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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id f187sm25163765wme.9.2020.04.06.03.12.14 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Apr 2020 03:12:15 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 08/11] dma/xlnx-zdma: Populate DBG0.CMN_BUF_FREE Date: Mon, 6 Apr 2020 11:12:02 +0100 Message-Id: <20200406101205.23027-9-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200406101205.23027-1-peter.maydell@linaro.org> References: <20200406101205.23027-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::336 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Edgar E. Iglesias" Populate DBG0.CMN_BUF_FREE so that SW can see some free space. Signed-off-by: Edgar E. Iglesias Reviewed-by: Alistair Francis Reviewed-by: Francisco Iglesias Message-id: 20200402134721.27863-3-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell --- hw/dma/xlnx-zdma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/dma/xlnx-zdma.c b/hw/dma/xlnx-zdma.c index a6c5b2304a8..6a4699757af 100644 --- a/hw/dma/xlnx-zdma.c +++ b/hw/dma/xlnx-zdma.c @@ -680,6 +680,12 @@ static RegisterAccessInfo zdma_regs_info[] = { },{ .name = "ZDMA_CH_DBG0", .addr = A_ZDMA_CH_DBG0, .rsvd = 0xfffffe00, .ro = 0x1ff, + + /* + * There's SW out there that will check the debug regs for free space. + * Claim that we always have 0x100 free. + */ + .reset = 0x100 },{ .name = "ZDMA_CH_DBG1", .addr = A_ZDMA_CH_DBG1, .rsvd = 0xfffffe00, .ro = 0x1ff, -- 2.20.1