]> git.baikalelectronics.ru Git - kernel.git/commitdiff
drm/amdgpu: Guard against write accesses after device removal
authorAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Wed, 12 May 2021 14:26:41 +0000 (10:26 -0400)
committerAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Thu, 20 May 2021 03:50:28 +0000 (23:50 -0400)
This should prevent writing to memory or IO ranges possibly
already allocated for other uses after our device is removed.

v5:
Protect more places wher memcopy_to/form_io takes place
Protect IB submissions

v6: Switch to !drm_dev_enter instead of scoping entire code
with brackets.

v7:
Drop guard of HW ring commands emission protection since they
are in GART and not in MMIO.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-10-andrey.grodzovsky@amd.com
13 files changed:
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

index f20a65017db56e414373de08837044b6b9d1f342..96a09f61883b3dc9a592b4a4de5b600e355485f2 100644 (file)
@@ -71,6 +71,8 @@
 #include <drm/task_barrier.h>
 #include <linux/pm_runtime.h>
 
+#include <drm/drm_drv.h>
+
 MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
 MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
 MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
@@ -281,7 +283,10 @@ void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
        unsigned long flags;
        uint32_t hi = ~0;
        uint64_t last;
+       int idx;
 
+       if (!drm_dev_enter(&adev->ddev, &idx))
+               return;
 
 #ifdef CONFIG_64BIT
        last = min(pos + size, adev->gmc.visible_vram_size);
@@ -300,7 +305,7 @@ void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
                }
 
                if (count == size)
-                       return;
+                       goto exit;
 
                pos += count;
                buf += count / 4;
@@ -323,6 +328,9 @@ void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
                        *buf++ = RREG32_NO_KIQ(mmMM_DATA);
        }
        spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
+
+exit:
+       drm_dev_exit(idx);
 }
 
 /*
index c39ed9eb0987dfde3c035b7085531c79b44837cf..90764694fedf4b966b63f0d54a92ef0dd0712b9d 100644 (file)
@@ -31,6 +31,8 @@
 #include "amdgpu_ras.h"
 #include "amdgpu_xgmi.h"
 
+#include <drm/drm_drv.h>
+
 /**
  * amdgpu_gmc_pdb0_alloc - allocate vram for pdb0
  *
@@ -151,6 +153,10 @@ int amdgpu_gmc_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
 {
        void __iomem *ptr = (void *)cpu_pt_addr;
        uint64_t value;
+       int idx;
+
+       if (!drm_dev_enter(&adev->ddev, &idx))
+               return 0;
 
        /*
         * The following is for PTE only. GART does not have PDEs.
@@ -158,6 +164,9 @@ int amdgpu_gmc_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
        value = addr & 0x0000FFFFFFFFF000ULL;
        value |= flags;
        writeq(value, ptr + (gpu_page_idx * 8));
+
+       drm_dev_exit(idx);
+
        return 0;
 }
 
index a09483beb9685042914cca661f85b8ca12948bcd..baa7d9778583963e793ea3dea153bc20d7e58864 100644 (file)
@@ -25,6 +25,7 @@
 
 #include <linux/firmware.h>
 #include <linux/dma-mapping.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_psp.h"
@@ -39,6 +40,8 @@
 #include "amdgpu_ras.h"
 #include "amdgpu_securedisplay.h"
 
+#include <drm/drm_drv.h>
+
 static int psp_sysfs_init(struct amdgpu_device *adev);
 static void psp_sysfs_fini(struct amdgpu_device *adev);
 
@@ -253,7 +256,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
                   struct psp_gfx_cmd_resp *cmd, uint64_t fence_mc_addr)
 {
        int ret;
-       int index;
+       int index, idx;
        int timeout = 20000;
        bool ras_intr = false;
        bool skip_unsupport = false;
@@ -261,6 +264,9 @@ psp_cmd_submit_buf(struct psp_context *psp,
        if (psp->adev->in_pci_err_recovery)
                return 0;
 
