Linux workqueue and retire_work_handler

git-svn-id: svn://kolibrios.org@2360 a494cfbc-eb01-0410-851d-a64ba20cac60

drivers/video/drm/i915/bitmap.c

@@ -325,8 +325,6 @@ int get_driver_caps(hwcaps_t *caps)
     int ret = 0;
     ENTER();
 
-    dbgprintf("caps ptr %x\n", caps);
-
     switch(caps->idx)
     {
         case 0:

drivers/video/drm/i915/i915_dma.c

@@ -508,15 +508,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
      * so there is no point in running more than one instance of the
      * workqueue at any time: max_active = 1 and NON_REENTRANT.
      */
-
+      dev_priv->wq = alloc_workqueue("i915",
-//    dev_priv->wq = alloc_workqueue("i915",
+                         WQ_UNBOUND | WQ_NON_REENTRANT,
-//                       WQ_UNBOUND | WQ_NON_REENTRANT,
+                         1);
-//                       1);
+      if (dev_priv->wq == NULL) {
-//    if (dev_priv->wq == NULL) {
+          DRM_ERROR("Failed to create our workqueue.\n");
-//        DRM_ERROR("Failed to create our workqueue.\n");
+          ret = -ENOMEM;
-//        ret = -ENOMEM;
+          goto out_mtrrfree;
-//        goto out_mtrrfree;
+      }
-//    }
 
     /* enable GEM by default */
     dev_priv->has_gem = 1;

drivers/video/drm/i915/i915_drv.h

@@ -40,6 +40,7 @@
 
 #include <linux/spinlock.h>
 
+
 /* General customization:
  */
 
@@ -329,7 +330,7 @@ typedef struct drm_i915_private {
 	u32 pch_irq_mask;
 
 	u32 hotplug_supported_mask;
-//   struct work_struct hotplug_work;
+	struct work_struct hotplug_work;
 
 	int tex_lru_log_granularity;
 	int allow_batchbuffer;
@@ -397,10 +398,10 @@ typedef struct drm_i915_private {
 	unsigned int fsb_freq, mem_freq, is_ddr3;
 
 	spinlock_t error_lock;
-//   struct drm_i915_error_state *first_error;
+//	struct drm_i915_error_state *first_error;
-//   struct work_struct error_work;
+	struct work_struct error_work;
-//   struct completion error_completion;
+//	struct completion error_completion;
-//   struct workqueue_struct *wq;
+    struct workqueue_struct *wq;
 
 	/* Display functions */
     struct drm_i915_display_funcs display;
@@ -642,7 +643,7 @@ typedef struct drm_i915_private {
 		 * fire periodically while the ring is running. When it
 		 * fires, go retire requests.
 		 */
-//       struct delayed_work retire_work;
+		struct delayed_work retire_work;
 
 		/**
 		 * Are we in a non-interruptible section of code like
@@ -699,7 +700,7 @@ typedef struct drm_i915_private {
 	bool lvds_downclock_avail;
 	/* indicates the reduced downclock for LVDS*/
 	int lvds_downclock;
-//   struct work_struct idle_work;
+	struct work_struct idle_work;
     struct timer_list idle_timer;
 	bool busy;
 	u16 orig_clock;
@@ -710,7 +711,7 @@ typedef struct drm_i915_private {
 
 	bool mchbar_need_disable;
 
-//   struct work_struct rps_work;
+	struct work_struct rps_work;
 	spinlock_t rps_lock;
 	u32 pm_iir;
 
@@ -1416,4 +1417,18 @@ typedef struct
   int freq;
 }videomode_t;
 
+
+static inline int mutex_trylock(struct mutex *lock)
+{
+    if (likely(atomic_cmpxchg(&lock->count, 1, 0) == 1))
+        return 1;
+    return 0;
+}
+
+
+
+
+
+
+
 #endif

drivers/video/drm/i915/i915_gem.c

@@ -960,16 +960,16 @@ i915_add_request(struct intel_ring_buffer *ring,
 
 	ring->outstanding_lazy_request = false;
 
