github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-01 03:59:40 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

remoteproc: qcom_q6v5_pas: Add support to setup mpss dsm mem region

Browse Source 
MPSS DSM mem region is needed by Modem PDs. This change
sets it up before bringing MPSS out of reset.

Change-Id: Ic882b678f373deb5c61e250f8620b5dd4c092ee2
Signed-off-by: Satya Durga Srinivasu Prabhala <quic_satyap@quicinc.com>
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
This commit is contained in:
Gokul krishna Krishnakumar 2022-07-18 16:22:14 -07:00
parent f852a8b67d
commit f5e30fb6c7
1 changed files with 45 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/remoteproc/qcom_q6v5_pas.c
View File

@ -29,6 +29,7 @@
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>
#include <linux/soc/qcom/qcom_aoss.h>
#include <soc/qcom/secure_buffer.h>
#define CREATE_TRACE_POINTS
#include <trace/events/rproc_qcom.h>
@ -49,6 +50,7 @@ static struct icc_path *scm_perf_client;
static int scm_pas_bw_count;
static DEFINE_MUTEX(scm_pas_bw_mutex);
bool timeout_disabled;
static bool mpss_dsm_mem_setup;
struct adsp_data {
int crash_reason_smem;
@ -952,6 +954,41 @@ static int adsp_setup_32b_dma_allocs(struct qcom_adsp *adsp)
return ret;
}
static int setup_mpss_dsm_mem(struct platform_device *pdev)
{
struct device_node *node;
struct resource res;
int hlosvm[1] = {VMID_HLOS};
int mssvm[1] = {VMID_MSS_MSA};
int vmperm[1] = {PERM_READ | PERM_WRITE};
phys_addr_t mem_phys;
u64 mem_size;
int ret;
node = of_parse_phandle(pdev->dev.of_node, "mpss_dsm_mem_reg", 0);
if (!node) {
dev_err(&pdev->dev, "mpss dsm mem region is missing\n");
return -EINVAL;
}
ret = of_address_to_resource(node, 0, &res);
if (ret) {
dev_err(&pdev->dev, "address to resource failed for mpss dsm mem\n");
return ret;
}
mem_phys = res.start;
mem_size = resource_size(&res);
ret = hyp_assign_phys(mem_phys, mem_size, hlosvm, 1, mssvm, vmperm, 1);
if (ret) {
dev_err(&pdev->dev, "hyp assign for mpss dsm mem failed\n");
return ret;
}
mpss_dsm_mem_setup = true;
return 0;
}
static int adsp_probe(struct platform_device *pdev)
{
const struct adsp_data *desc;
@ -975,6 +1012,14 @@ static int adsp_probe(struct platform_device *pdev)
if (ret < 0 && ret != -EINVAL)
return ret;
if (!mpss_dsm_mem_setup && !strcmp(fw_name, "modem.mdt")) {
ret = setup_mpss_dsm_mem(pdev);
if (ret) {
dev_err(&pdev->dev, "failed to setup mpss dsm mem\n");
return -EINVAL;
}
}
if (desc->minidump_id)
ops = &adsp_minidump_ops;