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drm/i915/icl: Record the valid VDBoxes with SFC capability

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In Gen11, only even numbered "logical" VDBoxes are hooked up to an SFC
(Scaler & Format Converter) unit. We will use this information to decide
when the SFC units need to be reset.

BSpec: 20189

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213091522.2926-3-chris@chris-wilson.co.uk
This commit is contained in:
Oscar Mateo 2018-12-13 09:15:21 +00:00 committed by Chris Wilson
parent 921f3a60e5
commit 57b19d5518
2 changed files with 13 additions and 1 deletions
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11
drivers/gpu/drm/i915/intel_device_info.c
View File

@ -884,8 +884,9 @@ void intel_driver_caps_print(const struct intel_driver_caps *caps,
void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
{
struct intel_device_info *info = mkwrite_device_info(dev_priv);
u32 media_fuse;
unsigned int logical_vdbox = 0;
unsigned int i;
u32 media_fuse;
if (INTEL_GEN(dev_priv) < 11)
return;
@ -904,7 +905,15 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
if (!(BIT(i) & info->vdbox_enable)) {
info->ring_mask &= ~ENGINE_MASK(_VCS(i));
DRM_DEBUG_DRIVER("vcs%u fused off\n", i);
continue;
}
/*
* In Gen11, only even numbered logical VDBOXes are
* hooked up to an SFC (Scaler & Format Converter) unit.
*/
if (logical_vdbox++ % 2 == 0)
info->vdbox_sfc_access |= BIT(i);
}
DRM_DEBUG_DRIVER("vebox enable: %04x\n", info->vebox_enable);

3
drivers/gpu/drm/i915/intel_device_info.h
View File

@ -198,6 +198,9 @@ struct intel_device_info {
u8 vdbox_enable;
u8 vebox_enable;
/* Media engine access to SFC per instance */
u8 vdbox_sfc_access;
struct color_luts {
u16 degamma_lut_size;
u16 gamma_lut_size;