linux-kernel - [PATCH 1/2] drm/panfrost: Consider dma-buf imported objects as resident

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Message-ID: <20231125205438.375407-2-adrian.larumbe@collabora.com>
Date:   Sat, 25 Nov 2023 20:52:02 +0000
From:   Adrián Larumbe <adrian.larumbe@...labora.com>
To:     Boris Brezillon <boris.brezillon@...labora.com>,
        Rob Herring <robh@...nel.org>,
        Steven Price <steven.price@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Adrián Larumbe <adrian.larumbe@...labora.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: [PATCH 1/2] drm/panfrost: Consider dma-buf imported objects as resident

A GEM object constructed from a dma-buf imported sgtable should be regarded
as being memory resident, because the dma-buf API mandates backing storage
to be allocated when attachment succeeds.

Signed-off-by: Adrián Larumbe <adrian.larumbe@...labora.com>
Fixes: 9ccdac7aa822 ("drm/panfrost: Add fdinfo support for memory stats")
Reported-by: Boris Brezillon <boris.brezillon@...labora.com>
---
 drivers/gpu/drm/panfrost/panfrost_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 0cf64456e29a..d47b40b82b0b 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -200,7 +200,7 @@ static enum drm_gem_object_status panfrost_gem_status(struct drm_gem_object *obj
 	struct panfrost_gem_object *bo = to_panfrost_bo(obj);
 	enum drm_gem_object_status res = 0;
 
-	if (bo->base.pages)
+	if (bo->base.base.import_attach || bo->base.pages)
 		res |= DRM_GEM_OBJECT_RESIDENT;
 
 	if (bo->base.madv == PANFROST_MADV_DONTNEED)
-- 
2.42.0