+       if (!drm_dev_enter(&psp->adev->ddev, &idx))
+               return 0;
+
        mutex_lock(&psp->mutex);
 
        memset(psp->cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE);
@@ -271,8 +277,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
        ret = psp_ring_cmd_submit(psp, psp->cmd_buf_mc_addr, fence_mc_addr, index);
        if (ret) {
                atomic_dec(&psp->fence_value);
-               mutex_unlock(&psp->mutex);
-               return ret;
+               goto exit;
        }
 
        amdgpu_asic_invalidate_hdp(psp->adev, NULL);
@@ -312,8 +317,8 @@ psp_cmd_submit_buf(struct psp_context *psp,
                         psp->cmd_buf_mem->cmd_id,
                         psp->cmd_buf_mem->resp.status);
                if (!timeout) {
-                       mutex_unlock(&psp->mutex);
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto exit;
                }
        }
 
@@ -321,8 +326,10 @@ psp_cmd_submit_buf(struct psp_context *psp,
                ucode->tmr_mc_addr_lo = psp->cmd_buf_mem->resp.fw_addr_lo;
                ucode->tmr_mc_addr_hi = psp->cmd_buf_mem->resp.fw_addr_hi;
        }
-       mutex_unlock(&psp->mutex);
 
+exit:
+       mutex_unlock(&psp->mutex);
+       drm_dev_exit(idx);
        return ret;
 }
 
@@ -366,8 +373,7 @@ static int psp_load_toc(struct psp_context *psp,
        if (!cmd)
                return -ENOMEM;
        /* Copy toc to psp firmware private buffer */
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->toc_start_addr, psp->toc_bin_size);
+       psp_copy_fw(psp, psp->toc_start_addr, psp->toc_bin_size);
 
        psp_prep_load_toc_cmd_buf(cmd, psp->fw_pri_mc_addr, psp->toc_bin_size);
 
@@ -621,8 +627,7 @@ static int psp_asd_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->asd_start_addr, psp->asd_ucode_size);
+       psp_copy_fw(psp, psp->asd_start_addr, psp->asd_ucode_size);
 
        psp_prep_asd_load_cmd_buf(cmd, psp->fw_pri_mc_addr,
                                  psp->asd_ucode_size);
@@ -777,8 +782,7 @@ static int psp_xgmi_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->ta_xgmi_start_addr, psp->ta_xgmi_ucode_size);
+       psp_copy_fw(psp, psp->ta_xgmi_start_addr, psp->ta_xgmi_ucode_size);
 
        psp_prep_ta_load_cmd_buf(cmd,
                                 psp->fw_pri_mc_addr,
@@ -1034,8 +1038,7 @@ static int psp_ras_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->ta_ras_start_addr, psp->ta_ras_ucode_size);
+       psp_copy_fw(psp, psp->ta_ras_start_addr, psp->ta_ras_ucode_size);
 
        psp_prep_ta_load_cmd_buf(cmd,
                                 psp->fw_pri_mc_addr,
@@ -1271,9 +1274,8 @@ static int psp_hdcp_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->ta_hdcp_start_addr,
-              psp->ta_hdcp_ucode_size);
+       psp_copy_fw(psp, psp->ta_hdcp_start_addr,
+                   psp->ta_hdcp_ucode_size);
 
        psp_prep_ta_load_cmd_buf(cmd,
                                 psp->fw_pri_mc_addr,
@@ -1423,8 +1425,7 @@ static int psp_dtm_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->ta_dtm_start_addr, psp->ta_dtm_ucode_size);
+       psp_copy_fw(psp, psp->ta_dtm_start_addr, psp->ta_dtm_ucode_size);
 
        psp_prep_ta_load_cmd_buf(cmd,
                                 psp->fw_pri_mc_addr,
@@ -1569,8 +1570,7 @@ static int psp_rap_load(struct psp_context *psp)
        if (!cmd)
                return -ENOMEM;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-       memcpy(psp->fw_pri_buf, psp->ta_rap_start_addr, psp->ta_rap_ucode_size);
+       psp_copy_fw(psp, psp->ta_rap_start_addr, psp->ta_rap_ucode_size);
 
        psp_prep_ta_load_cmd_buf(cmd,
                                 psp->fw_pri_mc_addr,
@@ -3018,7 +3018,7 @@ static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev,
        struct amdgpu_device *adev = drm_to_adev(ddev);
        void *cpu_addr;
        dma_addr_t dma_addr;
-       int ret;
+       int ret, idx;
        char fw_name[100];
        const struct firmware *usbc_pd_fw;
 
@@ -3027,6 +3027,9 @@ static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev,
                return -EBUSY;
        }
 
