drm/i915/i915_utils.h

43 #define FDO_BUG_URL "https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs"
70 #define i915_inject_probe_failure(i915) i915_inject_probe_error((i915), -ENODEV)
96 	start__ >= max__ || size__ > max__ - start__; \
108 	start__ > max__ || size__ > max__ - start__; \
116 	(typeof(ptr))(__v & -BIT(n));					\
119 #define ptr_unmask_bits(ptr, n) ((unsigned long)(ptr) & (BIT(n) - 1))
123 	*(bits) = __v & (BIT(n) - 1);					\
124 	(typeof(ptr))(__v & -BIT(n));					\
129 	GEM_BUG_ON(__bits & -BIT(n));					\
135 	(typeof(ptr))(__v - 1);						\
156 	return a - b;  in ptrdiff()
170 	((type __user *)(__mptr - offsetof(type, member))); })
183  * Returns: -EFAULT if not accessible, -EINVAL if !zero, or 0 on success.
187 	get_user(mbz__, (U)) ? -EFAULT : mbz__ ? -EINVAL : 0;		\
196 	int __idx = ffs(mask) - 1;					\
203 	return (n != 0 && ((n & (n - 1)) == 0));  in is_power_of_2_u64()
209 	first->prev = head;  in __list_del_many()
210 	WRITE_ONCE(head->next, first);  in __list_del_many()
216 	return READ_ONCE(list->next) == head;  in list_is_last_rcu()
238 	 * Don't re-read the value of "jiffies" every time since it may change  in wait_remaining_ms_from_jiffies()
246 		remaining_jiffies = target_jiffies - tmp_jiffies;  in wait_remaining_ms_from_jiffies()
254  * __wait_for - magic wait macro
276 			ret__ = -ETIMEDOUT;				\
317 		if (now - base >= timeout) { \
318 			ret = -ETIMEDOUT; \
325 				timeout -= now - base; \
362 	 * CI results are now unreliable as the HW is very suspect.  in __add_taint_for_CI()
363 	 * CI checks the taint state after every test and will reboot  in __add_taint_for_CI()
374 	return READ_ONCE(t->expires);  in timer_active()