| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Some subdevices (i.e., fb/nv50.c and fb/gf100.c) map a scratch page using
dma_map_page() way before the TTM layer has had a chance to set the DMA
mask. This may prevent the driver from loading at all on platforms whose
system memory is not covered by the default DMA mask of 32-bit (i.e., when
all RAM is above 4 GB).
So set a preliminary DMA mask right after constructing the PCI device, and
base it on the .dma_bits member of the MMU subdevice, which is what the TTM
layer will base the DMA mask on as well.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Doing direct 64 bit divisions in kernel code leads to references to
undefined symbols on 32 bit architectures. Replace such divisions with
calls to div64_s64 to make the module usable on 32 bit archs.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This reverts commit 01bbcb69f80e1058395b737ae399c6f4ef48691b.
The commit caused fence timeouts within nvc0_screen_destroy and most likely
other places as well.
The most obvious effect is, that userspace processes take minutes to
actually quit.
Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This flag's only remaining function is to ignore the uncached flag for
BOs on coherent architectures.
However the reason for allocating an object uncache on a non-coherent
architecture (namely because the cost of doing explicit flushes/
invalidations is higher than the benefit of caching the data because
accesses are few and far between) should also apply on architectures for
which coherency is maintained implicitly. Thus allocate coherent objects
as uncached on all architectures.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This patch adds support for advanced features supported by the
Noise-Aware PLL of Maxwell. Glitchless switch allows the PL field to be
updated without disabling the PLL first if the SYNC_MODE bit of the CFG
register is set.
More significantly, DFS allows the PLL to monitor the actual input
voltage and to dynamically lower the output frequency accordingly. This
allows the clock to be more tolerant of lower voltages.
These improvements are only supported for Tegra speedos >= 1.
Also add the voltage table that is suitable for GM20B's NAPLL. This
change needs to be done atomically for the right voltages to be used by
the clock driver.
v2. Fix build on non-Tegra platforms
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The GPU speedo ID is required to select the right clk/volt parameters on
GM20B.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This reverts commit 1733a2ad36741b1812cf8b3f3037c28d0af53f50.
There is apparently something amiss with the way the TTM code handles
DMA buffers, which the above commit was attempting to work around for
arm64 systems with non-coherent PCI. Unfortunately, this completely
breaks systems *with* coherent PCI (which appear to be the majority).
Booting a plain arm64 defconfig + CONFIG_DRM + CONFIG_DRM_NOUVEAU on
a machine with a PCI GPU having coherent dma_map_ops (in this case a
7600GT card plugged into an ARM Juno board) results in a fatal crash:
[ 2.803438] nouveau 0000:06:00.0: DRM: allocated 1024x768 fb: 0x9000, bo ffffffc976141c00
[ 2.897662] Unable to handle kernel NULL pointer dereference at virtual address 000001ac
[ 2.897666] pgd = ffffff8008e00000
[ 2.897675] [000001ac] *pgd=00000009ffffe003, *pud=00000009ffffe003, *pmd=0000000000000000
[ 2.897680] Internal error: Oops: 96000045 [#1] PREEMPT SMP
[ 2.897685] Modules linked in:
[ 2.897692] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc5+ #543
[ 2.897694] Hardware name: ARM Juno development board (r1) (DT)
[ 2.897699] task: ffffffc9768a0000 ti: ffffffc9768a8000 task.ti: ffffffc9768a8000
[ 2.897711] PC is at __memcpy+0x7c/0x180
[ 2.897719] LR is at OUT_RINGp+0x34/0x70
[ 2.897724] pc : [<ffffff80083465fc>] lr : [<ffffff800854248c>] pstate: 80000045
[ 2.897726] sp : ffffffc9768ab360
[ 2.897732] x29: ffffffc9768ab360 x28: 0000000000000001
[ 2.897738] x27: ffffffc97624c000 x26: 0000000000000000
[ 2.897744] x25: 0000000000000080 x24: 0000000000006c00
[ 2.897749] x23: 0000000000000005 x22: ffffffc97624c010
[ 2.897755] x21: 0000000000000004 x20: 0000000000000004
[ 2.897761] x19: ffffffc9763da000 x18: ffffffc976b2491c
[ 2.897766] x17: 0000000000000007 x16: 0000000000000006
[ 2.897771] x15: 0000000000000001 x14: 0000000000000001
[ 2.897777] x13: 0000000000e31b70 x12: ffffffc9768a0080
[ 2.897783] x11: 0000000000000000 x10: fffffffffffffb00
[ 2.897788] x9 : 0000000000000000 x8 : 0000000000000000
[ 2.897793] x7 : 0000000000000000 x6 : 00000000000001ac
[ 2.897799] x5 : 00000000ffffffff x4 : 0000000000000000
[ 2.897804] x3 : 0000000000000010 x2 : 0000000000000010
[ 2.897810] x1 : ffffffc97624c010 x0 : 00000000000001ac
...
