[PATCH i-g-t] lib: substitute cxt BAN_PERIOD with BANNABLE

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Context BAN_PERIOD will get depracated so subsitute it with BANNABLE
property. Make ctx param test to accept both variants for now
until kernel changes have landed, to not break BAT.

Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
---
 lib/igt_gt.c          | 77 ++++++++++++++++++++++++++++++---------------------
 lib/ioctl_wrappers.c  | 16 +++++++++--
 lib/ioctl_wrappers.h  |  3 +-
 tests/gem_ctx_param.c |  9 ++++--
 4 files changed, 68 insertions(+), 37 deletions(-)

diff --git a/lib/igt_gt.c b/lib/igt_gt.c
index a165932..b8c3511 100644
--- a/lib/igt_gt.c
+++ b/lib/igt_gt.c
@@ -119,11 +119,43 @@ void igt_require_hang_ring(int fd, int ring)
 		igt_skip("hang injection disabled by user");
 
 	gem_require_ring(fd, ring);
-	gem_context_require_ban_period(fd);
+	gem_context_require_bannable(fd);
 	if (!igt_check_boolean_env_var("IGT_HANG_WITHOUT_RESET", false))
 		igt_require(has_gpu_reset(fd));
 }
 
+static unsigned igt_get_ban(int fd, unsigned ctx)
+{
+	struct local_i915_gem_context_param param;
+
+	param.param = LOCAL_CONTEXT_PARAM_BANNABLE;
+	param.value = 0;
+	param.size = 0;
+
+	if (__gem_context_get_param(fd, &param)) {
+		igt_assert(param.value == 0);
+		param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
+		gem_context_get_param(fd, &param);
+	}
+
+	return param.value;
+}
+
+static void igt_set_ban(int fd, unsigned ctx, unsigned ban)
+{
+	struct local_i915_gem_context_param param;
+
+	param.value = ban;
+	param.size = 0;
+	param.param = LOCAL_CONTEXT_PARAM_BANNABLE;
+
+	if(__gem_context_set_param(fd, &param)) {
+		igt_assert(param.value == ban);
+		param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
+		gem_context_set_param(fd, &param);
+	}
+}
+
 igt_hang_t igt_allow_hang(int fd, unsigned ctx, unsigned flags)
 {
 	struct local_i915_gem_context_param param;
@@ -131,7 +163,7 @@ igt_hang_t igt_allow_hang(int fd, unsigned ctx, unsigned flags)
 
 	if (!igt_check_boolean_env_var("IGT_HANG", true))
 		igt_skip("hang injection disabled by user");
-	gem_context_require_ban_period(fd);
+	gem_context_require_bannable(fd);
 	if (!igt_check_boolean_env_var("IGT_HANG_WITHOUT_RESET", false))
 		igt_require(has_gpu_reset(fd));
 
@@ -148,16 +180,9 @@ igt_hang_t igt_allow_hang(int fd, unsigned ctx, unsigned flags)
 		__gem_context_set_param(fd, &param);
 	}
 
-	param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-	param.value = 0;
-	gem_context_get_param(fd, &param);
-	ban = param.value;
-
-	if ((flags & HANG_ALLOW_BAN) == 0) {
-		param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-		param.value = 0;
-		gem_context_set_param(fd, &param);
-	}
+	ban = igt_get_ban(fd, ctx);
+	if ((flags & HANG_ALLOW_BAN) == 0)
+		igt_set_ban(fd, ctx, 0);
 
 	return (struct igt_hang){ 0, ctx, ban, flags };
 }
@@ -166,13 +191,11 @@ void igt_disallow_hang(int fd, igt_hang_t arg)
 {
 	struct local_i915_gem_context_param param;
 
-	param.context = arg.ctx;
-	param.size = 0;
-	param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-	param.value = arg.ban;
-	gem_context_set_param(fd, &param);
+	igt_set_ban(fd, arg.ctx, arg.ban);
 
 	if ((arg.flags & HANG_ALLOW_CAPTURE) == 0) {
+		param.context = arg.ctx;
+		param.size = 0;
 		param.param = LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE;
 		param.value = 0;
 		if (__gem_context_set_param(fd, &param))
@@ -227,16 +250,10 @@ igt_hang_t igt_hang_ctx(int fd,
 		__gem_context_set_param(fd, &param);
 	}
 
