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tegra: hwpm: Linux: IOCTL for Credit Programming

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- Add IOCTL infra for Credit programming in Linux based
OSs.

Bug 4571175

Signed-off-by: vasukis <vasukis@nvidia.com>
Change-Id: I1a5ff5aefcf8da6ad85507d71c0a9bd3b7f31f6d
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/3136565
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
This commit is contained in:
vasukis
2024-05-13 19:00:50 +00:00
committed by mobile promotions
parent b5f2672134
commit 5d80b2edb5
4 changed files with 107 additions and 3 deletions
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31
drivers/tegra/hwpm/os/linux/regops_utils.c
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@@ -21,6 +21,7 @@
#include <tegra_hwpm_log.h>
#include <tegra_hwpm_common.h>
#include <tegra_hwpm_static_analysis.h>
#include <os/linux/driver.h>
#include <os/linux/regops_utils.h>
static int tegra_hwpm_exec_reg_ops(struct tegra_soc_hwpm *hwpm,
@@ -228,3 +229,33 @@ int tegra_hwpm_exec_regops(struct tegra_soc_hwpm *hwpm,
return 0;
}
int tegra_hwpm_credit_program(struct tegra_soc_hwpm *hwpm,
struct tegra_soc_hwpm_exec_credit_program *credit_prog)
{
int idx = 0, ret = 0;
struct tegra_soc_hwpm_credits_info *creditInfo = NULL;
tegra_hwpm_fn(hwpm, " ");
/* Check if credit_programming is defined for this chip*/
if (hwpm->active_chip->credit_program == NULL) {
tegra_hwpm_err(hwpm, "Credit programming not defined");
return -EINVAL;
}
for (idx = 0; idx <= credit_prog->num_entries; idx++) {
//Extract the credit_info pointer for a given Credit packet.
//This contains the num_credits param
//which has to be updated in chip specific HALs.
creditInfo = &(credit_prog->credit_info[idx]);
/* Call chip specific credit programming API */
ret = hwpm->active_chip->credit_program(
hwpm, &(creditInfo->num_credits),
creditInfo->cblock_idx, credit_prog->pma_channel_idx,
credit_prog->credit_cmd);
}
return ret;
}