lib/igt_gt: Document and consolidate

Also move forcewake and stop_rings code from igt_debugfs to igt_gt
since it fits better. And move the hang injection fork helpers from
igt_aux to igt_gt, too.

Also push the intel_gen call into igt_hang_ring while at it.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

docs/reference/intel-gpu-tools/intel-gpu-tools-docs.xml

@@ -21,6 +21,7 @@
     <xi:include href="xml/igt_kms.xml"/>
     <xi:include href="xml/igt_fb.xml"/>
     <xi:include href="xml/igt_aux.xml"/>
+    <xi:include href="xml/igt_gt.xml"/>
     <xi:include href="xml/ioctl_wrappers.xml"/>
     <xi:include href="xml/intel_batchbuffer.xml"/>
     <xi:include href="xml/intel_chipset.xml"/>

lib/drmtest.c

@@ -51,6 +51,7 @@
 #include "i915_drm.h"
 #include "intel_chipset.h"
 #include "intel_io.h"
+#include "igt_gt.h"
 #include "igt_debugfs.h"
 #include "version.h"
 #include "config.h"

lib/igt_aux.c

@@ -132,74 +132,6 @@ void igt_stop_signal_helper(void)
 	sig_stat = 0;
 }
 
-/* GPU abusers */
-static struct igt_helper_process hang_helper;
-static void __attribute__((noreturn))
-hang_helper_process(pid_t pid, int fd, int gen)
-{
-	while (1) {
-		if (kill(pid, 0)) /* Parent has died, so must we. */
-			exit(0);
-
-		igt_post_hang_ring(fd,
-				   igt_hang_ring(fd, gen, I915_EXEC_DEFAULT));
-
-		sleep(1);
-	}
-}
-
-/**
- * igt_fork_hang_helper:
- *
- * Fork a child process using #igt_fork_helper to hang the default engine
- * of the GPU at regular intervals.
- *
- * This is useful to exercise slow running code (such as aperture placement)
- * which needs to be robust against a GPU reset.
- *
- * In tests with subtests this function can be called outside of failure
- * catching code blocks like #igt_fixture or #igt_subtest.
- */
-int igt_fork_hang_helper(void)
-{
-	int fd, gen;
-
-	if (igt_only_list_subtests())
-		return 1;
-
-	fd = drm_open_any();
-	if (fd == -1)
-		return 0;
-
-	gen = intel_gen(intel_get_drm_devid(fd));
-	if (gen < 5) {
-		close(fd);
-		return 0;
-	}
-
-	igt_fork_helper(&hang_helper)
-		hang_helper_process(getppid(), fd, gen);
-
-	close(fd);
-	return 1;
-}
-
-/**
- * igt_stop_hang_helper:
- *
- * Stops the child process spawned with igt_fork_hang_helper().
- *
- * In tests with subtests this function can be called outside of failure
- * catching code blocks like #igt_fixture or #igt_subtest.
- */
-void igt_stop_hang_helper(void)
-{
-	if (igt_only_list_subtests())
-		return;
-
-	igt_stop_helper(&hang_helper);
-}
-
 /**
  * igt_check_boolean_env_var:
  * @env_var: environment variable name

lib/igt_aux.h

@@ -39,9 +39,6 @@ extern int num_trash_bos;
 void igt_fork_signal_helper(void);
 void igt_stop_signal_helper(void);
 
-int igt_fork_hang_helper(void);
-void igt_stop_hang_helper(void);
-
 void igt_exchange_int(void *array, unsigned i, unsigned j);
 void igt_permute_array(void *array, unsigned size,
 			   void (*exchange_func)(void *array,

