[PATCH 2/2] add register dump function for nv asic reset

[Somalapuram Amaranath]

Register dump call on NV ASIC reset on AMD GPU reset

Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/nv.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 2ec1ffb36b1f..b5701772597f 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -529,10 +529,34 @@ nv_asic_reset_method(struct amdgpu_device *adev)
 	}
 }
 
+static void amdgpu_reset_dumps(struct amdgpu_device *adev)
+{
+	int r = 0, i;
+
+	/* original raven doesn't have full asic reset */
+	if ((adev->apu_flags & AMD_APU_IS_RAVEN) &&
+		!(adev->apu_flags & AMD_APU_IS_RAVEN2))
+		return;
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (!adev->ip_blocks[i].version->funcs->reset_reg_dumps)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->reset_reg_dumps(adev);
+
+		if (r)
+			DRM_ERROR("reset_reg_dumps of IP block <%s> failed %d\n",
+					adev->ip_blocks[i].version->funcs->name, r);
+	}
+
+	dump_stack();
+}
+
 static int nv_asic_reset(struct amdgpu_device *adev)
 {
 	int ret = 0;
 
+	amdgpu_reset_dumps(adev);
 	switch (nv_asic_reset_method(adev)) {
 	case AMD_RESET_METHOD_PCI:
 		dev_info(adev->dev, "PCI reset\n");
-- 
2.25.1