Merge remote branch 'korg/drm-radeon-testing' into drm-linus

* korg/drm-radeon-testing:
  drm/radeon/kms: Use radeon_agp_disable when disabling AGP
  drm/radeon/kms: Disable AGP is aperture size < 32M
  drm/radeon/kms: Fix r600 blit cleanup path
  drm/radeon/kms: Do not unpin buffer in fb destruction
  drm/radeon/kms: fix displayport->dvi connector DDC.

drivers/gpu/drm/radeon/r100.c

@@ -3399,9 +3399,7 @@ int r100_mc_init(struct radeon_device *rdev)
 	if (rdev->flags & RADEON_IS_AGP) {
 		r = radeon_agp_init(rdev);
 		if (r) {
-			printk(KERN_WARNING "[drm] Disabling AGP\n");
-			rdev->flags &= ~RADEON_IS_AGP;
-			rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+			radeon_agp_disable(rdev);
 		} else {
 			rdev->mc.gtt_location = rdev->mc.agp_base;
 		}

drivers/gpu/drm/radeon/r420.c

@@ -50,9 +50,7 @@ int r420_mc_init(struct radeon_device *rdev)
 	if (rdev->flags & RADEON_IS_AGP) {
 		r = radeon_agp_init(rdev);
 		if (r) {
-			printk(KERN_WARNING "[drm] Disabling AGP\n");
-			rdev->flags &= ~RADEON_IS_AGP;
-			rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+			radeon_agp_disable(rdev);
 		} else {
 			rdev->mc.gtt_location = rdev->mc.agp_base;
 		}

drivers/gpu/drm/radeon/r600.c

@@ -624,7 +624,6 @@ int r600_mc_init(struct radeon_device *rdev)
 	fixed20_12 a;
 	u32 tmp;
 	int chansize, numchan;
-	int r;
 
 	/* Get VRAM informations */
 	rdev->mc.vram_is_ddr = true;
@@ -667,9 +666,6 @@ int r600_mc_init(struct radeon_device *rdev)
 		rdev->mc.real_vram_size = rdev->mc.aper_size;
 
 	if (rdev->flags & RADEON_IS_AGP) {
-		r = radeon_agp_init(rdev);
-		if (r)
-			return r;
 		/* gtt_size is setup by radeon_agp_init */
 		rdev->mc.gtt_location = rdev->mc.agp_base;
 		tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
@@ -1961,11 +1957,13 @@ int r600_suspend(struct radeon_device *rdev)
 	r600_wb_disable(rdev);
 	r600_pcie_gart_disable(rdev);
 	/* unpin shaders bo */
-	r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
-	if (unlikely(r != 0))
-		return r;
-	radeon_bo_unpin(rdev->r600_blit.shader_obj);
-	radeon_bo_unreserve(rdev->r600_blit.shader_obj);
+	if (rdev->r600_blit.shader_obj) {
+		r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
+		if (!r) {
+			radeon_bo_unpin(rdev->r600_blit.shader_obj);
+			radeon_bo_unreserve(rdev->r600_blit.shader_obj);
+		}
+	}
 	return 0;
 }
 
@@ -2026,6 +2024,11 @@ int r600_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
+	if (rdev->flags & RADEON_IS_AGP) {
+		r = radeon_agp_init(rdev);
+		if (r)
+			radeon_agp_disable(rdev);
+	}
 	r = r600_mc_init(rdev);
 	if (r)
 		return r;

drivers/gpu/drm/radeon/r600_blit_kms.c

@@ -512,14 +512,16 @@ void r600_blit_fini(struct radeon_device *rdev)
 {
 	int r;
 
+	if (rdev->r600_blit.shader_obj == NULL)
+		return;
+	/* If we can't reserve the bo, unref should be enough to destroy
+	 * it when it becomes idle.
+	 */
 	r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
-	if (unlikely(r != 0)) {
-		dev_err(rdev->dev, "(%d) can't finish r600 blit\n", r);
-		goto out_unref;
+	if (!r) {
+		radeon_bo_unpin(rdev->r600_blit.shader_obj);
+		radeon_bo_unreserve(rdev->r600_blit.shader_obj);
 	}
-	radeon_bo_unpin(rdev->r600_blit.shader_obj);
-	radeon_bo_unreserve(rdev->r600_blit.shader_obj);
-out_unref:
 	radeon_bo_unref(&rdev->r600_blit.shader_obj);
 }
 

drivers/gpu/drm/radeon/radeon.h

@@ -1017,6 +1017,8 @@ static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
 #define radeon_hpd_set_polarity(rdev, hpd) (rdev)->asic->hpd_set_polarity((rdev), (hpd))
 