-	param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-	param.value = 0;
-	gem_context_get_param(fd, &param);
-	ban = param.value;
+	ban = igt_get_ban(fd, ctx);
 
-	if ((flags & HANG_ALLOW_BAN) == 0) {
-		param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-		param.value = 0;
-		gem_context_set_param(fd, &param);
-	}
+	if ((flags & HANG_ALLOW_BAN) == 0)
+		igt_set_ban(fd, ctx, 0);
 
 	memset(&reloc, 0, sizeof(reloc));
 	memset(&exec, 0, sizeof(exec));
@@ -323,13 +340,11 @@ void igt_post_hang_ring(int fd, igt_hang_t arg)
 		       I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
 	gem_close(fd, arg.handle);
 
-	param.context = arg.ctx;
-	param.size = 0;
-	param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-	param.value = arg.ban;
-	gem_context_set_param(fd, &param);
+	igt_set_ban(fd, arg.ctx, arg.ban);
 
 	if ((arg.flags & HANG_ALLOW_CAPTURE) == 0) {
+		param.context = arg.ctx;
+		param.size = 0;
 		param.param = LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE;
 		param.value = 0;
 		if (__gem_context_set_param(fd, &param))
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index eabf3ee..06638d4 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -961,9 +961,21 @@ void gem_context_require_param(int fd, uint64_t param)
 	igt_require(igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0);
 }
 
-void gem_context_require_ban_period(int fd)
+void gem_context_require_bannable(int fd)
 {
 	static int has_ban_period = -1;
+	static int has_bannable = -1;
+
+	if (has_bannable < 0) {
+		struct local_i915_gem_context_param p;
+
+		p.context = 0;
+		p.param = LOCAL_CONTEXT_PARAM_BANNABLE;
+		p.value = 0;
+		p.size = 0;
+
+		has_bannable = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
+	}
 
 	if (has_ban_period < 0) {
 		struct local_i915_gem_context_param p;
@@ -976,7 +988,7 @@ void gem_context_require_ban_period(int fd)
 		has_ban_period = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
 	}
 
-	igt_require(has_ban_period);
+	igt_require(has_ban_period || has_bannable);
 }
 
 int __gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle)
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index 465f760..2627097 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -120,9 +120,10 @@ struct local_i915_gem_context_param {
 #define LOCAL_CONTEXT_PARAM_NO_ZEROMAP	0x2
 #define LOCAL_CONTEXT_PARAM_GTT_SIZE	0x3
 #define LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE	0x4
+#define LOCAL_CONTEXT_PARAM_BANNABLE	0x5
 	uint64_t value;
 };
-void gem_context_require_ban_period(int fd);
+void gem_context_require_bannable(int fd);
 void gem_context_require_param(int fd, uint64_t param);
 void gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
 void gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
diff --git a/tests/gem_ctx_param.c b/tests/gem_ctx_param.c
index 57d5e36..efdaf19 100644
--- a/tests/gem_ctx_param.c
+++ b/tests/gem_ctx_param.c
@@ -43,6 +43,11 @@ igt_main
 
 	arg.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
 
+	/* XXX start to enforce ban period returning -EINVAL when
+	 * transition has been done */
+	if (__gem_context_get_param(fd, &arg) == -EINVAL)
+		arg.param = LOCAL_CONTEXT_PARAM_BANNABLE;
+
 	igt_subtest("basic") {
 		arg.context = ctx;
 		gem_context_get_param(fd, &arg);
@@ -82,8 +87,6 @@ igt_main
 		arg.size = 0;
 	}
 
-	arg.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
-
 	igt_subtest("non-root-set") {
 		igt_fork(child, 1) {
 			igt_drop_root();
@@ -137,7 +140,7 @@ igt_main
 	 * to catch ABI extensions. Don't "fix" this testcase without adding all
 	 * the tests for the new param first.
 	 */
-	arg.param = LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE + 1;
+	arg.param = LOCAL_CONTEXT_PARAM_BANNABLE + 1;
 
 	igt_subtest("invalid-param-get") {
 		arg.context = ctx;
-- 
2.7.4

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