Re: [PATCH] drm/mgag200: Enable caching for SHMEM pages

2020-06-23 Thread Rong Chen
On 6/22/20 11:12 PM, Thomas Zimmermann wrote: Hi Am 22.06.20 um 17:00 schrieb Rong Chen: Hi Thomas, I tested the patch based on commit 24b806b0a1dd3, the regression Thanks! of phoronix-test-suite.glmark2.1024x768.score still exists: I expected that the test is related to drawing onto th

Re: [PATCH] drm/mgag200: Enable caching for SHMEM pages

2020-06-22 Thread Thomas Zimmermann
Hi Am 22.06.20 um 17:00 schrieb Rong Chen: > Hi Thomas, > > I tested the patch based on commit 24b806b0a1dd3, the regression Thanks! > of phoronix-test-suite.glmark2.1024x768.score still exists: I expected that the test is related to drawing onto the screen. Do you know what exactly it is test

Re: [PATCH] drm/mgag200: Enable caching for SHMEM pages

2020-06-22 Thread Rong Chen
Hi Thomas, I tested the patch based on commit 24b806b0a1dd3, the regression of phoronix-test-suite.glmark2.1024x768.score still exists: 1f58fcaf27cb7 drm/mgag200: Enable caching for SHMEM pages 2 2 2 24b806b0a1dd3 drm-tip: 2020y-06m-22d-07h-52m-06s UTC

[PATCH] drm/mgag200: Enable caching for SHMEM pages

2020-06-18 Thread Thomas Zimmermann
We've had reports about performance regressions after switching mgag200 from VRAM helpers to SHMEM helpers. SHMEM pages use writecombine caching by default, but can also use the platform's default page caching. Doing so improves the performance of I/O on the framebuffer. Mgag200's hardware does no