-//	if (!dev_priv->mm.suspended) {
+	if (!dev_priv->mm.suspended) {
-//		if (i915_enable_hangcheck) {
+		if (i915_enable_hangcheck) {
 //			mod_timer(&dev_priv->hangcheck_timer,
 //				  jiffies +
 //				  msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD));
-//		}
+		}
-//		if (was_empty)
+        if (was_empty)
-//			queue_delayed_work(dev_priv->wq,
+           queue_delayed_work(dev_priv->wq,
-//					   &dev_priv->mm.retire_work, HZ);
+                      &dev_priv->mm.retire_work, HZ);
-//	}
+	}
 	return 0;
 }
 
@@ -982,6 +982,16 @@ i915_add_request(struct intel_ring_buffer *ring,
 
 
 
+
+
+
+
+
+
+
+
+
+
 
 
 /**
@@ -1072,14 +1082,57 @@ i915_gem_retire_requests(struct drm_device *dev)
 		i915_gem_retire_requests_ring(&dev_priv->ring[i]);
 }
 
+static void
+i915_gem_retire_work_handler(struct work_struct *work)
+{
+	drm_i915_private_t *dev_priv;
+	struct drm_device *dev;
+	bool idle;
+	int i;
 
+//    ENTER();
 
+	dev_priv = container_of(work, drm_i915_private_t,
+				mm.retire_work.work);
+	dev = dev_priv->dev;
 
+	/* Come back later if the device is busy... */
+	if (!mutex_trylock(&dev->struct_mutex)) {
+        queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
+//        LEAVE();
+		return;
+	}
 
+	i915_gem_retire_requests(dev);
 
+	/* Send a periodic flush down the ring so we don't hold onto GEM
+	 * objects indefinitely.
+	 */
+	idle = true;
+	for (i = 0; i < I915_NUM_RINGS; i++) {
+		struct intel_ring_buffer *ring = &dev_priv->ring[i];
 
+		if (!list_empty(&ring->gpu_write_list)) {
+			struct drm_i915_gem_request *request;
+			int ret;
 
+			ret = i915_gem_flush_ring(ring,
+						  0, I915_GEM_GPU_DOMAINS);
+			request = kzalloc(sizeof(*request), GFP_KERNEL);
+			if (ret || request == NULL ||
+			    i915_add_request(ring, NULL, request))
+			    kfree(request);
+		}
 
+		idle &= list_empty(&ring->request_list);
+	}
+
+   if (!dev_priv->mm.suspended && !idle)
+       queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
+
+	mutex_unlock(&dev->struct_mutex);
+//    LEAVE();
+}
 
 /**
  * Waits for a sequence number to be signaled, and cleans up the
@@ -1326,7 +1379,7 @@ static int i915_ring_idle(struct intel_ring_buffer *ring)
 			return ret;
 	}
 
-	return 0; //i915_wait_request(ring, i915_gem_next_request_seqno(ring));
+	return i915_wait_request(ring, i915_gem_next_request_seqno(ring));
 }
 
 int
@@ -1923,9 +1976,9 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
 	 * of uncaching, which would allow us to flush all the LLC-cached data
 	 * with that bit in the PTE to main memory with just one PIPE_CONTROL.
 	 */
-//   ret = i915_gem_object_set_cache_level(obj, I915_CACHE_NONE);
+	ret = i915_gem_object_set_cache_level(obj, I915_CACHE_NONE);
-//   if (ret)
+	if (ret)
-//       return ret;
+		return ret;
 
 	/* As the user may map the buffer once pinned in the display plane
 	 * (e.g. libkms for the bootup splash), we have to ensure that we
@@ -2123,6 +2176,7 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
 	}
 	obj->pin_mappable |= map_and_fenceable;
 
