firmware/dmc/icl: load v1.07 on icelake.

Add Support to load DMC on Icelake.

While at it, also add support to load the firmware
during system resume.

v2: load firmware during system resume.(Imre)

v3: enable has_csr for icelake.(Jyoti)

v4: Only load the firmware in this patch

Cc: Jyoti Yadav <jyoti.r.yadav@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180828003844.4682-2-anusha.srivatsa@intel.com

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 14cf4c3..4aa8f3d 100644 (file)
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -34,6 +34,9 @@
  * low-power state and comes back to normal.
  */
 
+#define I915_CSR_ICL "i915/icl_dmc_ver1_07.bin"
+#define ICL_CSR_VERSION_REQUIRED       CSR_VERSION(1, 7)
+
 #define I915_CSR_GLK "i915/glk_dmc_ver1_04.bin"
 MODULE_FIRMWARE(I915_CSR_GLK);
 #define GLK_CSR_VERSION_REQUIRED       CSR_VERSION(1, 4)
@@ -304,6 +307,8 @@ static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv,
        if (csr->fw_path == i915_modparams.dmc_firmware_path) {
                /* Bypass version check for firmware override. */
                required_version = csr->version;
+       } else if (IS_ICELAKE(dev_priv)) {
+               required_version = ICL_CSR_VERSION_REQUIRED;
        } else if (IS_CANNONLAKE(dev_priv)) {
                required_version = CNL_CSR_VERSION_REQUIRED;
        } else if (IS_GEMINILAKE(dev_priv)) {
@@ -471,6 +476,8 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv)
 
        if (i915_modparams.dmc_firmware_path)
                csr->fw_path = i915_modparams.dmc_firmware_path;
+       else if (IS_ICELAKE(dev_priv))
+               csr->fw_path = I915_CSR_ICL;
        else if (IS_CANNONLAKE(dev_priv))
                csr->fw_path = I915_CSR_CNL;
        else if (IS_GEMINILAKE(dev_priv))

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 480dadb..9bebec3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -3563,6 +3563,9 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv,
 
        /* 7. Setup MBUS. */
        icl_mbus_init(dev_priv);
+
+       if (resume && dev_priv->csr.dmc_payload)
+               intel_csr_load_program(dev_priv);
 }
 
 static void icl_display_core_uninit(struct drm_i915_private *dev_priv)