lib/igt_debugfs.c

@@ -613,125 +613,3 @@ void igt_enable_prefault(void)
 {
 	igt_prefault_control(true);
 }
-
-/**
- * igt_open_forcewake_handle:
- *
- * This functions opens the debugfs forcewake file and so prevents the GT from
- * suspending. The reference is automatically dropped when the is closed.
- *
- * Returns:
- * The file descriptor of the forcewake handle or -1 if that didn't work out.
- */
-int igt_open_forcewake_handle(void)
-{
-	if (getenv("IGT_NO_FORCEWAKE"))
-		return -1;
-	return igt_debugfs_open("i915_forcewake_user", O_WRONLY);
-}
-
-/**
- * igt_to_stop_ring_flag:
- * @ring: the specified ring flag from execbuf ioctl (I915_EXEC_*)
- *
- * This converts the specified ring to a ring flag to be used
- * with igt_get_stop_rings() and igt_set_stop_rings().
- *
- * Returns:
- * Ring flag for the given ring.
- */
-enum stop_ring_flags igt_to_stop_ring_flag(int ring) {
-	if (ring == I915_EXEC_DEFAULT)
-		return STOP_RING_RENDER;
-
-	igt_assert(ring && ((ring & ~I915_EXEC_RING_MASK) == 0));
-	return 1 << (ring - 1);
-}
-
-static void stop_rings_write(uint32_t mask)
-{
-	int fd;
-	char buf[80];
-
-	igt_assert(snprintf(buf, sizeof(buf), "0x%08x", mask) == 10);
-	fd = igt_debugfs_open("i915_ring_stop", O_WRONLY);
-	igt_assert(fd >= 0);
-
-	igt_assert(write(fd, buf, strlen(buf)) == strlen(buf));
-	close(fd);
-}
-
-/**
- * igt_get_stop_rings:
- *
- * Read current ring flags from 'i915_ring_stop' debugfs entry.
- *
- * Returns:
- * Current ring flags.
- */
-enum stop_ring_flags igt_get_stop_rings(void)
-{
-	int fd;
-	char buf[80];
-	int l;
-	unsigned long long ring_mask;
-
-	fd = igt_debugfs_open("i915_ring_stop", O_RDONLY);
-	igt_assert(fd >= 0);
-	l = read(fd, buf, sizeof(buf)-1);
-	igt_assert(l > 0);
-	igt_assert(l < sizeof(buf));
-
-	buf[l] = '\0';
-
-	close(fd);
-
-	errno = 0;
-	ring_mask = strtoull(buf, NULL, 0);
-	igt_assert(errno == 0);
-	return ring_mask;
-}
-
-/**
- * igt_set_stop_rings:
- * @flags: Ring flags to write
- *
- * This writes @flags to 'i915_ring_stop' debugfs entry. Driver will
- * prevent the CPU from writing tail pointer for the ring that @flags
- * specify. Note that the ring is not stopped right away. Instead any
- * further command emissions won't be executed after the flag is set.
- *
- * This is the least invasive way to make the GPU stuck. Hence you must
- * set this after a batch submission with it's own invalid or endless
- * looping instructions. In this case it is merely for giving notification
- * for the driver that this was simulated hang, as the batch would have
- * caused hang in any case. On the other hand if you use a valid or noop
- * batch and want to hang the ring (GPU), you must set corresponding flag
- * before submitting the batch.
- *
- * Driver checks periodically if a ring is making any progress, and if
- * it is not, it will declare the ring to be hung and will reset the GPU.
- * After reset, the driver will clear flags in 'i915_ring_stop'
- *
- * Note: Always when hanging the GPU, use igt_set_stop_rings() to
- * notify the driver. Driver controls hang log messaging based on
- * these flags and thus prevents false positives on logs.
- */
-void igt_set_stop_rings(enum stop_ring_flags flags)
-{
-	enum stop_ring_flags current;
-
-	igt_assert((flags & ~(STOP_RING_ALL |
-			      STOP_RING_ALLOW_BAN |
-			      STOP_RING_ALLOW_ERRORS)) == 0);
-
-	current = igt_get_stop_rings();
-	igt_assert_f(flags == 0 || current == 0,
-		     "previous i915_ring_stop is still 0x%x\n", current);
-
-	stop_rings_write(flags);
-	current = igt_get_stop_rings();
-	igt_warn_on_f(current != flags,
-		      "i915_ring_stop readback mismatch 0x%x vs 0x%x\n",
-		      flags, current);
-}

lib/igt_debugfs.h

@@ -142,39 +142,4 @@ void igt_drop_caches_set(uint64_t val);
 void igt_disable_prefault(void);
 void igt_enable_prefault(void);
 
