| 0766116 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv50,g84: type-based vram allocation and bar mapping Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 957e18a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv04-nv4x: type-based vram allocation and bar mapping Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| eaf1a69 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: add base for type-based memory allocation Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 51645eb | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: build up information on available memory types Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 3a314f7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: remove explicit unmaps If the VMA is being deleted, we don't need to explicity unmap first anymore. The MMU code will automatically merge the operations into a single page tree walk. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 2cabefc | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/gr/gf100-: replace hardcoded instance/vmm setup in grctx generation Could be useful for if/when a future GPU removes support for the GF100 PT layout. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 019e4d7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/gr/gf100-: use new interfaces for vmm operations Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 01f349f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fifo/gf100-: use new interfaces for vmm operations Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:31 UTC |
| 8c967c5 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/secboot/gm200: use new interfaces for vmm operations Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| 9202d73 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50-: use new interfaces for vmm operations Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| 6f4dc18 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/ram: use new interfaces for vmm operations Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| f66c57d | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fifo: initialise vmm with new interfaces Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| 85f7c3a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/secboot/gm200: initialise vmm with new interfaces Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| 7eac5f4 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/bar/gf100: initialise vmm with new interfaces Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| fc584e1 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/bar/nv50: initialise vmm with new interfaces Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| f9463a4 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: implement new vmm frontend These are the new priviledged interfaces to the VMM backends, and expose some functionality that wasn't previously available. It's now possible to allocate a chunk of address-space (even all of it), without causing page tables to be allocated up-front, and then map into it at arbitrary locations. This is the basic primitive used to support features such as sparse mapping, or to allow userspace control over its own address-space, or HMM (where the GPU driver isn't in control of the address-space layout). Rather than being tied to a subtle combination of memory object and VMA properties, arguments that control map flags (ro, kind, etc) are passed explicitly at map time. The compatibility hacks to implement the old frontend on top of the new driver backends have been replaced with something similar to implement the old frontend's interfaces on top of the new frontend. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| 26880e7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: remove support for old backends Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| f9400af | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gp100,gp10b: implement new vmm backend Adds support for: - 64KiB/2MiB big page sizes (128KiB not supported by HW with new PT layout). - System-memory PTs. - LPTE "invalid" state. - (Tegra) Use of video memory aperture. - Sparse PDEs/PTEs. - Additional blocklinear kinds. - 49-bit address-space. GP100 supports an entirely new 5-level page table layout that provides an expanded 49-bit address-space. It also supports the layout present on previous generations, which we've been making do with until now. This commit implements support for the new layout, and enables it by default. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:30 UTC |
| e12cf6a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gm200,gm20b: implement new vmm backend Adds support for: - 64KiB big page size. - System-memory PTs. - LPTE "invalid" state. - (Tegra) Use of video memory aperture. - Sparse PDEs/PTEs. - Additional blocklinear kinds. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:29 UTC |
| b597764 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gk104,gk20a: implement new vmm backend Adds support for: - 64KiB big page size. - System-memory PTs. - LPTE "invalid" state. - (Tegra) Use of video memory aperture. Adds support for marking LPTEs invalid, resulting in the corresponding SPTEs being ignored, which is supposed to speed up TLB invalidates. On The Tegra side, this will switch to using the video memory aperture for all mappings. The HW will still target non-coherent system memory, but this aperture needs to be selected in order to support compression. Tegra's instmem backend somewhat cheated to get this effect previously. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:29 UTC |
| b77791d | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gf100: implement new vmm backend Adds support for: - 64KiB big page size. - System-memory PTs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:29 UTC |
| fd542a3 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv50,g84: implement new vmm backend Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:29 UTC |
| 6ce5135 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv44: implement new vmm backend Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:28 UTC |
