Displaying 12 results from an estimated 12 matches for "ptei".
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pte
2020 Jul 01
0
[PATCH v3 3/5] nouveau: fix mapping 2MB sysmem pages
...u/nvkm/subdev/mmu/vmmgp100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c
@@ -258,12 +258,94 @@ gp100_vmm_pd0_unmap(struct nvkm_vmm *vmm,
VMM_FO128(pt, vmm, pdei * 0x10, 0ULL, 0ULL, pdes);
}
+static void
+gp100_vmm_pd0_pfn_unmap(struct nvkm_vmm *vmm,
+ struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
+{
+ struct device *dev = vmm->mmu->subdev.device->dev;
+ dma_addr_t addr;
+
+ nvkm_kmap(pt->memory);
+ while (ptes--) {
+ u32 datalo = nvkm_ro32(pt->memory, pt->base + ptei * 16 + 0);
+ u32 datahi = nvkm_ro32(pt->memory, pt->base + ptei * 16 + 4);
+ u64 data...
2020 Jun 19
0
[PATCH 10/16] nouveau/hmm: support mapping large sysmem pages
...vkm/subdev/mmu/base.c
index de91e9a26172..ecea365d72ad 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
@@ -94,6 +94,8 @@ nvkm_mmu_ptp_get(struct nvkm_mmu *mmu, u32 size, bool zero)
}
pt->ptp = ptp;
pt->sub = true;
+ pt->ptei_shift = 3;
+ pt->page_shift = PAGE_SHIFT;
/* Sub-allocate from parent object, removing PTP from cache
* if there's no more free slots left.
@@ -203,6 +205,8 @@ nvkm_mmu_ptc_get(struct nvkm_mmu *mmu, u32 size, u32 align, bool zero)
return NULL;
pt->ptc = ptc;
pt->sub = fal...
2020 Apr 24
1
[PATCH] drm/nouveau/mmu: Remove unneeded semicolon
...mm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
index 5e55ecbd8005..d3f8f916d0db 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
@@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
PTEI += _ptes; \
PTEN -= _ptes; \
- }; \
+ }...
2019 Dec 18
1
[PATCH v2] drm/nouveau/mmu: Remove unneeded semicolon
...bdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
index 5e55ecb..321bfca 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
@@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
PTEI += _ptes; \
PTEN -= _ptes; \
- }; \
+ }...
2020 Jul 01
8
[PATCH v3 0/5] mm/hmm/nouveau: add PMD system memory mapping
The goal for this series is to introduce the hmm_pfn_to_map_order()
function. This allows a device driver to know that a given 4K PFN is
actually mapped by the CPU using a larger sized CPU page table entry and
therefore the device driver can safely map system memory using larger
device MMU PTEs.
The series is based on 5.8.0-rc3 and is intended for Jason Gunthorpe's
hmm tree. These were
2019 Dec 16
1
[PATCH] drm/nouveau/mmu: Remove unneeded semicolon
...bdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
index 5e55ecb..321bfca 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
@@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
PTEI += _ptes; \
PTEN -= _ptes; \
- }; \
+ }...
2020 Jun 30
6
[PATCH v2 0/5] mm/hmm/nouveau: add PMD system memory mapping
The goal for this series is to introduce the hmm_range_fault() output
array flags HMM_PFN_PMD and HMM_PFN_PUD. This allows a device driver to
know that a given 4K PFN is actually mapped by the CPU using either a
PMD sized or PUD sized CPU page table entry and therefore the device
driver can safely map system memory using larger device MMU PTEs.
The series is based on 5.8.0-rc3 and is intended for
2020 May 08
11
[PATCH 0/6] nouveau/hmm: add support for mapping large pages
hmm_range_fault() returns an array of page frame numbers and flags for
how the pages are mapped in the requested process' page tables. The PFN
can be used to get the struct page with hmm_pfn_to_page() and the page size
order can be determined with compound_order(page) but if the page is larger
than order 0 (PAGE_SIZE), there is no indication that the page is mapped
using a larger page size. To
2019 Dec 18
0
[PATCH v2] drm/nouveau/mmu: Remove unneeded semicolon
...gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
> index 5e55ecb..321bfca 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
> @@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
> FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
> PTEI += _ptes; \
> PTEN -= _ptes; \
> - }; \
> + }...
2020 May 04
0
[PATCH] drm/nouveau/mmu: remove unneeded semicolon
...mm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
index 5e55ecbd8005..d3f8f916d0db 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
@@ -304,7 +304,7 @@ int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
PTEI += _ptes; \
PTEN -= _ptes; \
- }; \
+ }...
2018 Mar 10
17
[RFC PATCH 00/13] SVM (share virtual memory) with HMM in nouveau
From: Jérôme Glisse <jglisse at redhat.com>
(mm is cced just to allow exposure of device driver work without ccing
a long list of peoples. I do not think there is anything usefull to
discuss from mm point of view but i might be wrong, so just for the
curious :)).
git://people.freedesktop.org/~glisse/linux branch: nouveau-hmm-v00
2020 Jun 19
22
[PATCH 00/16] mm/hmm/nouveau: THP mapping and migration
These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go
into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM
self tests. Patch 7-8 prepare nouveau for the meat of this series which
adds support and testing for compound page mapping of system memory
(patches 9-11) and compound page migration to device private memory
(patches 12-16). Since these changes are split