drm/amdgpu: Add H/W agnostic amdgpu <--> amdkfd interface
This patch adds an interface file between amdgpu and amdkfd. This
interface file is H/W agnostic, thus containing functions that
operate the same for any AMD APU/GPU H/W generation.
The functions in this interface mirror (some) of the functions in
radeon_kfd.c (the radeon<-->amdkfd interface file). The main functions
are:
- amdgpu_amdkfd_init - initialize the amdkfd module
- amdgpu_amdkfd_load_interface - load the H/W interface according to the
currently probed device
- amdgpu_amdkfd_device_probe - probe the device in amdkfd
- amdgpu_amdkfd_device_init - initialize the device in amdkfd
- amdgpu_amdkfd_interrupt - call the ISR of amdkfd
- amdgpu_amdkfd_suspend - suspend callback from amdgpu
- amdgpu_amdkfd_resume - resume callback from amdgpu
This patch also modifies the relevant amdgpu files, to use this new
interface.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index db5422e..fb44dd2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -24,6 +24,7 @@
#include <drm/drmP.h>
#include "amdgpu.h"
#include "amdgpu_ih.h"
+#include "amdgpu_amdkfd.h"
/**
* amdgpu_ih_ring_alloc - allocate memory for the IH ring
@@ -199,6 +200,12 @@
rmb();
while (adev->irq.ih.rptr != wptr) {
+ u32 ring_index = adev->irq.ih.rptr >> 2;
+
+ /* Before dispatching irq to IP blocks, send it to amdkfd */
+ amdgpu_amdkfd_interrupt(adev,
+ (const void *) &adev->irq.ih.ring[ring_index]);
+
amdgpu_ih_decode_iv(adev, &entry);
adev->irq.ih.rptr &= adev->irq.ih.ptr_mask;