drm/amdgpu: add optional ring to *_hdp callbacks

This adds an optional ring to the invalidate_hdp and flush_hdp
callbacks. If the ring isn't specified or the emit_wreg function not
available the HDP operation will be done with the CPU otherwise by
writing on the ring.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

10 files changed, 81 insertions, 36 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 93ab458e272e..8367f92de09a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1221,9 +1221,10 @@ struct amdgpu_asic_funcs {
         /* get config memsize register */
         u32 (*get_config_memsize)(struct amdgpu_device *adev);
         /* flush hdp write queue */
-        void (*flush_hdp)(struct amdgpu_device *adev);
+        void (*flush_hdp)(struct amdgpu_device *adev, struct amdgpu_ring *ring);
         /* invalidate hdp read cache */
-        void (*invalidate_hdp)(struct amdgpu_device *adev);
+        void (*invalidate_hdp)(struct amdgpu_device *adev,
+                               struct amdgpu_ring *ring);
 };
 
 /*
@@ -1367,7 +1368,7 @@ struct amdgpu_nbio_funcs {
         u32 (*get_pcie_data_offset)(struct amdgpu_device *adev);
         u32 (*get_rev_id)(struct amdgpu_device *adev);
         void (*mc_access_enable)(struct amdgpu_device *adev, bool enable);
-        void (*hdp_flush)(struct amdgpu_device *adev);
+        void (*hdp_flush)(struct amdgpu_device *adev, struct amdgpu_ring *ring);
         u32 (*get_memsize)(struct amdgpu_device *adev);
         void (*sdma_doorbell_range)(struct amdgpu_device *adev, int instance,
                                     bool use_doorbell, int doorbell_index);
@@ -1774,8 +1775,8 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
 #define amdgpu_asic_read_bios_from_rom(adev, b, l) (adev)->asic_funcs->read_bios_from_rom((adev), (b), (l))
 #define amdgpu_asic_read_register(adev, se, sh, offset, v)((adev)->asic_funcs->read_register((adev), (se), (sh), (offset), (v)))
 #define amdgpu_asic_get_config_memsize(adev) (adev)->asic_funcs->get_config_memsize((adev))
-#define amdgpu_asic_flush_hdp(adev) (adev)->asic_funcs->flush_hdp((adev))
-#define amdgpu_asic_invalidate_hdp(adev) (adev)->asic_funcs->invalidate_hdp((adev))
+#define amdgpu_asic_flush_hdp(adev, r) (adev)->asic_funcs->flush_hdp((adev), (r))
+#define amdgpu_asic_invalidate_hdp(adev, r) (adev)->asic_funcs->invalidate_hdp((adev), (r))
 #define amdgpu_gmc_flush_gpu_tlb(adev, vmid) (adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid))
 #define amdgpu_gmc_emit_flush_gpu_tlb(r, vmid, pasid, addr) (r)->adev->gmc.gmc_funcs->emit_flush_gpu_tlb((r), (vmid), (pasid), (addr))
 #define amdgpu_gmc_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gmc.gmc_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 18d23878ad14..56b0b305a9fb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -247,7 +247,7 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
                 }
         }
         mb();
-        amdgpu_asic_flush_hdp(adev);
+        amdgpu_asic_flush_hdp(adev, NULL);
         amdgpu_gmc_flush_gpu_tlb(adev, 0);
         return 0;
 }
@@ -330,7 +330,7 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
                 return r;
 
         mb();
-        amdgpu_asic_flush_hdp(adev);
+        amdgpu_asic_flush_hdp(adev, NULL);
         amdgpu_gmc_flush_gpu_tlb(adev, 0);
         return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 2dca47ad4f09..0df52cb1765b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -854,7 +854,7 @@ restart:
         if (vm->use_cpu_for_update) {
                 /* Flush HDP */
                 mb();
-                amdgpu_asic_flush_hdp(adev);
+                amdgpu_asic_flush_hdp(adev, NULL);
         } else if (params.ib->length_dw == 0) {
                 amdgpu_job_free(job);
         } else {
@@ -1436,7 +1436,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
         if (vm->use_cpu_for_update) {
                 /* Flush HDP */
                 mb();
-                amdgpu_asic_flush_hdp(adev);
+                amdgpu_asic_flush_hdp(adev, NULL);
         }
 
         spin_lock(&vm->status_lock);
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 204ce807372c..4324184996a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1715,16 +1715,25 @@ static void cik_detect_hw_virtualization(struct amdgpu_device *adev)
                 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
 }
 