| 473f9ac | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv41: implement new vmm backend Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| dd12d15 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv04: implement new vmm backend Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| eb81399 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: implement new vmm backend This is the common code to support a rework of the VMM backends. It adds support for more than 2 levels of page table nesting, which is required to be able to support GP100's MMU layout. Sparse mappings (that don't cause MMU faults when accessed) are now supported, where the backend provides it. Dual-PT handling had to become more sophisticated to support sparse, but this also allows us to support an optimisation the MMU provides on GK104 and newer. Certain operations can now be combined into a single page tree walk to avoid some overhead, but also enables optimsations like skipping PTE unmap writes when the PT will be destroyed anyway. The old backend has been hacked up to forward requests onto the new backend, if present, so that it's possible to bisect between issues in the backend changes vs the upcoming frontend changes. Until the new frontend has been merged, new backends will leak BAR2 page tables on module unload. This is expected, and it's not worth the effort of hacking around this as it doesn't effect runtime. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| bda9e37 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/gm200: enable NV_PFB_MMU_CTRL_USE_FULL_COMP_TAG_LINE where appropriate To avoid wasting compression tags when using 64KiB pages, we need to enable this so we can select between upper/lower comptagline in PTEs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| f8a1203 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/ltc/gm200: limit NV_MMU_PTE_COMPTAGLINE bits to 16 where required If NV_PFB_MMU_CTRL_USE_FULL_COMP_TAG_LINE is TRUE, then the last bit of NV_MMU_PTE_COMPTAGLINE is re-purposed to select the upper/lower half of a compression tag when using 64KiB big pages. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| ac47c15 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fifo/nv04-nv40: fix missing nvkm_kmap() calls around ramfc access Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| d30af7c | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: handle instance block setup We previously required each VMM user to allocate their own page directory and fill in the instance block themselves. It makes more sense to handle this in a common location. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:27 UTC |
| af3b8d5 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: remove old vm creation hooks Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:26 UTC |
| 8e39abf | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gp100,gp10b: implement vmm on top of new base Adds support for: - Selection of old/new-style page table layout (GP100MmuLayout=0/1). - System-memory PDs. New layout disabled by default for the moment, as we don't have a backend that can handle it yet. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:26 UTC |
| 5f300fe | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gm200,gm20b: implement vmm on top of new base Adds support for: - Per-VMM selection of big page size. - System-memory PDs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:26 UTC |
| 7de078a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gk104,gk20a: implement vmm on top of new base Adds support for: - Selection of a 64KiB big page size (NvFbBigPage=16). - System-memory PDs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:26 UTC |
| 540a1dd | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gf100: implement vmm on top of new base Adds support for: - Selection of a 64KiB big page size (NvFbBigPage=16). - System-memory PDs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| 9f6219f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv50,g84: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| 03b0ba7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv44: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| 7778343 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv41: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| 5b17f36 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv04: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| 806a733 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: implement base for new vm management This is the first chunk of the new VMM code that provides the structures needed to describe a GPU virtual address-space layout, as well as common interfaces to handle VMM creation, and connecting instances to a VMM. The constructor now allocates the PD itself, rather than having the user handle that manually. This won't/can't be used until after all backends have been ported to these interfaces, so a little bit of memory will be wasted on Fermi and newer for a couple of commits in the series. Compatibility has been hacked into the old code to allow each GPU backend to be ported individually. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:25 UTC |
| f128039 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: implement page table sub-allocation GP100 "big" (which is a funny name, when it supports "even bigger") page tables are small enough that we want to be able to suballocate them from a larger block of memory. This builds on the previous page table cache interfaces so that the VMM code doesn't need to know the difference. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| 9a45dda | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: implement page table cache Builds up and maintains a small cache of each page table size in order to reduce the frequency of expensive allocations, particularly in the pathological case where an address range ping-pongs between allocated and free. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| 5e075fd | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu: automatically handle "un-bootstrapping" of vmm Removes the need to expose internals outside of MMU, and GP100 is both different, and a lot harder to deal with. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| 6359c98 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gp10b: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| b86a458 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gp100: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| cedc4d5 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gm20b: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| e1e33c7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gm200: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| d1f6c8d | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gk20a: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:24 UTC |
