void *array,
                                                 unsigned i,

diff --git a/lib/drmtest.h b/lib/drmtest.h
index 23d6f08..90d81e7 100644 (file)
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -55,6 +55,7 @@ uint64_t gem_mappable_aperture_size(void);
 /* generally useful helpers */
 void drmtest_fork_signal_helper(void);
 void drmtest_stop_signal_helper(void);
+void drmtest_exchange_int(void *array, unsigned i, unsigned j);
 void drmtest_permute_array(void *array, unsigned size,
                           void (*exchange_func)(void *array,
                                                 unsigned i,

diff --git a/tests/.gitignore b/tests/.gitignore
index a8f7032..d8be302 100644 (file)
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -41,6 +41,7 @@ gem_tiled_blits
 gem_tiled_fence_blits
 gem_tiled_pread
 gem_tiled_pread_pwrite
+gem_tiled_swapping
 gem_unref_active_buffers
 gem_vmap_blits
 gen3_mixed_blits

diff --git a/tests/Makefile.am b/tests/Makefile.am
index ad7f498..6e169de 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -22,6 +22,7 @@ TESTS_progs = \
        gem_pread_after_blit \
        gem_tiled_pread \
        gem_tiled_pread_pwrite \
+       gem_tiled_swapping \
        gem_partial_pwrite_pread \
        gem_linear_blits \
        gem_vmap_blits \

diff --git a/tests/gem_tiled_swapping.c b/tests/gem_tiled_swapping.c
new file mode 100644 (file)
index 0000000..1af3652
--- /dev/null
+++ b/tests/gem_tiled_swapping.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ * Authors:
+ *    Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ */
+
+/** @file gem_tiled_pread_pwrite.c
+ *
+ * This is a test of pread's behavior on tiled objects with respect to the
+ * reported swizzling value.
+ *
+ * The goal is to exercise the slow_bit17_copy path for reading on bit17
+ * machines, but will also be useful for catching swizzling value bugs on
+ * other systems.
+ */
+
+/*
+ * Testcase: Exercise swizzle code for swapping
+ *
+ * The swizzle checks in the swapin path are at a different place than the ones
+ * for pread/pwrite, so we need to check them separately.
+ *
+ * This test obviously needs swap present (and exits if none is detected).
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "intel_gpu_tools.h"
+
+#define WIDTH 512
+#define HEIGHT 512
+static uint32_t linear[WIDTH * HEIGHT];
+static uint32_t current_tiling_mode;
+
+#define PAGE_SIZE 4096
+
+static uint32_t
+create_bo_and_fill(int fd)
+{
+       uint32_t handle;
+       uint32_t *data;
+       int i;
+
+       handle = gem_create(fd, sizeof(linear));
+       gem_set_tiling(fd, handle, current_tiling_mode, WIDTH * sizeof(uint32_t));
+
+       /* Fill the BO with dwords starting at start_val */
+       data = gem_mmap(fd, handle, sizeof(linear), PROT_READ | PROT_WRITE);
+       for (i = 0; i < WIDTH*HEIGHT; i++)
+               data[i] = i;
+       munmap(data, sizeof(linear));
+
+       return handle;
+}
+
+uint32_t *bo_handles;
+int *idx_arr;
+
+int
+main(int argc, char **argv)
+{
+       int fd;
+       uint32_t *data;
+       int i, j;
+       int count;
+       current_tiling_mode = I915_TILING_X;
+
+       fd = drm_open_any();
+       /* need slightly more than total ram */
+       count = intel_get_total_ram_mb() * 11 / 10;
+       bo_handles = calloc(count, sizeof(uint32_t));
+       assert(bo_handles);
+
+       idx_arr = calloc(count, sizeof(int));
+       assert(idx_arr);
+
+       if (intel_get_total_swap_mb() == 0) {
+               printf("no swap detected\n");
+               return 77;
+       }
+
+       for (i = 0; i < count; i++)
+               bo_handles[i] = create_bo_and_fill(fd);
+
+       for (i = 0; i < count; i++)
+               idx_arr[i] = i;
+
+       drmtest_permute_array(idx_arr, count,
+                             drmtest_exchange_int);
+
+       for (i = 0; i < count/2; i++) {
+               /* Check the target bo's contents. */
+               data = gem_mmap(fd, bo_handles[idx_arr[i]],
+                               sizeof(linear), PROT_READ | PROT_WRITE);
+               for (j = 0; j < WIDTH*HEIGHT; j++)
+                       if (data[j] != j) {
+                               fprintf(stderr, "mismatch at %i: %i\n",
+                                               j, data[j]);
+                               exit(1);
+                       }
+               munmap(data, sizeof(linear));
+       }
+
+       close(fd);
+
+       return 0;
+}