Merge tag 'v3.7-rc2' into drm-intel-next-queued
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_overlay.c
index 830d0dd610e1276bc45f5636f77c324d08bf2a16..495625914e4a084f01f476d93524bed83db7ac42 100644 (file)
@@ -25,9 +25,8 @@
  *
  * Derived from Xorg ddx, xf86-video-intel, src/i830_video.c
  */
-#include "drmP.h"
-#include "drm.h"
-#include "i915_drm.h"
+#include <drm/drmP.h>
+#include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_reg.h"
 #include "intel_drv.h"
@@ -210,7 +209,6 @@ static void intel_overlay_unmap_regs(struct intel_overlay *overlay,
 }
 
 static int intel_overlay_do_wait_request(struct intel_overlay *overlay,
-                                        struct drm_i915_gem_request *request,
                                         void (*tail)(struct intel_overlay *))
 {
        struct drm_device *dev = overlay->dev;
@@ -219,12 +217,10 @@ static int intel_overlay_do_wait_request(struct intel_overlay *overlay,
        int ret;
 
        BUG_ON(overlay->last_flip_req);
-       ret = i915_add_request(ring, NULL, request);
-       if (ret) {
-           kfree(request);
-           return ret;
-       }
-       overlay->last_flip_req = request->seqno;
+       ret = i915_add_request(ring, NULL, &overlay->last_flip_req);
+       if (ret)
+               return ret;
+
        overlay->flip_tail = tail;
        ret = i915_wait_seqno(ring, overlay->last_flip_req);
        if (ret)
@@ -235,84 +231,22 @@ static int intel_overlay_do_wait_request(struct intel_overlay *overlay,
        return 0;
 }
 
-/* Workaround for i830 bug where pipe a must be enable to change control regs */
-static int
-i830_activate_pipe_a(struct drm_device *dev)
-{
-       drm_i915_private_t *dev_priv = dev->dev_private;
-       struct intel_crtc *crtc;
-       struct drm_crtc_helper_funcs *crtc_funcs;
-       struct drm_display_mode vesa_640x480 = {
-               DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
-                        752, 800, 0, 480, 489, 492, 525, 0,
-                        DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC)
-       }, *mode;
-
-       crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[0]);
-       if (crtc->dpms_mode == DRM_MODE_DPMS_ON)
-               return 0;
-
-       /* most i8xx have pipe a forced on, so don't trust dpms mode */
-       if (I915_READ(_PIPEACONF) & PIPECONF_ENABLE)
-               return 0;
-
-       crtc_funcs = crtc->base.helper_private;
-       if (crtc_funcs->dpms == NULL)
-               return 0;
-
-       DRM_DEBUG_DRIVER("Enabling pipe A in order to enable overlay\n");
-
-       mode = drm_mode_duplicate(dev, &vesa_640x480);
-
-       if (!drm_crtc_helper_set_mode(&crtc->base, mode,
-                                      crtc->base.x, crtc->base.y,
-                                      crtc->base.fb))
-               return 0;
-
-       crtc_funcs->dpms(&crtc->base, DRM_MODE_DPMS_ON);
-       return 1;
-}
-
-static void
-i830_deactivate_pipe_a(struct drm_device *dev)
-{
-       drm_i915_private_t *dev_priv = dev->dev_private;
-       struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[0];
-       struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
-
-       crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
-}
-
 /* overlay needs to be disable in OCMD reg */
 static int intel_overlay_on(struct intel_overlay *overlay)
 {
        struct drm_device *dev = overlay->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
-       struct drm_i915_gem_request *request;
-       int pipe_a_quirk = 0;
        int ret;
 
        BUG_ON(overlay->active);
        overlay->active = 1;
 
-       if (IS_I830(dev)) {
-               pipe_a_quirk = i830_activate_pipe_a(dev);
-               if (pipe_a_quirk < 0)
-                       return pipe_a_quirk;
-       }
-
-       request = kzalloc(sizeof(*request), GFP_KERNEL);
-       if (request == NULL) {
-               ret = -ENOMEM;
-               goto out;
-       }
+       WARN_ON(IS_I830(dev) && !(dev_priv->quirks & QUIRK_PIPEA_FORCE));
 
        ret = intel_ring_begin(ring, 4);
-       if (ret) {
-               kfree(request);
-               goto out;
-       }
+       if (ret)
+               return ret;
 
