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authorStephen Boyd <sboyd@codeaurora.org>2015-10-02 11:15:13 -0700
committerStephen Boyd <sboyd@codeaurora.org>2015-10-02 11:22:23 -0700
commit9f30a04d768f64280dc0c40b730746e82f298d88 (patch)
treee112853eb73627ed7b9a2ef8e4feab6685a0200e /drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
parent9e294bf88a583825a413df408b9fe9e658fb93ac (diff)
parent7aba4f5201d1b7b3ddb0b03883d9edf69851ddad (diff)
Merge branch 'for-4.3-rc/ti-clk-fixes' of https://github.com/t-kristo/linux-pm into clk-fixes
Pull fixes from Tero Kristo: "A few TI clock driver fixes to pull against 4.3-rc" * 'for-4.3-rc/ti-clk-fixes' of https://github.com/t-kristo/linux-pm: (3 commits) clk: ti: dflt: fix enable_reg validity check clk: ti: fix dual-registration of uart4_ick clk: ti: clk-7xx: Remove hardwired ABE clock configuration
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index db5422e65ec5f..534fc04e80fd5 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
@@ -42,7 +43,7 @@ static int amdgpu_ih_ring_alloc(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, adev->irq.ih.ring_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0,
- NULL, &adev->irq.ih.ring_obj);
+ NULL, NULL, &adev->irq.ih.ring_obj);
if (r) {
DRM_ERROR("amdgpu: failed to create ih ring buffer (%d).\n", r);
return r;
@@ -97,18 +98,12 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, unsigned ring_size,
/* add 8 bytes for the rptr/wptr shadows and
* add them to the end of the ring allocation.
*/
- adev->irq.ih.ring = kzalloc(adev->irq.ih.ring_size + 8, GFP_KERNEL);
+ adev->irq.ih.ring = pci_alloc_consistent(adev->pdev,
+ adev->irq.ih.ring_size + 8,
+ &adev->irq.ih.rb_dma_addr);
if (adev->irq.ih.ring == NULL)
return -ENOMEM;
- adev->irq.ih.rb_dma_addr = pci_map_single(adev->pdev,
- (void *)adev->irq.ih.ring,
- adev->irq.ih.ring_size,
- PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(adev->pdev, adev->irq.ih.rb_dma_addr)) {
- dev_err(&adev->pdev->dev, "Failed to DMA MAP the IH RB page\n");
- kfree((void *)adev->irq.ih.ring);
- return -ENOMEM;
- }
+ memset((void *)adev->irq.ih.ring, 0, adev->irq.ih.ring_size + 8);
adev->irq.ih.wptr_offs = (adev->irq.ih.ring_size / 4) + 0;
adev->irq.ih.rptr_offs = (adev->irq.ih.ring_size / 4) + 1;
}
@@ -148,9 +143,9 @@ void amdgpu_ih_ring_fini(struct amdgpu_device *adev)
/* add 8 bytes for the rptr/wptr shadows and
* add them to the end of the ring allocation.
*/
- pci_unmap_single(adev->pdev, adev->irq.ih.rb_dma_addr,
- adev->irq.ih.ring_size + 8, PCI_DMA_BIDIRECTIONAL);
- kfree((void *)adev->irq.ih.ring);
+ pci_free_consistent(adev->pdev, adev->irq.ih.ring_size + 8,
+ (void *)adev->irq.ih.ring,
+ adev->irq.ih.rb_dma_addr);
adev->irq.ih.ring = NULL;
}
} else {
@@ -199,6 +194,14 @@ restart_ih:
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]);
+
+ entry.iv_entry = (const uint32_t *)
+ &adev->irq.ih.ring[ring_index];
amdgpu_ih_decode_iv(adev, &entry);
adev->irq.ih.rptr &= adev->irq.ih.ptr_mask;