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-rw-r--r--drivers/accel/ivpu/ivpu_fw.c8
-rw-r--r--drivers/accel/ivpu/ivpu_gem.h5
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/accel/ivpu/ivpu_fw.c b/drivers/accel/ivpu/ivpu_fw.c
index 9827ea4d7b83..0191cf8e5964 100644
--- a/drivers/accel/ivpu/ivpu_fw.c
+++ b/drivers/accel/ivpu/ivpu_fw.c
@@ -220,7 +220,8 @@ static int ivpu_fw_mem_init(struct ivpu_device *vdev)
if (ret)
return ret;
- fw->mem = ivpu_bo_alloc_internal(vdev, fw->runtime_addr, fw->runtime_size, DRM_IVPU_BO_WC);
+ fw->mem = ivpu_bo_alloc_internal(vdev, fw->runtime_addr, fw->runtime_size,
+ DRM_IVPU_BO_CACHED | DRM_IVPU_BO_NOSNOOP);
if (!fw->mem) {
ivpu_err(vdev, "Failed to allocate firmware runtime memory\n");
return -ENOMEM;
@@ -330,7 +331,7 @@ int ivpu_fw_load(struct ivpu_device *vdev)
memset(start, 0, size);
}
- wmb(); /* Flush WC buffers after writing fw->mem */
+ clflush_cache_range(fw->mem->kvaddr, fw->mem->base.size);
return 0;
}
@@ -432,6 +433,7 @@ void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params
if (!ivpu_fw_is_cold_boot(vdev)) {
boot_params->save_restore_ret_address = 0;
vdev->pm->is_warmboot = true;
+ clflush_cache_range(vdev->fw->mem->kvaddr, SZ_4K);
return;
}
@@ -493,7 +495,7 @@ void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params
boot_params->punit_telemetry_sram_size = ivpu_hw_reg_telemetry_size_get(vdev);
boot_params->vpu_telemetry_enable = ivpu_hw_reg_telemetry_enable_get(vdev);
- wmb(); /* Flush WC buffers after writing bootparams */
+ clflush_cache_range(vdev->fw->mem->kvaddr, SZ_4K);
ivpu_fw_boot_params_print(vdev, boot_params);
}
diff --git a/drivers/accel/ivpu/ivpu_gem.h b/drivers/accel/ivpu/ivpu_gem.h
index 6b0ceda5f253..f4130586ff1b 100644
--- a/drivers/accel/ivpu/ivpu_gem.h
+++ b/drivers/accel/ivpu/ivpu_gem.h
@@ -8,6 +8,8 @@
#include <drm/drm_gem.h>
#include <drm/drm_mm.h>
+#define DRM_IVPU_BO_NOSNOOP 0x10000000
+
struct dma_buf;
struct ivpu_bo_ops;
struct ivpu_file_priv;
@@ -83,6 +85,9 @@ static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)
static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)
{
+ if (bo->flags & DRM_IVPU_BO_NOSNOOP)
+ return false;
+
return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;
}