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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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744583ecc3
Split virtqueue_kick() call into virtqueue_kick_prepare(), which requires serialization, and virtqueue_notify(), which does not. Move the virtqueue_notify() call out of the critical section protected by the queue lock. This avoids triggering a vmexit while holding the lock and thereby fixes a rather bad spinlock contention. Suggested-by: Chia-I Wu <olvaffe@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Chia-I Wu <olvaffe@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/20190813082509.29324-3-kraxel@redhat.com |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| virtgpu_debugfs.c | ||
| virtgpu_display.c | ||
| virtgpu_drv.c | ||
| virtgpu_drv.h | ||
| virtgpu_fence.c | ||
| virtgpu_gem.c | ||
| virtgpu_ioctl.c | ||
| virtgpu_kms.c | ||
| virtgpu_object.c | ||
| virtgpu_plane.c | ||
| virtgpu_prime.c | ||
| virtgpu_trace_points.c | ||
| virtgpu_trace.h | ||
| virtgpu_ttm.c | ||
| virtgpu_vq.c | ||