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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id c19sm4770584ioi.22.2019.08.19.09.12.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Aug 2019 09:12:05 -0700 (PDT) From: Rob Herring To: dri-devel@lists.freedesktop.org Subject: [PATCH 0/4] panfrost: Locking fixes Date: Mon, 19 Aug 2019 11:12:00 -0500 Message-Id: <20190819161204.3106-1-robh@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , Tomeu Vizoso , David Airlie , Sean Paul , Steven Price , Boris Brezillon , Robin Murphy Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" With further testing of recent changes with lockdep and other locking checks enabled, we've found several bugs in the shrinker code and one sleep while atomic in panfrost_gem_open(). This series addresses those issues. Rob Rob Herring (4): drm/shmem: Do dma_unmap_sg before purging pages drm/shmem: Use mutex_trylock in drm_gem_shmem_purge drm/panfrost: Fix shrinker lockdep issues using drm_gem_shmem_purge() drm/panfrost: Fix sleeping while atomic in panfrost_gem_open drivers/gpu/drm/drm_gem_shmem_helper.c | 13 +++++++++++-- drivers/gpu/drm/panfrost/panfrost_gem.c | 10 ++++++---- drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c | 15 ++------------- include/drm/drm_gem_shmem_helper.h | 2 +- 4 files changed, 20 insertions(+), 20 deletions(-)