+	WARN_ON(i915_verify_lists(dev));
 	return 0;
 }
 
@@ -2132,6 +2186,7 @@ i915_gem_object_unpin(struct drm_i915_gem_object *obj)
 	struct drm_device *dev = obj->base.dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 
+	WARN_ON(i915_verify_lists(dev));
 	BUG_ON(obj->pin_count == 0);
 	BUG_ON(obj->gtt_space == NULL);
 
@@ -2141,6 +2196,7 @@ i915_gem_object_unpin(struct drm_i915_gem_object *obj)
 				       &dev_priv->mm.inactive_list);
 		obj->pin_mappable = false;
 	}
+	WARN_ON(i915_verify_lists(dev));
 }
 
 
@@ -2424,6 +2480,8 @@ i915_gem_load(struct drm_device *dev)
         init_ring_lists(&dev_priv->ring[i]);
 	for (i = 0; i < I915_MAX_NUM_FENCES; i++)
         INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list);
+	INIT_DELAYED_WORK(&dev_priv->mm.retire_work,
+			  i915_gem_retire_work_handler);
 
     /* On GEN3 we really need to make sure the ARB C3 LP bit is set */
     if (IS_GEN3(dev)) {
@@ -2457,4 +2515,3 @@ i915_gem_load(struct drm_device *dev)
 }
 
 
-

drivers/video/drm/i915/i915_gem_gtt.c

@@ -143,7 +143,6 @@ void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
 				       agp_type);
 }
 
-
 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj)
 {
 	struct drm_device *dev = obj->base.dev;

drivers/video/drm/i915/intel_bios.c

@@ -656,7 +656,7 @@ intel_parse_bios(struct drm_device *dev)
 		size_t size;
 		int i;
 
-        bios = (void*)pci_map_rom(pdev, &size);
+		bios = pci_map_rom(pdev, &size);
 		if (!bios)
 			return -1;
 

drivers/video/drm/i915/intel_display.c

@@ -1859,7 +1859,7 @@ static void intel_update_fbc(struct drm_device *dev)
 	if (enable_fbc < 0) {
 		DRM_DEBUG_KMS("fbc set to per-chip default\n");
 		enable_fbc = 1;
-		if (INTEL_INFO(dev)->gen <= 5)
+		if (INTEL_INFO(dev)->gen <= 6)
 			enable_fbc = 0;
 	}
 	if (!enable_fbc) {
@@ -2171,18 +2171,12 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
 
-    ENTER();
-
 	ret = dev_priv->display.update_plane(crtc, fb, x, y);
 	if (ret)
-    {
-        LEAVE();
 		return ret;
-    };
 
 	intel_update_fbc(dev);
 	intel_increase_pllclock(crtc);
-    LEAVE();
 
 	return 0;
 }
@@ -2235,31 +2229,6 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
     LEAVE();
     return 0;
 
-#if 0
-	if (!dev->primary->master)
-    {
-        LEAVE();
-		return 0;
-    };
-
-	master_priv = dev->primary->master->driver_priv;
-	if (!master_priv->sarea_priv)
-    {
-        LEAVE();
-		return 0;
-    };
-
-	if (intel_crtc->pipe) {
-		master_priv->sarea_priv->pipeB_x = x;
-		master_priv->sarea_priv->pipeB_y = y;
-	} else {
-		master_priv->sarea_priv->pipeA_x = x;
-		master_priv->sarea_priv->pipeA_y = y;
-	}
-    LEAVE();
-
-	return 0;
-#endif
 
 }
 
@@ -2835,8 +2804,8 @@ static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
 
 	obj = to_intel_framebuffer(crtc->fb)->obj;
 	dev_priv = crtc->dev->dev_private;
-//	wait_event(dev_priv->pending_flip_queue,
+	wait_event(dev_priv->pending_flip_queue,
-//		   atomic_read(&obj->pending_flip) == 0);
+		   atomic_read(&obj->pending_flip) == 0);
 }
 
 static bool intel_crtc_driving_pch(struct drm_crtc *crtc)
@@ -5292,6 +5261,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
         }
     }
 
