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81 Commits

Author SHA1 Message Date
Mahesh Kumar
99b291c567 platform: dce: remove unused parameter 
This patch removes unused parameter w_type from dce_admin_ipc_wait
function.

Jira TDS-15438

Change-Id: Ida2bbca042a32b5aede32821157995b4aaa2db47
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3236783
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2025-07-24 10:19:09 +00:00
Mahesh Kumar
9a1b69df09 platform: dce: Add t264 halify function support 
This patch moves T264 files to nvidia-oot repo and adds support
to to Halify HSP functions for T239.

Jira TDS-15438

Change-Id: Ie42d15ab27f9a71312063a4067629030be6869c8
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3233122
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2025-07-24 10:19:09 +00:00
Mahesh Kumar
2d2fc21cec platform: dce: move hw headers to soc folder 
This patch moves HW headers to SOC-specific subfolder to avoid conflict.

Jira TDS-15438

Change-Id: I45796dbe445319dd5d71a304732e11c858135345
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3227902
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
 2025-07-24 10:19:09 +00:00
Mahesh Kumar
9a401f8077 platform: dce: Halify HSP functions 
This patch Halify HSP access functions. SOC-specific HSP functions
are assigned during driver prob based on of_device_is_compatible check.

Jira TDS-15438

Change-Id: Ia8d68cd658eaa06dd5d06e8ba92f32907a31fd4f
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3225858
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2025-07-24 10:19:09 +00:00
Mahesh Kumar
46b8dfe796 platform: dce: Pass hsp-id to the hsp smb functions 
This patch modifies HSP SMB functions to use hsp-id as an input.
This is a prework to support multiple instances of DCE HSP.

Jira TDS-15438

Change-Id: I046e456979b58c74bd39b91889b9cf12065646cb
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3225857
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
 2025-07-24 10:19:09 +00:00
Mahesh Kumar
96b5772e6d platform: dce: Pass hsp-id to the hsp ss functions 
This patch modifies HSP SS functions to use hsp-id a s input.
This is a prework to support multiple instances of DCE HSP.

Jira TDS-15438

Change-Id: Ie359032100fac593dc789fa2f3aefda6123dce7b
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3225856
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
 2025-07-24 10:19:09 +00:00
Jon Hunter
f01227d4ea drivers: Drop inline from driver remove wrapper 
The driver remove function is a function pointer and therefore, it does
not make sense to define the function as an 'inline'. Update the
coccinelle script and drivers to remove the inline statement.

Bug 4749580

Change-Id: Ia03691b75c4edffe609f27468b911a92a5ddbd68
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3233980
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2025-07-24 10:19:08 +00:00
vinodg
d7a9c5b734 dce: update for mods test 
DCE FW will run the dma test using 512 bytes of transfer
between dram and tcm for 400 iterations and alu test
generating 100 prime numbers for 200 iterations.
DCE running above 600Mhz will take nearly 50msec
for each test.

Jira TDS-16211

Change-Id: I34570acd4db6b8103bd2451833b280dc8e32131a
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3192552
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
 2024-08-16 11:01:46 -07:00
Jon Hunter
951b2423a8 drivers: Fix platform_driver remove for Linux v6.11 
In Linux v6.11, the 'platform_driver' structure 'remove' callback was
updated to return void instead of 'int'. Update all the impacted drivers
as necessary to fix this.

Bug 4749580

Change-Id: I3bb5c549777f7ccad0e3f870373fdd25726ad7ed
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3182878
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Tested-by: Brad Griffis <bgriffis@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
 2024-08-11 17:20:34 -07:00
Jon Hunter
ab65399274 drivers: Fix missing headers for Linux v6.8 
For Linux v6.8, commit ef175b29a242 ("of: Stop circularly including
of_device.h and of_platform.h") updated the OF headers included by these
header files. This breaks the build for various drivers and so fix this
by including the headers that are actually needed for each driver.

