- 29 Sep, 2020 15 commits
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Gurchetan Singh authored
SCANOUT_BLOB forwards the DRM framebuffer metadata to the host. The modifier is intentionally left out -- it may be possible to query the host for that. We also assume one blob resource per DRM framebuffer. That too is an intentional simplification. Signed-off-by:
Gurchetan Singh <gurchetansingh@chromium.org> Acked-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-14-gurchetansingh@chromium.orgSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Gurchetan Singh authored
This implements the blob hypercall interface. Signed-off-by:
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Gerd Hoffmann authored
A virtio-gpu vram object is based on range-based allocation. No guest shmemfs backing, so we call drm_gem_private_object_init. This is for host memory without any guest backing (atleast initially). Signed-off-by:
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Gurchetan Singh authored
Useful for upcoming blob resources. Signed-off-by:
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Gurchetan Singh authored
VRAM object will need it. Signed-off-by:
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Gerd Hoffmann authored
The availability of the host visible region means host 3D allocations can be directly mapped in the guest. Signed-off-by:
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Gerd Hoffmann authored
Let's proble for VIRTIO_GPU_F_RESOURCE_BLOB. Signed-off-by:
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Gurchetan Singh authored
This feature was recently added to virtio-gpu, lets make it userspace queryable. It's an error to use BLOB_FLAG_USE_CROSS_DEVICE when this feature is not present. Signed-off-by:
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Gurchetan Singh authored
This exposes the host visible feature to userspace. Without it, it is an error to specify BLOB_MEM_HOST3D with BLOG_FLAG_USE_MAPPABLE. Signed-off-by:
Lingfeng Yang <lfy@google.com> Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-6-gurchetansingh@chromium.orgSigned-off-by:
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Gurchetan Singh authored
This makes blob resources available to guest userspace. They are needed for GL4.5, Vulkan and zero-copy virtio-gpu. For Mesa, blob resources have been tested with Piglit's ARB_buffer_storage tests and apitraces. Apitraces of GL4.5 games show we're between 70% to 80% of host performance on Iris, based on a apitrace of a 2013 GL4.5 game: 11.204 FPS (guest) 15.947 FPS (host) This is still better than the status quo, when said game was unplayable with Virgl due to an inefficient GL4.3 fallback. But there's still room for improvement if we want to match HW-assisted virtualization. For Vulkan, blob resources have been tested with dEQP.vk.memory* and running Vulkan applications in production with the "Cuttlefish" virtual Android device. This has been done with Lingfeng Yang's "gfxstream" Vulkan implementation, which virtualizes Vulkan across many Google products. Signed-off-by:
Chia-I Wu <olvaffe@gmail.com> Acked-by:
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Gerd Hoffmann authored
This patch adds a new virtgpu feature that allows directly mapping host allocated resources. This is based on virtio shared memory regions, which allows querying for memory regions using PCI transport. Each shared memory region has an associated "shmid", the meaning of which is device specific. For virtio-gpu, we can define the shared memory region with id VIRTIO_GPU_SHM_ID_HOST_VISIBLE to be the "host visible memory region". The presence of the host visible memory region means the following hypercalls are supported: 1) VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB This hypercall tells the host to inject the host resource's mapping in an offset into virtio-gpu's PCI address space. This is typically done via KVM_SET_USER_MEMORY_REGION on Linux hosts. On success, VIRTIO_GPU_RESP_OK_MAP_INFO is returned, which specifies the host buffer's caching type and possibly in the future performance hints about the buffer.. 2) VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB This hypercall tells the host to remove the host resource's mapping from the guest VM. Signed-off-by:
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Gerd Hoffmann authored
A blob resource is a container for: - VIRTIO_GPU_BLOB_MEM_GUEST: a guest memory allocation (referred to as a "guest-only blob resource") - VIRTIO_GPU_BLOB_MEM_HOST3D: a host3d memory allocation (referred to as a "host-only blob resource") - VIRTIO_GPU_BLOB_MEM_HOST3D_GUEST: a guest + host3d memory allocation (referred to as a "default blob resource"). The memory properties of the blob resource must be described by `blob_mem`. For default and guest only blob resources set, `nents` guest system pages are assigned to the resource. For default blob resources, these guest pages are used for transfer operations. Attach/detach is also possible to allow swap-in/swap-out, but isn't required since it may not be applicable to future blob mem types (shared guest/guest vram). Host allocations depend on whether the 3D is supported. If 3D is not supported, the only valid field for `blob_mem` is VIRTIO_GPU_BLOB_MEM_GUEST. If 3D is supported, the virtio-gpu resource is created from the context local object identified by the `blob_id`. The actual host allocation done by the CMD_SUBMIT_3D. Userspace must specify if the blob resource is intended to be used for userspace mapping, sharing