+	pipeconf &= ~PIPECONF_INTERLACE_MASK;
     if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
         pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
         /* the chip adds 2 halflines automatically */
@@ -5302,7 +5272,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
         adjusted_mode->crtc_vsync_end -= 1;
         adjusted_mode->crtc_vsync_start -= 1;
     } else
-		pipeconf &= ~PIPECONF_INTERLACE_MASK; /* progressive */
+		pipeconf |= PIPECONF_PROGRESSIVE;
 
     I915_WRITE(HTOTAL(pipe),
            (adjusted_mode->crtc_hdisplay - 1) |
@@ -5889,6 +5859,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
     }
 	}
 
+	pipeconf &= ~PIPECONF_INTERLACE_MASK;
     if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
         pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
         /* the chip adds 2 halflines automatically */
@@ -5899,7 +5870,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
         adjusted_mode->crtc_vsync_end -= 1;
         adjusted_mode->crtc_vsync_start -= 1;
     } else
-        pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */
+		pipeconf |= PIPECONF_PROGRESSIVE;
 
     I915_WRITE(HTOTAL(pipe),
            (adjusted_mode->crtc_hdisplay - 1) |
@@ -7043,10 +7014,6 @@ static void intel_setup_outputs(struct drm_device *dev)
 
 
 
-static const struct drm_mode_config_funcs intel_mode_funcs = {
-	.fb_create = NULL /*intel_user_framebuffer_create*/,
-	.output_poll_changed = NULL /*intel_fb_output_poll_changed*/,
-};
 
 
 
@@ -7100,7 +7067,10 @@ int intel_framebuffer_init(struct drm_device *dev,
 }
 
 
-
+static const struct drm_mode_config_funcs intel_mode_funcs = {
+	.fb_create = NULL /*intel_user_framebuffer_create*/,
+	.output_poll_changed = NULL /*intel_fb_output_poll_changed*/,
+};
 
 
 

drivers/video/drm/i915/intel_drv.h

@@ -276,7 +276,7 @@ intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 }
 
 struct intel_unpin_work {
-//   struct work_struct work;
+	struct work_struct work;
 	struct drm_device *dev;
 	struct drm_i915_gem_object *old_fb_obj;
 	struct drm_i915_gem_object *pending_flip_obj;
@@ -286,7 +286,7 @@ struct intel_unpin_work {
 };
 
 struct intel_fbc_work {
-//   struct delayed_work work;
+	struct delayed_work work;
 	struct drm_crtc *crtc;
 	struct drm_framebuffer *fb;
 	int interval;

drivers/video/drm/i915/kms_display.c

@@ -1007,3 +1007,120 @@ int blit_textured(u32 hbitmap, int  dst_x, int dst_y,
 
 };
 
