| Commit message (Collapse) | Author | Age |
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We store a reference to common address space of channels
in struct tsg_gk20a without increasing the refcount
This could result in freeing the address space even when
some channel in TSG needs it or when we need to free
common gr_ctx
Fix this by getting ref using gk20a_vm_get() when we store
the VM reference. We drop this reference with
gk20a_vm_put() when closing the TSG
Bug 1470692
Change-Id: Ifc1f29d32cd721810bfbb5a4db96095770318c17
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/495668
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Add refcounting for TSGs and manage the refcounts as below :
- initialize ref when TSG is opened
- get ref when channel is bound to TSG
- drop the ref when channel is unbound (i.e. during channel close)
- drop the ref when TSG is closed
- when refcount drops to zero, we free the TSG
This refcounting makes it possible to close channels or TSG
in any order
Bug 1470692
Change-Id: Ia4b39164a4582c8169da62a91b9131094c67f5f8
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/495667
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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gr_gk20a.c : railgating path the crash was seen
with multiple frees happening
acr_gm20b.c : failure path, kernel panic was seen,
with multiple frees
Change-Id: Ifc5e78c0ee74799c7f78e6030c02d1a27d545a1e
Signed-off-by: Supriya <ssharatkumar@nvidia.com>
Reviewed-on: http://git-master/r/494161
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Regenerate clock gating lists. Add new blocks, and takes them into
use. Also moves some clock gating settings to be applied at the
earliest possible moment right after reset.
Change-Id: I21888186c200f7a477c63bd3332e8ed578f63741
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/457698
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Enable gpu rail gating with INT_MAX delay. This will allow
teams to experiment with different rail-gate entry delay.
Change-Id: I8c696140aba2374c797365282999b6589432047c
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/491615
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mitch Luban <mluban@nvidia.com>
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Display the Falcon Trace prints in the right format.
Embedd the parameters in the string instead of printing it separately.
Bug NA
Change-Id: Ia61fc43384cf6e44a867c7aa9cbb828127146099
Signed-off-by: Vaikundanathan S <vaikuns@nvidia.com>
Reviewed-on: http://git-master/r/488757
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Bug 1500195
Change-Id: I5545d1a95a58e7daa5a74cc20f3fc6828774fc42
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/488507
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Moved detection of idempotent GPCPLL operations from set_pll_freq()
function to its callers, e.g., explicitly check when enable operation
is called on already enabled PLL, instead of passing same frequency
to set_pll_freq() in such case. Similarly explicitly check when disable
operation is called on already disabled PLL.
Also moved check for GPU powered on from set_pll_freq() to callers,
and skip call to set interface if not.
Added last GPCPLL configuration structure updated after successful
completion of set_pll_freq() function.
Bug 1450787
Change-Id: I8c14b8cab2a8548e98c9b2d223c465c68fb87b61
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/488027
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
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Change-Id: Ia9ab5ef8fbe3244b44c911d8808123e0aaf860cf
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/488611
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
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The cde shader will only read data from the global compbit backing
store. Map it as read-only to enforce this.
Change-Id: If5be44b8daedd5e7fdee650a6e76befa7bdecfd6
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
Reviewed-on: http://git-master/r/486679
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based on the config setting and fuse secure no non secure boot is done
Change-Id: I5937ba945c5a3a86f72e0f2a9078fcde01977137
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/487684
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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In gk20a_do_idle(), to get pointer to platform_device of gk20a,
we use bus_find_device_by_name() and pass "gk20a.0" to it
But this hard coding fails on gm20b since GPU device name
there is "gpu"
Hence to fix this add a static pointer handle "gk20a_handle"
to struct gk20a in gk20a.c
Now we can access this global pointer inside do_idle()
to get gk20a pointer and from that we can get pointer to
platform_device
Change-Id: I1a65588e34ad36efed0fa587bb365f0ee81e253d
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/486887
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Currently cde reinitialises the context each time before submitting
work to the channel. This was done to ensure that we are able to
get clean context for the shader during development phase. However,
as the shader has been tested to work w/o reinitialising the context,
we can remove the reinitialisation to gain better performance.
Change-Id: If0b0e03133058528da943faaeb72ca500d3ddb14
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/486673
Reviewed-by: Jussi Rasanen <jrasanen@nvidia.com>
Tested-by: Jussi Rasanen <jrasanen@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Lauri Peltonen <lpeltonen@nvidia.com>
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The nvgpu driver now supports using the Tegra graphics virtualization
interfaces to support gk20a in a virtualized environment.
Bug 1509608
Change-Id: I6ede15ee7bf0b0ad8a13e8eb5f557c3516ead676
Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-on: http://git-master/r/440122
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Current implementation is based on config GK20A_PHYS_PAGE_TABLES
to have APIs to create/free/map/unmap phys pages
Remove this config based implementaion and move the APIs so that
they are called at runtime based on tegra_platform_is_linsim()
In generic APIs, we first check if platform is linsim and if it
is then we forward the call to phys page specific APIs
Change-Id: I23eb6fa6a46b804441f18fc37e2390d938d62515
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/488843
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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PB timeout has been removed in gm20b, so write it only in gk20a.