Bug 4448428

Change-Id: Ia40ab13f865d5631c96855ecc49145848f99c996
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3032442
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
 2024-01-25 09:11:21 -08:00
Mahesh Kumar
8103bafdc3 dce: handle DCE_ADMIN_CMD_VERSION failure 
Fail on DCE_ADMIN_CMD_VERSION command failure.
Also print dce-kmd admin version for comparison.

Bug 4264719

Change-Id: Ifde58147fd0ed3c311e0d342d664ab446a7eda78
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3046184
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2024-01-08 19:54:30 -08:00
Mahesh Kumar
b0a2e7383c platform: dce: Make dce suspend a late suspend 
Once DCE suspend is called it disables the DCE controller
later DCE controller can be brought out of reset only by MB2RF,
But if after dce suspend due to any reason system suspend fails, mb2rf
will not be called. And the display will not work.

This patch makes DCE suspend a late suspend. So, it reduces the race
condition window.

Bug 3826630

Change-Id: I7a75996d820addf4e8d694efbb3cf05d00185fea
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3021775
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-12-15 06:20:19 -08:00
Jon Hunter
d5391a25ab drivers: Enable -Wmissing-prototypes 
The compiler option -Wmissing-prototypes is being enabled globally in
the upstream Linux kernel and this causes build failures for various
drivers. The build failures occur because either the driver is missing
an include file which has the prototype or because the function is not
declared statically when it should be (ie. there are no external users).

Fix the various build failures and enable -Wmissing-prototypes to
prevent any new instances from occurring. Note that the only driver that
is not fixed at the moment is rtl8822ce due to large number of failures
and so build this with '-Wno-missing-prototypes' for now, which is not
different to how it was being compiled prior to this change.

Bug 4404965

Change-Id: Ie5572d23659e0346fa035d645d9043b0a6da5fdc
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3027488
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2023-12-14 02:07:24 -08:00
Laxman Dewangan
1d4285fa30 dce: Use kstrtobool instead of strtobool 
The function strtobool() is implemented inline with
using kstrtobool(). The function strtobool() is removed
from mainline Linux 6.7 with below change.

**
commit 9bf2850c9170b52a6ab052085feced55effa78ef
Author: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

    kstrtox: remove strtobool()
**

Use the kstrtobool() now.

Bug 4346767

Change-Id: I3b63684bcfc5621a3833b62061ea1cfdf44b3865
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3019996
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-11-23 11:09:18 -08:00
Jon Hunter
19fb93666d platform: tegra: dce: Use conftest 
Instead of relying on kernel version to determine if the 'tegra_ivc'
structure has a member that is of type 'struct iosys_map', add a compile
time test to the conftest.sh script to determine this at compile time
for the kernel being used. This is beneficial for working with 3rd party
Linux kernels that may have back-ported upstream changes into their
kernel and so the kernel version checks do not work.

Bug 4119327

Change-Id: Ia993ca9df7694347252a795c7dee1e95f2f9fa2f
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2985743
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2023-09-30 06:46:02 -07:00
Mahesh Kumar
4ded4286d6 platform: dce: prevent dce driver unloading 
DCE-KMD driver does not support reloading of the driver today.
Support will be added in the future.

As a WAR this patch prevents unloading of the driver.

Bug 4239420

Change-Id: I29f60fbaaf99f5f4e22f75b6674bd1a543b83c1a
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2968906
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Vinod Atyam <vatyam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Tested-by: Vinod Atyam <vatyam@nvidia.com>
 2023-09-06 17:05:13 -07:00
vinodg
d49cb5b97d drivers: dce: Increase the HSP max count 
Increase the hsp index max count to 3

Jira TDS-13541

Change-Id: Ic74eae415a14f5ccb34fc079062e00bc83a3e03a
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2948232
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-08-31 05:34:45 -07:00
Jon Hunter
b970ad45ec platform: tegra: dce: Remove unneeded warning flags 
The Tegra DCE driver compiles fine without the GCC flags to disable
specific warnings and so remove these to catch any new warnings that get
introduced that might be missed with these flags in place.

Bug 4190165

Change-Id: I4f2d445588baecec89ca9ba979e5d8febe39cf3c
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2938374
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-07-19 08:46:58 -07:00
Mahesh Kumar
2ea5632398 platform: dce: reset condition variable after use 
Once we complete EVENT_ID_DCE_BOOT_COMPLETE_RECEIVED event handling, it
doesn't reset the complition variable. Which causes
dce_wait_interruptible to exit early without waiting in next cycle.

This patch fixes the same by resetting complition variable after use for
EVENT_ID_DCE_BOOT_COMPLETE_RECEIVED.

Bug 4167219

Change-Id: Id9b9047fa0e293f8616e23a5c8b4b1bacf233934
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2927740
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-07-12 19:00:52 -07:00
Santosh Reddy Galma
ebbb6ea7a2 platform: tegra: dce: fix coverity defect 
- check the handle is valid before retrieving the
client structure for the handle during client unregister.

Bug 3952896

Change-Id: I6f37625e01453055fb4dc256cffb1f85f199aa36
Signed-off-by: Santosh Reddy Galma <galmar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2922622
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-06-20 15:09:10 -07:00
Mahesh Kumar
0721b513a2 platform: dce: coverity fixes 
Comparing an array to null is not useful:
events->events[i].name == NULL, since the test will
always evaluate as true.

Bug 3952896

Change-Id: I322b768beb5dce9159892d26b6ca1813e141d2da
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2921050
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-06-14 22:58:13 -07:00
Mahesh Kumar
bb386083e8 platform: dce: decrease verbosity of debug print 
Decrease verbosity of debug print during IPC signal.

Bug 3921505
Bug 4080364

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I6fa2b6472e75d0f890d105109f30c6291bb0fe7a
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2919258
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-06-14 22:55:23 -07:00
Mahesh Kumar
d4185fbe2e platform: dce: add delay between ipc_notify admin-seq 
Add a few microseconds delay between sending ipc-notify calls for IPC
channel reset. IPC notify ACKs are asynchronous and sending notify when
the previous ACK was still in progress will cause spurious interrupt/ACK
signal and printout FSP state warnings.

Bug 4069133

Change-Id: I20dff299149a66629dc23ab2a7cb7765eac1b4dc
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2900570
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Vinod Atyam <vatyam@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Tested-by: Vinod Atyam <vatyam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2902404
 2023-05-15 01:18:59 -07:00
Laxman Dewangan
ee73b0ff55 dce: Get rid of explicit header inclusion 
The required headers for dce driver are already
included in the master makefile. Hence, it is not
required to add include path explicitly.

Bug 4087103

Change-Id: Ied598dc7bf1c49fe42869a254b26aa1e2989e73b
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2894618
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-27 02:55:45 -07:00
Laxman Dewangan
b20c5f57e3 dce: Use SPDX license GPL 2.0-only format 
Use SPDX license GPL-V2.0 format and change Nvidia
copyright year to include 2023.

Bug 4078035

Change-Id: Icc0060431eb8d9c470a44f4cee50913cc1d8048a
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2890656
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-21 11:41:56 -07:00
Laxman Dewangan
a9e9f0cde1 dce: Get rid of CONFIG_TEGRA_DCE 
The config variable CONFIG_TEGRA_DCE is set as m
inside the Makefile for OOT build. As the dce driver
inside nvidia-oot only build as module and there is
no Kconfig, remove this config variable.

Bug 4074863

Change-Id: I16436e97db583f2a8184dfffc3e18ebfddb62967
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2889992
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-19 10:58:10 -07:00
Mahesh Kumar
873e421d95 platform: dce: Add Debugfs support for Perf 
Add debugfs nodes
 - start/stop perf stats.
 - read perf stat stats
 - set the format type as csv or xml

Add debugfs to capture perf events
 - Can enable specific perf events
through debugfs node.

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I0a7833d7a8f04296ba3806f4f2a218175080d2e2
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2765513
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Tested-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:36:09 +00:00
Vince Hsu
b25786578c platform: dce: fix compilation error with GCC 11 
GCC 11 reports the array-bounds issue when passing an 32-bit variable
to find_first_bit but referencing it as 64-bit.

drivers/platform/tegra/dce/dce-debug.c: In function ‘dbg_dce_boot_status_fops_read’:
./include/linux/find.h:119:37: error: array subscript ‘long unsigned int[0]’ is partly outside array bounds of ‘hsp_sema_t[1]’ {aka ‘unsigned int[1]’} [-Werror=array-bounds]
  119 |                 unsigned long val = *addr & GENMASK(size - 1, 0);
      |                                     ^~~~~
drivers/platform/tegra/dce/dce-debug.c:493:20: note: while referencing ‘ss’
  493 |         hsp_sema_t ss = dce_ss_get_state(d, DCE_BOOT_SEMA);
      |                    ^~
...
from drivers/platform/tegra/dce/dce-debug.c:15:
./include/linux/find.h:119:37: error: array subscript ‘long unsigned int[0]’ is partly outside array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Werror=array-bounds]
  119 |                 unsigned long val = *addr & GENMASK(size - 1, 0);
      |                                     ^~~~~
drivers/platform/tegra/dce/dce-debug.c:492:13: note: while referencing ‘boot_status’
  492 |         u32 boot_status = d->boot_status;
      |             ^~~~~~~~~~~
cc1: all warnings being treated as errors

Fix it by passing a 64-bit variable to find_first_bit directly.

Bug 200730650

Change-Id: Ibfb68a2ee175aeb60eb9248496c220b35ff98906
Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2856358
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
vinodg
47b8841a62 platform: dce: Fix typecast issue 
Sparse shows error for using __iomem pointer for
void pointer as incorrect type in assignment.

No need to use __iomem pointer, as this address
is never meant for device memory.

Changed iosys_map_set_vaddr_iomem to
iosys_map_set_vaddr call.

Bug 3646321

Change-Id: I3ebe3db14a7953ab42cd1392b54c74e86dc1243d
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2846522
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
vinodg
658865f51a platform: dce: fix missing static declarations 
Fix sparse errors for static declaration.

Update functions and variables defined and used
in the same source files with static declaration.

Bug 3646321

Change-Id: I378b0f514aedf265420c2eb454691e85c378cd95
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2846452
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
1258e71941 platform: dce: fix wait race condition 
It is possible that we received the ACK from DCE even before we
start waiting. But currently we are clearing the "complete" state
before start waiting, which may result in missed interrupt.

This patch removes the clearing of complete state before wait.
Also Adds few comments for better understanding.

Bug 3941557

Change-Id: I7d2efb1a64eb6f2d4df1876add07a8f019b449f5
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2845498
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
387a379024 platform: dce: add wait in ipc registration 
If DCE bootstrapping is not complete, client registration may fail or
result in IPC failures.
Wait for bootstrapping to complete before registering any IPC-Client.
Use high priority work queue to schedule bootstrap work.

Bug 3583331
Bug 3826630

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I0facfe225e1550c795c2de7b42916416faa3bcaa
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2834857
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2824219
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
75bfcf326d platform: dce: Add suspend resume hooks 
Add suspend resume hooks function and handling of sc7 events.

Bug 3583331
Bug 3826630

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I920b02ad46a76330febe666fe17e8d328f744b1d
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2834856
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2824218
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
 2023-04-14 19:23:43 +00:00
Santosh Reddy Galma
31b6d913ab platform: dce: add device_link b/w display and dce 
- add the device link between display and DCE such that
DCE KMD module will enter suspend after display suspend is
complete and DCE KMD module resumes early before display
resumes as DCE bootstrap has to be complete for display
to proceed with initialization.

Bug 3685062
Bug 3826630

Signed-off-by: Santosh Reddy Galma <galmar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2780892
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Change-Id: I4d84d8b5723747d984f0883aba697a5a0a0a21bf
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2824217
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Tested-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Jon Hunter
12a8ee706f platform: dce: Fix build for Linux v6.2 
Upstream Linux commit 4c1e0a97351a ("firmware: tegra: bpmp: Use
iosys-map helpers") updated the Tegra IVC driver to use the iosys-map
helpers for Linux v6.2. Update the DCE driver accordingly to work with
the latest Tegra IVC driver.

Bug 3936429

Change-Id: Id04fa3cbc078ed9657ae779b6a1bbd088008175c
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2842560
(cherry picked from commit 545f887e90cffff1d79f6a4ff0af87ddfcbeb178)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2801234
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
5d5463b60f platform:dce: notify dce after state ack 
The current code doesn't notify DCE IPC after DCE IPC is in ACK state
Current Flow:

         CPU                      DCE
1: tegra_ivc_init               ---------
2: DCE_ADMIN_CMD_IPC_CREATE     tegra_ivc_init
3:     ---------                tegra_ivc_channel_reset
                                    dce:SIVC_STATE_SYNC
                                    cpu:ESTABLISHED
4: tegra_ivc_reset
       dce:SIVC_STATE_SYNC      ---------
       cpu:SYNC
5: Notify()                     tegra_ivc_channel_notified
                                    dce:SIVC_STATE_ACK
                                    cpu:SYNC
6: tegra_ivc_notified           ---------
       dce:SIVC_STATE_ACK
       cpu:ESTABLISHED

After Step 6 DCE state is in ACK state and CPU state is in ESTABLISHED
state. As there is no further cpu->dce notification in RM_NOTIFY
channel, dce state stays in the "ACK" state and any attempt to send msg
on RM_NOTIFY channel from dce->cpu fails.

This patch notifies dce after step-6, So dce channel is also in the
"ESTABLISHED" state.

If steps 3-6 get executed in CPU before Step 5 in DCE gets a chance
to execute (DCE is slow), the CPU IPC state will change to "established".
Now when step 5 will execute in DCE, it'll see the CPU state as
"established" so, It'll make the DCE state also "established".
That's how it's working today.

Bug 3861985

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: Ieb13f525d3f81b30aaae848d8d5adb1106856b65
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2840065
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Adeel Raza
424a1c66f0 platform: tegra: dce: change license to MIT for errors header 
When dce-core-interface-errors.h was copied from DCE FW, the header
incorrectly retained its proprietary license. The license has been
changed to MIT.

Bug 3198239
JIRA TDS-6362

Signed-off-by: Adeel Raza <araza@nvidia.com>
Change-Id: I8fb1c525c11207444655af81f5b103f2908b98ef
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2834612
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Jon Hunter
9116ef8c3e platform: dce: Add license and copyright to Makefile 
Add the GPL v2.0 license and NVIDIA copyright to the DCE Makefile.

Bug 3912236

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Change-Id: I75044962d68a556c8b6b5ae7d09d44f8ff61b515
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2828593
(cherry picked from commit 15f8adb73788f0073f3f6e960fdadb04246c869a)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2829455
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
3c473c60eb platform: dce: set MIT license for dce headers 
Change NV license for dce headers to MIT license as those
can be distributed with other linux sources but they are also
used in DCE firmware.

Bug 3871403

Change-Id: I363d252a1155e3e0119d46b35b073bd6ad10fc57
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2820110
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Ujwal Patel <ujwalp@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
bb8fc06951 platform: dce: fix async msg read prints 
While MST is used, We get two async msgs from DCE and schedule 2 worker
threads, But during processing (dce_client_process_event_ipc) of these
messages, We are processing all the pending messages in one go. So,
while the second worker thread is scheduled, there is no new message
to read.

