Currently on TOT, stream buffer map functions results in kernel crash.
The kernel crash is an effect of incorrect conditions in the mapping
function. Fix the code logic to use correct kernel version conditions to
use appropriate DMA buffer structures.
Bug 3893741
Change-Id: I3888ec01fdb2025f6d9c3a22296ca9d1abbcadb0
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
(cherry picked from commit 5a3476cfb6574eb5ace29801a4f428ce9d694ce9)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2853211
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Upstream Linux kernel commit ff62b8e6588f ("driver core: make struct
class.devnode() take a const *") updated the 'devnode' function pointer
under the class structure to take a const device struct. This breaks
building the Tegra HWPM driver with Linux v6.2. Make the necessary
changes to the HWPM driver to fix the build breakage.
Bug 3936429
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Change-Id: I54b7bcefbd5a2e6e88c13b3714ea012cc2a73615
(cherry picked from commit de9dd40f6a4dc35e6ee9e6140cac148171bcd6e1)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2847008
Tested-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Kernel version beyond 5.10 introduces dma_buf_map structure (called
iosys_map in later versions). Kernel virtual address corresponding to a
dma_buf is stored in the dma_buf_map structure.
- This patch updates memory management function to use correct mem bytes
buffer kernel virtual address stored in the corresponding dma_buf_map
structure.
- Use dma_buf_map structure pointer to unmap kernel virtual address.
- During release, poll mem bytes buffer with finite timeout value.
- Add description for use of dma_set_mask_and_coherent.
Bug 3893741
Change-Id: I42ace2fe70b36d7d5d1a4c5fee21786826f24a07
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
(cherry picked from commit ce852be6b39ef39affccdee41ad436fc70bf86b5)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2847007
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Property support-soc-tools was added mainly to provide user's control to
enable/disable HWPM feature. Since, the same functionality can be
achieved using "status" in device node, support-soc-tools property is
redundant. Hence, this property is removed from HWPM device node.
Update HWPM driver probe to not depend on support-soc-tools property.
JIRA THWPM-48
Change-Id: Ieaa5c77e6c62a59e938832f886c5a82031139ac6
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797449
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
Add Device_index tag to read IP perfmon register address
index from ACPI or DTSI tables. Device_index will be
used to retrieve resource information from acpi tables
or device trees. This will replace current logic to
procure resource details using device names.
JIRA THWPM-71
Change-Id: I964546f2262dd77ec0acfb58f49d044c870deae6
Signed-off-by: vasukis <vasukis@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797448
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Tested-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
Currently, dt_index aperture spec actually holds the element index of
the aperture within the IP instance. Hence, replace dt_index with
element_index to better indicate its purpose.
JIRA THWPM-71
Change-Id: Ic805da3281c60991e7966a80f442d84a2cfcf7cc
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797447
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
- Make clock reset functions into HALs. This way we can control
clock-reset logic for any chip. Set clock-reset HAL pointers to
appropriate functions.
- Remove clock-reset function wrappers as these will not be required and
corresponding HAL pointers will be used.
- As clock reset init is defined as a HAL, modify probe logic to
initialize chip info before invoking any HALs.
- Move common/primary HAL validation logic to common code and implement
new HAL to validate chip specific HALs. This way we can ensure that HAL
pointers are set as expected.
- Keep only one definition for t234_hwpm_init_chip_info as t234 should
always be initialized and hence only single definition should be
available.
- Expected return value of 0 indicates success and any other value
(mostly negative in current logic) indicates error, compare function
returns with 0 to print error in tegra_hwpm_release().
- Since a build can support both ACPI and device tree, update
init_chip_info() to retrieve chip information from ACPI and device tree
in case of failure.
Jira THWPM-41
Bug 3583624
Change-Id: I03fefae0b3b0c8ce46d175d39e4fdbb45e2bb22f
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2789668
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Vasuki Shankar <vasukis@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797445
- Zeroing of PMA trigger registers is unnecessary. Remove corresponding
logic from HWPM teardown function.
- During device open, add a check for PMA/RTR status. This will ensure
that PMA/RTR are ready to start new profiling session. Device open will
fail if RTR and PMA enginestatus is not ready(idle).
- SOC HWPM driver disables and releases all reserved IPs before teardown
steps. Update teardown logic to zero out IP allowlist registers during
teardown.
Jira THWPM-41
Bug 3714516
Change-Id: Iede5a5ed9860e2a73c8e4a04aeedfc061458c793
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2776229
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797444
HWPM files are copied from the previous source in linux-nvidia repo
withgit history. Create folders and move files to obtain expected folder
structure.
Bug 3787076
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
