"Use panel (LVDS/eDP) downclocking for power savings "
"(default: false)");
+int i915_lvds_channel_mode __read_mostly;
+module_param_named(lvds_channel_mode, i915_lvds_channel_mode, int, 0600);
+MODULE_PARM_DESC(lvds_channel_mode,
+ "Specify LVDS channel mode "
+ "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
+
int i915_panel_use_ssc __read_mostly = -1;
module_param_named(lvds_use_ssc, i915_panel_use_ssc, int, 0600);
MODULE_PARM_DESC(lvds_use_ssc,
int i915_vbt_sdvo_panel_type __read_mostly = -1;
module_param_named(vbt_sdvo_panel_type, i915_vbt_sdvo_panel_type, int, 0600);
MODULE_PARM_DESC(vbt_sdvo_panel_type,
- "Override selection of SDVO panel mode in the VBT "
- "(default: auto)");
+ "Override/Ignore selection of SDVO panel mode in the VBT "
+ "(-2=ignore, -1=auto [default], index in VBT BIOS table)");
static bool i915_try_reset __read_mostly = true;
module_param_named(reset, i915_try_reset, bool, 0600);
"WARNING: Disabling this can cause system wide hangs. "
"(default: true)");
+bool i915_enable_ppgtt __read_mostly = 1;
+module_param_named(i915_enable_ppgtt, i915_enable_ppgtt, bool, 0600);
+MODULE_PARM_DESC(i915_enable_ppgtt,
+ "Enable PPGTT (default: true)");
+
static struct drm_driver driver;
extern int intel_agp_enabled;
static const struct intel_device_info intel_ironlake_d_info = {
.gen = 5,
- .need_gfx_hws = 1, .has_pipe_cxsr = 1, .has_hotplug = 1,
+ .need_gfx_hws = 1, .has_hotplug = 1,
.has_bsd_ring = 1,
+ .has_pch_split = 1,
};
static const struct intel_device_info intel_ironlake_m_info = {
.need_gfx_hws = 1, .has_hotplug = 1,
.has_fbc = 1,
.has_bsd_ring = 1,
+ .has_pch_split = 1,
};
static const struct intel_device_info intel_sandybridge_d_info = {
.need_gfx_hws = 1, .has_hotplug = 1,
.has_bsd_ring = 1,
.has_blt_ring = 1,
+ .has_llc = 1,
+ .has_pch_split = 1,
};
static const struct intel_device_info intel_sandybridge_m_info = {
.has_fbc = 1,
.has_bsd_ring = 1,
.has_blt_ring = 1,
+ .has_llc = 1,
+ .has_pch_split = 1,
};
static const struct intel_device_info intel_ivybridge_d_info = {
.need_gfx_hws = 1, .has_hotplug = 1,
.has_bsd_ring = 1,
.has_blt_ring = 1,
+ .has_llc = 1,
+ .has_pch_split = 1,
};
static const struct intel_device_info intel_ivybridge_m_info = {
.has_fbc = 0, /* FBC is not enabled on Ivybridge mobile yet */
.has_bsd_ring = 1,
.has_blt_ring = 1,
+ .has_llc = 1,
+ .has_pch_split = 1,
+};
+
+static const struct intel_device_info intel_valleyview_m_info = {
+ .gen = 7, .is_mobile = 1,
+ .need_gfx_hws = 1, .has_hotplug = 1,
+ .has_fbc = 0,
+ .has_bsd_ring = 1,
+ .has_blt_ring = 1,
+ .is_valleyview = 1,
+};
+
+static const struct intel_device_info intel_valleyview_d_info = {
+ .gen = 7,
+ .need_gfx_hws = 1, .has_hotplug = 1,
+ .has_fbc = 0,
+ .has_bsd_ring = 1,
+ .has_blt_ring = 1,
+ .is_valleyview = 1,
};
static const struct pci_device_id pciidlist[] = { /* aka */
spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags);
}
+static void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv)
+{
+ u32 gtfifodbg;
+ gtfifodbg = I915_READ_NOTRACE(GTFIFODBG);
+ if (WARN(gtfifodbg & GT_FIFO_CPU_ERROR_MASK,
+ "MMIO read or write has been dropped %x\n", gtfifodbg))
+ I915_WRITE_NOTRACE(GTFIFODBG, GT_FIFO_CPU_ERROR_MASK);
+}
+
void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE, 0);
- POSTING_READ(FORCEWAKE);
+ /* The below doubles as a POSTING_READ */
+ gen6_gt_check_fifodbg(dev_priv);
}
void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 0);
- POSTING_READ(FORCEWAKE_MT);
+ /* The below doubles as a POSTING_READ */
+ gen6_gt_check_fifodbg(dev_priv);
}
/*
spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags);
}
-void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
+int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
{
+ int ret = 0;
+
if (dev_priv->gt_fifo_count < GT_FIFO_NUM_RESERVED_ENTRIES) {
int loop = 500;
u32 fifo = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES);
udelay(10);
fifo = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES);
}
- WARN_ON(loop < 0 && fifo <= GT_FIFO_NUM_RESERVED_ENTRIES);
+ if (WARN_ON(loop < 0 && fifo <= GT_FIFO_NUM_RESERVED_ENTRIES))
+ ++ret;
dev_priv->gt_fifo_count = fifo;
}
dev_priv->gt_fifo_count--;
+
+ return ret;
+}
+
+void vlv_force_wake_get(struct drm_i915_private *dev_priv)
+{
+ int count;
+
+ count = 0;
+
+ /* Already awake? */
+ if ((I915_READ(0x130094) & 0xa1) == 0xa1)
+ return;
+
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffffffff);
+ POSTING_READ(FORCEWAKE_VLV);
+
+ count = 0;
+ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1) == 0)
+ udelay(10);
+}
+
+void vlv_force_wake_put(struct drm_i915_private *dev_priv)
+{
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffff0000);
+ /* FIXME: confirm VLV behavior with Punit folks */
+ POSTING_READ(FORCEWAKE_VLV);
}
static int i915_drm_freeze(struct drm_device *dev)
mutex_lock(&dev->struct_mutex);
dev_priv->mm.suspended = 0;
- error = i915_gem_init_ringbuffer(dev);
+ error = i915_gem_init_hw(dev);
mutex_unlock(&dev->struct_mutex);
if (HAS_PCH_SPLIT(dev))
static int gen6_do_reset(struct drm_device *dev, u8 flags)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+ unsigned long irqflags;
+
+ /* Hold gt_lock across reset to prevent any register access
+ * with forcewake not set correctly
+ */
+ spin_lock_irqsave(&dev_priv->gt_lock, irqflags);
+
+ /* Reset the chip */
- I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL);
- return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500);
+ /* GEN6_GDRST is not in the gt power well, no need to check
+ * for fifo space for the write or forcewake the chip for
+ * the read
+ */
+ I915_WRITE_NOTRACE(GEN6_GDRST, GEN6_GRDOM_FULL);
+
+ /* Spin waiting for the device to ack the reset request */
+ ret = wait_for((I915_READ_NOTRACE(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500);
+
+ /* If reset with a user forcewake, try to restore, otherwise turn it off */
+ if (dev_priv->forcewake_count)
+ dev_priv->display.force_wake_get(dev_priv);
+ else
+ dev_priv->display.force_wake_put(dev_priv);
+
+ /* Restore fifo count */
+ dev_priv->gt_fifo_count = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES);
+
+ spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags);
+ return ret;
}
/**
- * i965_reset - reset chip after a hang
+ * i915_reset - reset chip after a hang
* @dev: drm device to reset
* @flags: reset domains
*
* need to
*/
bool need_display = true;
- unsigned long irqflags;
int ret;
if (!i915_try_reset)
case 7:
case 6:
ret = gen6_do_reset(dev, flags);
- /* If reset with a user forcewake, try to restore */
- spin_lock_irqsave(&dev_priv->gt_lock, irqflags);
- if (dev_priv->forcewake_count)
- dev_priv->display.force_wake_get(dev_priv);
- spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags);
break;
case 5:
ret = ironlake_do_reset(dev, flags);
!dev_priv->mm.suspended) {
dev_priv->mm.suspended = 0;
+ i915_gem_init_swizzling(dev);
+
dev_priv->ring[RCS].init(&dev_priv->ring[RCS]);
if (HAS_BSD(dev))
dev_priv->ring[VCS].init(&dev_priv->ring[VCS]);
if (HAS_BLT(dev))
dev_priv->ring[BCS].init(&dev_priv->ring[BCS]);
+ i915_gem_init_ppgtt(dev);
+
mutex_unlock(&dev->struct_mutex);
drm_irq_uninstall(dev);
drm_mode_config_reset(dev);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
+/* We give fast paths for the really cool registers */
+#define NEEDS_FORCE_WAKE(dev_priv, reg) \
+ (((dev_priv)->info->gen >= 6) && \
+ ((reg) < 0x40000) && \
+ ((reg) != FORCEWAKE)) && \
+ (!IS_VALLEYVIEW((dev_priv)->dev))
+
#define __i915_read(x, y) \
u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
u##x val = 0; \
if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
- gen6_gt_force_wake_get(dev_priv); \
+ unsigned long irqflags; \
+ spin_lock_irqsave(&dev_priv->gt_lock, irqflags); \
+ if (dev_priv->forcewake_count == 0) \
+ dev_priv->display.force_wake_get(dev_priv); \
val = read##y(dev_priv->regs + reg); \
- gen6_gt_force_wake_put(dev_priv); \
+ if (dev_priv->forcewake_count == 0) \
+ dev_priv->display.force_wake_put(dev_priv); \
+ spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); \
} else { \
val = read##y(dev_priv->regs + reg); \
} \
#define __i915_write(x, y) \
void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
+ u32 __fifo_ret = 0; \
trace_i915_reg_rw(true, reg, val, sizeof(val)); \
if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
- __gen6_gt_wait_for_fifo(dev_priv); \
+ __fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \
} \
write##y(val, dev_priv->regs + reg); \
+ if (unlikely(__fifo_ret)) { \
+ gen6_gt_check_fifodbg(dev_priv); \
+ } \
}
__i915_write(8, b)
__i915_write(16, w)
projects / deliverable / linux.git / blobdiff