+       if (!drm_dev_enter(ddev, &idx))
+               return -ENODEV;
+
        snprintf(fw_name, sizeof(fw_name), "amdgpu/%s", buf);
        ret = request_firmware(&usbc_pd_fw, fw_name, adev->dev);
        if (ret)
@@ -3058,16 +3061,29 @@ static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev,
 rel_buf:
        dma_free_coherent(adev->dev, usbc_pd_fw->size, cpu_addr, dma_addr);
        release_firmware(usbc_pd_fw);
-
 fail:
        if (ret) {
                DRM_ERROR("Failed to load USBC PD FW, err = %d", ret);
-               return ret;
+               count = ret;
        }
 
+       drm_dev_exit(idx);
        return count;
 }
 
+void psp_copy_fw(struct psp_context *psp, uint8_t *start_addr, uint32_t bin_size)
+{
+       int idx;
+
+       if (!drm_dev_enter(&psp->adev->ddev, &idx))
+               return;
+
+       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
+       memcpy(psp->fw_pri_buf, start_addr, bin_size);
+
+       drm_dev_exit(idx);
+}
+
 static DEVICE_ATTR(usbc_pd_fw, S_IRUGO | S_IWUSR,
                   psp_usbc_pd_fw_sysfs_read,
                   psp_usbc_pd_fw_sysfs_write);
index 46a5328e00e0bbcf949527f593a297da2d88bd73..2bfdc278817f9feb596250cf62d4f02a8906c0ab 100644 (file)
@@ -423,4 +423,6 @@ int psp_get_fw_attestation_records_addr(struct psp_context *psp,
 
 int psp_load_fw_list(struct psp_context *psp,
                     struct amdgpu_firmware_info **ucode_list, int ucode_count);
+void psp_copy_fw(struct psp_context *psp, uint8_t *start_addr, uint32_t bin_size);
+
 #endif
index c6dbc08016045d3216fad0eebbf6b7435786e968..82f0542c7792062052abae9bfc91b525d6516a77 100644 (file)
@@ -32,6 +32,7 @@
 #include <linux/module.h>
 
 #include <drm/drm.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_pm.h"
@@ -375,7 +376,7 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 {
        unsigned size;
        void *ptr;
-       int i, j;
+       int i, j, idx;
        bool in_ras_intr = amdgpu_ras_intr_triggered();
 
        cancel_delayed_work_sync(&adev->uvd.idle_work);
@@ -403,11 +404,15 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
                if (!adev->uvd.inst[j].saved_bo)
                        return -ENOMEM;
 
-               /* re-write 0 since err_event_athub will corrupt VCPU buffer */
-               if (in_ras_intr)
-                       memset(adev->uvd.inst[j].saved_bo, 0, size);
-               else
-                       memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size);
+               if (drm_dev_enter(&adev->ddev, &idx)) {
+                       /* re-write 0 since err_event_athub will corrupt VCPU buffer */
+                       if (in_ras_intr)
+                               memset(adev->uvd.inst[j].saved_bo, 0, size);
+                       else
+                               memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size);
+
+                       drm_dev_exit(idx);
+               }
        }
 
        if (in_ras_intr)
@@ -420,7 +425,7 @@ int amdgpu_uvd_resume(struct amdgpu_device *adev)
 {
        unsigned size;
        void *ptr;
-       int i;
+       int i, idx;
 
        for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
                if (adev->uvd.harvest_config & (1 << i))
@@ -432,7 +437,10 @@ int amdgpu_uvd_resume(struct amdgpu_device *adev)
                ptr = adev->uvd.inst[i].cpu_addr;
 
                if (adev->uvd.inst[i].saved_bo != NULL) {
-                       memcpy_toio(ptr, adev->uvd.inst[i].saved_bo, size);
+                       if (drm_dev_enter(&adev->ddev, &idx)) {
+                               memcpy_toio(ptr, adev->uvd.inst[i].saved_bo, size);
+                               drm_dev_exit(idx);
+                       }
                        kvfree(adev->uvd.inst[i].saved_bo);
                        adev->uvd.inst[i].saved_bo = NULL;
                } else {
@@ -442,8 +450,11 @@ int amdgpu_uvd_resume(struct amdgpu_device *adev)
                        hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
                        if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
                                offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
-                               memcpy_toio(adev->uvd.inst[i].cpu_addr, adev->uvd.fw->data + offset,
-                                           le32_to_cpu(hdr->ucode_size_bytes));
+                               if (drm_dev_enter(&adev->ddev, &idx)) {
+                                       memcpy_toio(adev->uvd.inst[i].cpu_addr, adev->uvd.fw->data + offset,
+                                                   le32_to_cpu(hdr->ucode_size_bytes));
+                                       drm_dev_exit(idx);
+                               }
                                size -= le32_to_cpu(hdr->ucode_size_bytes);
                                ptr += le32_to_cpu(hdr->ucode_size_bytes);
                        }
index ea6a62f67e3809cc5041bbaa9bb8f889ec3e7bbf..833203401ef48aa8e919eca4eb85c44ad105c5cf 100644 (file)
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 
 #include <drm/drm.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_pm.h"
@@ -293,7 +294,7 @@ int amdgpu_vce_resume(struct amdgpu_device *adev)
        void *cpu_addr;
        const struct common_firmware_header *hdr;
        unsigned offset;
-       int r;
+       int r, idx;
 
