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From 006dd19e2c95b561d14840d1426fed064c15c6a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 16 Jan 2018 20:31:15 +0100
Subject: [PATCH 3208/4131] drm/amdgpu: add PASID mapping for GMC v9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This way we can see the PASID in VM faults.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 12 +++++++++++-
drivers/gpu/drm/amd/amdgpu/soc15.h | 2 +-
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 3b77afb..bd17336 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -33,6 +33,7 @@
#include "vega10_enum.h"
#include "mmhub/mmhub_1_0_offset.h"
#include "athub/athub_1_0_offset.h"
+#include "oss/osssys_4_0_offset.h"
#include "soc15.h"
#include "soc15_common.h"
@@ -369,10 +370,12 @@ static uint64_t gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, unsigned pasid,
uint64_t pd_addr)
{
- struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub];
uint32_t req = gmc_v9_0_get_invalidate_req(vmid);
uint64_t flags = AMDGPU_PTE_VALID;
unsigned eng = ring->vm_inv_eng;
+ uint32_t reg;
amdgpu_gmc_get_vm_pde(ring->adev, -1, &pd_addr, &flags);
pd_addr |= flags;
@@ -383,6 +386,13 @@ static uint64_t gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
upper_32_bits(pd_addr));
+ if (ring->funcs->vmhub == AMDGPU_GFXHUB)
+ reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
+ else
+ reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
+
+ amdgpu_ring_emit_wreg(ring, reg, pasid);
+
amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_req + eng, req);
return pd_addr;
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.h b/drivers/gpu/drm/amd/amdgpu/soc15.h
index a6b3b00..0f63ed6 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.h
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.h
@@ -27,7 +27,7 @@
#include "nbio_v6_1.h"
#include "nbio_v7_0.h"
-#define SOC15_FLUSH_GPU_TLB_NUM_WREG 3
+#define SOC15_FLUSH_GPU_TLB_NUM_WREG 4
extern const struct amd_ip_funcs soc15_common_ip_funcs;
--
2.7.4
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