From 428ccb21b740f603a6a1f08cbe6d935fb3177620 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 9 Feb 2012 17:15:45 +0100 Subject: [PATCH] agp/intel-gtt: export the gtt pagetable iomapping We need this because ppgtt page directory entries need to be in the global gtt pagetable. Reviewed-by: Ben Widawsky Tested-by: Chris Wilson Tested-by: Eugeni Dodonov Reviewed-by: Eugeni Dodonov Signed-Off-by: Daniel Vetter --- drivers/char/agp/intel-gtt.c | 1 + include/drm/intel-gtt.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 0a305acb0374..5cf47ac2d401 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -680,6 +680,7 @@ static int intel_gtt_init(void) iounmap(intel_private.registers); return -ENOMEM; } + intel_private.base.gtt = intel_private.gtt; global_cache_flush(); /* FIXME: ? */ diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h index 6d4c77ac7d76..0a0001b9dc78 100644 --- a/include/drm/intel-gtt.h +++ b/include/drm/intel-gtt.h @@ -17,6 +17,8 @@ const struct intel_gtt { unsigned int do_idle_maps : 1; /* Share the scratch page dma with ppgtts. */ dma_addr_t scratch_page_dma; + /* for ppgtt PDE access */ + u32 __iomem *gtt; } *intel_gtt_get(void); void intel_gtt_chipset_flush(void); -- 2.39.5