[ 2.898494] Call trace:
[ 2.898499] Exception stack(0xffffffc9768ab1a0 to 0xffffffc9768ab2c0)
[ 2.898506] b1a0: ffffffc9763da000 0000000000000004 ffffffc9768ab360 ffffff80083465fc
[ 2.898513] b1c0: ffffffc976801e00 ffffffc9762b8000 ffffffc9768ab1f0 ffffff80080ec158
[ 2.898520] b1e0: ffffffc9768ab230 ffffff8008496d04 ffffffc975ce6d80 ffffffc9768ab36e
[ 2.898527] b200: ffffffc9768ab36f ffffffc9768ab29d ffffffc9768ab29e ffffffc9768a0000
[ 2.898533] b220: ffffffc9768ab250 ffffff80080e70c0 ffffffc9768ab270 ffffff8008496e44
[ 2.898540] b240: 00000000000001ac ffffffc97624c010 0000000000000010 0000000000000010
[ 2.898546] b260: 0000000000000000 00000000ffffffff 00000000000001ac 0000000000000000
[ 2.898552] b280: 0000000000000000 0000000000000000 fffffffffffffb00 0000000000000000
[ 2.898558] b2a0: ffffffc9768a0080 0000000000e31b70 0000000000000001 0000000000000001
[ 2.898566] [<ffffff80083465fc>] __memcpy+0x7c/0x180
[ 2.898574] [<ffffff800853e164>] nv04_fbcon_imageblit+0x1d4/0x2e8
[ 2.898582] [<ffffff800853d6d0>] nouveau_fbcon_imageblit+0xd8/0xe0
[ 2.898591] [<ffffff80083c4db4>] soft_cursor+0x154/0x1d8
[ 2.898598] [<ffffff80083c47b4>] bit_cursor+0x4fc/0x538
[ 2.898605] [<ffffff80083c0cfc>] fbcon_cursor+0x134/0x1a8
[ 2.898613] [<ffffff800841c280>] hide_cursor+0x38/0xa0
[ 2.898620] [<ffffff800841d420>] redraw_screen+0x120/0x228
[ 2.898628] [<ffffff80083bf268>] fbcon_prepare_logo+0x370/0x3f8
[ 2.898635] [<ffffff80083bf640>] fbcon_init+0x350/0x560
[ 2.898641] [<ffffff800841c634>] visual_init+0xac/0x108
[ 2.898648] [<ffffff800841df14>] do_bind_con_driver+0x1c4/0x3a8
[ 2.898655] [<ffffff800841e4f4>] do_take_over_console+0x174/0x1e8
[ 2.898662] [<ffffff80083bf8c4>] do_fbcon_takeover+0x74/0x100
[ 2.898669] [<ffffff80083c3e44>] fbcon_event_notify+0x8cc/0x920
[ 2.898680] [<ffffff80080d7e38>] notifier_call_chain+0x50/0x90
[ 2.898685] [<ffffff80080d8214>] __blocking_notifier_call_chain+0x4c/0x90
[ 2.898691] [<ffffff80080d826c>] blocking_notifier_call_chain+0x14/0x20
[ 2.898696] [<ffffff80083c5e1c>] fb_notifier_call_chain+0x1c/0x28
[ 2.898703] [<ffffff80083c81ac>] register_framebuffer+0x1cc/0x2e0
[ 2.898712] [<ffffff800845da80>] drm_fb_helper_initial_config+0x288/0x3e8
[ 2.898719] [<ffffff800853da20>] nouveau_fbcon_init+0xe0/0x118
[ 2.898727] [<ffffff800852d2f8>] nouveau_drm_load+0x268/0x890
[ 2.898734] [<ffffff8008466e24>] drm_dev_register+0xbc/0xc8
[ 2.898740] [<ffffff8008468a88>] drm_get_pci_dev+0xa0/0x180
[ 2.898747] [<ffffff800852cb28>] nouveau_drm_probe+0x1a0/0x1e0
[ 2.898755] [<ffffff80083a32e0>] pci_device_probe+0x98/0x110
[ 2.898763] [<ffffff800858e434>] driver_probe_device+0x204/0x2b0
[ 2.898770] [<ffffff800858e58c>] __driver_attach+0xac/0xb0
[ 2.898777] [<ffffff800858c3e0>] bus_for_each_dev+0x60/0xa0
[ 2.898783] [<ffffff800858dbc0>] driver_attach+0x20/0x28
[ 2.898789] [<ffffff800858d7b0>] bus_add_driver+0x1d0/0x238
[ 2.898796] [<ffffff800858ed50>] driver_register+0x60/0xf8
[ 2.898802] [<ffffff80083a20dc>] __pci_register_driver+0x3c/0x48
[ 2.898809] [<ffffff8008468eb4>] drm_pci_init+0xf4/0x120
[ 2.898818] [<ffffff8008c56fc0>] nouveau_drm_init+0x21c/0x230
[ 2.898825] [<ffffff80080829d4>] do_one_initcall+0x8c/0x190
[ 2.898832] [<ffffff8008c31af4>] kernel_init_freeable+0x14c/0x1f0
[ 2.898839] [<ffffff80088a0c20>] kernel_init+0x10/0x100
[ 2.898845] [<ffffff8008085e10>] ret_from_fork+0x10/0x40
[ 2.898853] Code: a88120c7 a8c12027 a88120c7 a8c12027 (a88120c7)
[ 2.898871] ---[ end trace d5713dcad023ee04 ]---
[ 2.898888] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
In a toss-up between the GPU seeing stale data artefacts on some systems
