@@ -1332,7 +1332,7 @@ static void i915_setup_compression(struct drm_device *dev, int size)
drm_mm_put_block(compressed_fb);
}
- if (!IS_GM45(dev)) {
+ if (!(IS_GM45(dev) || IS_IRONLAKE_M(dev))) {
compressed_llb = drm_mm_search_free(&dev_priv->vram, 4096,
4096, 0);
if (!compressed_llb) {
@@ -1355,8 +1355,10 @@ static void i915_setup_compression(struct drm_device *dev, int size)
}
dev_priv->cfb_size = size;
-
- if (IS_GM45(dev)) {
+ if (IS_IRONLAKE_M(dev)) {
+ ironlake_disable_fbc(dev);
+ I915_WRITE(ILK_DPFC_CB_BASE, compressed_fb->start);
+ } else if (IS_GM45(dev)) {
g4x_disable_fbc(dev);
I915_WRITE(DPFC_CB_BASE, compressed_fb->start);
} else {
@@ -1365,7 +1367,7 @@ static void i915_setup_compression(struct drm_device *dev, int size)
I915_WRITE(FBC_LL_BASE, ll_base);
}
- DRM_DEBUG("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base,
+ DRM_DEBUG_KMS("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base,
ll_base, size >> 20);
}
@@ -133,7 +133,7 @@ const static struct intel_device_info intel_ironlake_d_info = {
const static struct intel_device_info intel_ironlake_m_info = {
.is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
- .need_gfx_hws = 1, .has_rc6 = 1,
+ .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
.has_hotplug = 1,
};
@@ -989,6 +989,7 @@ extern void intel_modeset_cleanup(struct drm_device *dev);
extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
extern void i8xx_disable_fbc(struct drm_device *dev);
extern void g4x_disable_fbc(struct drm_device *dev);
+extern void ironlake_disable_fbc(struct drm_device *dev);
/**
* Lock test for when it's just for synchronization of ring access.
@@ -421,6 +421,26 @@
#define DPFC_CHICKEN 0x3224
#define DPFC_HT_MODIFY (1<<31)
+/* Framebuffer compression for Ironlake */
+#define ILK_DPFC_CB_BASE 0x43200
+#define ILK_DPFC_CONTROL 0x43208
+/* The bit 28-8 is reserved */
+#define DPFC_RESERVED (0x1FFFFF00)
+#define ILK_DPFC_RECOMP_CTL 0x4320c
+#define ILK_DPFC_STATUS 0x43210
+#define ILK_DPFC_FENCE_YOFF 0x43218
+#define ILK_DPFC_CHICKEN 0x43224
+#define ILK_FBC_RT_BASE 0x2128
+#define ILK_FBC_RT_VALID (1<<0)
+
+#define ILK_DISPLAY_CHICKEN1 0x42000
+#define ILK_FBCQ_DIS (1<<22)
+#define ILK_DISPLAY_CHICKEN2 0x42004
+/* According to the spec this bit 22 of 0x420004 should be enabled */
+#define ILK_DPARB_GATE (1<<22)
+#define ILK_DSPCLK_GATE 0x42020
+/* This bit 7 of 0x42020 should be enabled to enable the FBC */
+#define ILK_CLK_FBC (1<<7)
/*
* GPIO regs
*/
@@ -601,7 +601,9 @@ void i915_save_display(struct drm_device *dev)
/* FIXME: save TV & SDVO state */
/* FBC state */
- if (IS_GM45(dev)) {
+ if (IS_IRONLAKE_M(dev))
+ dev_priv->saveDPFC_CB_BASE = I915_READ(ILK_DPFC_CB_BASE);
+ else if (IS_GM45(dev)) {
dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE);
} else {
dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
@@ -703,7 +705,10 @@ void i915_restore_display(struct drm_device *dev)
/* FIXME: restore TV & SDVO state */
/* FBC info */
- if (IS_GM45(dev)) {
+ if (IS_IRONLAKE_M(dev)) {
+ ironlake_disable_fbc(dev);
+ I915_WRITE(ILK_DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE);
+ } else if (IS_GM45(dev)) {
g4x_disable_fbc(dev);
I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE);
} else {
@@ -1130,6 +1130,68 @@ static bool g4x_fbc_enabled(struct drm_crtc *crtc)
return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN;
}
+static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *fb = crtc->fb;
+ struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+ struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA :
+ DPFC_CTL_PLANEB);
+ unsigned long stall_watermark = 200;
+ u32 dpfc_ctl;
+
+ dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
+ dev_priv->cfb_fence = obj_priv->fence_reg;
+ dev_priv->cfb_plane = intel_crtc->plane;
+
+ dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
+ dpfc_ctl &= DPFC_RESERVED;
+ dpfc_ctl |= plane | DPFC_CTL_LIMIT_1X;
+ if (obj_priv->tiling_mode != I915_TILING_NONE) {
+ dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence;
+ I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY);
+ } else {
+ I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY);
+ }
+
+ I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);
+ I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
+ (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
+ (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
+ I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y);
+ I915_WRITE(ILK_FBC_RT_BASE, obj_priv->gtt_offset | ILK_FBC_RT_VALID);
+ /* enable it... */
+ I915_WRITE(ILK_DPFC_CONTROL, I915_READ(ILK_DPFC_CONTROL) |
+ DPFC_CTL_EN);
+
+ DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+}
+
+void ironlake_disable_fbc(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 dpfc_ctl;
+
+ /* Disable compression */
+ dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
+ dpfc_ctl &= ~DPFC_CTL_EN;
+ I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);
+ intel_wait_for_vblank(dev);
+
+ DRM_DEBUG_KMS("disabled FBC\n");
+}
+
+static bool ironlake_fbc_enabled(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN;
+}
+
/**
* intel_update_fbc - enable/disable FBC as needed
* @crtc: CRTC to point the compressor at
@@ -1756,6 +1818,8 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
intel_crtc_load_lut(crtc);
+ intel_update_fbc(crtc, &crtc->mode);
+
break;
case DRM_MODE_DPMS_OFF:
DRM_DEBUG_KMS("crtc %d dpms off\n", pipe);
@@ -1770,6 +1834,10 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
I915_READ(dspbase_reg);
}
+ if (dev_priv->cfb_plane == plane &&
+ dev_priv->display.disable_fbc)
+ dev_priv->display.disable_fbc(dev);
+
i915_disable_vga(dev);
/* disable cpu pipe, disable after all planes disabled */
@@ -4716,6 +4784,24 @@ void intel_init_clock_gating(struct drm_device *dev)
* specs, but enable as much else as we can.
*/
if (HAS_PCH_SPLIT(dev)) {
+ /*
+ * According to the spec the following bits should be set in
+ * order to enable FBC
+ * The bit 22 of 0x42000
+ * The bit 22 of 0x42004
+ * The bit 7 of 0x42020
+ */
+ if (IS_IRONLAKE_M(dev)) {
+ I915_WRITE(ILK_DISPLAY_CHICKEN1,
+ (I915_READ(ILK_DISPLAY_CHICKEN1) |
+ ILK_FBCQ_DIS));
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ (I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_DPARB_GATE));
+ I915_WRITE(ILK_DSPCLK_GATE,
+ (I915_READ(ILK_DSPCLK_GATE) |
+ ILK_CLK_FBC));
+ }
return;
} else if (IS_G4X(dev)) {
uint32_t dspclk_gate;
@@ -4795,7 +4881,11 @@ static void intel_init_display(struct drm_device *dev)
/* Only mobile has FBC, leave pointers NULL for other chips */
if (IS_MOBILE(dev)) {
- if (IS_GM45(dev)) {
+ if (IS_IRONLAKE_M(dev)) {
+ dev_priv->display.fbc_enabled = ironlake_fbc_enabled;
+ dev_priv->display.enable_fbc = ironlake_enable_fbc;
+ dev_priv->display.disable_fbc = ironlake_disable_fbc;
+ } else if (IS_GM45(dev)) {
dev_priv->display.fbc_enabled = g4x_fbc_enabled;
dev_priv->display.enable_fbc = g4x_enable_fbc;
dev_priv->display.disable_fbc = g4x_disable_fbc;