        if (adev->vce.vcpu_bo == NULL)
                return -EINVAL;
@@ -313,8 +314,12 @@ int amdgpu_vce_resume(struct amdgpu_device *adev)
 
        hdr = (const struct common_firmware_header *)adev->vce.fw->data;
        offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
-       memcpy_toio(cpu_addr, adev->vce.fw->data + offset,
-                   adev->vce.fw->size - offset);
+
+       if (drm_dev_enter(&adev->ddev, &idx)) {
+               memcpy_toio(cpu_addr, adev->vce.fw->data + offset,
+                           adev->vce.fw->size - offset);
+               drm_dev_exit(idx);
+       }
 
        amdgpu_bo_kunmap(adev->vce.vcpu_bo);
 
index 201645963ba519a6c0d96a41fb4fd64cff0089cc..21f7d3644d704e157d6b6cfbcc0602ae4629d0a3 100644 (file)
@@ -27,6 +27,7 @@
 #include <linux/firmware.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_pm.h"
@@ -275,7 +276,7 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev)
 {
        unsigned size;
        void *ptr;
-       int i;
+       int i, idx;
 
        cancel_delayed_work_sync(&adev->vcn.idle_work);
 
@@ -292,7 +293,10 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev)
                if (!adev->vcn.inst[i].saved_bo)
                        return -ENOMEM;
 
-               memcpy_fromio(adev->vcn.inst[i].saved_bo, ptr, size);
+               if (drm_dev_enter(&adev->ddev, &idx)) {
+                       memcpy_fromio(adev->vcn.inst[i].saved_bo, ptr, size);
+                       drm_dev_exit(idx);
+               }
        }
        return 0;
 }
@@ -301,7 +305,7 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
 {
        unsigned size;
        void *ptr;
-       int i;
+       int i, idx;
 
        for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
                if (adev->vcn.harvest_config & (1 << i))
@@ -313,7 +317,10 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
                ptr = adev->vcn.inst[i].cpu_addr;
 
                if (adev->vcn.inst[i].saved_bo != NULL) {
-                       memcpy_toio(ptr, adev->vcn.inst[i].saved_bo, size);
+                       if (drm_dev_enter(&adev->ddev, &idx)) {
+                               memcpy_toio(ptr, adev->vcn.inst[i].saved_bo, size);
+                               drm_dev_exit(idx);
+                       }
                        kvfree(adev->vcn.inst[i].saved_bo);
                        adev->vcn.inst[i].saved_bo = NULL;
                } else {
@@ -323,8 +330,11 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
                        hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
                        if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
                                offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
-                               memcpy_toio(adev->vcn.inst[i].cpu_addr, adev->vcn.fw->data + offset,
-                                           le32_to_cpu(hdr->ucode_size_bytes));
+                               if (drm_dev_enter(&adev->ddev, &idx)) {
+                                       memcpy_toio(adev->vcn.inst[i].cpu_addr, adev->vcn.fw->data + offset,
+                                                   le32_to_cpu(hdr->ucode_size_bytes));
+                                       drm_dev_exit(idx);
+                               }
                                size -= le32_to_cpu(hdr->ucode_size_bytes);
                                ptr += le32_to_cpu(hdr->ucode_size_bytes);
                        }
index 4a3e3f72e12774bfd7ec951d5a17d2d6d7b50918..90c34491f85d8f8b8bbb23426d36589e41bb0e0b 100644 (file)
@@ -32,6 +32,7 @@
 #include <linux/dma-buf.h>
 
