Files
linux-nv-oot/drivers/platform/tegra/dce/dce-hsp-ss.c
Mahesh Kumar 2d2fc21cec platform: dce: move hw headers to soc folder
This patch moves HW headers to SOC-specific subfolder to avoid conflict.

Jira TDS-15438

Change-Id: I45796dbe445319dd5d71a304732e11c858135345
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3227902
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
2025-07-24 10:19:09 +00:00

143 lines
3.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2019-2024, NVIDIA CORPORATION. All rights reserved.
*/
#include <dce.h>
#include <dce-log.h>
#include <dce-util-common.h>
#include <dce-hsp-t234.h>
#include <hw/t234/hw_hsp_dce.h>
/**
* ss_set_regs is a 2D array of read-only pointers to a function returning u32.
*
* Array of functions that retrun base addresses of shared semaphores set
* registers in DCE cluster based on the semaphore id and HSP id.
*/
static u32 (*const ss_set_regs[DCE_MAX_HSP_T234][DCE_MAX_NO_SS_T234])(void) = {
{
hsp_ss0_set_r,
hsp_ss1_set_r,
hsp_ss2_set_r,
hsp_ss3_set_r,
},
};
/**
* ss_clear_regs is a 2D array of read-only pointers to a function
* returning u32.
*
* Array of functions that retrun base addresses of shared semaphores clear
* registers in DCE cluster based on the semaphore id and HSP id.
*/
static u32 (*const ss_clear_regs[DCE_MAX_HSP_T234][DCE_MAX_NO_SS_T234])(void) = {
{
hsp_ss0_clr_r,
hsp_ss1_clr_r,
hsp_ss2_clr_r,
hsp_ss3_clr_r,
},
};
/**
* ss_state_regs is a 2D array of read-only pointers to a function
* returning u32.
*
* Array of functions that retrun base addresses of shared semaphores state
* registers in DCE cluster based on the semaphore id and HSP id.
*/
static u32 (*const ss_state_regs[DCE_MAX_HSP_T234][DCE_MAX_NO_SS_T234])(void) = {
{
hsp_ss0_state_r,
hsp_ss1_state_r,
hsp_ss2_state_r,
hsp_ss3_state_r,
},
};
/**
* dce_ss_get_state_t234 - Get the state of ss_#n in the DCE Cluster
*
* @d : Pointer to tegra_dce struct.
* @hsp_id : ID of hsp instance used
* @id : Shared Semaphore Id.
*
* Return : u32
*/
u32 dce_ss_get_state_t234(struct tegra_dce *d, u8 hsp_id, u8 id)
{
return dce_readl(d, ss_state_regs[hsp_id][id]());
}
/**
* dce_ss_set_t234 - Set an u32 value to ss_#n in the DCE Cluster
*
* @d : Pointer to tegra_dce struct.
* @bpos : bit to be set.
* @hsp_id : ID of hsp instance used
* @id : Shared Semaphore Id.
*
* Return : Void
*/
void dce_ss_set_t234(struct tegra_dce *d, u8 bpos, u8 hsp_id, u8 id)
{
unsigned long val = 0U;
if (hsp_id >= DCE_MAX_HSP_T234 || id >= DCE_MAX_NO_SS_T234) {
dce_err(d, "Invalid HSP ID:%u OR SS ID:%u", hsp_id, id);
return;
}
val = dce_ss_get_state_t234(d, d->hsp_id, id);
/**
* Debug info. please remove
*/
dce_info(d, "Current Value in SS#%d : %lx", id, val);
/**
* TODO :Use DCE_INSERT here.
*/
dce_bitmap_set(&val, bpos, 1);
/**
* Debug info. please remove
*/
dce_info(d, "Value after bitmap operation : %lx", val);
dce_writel(d, ss_set_regs[hsp_id][id](), (u32)val);
/**
* Debug info. please remove
*/
val = dce_ss_get_state_t234(d, d->hsp_id, id);
dce_info(d, "Current Value in SS#%d : %lx", id, val);
}
/**
* dce_ss_clear_t234 - Clear a bit in ss_#n in the DCE Cluster
*
* @d : Pointer to tegra_dce struct.
* @bpos : bit to be cleared.
* @hsp_id : ID of hsp instance used
* @id : Shared Semaphore Id.
*
* Return : Void
*/
void dce_ss_clear_t234(struct tegra_dce *d, u8 bpos, u8 hsp_id, u8 id)
{
unsigned long val;
if (hsp_id >= DCE_MAX_HSP_T234 || id >= DCE_MAX_NO_SS_T234) {
dce_err(d, "Invalid HSP ID:%u OR SS ID:%u", hsp_id, id);
return;
}
val = dce_ss_get_state_t234(d, d->hsp_id, id);
dce_bitmap_set(&val, bpos, 1);
dce_writel(d, ss_clear_regs[hsp_id][id](), val);
}