Hu Julien,
On 4/29/19 4:44 PM, Julien Grall wrote:
> On RT, iommu_dma_map_msi_msg() may be called from non-preemptible
> context. This will lead to a splat with CONFIG_DEBUG_ATOMIC_SLEEP as
> the function is using spin_lock (they can sleep on RT).
>
> iommu_dma_map_msi_msg() is used to map the
On 29/04/2019 15:44, Julien Grall wrote:
> On RT, iommu_dma_map_msi_msg() may be called from non-preemptible
> context. This will lead to a splat with CONFIG_DEBUG_ATOMIC_SLEEP as
> the function is using spin_lock (they can sleep on RT).
>
> iommu_dma_map_msi_msg() is used to map the MSI page in
On 29/04/2019 15:44, Julien Grall wrote:
On RT, iommu_dma_map_msi_msg() may be called from non-preemptible
context. This will lead to a splat with CONFIG_DEBUG_ATOMIC_SLEEP as
the function is using spin_lock (they can sleep on RT).
iommu_dma_map_msi_msg() is used to map the MSI page in the
On RT, iommu_dma_map_msi_msg() may be called from non-preemptible
context. This will lead to a splat with CONFIG_DEBUG_ATOMIC_SLEEP as
the function is using spin_lock (they can sleep on RT).
iommu_dma_map_msi_msg() is used to map the MSI page in the IOMMU PT
and update the MSI message with the
