#include "nouveau_dma.h"
#include "nouveau_mem.h"
#include "nouveau_bo.h"
+#include "nouveau_svm.h"
#include <nvif/class.h>
#include <nvif/object.h>
#include <nvif/if000c.h>
#include <nvif/if500b.h>
#include <nvif/if900b.h>
+#include <nvif/if000c.h>
#include <linux/sched/mm.h>
#include <linux/hmm.h>
}
static unsigned long nouveau_dmem_migrate_copy_one(struct nouveau_drm *drm,
- unsigned long src, dma_addr_t *dma_addr)
+ unsigned long src, dma_addr_t *dma_addr, u64 *pfn)
{
struct device *dev = drm->dev->dev;
struct page *dpage, *spage;
+ unsigned long paddr;
spage = migrate_pfn_to_page(src);
if (!spage || !(src & MIGRATE_PFN_MIGRATE))
dpage = nouveau_dmem_page_alloc_locked(drm);
if (!dpage)
- return 0;
+ goto out;
*dma_addr = dma_map_page(dev, spage, 0, PAGE_SIZE, DMA_BIDIRECTIONAL);
if (dma_mapping_error(dev, *dma_addr))
goto out_free_page;
+ paddr = nouveau_dmem_page_addr(dpage);
if (drm->dmem->migrate.copy_func(drm, 1, NOUVEAU_APER_VRAM,
- nouveau_dmem_page_addr(dpage), NOUVEAU_APER_HOST,
- *dma_addr))
+ paddr, NOUVEAU_APER_HOST, *dma_addr))
goto out_dma_unmap;
+ *pfn = NVIF_VMM_PFNMAP_V0_V | NVIF_VMM_PFNMAP_V0_VRAM |
+ ((paddr >> PAGE_SHIFT) << NVIF_VMM_PFNMAP_V0_ADDR_SHIFT);
+ if (src & MIGRATE_PFN_WRITE)
+ *pfn |= NVIF_VMM_PFNMAP_V0_W;
return migrate_pfn(page_to_pfn(dpage)) | MIGRATE_PFN_LOCKED;
out_dma_unmap:
out_free_page:
nouveau_dmem_page_free_locked(drm, dpage);
out:
+ *pfn = NVIF_VMM_PFNMAP_V0_NONE;
return 0;
}
static void nouveau_dmem_migrate_chunk(struct nouveau_drm *drm,
- struct migrate_vma *args, dma_addr_t *dma_addrs)
+ struct nouveau_svmm *svmm, struct migrate_vma *args,
+ dma_addr_t *dma_addrs, u64 *pfns)
{
struct nouveau_fence *fence;
unsigned long addr = args->start, nr_dma = 0, i;
for (i = 0; addr < args->end; i++) {
args->dst[i] = nouveau_dmem_migrate_copy_one(drm, args->src[i],
- dma_addrs + nr_dma);
+ dma_addrs + nr_dma, pfns + i);
if (args->dst[i])
nr_dma++;
addr += PAGE_SIZE;
nouveau_fence_new(drm->dmem->migrate.chan, false, &fence);
migrate_vma_pages(args);
nouveau_dmem_fence_done(&fence);
+ nouveau_pfns_map(svmm, args->vma->vm_mm, args->start, pfns, i);
while (nr_dma--) {
dma_unmap_page(drm->dev->dev, dma_addrs[nr_dma], PAGE_SIZE,
DMA_BIDIRECTIONAL);
}
- /*
- * FIXME optimization: update GPU page table to point to newly migrated
- * memory.
