HWPM driver uses nested structures and arrays of structures. The IP
structure setup logic allocates pointer arrays based on dynamic list of
IPs and aperture addresses. This dynamic list is required to search
given regops address in less amount of time.
However, there is a chance that the number of pointers computed
dynamically is huge. And huge amount of memory will be required for the
dynamic pointers array, which is impractical.
This, this patch modifies ip structure setup and address to aperture
conversion logic to use static indexes if the pointer array size is
huge.
This patch modifies relevant functions to always use static arrays
to access instance and aperture structures.
If dynamic pointers array is allocated, the patch adds logic to
translate dynamic index to static index using inst_index_mask for
instances and new added aperture_index for element level structures.
Add/update few log message to improve relayed information.
Bug 4707244
Change-Id: Ib4847e6575f82b628a3ce838ad69196a4bc08fed
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/3186843
Reviewed-by: Vasuki Shankar <vasukis@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
- Create tegra_hwpm_element_enable() instead of directly using
perfmon_enable() HAL. This will allow us to expand
tegra_hwpm_element_enable in future.
- Update log messages in ip structure init code and floorsweep info
function.
- It is possible that IP instances and elements to have 0 start range
address. So, modify check for available elements to use range end
instead.
- Use tegra_hwpm_fake_readl() and tegra_hwpm_fake_writel() macros
instead of fake_readl() and fake_write() functions. That way we have
similar implementation of IO functions and macros can be used across
OSes.
- Check that reserve perfmon function is invoked only for HWPM
components. This check will be useful for expansion in types of
components in the future.
- Clean up and rearrange tegra_hwpm_regops_readl_impl() and
tegra_hwpm_regops_writel_impl() to have designated code corresponding to
the element type.
- Currently, device open and release functions are incorrectly using
clock enable/disable functions instead of using HALs. Correct open and
close functions to use lock HALs.
- Currently, tegra_hwpm_update_mem_bytes() doesn't validate mem_mgmt
structure allocation before accessing mem_bytes_kernel pointer. This can
lead to kernel crash. Update tegra_hwpm_update_mem_bytes() to return
error if mem_mgmt structure s not allocated.
Jira THWPM-74
Change-Id: Ia40bd51187e5ea08572dbee81e577dacf5fb66b6
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
(cherry picked from commit 411f07484d68dfde0d350a5c67f2748e876b11b8)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2888553
Reviewed-by: Adeel Raza <araza@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Modify OS agnostic files in common, hal and include folder to use MIT
license. This will allow the files to be shared between different OSes.
Modify OS specific files in os/linux and uapi folders to add SPDX
identifier for GPLv2.
Jira THWPM-69
Change-Id: I4fef142354a46fc23b67616204ccf0712a99caec
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2797453
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
HWPM components (PMA, RTR, perfmon) have MMIO address space and a
corresponding virtual address region. It is possible that both MMIO and
virtual addresses are same for an aperture.
MMIO address of an aperture is used in device node to enable the
aperture and further to map HWPM component in the driver.
Virtual addresses are used by the applications to execute regops on HWPM
apertures. Virtual addresses are also used to fake aperture address
space in simulation.
This patch updates
- HWPM aperture structures to include MMIO address.
- aperture ioremap function to use MMIO address values.
- fake register allocation to use virtual address values.
Jira THWPM-41
Change-Id: I05acb68dcb278722cd333e1187b2355d1d739e93
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
(cherry picked from commit 1c0e8107b4cddad7532c10dddc22bb30cef2540b)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2853213
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@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>
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>
