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path: root/drivers/gpu/drm/i915/i915_drv.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c61
1 files changed, 58 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index c34a8dd31d02..8c4fcbb8a4cb 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -188,6 +188,21 @@ static const struct intel_device_info intel_sandybridge_m_info = {
.has_blt_ring = 1,
};
+static const struct intel_device_info intel_ivybridge_d_info = {
+ .is_ivybridge = 1, .gen = 7,
+ .need_gfx_hws = 1, .has_hotplug = 1,
+ .has_bsd_ring = 1,
+ .has_blt_ring = 1,
+};
+
+static const struct intel_device_info intel_ivybridge_m_info = {
+ .is_ivybridge = 1, .gen = 7, .is_mobile = 1,
+ .need_gfx_hws = 1, .has_hotplug = 1,
+ .has_fbc = 0, /* FBC is not enabled on Ivybridge mobile yet */
+ .has_bsd_ring = 1,
+ .has_blt_ring = 1,
+};
+
static const struct pci_device_id pciidlist[] = { /* aka */
INTEL_VGA_DEVICE(0x3577, &intel_i830_info), /* I830_M */
INTEL_VGA_DEVICE(0x2562, &intel_845g_info), /* 845_G */
@@ -227,6 +242,11 @@ static const struct pci_device_id pciidlist[] = { /* aka */
INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
+ INTEL_VGA_DEVICE(0x0156, &intel_ivybridge_m_info), /* GT1 mobile */
+ INTEL_VGA_DEVICE(0x0166, &intel_ivybridge_m_info), /* GT2 mobile */
+ INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */
+ INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */
+ INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */
{0, 0, 0}
};
@@ -235,7 +255,9 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
#endif
#define INTEL_PCH_DEVICE_ID_MASK 0xff00
+#define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
+#define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
void intel_detect_pch (struct drm_device *dev)
{
@@ -254,16 +276,23 @@ void intel_detect_pch (struct drm_device *dev)
int id;
id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
- if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
+ if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) {
+ dev_priv->pch_type = PCH_IBX;
+ DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
+ } else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_CPT;
DRM_DEBUG_KMS("Found CougarPoint PCH\n");
+ } else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) {
+ /* PantherPoint is CPT compatible */
+ dev_priv->pch_type = PCH_CPT;
+ DRM_DEBUG_KMS("Found PatherPoint PCH\n");
}
}
pci_dev_put(pch);
}
}
-void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
+static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
{
int count;
@@ -279,12 +308,38 @@ void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
udelay(10);
}
-void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
+/*
+ * Generally this is called implicitly by the register read function. However,
+ * if some sequence requires the GT to not power down then this function should
+ * be called at the beginning of the sequence followed by a call to
+ * gen6_gt_force_wake_put() at the end of the sequence.
+ */
+void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
+{
+ WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
+
+ /* Forcewake is atomic in case we get in here without the lock */
+ if (atomic_add_return(1, &dev_priv->forcewake_count) == 1)
+ __gen6_gt_force_wake_get(dev_priv);
+}
+
+static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE, 0);
POSTING_READ(FORCEWAKE);
}
+/*
+ * see gen6_gt_force_wake_get()
+ */
+void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
+{
+ WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
+
+ if (atomic_dec_and_test(&dev_priv->forcewake_count))
+ __gen6_gt_force_wake_put(dev_priv);
+}
+
void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
{
int loop = 500;
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