This Patch fixes the loop to try reading only when there is a new msg to
read. Also convert info print to debug, to avoid print noise.

Bug 3801736

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: Iddf9ea8f0194539baa8c52616e2f836527400176
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2810440
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Jon Hunter
6379e130a8 platform: dce: Fix automatic loading with DT 
The Tegra DCE module is not automatically loaded on boot with
device-tree and this is because the MODULE_DEVICE_TABLE is not populated
in the driver. Add the MODULE_DEVICE_TABLE for the DCE driver to fix
automatic loading with device-tree.

Bug 3583600

Change-Id: I487d4de8b8e9e71a7c3ad961845c346e886e632e
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2805837
Tested-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
fde8d45bbe platform: DCE: Add OOT support for ipc 
Reorg DCE-KMD IPC code to use only upstream IVC APIs
This will simplify integrating the code for OOT.

Bug 3583600
Bug 3713048

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: Ia124f7bc77a788b94b0bf60634ed740c77228725
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2790847
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
a42af2d0ad platform: dce: Coverity Fix 
Fix Coverity issue CID 10138164
Create new macro to avoid non-reachable code.

Bug 3461002

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: Ie5ff50678e30ae0ddd712ceda212f4b572ce624e
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2765168
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
 2023-04-14 19:23:43 +00:00
Adeel Raza
c032aa992e platform: tegra: dce: Add debugfs for external tests 
External clients such as MODS require the ability to run tests. Add
support for this feature. Currently only the following 2 external client
tests are supported:
  - MODS ALU test
  - MODS DMA test

Bug 3198239
JIRA TDS-6362

Change-Id: I18c20a9fa5d2606056d65b76fbaae9b0c81746d4
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2606595
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2023-04-14 19:23:43 +00:00
Adeel Raza
d05457f954 platform: tegra: dce: Proper error codes for admin cmds 
Currently admin channel commands return error codes which can't be
understood by KMD. Standardize on DCE_ERR_CORE_* errors (defined in
dce-core-interface-errors.h) for admin commands.

Bug 3198239
JIRA TDS-6362

Change-Id: I42a9ae44c0999aa5133c36ba4c6fb4fee2b25767
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2736608
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
8ef1f2db87 platform: dce: FSM incremental fixes 
This patch addresses design review comments for FSM
 - Add comment to update design doc on FSM update
 - Create wrapper function to check bootcmd complete status
 - move bootstrapping functions to dce_bootstrap.c file
 - Fix sw resource init/deinit function name

Bug 3583331

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I77f05135f7ec1882922907f8acef50def639d26d
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2758902
Reviewed-by: Santosh Galma <galmar@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
5aa80075ad platform: dce: remove use of of_irq_xxx 
of_irq_xxx faimly of functions are not exported by Kernel.
use platform_irq_count and platform_get_irq APIs instead.

This patch also moves dce_platform_data elements to dce_device
struct to keep dce_platform_data constant.

Bug 3581824

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I5ea13ea039ef1464e678f0604a045a6ab67bc16f
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2755141
Reviewed-by: Santosh Galma <galmar@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
df0f2d1a74 platform: dce: add support for multiple HSP 
Change-Id: Ia6d3278b89f5ba34bd6bbbd80820279e4e06fc0b
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2727625
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
28a1cfd1c1 platform: dce: reworked dce FSM design 
Redesign DCE KMD drive state machine to handle new PM events.

Bug 3583331

Change-Id: I89adcfa2f311a9a1e86b70e14821468203365266
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2673665
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit
 2023-04-14 19:23:43 +00:00
Mahesh Kumar
a6cc70f8d5 platform: dce: remove debugfs on deinit 
Current code does not remove debugfs node on deinit.
This patch fixes the same.

Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Change-Id: I9ceb78b73d71aca0a2363df0408bf6a85ca91834
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2743215
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: Gerrit_Virtual_Submit
 2023-04-14 19:23:43 +00:00