[PATCH 1/3] drm/radeon: Clean up reference counting and pinning of the cursor BOs

[PATCH 1/3] drm/radeon: Clean up reference counting and pinning of the cursor BOs

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer@amd.com>

Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in radeon_crtc_cursor_set2, and use
radeon_crtc->cursor_addr in radeon_set_cursor.

This fixes radeon_cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
---
 drivers/gpu/drm/radeon/radeon_cursor.c | 84 +++++++++++++++-------------------
 drivers/gpu/drm/radeon/radeon_mode.h   |  1 -
 2 files changed, 37 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 45e5406..fa66174 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -205,8 +205,9 @@ static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y)
 			| (x << 16)
 			| y));
 		/* offset is from DISP(2)_BASE_ADDRESS */
-		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
-								      (yorigin * 256)));
+		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr +
+		       yorigin * 256);
 	}
 
 	radeon_crtc->cursor_x = x;
@@ -227,51 +228,32 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
 	return ret;
 }
 
-static int radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj)
+static void radeon_set_cursor(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct radeon_device *rdev = crtc->dev->dev_private;
-	struct radeon_bo *robj = gem_to_radeon_bo(obj);
-	uint64_t gpu_addr;
-	int ret;
-
-	ret = radeon_bo_reserve(robj, false);
-	if (unlikely(ret != 0))
-		goto fail;
-	/* Only 27 bit offset for legacy cursor */
-	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
-				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
-				       &gpu_addr);
-	radeon_bo_unreserve(robj);
-	if (ret)
-		goto fail;
 
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
-		       upper_32_bits(gpu_addr));
+		       upper_32_bits(radeon_crtc->cursor_addr));
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       gpu_addr & 0xffffffff);
+		       lower_32_bits(radeon_crtc->cursor_addr));
 	} else if (ASIC_IS_AVIVO(rdev)) {
 		if (rdev->family >= CHIP_RV770) {
 			if (radeon_crtc->crtc_id)
-				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
+				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
 			else
-				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
+				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
 		}
 		WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       gpu_addr & 0xffffffff);
+		       lower_32_bits(radeon_crtc->cursor_addr));
 	} else {
-		radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr;
 		/* offset is from DISP(2)_BASE_ADDRESS */
-		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
+		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr);
 	}
-
-	return 0;
-
-fail:
-	drm_gem_object_unreference_unlocked(obj);
-
-	return ret;
 }
 
 int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
@@ -283,7 +265,9 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
 			    int32_t hot_y)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+	struct radeon_device *rdev = crtc->dev->dev_private;
 	struct drm_gem_object *obj;
+	struct radeon_bo *robj;
 	int ret;
 
 	if (!handle) {
@@ -305,6 +289,23 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
 		return -ENOENT;
 	}
 
+	robj = gem_to_radeon_bo(obj);
+	ret = radeon_bo_reserve(robj, false);
+	if (ret != 0) {
+		drm_gem_object_unreference_unlocked(obj);
+		return ret;
+	}
+	/* Only 27 bit offset for legacy cursor */
+	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
+				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
+				       &radeon_crtc->cursor_addr);
+	radeon_bo_unreserve(robj);
+	if (ret) {
+		DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret);
+		drm_gem_object_unreference_unlocked(obj);
+		return ret;
+	}
+
 	radeon_crtc->cursor_width = width;
 	radeon_crtc->cursor_height = height;
 
@@ -323,13 +324,8 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
 		radeon_crtc->cursor_hot_y = hot_y;
 	}
 
-	ret = radeon_set_cursor(crtc, obj);
-
-	if (ret)
-		DRM_ERROR("radeon_set_cursor returned %d, not changing cursor\n",
-			  ret);
-	else
-		radeon_show_cursor(crtc);
+	radeon_set_cursor(crtc);
+	radeon_show_cursor(crtc);
 
 	radeon_lock_cursor(crtc, false);
 