| db01858 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/gk104: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| 0f43715 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/g84: fork from nv50 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| b4e114f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/ram: remove old allocators Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| 1de3377 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: allocate vram with nvkm_ram_get() This will cause a subtle behaviour change on GPUs that are in mixed-memory configurations in that VRAM in the degraded section of VRAM will no longer be used for TTM buffer objects. That section of VRAM is not meant to be used for displayable/compressed surfaces, and we have no reliable way with the current interfaces to be able to make that decision properly. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| 7b86566 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: directly handle comptag allocation Another transition step to allow finer-grained patches transitioning to new MMU backends. Old backends will continue operate as before (accessing nvkm_mem::tag), and new backends will get a reference to the tags allocated here. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| bd275f1 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: wrap nvkm_mem objects in nvkm_memory interfaces This is a transition step, to enable finer-grained commits while transitioning to new MMU interfaces. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| bd44705 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/ltc/gf100-: allocate tagram with nvkm_ram_get() Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| 7f4f82a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: allocate memory with nvkm_ram_get() Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| 2bfa0b0 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/ram/gt215: allocate training buffer with nvkm_ram_get() Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| e9a8b21 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/ram: add interface to allocate vram as an nvkm_memory object Upcoming MMU changes use nvkm_memory as its basic representation of memory, so we need to be able to allocate VRAM like this. The code is basically identical to the current chipset-specific allocators, minus support for compression tags (which will be handled elsewhere anyway). Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:23 UTC |
| c09597f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: add some useful accessor macros Adds support for 64-bit writes, and optimised filling of buffers with fixed 32/64-bit values. These will all be used by the upcoming MMU changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 997a890 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: add reference counting We need to be able to prevent memory from being freed while it's still mapped in a GPU's address-space. Will be used by upcoming MMU changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 2c9c491 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: add mechanism to retrieve allocation granularity Needed by VMM code to determine whether an allocation is compatible with a given page size (ie. you can't map 4KiB system memory pages into 64KiB GPU pages). Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 19a82e4 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: change map interface to support upcoming mmu changes Map flags (access, kind, etc) are currently defined in either the VMA, or the memory object, which turns out to not be ideal for things like suballocated buffers, etc. These will become per-map flags instead, so we need to support passing these arguments in nvkm_memory_map(). Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 7f53d6d | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: comptag allocation nvkm_memory is going to be used by the upcoming mmu rework for the basic representation of a memory allocation, as such, this commit adds support for comptag allocation to nvkm_memory. This is very simple for now, in that it requires comptags for the entire memory allocation even if only certain ranges are compressed. Support for tracking ranges will be added at a later date. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 6cd7670 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/ltc: init comptag mm in fb subdev A single location for the MM allows us to share allocation logic. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| b1e839f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb/gf100: clear comptags at allocation time rather than mmu map We probably don't want to destroy compression data when doing multiple mappings of a memory object. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| af793b8 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb: move comptag init out of ram submodule Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 7ef44be | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb: move comptags mm into nvkm_fb We're moving towards having a central place to handle comptag allocation, and as some GPUs don't have a ram submodule (ie. Tegra), we need to move the mm somewhere else. It probably never belonged in ram anyways. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| b7e1f3f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/mm: introduce functions to access info about a given allocation These will be used in upcoming patches. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 4d058fa | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/mm: have users explicitly define heap identifiers Different sections of VRAM may have different properties (ie. can't be used for compression/display, can't be mapped, etc). We currently already support this, but it's a bit magic. This change makes it more obvious where we're allocating from. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:22 UTC |
| 24e8375 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: separate constant-va tracking from nvkm vma structure Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| 9ce523c | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: separate buffer object backing memory from nvkm structures Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| cb7e88e | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: hang drm client of a master TTM memory allocations will be hanging off the DRM's client, but the locking needed to do so gets really tricky with all the other use of the DRM's object tree. To solve this, we make the normal DRM client a child of a new master, where the memory allocations will be done from instead. This also solves a potential race with client creation. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| 6be4421 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: consolidate identical functions in nouveau_ttm.c Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| 792067e | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: remove unnecessary use of ttm_mem_type_manager::priv Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| a48296a | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: swap loop order in move_notify() hook The conditional is the same for every mapping. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| 425b34f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: simplify const-va map condition We don't really care about where the memory is, just that it's compatible with a VMA allocated for a given page size. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:21 UTC |