- */
migrate_vma_finalize(args);
}
int
nouveau_dmem_migrate_vma(struct nouveau_drm *drm,
+ struct nouveau_svmm *svmm,
struct vm_area_struct *vma,
unsigned long start,
unsigned long end)
.vma = vma,
.start = start,
};
- unsigned long c, i;
+ unsigned long i;
+ u64 *pfns;
int ret = -ENOMEM;
args.src = kcalloc(max, sizeof(*args.src), GFP_KERNEL);
if (!dma_addrs)
goto out_free_dst;
- for (i = 0; i < npages; i += c) {
- c = min(SG_MAX_SINGLE_ALLOC, npages);
- args.end = start + (c << PAGE_SHIFT);
+ pfns = nouveau_pfns_alloc(max);
+ if (!pfns)
+ goto out_free_dma;
+
+ for (i = 0; i < npages; i += max) {
+ args.end = start + (max << PAGE_SHIFT);
ret = migrate_vma_setup(&args);
if (ret)
- goto out_free_dma;
+ goto out_free_pfns;
if (args.cpages)
- nouveau_dmem_migrate_chunk(drm, &args, dma_addrs);
+ nouveau_dmem_migrate_chunk(drm, svmm, &args, dma_addrs,
+ pfns);
args.start = args.end;
}
ret = 0;
+out_free_pfns:
+ nouveau_pfns_free(pfns);
out_free_dma:
kfree(dma_addrs);
out_free_dst:
#define SVM_DBG(s,f,a...) NV_DEBUG((s)->drm, "svm: "f"\n", ##a)
#define SVM_ERR(s,f,a...) NV_WARN((s)->drm, "svm: "f"\n", ##a)
+struct nouveau_pfnmap_args {
+ struct nvif_ioctl_v0 i;
+ struct nvif_ioctl_mthd_v0 m;
+ struct nvif_vmm_pfnmap_v0 p;
+};
+
struct nouveau_ivmm {
struct nouveau_svmm *svmm;
u64 inst;
addr = max(addr, vma->vm_start);
next = min(vma->vm_end, end);
/* This is a best effort so we ignore errors */
- nouveau_dmem_migrate_vma(cli->drm, vma, addr, next);
+ nouveau_dmem_migrate_vma(cli->drm, cli->svm.svmm, vma, addr,
+ next);
addr = next;
}
return NVIF_NOTIFY_KEEP;
}
+static struct nouveau_pfnmap_args *
+nouveau_pfns_to_args(void *pfns)
+{
+ return container_of(pfns, struct nouveau_pfnmap_args, p.phys);
+}
+
+u64 *
+nouveau_pfns_alloc(unsigned long npages)
+{
+ struct nouveau_pfnmap_args *args;
+
+ args = kzalloc(struct_size(args, p.phys, npages), GFP_KERNEL);
+ if (!args)
+ return NULL;
+
+ args->i.type = NVIF_IOCTL_V0_MTHD;
+ args->m.method = NVIF_VMM_V0_PFNMAP;
+ args->p.page = PAGE_SHIFT;
+
+ return args->p.phys;
+}
+
+void
+nouveau_pfns_free(u64 *pfns)
+{
+ struct nouveau_pfnmap_args *args = nouveau_pfns_to_args(pfns);
+
+ kfree(args);
+}
+
+void
+nouveau_pfns_map(struct nouveau_svmm *svmm, struct mm_struct *mm,
+ unsigned long addr, u64 *pfns, unsigned long npages)
+{
+ struct nouveau_pfnmap_args *args = nouveau_pfns_to_args(pfns);
+ int ret;
+
+ args->p.addr = addr;
+ args->p.size = npages << PAGE_SHIFT;
+
+ mutex_lock(&svmm->mutex);
+
+ svmm->vmm->vmm.object.client->super = true;
+ ret = nvif_object_ioctl(&svmm->vmm->vmm.object, args, sizeof(*args) +
+ npages * sizeof(args->p.phys[0]), NULL);
+ svmm->vmm->vmm.object.client->super = false;
+
+ mutex_unlock(&svmm->mutex);
+}
+
static void
nouveau_svm_fault_buffer_fini(struct nouveau_svm *svm, int id)
{
OSDN Git Service
