summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index ac73b2c60fc3..267ff3d4872a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -611,6 +611,24 @@ static void gmc_v8_0_flush_gpu_tlb(struct amdgpu_device *adev,
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
}
+static uint64_t gmc_v8_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
+ unsigned vmid, unsigned pasid,
+ uint64_t pd_addr)
+{
+ uint32_t reg;
+
+ if (vmid < 8)
+ reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
+ else
+ reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
+ amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
+
+ /* bits 0-15 are the VM contexts0-15 */
+ amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
+
+ return pd_addr;
+}
+
/**
* gmc_v8_0_set_pte_pde - update the page tables using MMIO
*
@@ -1640,6 +1658,7 @@ static const struct amd_ip_funcs gmc_v8_0_ip_funcs = {
static const struct amdgpu_gmc_funcs gmc_v8_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v8_0_flush_gpu_tlb,
+ .emit_flush_gpu_tlb = gmc_v8_0_emit_flush_gpu_tlb,
.set_pte_pde = gmc_v8_0_set_pte_pde,
.set_prt = gmc_v8_0_set_prt,
.get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags,