Commit Graph

8 Commits

Author SHA1 Message Date
anupamg
7726f604ca DCE-KMD: Revert "DCE-KMD: Add define for USE(x)"
- Revert commit to add USE() define as we've removed all
  usages by adding meningful checks instead.

This reverts commit 4c584ae1dbfd0516178a3fa9227ec6ded40363c8.

JIRA TDS-16126

Change-Id: Ic22ca046a036e8c9883d2857a8de325ee1874980
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3232193
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
f03b71480a DCE-KMD: Add new DCE OS interface: types.h
- This change will add new DCE OS interface for types.h.

- This DCE OS interface layer will act as entry point to OS layer
  from core DCE-KMD code.

- The intended usage is as follows.
    - DCE-KMD core will include respective OS header file from
      DCE OS interface.
        Eg. In dce-fsm.c
            #include <dce-os-types.h>
    - DCE OS interface will further include OS specific files
        Eg. In dce-os-types.h
            #include <os-types.h>
    - OS specific files will reside in respective OS specific paths.
        Eg. for Linux the path will be
            kernel/nvidia-oot/../dce/os/include/linux/os-types.h
        For HVRTOS the path will be
            display/server/os/include/hvrtos/os-types.h
    - The OS specific paths will be directly included in respective
      OS makefiles during compilation so that we don't need to use
      ifdefs within DCE OS interface layer.

- This is first change to follow this convention for types.h.
  We will have follow-up CLs to follow this suite for all other
  OS dependencies for DCE-KMD.

JIRA TDS-16126

Change-Id: Ied7bee6eac5de9134b973e74020df200707afa10
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3224052
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
cac31260fe DCE-KMD: Add define for USE(x)
- Add define for USE(x) for Linux. It's required to resolve
  warnings for unused variables across DCE-KMD codebase.
  For HVRTOS such warnings are treated as errors so this is
  a must.

- For HVRTOS the define comes from os_port.h

- USE(x) is removed in Ic22ca046a036e8c9883d2857a8de325ee1874980
  after replacing the USE(x) usages with appropriate checks.

JIRA TDS-16052

Change-Id: Icb2c14036a4194bcff89ede3a5f500f71568a2a7
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3188577
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
2025-07-24 10:19:12 +00:00
anupamg
8533f2be4a DCE-KMD: Use OS abstraction for types.h
- DCE-KMD code is only compiled on Linux Kernel today. So it has
  some linux specific dependencies.

- We will be compiling the same code for new DispalySerer HVRTOS
  process. To support this we will need to abstract out OS
  specific dependencies from DCE-KMD.

- Common OS abstraction code will be developed under display/drivers/
  server/ repo.

- DCE-KMD will start using that os abtsaction and this is the first
  CL towards that effort.

JIRA TDS-16052

Change-Id: I51fba684ac285139225a2999338e73c724d9d499
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3167249
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
Reviewed-by: Mahesh Kumar <mahkumar@nvidia.com>
2025-07-24 10:19:12 +00:00
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
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
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
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