Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
|
|
* IOMMU test device helpers for libqos qtests
|
|
*
|
|
* Copyright (c) 2026 Phytium Technology
|
|
*
|
|
* Author:
|
|
* Tao Tang <[email protected]>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "../libqtest.h"
|
|
#include "pci.h"
|
|
#include "qos-iommu-testdev.h"
|
|
|
|
uint32_t qos_iommu_testdev_trigger_dma(QPCIDevice *dev, QPCIBar bar,
|
|
uint64_t iova, uint64_t gpa,
|
|
uint32_t len, uint32_t attrs)
|
|
{
|
|
uint32_t result = ITD_DMA_RESULT_BUSY;
|
|
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_GVA_LO, (uint32_t)iova);
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_GVA_HI, (uint32_t)(iova >> 32));
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_GPA_LO, (uint32_t)gpa);
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_GPA_HI, (uint32_t)(gpa >> 32));
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_LEN, len);
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_ATTRS, attrs);
|
|
|
|
qpci_io_writel(dev, bar, ITD_REG_DMA_DBELL, ITD_DMA_DBELL_ARM);
|
|
qpci_io_readl(dev, bar, ITD_REG_DMA_TRIGGERING);
|
|
|
|
for (int i = 0; i < 1000; i++) {
|
|
result = qpci_io_readl(dev, bar, ITD_REG_DMA_RESULT);
|
|
if (result != ITD_DMA_RESULT_BUSY) {
|
|
break;
|
|
}
|
|
g_usleep(1000);
|
|
}
|
|
|
|
if (result == ITD_DMA_RESULT_BUSY) {
|
|
return ITD_DMA_ERR_TX_FAIL;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void qos_iommu_testdev_single_translation(const QOSIOMMUTestdevDmaCfg *dma,
|
|
void *opaque,
|
|
QOSIOMMUTestdevSetupFn setup_fn,
|
|
QOSIOMMUTestdevAttrsFn attrs_fn,
|
|
QOSIOMMUTestdevValidateFn validate_fn,
|
|
QOSIOMMUTestdevReportFn report_fn,
|
|
uint32_t *dma_result_out)
|
|
{
|
|
uint32_t config_result;
|
|
uint32_t dma_result;
|
|
uint32_t attrs_val;
|
|
|
|
g_assert(dma);
|
|
g_assert(setup_fn);
|
|
g_assert(attrs_fn);
|
|
|
|
config_result = setup_fn(opaque);
|
|
g_assert_cmpuint(config_result, ==, 0);
|
|
|
|
attrs_val = attrs_fn(opaque);
|
|
dma_result = qos_iommu_testdev_trigger_dma(dma->dev, dma->bar,
|
|
dma->iova, dma->gpa,
|
|
dma->len, attrs_val);
|
|
if (dma_result_out) {
|
|
*dma_result_out = dma_result;
|
|
}
|
|
|
|
if (report_fn) {
|
|
report_fn(opaque, dma_result);
|
|
}
|
|
|
|
if (validate_fn) {
|
|
g_assert_true(validate_fn(opaque));
|
|
}
|
|
}
|