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| author | Paulo Zanoni | 2013-05-31 21:33:23 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2013-05-31 21:40:08 +0200 |
| commit | 3c4ca58c12a3bf71433425df534dfbb85d8a5dc5 (patch) | |
| tree | 9abab8615571f4a7ba90ac273a386cd162c81f40 | |
| parent | drm/i915: implement IPS feature (diff) | |
| download | kernel-qcow2-linux-3c4ca58c12a3bf71433425df534dfbb85d8a5dc5.tar.gz kernel-qcow2-linux-3c4ca58c12a3bf71433425df534dfbb85d8a5dc5.tar.xz kernel-qcow2-linux-3c4ca58c12a3bf71433425df534dfbb85d8a5dc5.zip | |
drm/i915: add enable_ips module option
IPS is still enabled by default. Feature requested by the power
management team.
This should also help testing the feature on some early pre-production
hardware where there were relationship problems between IPS and PSR.
v2: Rebase on top of the newest IPS implementation.
v3: Check i915_enable_ips at compute_config, not supports_ips, so the
kernel parameter will be ignored at haswell_get_pipe_config.
Requested-by: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 3 |
3 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a4e8f16a38e8..b23cd63b9fda 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -128,6 +128,10 @@ module_param_named(disable_power_well, i915_disable_power_well, int, 0600); MODULE_PARM_DESC(disable_power_well, "Disable the power well when possible (default: false)"); +int i915_enable_ips __read_mostly = 1; +module_param_named(enable_ips, i915_enable_ips, int, 0600); +MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); + static struct drm_driver driver; extern int intel_agp_enabled; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index a18da3c6c96e..be869f261993 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1470,6 +1470,7 @@ extern bool i915_enable_hangcheck __read_mostly; extern int i915_enable_ppgtt __read_mostly; extern unsigned int i915_preliminary_hw_support __read_mostly; extern int i915_disable_power_well __read_mostly; +extern int i915_enable_ips __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index acfc6a164a59..c112466bb769 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4034,7 +4034,8 @@ retry: static void hsw_compute_ips_config(struct intel_crtc *crtc, struct intel_crtc_config *pipe_config) { - pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && + pipe_config->ips_enabled = i915_enable_ips && + hsw_crtc_supports_ips(crtc) && pipe_config->pipe_bpp == 24; } |