[Intel-gfx] [PATCH 33/89] drm/i915/skl: Sunrise Point PCH detection

[Damien Lespiau]

On Wed, Sep 17, 2014 at 03:18:21PM -0700, Rodrigo Vivi wrote:
>    Where can I find these pch device id definitions?

You'll have to trust Satheesh on that, it's not something we have
documented in the GPU specs.

-- 
Damien

>    On Thu, Sep 4, 2014 at 4:26 AM, Damien Lespiau <damien.lespiau at intel.com>
>    wrote:
> 
>      From: Satheeshakrishna M <satheeshakrishna.m at intel.com>
> 
>      This patch implements detection of SPT and SPT-LP PCH devices.
> 
>      v2: Added HAS_PCH_SPT macro
> 
>      Signed-off-by: Satheeshakrishna M <satheeshakrishna.m at intel.com>
>      Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
>      ---
>       drivers/gpu/drm/i915/i915_drv.c | 10 ++++++++++
>       drivers/gpu/drm/i915/i915_drv.h |  4 ++++
>       2 files changed, 14 insertions(+)
> 
>      diff --git a/drivers/gpu/drm/i915/i915_drv.c
>      b/drivers/gpu/drm/i915/i915_drv.c
>      index 3d7f823..c6a8a80 100644
>      --- a/drivers/gpu/drm/i915/i915_drv.c
>      +++ b/drivers/gpu/drm/i915/i915_drv.c
>      @@ -475,6 +475,16 @@ void intel_detect_pch(struct drm_device *dev)
>                                      DRM_DEBUG_KMS("Found LynxPoint LP
>      PCH\n");
>                                      WARN_ON(!IS_HASWELL(dev));
>                                      WARN_ON(!IS_ULT(dev));
>      +                       } else if (id == INTEL_PCH_SPT_DEVICE_ID_TYPE) {
>      +                               dev_priv->pch_type = PCH_SPT;
>      +                               DRM_DEBUG_KMS("Found SunrisePoint
>      PCH\n");
>      +                               WARN_ON(!IS_SKYLAKE(dev));
>      +                               WARN_ON(IS_ULT(dev));
>      +                       } else if (id ==
>      INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) {
>      +                               dev_priv->pch_type = PCH_SPT;
>      +                               DRM_DEBUG_KMS("Found SunrisePoint LP
>      PCH\n");
>      +                               WARN_ON(!IS_SKYLAKE(dev));
>      +                               WARN_ON(!IS_ULT(dev));
>                              } else
>                                      continue;
> 
>      diff --git a/drivers/gpu/drm/i915/i915_drv.h
>      b/drivers/gpu/drm/i915/i915_drv.h
>      index cf4fc86..be82888 100644
>      --- a/drivers/gpu/drm/i915/i915_drv.h
>      +++ b/drivers/gpu/drm/i915/i915_drv.h
>      @@ -699,6 +699,7 @@ enum intel_pch {
>              PCH_IBX,        /* Ibexpeak PCH */
>              PCH_CPT,        /* Cougarpoint PCH */
>              PCH_LPT,        /* Lynxpoint PCH */
>      +       PCH_SPT,        /* Sunrisepoint PCH */
>              PCH_NOP,
>       };
> 
>      @@ -2184,8 +2185,11 @@ struct drm_i915_cmd_table {
>       #define INTEL_PCH_PPT_DEVICE_ID_TYPE           0x1e00
>       #define INTEL_PCH_LPT_DEVICE_ID_TYPE           0x8c00
>       #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE                0x9c00
>      +#define INTEL_PCH_SPT_DEVICE_ID_TYPE           0xA100
>      +#define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE                0x9D00
> 
>       #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
>      +#define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
>       #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
>       #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
>       #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
>      --
>      1.8.3.1
> 
>      _______________________________________________
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> 
>    --
>    Rodrigo Vivi
>    Blog: http://blog.vivi.eng.br
>