@@ -341,8 +337,7 @@ unpin:
 			radeon_bo_unpin(robj);
 			radeon_bo_unreserve(robj);
 		}
-		if (radeon_crtc->cursor_bo != obj)
-			drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
+		drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
 	}
 
 	radeon_crtc->cursor_bo = obj;
@@ -360,7 +355,6 @@ unpin:
 void radeon_cursor_reset(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-	int ret;
 
 	if (radeon_crtc->cursor_bo) {
 		radeon_lock_cursor(crtc, true);
@@ -368,12 +362,8 @@ void radeon_cursor_reset(struct drm_crtc *crtc)
 		radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x,
 					  radeon_crtc->cursor_y);
 
-		ret = radeon_set_cursor(crtc, radeon_crtc->cursor_bo);
-		if (ret)
-			DRM_ERROR("radeon_set_cursor returned %d, not showing "
-				  "cursor\n", ret);
-		else
-			radeon_show_cursor(crtc);
+		radeon_set_cursor(crtc);
+		radeon_show_cursor(crtc);
 
 		radeon_lock_cursor(crtc, false);
 	}
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 6de5459..07909d8 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -343,7 +343,6 @@ struct radeon_crtc {
 	int max_cursor_width;
 	int max_cursor_height;
 	uint32_t legacy_display_base_addr;
-	uint32_t legacy_cursor_offset;
 	enum radeon_rmx_type rmx_type;
 	u8 h_border;
 	u8 v_border;
-- 
2.1.4

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[PATCH 2/3] drm/radeon: unpin cursor BOs on suspend and pin them again on resume

[Michel Dänzer]

From: Grigori Goronzy <greg@chown.ath.cx>

Everything is evicted from VRAM before suspend, so we need to make
sure all BOs are unpinned and re-pinned after resume. Fixes broken
mouse cursor after resume introduced by commit b9729b17.

[Michel Dänzer: Add pinning BOs on resume]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541
Cc: stable@vger.kernel.org
Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
---
 drivers/gpu/drm/radeon/radeon_device.c | 36 ++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 12a18c8..5a075a9 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1593,6 +1593,20 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
 		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
 	}
 
+	/* unpin cursors */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
+		if (radeon_crtc->cursor_bo) {
+			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+			r = radeon_bo_reserve(robj, false);
+			if (r == 0) {
+				radeon_bo_unpin(robj);
+				radeon_bo_unreserve(robj);
+			}
+		}
+	}
+
 	/* unpin the front buffers */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
@@ -1660,6 +1674,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
 {
 	struct drm_connector *connector;
 	struct radeon_device *rdev = dev->dev_private;
+	struct drm_crtc *crtc;
 	int r;
 
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
@@ -1699,6 +1714,27 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
 
 	radeon_restore_bios_scratch_regs(rdev);
 
+	/* pin cursors */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
+		if (radeon_crtc->cursor_bo) {
+			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+			r = radeon_bo_reserve(robj, false);
+			if (r == 0) {
+				/* Only 27 bit offset for legacy cursor */
+				r = radeon_bo_pin_restricted(robj,
+							     RADEON_GEM_DOMAIN_VRAM,
+							     ASIC_IS_AVIVO(rdev) ?
+							     0 : 1 << 27,
+							     &radeon_crtc->cursor_addr);
+				if (r != 0)
+					DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
+				radeon_bo_unreserve(robj);
+			}
+		}
+	}
+
 	/* init dig PHYs, disp eng pll */
 	if (rdev->is_atom_bios) {
 		radeon_atom_encoder_init(rdev);
-- 
2.1.4

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Re: [PATCH 2/3] drm/radeon: unpin cursor BOs on suspend and pin them again on resume

[Christian König]

On 07.07.2015 09:27, Michel Dänzer wrote:
> From: Grigori Goronzy <greg@chown.ath.cx>
>
> Everything is evicted from VRAM before suspend, so we need to make
> sure all BOs are unpinned and re-pinned after resume. Fixes broken
> mouse cursor after resume introduced by commit b9729b17.
>
> [Michel Dänzer: Add pinning BOs on resume]
>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541
> Cc: stable@vger.kernel.org
> Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
> ---
>   drivers/gpu/drm/radeon/radeon_device.c | 36 ++++++++++++++++++++++++++++++++++
>   1 file changed, 36 insertions(+)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 12a18c8..5a075a9 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1593,6 +1593,20 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
>   		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
>   	}
>   
> +	/* unpin cursors */
> +	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {

Didn't we wanted to merge this into the other list_for_each_entry below?

