[PATCH v6 10/16] drm/amdgpu: Guard against write accesses after device removal
Andrey Grodzovsky
andrey.grodzovsky at amd.com
Mon May 10 16:36:19 UTC 2021
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.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 9 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 17 +++--
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 63 +++++++++++------
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 70 +++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 49 ++-----------
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 31 +++++---
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 11 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 22 ++++--
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 +-
drivers/gpu/drm/amd/amdgpu/psp_v11_0.c | 44 ++++++------
drivers/gpu/drm/amd/amdgpu/psp_v12_0.c | 8 +--
drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | 8 +--
drivers/gpu/drm/amd/amdgpu/vce_v4_0.c | 26 ++++---
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 22 +++---
.../drm/amd/pm/powerplay/smumgr/smu7_smumgr.c | 2 +
17 files changed, 257 insertions(+), 145 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index a0bff4713672..94c415176cdc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -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);
@@ -299,8 +304,10 @@ void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
memcpy_fromio(buf, addr, count);
}
- if (count == size)
+ if (count == size) {
+ drm_dev_exit(idx);
return;
+ }
pos += count;
buf += count / 4;
@@ -323,6 +330,8 @@ 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);
+
+ drm_dev_exit(idx);
}
/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index 4d32233cde92..04ba5eef1e88 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -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;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 148a3b481b12..62fcbd446c71 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -30,6 +30,7 @@
#include <linux/slab.h>
#include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "atom.h"
@@ -137,7 +138,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
bool secure;
unsigned i;
- int r = 0;
+ int idx, r = 0;
bool need_pipe_sync = false;
if (num_ibs == 0)
@@ -169,13 +170,16 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
return -EINVAL;
}
+ if (!drm_dev_enter(&adev->ddev, &idx))
+ return -ENODEV;
+
alloc_size = ring->funcs->emit_frame_size + num_ibs *
ring->funcs->emit_ib_size;
r = amdgpu_ring_alloc(ring, alloc_size);
if (r) {
dev_err(adev->dev, "scheduling IB failed (%d).\n", r);
- return r;
+ goto exit;
}
need_ctx_switch = ring->current_ctx != fence_ctx;
@@ -205,7 +209,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
r = amdgpu_vm_flush(ring, job, need_pipe_sync);
if (r) {
amdgpu_ring_undo(ring);
- return r;
+ goto exit;
}
}
@@ -286,7 +290,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
if (job && job->vmid)
amdgpu_vmid_reset(adev, ring->funcs->vmhub, job->vmid);
amdgpu_ring_undo(ring);
- return r;
+ goto exit;
}
if (ring->funcs->insert_end)
@@ -304,7 +308,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
ring->funcs->emit_wave_limit(ring, false);
amdgpu_ring_commit(ring);
- return 0;
+
+exit:
+ drm_dev_exit(idx);
+ return r;
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 9e769cf6095b..bb6afee61666 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -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;
}
@@ -359,8 +366,7 @@ 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);
@@ -625,8 +631,7 @@ 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);
@@ -781,8 +786,7 @@ 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,
@@ -1038,8 +1042,7 @@ 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,
@@ -1275,8 +1278,7 @@ 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_copy_fw(psp, psp->ta_hdcp_start_addr,
psp->ta_hdcp_ucode_size);
psp_prep_ta_load_cmd_buf(cmd,
@@ -1427,8 +1429,7 @@ 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,
@@ -1573,8 +1574,7 @@ 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,
@@ -3022,7 +3022,7 @@ 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;
@@ -3031,6 +3031,9 @@ 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)
@@ -3062,16 +3065,30 @@ 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);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 46a5328e00e0..2bfdc278817f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -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
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 688624ebe421..e1985bc34436 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -35,6 +35,8 @@
#include "amdgpu.h"
#include "atom.h"
+#include <drm/drm_drv.h>
+
/*
* Rings
* Most engines on the GPU are fed via ring buffers. Ring
@@ -461,3 +463,71 @@ int amdgpu_ring_test_helper(struct amdgpu_ring *ring)
ring->sched.ready = !r;
return r;
}
+
+void amdgpu_ring_clear_ring(struct amdgpu_ring *ring)
+{
+ int idx;
+ int i = 0;
+
+ if (!drm_dev_enter(&ring->adev->ddev, &idx))
+ return;
+
+ while (i <= ring->buf_mask)
+ ring->ring[i++] = ring->funcs->nop;
+
+ drm_dev_exit(idx);
+
+}
+
+void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v)