+
+void __stdcall run_workqueue(struct workqueue_struct *cwq)
+{
+    unsigned long irqflags;
+
+//    dbgprintf("wq: %x head %x, next %x\n",
+//               cwq, &cwq->worklist, cwq->worklist.next);
+
+    spin_lock_irqsave(&cwq->lock, irqflags);
+
+    while (!list_empty(&cwq->worklist))
+    {
+        struct work_struct *work = list_entry(cwq->worklist.next,
+                                        struct work_struct, entry);
+        work_func_t f = work->func;
+        list_del_init(cwq->worklist.next);
+//        dbgprintf("head %x, next %x\n",
+//                  &cwq->worklist, cwq->worklist.next);
+
+        spin_unlock_irqrestore(&cwq->lock, irqflags);
+        f(work);
+        spin_lock_irqsave(&cwq->lock, irqflags);
+    }
+
+    spin_unlock_irqrestore(&cwq->lock, irqflags);
+}
+
+
+static inline
+int __queue_work(struct workqueue_struct *wq,
+                         struct work_struct *work)
+{
+    unsigned long flags;
+//    ENTER();
+
+//    dbgprintf("wq: %x, work: %x\n",
+//               wq, work );
+
+    if(!list_empty(&work->entry))
+        return 0;
+
+    spin_lock_irqsave(&wq->lock, flags);
+
+    if(list_empty(&wq->worklist))
+        TimerHs(0,0, run_workqueue, wq);
+
+    list_add_tail(&work->entry, &wq->worklist);
+
+    spin_unlock_irqrestore(&wq->lock, flags);
+//    dbgprintf("wq: %x head %x, next %x\n",
+//               wq, &wq->worklist, wq->worklist.next);
+
+//    LEAVE();
+    return 1;
+};
+
+void __stdcall delayed_work_timer_fn(unsigned long __data)
+{
+//    ENTER();
+    struct delayed_work *dwork = (struct delayed_work *)__data;
+    struct workqueue_struct *wq = dwork->work.data;
+
+//    dbgprintf("wq: %x, work: %x\n",
+//               wq, &dwork->work );
+
+    __queue_work(wq, &dwork->work);
+//    LEAVE();
+}
+
+
+int queue_delayed_work_on(struct workqueue_struct *wq,
+                        struct delayed_work *dwork, unsigned long delay)
+{
+    struct work_struct *work = &dwork->work;
+
+    work->data = wq;
+    TimerHs(0,0, delayed_work_timer_fn, dwork);
+    return 1;
+}
+
+int queue_delayed_work(struct workqueue_struct *wq,
+                        struct delayed_work *dwork, unsigned long delay)
+{
+    u32  flags;
+//    ENTER();
+
+//    dbgprintf("wq: %x, work: %x\n",
+//               wq, &dwork->work );
+
+    if (delay == 0)
+        return __queue_work(wq, &dwork->work);
+
+    return queue_delayed_work_on(wq, dwork, delay);
+}
+
+
+struct workqueue_struct *alloc_workqueue(const char *fmt,
+                           unsigned int flags,
+                           int max_active)
+{
+    struct workqueue_struct *wq;
+
+    wq = kzalloc(sizeof(*wq),0);
+    if (!wq)
+        goto err;
+
+    INIT_LIST_HEAD(&wq->worklist);
+
+    return wq;
+err:
+    return NULL;
+}
+
+
+
+
+

drivers/video/drm/i915/render/exa_wm_mask_affine.g6b

@@ -0,0 +1,4 @@
+   { 0x0060005a, 0x210077be, 0x00000100, 0x008d0040 },
+   { 0x0060005a, 0x212077be, 0x00000100, 0x008d0080 },
+   { 0x0060005a, 0x214077be, 0x00000110, 0x008d0040 },
+   { 0x0060005a, 0x216077be, 0x00000110, 0x008d0080 },

drivers/video/drm/i915/render/exa_wm_mask_sample_a.g6b

@@ -0,0 +1,3 @@
+   { 0x00000201, 0x20080061, 0x00000000, 0x00007000 },
+   { 0x00600001, 0x20e00022, 0x008d0000, 0x00000000 },
+   { 0x02800031, 0x23801cc9, 0x000000e0, 0x0a2a0102 },

drivers/video/drm/i915/render/exa_wm_noca.g6b

@@ -0,0 +1,4 @@
+   { 0x00800041, 0x21c077bd, 0x008d01c0, 0x008d0380 },
+   { 0x00800041, 0x220077bd, 0x008d0200, 0x008d0380 },
+   { 0x00800041, 0x224077bd, 0x008d0240, 0x008d0380 },
+   { 0x00800041, 0x228077bd, 0x008d0280, 0x008d0380 },

drivers/video/drm/i915/sna/gen6_render.c

@@ -72,9 +72,12 @@ static const uint32_t ps_kernel_nomask_affine[][4] = {
 #include "exa_wm_write.g6b"
 };
 
-static const uint32_t ps_kernel_nomask_projective[][4] = {
+static const uint32_t ps_kernel_masknoca_affine[][4] = {
-#include "exa_wm_src_projective.g6b"
+#include "exa_wm_src_affine.g6b"
 #include "exa_wm_src_sample_argb.g6b"
+#include "exa_wm_mask_affine.g6b"
+#include "exa_wm_mask_sample_a.g6b"
+#include "exa_wm_noca.g6b"
 #include "exa_wm_write.g6b"
 };
 
@@ -88,8 +91,7 @@ static const struct wm_kernel_info {
 	Bool has_mask;
 } wm_kernels[] = {
 	KERNEL(NOMASK, ps_kernel_nomask_affine, FALSE),
-	KERNEL(NOMASK_PROJECTIVE, ps_kernel_nomask_projective, FALSE),
+    KERNEL(MASK, ps_kernel_masknoca_affine, TRUE),
-
 };
 #undef KERNEL
 
@@ -659,11 +661,6 @@ gen6_emit_drawing_rectangle(struct sna *sna,
 
 	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
 	OUT_BATCH(GEN6_PIPE_CONTROL_WRITE_TIME);
-//   OUT_BATCH(kgem_add_reloc(&sna->kgem, sna->kgem.nbatch,
-//                sna->render_state.gen6.general_bo,
-//                I915_GEM_DOMAIN_INSTRUCTION << 16 |
-//                I915_GEM_DOMAIN_INSTRUCTION,
-//                64));
 
     OUT_BATCH(sna->render_state.gen6.general_bo->gaddr+64);
 
@@ -1618,7 +1615,6 @@ gen6_emit_copy_state(struct sna *sna,
 	bool dirty;
 
 	gen6_get_batch(sna);
-//   dirty = kgem_bo_is_dirty(op->dst.bo);
 
 	binding_table = gen6_composite_get_binding_table(sna, &offset);
 
@@ -1713,9 +1709,6 @@ gen6_render_copy(struct sna *sna, uint8_t alu,
     op.src.width  = src->width;
     op.src.height = src->height;
 
-//    src_scale_x = ((float)src_w / frame->width) / (float)drw_w;
-//    src_scale_y = ((float)src_h / frame->height) / (float)drw_h;
-
     op.src.scale[0] = 1.f/w;            //src->width;
     op.src.scale[1] = 1.f/h;            //src->height;
     op.src.filter = SAMPLER_FILTER_BILINEAR;

drivers/video/drm/i915/sna/sna_render.h

@@ -243,7 +243,7 @@ struct sna_render {
 
 enum {
 	GEN6_WM_KERNEL_NOMASK = 0,
-	GEN6_WM_KERNEL_NOMASK_PROJECTIVE,
+    GEN6_WM_KERNEL_MASK,
 
     GEN6_KERNEL_COUNT
 };
@@ -277,23 +277,6 @@ struct gen6_render_state {
 	Bool needs_invariant;
 };
 
-enum {
-	GEN7_WM_KERNEL_NOMASK = 0,
-	GEN7_WM_KERNEL_NOMASK_PROJECTIVE,
-
-	GEN7_WM_KERNEL_MASK,
-	GEN7_WM_KERNEL_MASK_PROJECTIVE,
-
-	GEN7_WM_KERNEL_MASKCA,
-	GEN7_WM_KERNEL_MASKCA_PROJECTIVE,
-
-	GEN7_WM_KERNEL_MASKCA_SRCALPHA,
-	GEN7_WM_KERNEL_MASKCA_SRCALPHA_PROJECTIVE,
-
-	GEN7_WM_KERNEL_VIDEO_PLANAR,
-	GEN7_WM_KERNEL_VIDEO_PACKED,
-	GEN7_KERNEL_COUNT
-};
 
 
 struct sna_static_stream {