diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch b/target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch index 9083c70ca5..c2424a41f0 100644 --- a/target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch +++ b/target/linux/layerscape/patches-4.14/808-vfio-support-layerscape.patch @@ -1,21 +1,24 @@ -From 92f0ef51270b2961f63b2e985831f5e9a6251a2f Mon Sep 17 00:00:00 2001 +From 03ce521cd071706f755e3d2304ab1b8c47fd4910 Mon Sep 17 00:00:00 2001 From: Biwen Li <biwen.li@nxp.com> -Date: Tue, 30 Oct 2018 18:29:03 +0800 -Subject: [PATCH 25/40] vfio: support layerscape +Date: Wed, 17 Apr 2019 18:59:09 +0800 +Subject: [PATCH] vfio: support layerscape + This is an integrated patch of vfio for layerscape Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com> Signed-off-by: Biwen Li <biwen.li@nxp.com> +Signed-off-by: Roy Pledge <roy.pledge@nxp.com> +Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> --- drivers/vfio/Kconfig | 1 + drivers/vfio/Makefile | 1 + drivers/vfio/fsl-mc/Kconfig | 9 + drivers/vfio/fsl-mc/Makefile | 2 + - drivers/vfio/fsl-mc/vfio_fsl_mc.c | 751 ++++++++++++++++++++++ + drivers/vfio/fsl-mc/vfio_fsl_mc.c | 759 ++++++++++++++++++++++ drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | 199 ++++++ - drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 55 ++ + drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 57 ++ include/uapi/linux/vfio.h | 1 + - 8 files changed, 1019 insertions(+) + 8 files changed, 1029 insertions(+) create mode 100644 drivers/vfio/fsl-mc/Kconfig create mode 100644 drivers/vfio/fsl-mc/Makefile create mode 100644 drivers/vfio/fsl-mc/vfio_fsl_mc.c @@ -56,7 +59,7 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> +obj-$(CONFIG_VFIO_FSL_MC) += vfio_fsl_mc.o vfio_fsl_mc_intr.o --- /dev/null +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c -@@ -0,0 +1,751 @@ +@@ -0,0 +1,759 @@ +/* + * Freescale Management Complex (MC) device passthrough using VFIO + * @@ -118,6 +121,10 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> + if (mc_dev->regions[i].flags & IORESOURCE_CACHEABLE) + vdev->regions[i].type |= + VFIO_FSL_MC_REGION_TYPE_CACHEABLE; ++ if (mc_dev->regions[i].flags & IORESOURCE_MEM) ++ vdev->regions[i].type |= ++ VFIO_FSL_MC_REGION_TYPE_SHAREABLE; ++ + vdev->regions[i].flags = VFIO_REGION_INFO_FLAG_MMAP; + vdev->regions[i].flags |= VFIO_REGION_INFO_FLAG_READ; + if (!(mc_dev->regions[i].flags & IORESOURCE_READONLY)) @@ -390,9 +397,7 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> + u64 header; + struct mc_cmd_header *resp_hdr; + -+ __iormb(); -+ header = readq(ioaddr); -+ __iormb(); ++ header = cpu_to_le64(readq_relaxed(ioaddr)); + + resp_hdr = (struct mc_cmd_header *)&header; + status = (enum mc_cmd_status)resp_hdr->status; @@ -412,9 +417,12 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> +{ + int i; + -+ /* Write at command header in the end */ -+ for (i = 7; i >= 0; i--) -+ writeq(cmd_data[i], ioaddr + i * sizeof(uint64_t)); ++ /* Write at command parameter into portal */ ++ for (i = 7; i >= 1; i--) ++ writeq_relaxed(cmd_data[i], ioaddr + i * sizeof(uint64_t)); ++ ++ /* Write command header in the end */ ++ writeq(cmd_data[0], ioaddr); + + /* Wait for response before returning to user-space + * This can be optimized in future to even prepare response @@ -499,9 +507,12 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> + * cache inhibited area of the portal to avoid coherency issues + * if a user migrates to another core. + */ -+ if (region.type & VFIO_FSL_MC_REGION_TYPE_CACHEABLE) -+ vma->vm_page_prot = pgprot_cached_ns(vma->vm_page_prot); -+ else ++ if (region.type & VFIO_FSL_MC_REGION_TYPE_CACHEABLE) { ++ if (region.type & VFIO_FSL_MC_REGION_TYPE_SHAREABLE) ++ vma->vm_page_prot = pgprot_cached(vma->vm_page_prot); ++ else ++ vma->vm_page_prot = pgprot_cached_ns(vma->vm_page_prot); ++ } else + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + + vma->vm_pgoff = (region.addr >> PAGE_SHIFT) + pgoff; @@ -1012,7 +1023,7 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> +} --- /dev/null +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h -@@ -0,0 +1,55 @@ +@@ -0,0 +1,57 @@ +/* + * Freescale Management Complex VFIO private declarations + * @@ -1047,6 +1058,8 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> + u32 flags; +#define VFIO_FSL_MC_REGION_TYPE_MMIO 1 +#define VFIO_FSL_MC_REGION_TYPE_CACHEABLE 2 ++#define VFIO_FSL_MC_REGION_TYPE_SHAREABLE 4 ++ + u32 type; + u64 addr; + resource_size_t size; |