[igt-dev] [PATCH i-g-t v2] tests/i915/gem_huc_copy: Enable a HuC copy test

["Robert M. Fosha" <robert.m.fosha@intel.com>]

From: Sally Qi <feng.qi@intel.com>

This test case loads the HuC copy firmware to copy the content of
the source buffer to the destination buffer.

v2: (Tony Ye)
 * Restructured some functions and files.
 * Defined the copy buffer size as 4K explicitly as the HuC Copy kernel
   always copy 4K bytes from src buffer to dst buffer.

v3: (Feng Qi, Antonio Argenziano, Tony Ye)
 * Restructured some functions as igt requested, exclude libdrm function call.
 * Remove huc function wrappers
 * Random initialize source input buffer

v4:
 * Fix autotools build failure.

Signed-off-by: Sally Qi <feng.qi@intel.com>
Signed-off-by: Tony Ye <tony.ye@intel.com>
Acked-by: Antonio Argenziano <antonio.argenziano@intel.com>
---
 lib/Makefile.sources      |   2 +
 lib/huc_copy.c            | 109 +++++++++++++++++++++++++++++++++++++
 lib/huc_copy.h            |  51 ++++++++++++++++++
 lib/intel_batchbuffer.c   |  20 +++++++
 lib/intel_batchbuffer.h   |  19 +++++++
 lib/meson.build           |   1 +
 tests/Makefile.sources    |   3 ++
 tests/i915/gem_huc_copy.c | 111 ++++++++++++++++++++++++++++++++++++++
 tests/meson.build         |   1 +
 9 files changed, 317 insertions(+)
 create mode 100644 lib/huc_copy.c
 create mode 100644 lib/huc_copy.h
 create mode 100644 tests/i915/gem_huc_copy.c

