From fb17f18993071cc230ec8ddb6dd3dd9932d2dba2 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 31 Aug 2011 07:42:53 +0000 Subject: vmwgfx: Restrict number of GMR pages to device limit When GMR2 is available, make sure we restrict the number of used GMR pages to the limit indicated by the device. This is done by failing a GMRID allocation if the total number of GMR pages exceeds the limit. As a result TTM will then start evicting buffers in GMR memory on a LRU basis until the allocation succeeds. Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 3d6a073e130b..77e77b2b9d80 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -322,6 +322,12 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) dev_priv->max_gmr_ids = vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS); } + if (dev_priv->capabilities & SVGA_CAP_GMR2) { + dev_priv->max_gmr_pages = + vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES); + dev_priv->memory_size = + vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE); + } dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE); dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE); @@ -338,6 +344,12 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) DRM_INFO("Max GMR descriptors is %u\n", (unsigned)dev_priv->max_gmr_descriptors); } + if (dev_priv->capabilities & SVGA_CAP_GMR2) { + DRM_INFO("Max number of GMR pages is %u\n", + (unsigned)dev_priv->max_gmr_pages); + DRM_INFO("Max dedicated hypervisor graphics memory is %u\n", + (unsigned)dev_priv->memory_size); + } DRM_INFO("VRAM at 0x%08x size is %u kiB\n", dev_priv->vram_start, dev_priv->vram_size / 1024); DRM_INFO("MMIO at 0x%08x size is %u kiB\n", -- cgit v1.2.3