- Aug 23, 2019
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Sam Ravnborg authored
The DRM_UDELAY is a simple wrapper for udealy() and to be consistent call udelay() direct like in may other places. This avoids the need to pull in drm_os_linux.h when we later drop drmP.h uses in nouveau. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: nouveau@lists.freedesktop.org Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
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Colin Ian King authored
There is a spelling mistake in a warning message. Fix it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
Mukesh Ojha <mojha@codeaurora.org> Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c:1092:1: warning: symbol 'acr_r352_ls_gpccs_func' was not declared. Should it be static? Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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- Aug 22, 2019
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https://git.pengutronix.de/git/lst/linuxDave Airlie authored
Most importantly per-process address spaces on GPUs that are capable of providing proper isolation has finished baking. This is the base for our softpin implementation, which allows us to support the texture descriptor buffers used by GC7000 series GPUs without a major UAPI extension/rework. Shortlog of notable changes: - code cleanup from Fabio - fix performance counters on GC880 and GC2000 GPUs from Christian - drmP.h header removal from Sam - per process address space support on MMUv2 GPUs from me - softpin support from me Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Lucas Stach <l.stach@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/1565946875.2641.73.camel@pengutronix.de
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git://linuxtv.org/pinchartl/mediaDave Airlie authored
- R-Car DU fixes - Misc. DRM cleanups Signed-off-by:
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- Aug 21, 2019
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
drm-misc-next for 5.4: UAPI Changes: Cross-subsystem Changes: Core Changes: - dma-buf: add reservation_object_fences helper, relax reservation_object_add_shared_fence, remove reservation_object seq number (and then restored) - dma-fence: Shrinkage of the dma_fence structure, Merge dma_fence_signal and dma_fence_signal_locked, Store the timestamp in struct dma_fence in a union with cb_list Driver Changes: - More dt-bindings YAML conversions - More removal of drmP.h includes - dw-hdmi: Support get_eld and various i2s improvements - gm12u320: Few fixes - meson: Global cleanup - panfrost: Few refactors, Support for GPU heap allocations - sun4i: Support for DDC enable GPIO - New panels: TI nspire, NEC NL8048HL11, LG Philips LB035Q02, Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1 Toppoly TD043MTEA1 Signed-off-by:
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- Aug 19, 2019
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Nishka Dasgupta authored
Static structure fb_funcs, of type drm_framebuffer_funcs, is used only when it is passed to drm_gem_fb_create_with_funcs() as its last argument. drm_gem_fb_create_with_funcs does not modify its lst argument (fb_funcs) and hence fb_funcs is never modified. Therefore make fb_funcs constant to protect it from further modification. Issue found with Coccinelle. Signed-off-by:
Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by:
Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by:
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- Aug 18, 2019
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Nishka Dasgupta authored
The static structure vbox_fb_helper_funcs, of type drm_fb_helper_funcs, is used only when it is passed as the third argument to drm_fb_helper_fbdev_setup(), which does not modify it. Hence make it constant to protect it from unintended modifications. Issue found with Coccinelle. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Chris Wilson authored
The timestamp and the cb_list are mutually exclusive, the cb_list can only be added to prior to being signaled (and once signaled we drain), while the timestamp is only valid upon being signaled. Both the timestamp and the cb_list are only valid while the fence is alive, and as soon as no references are held can be replaced by the rcu_head. By reusing the union for the timestamp, we squeeze the base dma_fence struct to 64 bytes on x86-64. v2: Sort the union chronologically Suggested-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Christian König <christian.koenig@amd.com> Acked-by:
Christian König <christian.koenig@amd.com>.> Link: https://patchwork.freedesktop.org/patch/msgid/20190817153022.5749-1-chris@chris-wilson.co.uk
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Chris Wilson authored