diff --git a/lib/Makefile.sources b/lib/Makefile.sources
index 5dd3962e..e9e132c1 100644
--- a/lib/Makefile.sources
+++ b/lib/Makefile.sources
@@ -78,6 +78,8 @@ lib_source_list =	 	\
 	ioctl_wrappers.h	\
 	media_fill.c		\
 	media_fill.h            \
+	huc_copy.c		\
+	huc_copy.h		\
 	media_spin.h		\
 	media_spin.c		\
 	gpgpu_fill.h		\
diff --git a/lib/huc_copy.c b/lib/huc_copy.c
new file mode 100644
index 00000000..32541157
--- /dev/null
+++ b/lib/huc_copy.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright © 2019 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.
+ *
+ */
+
+#include <i915_drm.h>
+#include "huc_copy.h"
+
+static void
+gen9_emit_huc_virtual_addr_state(struct drm_i915_gem_exec_object2 *src,
+		struct drm_i915_gem_exec_object2 *dst,
+		struct drm_i915_gem_relocation_entry *reloc_src,
+		struct drm_i915_gem_relocation_entry *reloc_dst,
+		uint32_t *buf,
+		int *i)
+{
+	buf[(*i)++] = HUC_VIRTUAL_ADDR_STATE;
+
+	for (int j = 0; j < HUC_VIRTUAL_ADDR_REGION_NUM; j++) {
+		if (j == HUC_VIRTUAL_ADDR_REGION_SRC) {
+			buf[(*i)++] = src->offset;
+
+			reloc_src->target_handle = src->handle;
+			reloc_src->delta = 0;
+			reloc_src->offset = (*i - 1) * sizeof(buf[0]);
+			reloc_src->read_domains = 0;
+			reloc_src->write_domain = 0;
+		} else if (j == HUC_VIRTUAL_ADDR_REGION_DST) {
+			buf[(*i)++] = dst->offset;
+
+			reloc_dst->target_handle = dst->handle;
+			reloc_dst->delta = 0;
+			reloc_dst->offset = (*i - 1) * sizeof(buf[0]);
+			reloc_dst->read_domains = 0;
+			reloc_dst->write_domain = I915_GEM_DOMAIN_RENDER;
+		} else {
+			buf[(*i)++] = 0;
+		}
+		buf[(*i)++] = 0;
+		buf[(*i)++] = 0;
+	}
+}
+
+void
+gen9_huc_copyfunc(int fd,
+		struct drm_i915_gem_exec_object2 *src,
+		struct drm_i915_gem_exec_object2 *dst,
+		struct drm_i915_gem_exec_object2 *exec)
+{
+	struct drm_i915_gem_relocation_entry reloc[2];
+	struct drm_i915_gem_execbuffer2 execbuf;
+	int i = 0;
+	uint32_t buf[63];
+
+	/* load huc kernel */
+	buf[i++] = HUC_IMEM_STATE;
+	buf[i++] = 0;
+	buf[i++] = 0;
+	buf[i++] = 0;
+	buf[i++] = 0x3;
+
+	buf[i++] = MFX_WAIT;
+	buf[i++] = MFX_WAIT;
+
+	buf[i++] = HUC_PIPE_MODE_SELECT;
+	buf[i++] = 0;
+	buf[i++] = 0;
+
+	buf[i++] = MFX_WAIT;
+
+	memset(reloc, 0, sizeof(reloc));
+	gen9_emit_huc_virtual_addr_state(src, dst, &reloc[0], &reloc[1], buf, &i);
+
+	buf[i++] = HUC_START;
+	buf[i++] = 1;
+
+	buf[i++] = MI_BATCH_BUFFER_END;
+
+	gem_write(fd, exec->handle, 0, buf, sizeof(buf));
+	exec->relocation_count = 2;
+	exec->relocs_ptr = to_user_pointer(reloc);
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(src);
+	execbuf.buffer_count = 3;
+	execbuf.flags = I915_EXEC_BSD;
+
+	gem_execbuf(fd, &execbuf);
+	gem_close(fd, exec->handle);
+}
diff --git a/lib/huc_copy.h b/lib/huc_copy.h
new file mode 100644
index 00000000..c435f6cb
--- /dev/null
+++ b/lib/huc_copy.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright © 2019 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.
+ *
+ */
+
+#ifndef HUC_COPY_H
+#define HUC_COPY_H
+
+#include <stdint.h>
+#include <string.h>
+#include "ioctl_wrappers.h"
+#include "intel_reg.h"
+
+#define PARALLEL_VIDEO_PIPE		(0x3<<29)
+#define MFX_WAIT			(PARALLEL_VIDEO_PIPE|(0x1<<27)|(0x1<<8))
+
+#define HUC_IMEM_STATE			(PARALLEL_VIDEO_PIPE|(0x2<<27)|(0xb<<23)|(0x1<<16)|0x3)
+#define HUC_PIPE_MODE_SELECT		(PARALLEL_VIDEO_PIPE|(0x2<<27)|(0xb<<23)|0x1)
+#define HUC_START			(PARALLEL_VIDEO_PIPE|(0x2<<27)|(0xb<<23)|(0x21<<16))
+#define HUC_VIRTUAL_ADDR_STATE		(PARALLEL_VIDEO_PIPE|(0x2<<27)|(0xb<<23)|(0x4<<16)|0x2f)
+
+#define HUC_VIRTUAL_ADDR_REGION_NUM	16
+#define HUC_VIRTUAL_ADDR_REGION_SRC	0
+#define HUC_VIRTUAL_ADDR_REGION_DST	14
+
+void
+gen9_huc_copyfunc(int fd,
+		struct drm_i915_gem_exec_object2 *src,
+		struct drm_i915_gem_exec_object2 *dst,
+		struct drm_i915_gem_exec_object2 *exec);
+
+#endif /* HUC_COPY_H */
diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 51aae4dc..d8cb9df3 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -43,6 +43,7 @@
 #include "ioctl_wrappers.h"
 #include "media_spin.h"
 #include "gpgpu_fill.h"
+#include "huc_copy.h"
 
 #include <i915_drm.h>
 
@@ -942,3 +943,22 @@ igt_media_spinfunc_t igt_get_media_spinfunc(int devid)
 
 	return spin;
 }
+
+/**
+ * igt_get_huc_copyfunc:
+ * @devid: pci device id
+ *
+ * Returns:
+ *
+ * The platform-specific huc copy function pointer for the device specified
+ * with @devid. Will return NULL when no media spin function is implemented.
+ */
+igt_huc_copyfunc_t igt_get_huc_copyfunc(int devid)
+{
+	igt_huc_copyfunc_t copy = NULL;
+
+	if (IS_GEN12(devid) || IS_GEN11(devid) || IS_GEN9(devid))
+		copy = gen9_huc_copyfunc;
+
+	return copy;
+}
diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 37e3affe..5af585ed 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -388,4 +388,23 @@ typedef void (*igt_media_spinfunc_t)(struct intel_batchbuffer *batch,
 
 igt_media_spinfunc_t igt_get_media_spinfunc(int devid);
 
