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Mon, 17 Feb 2020 07:45:14 -0800 (PST) Received: from abel.fritz.box ([2a02:908:1252:fb60:180d:d2d6:6ff9:a6cb]) by smtp.gmail.com with ESMTPSA id r6sm1372658wrq.92.2020.02.17.07.45.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Feb 2020 07:45:14 -0800 (PST) From: "=?UTF-8?q?Christian=20K=C3=B6nig?=" X-Google-Original-From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-media@vger.kernel.org, intel-gfx@lists.freedesktop.org, daniel@ffwll.ch Subject: [PATCH 2/5] drm/ttm: remove the backing store if no placement is given Date: Mon, 17 Feb 2020 16:45:06 +0100 Message-Id: <20200217154509.2265-3-christian.koenig@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200217154509.2265-1-christian.koenig@amd.com> References: <20200217154509.2265-1-christian.koenig@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Pipeline removal of the BOs backing store when no placement is given during validation. Signed-off-by: Christian König --- drivers/gpu/drm/ttm/ttm_bo.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 229205e499db..a56cb2a2b4ad 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1225,6 +1225,18 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, uint32_t new_flags; dma_resv_assert_held(bo->base.resv); + + /* + * Remove the backing store if no placement is given. + */ + if (!placement->num_placement && !placement->num_busy_placement) { + ret = ttm_bo_pipeline_gutting(bo); + if (ret) + return ret; + + return ttm_tt_create(bo, false); + } + /* * Check whether we need to move buffer. */ -- 2.17.1