diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-02-09 17:15:44 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-02-09 21:23:18 +0100 |
| commit | 50a4c4a94d24fe13167e3ab1dc1486623369c31a (patch) | |
| tree | 6499c1453002d9b61dd5ab9d9d33ab2cb648111f | |
| parent | 7e3b8737e719c4de7dd79b096b80ece444b2f0ba (diff) | |
agp/intel-gtt: export the scratch page dma address
To implement a PPGTT for drm/i915 that fully aliases the GTT, we also
need to properly alias the scratch page.
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>
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 9 | ||||
| -rw-r--r-- | include/drm/intel-gtt.h | 2 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index c92424ca1a55..0a305acb0374 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -76,7 +76,6 @@ static struct _intel_private { struct resource ifp_resource; int resource_valid; struct page *scratch_page; - dma_addr_t scratch_page_dma; } intel_private; #define INTEL_GTT_GEN intel_private.driver->gen @@ -306,9 +305,9 @@ static int intel_gtt_setup_scratch_page(void) if (pci_dma_mapping_error(intel_private.pcidev, dma_addr)) return -EINVAL; - intel_private.scratch_page_dma = dma_addr; + intel_private.base.scratch_page_dma = dma_addr; } else - intel_private.scratch_page_dma = page_to_phys(page); + intel_private.base.scratch_page_dma = page_to_phys(page); intel_private.scratch_page = page; @@ -631,7 +630,7 @@ static unsigned int intel_gtt_mappable_entries(void) static void intel_gtt_teardown_scratch_page(void) { set_pages_wb(intel_private.scratch_page, 1); - pci_unmap_page(intel_private.pcidev, intel_private.scratch_page_dma, + pci_unmap_page(intel_private.pcidev, intel_private.base.scratch_page_dma, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); put_page(intel_private.scratch_page); __free_page(intel_private.scratch_page); @@ -975,7 +974,7 @@ void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries) unsigned int i; for (i = first_entry; i < (first_entry + num_entries); i++) { - intel_private.driver->write_entry(intel_private.scratch_page_dma, + intel_private.driver->write_entry(intel_private.base.scratch_page_dma, i, 0); } readl(intel_private.gtt+i-1); diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h index b174620cc9b3..6d4c77ac7d76 100644 --- a/include/drm/intel-gtt.h +++ b/include/drm/intel-gtt.h @@ -15,6 +15,8 @@ const struct intel_gtt { unsigned int needs_dmar : 1; /* Whether we idle the gpu before mapping/unmapping */ unsigned int do_idle_maps : 1; + /* Share the scratch page dma with ppgtts. */ + dma_addr_t scratch_page_dma; } *intel_gtt_get(void); void intel_gtt_chipset_flush(void); |