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| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2015-06-25 18:35:06 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-06-26 10:50:52 +0200 |
| commit | d852c7bf902aa36f37b6fd0bb1147c922e7bd0fb (patch) | |
| tree | bf86406df2cd1c9c310b014e0a0f219155d7f72c /drivers/gpu/drm/i915/i915_gem_gtt.h | |
| parent | c44ef60e437019b8ca1dab8b4d2e8761fd4ce1e9 (diff) | |
| download | lwn-d852c7bf902aa36f37b6fd0bb1147c922e7bd0fb.tar.gz lwn-d852c7bf902aa36f37b6fd0bb1147c922e7bd0fb.zip | |
drm/i915/gtt: Introduce i915_page_dir_dma_addr
The legacy mode mm switch and the execlist context assignment
needs dma address for the page directories.
Introduce a function that encapsulates the scratch_pd dma
fallback if no pd is found.
v2: Rebase, s/ring/req
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 600eec00a1f4..f368c7155223 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -470,6 +470,14 @@ static inline size_t gen8_pte_count(uint64_t address, uint64_t length) return i915_pte_count(address, length, GEN8_PDE_SHIFT); } +static inline dma_addr_t +i915_page_dir_dma_addr(const struct i915_hw_ppgtt *ppgtt, const unsigned n) +{ + return test_bit(n, ppgtt->pdp.used_pdpes) ? + ppgtt->pdp.page_directory[n]->daddr : + ppgtt->scratch_pd->daddr; +} + int i915_gem_gtt_init(struct drm_device *dev); void i915_gem_init_global_gtt(struct drm_device *dev); void i915_global_gtt_cleanup(struct drm_device *dev); |