diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 89 |
1 files changed, 21 insertions, 68 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f553ddfd..81a9059 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3983,54 +3983,6 @@ static void i830_update_wm(struct drm_device *dev) #define ILK_LP0_PLANE_LATENCY 700 #define ILK_LP0_CURSOR_LATENCY 1300 -static bool ironlake_compute_wm0(struct drm_device *dev, - int pipe, - const struct intel_watermark_params *display, - int display_latency_ns, - const struct intel_watermark_params *cursor, - int cursor_latency_ns, - int *plane_wm, - int *cursor_wm) -{ - struct drm_crtc *crtc; - int htotal, hdisplay, clock, pixel_size; - int line_time_us, line_count; - int entries, tlb_miss; - - crtc = intel_get_crtc_for_pipe(dev, pipe); - if (crtc->fb == NULL || !crtc->enabled) - return false; - - htotal = crtc->mode.htotal; - hdisplay = crtc->mode.hdisplay; - clock = crtc->mode.clock; - pixel_size = crtc->fb->bits_per_pixel / 8; - - /* Use the small buffer method to calculate plane watermark */ - entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000; - tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8; - if (tlb_miss > 0) - entries += tlb_miss; - entries = DIV_ROUND_UP(entries, display->cacheline_size); - *plane_wm = entries + display->guard_size; - if (*plane_wm > (int)display->max_wm) - *plane_wm = display->max_wm; - - /* Use the large buffer method to calculate cursor watermark */ - line_time_us = ((htotal * 1000) / clock); - line_count = (cursor_latency_ns / line_time_us + 1000) / 1000; - entries = line_count * 64 * pixel_size; - tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8; - if (tlb_miss > 0) - entries += tlb_miss; - entries = DIV_ROUND_UP(entries, cursor->cacheline_size); - *cursor_wm = entries + cursor->guard_size; - if (*cursor_wm > (int)cursor->max_wm) - *cursor_wm = (int)cursor->max_wm; - - return true; -} - /* * Check the wm result. * @@ -4139,12 +4091,12 @@ static void ironlake_update_wm(struct drm_device *dev) unsigned int enabled; enabled = 0; - if (ironlake_compute_wm0(dev, 0, - &ironlake_display_wm_info, - ILK_LP0_PLANE_LATENCY, - &ironlake_cursor_wm_info, - ILK_LP0_CURSOR_LATENCY, - &plane_wm, &cursor_wm)) { + if (g4x_compute_wm0(dev, 0, + &ironlake_display_wm_info, + ILK_LP0_PLANE_LATENCY, + &ironlake_cursor_wm_info, + ILK_LP0_CURSOR_LATENCY, + &plane_wm, &cursor_wm)) { I915_WRITE(WM0_PIPEA_ILK, (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); DRM_DEBUG_KMS("FIFO watermarks For pipe A -" @@ -4153,12 +4105,12 @@ static void ironlake_update_wm(struct drm_device *dev) enabled |= 1; } - if (ironlake_compute_wm0(dev, 1, - &ironlake_display_wm_info, - ILK_LP0_PLANE_LATENCY, - &ironlake_cursor_wm_info, - ILK_LP0_CURSOR_LATENCY, - &plane_wm, &cursor_wm)) { + if (g4x_compute_wm0(dev, 1, + &ironlake_display_wm_info, + ILK_LP0_PLANE_LATENCY, + &ironlake_cursor_wm_info, + ILK_LP0_CURSOR_LATENCY, + &plane_wm, &cursor_wm)) { I915_WRITE(WM0_PIPEB_ILK, (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); DRM_DEBUG_KMS("FIFO watermarks For pipe B -" @@ -4223,10 +4175,10 @@ static void sandybridge_update_wm(struct drm_device *dev) unsigned int enabled; enabled = 0; - if (ironlake_compute_wm0(dev, 0, - &sandybridge_display_wm_info, latency, - &sandybridge_cursor_wm_info, latency, - &plane_wm, &cursor_wm)) { + if (g4x_compute_wm0(dev, 0, + &sandybridge_display_wm_info, latency, + &sandybridge_cursor_wm_info, latency, + &plane_wm, &cursor_wm)) { I915_WRITE(WM0_PIPEA_ILK, (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); DRM_DEBUG_KMS("FIFO watermarks For pipe A -" @@ -4235,10 +4187,10 @@ static void sandybridge_update_wm(struct drm_device *dev) enabled |= 1; } - if (ironlake_compute_wm0(dev, 1, - &sandybridge_display_wm_info, latency, - &sandybridge_cursor_wm_info, latency, - &plane_wm, &cursor_wm)) { + if (g4x_compute_wm0(dev, 1, + &sandybridge_display_wm_info, latency, + &sandybridge_cursor_wm_info, latency, + &plane_wm, &cursor_wm)) { I915_WRITE(WM0_PIPEB_ILK, (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); DRM_DEBUG_KMS("FIFO watermarks For pipe B -" @@ -7675,6 +7627,7 @@ static void intel_init_display(struct drm_device *dev) dev_priv->display.update_wm = NULL; } else dev_priv->display.update_wm = pineview_update_wm; + dev_priv->display.init_clock_gating = gen3_init_clock_gating; } else if (IS_G4X(dev)) { dev_priv->display.update_wm = g4x_update_wm; dev_priv->display.init_clock_gating = g4x_init_clock_gating; |
