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Tue, 23 Jan 2024 00:51:11 -0800 (PST) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id m35-20020a05600c3b2300b0040e541ddcb1sm41847342wms.33.2024.01.23.00.51.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jan 2024 00:51:11 -0800 (PST) From: Neil Armstrong Date: Tue, 23 Jan 2024 09:51:03 +0100 Subject: [PATCH v7 2/4] remoteproc: qcom: pas: make region assign more generic Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240123-topic-sm8650-upstream-remoteproc-v7-2-61283f50162f@linaro.org> References: <20240123-topic-sm8650-upstream-remoteproc-v7-0-61283f50162f@linaro.org> In-Reply-To: <20240123-topic-sm8650-upstream-remoteproc-v7-0-61283f50162f@linaro.org> To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Manivannan Sadhasivam Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong , Mukesh Ojha X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; 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a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE The current memory region assign only supports a single memory region. But new platforms introduces more regions to make the memory requirements more flexible for various use cases. Those new platforms also shares the memory region between the DSP and HLOS. To handle this, make the region assign more generic in order to support more than a single memory region and also permit setting the regions permissions as shared. Reviewed-by: Mukesh Ojha Signed-off-by: Neil Armstrong --- drivers/remoteproc/qcom_q6v5_pas.c | 100 ++++++++++++++++++++++++------------- 1 file changed, 66 insertions(+), 34 deletions(-) diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index a9dd58608052..09e8ad9f08c4 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -33,6 +33,8 @@ #define ADSP_DECRYPT_SHUTDOWN_DELAY_MS 100 +#define MAX_ASSIGN_COUNT 3 + struct adsp_data { int crash_reason_smem; const char *firmware_name; @@ -51,6 +53,9 @@ struct adsp_data { int ssctl_id; int region_assign_idx; + int region_assign_count; + bool region_assign_shared; + int region_assign_vmid; }; struct qcom_adsp { @@ -87,15 +92,18 @@ 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; + phys_addr_t region_assign_phys[MAX_ASSIGN_COUNT]; void *mem_region; void *dtb_mem_region; size_t mem_size; size_t dtb_mem_size; - size_t region_assign_size; + size_t region_assign_size[MAX_ASSIGN_COUNT]; int region_assign_idx; - u64 region_assign_perms; + int region_assign_count; + bool region_assign_shared; + int region_assign_vmid; + u64 region_assign_owners[MAX_ASSIGN_COUNT]; struct qcom_rproc_glink glink_subdev; struct qcom_rproc_subdev smd_subdev; @@ -590,37 +598,53 @@ static int adsp_alloc_memory_region(struct qcom_adsp *adsp) static int adsp_assign_memory_region(struct qcom_adsp *adsp) { - struct reserved_mem *rmem = NULL; - struct qcom_scm_vmperm perm; + struct qcom_scm_vmperm perm[MAX_ASSIGN_COUNT]; struct device_node *node; + unsigned int perm_size; + int offset; 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) - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { - dev_err(adsp->dev, "unable to resolve shareable memory-region\n"); - return -EINVAL; - } + for (offset = 0; offset < adsp->region_assign_count; ++offset) { + struct reserved_mem *rmem = NULL; + + node = of_parse_phandle(adsp->dev->of_node, "memory-region", + adsp->region_assign_idx + offset); + if (node) + rmem = of_reserved_mem_lookup(node); + of_node_put(node); + if (!rmem) { + dev_err(adsp->dev, "unable to resolve shareable memory-region index %d\n", + offset); + return -EINVAL; + } - perm.vmid = QCOM_SCM_VMID_MSS_MSA; - perm.perm = QCOM_SCM_PERM_RW; + if (adsp->region_assign_shared) { + perm[0].vmid = QCOM_SCM_VMID_HLOS; + perm[0].perm = QCOM_SCM_PERM_RW; + perm[1].vmid = adsp->region_assign_vmid; + perm[1].perm = QCOM_SCM_PERM_RW; + perm_size = 2; + } else { + perm[0].vmid = adsp->region_assign_vmid; + perm[0].perm = QCOM_SCM_PERM_RW; + perm_size = 1; + } - adsp->region_assign_phys = rmem->base; - adsp->region_assign_size = rmem->size; - adsp->region_assign_perms = BIT(QCOM_SCM_VMID_HLOS); + adsp->region_assign_phys[offset] = rmem->base; + adsp->region_assign_size[offset] = rmem->size; + adsp->region_assign_owners[offset] = 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; + ret = qcom_scm_assign_mem(adsp->region_assign_phys[offset], + adsp->region_assign_size[offset], + &adsp->region_assign_owners[offset], + perm, perm_size); + if (ret < 0) { + dev_err(adsp->dev, "assign memory %d failed\n", offset); + return ret; + } } return 0; @@ -629,20 +653,23 @@ static int adsp_assign_memory_region(struct qcom_adsp *adsp) static void adsp_unassign_memory_region(struct qcom_adsp *adsp) { struct qcom_scm_vmperm perm; + int offset; int ret; - if (!adsp->region_assign_idx) + if (!adsp->region_assign_idx || adsp->region_assign_shared) return; - perm.vmid = QCOM_SCM_VMID_HLOS; - perm.perm = QCOM_SCM_PERM_RW; + for (offset = 0; offset < adsp->region_assign_count; ++offset) { + 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"); + ret = qcom_scm_assign_mem(adsp->region_assign_phys[offset], + adsp->region_assign_size[offset], + &adsp->region_assign_owners[offset], + &perm, 1); + if (ret < 0) + dev_err(adsp->dev, "unassign memory %d failed\n", offset); + } } static int adsp_probe(struct platform_device *pdev) @@ -696,6 +723,9 @@ static int adsp_probe(struct platform_device *pdev) adsp->info_name = desc->sysmon_name; adsp->decrypt_shutdown = desc->decrypt_shutdown; adsp->region_assign_idx = desc->region_assign_idx; + adsp->region_assign_count = min_t(int, MAX_ASSIGN_COUNT, desc->region_assign_count); + adsp->region_assign_vmid = desc->region_assign_vmid; + adsp->region_assign_shared = desc->region_assign_shared; if (dtb_fw_name) { adsp->dtb_firmware_name = dtb_fw_name; adsp->dtb_pas_id = desc->dtb_pas_id; @@ -1163,6 +1193,8 @@ static const struct adsp_data sm8550_mpss_resource = { .sysmon_name = "modem", .ssctl_id = 0x12, .region_assign_idx = 2, + .region_assign_count = 1, + .region_assign_vmid = QCOM_SCM_VMID_MSS_MSA, }; static const struct adsp_data sc7280_wpss_resource = {