Either way is fine with me and the whole series is Reviewed-by: 
Christian König <christian.koenig@amd.com> anyway.

Regards,
Christian.

> +		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
> +
> +		if (radeon_crtc->cursor_bo) {
> +			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
> +			r = radeon_bo_reserve(robj, false);
> +			if (r == 0) {
> +				radeon_bo_unpin(robj);
> +				radeon_bo_unreserve(robj);
> +			}
> +		}
> +	}
> +
>   	/* unpin the front buffers */
>   	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
>   		struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
> @@ -1660,6 +1674,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
>   {
>   	struct drm_connector *connector;
>   	struct radeon_device *rdev = dev->dev_private;
> +	struct drm_crtc *crtc;
>   	int r;
>   
>   	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
> @@ -1699,6 +1714,27 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
>   
>   	radeon_restore_bios_scratch_regs(rdev);
>   
> +	/* pin cursors */
> +	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
> +		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
> +
> +		if (radeon_crtc->cursor_bo) {
> +			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
> +			r = radeon_bo_reserve(robj, false);
> +			if (r == 0) {
> +				/* Only 27 bit offset for legacy cursor */
> +				r = radeon_bo_pin_restricted(robj,
> +							     RADEON_GEM_DOMAIN_VRAM,
> +							     ASIC_IS_AVIVO(rdev) ?
> +							     0 : 1 << 27,
> +							     &radeon_crtc->cursor_addr);
> +				if (r != 0)
> +					DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
> +				radeon_bo_unreserve(robj);
> +			}
> +		}
> +	}
> +
>   	/* init dig PHYs, disp eng pll */
>   	if (rdev->is_atom_bios) {
>   		radeon_atom_encoder_init(rdev);

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[PATCH 3/3] drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer@amd.com>

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
---
 drivers/gpu/drm/radeon/radeon_cursor.c | 49 +++++++++++++---------------------
 1 file changed, 19 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index fa66174..afaf346 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -91,15 +91,34 @@ static void radeon_show_cursor(struct drm_crtc *crtc)
 	struct radeon_device *rdev = crtc->dev->dev_private;
 
 	if (ASIC_IS_DCE4(rdev)) {
+		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
+		       upper_32_bits(radeon_crtc->cursor_addr));
+		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+		       lower_32_bits(radeon_crtc->cursor_addr));
 		WREG32(RADEON_MM_INDEX, EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset);
 		WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_EN |
 		       EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) |
 		       EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2));
 	} else if (ASIC_IS_AVIVO(rdev)) {
+		if (rdev->family >= CHIP_RV770) {
+			if (radeon_crtc->crtc_id)
+				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
+			else
+				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
+		}
+
+		WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+		       lower_32_bits(radeon_crtc->cursor_addr));
 		WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
 		WREG32(RADEON_MM_DATA, AVIVO_D1CURSOR_EN |
 		       (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
 	} else {
+		/* offset is from DISP(2)_BASE_ADDRESS */
+		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr);
+
 		switch (radeon_crtc->crtc_id) {
 		case 0:
 			WREG32(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL);
@@ -228,34 +247,6 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
 	return ret;
 }
 
-static void radeon_set_cursor(struct drm_crtc *crtc)
-{
-	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-	struct radeon_device *rdev = crtc->dev->dev_private;
-
-	if (ASIC_IS_DCE4(rdev)) {
-		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
-		       upper_32_bits(radeon_crtc->cursor_addr));
-		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       lower_32_bits(radeon_crtc->cursor_addr));
-	} else if (ASIC_IS_AVIVO(rdev)) {
-		if (rdev->family >= CHIP_RV770) {
-			if (radeon_crtc->crtc_id)
-				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
-				       upper_32_bits(radeon_crtc->cursor_addr));
-			else
-				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
-				       upper_32_bits(radeon_crtc->cursor_addr));
-		}
-		WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       lower_32_bits(radeon_crtc->cursor_addr));
-	} else {
-		/* offset is from DISP(2)_BASE_ADDRESS */
-		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
-		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr);
-	}
-}
-
 int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
 			    struct drm_file *file_priv,
 			    uint32_t handle,
@@ -324,7 +315,6 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
 		radeon_crtc->cursor_hot_y = hot_y;
 	}
 