Change-Id: I2aab92fe7d1d5de151dad768f8b3f6901ec0bbb0
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/486358
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
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Simulation does not model rails, so do not try to control them.
Change-Id: I52ec12e7865e18764274dd9ce7a2fbd196b6b9d1
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/482181
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Thomas Cherry <tcherry@nvidia.com>
Tested-by: Thomas Cherry <tcherry@nvidia.com>
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Add powergate/powerungate callbacks for gm20b configuration.
Change-Id: Ieb681b74de7ea19d172922ef68260be81b675a56
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/457352
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bo Yan <byan@nvidia.com>
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Modify the 3d.emc policy to use a formula based on bandwidth and
utilization instead of the current sku-dependent policy.
Bug 1364894
Change-Id: Id97f765a48f0aa9f5ebeb0c82bccb22db474a1ae
Signed-off-by: Samuel Russell <samuelr@nvidia.com>
Reviewed-on: http://git-master/r/453586
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Add support for multiple GPCs/TPCs to the GPC/TPC
exception handling code.
Change-Id: Ifb4b53a016e90cb54c4d985a9e17760f87c6046f
Signed-off-by: Mayank Kaushik <mkaushik@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/411660
Reviewed-by: Automatic_Commit_Validation_User
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Bug 1534793
Change-Id: I8a4c35914b58dd13a7c10c668de9d4662d947d8c
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/441377
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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PBDMA timeout can cause stale data in FIFO. Default value equals 1ms.
Increase it to max.
Bug 1537636
Change-Id: I1c6c6b10abaece3a64b77b9b3ef77ff726ff67cf
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/457047
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Allen Chang <allchang@nvidia.com>
Tested-by: Allen Chang <allchang@nvidia.com>
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Gk20a unmaps the addresses binding to dummy page to clear sparse.
On Gm20b, we need to free the allocated page table entry for sparse
memory.
Bug 1538384
Change-Id: Ie2409ab016c29f42c5f7d97dd7287b093b47f9df
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/448645
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Add below ioctl to force channel reset/recovery.
NVHOST_IOCTL_CHANNEL_FORCE_RESET
This recovery/reset is initiated by triggering
mmu fault on channel so as to force the channel
out (as oppose to waiting until channel is
preempted)
Bug 200027958
Change-Id: Idd3c10ef5fa691d746e34a8b890bd79aca815a20
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/456084
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Bug 1450798
Change-Id: I371537d086ce1088c6d007676c1fe1e2770dd4e3
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/403877
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Retrieve which TPC is floorswept.
Bug 1450798
Change-Id: I3ea60703695448c68cd3435f443b280d5b2f0995
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/403876
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Updated aelpg parameter APCTRL_CYCLES_PER_SAMPLE_MAX_DEFAULT
default value to 200
Bug 1536384
Change-Id: I090e50d0025f16c006429455d161bee26fc64173
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/455440
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Disable cyclestats register whitelist check if allow_all is
enabled through sysfs.
bug 1523403
bug 1490388
Change-Id: Iaa1cf9a8fed18f1a379cac28128793fb33567f35
Signed-off-by: Kirill Artamonov <kartamonov@nvidia.com>
Reviewed-on: http://git-master/r/454932
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Change-Id: Idf1261fe6561477f5dceea54de63326ef8a4a1b3
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/455041
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
GVS: Gerrit_Virtual_Submit
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Through this sysfs entry, the register space becomes accessible.
This is be accessible root-only.
Bug 1523403
Change-Id: Ia46f130a0cfd8324c5b675d19e7cbfba9dcb17ca
Signed-off-by: sujeet baranwal <sbaranwal@nvidia.com>
Reviewed-on: http://git-master/r/454198
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Currently cde swizzling application forces upper limit to surface
size. The limitation is artificial (i.e. nothing prevents shader
handling larger surfaces). Therefore, make the error condition a
warning.
Change-Id: I8f0cda7f2e9e9ecc90589e5a4b4091abcb513482
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/454591
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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This patch adds a parameter to communicate the compression bit
backing store address we write to the hardware.
Change-Id: Ibc0e3d8304e893ddf15b4e03b405c7d85a73e95b
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/454510
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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This patch adds support to pass shader parameters through debugfs.
These parameters are required to change the shader behaviour without
reloading the firmware image.
Change-Id: Ib0ff773d9425aa9fcc58655717cccafcfbaf7bfd
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/453462
Reviewed-by: Jussi Rasanen <jrasanen@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Jussi Rasanen <jrasanen@nvidia.com>
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We have hardcoded compbit backing store to cover 1MB of memory in
ASIM. Remove that hard coding and use the total memory size instead.
Change-Id: Ibb5c6ae88015960fa360ddd5f7bba05949d4da7b
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/450313
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Newer netlist does not require image size queries to boot. Save 2ms
from GPU boot time by skipping it if we know the sizes.
Bug 1435870
Change-Id: Ie1b13c8a6e420adf06e635bde8b469385e1d5c60
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/419873
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Workaround for GPU hang if boost turns GPU on before it is
initialized.
Bug 1435870
Change-Id: I07d0617049612344ca7c494da8cb8d75789984e5
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/453375
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"isr_enable_lock" was used to protect pmu's isr_enabled flag
and pmu enable/disable calls
Instead of this extra lock, we can reuse "isr_mutex" for this
purpose
Bug 200014542
Bug 200014887
Change-Id: Ifbb7d6108effc132266a20517820e470d52a7110
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/453348
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Add below ioctls for channels
1. NVHOST_IOCTL_CHANNEL_ENABLE
To enable the channel
2. NVHOST_IOCTL_CHANNEL_DISABLE
To disable the channel
3. NVHOST_IOCTL_CHANNEL_PREEMPT
To preempt the channel
(Not supported for a channel in TSG)
Bug 1514064
Change-Id: Ie9315f9742bb27efb22f993799c51a1ecda91756
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449229
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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This patch fixes a refcounting issue in semaphore handling.
Change-Id: I03327c60ed6923a90663f0b845566e81af4b94d4
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/453056
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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In runlist we first write channel count in TSG entry and then
follow those many channel entries
If no. of channel entries does not match to count then it is
considered as error
To detect this, add a counter while adding channel entries and
give warning if channel count does not match with this counter
bug 1470692
Change-Id: I4bbfd9b696fbfafa25dffb27979373f057a7f35a
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449228
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Currently we clear the runlist and re-create it in
scheduled work during fifo recovery process
But we can post-pone this runlist re-generation for
later time i.e. when channel is closed
Hence, remove runlist locks and re-generation from
handle_mmu_fault() methods. Instead of that, disable
gr fifo access at start of recovery and re-enable
it at end of recovery process.
Also, delete scheduled work to re-create runlist.
Re-enable EPLG and fifo access in
finish_mmu_fault_handling() itself.
bug 1470692
Change-Id: I705a6a5236734c7207a01d9a9fa9eca22bdbe7eb
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449225
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Modify TSG's channel list as "ch_list" for all channels
instead of "ch_runnable_list" for only runnable list
We can traverse this list and check runnable status of
channel in active_channels to get runnable channels
Remove below APIs as they are no longer required :
gk20a_bind_runnable_channel_to_tsg()
gk20a_unbind_channel_from_tsg()
While closing the channel, call gk20a_tsg_unbind_channel()
to unbind the channel from TSG
bug 1470692
Change-Id: I0178fa74b3e8bb4e5c0b3e3b2b2f031491761ba7
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449227
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Reading the load value may increase CPU power consumption
temprorarily. In most cases we are ok with a value that
was read a moment earlier.
This patch introduces a software shadow for gpu load. The shadow
is updated before starting scaling and all scaling code paths use
the sw shadow.
Change-Id: I53d2ccb8e7f83147f411a14d3104d890dd9af9a3
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/453347
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Bug 1409151
Change-Id: I29a325d7c2b481764fc82d945795d50bcb841961
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
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Add retrieving error code for FECS errors.
Change-Id: I7d9dfc4723376272edb2e5b2ef06f71de1a06889
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/450351
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Chris Dragan <kdragan@nvidia.com>
Tested-by: Chris Dragan <kdragan@nvidia.com>
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Added PROD settings for ELPG sequencing registers
Bug 200023161
Change-Id: Id313f9bc800d3a57f45aff0f0f609887565971be
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
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1. Register tegra-throttle cooling device as a
platform driver.
2. Obtain all the platform data (throtlle table
info) for all instances of blanced-throtlled cdev
from device tree and register them.
Change-Id: Ie92685eea3eb5cb18068b195adc9ab5f83762399
Signed-off-by: Arun Kumar Swain <arswain@nvidia.com>
Reviewed-on: http://git-master/r/449104
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Tested-by: Diwakar Tundlam <dtundlam@nvidia.com>
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Allocate enough pages in the case that compbit_backing_size is not a
power of two.
Change-Id: Iaa2da66a3d1bd86ac746ed619a7f37e9379904db
Signed-off-by: Edgardo Handal <ehandal@nvidia.com>
Reviewed-on: http://git-master/r/449460
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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Added "aelpg_enable" sysfs node to enable/disable aelpg.
Bug 1464737
Change-Id: Ia0eadbea59e2f9373ab5f413fa6e28780aff3c3c
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
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return error from pmu_mutex_acquire() and release() if
pmu->initialized is not set
Bug 1533644
Change-Id: I341a5831bc5beeccb4587668f61c954ce7576226
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
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