Merge tag 'drm-intel-fixes-2018-12-07' of...

Merge tag 'drm-intel-fixes-2018-12-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix for system crash after GPU hang (Bugzilla #107945)
- GVT fix for guest graphics corruption (https://github.com/intel/gvt-linux/issues/61)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207104352.GA18214@jlahtine-desk.ger.corp.intel.com

drivers/gpu/drm/i915/gvt/fb_decoder.c

@@ -235,7 +235,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
 		plane->bpp = skl_pixel_formats[fmt].bpp;
 		plane->drm_format = skl_pixel_formats[fmt].drm_format;
 	} else {
-		plane->tiled = !!(val & DISPPLANE_TILED);
+		plane->tiled = val & DISPPLANE_TILED;
 		fmt = bdw_format_to_drm(val & DISPPLANE_PIXFORMAT_MASK);
 		plane->bpp = bdw_pixel_formats[fmt].bpp;
 		plane->drm_format = bdw_pixel_formats[fmt].drm_format;

drivers/gpu/drm/i915/i915_drv.c

@@ -1444,6 +1444,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 
 	intel_uncore_sanitize(dev_priv);
 
+	intel_gt_init_workarounds(dev_priv);
 	i915_gem_load_init_fences(dev_priv);
 
 	/* On the 945G/GM, the chipset reports the MSI capability on the

drivers/gpu/drm/i915/i915_drv.h

@@ -67,6 +67,7 @@
 #include "intel_ringbuffer.h"
 #include "intel_uncore.h"
 #include "intel_wopcm.h"
+#include "intel_workarounds.h"
 #include "intel_uc.h"
 
 #include "i915_gem.h"
@@ -1805,6 +1806,7 @@ struct drm_i915_private {
 	int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
 
 	struct i915_workarounds workarounds;
+	struct i915_wa_list gt_wa_list;
 
 	struct i915_frontbuffer_tracking fb_tracking;
 

drivers/gpu/drm/i915/i915_gem.c

@@ -5305,7 +5305,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 		}
 	}
 
-	intel_gt_workarounds_apply(dev_priv);
+	intel_gt_apply_workarounds(dev_priv);
 
 	i915_gem_init_swizzling(dev_priv);
 
@@ -5677,6 +5677,8 @@ void i915_gem_fini(struct drm_i915_private *dev_priv)
 	i915_gem_contexts_fini(dev_priv);
 	mutex_unlock(&dev_priv->drm.struct_mutex);
 
+	intel_wa_list_free(&dev_priv->gt_wa_list);
+
 	intel_cleanup_gt_powersave(dev_priv);
 
 	intel_uc_fini_misc(dev_priv);

drivers/gpu/drm/i915/intel_engine_cs.c

@@ -720,6 +720,8 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
 	__intel_context_unpin(i915->kernel_context, engine);
 
 	i915_timeline_fini(&engine->timeline);
+
+	intel_wa_list_free(&engine->wa_list);
 }
 
 u64 intel_engine_get_active_head(const struct intel_engine_cs *engine)

drivers/gpu/drm/i915/intel_lrc.c

@@ -1793,6 +1793,8 @@ static bool unexpected_starting_state(struct intel_engine_cs *engine)
 
 static int gen8_init_common_ring(struct intel_engine_cs *engine)
 {
+	intel_engine_apply_workarounds(engine);
+
 	intel_mocs_init_engine(engine);
 
 	intel_engine_reset_breadcrumbs(engine);
@@ -2491,6 +2493,8 @@ int logical_render_ring_init(struct intel_engine_cs *engine)
 			  ret);
 	}
 
+	intel_engine_init_workarounds(engine);
+
 	return 0;
 
 err_cleanup_common:

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -15,6 +15,7 @@
 #include "i915_selftest.h"
 #include "i915_timeline.h"
 #include "intel_gpu_commands.h"
+#include "intel_workarounds.h"
 
 struct drm_printer;
 struct i915_sched_attr;
@@ -440,6 +441,7 @@ struct intel_engine_cs {
 
 	struct intel_hw_status_page status_page;
 	struct i915_ctx_workarounds wa_ctx;
+	struct i915_wa_list wa_list;
 	struct i915_vma *scratch;
 
 	u32             irq_keep_mask; /* always keep these interrupts */

drivers/gpu/drm/i915/intel_workarounds.h

@@ -7,11 +7,35 @@
 #ifndef _I915_WORKAROUNDS_H_
 #define _I915_WORKAROUNDS_H_
 
+#include <linux/slab.h>
+
+struct i915_wa {
+	i915_reg_t	  reg;
+	u32		  mask;
+	u32		  val;
+};
+
+struct i915_wa_list {
+	const char	*name;
+	struct i915_wa	*list;
+	unsigned int	count;
+};
+
+static inline void intel_wa_list_free(struct i915_wa_list *wal)
+{
+	kfree(wal->list);
+	memset(wal, 0, sizeof(*wal));
+}
+
 int intel_ctx_workarounds_init(struct drm_i915_private *dev_priv);
 int intel_ctx_workarounds_emit(struct i915_request *rq);
 
-void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv);
+void intel_gt_init_workarounds(struct drm_i915_private *dev_priv);
+void intel_gt_apply_workarounds(struct drm_i915_private *dev_priv);
 
 void intel_whitelist_workarounds_apply(struct intel_engine_cs *engine);
 
+void intel_engine_init_workarounds(struct intel_engine_cs *engine);
+void intel_engine_apply_workarounds(struct intel_engine_cs *engine);
+
 #endif