Having two separate if ladders gets increasingly hard to maintain. Put
them together.
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_csr.c | 54 ++++++++++++++++------------------------
2 files changed, 23 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 767615ecdea5..368066010f94 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -464,6 +464,7 @@ struct drm_i915_display_funcs {
struct intel_csr {
struct work_struct work;
const char *fw_path;
+ uint32_t required_version;
uint32_t *dmc_payload;
uint32_t dmc_fw_size;
uint32_t version;
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 14cf4c367e36..9a60bb9cc443 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -284,7 +284,6 @@ static uint32_t *parse_csr_fw(struct drm_i915_private
*dev_priv,
uint32_t max_fw_size = 0;
uint32_t i;
uint32_t *dmc_payload;
- uint32_t required_version;
if (!fw)
return NULL;
@@ -299,36 +298,19 @@ static uint32_t *parse_csr_fw(struct drm_i915_private
*dev_priv,
return NULL;
}
- csr->version = css_header->version;
-
- 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;
- } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
- required_version = KBL_CSR_VERSION_REQUIRED;
- } else if (IS_SKYLAKE(dev_priv)) {
- required_version = SKL_CSR_VERSION_REQUIRED;
- } else if (IS_BROXTON(dev_priv)) {
- required_version = BXT_CSR_VERSION_REQUIRED;
- } else {
- MISSING_CASE(INTEL_REVID(dev_priv));
- required_version = 0;
- }
-
- if (csr->version != required_version) {
+ if (csr->required_version &&
+ css_header->version != csr->required_version) {
DRM_INFO("Refusing to load DMC firmware v%u.%u,"
" please use v%u.%u\n",
- CSR_VERSION_MAJOR(csr->version),
- CSR_VERSION_MINOR(csr->version),
- CSR_VERSION_MAJOR(required_version),
- CSR_VERSION_MINOR(required_version));
+ CSR_VERSION_MAJOR(css_header->version),
+ CSR_VERSION_MINOR(css_header->version),
+ CSR_VERSION_MAJOR(csr->required_version),
+ CSR_VERSION_MINOR(csr->required_version));
return NULL;
}
+ csr->version = css_header->version;
+
readcount += sizeof(struct intel_css_header);
/* Extract Package Header information*/
@@ -469,18 +451,26 @@ void intel_csr_ucode_init(struct drm_i915_private
*dev_priv)
if (!HAS_CSR(dev_priv))
return;
- if (i915_modparams.dmc_firmware_path)
+ if (i915_modparams.dmc_firmware_path) {
csr->fw_path = i915_modparams.dmc_firmware_path;
- else if (IS_CANNONLAKE(dev_priv))
+ /* Bypass version check for firmware override. */
+ csr->required_version = 0;
+ } else if (IS_CANNONLAKE(dev_priv)) {
csr->fw_path = I915_CSR_CNL;
- else if (IS_GEMINILAKE(dev_priv))
+ csr->required_version = CNL_CSR_VERSION_REQUIRED;
+ } else if (IS_GEMINILAKE(dev_priv)) {
csr->fw_path = I915_CSR_GLK;
- else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))
+ csr->required_version = GLK_CSR_VERSION_REQUIRED;
+ } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
csr->fw_path = I915_CSR_KBL;
- else if (IS_SKYLAKE(dev_priv))
+ csr->required_version = KBL_CSR_VERSION_REQUIRED;
+ } else if (IS_SKYLAKE(dev_priv)) {
csr->fw_path = I915_CSR_SKL;
- else if (IS_BROXTON(dev_priv))
+ csr->required_version = SKL_CSR_VERSION_REQUIRED;
+ } else if (IS_BROXTON(dev_priv)) {
csr->fw_path = I915_CSR_BXT;
+ csr->required_version = BXT_CSR_VERSION_REQUIRED;
+ }
/*
* Obtain a runtime pm reference, until CSR is loaded,
--
2.11.0
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