| 7760a2e | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: split various bo flags out into their own members It's far more convenient to deal with like this. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| bc3b0c7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: remove unused sysmem fence code Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| e75c091 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau: store nouveau_drm in nouveau_cli, as opposed to drm_device Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| b6838c1 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/gr/gf100-gk208: copy big page size setting from fb Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| 223eaf4 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/gr/gf100-gk208: make use of init_gpc_mmu() hook to share setup Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| 2854ab8 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/fb: finalise big page size selection in constructor MMU will need to know this during its constructor, so we can't delay deciding this until init-time. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| 0b11b30 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/mmu/nv04-nv4x: move global vmm to nvkm_mmu In a future commit, this will be constructed by common code. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| ffd937b | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: use fast-path for resume restore Before: "imem: init completed in 299277us" After: "imem: init completed in 11574us" Suspend from Fedora 26 gnome desktop on GP102. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| e9be3c7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: use fast-path for suspend backup Before: "imem: suspend completed in 5540487us" After: "imem: suspend completed in 1871526us" Suspend from Fedora 26 gnome desktop on GP102. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| b00b843 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: separate pre-BAR2-bootstrap objects from the rest These will require slow-path access during suspend/resume. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| 54c70e3 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: switch to kvmalloc/kvfree for suspend/resume backup Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:20 UTC |
| d52ddc9 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: separate suspend/resume backup handling into their own functions Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| 71370e6 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: remove now-unused wrapper for backend objects Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| 03edf1b | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: support eviction of BAR2 mappings A good deal of the structures we map into here aren't accessed very often at all, and Fedora 26 has exposed an issue where after creating a heap of channels, BAR2 space would run out, and we'd need to make use of the slow path while accessing important structures like page tables. This implements an LRU on BAR2 space, which allows eviction of mappings that aren't currently needed, to make space for other objects. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| 69b136f | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: prevent fast-path for mapped objects when BAR isn't ready Another piece of solving the "GP100 BAR2 VMM bootstrap" puzzle. Without doing this, we'd attempt to write PDEs for the lower page table levels through BAR2 before BAR2 access has been fully initialised. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| dfcbd55 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: map bar2 write-combined Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| be55287 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: embed nvkm_instobj directly into nv04_instobj This is not as simple as it was for earlier GPUs, due to the need to swap accessor functions depending on whether BAR2 is usable or not. We were previously protected by nvkm_instobj's accessor functions keeping an object mapped permanently, with some unclear magic that managed to hit the slow-path where needed even if an object was marked as mapped. That's been replaced here by reference counting maps (some objects, like page tables can be accessed concurrently), and swapping the functions as necessary. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| af515ec | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: move slow-path locking into rd/wr functions This is to simplify upcoming changes. The slow-path is something that currently occurs during bootstrap of the BAR2 VMM, while backing up an object during suspend/resume, or when BAR2 address space runs out. The latter is a real problem that can happen at runtime, and occurs in Fedora 26 already (due to some change that causes a lot of channels to be created at login), so ideally we'd prefer not to make it any slower. We'd also like suspend/resume speed to not suffer. Upcoming commits will solve those problems in a better way, making the extra overhead of moving the locking here a non-issue. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| f584bde | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv50: split object map out from api functions acquire()/boot() will need different logic in addition to performing the actual mapping. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| b807270 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv40: map bar2 write-combined Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:19 UTC |
| 62465ac | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv40: embed nvkm_instobj directly into nv04_instobj Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:18 UTC |
| 87717e7 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem/nv04: directly embed nvkm_instobj into nv04_instobj Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:18 UTC |
| 49814f6 | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/imem: allow nvkm_instobj to be directly embedded in backend object This will eliminate a step through the call chain, and give backends more flexibility. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:18 UTC |
| 07bbc1c | Ben Skeggs | 31 October 2017, 17:56:19 UTC | drm/nouveau/core/memory: split info pointers from accessor pointers The accessor functions can change as a result of acquire()/release() calls, and are protected by any refcounting done there. Other functions must remain constant, as they can be called any time. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> | 02 November 2017, 03:32:18 UTC |
