[PATCH v4 11/14] drm/amdgpu: Guard against write accesses after device removal

Andrey Grodzovsky andrey.grodzovsky at amd.com
Mon Jan 18 21:01:20 UTC 2021


This should prevent writing to memory or IO ranges possibly
already allocated for other uses after our device is removed.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 57 ++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c    |  9 ++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c    | 53 +++++++++++++---------
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h    |  3 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c   | 70 ++++++++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h   | 49 ++-------------------
 drivers/gpu/drm/amd/amdgpu/psp_v11_0.c     | 16 ++-----
 drivers/gpu/drm/amd/amdgpu/psp_v12_0.c     |  8 +---
 drivers/gpu/drm/amd/amdgpu/psp_v3_1.c      |  8 +---
 9 files changed, 184 insertions(+), 89 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index e99f4f1..0a9d73c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -72,6 +72,8 @@
 
 #include <linux/iommu.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");
@@ -404,13 +406,21 @@ uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset)
  */
 void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if (offset < adev->rmmio_size)
 		writeb(value, adev->rmmio + offset);
 	else
 		BUG();
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -427,9 +437,14 @@ void amdgpu_device_wreg(struct amdgpu_device *adev,
 			uint32_t reg, uint32_t v,
 			uint32_t acc_flags)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if ((reg * 4) < adev->rmmio_size) {
 		if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
 		    amdgpu_sriov_runtime(adev) &&
@@ -444,6 +459,8 @@ void amdgpu_device_wreg(struct amdgpu_device *adev,
 	}
 
 	trace_amdgpu_device_wreg(adev->pdev->device, reg, v);
+
+	drm_dev_exit(idx);
 }
 
 /*
@@ -454,9 +471,14 @@ void amdgpu_device_wreg(struct amdgpu_device *adev,
 void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
 			     uint32_t reg, uint32_t v)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if (amdgpu_sriov_fullaccess(adev) &&
 	    adev->gfx.rlc.funcs &&
 	    adev->gfx.rlc.funcs->is_rlcg_access_range) {
@@ -465,6 +487,8 @@ void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
 	} else {
 		writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
 	}
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -499,15 +523,22 @@ u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
  */
 void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if ((reg * 4) < adev->rio_mem_size)
 		iowrite32(v, adev->rio_mem + (reg * 4));
 	else {
 		iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
 		iowrite32(v, adev->rio_mem + (mmMM_DATA * 4));
 	}
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -544,14 +575,21 @@ u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
  */
 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if (index < adev->doorbell.num_doorbells) {
 		writel(v, adev->doorbell.ptr + index);
 	} else {
 		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
 	}
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -588,14 +626,21 @@ u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index)
  */
 void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v)
 {
+	int idx;
+
 	if (adev->in_pci_err_recovery)
 		return;
 
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
+
 	if (index < adev->doorbell.num_doorbells) {
 		atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);
 	} else {
 		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
 	}
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -682,6 +727,10 @@ void amdgpu_device_indirect_wreg(struct amdgpu_device *adev,
 	unsigned long flags;
 	void __iomem *pcie_index_offset;
 	void __iomem *pcie_data_offset;
+	int idx;
+
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
 
 	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
@@ -692,6 +741,8 @@ void amdgpu_device_indirect_wreg(struct amdgpu_device *adev,
 	writel(reg_data, pcie_data_offset);
 	readl(pcie_data_offset);
 	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+
+	drm_dev_exit(idx);
 }
 
 /**
@@ -711,6 +762,10 @@ void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev,
 	unsigned long flags;
 	void __iomem *pcie_index_offset;
 	void __iomem *pcie_data_offset;
+	int idx;
+
+	if (!drm_dev_enter(&adev->ddev, &idx))
+		return;
 
 	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
@@ -727,6 +782,8 @@ void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev,
 	writel((u32)(reg_data >> 32), pcie_data_offset);
 	readl(pcie_data_offset);
 	spin_unlock_irqrestore(&adev->pcie_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 fe1a39f..1beb4e6 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_get_pde_for_bo - get the PDE for a BO
  *
@@ -98,6 +100,10 @@ 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.
@@ -105,6 +111,9 @@ 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_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 523d22d..89e2bfe 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -37,6 +37,8 @@
 
 #include "amdgpu_ras.h"
 
+#include <drm/drm_drv.h>
+
 static int psp_sysfs_init(struct amdgpu_device *adev);
 static void psp_sysfs_fini(struct amdgpu_device *adev);
 
@@ -248,7 +250,7 @@ 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 = 2000;
 	bool ras_intr = false;
 	bool skip_unsupport = false;
@@ -256,6 +258,9 @@ 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);
@@ -266,8 +271,7 @@ 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);
@@ -307,8 +311,8 @@ 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;
 		}
 	}
 
@@ -316,8 +320,10 @@ 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;
 }
 
@@ -354,8 +360,7 @@ 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);
 
@@ -570,8 +575,7 @@ 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);
@@ -726,8 +730,7 @@ 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,
@@ -982,8 +985,7 @@ 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,
@@ -1219,8 +1221,7 @@ 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,
@@ -1366,8 +1367,7 @@ 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,
@@ -1507,8 +1507,7 @@ 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,
@@ -2778,6 +2777,20 @@ static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev,
 	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 da250bc..ac69314 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -400,4 +400,7 @@ int psp_init_ta_microcode(struct psp_context *psp,
 			  const char *chip_name);
 int psp_get_fw_attestation_records_addr(struct psp_context *psp,
 					uint64_t *output_ptr);
+
+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 1a612f5..d656494 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
@@ -463,3 +465,71 @@ 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 accb243..f90b81f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -300,53 +300,12 @@ 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/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
index bd4248c..b3ce5be 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
@@ -269,10 +269,8 @@ 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 +300,8 @@ 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 +331,8 @@ 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 +365,8 @@ 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,
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
index c4828bd..618e5b6 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 f2e725f..d0a6cccd 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,
-- 
2.7.4



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