[PATCH] drm/i915: more virtual south bridge detection

[PATCH] drm/i915: more virtual south bridge detection

[Gerd Hoffmann]

Commit "30c964a drm/i915: Detect virtual south bridge" detects and
handles the southbridge emulated by vmware esx.  Add the ich9 south
bridge emulated by 'qemu -M q35'.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 3 ++-
 drivers/gpu/drm/i915/i915_drv.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 760e0ce..a3c482e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -531,7 +531,8 @@ void intel_detect_pch(struct drm_device *dev)
 				dev_priv->pch_type = PCH_SPT;
 				DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
 				WARN_ON(!IS_SKYLAKE(dev));
-			} else if (id == INTEL_PCH_P2X_DEVICE_ID_TYPE) {
+			} else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
+				   (id == INTEL_PCH_QEMU_DEVICE_ID_TYPE)) {
 				dev_priv->pch_type = intel_virt_detect_pch(dev);
 			} else
 				continue;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 95bb27d..463ab22 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2604,6 +2604,7 @@ struct drm_i915_cmd_table {
 #define INTEL_PCH_SPT_DEVICE_ID_TYPE		0xA100
 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE		0x9D00
 #define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
+#define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */
 
 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
-- 
1.8.3.1

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Re: [Intel-gfx] [PATCH] drm/i915: more virtual south bridge detection

[Daniel Vetter]

On Thu, Nov 26, 2015 at 12:03:51PM +0100, Gerd Hoffmann wrote:
> Commit "30c964a drm/i915: Detect virtual south bridge" detects and
> handles the southbridge emulated by vmware esx.  Add the ich9 south
> bridge emulated by 'qemu -M q35'.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

Queued for -next, thanks for the patch.
-Daniel

> ---
>  drivers/gpu/drm/i915/i915_drv.c | 3 ++-
>  drivers/gpu/drm/i915/i915_drv.h | 1 +
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 760e0ce..a3c482e 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -531,7 +531,8 @@ void intel_detect_pch(struct drm_device *dev)
>  				dev_priv->pch_type = PCH_SPT;
>  				DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
>  				WARN_ON(!IS_SKYLAKE(dev));
> -			} else if (id == INTEL_PCH_P2X_DEVICE_ID_TYPE) {
> +			} else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
> +				   (id == INTEL_PCH_QEMU_DEVICE_ID_TYPE)) {
>  				dev_priv->pch_type = intel_virt_detect_pch(dev);
>  			} else
>  				continue;
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 95bb27d..463ab22 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2604,6 +2604,7 @@ struct drm_i915_cmd_table {
>  #define INTEL_PCH_SPT_DEVICE_ID_TYPE		0xA100
>  #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE		0x9D00
>  #define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
> +#define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */
>  
>  #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
>  #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
> -- 
> 1.8.3.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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