From 810085ddb7b76c1cc5059a1feb3b1250eceacf23 Mon Sep 17 00:00:00 2001 From: Eric Huang Date: Wed, 2 Jun 2021 15:05:20 -0400 Subject: drm/amdgpu: Don't flush/invalidate HDP for APUs and A+A MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Integrate two generic functions to determine if HDP flush is needed for all Asics. Signed-off-by: Eric Huang Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 31 ++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 0585442b000e..f6e10653d828 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -313,9 +313,9 @@ void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos, if (write) { memcpy_toio(addr, buf, count); mb(); - amdgpu_asic_flush_hdp(adev, NULL); + amdgpu_device_flush_hdp(adev, NULL); } else { - amdgpu_asic_invalidate_hdp(adev, NULL); + amdgpu_device_invalidate_hdp(adev, NULL); mb(); memcpy_fromio(buf, addr, count); } @@ -5475,4 +5475,31 @@ bool amdgpu_device_load_pci_state(struct pci_dev *pdev) return true; } +void amdgpu_device_flush_hdp(struct amdgpu_device *adev, + struct amdgpu_ring *ring) +{ +#ifdef CONFIG_X86_64 + if (adev->flags & AMD_IS_APU) + return; +#endif + if (adev->gmc.xgmi.connected_to_cpu) + return; + + if (ring && ring->funcs->emit_hdp_flush) + amdgpu_ring_emit_hdp_flush(ring); + else + amdgpu_asic_flush_hdp(adev, ring); +} +void amdgpu_device_invalidate_hdp(struct amdgpu_device *adev, + struct amdgpu_ring *ring) +{ +#ifdef CONFIG_X86_64 + if (adev->flags & AMD_IS_APU) + return; +#endif + if (adev->gmc.xgmi.connected_to_cpu) + return; + + amdgpu_asic_invalidate_hdp(adev, ring); +} -- cgit