Currently dma_fence_signal() tries to avoid the spinlock and only takes it if absolutely required to walk the callback list. However, to allow for some users to surreptitiously insert lazy signal callbacks that do not depend on enabling the signaling mechanism around every fence, we always need to notify the callbacks on signaling. As such, we will always need to take the spinlock and dma_fence_signal() effectively becomes a clone of dma_fence_signal_locked(). v2: Update the test_and_set_bit() before entering the spinlock. v3: Drop the test_[and_set]_bit() before the spinlock, it's a caller error so expected to be very unlikely. Signed-off-by:
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Chris Wilson authored
Before we notify the fence signal callback, we remove the cb from the list. However, since we are processing the entire list from underneath the spinlock, we do not need to individual delete each element, but can simply reset the link and the entire list. Signed-off-by:
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Chris Wilson authored
Rearrange the couple of 32-bit atomics hidden amongst the field of pointers that unnecessarily caused the compiler to insert some padding, shrinks the size of the base struct dma_fence from 80 to 72 bytes on x86-64. Signed-off-by:
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- Aug 17, 2019
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Colin Ian King authored
Variable val is initialized to a value in a for-loop that is never read and hence it is redundant. Remove it. Addresses-Coverity: ("Unused value") Signed-off-by: -
Laurent Pinchart authored
drm_panel-based drivers for the ACX565AKM, LB035Q02, LS037V7DW01, NL8048HL11, TD028TTEC1 and TD043MTEA1 are available, remove the omapdrm-specific drivers. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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Laurent Pinchart authored
Standard DRM panel drivers for several panels used by omapfb2 are now available. Their module name clashes with the modules from drivers/video/fbdev/omap2/omapfb/displays, part of the deprecated omapfb2 fbdev driver. As omapfb2 can only be compiled when the omapdrm driver is disabled, and the DRM panel drivers are useless in that case, make the omapfb2 panels depend on the standard DRM panels being disabled to fix the name clash. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Fixes: dc2e1e5b ("drm/panel: Add driver for the Toppoly TD043MTEA1 panel") Fixes: 415b8dd0 ("drm/panel: Add driver for the Toppoly TD028TTEC1 panel") Fixes: 1c8fc3f0 ("drm/panel: Add driver for the Sony ACX565AKM panel") Fixes: c9cf4c2a ("drm/panel: Add driver for the Sharp LS037V7DW01 panel") Fixes: df439abe ("drm/panel: Add driver for the NEC NL8048HL11 panel") Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> [added tags] Link: https://patchwork.freedesktop.org/patch/msgid/20190816122228.9475-2-laurent.pinchart@ideasonboard.com
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- Aug 16, 2019
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Fabrizio Castro authored
Using name "bridge" for macro bridge_to_rcar_lvds argument doesn't work when the pointer name used by the caller is not "bridge". Rename the argument to "b" to allow for any pointer name. While at it, fix the connector_to_rcar_lvds macro similarly. Fixes: c6a27fa4 ("drm: rcar-du: Convert LVDS encoder code to bridge driver") Signed-off-by:
Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [Fix connector_to_rcar_lvds] Signed-off-by:
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Laurent Pinchart authored
DRM bridges are only used by atomic drivers, and none of them use the legacy helpers. Drop bridge support from those helpers to prepare for making the bridge operations atomic-aware. Signed-off-by:
Sean Paul <seanpaul@chromium.org> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Laurent Pinchart authored
The dw-hdmi, kirin and imx drivers include the drm/drm_encoder_slave.h header but don't use the encoder slave API. Remove it or replace it with drm/drm_encoder.h as needed. Signed-off-by:
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Chris Wilson authored
This reverts 67c97fb7 ("dma-buf: add reservation_object_fences helper") dd7a7d1f ("drm/i915: use new reservation_object_fences helper") 0e1d8083 ("dma-buf: further relax reservation_object_add_shared_fence") 5d344f58 ("dma-buf: nuke reservation_object seq number") The scenario that defeats simply grabbing a set of shared/exclusive fences and using them blissfully under RCU is that any of those fences may be reallocated by a SLAB_TYPESAFE_BY_RCU fence slab cache. In this scenario, while keeping the rcu_read_lock we need to establish that no fence was changed in the dma_resv after a read (or full) memory barrier. Signed-off-by:
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git://people.freedesktop.org/~thomash/linuxDave Airlie authored
A couple of independent patches extracted from the 5.3 pull request, fixed for merge conflicts and a single unused variable warning. And the drmP.h removal from Sam. Signed-off-by:
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- Aug 15, 2019
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Lucas Stach authored
