Avoid to expose RC6 and RC6pp to the platforms that doesn't support it. Although this doesn't really change powertop behaviour as described on the request.
References: https://bugs.freedesktop.org/show_bug.cgi?id=84524 Cc: Josh Triplett <josh.tripl...@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 3 +++ drivers/gpu/drm/i915/i915_sysfs.c | 39 ++++++++++++++++++++++++++++++++++++--- drivers/gpu/drm/i915/intel_pm.c | 12 ++++++++---- 3 files changed, 47 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d10b417..54b2aac 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2185,6 +2185,9 @@ struct drm_i915_cmd_table { #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev)) #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \ IS_BROADWELL(dev) || IS_VALLEYVIEW(dev)) +#define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6) +#define HAS_RC6p(dev) (IS_GEN6(dev) || IS_IVYBRIDGE(dev)) +#define HAS_RC6pp(dev) IS_GEN6(dev) #define INTEL_PCH_DEVICE_ID_MASK 0xff00 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index 503847f..879e889 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -139,8 +139,6 @@ static DEVICE_ATTR(rc6pp_residency_ms, S_IRUGO, show_rc6pp_ms, NULL); static struct attribute *rc6_attrs[] = { &dev_attr_rc6_enable.attr, &dev_attr_rc6_residency_ms.attr, - &dev_attr_rc6p_residency_ms.attr, - &dev_attr_rc6pp_residency_ms.attr, NULL }; @@ -148,6 +146,26 @@ static struct attribute_group rc6_attr_group = { .name = power_group_name, .attrs = rc6_attrs }; + +static struct attribute *rc6p_attrs[] = { + &dev_attr_rc6p_residency_ms.attr, + NULL +}; + +static struct attribute_group rc6p_attr_group = { + .name = power_group_name, + .attrs = rc6p_attrs +}; + +static struct attribute *rc6pp_attrs[] = { + &dev_attr_rc6pp_residency_ms.attr, + NULL +}; + +static struct attribute_group rc6pp_attr_group = { + .name = power_group_name, + .attrs = rc6pp_attrs +}; #endif static int l3_access_valid(struct drm_device *dev, loff_t offset) @@ -595,12 +613,25 @@ void i915_setup_sysfs(struct drm_device *dev) int ret; #ifdef CONFIG_PM - if (INTEL_INFO(dev)->gen >= 6) { + if (HAS_RC6(dev)) { ret = sysfs_merge_group(&dev->primary->kdev->kobj, &rc6_attr_group); if (ret) DRM_ERROR("RC6 residency sysfs setup failed\n"); } + if (HAS_RC6p(dev)) { + ret = sysfs_merge_group(&dev->primary->kdev->kobj, + &rc6p_attr_group); + if (ret) + DRM_ERROR("RC6p residency sysfs setup failed\n"); + } + + if (HAS_RC6pp(dev)) { + ret = sysfs_merge_group(&dev->primary->kdev->kobj, + &rc6pp_attr_group); + if (ret) + DRM_ERROR("RC6pp residency sysfs setup failed\n"); + } #endif if (HAS_L3_DPF(dev)) { ret = device_create_bin_file(dev->primary->kdev, &dpf_attrs); @@ -640,5 +671,7 @@ void i915_teardown_sysfs(struct drm_device *dev) device_remove_bin_file(dev->primary->kdev, &dpf_attrs); #ifdef CONFIG_PM sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6_attr_group); + sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6p_attr_group); + sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6pp_attr_group); #endif } diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7553e47..fa1227e 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3632,10 +3632,14 @@ static void intel_print_rc6_info(struct drm_device *dev, u32 mode) else mode = 0; } - DRM_DEBUG_KMS("Enabling RC6 states: RC6 %s, RC6p %s, RC6pp %s\n", - (mode & GEN6_RC_CTL_RC6_ENABLE) ? "on" : "off", - (mode & GEN6_RC_CTL_RC6p_ENABLE) ? "on" : "off", - (mode & GEN6_RC_CTL_RC6pp_ENABLE) ? "on" : "off"); + DRM_DEBUG_KMS("Enabling RC6 states: RC6 %s\n", + (mode & GEN6_RC_CTL_RC6_ENABLE) ? "on" : "off"); + if (HAS_RC6p(dev)) + DRM_DEBUG_KMS("Enabling RC6 states: RC6p %s\n", + (mode & GEN6_RC_CTL_RC6p_ENABLE) ? "on" : "off"); + if (HAS_RC6pp(dev)) + DRM_DEBUG_KMS("Enabling RC6 states: RC6pp %s\n", + (mode & GEN6_RC_CTL_RC6pp_ENABLE) ? "on" : "off"); } static int sanitize_rc6_option(const struct drm_device *dev, int enable_rc6) -- 1.9.3 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
