Merge tag 'drm-intel-next-2019-08-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- More TGL enabling work (Michel, Jose, Lucas)
- Fixes on DP MST (Ville)
- More GTT and Execlists fixes and improvements (Chris)
- Code style clean-up on hdmi and dp side (Jani)
- Fix null pointer dereferrence (Xiong)
- Fix a couple of missing serialization on selftests (Chris)
- More vm locking rework (Chris)

drm-intel-next-2019-08-20:
- GuC and HuC related fixes and improvements (Daniele, Michal)
- Improve debug with more engine information and rework on debugfs files (Chris, Stuart)
- Simplify appearture address handling (Chris)
- Other fixes and cleanups around engines and execlists (Chris)
- Selftests fixes (Matt, Chris)
- Gen11 cache flush related fixes and improvements (Mika)
- More work around requests, timelines and locks to allow removal of struct_mutex (Chris)
- Add missing CML PCI ID (Anusha)
- More work on the new i915 buddy allocator (Matt)
- More headers, files and directories reorg (Daniele)
- Improvements on ggtt’s get pdp (Mika)
- Fix GPU reset (Chris)
- Fix GPIO pins on gen11 (Matt)
- Fix HW readout for crtc_clock in HDMI mode (Imre)
- Sanitize display Phy during unitit to workaround messages of HW state change during suspend (Imre)
- Be defensive when starting vma activity (Chris)
- More Tiger Lake enabling work (Michel, Daniele, Lucas)
- Relax pd_used assertion (Chris)

drm-intel-next-2019-08-13:
- More Tiger Lake enabling work (Lucas, Jose, Tomasz, Michel, Jordan, Anusha, Vandita)
- More selftest organization reworks, fixes and improvements (Lucas, Chris)
- Simplifications on GEM code like context and cleanup_early (Chris, Daniele)
- GuC and HuC related fixes and improvements (Daniele, Michal, Chris)
- Some clean up and fixes on headers, Makefile, and generated files (Lucas, Jani)
- MOCS setup clean up (Tvrtko)
- More Elkhartlake enabling work (Jose, Matt)
- Fix engine reset by clearing in flight execlists requests (Chris)
- Fix possible memory leak on intel_hdcp_auth_downstream (Wei)
- Introduce intel_gt_runtime_suspend/resume (Daniele)
- PMU improvements (Tvrtko)
- Flush extra hard after writing relocations through the GTT (Chris)
- Documentations fixes (Michal, Chris)
- Report dma_reserv allocation failure (Chris)
- Improvements around shrinker (Chris)
- More improvements around engine handling (Chris)
- Also more s/dev_priv/i915 (Chris)
- Abstract display suspend/resume operations (Rodrigo/Jani)
- Drop VM_IO from GTT mappings (Chris)
- Fix some NULL vs IS_ERR conditions (Dan)
- General improvements on error state (Chris)
- Isolate i915_getparam_iocrtl to its own file (Chris)
- Perf OA object refactor (Umesh)
- Ignore central i915->kernel_context and allocate it directly (Chris)
- More fixes and improvements around wakerefs (Chris)
- Clean-up and improvements around debugfs (Chris)
- Free the imported shmemfs file for phys objects (Chris)
- Many other fix and cleanups around engines and execlists (Chris)
- Split out uncore_mmio_debug (Daniele)
- Memory management fixes for blk and gtt (Matt)
- Introduction of buddy allocator to handle huge-pages for GTT (Matt)
- Fix ICL and TGL PG3 power domains (Anshuman)
- Extract GT IRQ to gt/ (Andi)
- Drop last_fence tracking in favor of whole vma->active (Chris)
- Make overlay to use i915_active instead of i915_active_request (Chris)
- Move misc display IRQ handling to its own function (Jose)
- Introduce new _TRANS2() macro in preparation for some coming PSR related work (Jose)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823051435.GA23885@intel.com

1 files changed, 49 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
index 4920ff9aba62..562f756da421 100644
--- a/drivers/gpu/drm/i915/i915_utils.h
+++ b/drivers/gpu/drm/i915/i915_utils.h
@@ -31,6 +31,8 @@
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
+struct drm_i915_private;
+
 #undef WARN_ON
 /* Many gcc seem to no see through this and fall over :( */
 #if 0
@@ -49,6 +51,34 @@
 #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
 			     __stringify(x), (long)(x))
 
+void __printf(3, 4)
+__i915_printk(struct drm_i915_private *dev_priv, const char *level,
+	      const char *fmt, ...);
+
+#define i915_report_error(dev_priv, fmt, ...)				   \
+	__i915_printk(dev_priv, KERN_ERR, fmt, ##__VA_ARGS__)
+
+#if IS_ENABLED(CONFIG_DRM_I915_DEBUG)
+
+int __i915_inject_load_error(struct drm_i915_private *i915, int err,
+			     const char *func, int line);
+#define i915_inject_load_error(_i915, _err) \
+	__i915_inject_load_error((_i915), (_err), __func__, __LINE__)
+bool i915_error_injected(void);
+
+#else
+
+#define i915_inject_load_error(_i915, _err) 0
+#define i915_error_injected() false
+
+#endif
+
+#define i915_inject_probe_failure(i915) i915_inject_load_error((i915), -ENODEV)
+
+#define i915_probe_error(i915, fmt, ...)				   \
+	__i915_printk(i915, i915_error_injected() ? KERN_DEBUG : KERN_ERR, \
+		      fmt, ##__VA_ARGS__)
+
 #if defined(GCC_VERSION) && GCC_VERSION >= 70000
 #define add_overflows_t(T, A, B) \
 	__builtin_add_overflow_p((A), (B), (T)0)
@@ -131,17 +161,15 @@ __check_struct_size(size_t base, size_t arr, size_t count, size_t *size)
 	((typeof(ptr))((unsigned long)(ptr) | __bits));			\
 })
 
-#define ptr_count_dec(p_ptr) do {					\
-	typeof(p_ptr) __p = (p_ptr);					\
-	unsigned long __v = (unsigned long)(*__p);			\
-	*__p = (typeof(*p_ptr))(--__v);					\
-} while (0)
+#define ptr_dec(ptr) ({							\
+	unsigned long __v = (unsigned long)(ptr);			\
+	(typeof(ptr))(__v - 1);						\
+})
 
-#define ptr_count_inc(p_ptr) do {					\
-	typeof(p_ptr) __p = (p_ptr);					\
-	unsigned long __v = (unsigned long)(*__p);			\
-	*__p = (typeof(*p_ptr))(++__v);					\
-} while (0)
+#define ptr_inc(ptr) ({							\
+	unsigned long __v = (unsigned long)(ptr);			\
+	(typeof(ptr))(__v + 1);						\
+})
 
 #define page_mask_bits(ptr) ptr_mask_bits(ptr, PAGE_SHIFT)
 #define page_unmask_bits(ptr) ptr_unmask_bits(ptr, PAGE_SHIFT)
@@ -382,4 +410,15 @@ static inline const char *enableddisabled(bool v)
 	return v ? "enabled" : "disabled";
 }
 
+static inline void add_taint_for_CI(unsigned int taint)
+{
+	/*
+	 * The system is "ok", just about surviving for the user, but
+	 * CI results are now unreliable as the HW is very suspect.
+	 * CI checks the taint state after every test and will reboot
+	 * the machine if the kernel is tainted.
+	 */
+	add_taint(taint, LOCKDEP_STILL_OK);
+}
+
 #endif /* !__I915_UTILS_H */