From 3f8bc370ac679a5fe5c098f30d3cf8e80f62a9f8 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Kristian=20H=C3=B8gsberg?= Date: Wed, 17 Dec 2008 22:14:59 -0500 Subject: [PATCH] drm/i915: Pin cursor bo and unpin old bo when setting cursor. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We also didn't track the cursor bo before and would leak a reference when the cursor image was change. Signed-off-by: Kristian Høgsberg Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/intel_display.c | 29 ++++++++++++++++++++-------- drivers/gpu/drm/i915/intel_drv.h | 1 + 2 files changed, 22 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e5c1c80d1f9..1204d26b50d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -986,19 +986,17 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, uint32_t base = (pipe == 0) ? CURABASE : CURBBASE; uint32_t temp; size_t addr; + int ret; DRM_DEBUG("\n"); /* if we want to turn off the cursor ignore width and height */ if (!handle) { DRM_DEBUG("cursor off\n"); - /* turn of the cursor */ - temp = 0; - temp |= CURSOR_MODE_DISABLE; - - I915_WRITE(control, temp); - I915_WRITE(base, 0); - return 0; + temp = CURSOR_MODE_DISABLE; + addr = 0; + bo = NULL; + goto finish; } /* Currently we only support 64x64 cursors */ @@ -1025,15 +1023,30 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, addr = obj_priv->gtt_offset; } - intel_crtc->cursor_addr = addr; + ret = i915_gem_object_pin(bo, PAGE_SIZE); + if (ret) { + DRM_ERROR("failed to pin cursor bo\n"); + drm_gem_object_unreference(bo); + return ret; + } + temp = 0; /* set the pipe for the cursor */ temp |= (pipe << 28); temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; + finish: I915_WRITE(control, temp); I915_WRITE(base, addr); + if (intel_crtc->cursor_bo) { + i915_gem_object_unpin(intel_crtc->cursor_bo); + drm_gem_object_unreference(intel_crtc->cursor_bo); + } + + intel_crtc->cursor_addr = addr; + intel_crtc->cursor_bo = bo; + return 0; } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 407edd5bf58..94981ee7b8b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -88,6 +88,7 @@ struct intel_crtc { struct drm_crtc base; int pipe; int plane; + struct drm_gem_object *cursor_bo; uint32_t cursor_addr; u8 lut_r[256], lut_g[256], lut_b[256]; int dpms_mode; -- 2.41.0