-	radeon_set_cursor(crtc);
 	radeon_show_cursor(crtc);
 
 	radeon_lock_cursor(crtc, false);
@@ -362,7 +352,6 @@ void radeon_cursor_reset(struct drm_crtc *crtc)
 		radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x,
 					  radeon_crtc->cursor_y);
 
-		radeon_set_cursor(crtc);
 		radeon_show_cursor(crtc);
 
 		radeon_lock_cursor(crtc, false);
-- 
2.1.4

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Re: [PATCH 1/3] drm/radeon: Clean up reference counting and pinning of the cursor BOs

[Grigori Goronzy]

On 2015-07-07 09:27, Michel Dänzer wrote:
> From: Michel Dänzer <michel.daenzer@amd.com>
> 
> Take a GEM reference for and pin the new cursor BO, unpin and drop the
> GEM reference for the old cursor BO in radeon_crtc_cursor_set2, and use
> radeon_crtc->cursor_addr in radeon_set_cursor.
> 
> This fixes radeon_cursor_reset accidentally incrementing the cursor BO
> pin count, and cleans up the code a little.
> 

Thank you for finishing this up!

Series is
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>

> Cc: stable@vger.kernel.org
> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
> ---
>  drivers/gpu/drm/radeon/radeon_cursor.c | 84 
> +++++++++++++++-------------------
>  drivers/gpu/drm/radeon/radeon_mode.h   |  1 -
>  2 files changed, 37 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c
> b/drivers/gpu/drm/radeon/radeon_cursor.c
> index 45e5406..fa66174 100644
> --- a/drivers/gpu/drm/radeon/radeon_cursor.c
> +++ b/drivers/gpu/drm/radeon/radeon_cursor.c
> @@ -205,8 +205,9 @@ static int radeon_cursor_move_locked(struct
> drm_crtc *crtc, int x, int y)
>  			| (x << 16)
>  			| y));
>  		/* offset is from DISP(2)_BASE_ADDRESS */
> -		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
> (radeon_crtc->legacy_cursor_offset +
> -								      (yorigin * 256)));
> +		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
> +		       radeon_crtc->cursor_addr - 
> radeon_crtc->legacy_display_base_addr +
> +		       yorigin * 256);
>  	}
> 
>  	radeon_crtc->cursor_x = x;
> @@ -227,51 +228,32 @@ int radeon_crtc_cursor_move(struct drm_crtc 
> *crtc,
>  	return ret;
>  }
> 
> -static int radeon_set_cursor(struct drm_crtc *crtc, struct 
> drm_gem_object *obj)
> +static void radeon_set_cursor(struct drm_crtc *crtc)
>  {
>  	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
>  	struct radeon_device *rdev = crtc->dev->dev_private;
> -	struct radeon_bo *robj = gem_to_radeon_bo(obj);
> -	uint64_t gpu_addr;
> -	int ret;
> -
> -	ret = radeon_bo_reserve(robj, false);
> -	if (unlikely(ret != 0))
> -		goto fail;
> -	/* Only 27 bit offset for legacy cursor */
> -	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
> -				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
> -				       &gpu_addr);
> -	radeon_bo_unreserve(robj);
> -	if (ret)
> -		goto fail;
> 
>  	if (ASIC_IS_DCE4(rdev)) {
>  		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + 
> radeon_crtc->crtc_offset,
> -		       upper_32_bits(gpu_addr));
> +		       upper_32_bits(radeon_crtc->cursor_addr));
>  		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
> -		       gpu_addr & 0xffffffff);
> +		       lower_32_bits(radeon_crtc->cursor_addr));
>  	} else if (ASIC_IS_AVIVO(rdev)) {
>  		if (rdev->family >= CHIP_RV770) {
>  			if (radeon_crtc->crtc_id)
> -				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
> +				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
> +				       upper_32_bits(radeon_crtc->cursor_addr));
>  			else
> -				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
> +				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
> +				       upper_32_bits(radeon_crtc->cursor_addr));
>  		}