 #include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
 #include "amdgpu_amdkfd.h"
@@ -1606,7 +1607,10 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
        struct amdgpu_vm_update_params params;
        enum amdgpu_sync_mode sync_mode;
        uint64_t pfn;
-       int r;
+       int r, idx;
+
+       if (!drm_dev_enter(&adev->ddev, &idx))
+               return -ENODEV;
 
        memset(&params, 0, sizeof(params));
        params.adev = adev;
@@ -1715,6 +1719,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 
 error_unlock:
        amdgpu_vm_eviction_unlock(vm);
+       drm_dev_exit(idx);
        return r;
 }
 
index 589410c32d095a47e3f5993d4e468622c8305e9a..2cec71e823f552795e9bb38cece9681f9a8ffbd6 100644 (file)
@@ -23,6 +23,7 @@
 #include <linux/firmware.h>
 #include <linux/module.h>
 #include <linux/vmalloc.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_psp.h"
@@ -269,10 +270,8 @@ static int psp_v11_0_bootloader_load_kdb(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy PSP KDB binary to memory */
-       memcpy(psp->fw_pri_buf, psp->kdb_start_addr, psp->kdb_bin_size);
+       psp_copy_fw(psp, psp->kdb_start_addr, psp->kdb_bin_size);
 
        /* Provide the PSP KDB to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -302,10 +301,8 @@ static int psp_v11_0_bootloader_load_spl(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy PSP SPL binary to memory */
-       memcpy(psp->fw_pri_buf, psp->spl_start_addr, psp->spl_bin_size);
+       psp_copy_fw(psp, psp->spl_start_addr, psp->spl_bin_size);
 
        /* Provide the PSP SPL to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -335,10 +332,8 @@ static int psp_v11_0_bootloader_load_sysdrv(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy PSP System Driver binary to memory */
-       memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size);
+       psp_copy_fw(psp, psp->sys_start_addr, psp->sys_bin_size);
 
        /* Provide the sys driver to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -371,10 +366,8 @@ static int psp_v11_0_bootloader_load_sos(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy Secure OS binary to PSP memory */
-       memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size);
+       psp_copy_fw(psp, psp->sos_start_addr, psp->sos_bin_size);
 
        /* Provide the PSP secure OS to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -608,7 +601,7 @@ static int psp_v11_0_memory_training(struct psp_context *psp, uint32_t ops)
        uint32_t p2c_header[4];
        uint32_t sz;
        void *buf;
-       int ret;
+       int ret, idx;
 
        if (ctx->init == PSP_MEM_TRAIN_NOT_SUPPORT) {
                DRM_DEBUG("Memory training is not supported.\n");
@@ -681,17 +674,24 @@ static int psp_v11_0_memory_training(struct psp_context *psp, uint32_t ops)
                        return -ENOMEM;
                }
 
-               memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
-               ret = psp_v11_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
-               if (ret) {
-                       DRM_ERROR("Send long training msg failed.\n");
+               if (drm_dev_enter(&adev->ddev, &idx)) {
+                       memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
+                       ret = psp_v11_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
+                       if (ret) {
+                               DRM_ERROR("Send long training msg failed.\n");
+                               vfree(buf);
+                               drm_dev_exit(idx);
+                               return ret;
+                       }
+
+                       memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
+                       adev->hdp.funcs->flush_hdp(adev, NULL);
                        vfree(buf);
-                       return ret;
+                       drm_dev_exit(idx);
+               } else {
+                       vfree(buf);
+                       return -ENODEV;
                }
-
-               memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
-               adev->hdp.funcs->flush_hdp(adev, NULL);
-               vfree(buf);
        }
 
        if (ops & PSP_MEM_TRAIN_SAVE) {
index c4828bd3264bcfe6c5cc208e7bcb6b0587dd4240..618e5b6b85d99df005f01a79d2925eefb65aa7b8 100644 (file)
@@ -138,10 +138,8 @@ static int psp_v12_0_bootloader_load_sysdrv(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy PSP System Driver binary to memory */
-       memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size);
+       psp_copy_fw(psp, psp->sys_start_addr, psp->sys_bin_size);
 
        /* Provide the sys driver to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -179,10 +177,8 @@ static int psp_v12_0_bootloader_load_sos(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy Secure OS binary to PSP memory */
-       memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size);
+       psp_copy_fw(psp, psp->sos_start_addr, psp->sos_bin_size);
 
