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Commit 428ccb21b740f603a6a1f08cbe6d935fb3177620

Authored by Daniel Vetter
1 parent 50a4c4a94d
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

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 <ben@bwidawsk.net>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Showing 2 changed files with 3 additions and 0 deletions Side-by-side Diff

drivers/char/agp/intel-gtt.c
Diff comments   View file @ 428ccb2
... ... @@ -680,6 +680,7 @@
680 680 iounmap(intel_private.registers);
681 681 return -ENOMEM;
682 682 }
  683 + intel_private.base.gtt = intel_private.gtt;
683 684  
684 685 global_cache_flush(); /* FIXME: ? */
685 686  
include/drm/intel-gtt.h
Diff comments   View file @ 428ccb2
... ... @@ -17,6 +17,8 @@
17 17 unsigned int do_idle_maps : 1;
18 18 /* Share the scratch page dma with ppgtts. */
19 19 dma_addr_t scratch_page_dma;
  20 + /* for ppgtt PDE access */
  21 + u32 __iomem *gtt;
20 22 } *intel_gtt_get(void);
21 23  
22 24 void intel_gtt_chipset_flush(void);