-int igt_open_forcewake_handle(void);
-
-/**
- * stop_ring_flags:
- * @STOP_RING_NONE: Can be used to clear the pending stop (warning: hang might
- * be declared already). Returned by igt_get_stop_rings() if there is
- * no currently stopped rings.
- * @STOP_RING_RENDER: Render ring
- * @STOP_RING_BSD: Video encoding/decoding ring
- * @STOP_RING_BLT: Blitter ring
- * @STOP_RING_VEBOX: Video enhancement ring
- * @STOP_RING_ALL: All rings
- * @STOP_RING_ALLOW_ERRORS: Driver will not omit expected DRM_ERRORS
- * @STOP_RING_ALLOW_BAN: Driver will use context ban policy
- * @STOP_RING_DEFAULTS: STOP_RING_ALL | STOP_RING_ALLOW_ERRORS
- *
- * Enumeration of all supported flags for igt_set_stop_rings().
- *
- */
-enum stop_ring_flags {
-	STOP_RING_NONE = 0x00,
-	STOP_RING_RENDER = (1 << 0),
-	STOP_RING_BSD = (1 << 1),
-	STOP_RING_BLT = (1 << 2),
-	STOP_RING_VEBOX = (1 << 3),
-	STOP_RING_ALL = 0xff,
-	STOP_RING_ALLOW_ERRORS = (1 << 30),
-	STOP_RING_ALLOW_BAN = (1 << 31),
-	STOP_RING_DEFAULTS = STOP_RING_ALL | STOP_RING_ALLOW_ERRORS,
-};
-
-enum stop_ring_flags igt_to_stop_ring_flag(int ring);
-void igt_set_stop_rings(enum stop_ring_flags flags);
-enum stop_ring_flags igt_get_stop_rings(void);
-
 #endif /* __IGT_DEBUGFS_H__ */

lib/igt_gt.c

@@ -22,8 +22,13 @@
  */
 
 #include <string.h>
+#include <signal.h>
 #include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
 
+#include "drmtest.h"
 #include "igt_core.h"
 #include "igt_gt.h"
 #include "igt_debugfs.h"
@@ -31,13 +36,46 @@
 #include "intel_reg.h"
 #include "intel_chipset.h"
 
+/**
+ * SECTION:igt_gt
+ * @short_description: GT support library
+ * @title: i-g-t gt
+ * @include: igt_gt.h
+ *
+ * This library provides various auxiliary helper functions to handle general
+ * interactions with the GT like forcewake handling, injecting hangs or stopping
+ * engines.
+ */
+
+
+/**
+ * igt_require_hang_ring:
+ * @fd: open i915 drm file descriptor
+ * @ring: execbuf ring flag
+ *
+ * Convenience helper to check whether advanced hang injection is supported by
+ * the kernel. Uses igt_skip to automatically skip the test/subtest if this
+ * isn't the case.
+ */
 void igt_require_hang_ring(int fd, int ring)
 {
 	gem_context_require_param(fd, LOCAL_CONTEXT_PARAM_BAN_PERIOD);
 	igt_require(intel_gen(intel_get_drm_devid(fd)) >= 5);
 }
 
-struct igt_hang_ring igt_hang_ring(int fd, int gen, int ring)
+/**
+ * igt_hang_ring:
+ * @fd: open i915 drm file descriptor
+ * @ring: execbuf ring flag
+ *
+ * This helper function injects a hanging batch into @ring. It returns a
+ * #igt_hang_ring_t structure which must be passed to igt_post_hang_ring() for
+ * hang post-processing (after the gpu hang interaction has been tested.
+ *
+ * Returns:
+ * Structure with helper internal state for igt_post_hang_ring().
+ */
+igt_hang_ring_t igt_hang_ring(int fd, int ring)
 {
 	struct drm_i915_gem_relocation_entry reloc;
 	struct drm_i915_gem_execbuffer2 execbuf;
@@ -66,7 +104,7 @@ struct igt_hang_ring igt_hang_ring(int fd, int gen, int ring)
 	exec.relocs_ptr = (uintptr_t)&reloc;
 
 	len = 2;
-	if (gen >= 8)
+	if (intel_gen(intel_get_drm_devid(fd)) >= 8)
 		len++;
 	b[0] = MI_BATCH_BUFFER_START | (len - 2);
 	b[len] = MI_BATCH_BUFFER_END;
@@ -86,6 +124,14 @@ struct igt_hang_ring igt_hang_ring(int fd, int gen, int ring)
 	return (struct igt_hang_ring){ exec.handle, ban };
 }
 
