Commit Graph

27 Commits

Author SHA1 Message Date
jaiyasha
c89da8defd DCE-KMD: Add support for logging infra
- Allocate DMA mapped buffer from DCE-KMD and pass it to DCE FW through
  admin-cmd calls.
- Add debugfs node to retrieve buffer data and print through seq file.
- Add support to clear log buffer

JIRA TDS-15963

Change-Id: Ied4ffe1df14c8db61cfe15e6442f55e8306530b8
Signed-off-by: jaiyasha <jaiyasha@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3117241
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Tested-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
2025-07-24 10:20:35 +00:00
anupamg
283315b000 DCE-KMD: Rename dce-os-device.h
- Rename dce-os-device to dce-linux-device

- dce-os-device.h header is specific to OS and is only intended
  to be internally used within OS. Similarly all it's exposed
  functions are OS specific only.

- Therefore instead of having a common name for all OSs for this
  header file, make this header internal by including linux
  name to it's naming convention.

- Similary rename dce_os_device struct to dce_linux_device and
  also rename corresponding functions from this header.

JIRA TDS-16126

Change-Id: I74e2deb17f49065d242bd80d50c5a849b3dfa3a1
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3256403
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
71f130a999 DCE-KMD: Address admin buffer sync access issue
- I2b8a24f9044bc08e10e5ff8cbf0c3f51fa53ff53 change introduced
  an issue of concurrent accesses of admin message buffer
  by different admin channel clients.

- This change will fix this issue by adding set of buffers per admin
  channel client.

- When a admin channel client wants to use a buffer it will
  have to request using it's client ID.
  Buffer will be granted only if at least one buffer for that client
  is not in use.

- Admin channel clients must release the buffer once done with the
  usage so that it's available for other accesses by the same client.

- Do we need a mutex to protect this array?
    1) There's no issue if different clients are trying to get/put
       buffers concurrently since each query will operate on
       separate per client array.
    2) We've an assumption that none of the clients will be active
       during init. This is also documented as part of function
       documentation.
    3) Will we ever have a usecase where a same client does
       get/put concurrently?
    4) Is it possible for a client to be active during de-init?

- If answer to 3 or 4 is yes then we still need a mutex to protect
  the buffers.
    - Currently we've assumed that there woudn't be concurrent
      operations during init/deinit and on same client so
      we're not introducing any mutex.

JIRA TDS-16126

Change-Id: I2ab640dc7c8ee6dedc9179dbb726368c3cb7d65f
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3249307
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
46895eb9cd DCE-KMD: Make certain util functions static
- This is a follow-up CL to address comment from
  I42bfe95aa81823dc077ae0964eb6288a1f25fc17

- Certain utils functions are used in single files so make
  them static and move to files in which they are used.

- Rename these from dce_os*() to dce_().

- Delete dce_get_fw_phy_addr() as it's unused.

JIRA TDS-16126

Change-Id: I6049ae1d381ac9c18acbcd3b2584d4d8ab3f2dc0
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3248435
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
7970c223dc DCE-KMD: OS abstraction renaming
- Rename following functions from dce-os-utils.c from
  dce_*() to dce_os_*()
    dce_get_phys_stream_id
    dce_get_dce_stream_id
    dce_get_fw_vm_index
    dce_get_fw_carveout_id
    dce_is_physical_id_valid
    dce_get_fw_dce_addr
    dce_get_fw_phy_addr
    dce_get_fw_name
    dce_thread*
    dce_ipc_init_region_info
    dce_ipc_de_init_region_info

- Move include/dce-thread.h to
  os/linux/include/dce-os-thread.h

JIRA TDS-16126

Change-Id: I42bfe95aa81823dc077ae0964eb6288a1f25fc17
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3233170
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
ea36afee6c DCE-KMD: Update OS abstraction - Part 2
Modules covered in this CL:
1) dce-os-log

This is not a functional CL. It does the following:
1) Rename dce_<info/err/debug/warn> to
   dce_os_<info/err/debug/warn>

2) Rename dce_log_msg() to dce_os_log_msg()

3) Rename DCE_<WARNING/ERROR/INFO/DEBUG> to
   DCE_OS_<WARNING/ERROR/INFO/DEBUG>

4) Move dce-log.h to os/linux/include/dce-os-log.h

5) Stop using old abstraction:
    a) Replace <os-dce-log.h> includes with <dce-os-log.h>

6) Delete all related old deprecated log files:
    a) os/include/linux-kmd/os-dce-log.h
    b) os/include/os-dce-log.h

JIRA TDS-16126

Change-Id: I75ebe98a785c298678d80371184efae6e46932ee
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3228536
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
2f1230b256 DCE-KMD: Update DCE OS abstraction - Part 1
- We will keep single abstraction layer for linux.
    - File: dce-os-*
    - Fn: dce_os_*()

Modules covered in this CL:
1) dce-os-types
2) dce-os-atomic
3) dce-os-utils
4) dce-os-device
    - This is renamed to dce-linux-device in
      I74e2deb17f49065d242bd80d50c5a849b3dfa3a1

JIRA TDS-16126

Change-Id: I2d5eb45da4f245c1491645b27e2be9141bc038df
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3228474
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
f5d25922eb DCE-KMD: admin: Allocate msg buffer at init time
- Reserve message buffer for DCE admin channel at init time
  since dynamic memory allocations are restricted on HVRTOS.
    - Free this during channel deinit.

- Use this reserved message buffer at all other callsites.

JIRA TDS-16052

Change-Id: I2b8a24f9044bc08e10e5ff8cbf0c3f51fa53ff53
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3180403
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
4a07fca949 DCE-KMD: Use OS abstraction for logging
- Use OS abstraction added to display/drivers/server
  for OS logging support.

JIRA TDS-16052

Change-Id: I73f36f1c50b52f5323496bb6dc180b1bd8ddabe3
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3172655
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
0dfd61c0e7 DCE-KMD: Use OS abstraction for dce_device
- Use OS abstraction added to display/drivers/server
  for dce_device.

JIRA TDS-16052

Change-Id: I2339ad423ad38e8c3ba0f3205d80f172a4d0abe9
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3172565
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
8f1271978c DCE-KMD: Use OS abstraction of utils
- Start using OS abstraction for all utility functions.

JIRA TDS-16052

Change-Id: Ic1e0f059194e15ff7dff0fa97997bd0d69dfc58c
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3172545
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
2025-07-24 10:19:12 +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
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
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
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
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
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
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
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
Mahesh Kumar
716c1f3cdb platform: dce: functionality fixes
This patch make changes to

declare of_device_id __weak so that other declarations
can take precedence.
validate return value from find_first_bit function to avoid overflow
when No bits are set.
%s/dce_stream_id/stream_id/

Jira TDS-9583

Change-Id: I85c681b904c7a4f9df76ec8387231a17de2e6d77
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2645913
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: Arun Swain <arswain@nvidia.com>
2023-04-14 19:23:43 +00:00
Mahesh Kumar
4730a3c30c platform: tegra: dce: Add debugfs for echo cmd
This patch adds a debug node to send ADMIN_ECHO commands to the DCE.
node takes number of echo commands to be sent as input.

JIRA TDS-5692

Change-Id: If3cfcef3b0ac703754ee9a4146ab417978cdbe46
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t23x/+/2487659
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Adeel Raza <araza@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
2023-04-14 19:23:43 +00:00
Mahesh Kumar
9764cf5370 tegra: dce: Add IPC event notification support
- This change adds support for new IPC type
DCE_IPC_TYPE_RM_NOTIFY wrt event notification from
DCE RM

JIRA TDS-6643

Change-Id: I54b22e3fa86a1dab552f78d609c374d14ce619ad
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t23x/+/2409904
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Santosh Galma <galmar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Santosh Galma <galmar@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2023-04-14 19:23:43 +00:00
Mahesh Kumar
dc3e980731 tegra: dce: Add debugfs node to show boot status
This patch adds a debugfs node to show DCE boot status.

It also adds following dce boot marker in logs
  - DCE_BOOT_DONE
  - DCE_BOOT_FAILED

JIRA TDS-5691

Change-Id: Iada5c1234e5e5f1a5e7afd88dcb94c2da6a3fe1c
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t23x/+/2361287
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Santosh Galma <galmar@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: Santosh Galma <galmar@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
2023-04-14 19:23:43 +00:00
Arun Swain
606f03fbf2 platform: tegra: dce: add dce kernel driver
For T23x, we have a separate R5 based cluster
named as Display Controller Engine(DCE) to run
our Display RM code. This driver will run on CPU
with the following functionality:

Via debugfs for test and bring-up purposes:
1. Reads the DCE firmware image into DRAM.
2. Sets up DCE AST to cover the DCE firmware image.
3. Sets up R5 reset vector to point to DCE firmware
entry point
4. Brings DCE out of reset
5. Dumps various regsiters for debug

In production env:
1. Manages interrupts to CPU from DCE
2. Uses bootstrap command interface to define Admin
IPC
3. Locks down bootstrap command interface
4. Uses Admin IPC to define message IPC
5. Uses Admin IPC to define message IPC payload area
6. Uses Admin IPC to set IPC channels
6. Uses Admin IPC to define crashdump area
(optional)
7. Provides IPC interfaces for any DCE Client running
on CCPLEX including Display RM.
8. Uses Admin IPC to set logging level (optional)

This patch puts a framework in place with the
following features :
1. Firmware Loading
2. AST Configuration
3. DCE Reset with EVP Programming
4. Logging Infra
5. Debugfs Support
6. Interrupt Handling
7. Mailbox Programming
8. IPC Programming
9. DCE Client Interface
10. Ftrace Support for debug purposes

Change-Id: Idd28cd9254706c7313f531fcadaa7024a5b344e7
Signed-off-by: Arun Swain <arswain@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t23x/+/2289865
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-by: Santosh Galma <galmar@nvidia.com>
Reviewed-by: Mitch Luban <mluban@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Mahesh Kumar <mahkumar@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2023-04-14 19:23:43 +00:00