vs. catastrophic kernel crashes on other systems, the latter would seem
to take precedence, so revert this change until the real underlying
problem can be fixed.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
[acourbot@nvidia.com: port to Nouveau tree, remove bits in lib/]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Without this buffer inconsistencies may appear between the CPU
and GPU when using a PCI GPU on an ARM64 board.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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DMA mask is typically set in nouveau_ttm_init(), but this function is
called late during initialization and GK20A's instmem will have called
DMA functions before this happens.
Having a wrongly set DMA mask can result in the use of unneeded bounce
buffers. Set it early to avoid this.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Add secure-boot for the dGPU set of GM20X chips, using the PMU as the
high-secure falcon.
This work is based on Deepak Goyal's initial port of Secure Boot to
Nouveau.
v2. use proper memory target function
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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On GM200 and later GPUs, firmware for some essential falcons (notably
GR ones) must be authenticated by a NVIDIA-produced signature and
loaded by a high-secure falcon in order to be able to access privileged
registers, in a process known as Secure Boot.
Secure Boot requires building a binary blob containing the firmwares
and signatures of the falcons to be loaded. This blob is then given to
a high-secure falcon running a signed loader firmware that copies the
blob into a write-protected region, checks that the signatures are
valid, and finally loads the verified firmware into the managed falcons
and switches them to privileged mode.
This patch adds infrastructure code to support this process on chips
that require it.
v2:
- The IRQ mask of the PMU falcon was left - replace it with the proper
irq_mask variable.
- The falcon reset procedure expecting a falcon in an initialized state,
which was accidentally provided by the PMU subdev. Make sure that
secboot can manage the falcon on its own.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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v2: rename and group functions
v4: change copyright information
move printing of pcie speeds into oneinit,
rename all pcie functions to nvkm_pcie_*
don't try to raise the pcie version when no higher one is supported
v5: revert Copyright changes and rename nvkm_pcie_raise_version to nvkm_pcie_set_version
v6: remove some useless pci_is_pcie checks and rework messages
Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Commit 69c4938249fb ("drm/nouveau/instmem/gk20a: use direct CPU access")
tried to be smart while using the DMA-API by managing the CPU mappings of
buffers allocated with the DMA-API by itself. In doing so, it relied
on dma_to_phys() which is an architecture-private function not
available everywhere. This broke the build on several architectures.
Since there is no reliable and portable way to obtain the physical
address of a DMA-API buffer, stop trying to be smart and just use the
CPU mapping that the DMA-API can provide. This means that buffers will
be CPU-mapped for all their life as opposed to when we need them, but
anyway using the DMA-API here is a fallback for when no IOMMU is
available so we should not expect optimal behavior.
This makes the IOMMU and DMA-API implementations of instmem diverge
enough that we should maybe put them into separate files...