+/**
+ * igt_hang_ring:
+ * @fd: open i915 drm file descriptor
+ * @arg: hang state from igt_hang_ring()
+ *
+ * This function does the necessary post-processing after a gpu hang injected
+ * with igt_hang_ring().
+ */
 void igt_post_hang_ring(int fd, struct igt_hang_ring arg)
 {
 	struct local_i915_gem_context_param param;
@@ -103,3 +149,193 @@ void igt_post_hang_ring(int fd, struct igt_hang_ring arg)
 	param.value = arg.ban;
 	gem_context_set_param(fd, &param);
 }
+
+/* GPU abusers */
+static struct igt_helper_process hang_helper;
+static void __attribute__((noreturn))
+hang_helper_process(pid_t pid, int fd)
+{
+	while (1) {
+		if (kill(pid, 0)) /* Parent has died, so must we. */
+			exit(0);
+
+		igt_post_hang_ring(fd,
+				   igt_hang_ring(fd, I915_EXEC_DEFAULT));
+
+		sleep(1);
+	}
+}
+
+/**
+ * igt_fork_hang_helper:
+ *
+ * Fork a child process using #igt_fork_helper to hang the default engine
+ * of the GPU at regular intervals.
+ *
+ * This is useful to exercise slow running code (such as aperture placement)
+ * which needs to be robust against a GPU reset.
+ *
+ * In tests with subtests this function can be called outside of failure
+ * catching code blocks like #igt_fixture or #igt_subtest.
+ */
+int igt_fork_hang_helper(void)
+{
+	int fd, gen;
+
+	if (igt_only_list_subtests())
+		return 1;
+
+	fd = drm_open_any();
+	if (fd == -1)
+		return 0;
+
+	gen = intel_gen(intel_get_drm_devid(fd));
+	if (gen < 5) {
+		close(fd);
+		return 0;
+	}
+
+	igt_fork_helper(&hang_helper)
+		hang_helper_process(getppid(), fd);
+
+	close(fd);
+	return 1;
+}
+
+/**
+ * igt_stop_hang_helper:
+ *
+ * Stops the child process spawned with igt_fork_hang_helper().
+ *
+ * In tests with subtests this function can be called outside of failure
+ * catching code blocks like #igt_fixture or #igt_subtest.
+ */
+void igt_stop_hang_helper(void)
+{
+	if (igt_only_list_subtests())
+		return;
+
+	igt_stop_helper(&hang_helper);
+}
+
+/**
+ * igt_open_forcewake_handle:
+ *
+ * This functions opens the debugfs forcewake file and so prevents the GT from
+ * suspending. The reference is automatically dropped when the is closed.
+ *
+ * Returns:
+ * The file descriptor of the forcewake handle or -1 if that didn't work out.
+ */
+int igt_open_forcewake_handle(void)
+{
+	if (getenv("IGT_NO_FORCEWAKE"))
+		return -1;
+	return igt_debugfs_open("i915_forcewake_user", O_WRONLY);
+}
+
+/**
+ * igt_to_stop_ring_flag:
+ * @ring: the specified ring flag from execbuf ioctl (I915_EXEC_*)
+ *
+ * This converts the specified ring to a ring flag to be used
+ * with igt_get_stop_rings() and igt_set_stop_rings().
+ *
+ * Returns:
+ * Ring flag for the given ring.
+ */
+enum stop_ring_flags igt_to_stop_ring_flag(int ring) {
+	if (ring == I915_EXEC_DEFAULT)
+		return STOP_RING_RENDER;
+
+	igt_assert(ring && ((ring & ~I915_EXEC_RING_MASK) == 0));
+	return 1 << (ring - 1);
+}
+
+static void stop_rings_write(uint32_t mask)
+{
+	int fd;
+	char buf[80];
+
+	igt_assert(snprintf(buf, sizeof(buf), "0x%08x", mask) == 10);
+	fd = igt_debugfs_open("i915_ring_stop", O_WRONLY);
+	igt_assert(fd >= 0);
+
+	igt_assert(write(fd, buf, strlen(buf)) == strlen(buf));
+	close(fd);
+}
+
+/**
+ * igt_get_stop_rings:
+ *
+ * Read current ring flags from 'i915_ring_stop' debugfs entry.
+ *
+ * Returns:
+ * Current ring flags.
+ */
+enum stop_ring_flags igt_get_stop_rings(void)
+{
+	int fd;
+	char buf[80];
+	int l;
+	unsigned long long ring_mask;
+
+	fd = igt_debugfs_open("i915_ring_stop", O_RDONLY);
+	igt_assert(fd >= 0);
+	l = read(fd, buf, sizeof(buf)-1);
+	igt_assert(l > 0);
+	igt_assert(l < sizeof(buf));
+
+	buf[l] = '\0';
+
+	close(fd);
+
+	errno = 0;
+	ring_mask = strtoull(buf, NULL, 0);
+	igt_assert(errno == 0);
+	return ring_mask;
+}
+
+/**
+ * igt_set_stop_rings:
+ * @flags: Ring flags to write
+ *
+ * This writes @flags to 'i915_ring_stop' debugfs entry. Driver will
+ * prevent the CPU from writing tail pointer for the ring that @flags
+ * specify. Note that the ring is not stopped right away. Instead any
+ * further command emissions won't be executed after the flag is set.
+ *
+ * This is the least invasive way to make the GPU stuck. Hence you must
+ * set this after a batch submission with it's own invalid or endless
+ * looping instructions. In this case it is merely for giving notification
+ * for the driver that this was simulated hang, as the batch would have
+ * caused hang in any case. On the other hand if you use a valid or noop
+ * batch and want to hang the ring (GPU), you must set corresponding flag
+ * before submitting the batch.
+ *
+ * Driver checks periodically if a ring is making any progress, and if
+ * it is not, it will declare the ring to be hung and will reset the GPU.
+ * After reset, the driver will clear flags in 'i915_ring_stop'
+ *
+ * Note: Always when hanging the GPU, use igt_set_stop_rings() to
+ * notify the driver. Driver controls hang log messaging based on
+ * these flags and thus prevents false positives on logs.
+ */
+void igt_set_stop_rings(enum stop_ring_flags flags)
+{
+	enum stop_ring_flags current;
+
+	igt_assert((flags & ~(STOP_RING_ALL |
+			      STOP_RING_ALLOW_BAN |
+			      STOP_RING_ALLOW_ERRORS)) == 0);
+
+	current = igt_get_stop_rings();
+	igt_assert_f(flags == 0 || current == 0,
+		     "previous i915_ring_stop is still 0x%x\n", current);
+
+	stop_rings_write(flags);
+	current = igt_get_stop_rings();
+	igt_warn_on_f(current != flags,
+		      "i915_ring_stop readback mismatch 0x%x vs 0x%x\n",
+		      flags, current);
+}

