diff options
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5_pas.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index 567120192afe..48b0e9b1af57 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -49,6 +49,8 @@ struct adsp_data { const char *ssr_name; const char *sysmon_name; int ssctl_id; + + int region_assign_idx; }; struct qcom_adsp { @@ -86,10 +88,15 @@ struct qcom_adsp { phys_addr_t dtb_mem_phys; phys_addr_t mem_reloc; phys_addr_t dtb_mem_reloc; + phys_addr_t region_assign_phys; void *mem_region; void *dtb_mem_region; size_t mem_size; size_t dtb_mem_size; + size_t region_assign_size; + + int region_assign_idx; + int region_assign_perms; struct qcom_rproc_glink glink_subdev; struct qcom_rproc_subdev smd_subdev; @@ -561,6 +568,64 @@ static int adsp_alloc_memory_region(struct qcom_adsp *adsp) return 0; } +static int adsp_assign_memory_region(struct qcom_adsp *adsp) +{ + struct qcom_scm_vmperm perm; + struct device_node *node; + struct resource r; + int ret; + + if (!adsp->region_assign_idx) + return 0; + + node = of_parse_phandle(adsp->dev->of_node, "memory-region", adsp->region_assign_idx); + if (!node) { + dev_err(adsp->dev, "missing shareable memory-region\n"); + return -EINVAL; + } + + ret = of_address_to_resource(node, 0, &r); + if (ret) + return ret; + + perm.vmid = QCOM_SCM_VMID_MSS_MSA; + perm.perm = QCOM_SCM_PERM_RW; + + adsp->region_assign_phys = r.start; + adsp->region_assign_size = resource_size(&r); + adsp->region_assign_perms = BIT(QCOM_SCM_VMID_HLOS); + + ret = qcom_scm_assign_mem(adsp->region_assign_phys, + adsp->region_assign_size, + &adsp->region_assign_perms, + &perm, 1); + if (ret < 0) { + dev_err(adsp->dev, "assign memory failed\n"); + return ret; + } + + return 0; +} + +static void adsp_unassign_memory_region(struct qcom_adsp *adsp) +{ + struct qcom_scm_vmperm perm; + int ret; + + if (!adsp->region_assign_idx) + return; + + perm.vmid = QCOM_SCM_VMID_HLOS; + perm.perm = QCOM_SCM_PERM_RW; + + ret = qcom_scm_assign_mem(adsp->region_assign_phys, + adsp->region_assign_size, + &adsp->region_assign_perms, + &perm, 1); + if (ret < 0) + dev_err(adsp->dev, "unassign memory failed\n"); +} + static int adsp_probe(struct platform_device *pdev) { const struct adsp_data *desc; @@ -612,6 +677,7 @@ static int adsp_probe(struct platform_device *pdev) adsp->has_aggre2_clk = desc->has_aggre2_clk; adsp->info_name = desc->sysmon_name; adsp->decrypt_shutdown = desc->decrypt_shutdown; + adsp->region_assign_idx = desc->region_assign_idx; if (dtb_fw_name) { adsp->dtb_firmware_name = dtb_fw_name; adsp->dtb_pas_id = desc->dtb_pas_id; @@ -626,6 +692,10 @@ static int adsp_probe(struct platform_device *pdev) if (ret) goto free_rproc; + ret = adsp_assign_memory_region(adsp); + if (ret) + goto free_rproc; + ret = adsp_init_clock(adsp); if (ret) goto free_rproc; @@ -678,6 +748,7 @@ static int adsp_remove(struct platform_device *pdev) rproc_del(adsp->rproc); qcom_q6v5_deinit(&adsp->q6v5); + adsp_unassign_memory_region(adsp); qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev); qcom_remove_sysmon_subdev(adsp->sysmon); qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev); |