+/**
+ * igt_huc_copyfunc_t:
+ * @fd: drm fd
+ * @src: source drm buffer
+ * @dst: destination drm buffer
+ * @exec: execution drm buffer
+ *
+ * This is the type of the per-platform huc copy functions.
+ *
+ * The huc copy function emits a batchbuffer to the VDBOX engine to
+ * invoke the HuC Copy kernel to copy 4K bytes from the source buffer
+ * to the destination buffer.
+ */
+typedef void (*igt_huc_copyfunc_t)(int fd,
+		struct drm_i915_gem_exec_object2 *src,
+		struct drm_i915_gem_exec_object2 *dst,
+		struct drm_i915_gem_exec_object2 *exec);
+
+igt_huc_copyfunc_t	igt_get_huc_copyfunc(int devid);
 #endif
diff --git a/lib/meson.build b/lib/meson.build
index 57eb7d93..3d720683 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -1,5 +1,6 @@
 lib_sources = [
 	'drmtest.c',
+	'huc_copy.c',
 	'i915/gem_context.c',
 	'i915/gem_engine_topology.c',
 	'i915/gem_scheduler.c',
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 806eb02d..d230d6b4 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -313,6 +313,9 @@ gem_media_fill_SOURCES = i915/gem_media_fill.c
 TESTS_progs += gem_media_vme
 gem_media_vme_SOURCES = i915/gem_media_vme.c
 
+TESTS_progs += gem_huc_copy
+gem_huc_copy_SOURCES = i915/gem_huc_copy.c
+
 TESTS_progs += gem_mmap
 gem_mmap_SOURCES = i915/gem_mmap.c
 
diff --git a/tests/i915/gem_huc_copy.c b/tests/i915/gem_huc_copy.c
new file mode 100644
index 00000000..f8da115d
--- /dev/null
+++ b/tests/i915/gem_huc_copy.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2019 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.
+ */
+#include "igt.h"
+#include <stdbool.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include "drm.h"
+
+IGT_TEST_DESCRIPTION("A very simple workload for the HuC.");
+
+#define HUC_COPY_DATA_BUF_SIZE	4096
+
+static void
+compare_huc_copy_result(int drm_fd, uint32_t src_handle, uint32_t dst_handle)
+{
+	char src_output[HUC_COPY_DATA_BUF_SIZE];
+	char dst_output[HUC_COPY_DATA_BUF_SIZE];
+
+	gem_read(drm_fd, src_handle, 0, src_output, HUC_COPY_DATA_BUF_SIZE);
+	gem_read(drm_fd, dst_handle, 0, dst_output, HUC_COPY_DATA_BUF_SIZE);
+
+	for (int i = 0; i < HUC_COPY_DATA_BUF_SIZE; i++) {
+		igt_assert_f(src_output[i] == dst_output[i],
+				"Huc Copy failed!\n");
+	}
+}
+
+static bool
+check_huc_status(int fd)
+{
+	int val = 0;
+	struct drm_i915_getparam pg;
+
+	pg.param = I915_PARAM_HUC_STATUS;
+	pg.value = &val;
+	if (ioctl(fd, DRM_IOCTL_I915_GETPARAM, &pg) == 0) {
+		return !!val;
+	} else {
+		return 0;
+	}
+}
+
+igt_main
+{
+	int drm_fd = -1;
+	uint32_t devid;
+	igt_huc_copyfunc_t huc_copy;
+
+	igt_fixture {
+		drm_fd = drm_open_driver(DRIVER_INTEL);
+		igt_require_gem(drm_fd);
+		devid = intel_get_drm_devid(drm_fd);
+		huc_copy = igt_get_huc_copyfunc(devid);
+		igt_require_f(huc_copy, "no huc_copy function\n");
+		igt_assert_f(check_huc_status(drm_fd) == true,
+			"HuC is not successfully loaded!\n");
+	}
+
+	igt_subtest_f("huc-copy") {
+		char inputs[HUC_COPY_DATA_BUF_SIZE];
+		struct drm_i915_gem_exec_object2 obj[3];
+
+		/* Initialize src buffer randomly */
+		srand(time(NULL));
+		for (int i = 0; i < HUC_COPY_DATA_BUF_SIZE; i++) {
+			inputs[i] = (char) (rand() % 256);
+		}
+
+		memset(obj, 0, sizeof(obj));
+		obj[0].handle = gem_create(drm_fd, HUC_COPY_DATA_BUF_SIZE);
+		obj[1].handle = gem_create(drm_fd, HUC_COPY_DATA_BUF_SIZE);
+		obj[2].handle = gem_create(drm_fd, 4096);
+
+		gem_write(drm_fd, obj[0].handle, 0, inputs, HUC_COPY_DATA_BUF_SIZE);
+
+		huc_copy(drm_fd, &obj[0], &obj[1], &obj[2]);
+		compare_huc_copy_result(drm_fd, obj[0].handle, obj[1].handle);
+	}
+
+	igt_fixture {
+		close(drm_fd);
+	}
+}
diff --git a/tests/meson.build b/tests/meson.build
index 570de545..0545b612 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -165,6 +165,7 @@ i915_progs = [
 	'gem_gtt_cpu_tlb',
 	'gem_gtt_hog',
 	'gem_gtt_speed',
+	'gem_huc_copy',
 	'gem_largeobject',
 	'gem_linear_blits',
 	'gem_lut_handle',
-- 
2.21.0.5.gaeb582a983

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