With softpin we allow the userspace to take control over the GPU virtual address space. The new capability is relected by a bump of the minor DRM version. There are a few restrictions for userspace to take into account: 1. The kernel reserves a bit of the address space to implement zero page faulting and mapping of the kernel internal ring buffer. Userspace can query the kernel for the first usable GPU VM address via ETNAVIV_PARAM_SOFTPIN_START_ADDR. 2. We only allow softpin on GPUs, which implement proper process separation via PPAS. If softpin is not available the softpin start address will be set to ~0. 3. Softpin is all or nothing. A submit using softpin must not use any address fixups via relocs. Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Reviewed-by:
Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by:
Guido Günther <agx@sigxcpu.org>
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Lucas Stach authored
Allow the mapping code to request a specific virtual address for the gem mapping. If the virtual address is zero we fall back to the old mode of allocating a virtual address for the mapping. Signed-off-by:
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Lucas Stach authored
With per-process address spaces in place, a rogue process submitting bogus command streams can only hurt itself. There is no need to validate the command stream before execution anymore. Signed-off-by:
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Lucas Stach authored
This builds on top of the MMU contexts introduced earlier. Instead of having one context per GPU core, each GPU client receives its own context. On MMUv1 this still means a single shared pagetable set is used by all clients, but on MMUv2 there is now a distinct set of pagetables for each client. As the command fetch is also translated via the MMU on MMUv2 the kernel command ringbuffer is mapped into each of the client pagetables. As the MMU context switch is a bit of a heavy operation, due to the needed cache and TLB flushing, this patch implements a lazy way of switching the MMU context. The kernel does not have its own MMU context, but reuses the last client context for all of its operations. This has some visible impact, as the GPU can now only be started once a client has submitted some work and we got the client MMU context assigned. Also the MMU context has a different lifetime than the general client context, as the GPU might still execute the kernel command buffer in the context of a client even after the client has completed all GPU work and has been terminated. Only when the GPU is runtime suspended or switches to another clients MMU context is the old context freed up. Signed-off-by:
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Lucas Stach authored
In preparation to having a context per process, etnaviv_gem_mapping_get should not use the current GPU context, but needs to be told which context to use. Signed-off-by:
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Lucas Stach authored
Move buffer setup and starting of the FE loop in the kernel ringbuffer into a separate function. This is a preparation to start the FE later in the submit process. Signed-off-by:
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Lucas Stach authored
This reworks the MMU handling to make it possible to have multiple MMU contexts. A context is basically one instance of GPU page tables. Currently we have one set of page tables per GPU, which isn't all that clever, as it has the following two consequences: 1. All GPU clients (aka processes) are sharing the same pagetables, which means there is no isolation between clients, but only between GPU assigned memory spaces and the rest of the system. Better than nothing, but also not great. 2. Clients operating on the same set of buffers with different etnaviv GPU cores, e.g. a workload using both the 2D and 3D GPU, need to map the used buffers into the pagetable sets of each used GPU. This patch reworks all the MMU handling to introduce the abstraction of the MMU context. A context can be shared across different GPU cores, as long as they have compatible MMU implementations, which is the case for all systems with Vivante GPUs seen in the wild. As MMUv1 is not able to change pagetables on the fly, without a "stop the world" operation, which stops GPU, changes pagetables via CPU interaction, restarts GPU, the implementation introduces a shared context on MMUv1, which is returned whenever there is a request for a new context. This patch assigns a MMU context to each GPU, so on MMUv2 systems there is still one set of pagetables per GPU, but due to the shared context MMUv1 systems see a change in behavior as now a single pagetable set is used across all GPU cores. Signed-off-by:
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Lucas Stach authored
If a MMU is shared between multiple GPUs, all of them need to flush their TLBs, so a single marker that gets reset on the first flush won't do. Replace the flush marker with a sequence number, so that it's possible to check if the TLB is in sync with the current page table state for each GPU. Signed-off-by:
