c31b7f5901
Simplify by always passing a MemoryRegion property to the device. Doing so we can move the AddressSpace field to the device struct, removing need for heap allocation. Update the Xilinx ZynqMP SoC model to pass the default system memory instead of a NULL value. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20210819163422.2863447-4-philmd@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
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* Xilinx Platform CSU Stream DMA emulation
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*
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* This implementation is based on
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* https://github.com/Xilinx/qemu/blob/master/hw/dma/csu_stream_dma.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef XLNX_CSU_DMA_H
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#define XLNX_CSU_DMA_H
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#define TYPE_XLNX_CSU_DMA "xlnx.csu_dma"
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#define XLNX_CSU_DMA_R_MAX (0x2c / 4)
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typedef struct XlnxCSUDMA {
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SysBusDevice busdev;
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MemoryRegion iomem;
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MemTxAttrs attr;
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MemoryRegion *dma_mr;
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AddressSpace dma_as;
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qemu_irq irq;
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StreamSink *tx_dev; /* Used as generic StreamSink */
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ptimer_state *src_timer;
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uint16_t width;
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bool is_dst;
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bool r_size_last_word;
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StreamCanPushNotifyFn notify;
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void *notify_opaque;
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uint32_t regs[XLNX_CSU_DMA_R_MAX];
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RegisterInfo regs_info[XLNX_CSU_DMA_R_MAX];
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} XlnxCSUDMA;
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#define XLNX_CSU_DMA(obj) \
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OBJECT_CHECK(XlnxCSUDMA, (obj), TYPE_XLNX_CSU_DMA)
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#endif
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