between virtio-gpu contexts and/or sharing between virtio devices. This is done via `blob_flags`. For 3D hosts, both VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D and VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D may be used to update the host resource. There is no restriction on the image/buffer view the guest/host userspace has on the blob resource. VIRTIO_GPU_CMD_SET_SCANOUT_BLOB / VIRTIO_GPU_CMD_RESOURCE_FLUSH may be used with blob resources as well. The modifier is intentionally left out of SCANOUT_BLOB, and auxilary blobs are also left out as a simplification. The use case for blob resources is zero-copy, needed for coherent memory in virglrenderer. Host only blob resources are not mappable without the feature described in the next patch, but are shareable. Future work: - Emulated coherent `blob_mem` type for QEMU/vhost-user - A `blob_mem` type for guest-only resources imported in cache-coherent FOSS GPU/display drivers. - Display integration involving the blob model using seamless Wayland windows. Signed-off-by: -
Gurchetan Singh authored
RESOURCE_MAP_BLOB / RESOURCE_UNMAP_BLOB can use this. Signed-off-by:
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Gurchetan Singh authored
Useful for upcoming blob resources. Signed-off-by:
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Thomas Zimmermann authored
Include <drm/drm_gem_cma_helper.h> to get drm_gem_cma_vm_ops. Fallout from the recent conversion to GEM object functions. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Sam Ravnborg <sam@ravnborg.org> Reported-by:
kernel test robot <lkp@intel.com> Fixes: 0d590af3 ("drm/rockchip: Convert to drm_gem_object_funcs") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Christian König <christian.koenig@amd.com> Cc: Sandy Huang <hjc@rock-chips.com> Cc: "Heiko Stübner" <heiko@sntech.de> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Link: https://patchwork.freedesktop.org/patch/msgid/20200928081643.8575-1-tzimmermann@suse.de
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- 28 Sep, 2020 6 commits
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Tian Tao authored
drm_framebuffer.h already declares struct drm_device, so there's no need to declare it in hibmc_drm_drv.h v2: fixed spelling errors in commit message. v3: rewrite the commit message. Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Acked-by:
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Christian König authored
Another one bites the dust. Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/392325/
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Christian König authored
We already implemented the fault handler ourself, just open code what is necessary here. Signed-off-by:
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Christian König authored
Implement the fault handler ourself using the provided TTM functions. Signed-off-by:
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Christian König authored
We already implemented the fault handler ourself, just open code what is necessary here. Signed-off-by:
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Christian König authored
Just check earlier if a BO can be page faulted in the first place. Signed-off-by:
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- 27 Sep, 2020 1 commit
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Paul Cercueil authored
On JZ4725B and newer, the F0 plane supports paletted 8bpp with a 256-entry palette. Add support for it. v3: Only accept a full 256-entry palette. Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Reviewed-by:
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- 26 Sep, 2020 6 commits
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Paul Cercueil authored
Starting from the JZ4725B SoC, the primary and overlay planes support 24-bit pixel modes (8 bits per color component, without dummy byte). Add support for these in the ingenic-drm driver. Signed-off-by:
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Paul Cercueil authored
Starting from the JZ4760 SoC, the primary and overlay planes support 30-bit pixel modes (10 bits per color component). Add support for these in the ingenic-drm driver. Signed-off-by:
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Paul Cercueil authored
Until now the ingenic-drm driver supported the same pixel formats on the F0 and F1 planes, and across all SoCs. However, the F0 plane does support paletted 8bpp, while the F1 plane doesn't. Furthermore, the three SoCs currently supported all have different pixel formats available; 24bpp was added in JZ4725B, 30bpp was added in JZ4770. Prepare the inclusion of paletted 8bpp, 24bpp and 30bpp support by having separate pixel format lists for F0 and F1 planes. Signed-off-by:
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Paul Cercueil authored
Instead of calling dmam_alloc_coherent() once for each 4-bit DMA hardware descriptor, we can have them both in a physical memory page, as long as they are aligned to 16 bytes. This reduces memory consumption, and will make it easier to add more DMA descriptors in the future. Note that the old code would not create the F0 descriptor on SoCs that don't support multiple planes. We don't care, because: - we don't use more memory by allocating two descriptors instead of a single one; - the only SoC that does not support multiple planes (JZ4740) still has two independent DMA channels, for an unknown reason. Signed-off-by:
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Paul Cercueil authored
Add support for static memory reserved from Device Tree. Since we're using GEM buffers backed by CMA, it is interesting to have an option to specify the CMA area where the GEM buffers will be allocated. v2: Don't abort probe if reserved memory cannot be obtained. The driver will still work fine provided the kernel configuration is sane. Signed-off-by: -
Paul Cercueil authored
Old Ingenic SoCs can overclock very well, up to +50% of their nominal clock rate, whithout requiring overvolting or anything like that, just by changing the rate of the main PLL. Unfortunately, all clocks on the system are derived from that PLL, and when the PLL rate is updated, so is our pixel clock. To counter that issue, we make sure that the panel is in VBLANK before the rate change happens, and we will then re-set the pixel clock rate afterwards, once the PLL has been changed, to be as close as possible to the pixel rate requested by the encoder. v2: Add comment about mutex usage Signed-off-by:
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- 25 Sep, 2020 12 commits
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Arnd Bergmann authored
This is one of the last users of compat_alloc_user_space() and copy_in_user(). The actual handler is implemented in the same file and could be shared, but as I couldn't test this properly I leave the native case alone and just make a straight copy of it for the compat case, with a minimum set of modifications. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Arnd Bergmann authored
No driver implements FBIOSCURSOR, so this function has no purpose and can be removed. Apparently it was added in linux-2.1.44 to handle compatibility for drivers/sbus/char/sunfb.c but lost its purpose when that driver got rewritten in linux-2.5.63. Signed-off-by:
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Arnd Bergmann authored
This function is one of the remaining users of compat_alloc_user_space() and copy_in_user(). Clean it up by copying to a local data structure copy instead, which also leads to more readable code. Signed-off-by:
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Thomas Zimmermann authored
Most drivers that use VRAM helpers have only a few MiB of framebuffer memory available. To reduce fragmentation, new BOs are now put into system memory by default. Only pin operations are allowed to move BOs into VRAM. v2: * rebased onto latest drm-tip Signed-off-by:
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Thomas Zimmermann authored
Don't override the GEM object functions unconditionally. If the driver sets the GEM functions, VRAM helpers will not set them. The idea has been taken from SHMEM helpers. v2: * updated the commit message (Sam) * document the new feature for drm_gem_vram_create() Signed-off-by:
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Thomas Zimmermann authored
The drm_gem_vram_create() function is the only caller of the internal helper drm_gem_vram_init(). Streamline the code by putting all code into the create function. v2: * rebased onto latest drm-tip * fixed typo in commit message (Sam) Signed-off-by:
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Thomas Zimmermann authored
Several GEM and PRIME callbacks have been deprecated in favor of per-instance GEM object functions. Remove the callbacks as they are now unused. The only exception is .gem_prime_mmap, which is still in use by several drivers. What is also gone is gem_vm_ops in struct drm_driver. All drivers now use struct drm_gem_object_funcs.vm_ops instead. While at it, the patch also improves error handling around calls to .free and .get_sg_table callbacks. v3: * restore default call to drm_gem_prime_export() in drm_gem_prime_handle_to_fd() * return -ENOSYS if get_sg_table is not set * drop all checks for obj->funcs * clean up TODO list and documentation v2: * update related TODO item (Sam) Signed-off-by:
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Thomas Zimmermann authored
The xlnx driver uses CMA helpers with default callback functions. Initialize the driver structure with the rsp CMA helper macro. The driver is being converted to use GEM object functions as part of this change. Two callbacks, .dumb_destroy and .gem_prime_import, were initialized to their default implementations, so they are just kept empty now. v2: * initialize with DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE (Laurent) Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Hyun Kwon <hyun.kwon@xilinx.com> Acked-by:
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Thomas Zimmermann authored
GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in xen. The only exception is gem_prime_mmap, which is non-trivial to convert. v2: * convert xen_drm_drv_free_object_unlocked() to static callback (Oleksandr) Signed-off-by:
Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Acked-by:
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Thomas Zimmermann authored
GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in vkms. Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Acked-by:
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Thomas Zimmermann authored
GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces virtgpu's per-driver PRIME export function with a per-object function. Signed-off-by:
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Thomas Zimmermann authored
GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in vgem. The only exception is gem_prime_mmap, which is non-trivial to convert. Signed-off-by:
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