        /* Provide the PSP secure OS to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
index f2e725f72d2f1644e1a786084df6782c4fe9aad3..d0a6cccd08974b4443992deb57e883637c4fb221 100644 (file)
@@ -102,10 +102,8 @@ static int psp_v3_1_bootloader_load_sysdrv(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy PSP System Driver binary to memory */
-       memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size);
+       psp_copy_fw(psp, psp->sys_start_addr, psp->sys_bin_size);
 
        /* Provide the sys driver to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
@@ -143,10 +141,8 @@ static int psp_v3_1_bootloader_load_sos(struct psp_context *psp)
        if (ret)
                return ret;
 
-       memset(psp->fw_pri_buf, 0, PSP_1_MEG);
-
        /* Copy Secure OS binary to PSP memory */
-       memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size);
+       psp_copy_fw(psp, psp->sos_start_addr, psp->sos_bin_size);
 
        /* Provide the PSP secure OS to bootloader */
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
index 8e238dea7bef1976747537ada6877bc3611162fd..90910d19db122f32c40c1dd18dbcbc29bc672afc 100644 (file)
@@ -25,6 +25,7 @@
  */
 
 #include <linux/firmware.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_vce.h"
@@ -555,16 +556,19 @@ static int vce_v4_0_hw_fini(void *handle)
 static int vce_v4_0_suspend(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-       int r;
+       int r, idx;
 
        if (adev->vce.vcpu_bo == NULL)
                return 0;
 
-       if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
-               unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
-               void *ptr = adev->vce.cpu_addr;
+       if (drm_dev_enter(&adev->ddev, &idx)) {
+               if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+                       unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
+                       void *ptr = adev->vce.cpu_addr;
 
-               memcpy_fromio(adev->vce.saved_bo, ptr, size);
+                       memcpy_fromio(adev->vce.saved_bo, ptr, size);
+               }
+               drm_dev_exit(idx);
        }
 
        r = vce_v4_0_hw_fini(adev);
@@ -577,16 +581,20 @@ static int vce_v4_0_suspend(void *handle)
 static int vce_v4_0_resume(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-       int r;
+       int r, idx;
 
        if (adev->vce.vcpu_bo == NULL)
                return -EINVAL;
 
        if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
-               unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
-               void *ptr = adev->vce.cpu_addr;
 
-               memcpy_toio(ptr, adev->vce.saved_bo, size);
+               if (drm_dev_enter(&adev->ddev, &idx)) {
+                       unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
+                       void *ptr = adev->vce.cpu_addr;
+
+                       memcpy_toio(ptr, adev->vce.saved_bo, size);
+                       drm_dev_exit(idx);
+               }
        } else {
                r = amdgpu_vce_resume(adev);
                if (r)
index cf165ab5dd26de0ad9809f990dbcfc25fad319aa..ec28ba85c4359895868f1d631de3cf1401f1f0f9 100644 (file)
@@ -34,6 +34,8 @@
 #include "vcn/vcn_3_0_0_sh_mask.h"
 #include "ivsrcid/vcn/irqsrcs_vcn_2_0.h"
 
+#include <drm/drm_drv.h>
+
 #define mmUVD_CONTEXT_ID_INTERNAL_OFFSET                       0x27
 #define mmUVD_GPCOM_VCPU_CMD_INTERNAL_OFFSET                   0x0f
 #define mmUVD_GPCOM_VCPU_DATA0_INTERNAL_OFFSET                 0x10
@@ -268,16 +270,20 @@ static int vcn_v3_0_sw_init(void *handle)
 static int vcn_v3_0_sw_fini(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-       int i, r;
+       int i, r, idx;
 
-       for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
-               volatile struct amdgpu_fw_shared *fw_shared;
+       if (drm_dev_enter(&adev->ddev, &idx)) {
+               for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
+                       volatile struct amdgpu_fw_shared *fw_shared;
 
-               if (adev->vcn.harvest_config & (1 << i))
-                       continue;
-               fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
-               fw_shared->present_flag_0 = 0;
-               fw_shared->sw_ring.is_enabled = false;
+                       if (adev->vcn.harvest_config & (1 << i))
+                               continue;
+                       fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
+                       fw_shared->present_flag_0 = 0;
+                       fw_shared->sw_ring.is_enabled = false;
+               }
+
+               drm_dev_exit(idx);
        }
 
        if (amdgpu_sriov_vf(adev))