diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2018-04-24 15:20:16 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-05-02 13:05:01 +0300 |
| commit | f425d08bf17a68ade12424f420feadb70113f23a (patch) | |
| tree | cbe78456da1c8527817dc483c5b70dca72962bd0 | |
| parent | 53f071e19d566e7d0a4eada1bd8313a4cdb660a4 (diff) | |
| download | op-kernel-dev-f425d08bf17a68ade12424f420feadb70113f23a.zip op-kernel-dev-f425d08bf17a68ade12424f420feadb70113f23a.tar.gz | |
drm/i915: add support for specifying DMC firmware override by module param
Use i915.dmc_firmware_path to override default firmware for the platform
and bypassing version checks.
v2: add missing param struct member declaration (David)
Tested-by: David Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: David Weinehall <david.weinehall@linux.intel.com>
Acked-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180424122016.2416-1-jani.nikula@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_csr.c | 9 |
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 08108ce..66ea355 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -164,6 +164,9 @@ i915_param_named_unsafe(guc_firmware_path, charp, 0400, i915_param_named_unsafe(huc_firmware_path, charp, 0400, "HuC firmware path to use instead of the default one"); +i915_param_named_unsafe(dmc_firmware_path, charp, 0400, + "DMC firmware path to use instead of the default one"); + i915_param_named_unsafe(enable_dp_mst, bool, 0600, "Enable multi-stream transport (MST) for new DisplayPort sinks. (default: true)"); diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h index c963603..6684025 100644 --- a/drivers/gpu/drm/i915/i915_params.h +++ b/drivers/gpu/drm/i915/i915_params.h @@ -51,6 +51,7 @@ struct drm_printer; param(int, guc_log_level, -1) \ param(char *, guc_firmware_path, NULL) \ param(char *, huc_firmware_path, NULL) \ + param(char *, dmc_firmware_path, NULL) \ param(int, mmio_debug, 0) \ param(int, edp_vswing, 0) \ param(int, reset, 2) \ diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c index f9550ea..cf9b600 100644 --- a/drivers/gpu/drm/i915/intel_csr.c +++ b/drivers/gpu/drm/i915/intel_csr.c @@ -298,7 +298,10 @@ static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv, csr->version = css_header->version; - if (IS_CANNONLAKE(dev_priv)) { + if (csr->fw_path == i915_modparams.dmc_firmware_path) { + /* Bypass version check for firmware override. */ + required_version = csr->version; + } else if (IS_CANNONLAKE(dev_priv)) { required_version = CNL_CSR_VERSION_REQUIRED; } else if (IS_GEMINILAKE(dev_priv)) { required_version = GLK_CSR_VERSION_REQUIRED; @@ -453,7 +456,9 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv) if (!HAS_CSR(dev_priv)) return; - if (IS_CANNONLAKE(dev_priv)) + if (i915_modparams.dmc_firmware_path) + csr->fw_path = i915_modparams.dmc_firmware_path; + else if (IS_CANNONLAKE(dev_priv)) csr->fw_path = I915_CSR_CNL; else if (IS_GEMINILAKE(dev_priv)) csr->fw_path = I915_CSR_GLK; |
