On 7/16/2015 10:33 AM, Michel Thierry wrote:
The insert_entries function was the function used to write PTEs. For the PPGTT it was "hardcoded" to only understand two level page tables, which was the case for GEN7. We can reuse this for 4 level page tables, and remove the concept of insert_entries, which was never viable past 2 level page tables anyway, but it requires a bit of rework to make the function a bit more generic. This patch begins the generalization work, and it will be heavily used upon when the 48b code is complete. The patch series attempts to make each function which touches a part of code specific to the page table level and here is no exception. v2: Rebase after Mika's ppgtt cleanup / scratch merge patch series. v3: Rebase after final merged version of Mika's ppgtt/scratch patches. Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx> Signed-off-by: Michel Thierry <michel.thierry@xxxxxxxxx> (v2) --- drivers/gpu/drm/i915/i915_gem_gtt.c | 52 +++++++++++++++++++++++++++---------- 1 file changed, 39 insertions(+), 13 deletions(-)
Akash pointed out that this change doesn't depend of 48-bit ppgtt, so it should be moved earlier in the patchset (before PML4 is introduced).
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