drm/amd/amdgpu: stored bios_size

It's necessary if we want to export vbios image out.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 29d3a914fc88..f31936b65a58 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1330,6 +1330,7 @@ struct amdgpu_device {
 
         /* BIOS */
         uint8_t                         *bios;
+        uint32_t                        bios_size;
         bool                            is_atom_bios;
         struct amdgpu_bo                *stollen_vga_memory;
         uint32_t                        bios_scratch[AMDGPU_BIOS_NUM_SCRATCH];
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index b7e2762fcdd2..4f973a9c7b87 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -74,6 +74,7 @@ static bool igp_read_bios_from_vram(struct amdgpu_device *adev)
                 iounmap(bios);
                 return false;
         }
+        adev->bios_size = size;
         memcpy_fromio(adev->bios, bios, size);
         iounmap(bios);
         return true;
@@ -103,6 +104,7 @@ bool amdgpu_read_bios(struct amdgpu_device *adev)
                 pci_unmap_rom(adev->pdev, bios);
                 return false;
         }
+        adev->bios_size = size;
         memcpy_fromio(adev->bios, bios, size);
         pci_unmap_rom(adev->pdev, bios);
         return true;
@@ -135,6 +137,7 @@ static bool amdgpu_read_bios_from_rom(struct amdgpu_device *adev)
                 DRM_ERROR("no memory to allocate for BIOS\n");
                 return false;
         }
+        adev->bios_size = len;
 
         /* read complete BIOS */
         return amdgpu_asic_read_bios_from_rom(adev, adev->bios, len);
@@ -159,6 +162,7 @@ static bool amdgpu_read_platform_bios(struct amdgpu_device *adev)
         if (adev->bios == NULL) {
                 return false;
         }
+        adev->bios_size = size;
 
         return true;
 }
@@ -273,6 +277,7 @@ static bool amdgpu_atrm_get_bios(struct amdgpu_device *adev)
                 kfree(adev->bios);
                 return false;
         }
+        adev->bios_size = size;
         return true;
 }
 #else
@@ -334,6 +339,7 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)
         }
 
         adev->bios = kmemdup(&vbios->VbiosContent, vhdr->ImageLength, GFP_KERNEL);
+        adev->bios_size = vhdr->ImageLength;
         ret = !!adev->bios;
 
 out_unmap: