On 1/7/2016 1:15 AM, Rodrigo Vivi wrote:
When adding IS_KABYLAKE definition I didn't included the
DC states related because I was planing to include them
with the patch that fixes DMC firmware loading, but I
forgot them.
Meanwhile this runtime pm code changed a lot for
Skylake.
Well, I didn't expect that this would crash the machine
and I just noticed now that Sarah warned me our driver
wasn't working. Thanks Sarah.
Cc: Sarah Sharp <sarah.a.sharp@xxxxxxxxx>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_csr.c | 5 +++--
drivers/gpu/drm/i915/intel_runtime_pm.c | 19 ++++++++++++-------
2 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 9bb63a8..3f69829 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -278,7 +278,8 @@ static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv,
csr->version = css_header->version;
- if (IS_SKYLAKE(dev) && csr->version < SKL_CSR_VERSION_REQUIRED) {
+ if ((IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) &&
+ csr->version < SKL_CSR_VERSION_REQUIRED) {
DRM_INFO("Refusing to load old Skylake DMC firmware v%u.%u,"
" please upgrade to v%u.%u or later"
" [https://01.org/linuxgraphics/intel-linux-graphics-firmwares].\n";,
@@ -421,7 +422,7 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv)
if (!HAS_CSR(dev_priv))
return;
- if (IS_SKYLAKE(dev_priv))
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
csr->fw_path = I915_CSR_SKL;
else if (IS_BROXTON(dev_priv))
csr->fw_path = I915_CSR_BXT;
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index ddbdbff..f5bf54c 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -532,7 +532,8 @@ static void assert_can_enable_dc5(struct drm_i915_private *dev_priv)
bool pg2_enabled = intel_display_power_well_is_enabled(dev_priv,
SKL_DISP_PW_2);
- WARN_ONCE(!IS_SKYLAKE(dev), "Platform doesn't support DC5.\n");
+ WARN_ONCE(!IS_SKYLAKE(dev) && !IS_KABYLAKE(dev),
+ "Platform doesn't support DC5.\n");
WARN_ONCE(!HAS_RUNTIME_PM(dev), "Runtime PM not enabled.\n");
WARN_ONCE(pg2_enabled, "PG2 not disabled to enable DC5.\n");
@@ -568,7 +569,8 @@ static void assert_can_enable_dc6(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
- WARN_ONCE(!IS_SKYLAKE(dev), "Platform doesn't support DC6.\n");
+ WARN_ONCE(!IS_SKYLAKE(dev) && !IS_KABYLAKE(dev),
+ "Platform doesn't support DC6.\n");
WARN_ONCE(!HAS_RUNTIME_PM(dev), "Runtime PM not enabled.\n");
WARN_ONCE(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
"Backlight is not disabled.\n");
@@ -595,7 +597,8 @@ static void gen9_disable_dc5_dc6(struct drm_i915_private *dev_priv)
{
assert_can_disable_dc5(dev_priv);
- if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 && i915.enable_dc != 1)
+ if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) &&
+ i915.enable_dc != 0 && i915.enable_dc != 1)
assert_can_disable_dc6(dev_priv);
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
@@ -783,7 +786,8 @@ static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv,
static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 && i915.enable_dc != 1)
+ if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) &&
+ i915.enable_dc != 0 && i915.enable_dc != 1)
skl_enable_dc6(dev_priv);
else
gen9_enable_dc5(dev_priv);
@@ -795,7 +799,8 @@ static void gen9_dc_off_power_well_sync_hw(struct drm_i915_private *dev_priv,
if (power_well->count > 0) {
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
} else {
- if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 &&
+ if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) &&
+ i915.enable_dc != 0 &&
i915.enable_dc != 1)
gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
else
@@ -1851,7 +1856,7 @@ void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv)
{
struct i915_power_well *well;
- if (!IS_SKYLAKE(dev_priv))
+ if (!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv))
return;
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
@@ -1865,7 +1870,7 @@ void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv)
{
struct i915_power_well *well;
- if (!IS_SKYLAKE(dev_priv))
+ if (!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv))
return;
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
Hi Rodrigo,
I had the same issue with the power wells and sent the same fix
yesterday
(http://cgit.freedesktop.org/drm-intel/commit/?id=16fbc291cb87c7defcd13ad715d3e4af0d523e43).
I didn't try to use DMC, so I didn't catch the other problem.
Without the now redundant changes in skl_pw1_misc_io_init/fini,
Reviewed-by: Michel Thierry <michel.thierry@xxxxxxxxx>
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