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Lucas Stach authored
There is no need for each GPU to have it's own cmdbuf suballocation region. Only allocate a single one for the the etnaviv virtual device and share it across all GPUs. As the suballoc space is now potentially shared by more hardware jobs running in parallel, double its size to 512KB to avoid contention. Signed-off-by:
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Lucas Stach authored
This allows to decouple the cmdbuf suballocator create and mapping the region into the GPU address space. Allowing multiple AS to share a single cmdbuf suballoc. Signed-off-by:
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Lucas Stach authored
Remember if the GPU has been sucessfully initialized. Only in that case do we need to clean up various structures in the unbind path. If the GPU hasn't been sucessfully initialized all the cleanups should happen in the failure paths of the init function. Signed-off-by:
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Lucas Stach authored
This function does only need the mmu part part of the gpu struct. Signed-off-by:
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Lucas Stach authored
Due to the tracking provided by the scheduler we know exactly which submit is failing. Only dump this single submit and the required auxiliary information. This cuts down the size of the devcoredumps by only including relevant information. Signed-off-by:
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Thomas Hellstrom authored
TTM provides a means to assign eviction priorities to buffer object. This means that all buffer objects with a lower priority will be evicted first on memory pressure. Use this to make sure surfaces and in particular non-dirty surfaces are evicted first. Evicting in particular shaders, cotables and contexts imply a significant performance hit on vmwgfx, so make sure these resources are evicted last. Some buffer objects are sub-allocated in user-space which means we can have many resources attached to a single buffer object or resource. In that case the buffer object is given the highest priority of the attached resources. Signed-off-by:
Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by:
Deepak Rawat <drawat@vmware.com>
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Sam Ravnborg authored
Drop use of the deprecated drmP.h file from the remaining files. In several cases the drmP.h include could be removed without furter fixes. Other files required a few header files to be added. In all files divided includes files in blocks and sort them. v2: - fix warning in i386 build wiht HIGHMEM disabled Signed-off-by:
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Sam Ravnborg authored
To facilitate removal of drmP.h in the .c files remove the use from header files first. Fix fallout in the other files. Sorted include files in blocks and sorted files within each block in alphabetical order. This revealed a dependency from an uapi header to a header located below drivers/gpu/drm/vmwgfx/. Added FIXME to remind someone to fix this. Signed-off-by:
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Thomas Hellstrom authored
At one point, the GPU command verifier and user-space handle manager couldn't properly protect GPU clients from accessing each other's data. Instead there was an elaborate mechanism to make sure only the active master's primary clients could render. The other clients were either put to sleep or even killed (if the master had exited). VRAM was evicted on master switch. With the advent of render-node functionality, we relaxed the VRAM eviction, but the other mechanisms stayed in place. Now that the GPU command verifier and ttm object manager properly isolates primary clients from different master realms we can remove the master switch related code and drop those legacy features. Signed-off-by:
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Laurent Pinchart authored
This panel is used on the OMAP3 Pandora. The code is based on the omapdrm-specific panel-tpo-td043mtea1 driver. v2: - fix checkpatch warnings o (lcd == NULL) => (!lcd) (sam) o alignment to open '(' (sam) Signed-off-by: -
Laurent Pinchart authored
This panel is used on the OpenMoko Neo FreeRunner and Neo 1973. The code is based on the omapdrm-specific panel-tpo-td028ttec1 driver. v2: - fix checkpatch warnings: o (lcd == NULL) => (!lcd) (sam) o (1 << X) => BIT(X) (sam) Signed-off-by:
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Laurent Pinchart authored
This panel is used on the Nokia N900. The code is based on the omapdrm-specific panel-sony-acx565akm driver. The hardware-related logic has been changed as little as possible to avoid regressions as hardware availability is lacking to test the changes. Follow-up patches should address the items listed in the TODO list. v2: - fix checkpatch warning (lcd == NULL) => (!lcd) (sam) Signed-off-by:
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