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-rw-r--r--tests/general/ppgtt_memory_alignment.c124
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diff --git a/tests/general/ppgtt_memory_alignment.c b/tests/general/ppgtt_memory_alignment.c
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+++ b/tests/general/ppgtt_memory_alignment.c
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+/*
+ * Copyright © 2018 Sergii Romantsov (<sergii.romantsov@gmail.com>)
+ *
+ * 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.
+ *
+ * Created on: Oct 11, 2018
+ * Author: Sergii Romantsov
+ *
+ * Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106997
+ * Tests: 24839663a402 (intel/ppgtt: memory address alignment)
+ * Tests: a363bb2cd0e2 (i965: Allocate VMA in userspace for full-PPGTT systems.)
+ */
+
+
+#include "piglit-util-gl.h"
+#include "unistd.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+ config.requires_displayed_window = true;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static enum piglit_result g_result = PIGLIT_FAIL;
+static GLuint g_cur_size = 0;
+static GLubyte *g_buffer = NULL;
+
+static void
+free_buffer(void)
+{
+ if (g_buffer)
+ {
+ free(g_buffer);
+ g_buffer = NULL;
+ }
+}
+
+static void
+test_fail_check(void)
+{
+ /* Intel: Function is needed to check fail-status of execution:
+ * currently if batch-buffer wasn't submitted than Mesa will exit application.
+ * Otherwise piglit_display has logic to detect fail across call glGetError.
+ */
+ if (g_result != PIGLIT_PASS)
+ {
+ fprintf(stderr, "Test failed for buffer size: %x \n", g_cur_size);
+ free_buffer();
+ piglit_report_result(g_result);
+ }
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ /* Maximal value of cache-size supported by driver */
+ const GLsizei cache_max_size = 64 * 1024 * 1024;
+ const GLsizei cache_extra_size = cache_max_size * 16;
+ const unsigned int page_size = getpagesize();
+ const GLsizei size_inconsistency = page_size / 4 + 1;
+ GLsizei size = 0;
+ GLuint buf;
+ bool is_error = false;
+
+ if (!g_buffer)
+ g_buffer = calloc(sizeof(GLubyte), cache_extra_size);
+
+ glClearColor(0.5, 0.5, 0.5, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glGenBuffers(1, &buf);
+ glBindBuffer(GL_ARRAY_BUFFER, buf);
+
+ while (size < cache_extra_size)
+ {
+ glBufferData(GL_ARRAY_BUFFER, g_cur_size, g_buffer, GL_STATIC_DRAW);
+ glVertexAttribPointer(0, 3, GL_UNSIGNED_BYTE, GL_FALSE, 0, 0);
+ glEnableVertexAttribArray(0);
+
+ glDrawArrays(GL_TRIANGLES, 0, 1);
+ if (glGetError() != GL_NO_ERROR)
+ is_error = true;
+
+ g_cur_size = size + size_inconsistency;
+ size = size ? size * 2 : page_size;
+
+ glFlush();
+ if (glGetError() != GL_NO_ERROR)
+ is_error = true;
+ }
+
+ glDeleteBuffers(1, &buf);
+
+ free_buffer();
+
+ g_result = is_error ? PIGLIT_FAIL : PIGLIT_PASS;
+ return g_result;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ atexit(test_fail_check);
+}