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The Great Nouveau Refactoring Take II brought us a lot of goodness,
including acquire/release methods that are called before and after an
instobj is modified. These functions can be used as synchronization
points to manage CPU/GPU coherency if we modify an instobj using the
CPU.
This patch replaces the legacy and slow PRAMIN access for gk20a instmem
with CPU mappings and writes. A LRU list is used to unmap unused
mappings after a certain threshold (currently 1MB) of mapped instobjs is
reached. This allows mappings to be reused most of the time.
Accessing instobjs using the CPU requires to maintain the GPU L2 cache,
which we do in the acquire/release functions. This triggers a lot of L2
flushes/invalidates, but most of them are performed on an empty cache
(and thus return immediately), and overall context setup performance
greatly benefits from this (from 250ms to 160ms on Jetson TK1 for a
simple libdrm program).
Making L2 management more explicit should allow us to grab some more
performance in the future.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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On nv50+, we restrict the valid domains to just the one where the buffer
was originally created. However after the buffer is evicted to system
memory, we might move it back to a different domain that was not
originally valid. When sharing the buffer and retrieving its GEM_INFO
data, we still want the domain that will be valid for this buffer in a
pushbuf, not the one where it currently happens to be.
This resolves fdo#92504 and several others. These are due to suspend
evicting all buffers, making it more likely that they temporarily end up
in the wrong place.
Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92504
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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SiS 761 chipset does not support AGP cards but has AGP capability (for
the onboard video). At least PC Chips A31G board using this chipset has
an AGP-like AGPro slot that's wired to the PCI bus. Enabling AGP will
fail (GPU lockup and software fbcon, X11 hangs).
Add support for matching just the host bridge in nvkm_device_agp_quirks
and add entry for SiS 761 with mode 0 (AGP disabled).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The copyright header in nvkm/engine/device/platform.c has been replaced
with the NVIDIA one from drm/nouveau_platform.c, as most of the actual
code is now theirs.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This commit reinstates the pre-DEVINIT AGP fiddling that was broken in
an earlier commit.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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PCI IDs taken from the NVIDIA binary driver, with permission.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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An upcoming commit requires being able to modify the PRAMIN BAR page
tables while already holding the MMU subdev mutex.
To solve this issue, each VM has been given its own mutex. As a nice
side-effect, this also allows separate VMs to be updated concurrently.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Replaces the piece-by-piece (in response to NV_DEVICE ctor args) device
contruction with a once-off all-or-nothing approach, eliminating some
tricky refcounting issues. The partial device init capability was only
required by some tools, and has been moved to probe time instead.
Temporarily removes a workaround for some boards where we need to fiddle
with AGP registers before executing the DEVINIT scripts. A later commit
in this series reinstates it.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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These require an explicit pointers to nvkm_object/nvkm_subdev/nvkm_device,
depending on which macros are used. This is unlike the previous macros
which take a void *, and work for anything derived from nvkm_object (by
way of some awful heuristics).
The output will be a bit confused until everything has been transitioned,
as the logging format used is a more standard style that previously.
In addition, usage of pr_cont(), which doesn't work correctly with the
dev_*() printk functions (and was potentially racy to begin with), will
be replaced.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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These require an explicit struct nvkm_device pointer, unlike the previous
macros which take a void *, and work for (almost) anything derived from
nvkm_object by using some heuristics.
These macros are more general than the previous ones, and can be used to
handle PTIMER-based busy-waits (will be used in later devinit fixes) as
well as more complicated wait conditions.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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NVIDIA will officially start providing GR firmwares through
linux-firmware for GPUs that require it. Change the GR firmware lookup
function to use these files.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Tegra SoCs have an IOMMU that can be used to present non-contiguous
physical memory as contiguous to the GPU and maximize the use of large
pages in the GPU MMU, leading to performance gains. This patch adds
support for probing such a IOMMU if present and make its properties
available in the nouveau_platform_gpu structure so subsystems can take
advantage of it.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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instmem for GK20A is allocated using dma_alloc_coherent(), which
provides us with a coherent CPU mapping that we never use because
instmem objects are accessed through PRAMIN. Switch to
dma_alloc_attrs() which gives us the option to dismiss that CPU mapping
and free up some CPU virtual space.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver. This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).
Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.
A comparison of objdump disassemblies proves no code changes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver. This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).
Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.
A comparison of objdump disassemblies proves no code changes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver. This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).
Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.
A comparison of objdump disassemblies proves no code changes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver. This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).
Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.
A comparison of objdump disassemblies proves no code changes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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