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_ON);
        intel_ring_emit(ring, overlay->flip_addr | OFC_UPDATE);
@@ -320,12 +254,7 @@ static int intel_overlay_on(struct intel_overlay *overlay)
        intel_ring_emit(ring, MI_NOOP);
        intel_ring_advance(ring);
 
-       ret = intel_overlay_do_wait_request(overlay, request, NULL);
-out:
-       if (pipe_a_quirk)
-               i830_deactivate_pipe_a(dev);
-
-       return ret;
+       return intel_overlay_do_wait_request(overlay, NULL);
 }
 
 /* overlay needs to be enabled in OCMD reg */
@@ -335,17 +264,12 @@ static int intel_overlay_continue(struct intel_overlay *overlay,
        struct drm_device *dev = overlay->dev;
        drm_i915_private_t *dev_priv = dev->dev_private;
        struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
-       struct drm_i915_gem_request *request;
        u32 flip_addr = overlay->flip_addr;
        u32 tmp;
        int ret;
 
        BUG_ON(!overlay->active);
 
-       request = kzalloc(sizeof(*request), GFP_KERNEL);
-       if (request == NULL)
-               return -ENOMEM;
-
        if (load_polyphase_filter)
                flip_addr |= OFC_UPDATE;
 
@@ -355,22 +279,14 @@ static int intel_overlay_continue(struct intel_overlay *overlay,
                DRM_DEBUG("overlay underrun, DOVSTA: %x\n", tmp);
 
        ret = intel_ring_begin(ring, 2);
-       if (ret) {
-               kfree(request);
+       if (ret)
                return ret;
-       }
+
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
        intel_ring_emit(ring, flip_addr);
        intel_ring_advance(ring);
 
-       ret = i915_add_request(ring, NULL, request);
-       if (ret) {
-               kfree(request);
-               return ret;
-       }
-
-       overlay->last_flip_req = request->seqno;
-       return 0;
+       return i915_add_request(ring, NULL, &overlay->last_flip_req);
 }
 
 static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay)
@@ -406,15 +322,10 @@ static int intel_overlay_off(struct intel_overlay *overlay)
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
        u32 flip_addr = overlay->flip_addr;
-       struct drm_i915_gem_request *request;
        int ret;
 
        BUG_ON(!overlay->active);
 
-       request = kzalloc(sizeof(*request), GFP_KERNEL);
-       if (request == NULL)
-               return -ENOMEM;
-
        /* According to intel docs the overlay hw may hang (when switching
         * off) without loading the filter coeffs. It is however unclear whether
         * this applies to the disabling of the overlay or to the switching off
@@ -422,10 +333,9 @@ static int intel_overlay_off(struct intel_overlay *overlay)
        flip_addr |= OFC_UPDATE;
 
        ret = intel_ring_begin(ring, 6);
-       if (ret) {
-               kfree(request);
+       if (ret)
                return ret;
-       }
+
        /* wait for overlay to go idle */
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
        intel_ring_emit(ring, flip_addr);
@@ -436,8 +346,7 @@ static int intel_overlay_off(struct intel_overlay *overlay)
        intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
        intel_ring_advance(ring);
 
-       return intel_overlay_do_wait_request(overlay, request,
-                                            intel_overlay_off_tail);
+       return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail);
 }
 
 /* recover from an interruption due to a signal
@@ -482,24 +391,16 @@ static int intel_overlay_release_old_vid(struct intel_overlay *overlay)
                return 0;
 
        if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) {
-               struct drm_i915_gem_request *request;
-
                /* synchronous slowpath */
-               request = kzalloc(sizeof(*request), GFP_KERNEL);
-               if (request == NULL)
-                       return -ENOMEM;
-
                ret = intel_ring_begin(ring, 2);
-               if (ret) {
-                       kfree(request);
+               if (ret)
                        return ret;
-               }
 
                intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
                intel_ring_emit(ring, MI_NOOP);
                intel_ring_advance(ring);
 
-               ret = intel_overlay_do_wait_request(overlay, request,
+               ret = intel_overlay_do_wait_request(overlay,
                                                    intel_overlay_release_old_vid_tail);
                if (ret)
                        return ret;
@@ -1439,7 +1340,7 @@ void intel_setup_overlay(struct drm_device *dev)
                }
                overlay->flip_addr = reg_bo->phys_obj->handle->busaddr;
        } else {
-               ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true);
+               ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true, false);
                if (ret) {
                        DRM_ERROR("failed to pin overlay register bo\n");
                        goto out_free_bo;
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