+{
+ int idx;
+
+ if (!drm_dev_enter(&ring->adev->ddev, &idx))
+ return;
+
+ if (ring->count_dw <= 0)
+ DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
+ ring->ring[ring->wptr++ & ring->buf_mask] = v;
+ ring->wptr &= ring->ptr_mask;
+ ring->count_dw--;
+
+ drm_dev_exit(idx);
+}
+
+void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
+ void *src, int count_dw)
+{
+ unsigned occupied, chunk1, chunk2;
+ void *dst;
+ int idx;
+
+ if (!drm_dev_enter(&ring->adev->ddev, &idx))
+ return;
+
+ if (unlikely(ring->count_dw < count_dw))
+ DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
+
+ occupied = ring->wptr & ring->buf_mask;
+ dst = (void *)&ring->ring[occupied];
+ chunk1 = ring->buf_mask + 1 - occupied;
+ chunk1 = (chunk1 >= count_dw) ? count_dw: chunk1;
+ chunk2 = count_dw - chunk1;
+ chunk1 <<= 2;
+ chunk2 <<= 2;
+
+ if (chunk1)
+ memcpy(dst, src, chunk1);
+
+ if (chunk2) {
+ src += chunk1;
+ dst = (void *)ring->ring;
+ memcpy(dst, src, chunk2);
+ }
+
+ ring->wptr += count_dw;
+ ring->wptr &= ring->ptr_mask;
+ ring->count_dw -= count_dw;
+
+ drm_dev_exit(idx);
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index e7d3d0dbdd96..c67bc6d3d039 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -299,53 +299,12 @@ static inline void amdgpu_ring_set_preempt_cond_exec(struct amdgpu_ring *ring,
*ring->cond_exe_cpu_addr = cond_exec;
}
-static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring)
-{
- int i = 0;
- while (i <= ring->buf_mask)
- ring->ring[i++] = ring->funcs->nop;
-
-}
-
-static inline void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v)
-{
- if (ring->count_dw <= 0)
- DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
- ring->ring[ring->wptr++ & ring->buf_mask] = v;
- ring->wptr &= ring->ptr_mask;
- ring->count_dw--;
-}
+void amdgpu_ring_clear_ring(struct amdgpu_ring *ring);
-static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
- void *src, int count_dw)
-{
- unsigned occupied, chunk1, chunk2;
- void *dst;
-
- if (unlikely(ring->count_dw < count_dw))
- DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
-
- occupied = ring->wptr & ring->buf_mask;
- dst = (void *)&ring->ring[occupied];
- chunk1 = ring->buf_mask + 1 - occupied;
- chunk1 = (chunk1 >= count_dw) ? count_dw: chunk1;
- chunk2 = count_dw - chunk1;
- chunk1 <<= 2;
- chunk2 <<= 2;
+void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v);
- if (chunk1)
- memcpy(dst, src, chunk1);
-
- if (chunk2) {
- src += chunk1;
- dst = (void *)ring->ring;
- memcpy(dst, src, chunk2);
- }
-
- ring->wptr += count_dw;
- ring->wptr &= ring->ptr_mask;
- ring->count_dw -= count_dw;
-}
+void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
+ void *src, int count_dw);
int amdgpu_ring_test_helper(struct amdgpu_ring *ring);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index c6dbc0801604..82f0542c7792 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -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);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index ea6a62f67e38..833203401ef4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -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);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 201645963ba5..21f7d3644d70 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -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);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 9f868cf3b832..7dd5f10ab570 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -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(¶ms, 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;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
index 589410c32d09..2cec71e823f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
@@ -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) {
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
index c4828bd3264b..618e5b6b85d9 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
@@ -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,
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
index f2e725f72d2f..d0a6cccd0897 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
@@ -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,
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
index 8e238dea7bef..90910d19db12 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
@@ -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)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index 3f15bf34123a..df34be8ec82d 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -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))
diff --git a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
index aae25243eb10..d628b91846c9 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
@@ -405,6 +405,8 @@ int smu7_request_smu_load_fw(struct pp_hwmgr *hwmgr)
UCODE_ID_MEC_STORAGE, &toc->entry[toc->num_entries++]),
"Failed to Get Firmware Entry.", r = -EINVAL; goto failed);
}
+
+ /* AG TODO Can't call drm_dev_enter/exit because access adev->ddev here ... */
memcpy_toio(smu_data->header_buffer.kaddr, smu_data->toc,
sizeof(struct SMU_DRAMData_TOC));
smum_send_msg_to_smc_with_parameter(hwmgr,
--
2.25.1
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