[PATCH v2 06/17] drm/vmwgfx: Add a new enum for SM5 graphics context capability

[Roland Scheidegger]

From: Deepak Rawat <drawat.fl...@gmail.com>

A new enum to represent new SM5 graphics context capability in vmwgfx.

v2: use new correct cap bits (merged several later commits into it).

Signed-off-by: Deepak Rawat <drawat.fl...@gmail.com>
Signed-off-by: Thomas Hellström (VMware) <thomas...@shipmail.org>
Reviewed-by: Roland Scheidegger <srol...@vmware.com>
Signed-off-by: Roland Scheidegger <srol...@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 11 +++++++++++
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 13 +++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 5277b9832d58..b55bd3b5f5cd 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -290,6 +290,8 @@ static void vmw_print_capabilities2(uint32_t capabilities2)
                DRM_INFO("  Grow oTable.\n");
        if (capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY)
                DRM_INFO("  IntraSurface copy.\n");
+       if (capabilities2 & SVGA_CAP2_DX3)
+               DRM_INFO("  DX3.\n");
 }
 
 static void vmw_print_capabilities(uint32_t capabilities)
@@ -900,6 +902,13 @@ static int vmw_driver_load(struct drm_device *dev, 
unsigned long chipset)
 
                if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
                        dev_priv->sm_type = VMW_SM_4_1;
+
+               if (has_sm4_1_context(dev_priv) &&
+                   (dev_priv->capabilities2 & SVGA_CAP2_DX3)) {
+                       vmw_write(dev_priv, SVGA_REG_DEV_CAP, 
SVGA3D_DEVCAP_SM5);
+                       if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
+                               dev_priv->sm_type = VMW_SM_5;
+               }
        }
 
        ret = vmw_kms_init(dev_priv);
@@ -913,6 +922,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned 
long chipset)
 
        DRM_INFO("Atomic: %s\n", (dev->driver->driver_features & DRIVER_ATOMIC)
                 ? "yes." : "no.");
+       if (dev_priv->sm_type == VMW_SM_5)
+               DRM_INFO("SM5 support available.\n");
        if (dev_priv->sm_type == VMW_SM_4_1)
                DRM_INFO("SM4_1 support available.\n");
        if (dev_priv->sm_type == VMW_SM_4)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 243731813887..262e57623df4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -446,12 +446,14 @@ enum {
  * @VMW_SM_LEGACY: Pre DX context.
  * @VMW_SM_4: Context support upto SM4.
  * @VMW_SM_4_1: Context support upto SM4_1.
+ * @VMW_SM_5: Context support up to SM5.
  * @VMW_SM_MAX: Should be the last.
  */
 enum vmw_sm_type {
        VMW_SM_LEGACY = 0,
        VMW_SM_4,
        VMW_SM_4_1,
+       VMW_SM_5,
        VMW_SM_MAX
 };
 
@@ -684,6 +686,17 @@ static inline bool has_sm4_1_context(const struct 
vmw_private *dev_priv)
        return (dev_priv->sm_type >= VMW_SM_4_1);
 }
 
+/**
+ * has_sm5_context - Does the device support SM5 context.
+ * @dev_priv: Device private.
+ *
+ * Return: Bool value if device support SM5 context or not.
+ */
+static inline bool has_sm5_context(const struct vmw_private *dev_priv)
+{
+       return (dev_priv->sm_type >= VMW_SM_5);
+}
+
 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 
-- 
2.17.1

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