lib/igt_gt.h

@@ -24,12 +24,54 @@
 #ifndef IGT_GT_H
 #define IGT_GT_H
 
+#include "igt_debugfs.h"
+
 void igt_require_hang_ring(int fd, int ring);
 
-struct igt_hang_ring {
+typedef struct igt_hang_ring {
 	unsigned handle;
 	unsigned ban;
-} igt_hang_ring(int fd, int gen, int ring);
+} igt_hang_ring_t;
+
+struct igt_hang_ring igt_hang_ring(int fd, int ring);
 void igt_post_hang_ring(int fd, struct igt_hang_ring data);
 
+int igt_fork_hang_helper(void);
+void igt_stop_hang_helper(void);
+
+int igt_open_forcewake_handle(void);
+
+/**
+ * stop_ring_flags:
+ * @STOP_RING_NONE: Can be used to clear the pending stop (warning: hang might
+ * be declared already). Returned by igt_get_stop_rings() if there is
+ * no currently stopped rings.
+ * @STOP_RING_RENDER: Render ring
+ * @STOP_RING_BSD: Video encoding/decoding ring
+ * @STOP_RING_BLT: Blitter ring
+ * @STOP_RING_VEBOX: Video enhancement ring
+ * @STOP_RING_ALL: All rings
+ * @STOP_RING_ALLOW_ERRORS: Driver will not omit expected DRM_ERRORS
+ * @STOP_RING_ALLOW_BAN: Driver will use context ban policy
+ * @STOP_RING_DEFAULTS: STOP_RING_ALL | STOP_RING_ALLOW_ERRORS
+ *
+ * Enumeration of all supported flags for igt_set_stop_rings().
+ *
+ */
+enum stop_ring_flags {
+	STOP_RING_NONE = 0x00,
+	STOP_RING_RENDER = (1 << 0),
+	STOP_RING_BSD = (1 << 1),
+	STOP_RING_BLT = (1 << 2),
+	STOP_RING_VEBOX = (1 << 3),
+	STOP_RING_ALL = 0xff,
+	STOP_RING_ALLOW_ERRORS = (1 << 30),
+	STOP_RING_ALLOW_BAN = (1 << 31),
+	STOP_RING_DEFAULTS = STOP_RING_ALL | STOP_RING_ALLOW_ERRORS,
+};
+
+enum stop_ring_flags igt_to_stop_ring_flag(int ring);
+void igt_set_stop_rings(enum stop_ring_flags flags);
+enum stop_ring_flags igt_get_stop_rings(void);
+
 #endif /* IGT_GT_H */

lib/intel_mmio.c

@@ -43,7 +43,7 @@
 
 #include "intel_io.h"
 #include "igt_core.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "intel_chipset.h"
 