>  		WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
> -		       gpu_addr & 0xffffffff);
> +		       lower_32_bits(radeon_crtc->cursor_addr));
>  	} else {
> -		radeon_crtc->legacy_cursor_offset = gpu_addr -
> radeon_crtc->legacy_display_base_addr;
>  		/* offset is from DISP(2)_BASE_ADDRESS */
> -		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
> radeon_crtc->legacy_cursor_offset);
> +		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
> +		       radeon_crtc->cursor_addr - 
> radeon_crtc->legacy_display_base_addr);
>  	}
> -
> -	return 0;
> -
> -fail:
> -	drm_gem_object_unreference_unlocked(obj);
> -
> -	return ret;
>  }
> 
>  int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
> @@ -283,7 +265,9 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
>  			    int32_t hot_y)
>  {
>  	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
> +	struct radeon_device *rdev = crtc->dev->dev_private;
>  	struct drm_gem_object *obj;
> +	struct radeon_bo *robj;
>  	int ret;
> 
>  	if (!handle) {
> @@ -305,6 +289,23 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
>  		return -ENOENT;
>  	}
> 
> +	robj = gem_to_radeon_bo(obj);
> +	ret = radeon_bo_reserve(robj, false);
> +	if (ret != 0) {
> +		drm_gem_object_unreference_unlocked(obj);
> +		return ret;
> +	}
> +	/* Only 27 bit offset for legacy cursor */
> +	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
> +				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
> +				       &radeon_crtc->cursor_addr);
> +	radeon_bo_unreserve(robj);
> +	if (ret) {
> +		DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret);
> +		drm_gem_object_unreference_unlocked(obj);
> +		return ret;
> +	}
> +
>  	radeon_crtc->cursor_width = width;
>  	radeon_crtc->cursor_height = height;
> 
> @@ -323,13 +324,8 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
>  		radeon_crtc->cursor_hot_y = hot_y;
>  	}
> 
> -	ret = radeon_set_cursor(crtc, obj);
> -
> -	if (ret)
> -		DRM_ERROR("radeon_set_cursor returned %d, not changing cursor\n",
> -			  ret);
> -	else
> -		radeon_show_cursor(crtc);
> +	radeon_set_cursor(crtc);
> +	radeon_show_cursor(crtc);
> 
>  	radeon_lock_cursor(crtc, false);
> 
> @@ -341,8 +337,7 @@ unpin:
>  			radeon_bo_unpin(robj);
>  			radeon_bo_unreserve(robj);
>  		}
> -		if (radeon_crtc->cursor_bo != obj)
> -			drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
> +		drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
>  	}
> 
>  	radeon_crtc->cursor_bo = obj;
> @@ -360,7 +355,6 @@ unpin:
>  void radeon_cursor_reset(struct drm_crtc *crtc)
>  {
>  	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
> -	int ret;
> 
>  	if (radeon_crtc->cursor_bo) {
>  		radeon_lock_cursor(crtc, true);
> @@ -368,12 +362,8 @@ void radeon_cursor_reset(struct drm_crtc *crtc)
>  		radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x,
>  					  radeon_crtc->cursor_y);
> 
> -		ret = radeon_set_cursor(crtc, radeon_crtc->cursor_bo);
> -		if (ret)
> -			DRM_ERROR("radeon_set_cursor returned %d, not showing "
> -				  "cursor\n", ret);
> -		else
> -			radeon_show_cursor(crtc);
> +		radeon_set_cursor(crtc);
> +		radeon_show_cursor(crtc);
> 
>  		radeon_lock_cursor(crtc, false);
>  	}
> diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
> b/drivers/gpu/drm/radeon/radeon_mode.h
> index 6de5459..07909d8 100644
> --- a/drivers/gpu/drm/radeon/radeon_mode.h
> +++ b/drivers/gpu/drm/radeon/radeon_mode.h
> @@ -343,7 +343,6 @@ struct radeon_crtc {
>  	int max_cursor_width;
>  	int max_cursor_height;
>  	uint32_t legacy_display_base_addr;
> -	uint32_t legacy_cursor_offset;
>  	enum radeon_rmx_type rmx_type;
>  	u8 h_border;
>  	u8 v_border;
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