diff options
| author | Sai Pavan Boddu <sai.pavan.boddu@amd.com> | 2024-02-26 14:07:23 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-02-27 13:01:41 +0000 |
| commit | 3b3e4c2803a58ddc14f37d05c7d0e2a3f749bc67 (patch) | |
| tree | a0b114017a3846a908fc83a47204326b9a9af780 /hw | |
| parent | efabbc07e96b502acb4927743964dde132d75ded (diff) | |
| download | focaccia-qemu-3b3e4c2803a58ddc14f37d05c7d0e2a3f749bc67.tar.gz focaccia-qemu-3b3e4c2803a58ddc14f37d05c7d0e2a3f749bc67.zip | |
xlnx-versal-ospi: disable reentrancy detection for iomem_dac
The OSPI DMA reads flash data through the OSPI linear address space (the
iomem_dac region), because of this the reentrancy guard introduced in
commit a2e1753b ("memory: prevent dma-reentracy issues") is disabled for
the memory region.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@amd.com>
Message-id: 20240219105637.65052-1-sai.pavan.boddu@amd.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ssi/xlnx-versal-ospi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/ssi/xlnx-versal-ospi.c b/hw/ssi/xlnx-versal-ospi.c index c7b95b1f37..c479138ec1 100644 --- a/hw/ssi/xlnx-versal-ospi.c +++ b/hw/ssi/xlnx-versal-ospi.c @@ -1772,6 +1772,12 @@ static void xlnx_versal_ospi_init(Object *obj) memory_region_init_io(&s->iomem_dac, obj, &ospi_dac_ops, s, TYPE_XILINX_VERSAL_OSPI "-dac", 0x20000000); sysbus_init_mmio(sbd, &s->iomem_dac); + /* + * The OSPI DMA reads flash data through the OSPI linear address space (the + * iomem_dac region), because of this the reentrancy guard needs to be + * disabled. + */ + s->iomem_dac.disable_reentrancy_guard = true; sysbus_init_irq(sbd, &s->irq); |