 /**

tests/drv_hangman.c

@@ -34,7 +34,7 @@
 #include "intel_chipset.h"
 #include "drmtest.h"
 #include "igt_aux.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "ioctl_wrappers.h"
 
 #ifndef I915_PARAM_CMD_PARSER_VERSION

tests/drv_suspend.c

@@ -39,7 +39,7 @@
 
 #include "ioctl_wrappers.h"
 #include "drmtest.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "igt_aux.h"
 
 #define OBJECT_SIZE (16*1024*1024)

tests/gem_concurrent_blit.c

@@ -464,12 +464,12 @@ static struct igt_hang_ring no_hang(void)
 
 static struct igt_hang_ring bcs_hang(void)
 {
-	return igt_hang_ring(fd, gen, I915_EXEC_BLT);
+	return igt_hang_ring(fd, I915_EXEC_BLT);
 }
 
 static struct igt_hang_ring rcs_hang(void)
 {
-	return igt_hang_ring(fd, gen, I915_EXEC_RENDER);
+	return igt_hang_ring(fd, I915_EXEC_RENDER);
 }
 
 static void hang_require(void)

tests/gem_ctx_exec.c

@@ -46,7 +46,7 @@
 #include "ioctl_wrappers.h"
 #include "drmtest.h"
 #include "igt_aux.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 
 IGT_TEST_DESCRIPTION("Test basic context switch functionality.");
 

tests/gem_evict_alignment.c

@@ -48,6 +48,7 @@
 #include "drmtest.h"
 #include "intel_chipset.h"
 #include "igt_aux.h"
+#include "igt_gt.h"
 
 IGT_TEST_DESCRIPTION("Run a couple of big batches to force the unbind on"
 		     " misalignment code.");

tests/gem_evict_everything.c

@@ -45,6 +45,7 @@
 #include "ioctl_wrappers.h"
 #include "drmtest.h"
 #include "intel_chipset.h"
+#include "igt_gt.h"
 
 #include "eviction_common.c"
 

tests/gem_pread_after_blit.c

@@ -132,7 +132,7 @@ static struct igt_hang_ring no_hang(int fd)
 
 static struct igt_hang_ring bcs_hang(int fd)
 {
-	return igt_hang_ring(fd, batch->gen, batch->gen >= 6 ? I915_EXEC_BLT : I915_EXEC_DEFAULT);
+	return igt_hang_ring(fd, batch->gen >= 6 ? I915_EXEC_BLT : I915_EXEC_DEFAULT);
 }
 
 static void do_test(int fd, int cache_level,

tests/gem_reloc_vs_gpu.c

@@ -198,7 +198,7 @@ static struct igt_hang_ring no_hang(int fd)
 
 static struct igt_hang_ring bcs_hang(int fd)
 {
-	return igt_hang_ring(fd, batch->gen, I915_EXEC_BLT);
+	return igt_hang_ring(fd, I915_EXEC_BLT);
 }
 
 static void do_test(int fd, bool faulting_reloc,

tests/gem_reset_stats.c

@@ -42,7 +42,7 @@
 
 #include "ioctl_wrappers.h"
 #include "drmtest.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "intel_chipset.h"
 #include "intel_io.h"
 #include "igt_aux.h"

tests/gem_workarounds.c

@@ -42,7 +42,7 @@
 
 #include "ioctl_wrappers.h"
 #include "drmtest.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "igt_aux.h"
 #include "intel_chipset.h"
 #include "intel_io.h"

tests/kms_flip.c

@@ -48,7 +48,7 @@
 #include "intel_batchbuffer.h"
 #include "igt_kms.h"
 #include "igt_aux.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 
 #define TEST_DPMS		(1 << 0)
 #define TEST_WITH_DUMMY_BCS	(1 << 1)

tests/kms_pipe_crc_basic.c

@@ -28,7 +28,7 @@
 #include <string.h>
 
 #include "drmtest.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "igt_kms.h"
 #include "igt_aux.h"
 #include "ioctl_wrappers.h"

tests/pm_rpm.c

@@ -49,7 +49,7 @@
 #include "ioctl_wrappers.h"
 #include "igt_aux.h"
 #include "igt_kms.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 
 /* One day, this will be on your libdrm. */
 #define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2

tests/pm_rps.c

@@ -42,7 +42,7 @@
 #include "intel_bufmgr.h"
 #include "intel_batchbuffer.h"
 #include "intel_chipset.h"
-#include "igt_debugfs.h"
+#include "igt_gt.h"
 #include "ioctl_wrappers.h"
 
 static int drm_fd;