From: Daniel Vetter <daniel.vetter@xxxxxxxxx> We need to make sure we don't put garbage into the hw if dmc firmware loading failed mid-thru. Cc: Damien Lespiau <damien.lespiau@xxxxxxxxx> Cc: Imre Deak <imre.deak@xxxxxxxxx> Cc: Sunil Kamath <sunil.kamath@xxxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_csr.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c index bf98871..87596a2 100644 --- a/drivers/gpu/drm/i915/intel_csr.c +++ b/drivers/gpu/drm/i915/intel_csr.c @@ -202,6 +202,9 @@ void intel_csr_load_program(struct drm_device *dev) return; } + if (!dev_priv->csr.dmc_payload) + return; + fw_size = dev_priv->csr.dmc_fw_size; for (i = 0; i < fw_size; i++) I915_WRITE(CSR_PROGRAM_BASE + i * 4, -- 2.0.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