 /* Common functions */
+/* AGP */
+extern void radeon_agp_disable(struct radeon_device *rdev);
 extern int radeon_gart_table_vram_pin(struct radeon_device *rdev);
 extern int radeon_modeset_init(struct radeon_device *rdev);
 extern void radeon_modeset_fini(struct radeon_device *rdev);

drivers/gpu/drm/radeon/radeon_agp.c

@@ -133,6 +133,13 @@ int radeon_agp_init(struct radeon_device *rdev)
 	bool is_v3;
 	int ret;
 
+	if (rdev->ddev->agp->agp_info.aper_size < 32) {
+		dev_warn(rdev->dev, "AGP aperture to small (%dM) "
+			"need at least 32M, disabling AGP\n",
+			rdev->ddev->agp->agp_info.aper_size);
+		return -EINVAL;
+	}
+
 	/* Acquire AGP. */
 	if (!rdev->ddev->agp->acquired) {
 		ret = drm_agp_acquire(rdev->ddev);

drivers/gpu/drm/radeon/radeon_device.c

@@ -544,6 +544,7 @@ void radeon_agp_disable(struct radeon_device *rdev)
 		rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
 		rdev->asic->gart_set_page = &r100_pci_gart_set_page;
 	}
+	rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 }
 
 void radeon_check_arguments(struct radeon_device *rdev)

drivers/gpu/drm/radeon/radeon_display.c

@@ -357,7 +357,8 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
 	if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
 	    (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
-		if (dig->dp_i2c_bus)
+		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
+		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
 			radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
 	}
 	if (!radeon_connector->ddc_bus)
@@ -667,7 +668,6 @@ static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
 		radeonfb_remove(dev, fb);
 
 	if (radeon_fb->obj) {
-		radeon_gem_object_unpin(radeon_fb->obj);
 		mutex_lock(&dev->struct_mutex);
 		drm_gem_object_unreference(radeon_fb->obj);
 		mutex_unlock(&dev->struct_mutex);

drivers/gpu/drm/radeon/rv770.c

@@ -779,7 +779,6 @@ int rv770_mc_init(struct radeon_device *rdev)
 	fixed20_12 a;
 	u32 tmp;
 	int chansize, numchan;
-	int r;
 
 	/* Get VRAM informations */
 	rdev->mc.vram_is_ddr = true;
@@ -822,9 +821,6 @@ int rv770_mc_init(struct radeon_device *rdev)
 		rdev->mc.real_vram_size = rdev->mc.aper_size;
 
 	if (rdev->flags & RADEON_IS_AGP) {
-		r = radeon_agp_init(rdev);
-		if (r)
-			return r;
 		/* gtt_size is setup by radeon_agp_init */
 		rdev->mc.gtt_location = rdev->mc.agp_base;
 		tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
@@ -975,10 +971,12 @@ int rv770_suspend(struct radeon_device *rdev)
 	r600_wb_disable(rdev);
 	rv770_pcie_gart_disable(rdev);
 	/* unpin shaders bo */
-	r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
-	if (likely(r == 0)) {
-		radeon_bo_unpin(rdev->r600_blit.shader_obj);
-		radeon_bo_unreserve(rdev->r600_blit.shader_obj);
+	if (rdev->r600_blit.shader_obj) {
+		r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
+		if (likely(r == 0)) {
+			radeon_bo_unpin(rdev->r600_blit.shader_obj);
+			radeon_bo_unreserve(rdev->r600_blit.shader_obj);
+		}
 	}
 	return 0;
 }
@@ -1037,6 +1035,11 @@ int rv770_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
+	if (rdev->flags & RADEON_IS_AGP) {
+		r = radeon_agp_init(rdev);
+		if (r)
+			radeon_agp_disable(rdev);
+	}
 	r = rv770_mc_init(rdev);
 	if (r)
 		return r;