-static void cik_flush_hdp(struct amdgpu_device *adev)
+static void cik_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
-        RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+                RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+        }
 }
 
-static void cik_invalidate_hdp(struct amdgpu_device *adev)
+static void cik_invalidate_hdp(struct amdgpu_device *adev,
+                               struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_DEBUG0, 1);
-        RREG32(mmHDP_DEBUG0);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_DEBUG0, 1);
+                RREG32(mmHDP_DEBUG0);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_DEBUG0, 1);
+        }
 }
 
 static const struct amdgpu_asic_funcs cik_asic_funcs =
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index e90eaafabeb1..4a82526652cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1009,7 +1009,7 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
         WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
 
         /* After HDP is initialized, flush HDP.*/
-        adev->nbio_funcs->hdp_flush(adev);
+        adev->nbio_funcs->hdp_flush(adev, NULL);
 
         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
                 value = false;
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
index d4da663d5eb0..2daeef6e9345 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
@@ -53,9 +53,16 @@ static void nbio_v6_1_mc_access_enable(struct amdgpu_device *adev, bool enable)
                 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
 }
 
-static void nbio_v6_1_hdp_flush(struct amdgpu_device *adev)
+static void nbio_v6_1_hdp_flush(struct amdgpu_device *adev,
+                                struct amdgpu_ring *ring)
 {
-        WREG32_SOC15_NO_KIQ(NBIO, 0, mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL, 0);
+        if (!ring || !ring->funcs->emit_wreg)
+                WREG32_SOC15_NO_KIQ(NBIO, 0,
+                                    mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL,
+                                    0);
+        else
+                amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
+                        NBIO, 0, mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL), 0);
 }
 
 static u32 nbio_v6_1_get_memsize(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
index 17a9131a4598..cd10c76a76e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
@@ -53,9 +53,14 @@ static void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable)
                 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
 }
 
-static void nbio_v7_0_hdp_flush(struct amdgpu_device *adev)
+static void nbio_v7_0_hdp_flush(struct amdgpu_device *adev,
+                                struct amdgpu_ring *ring)
 {
-        WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
+        if (!ring || !ring->funcs->emit_wreg)
+                WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
+        else
+                amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
+                        NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL), 0);
 }
 
 static u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c
index f61a431b9553..f20c4b7414e8 100644
--- a/drivers/gpu/drm/amd/amdgpu/si.c
+++ b/drivers/gpu/drm/amd/amdgpu/si.c
@@ -1230,16 +1230,25 @@ static void si_detect_hw_virtualization(struct amdgpu_device *adev)
                 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
 }
 
-static void si_flush_hdp(struct amdgpu_device *adev)
+static void si_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
-        RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+                RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+        }
 }
 
-static void si_invalidate_hdp(struct amdgpu_device *adev)
+static void si_invalidate_hdp(struct amdgpu_device *adev,
+                              struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_DEBUG0, 1);
-        RREG32(mmHDP_DEBUG0);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_DEBUG0, 1);
+                RREG32(mmHDP_DEBUG0);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_DEBUG0, 1);
+        }
 }
 
 static const struct amdgpu_asic_funcs si_asic_funcs =
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index ad39ffd012bc..04a471b80064 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -583,14 +583,19 @@ static uint32_t soc15_get_rev_id(struct amdgpu_device *adev)
         return adev->nbio_funcs->get_rev_id(adev);
 }
 
-static void soc15_flush_hdp(struct amdgpu_device *adev)
+static void soc15_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring)
 {
-        adev->nbio_funcs->hdp_flush(adev);
+        adev->nbio_funcs->hdp_flush(adev, ring);
 }
 
-static void soc15_invalidate_hdp(struct amdgpu_device *adev)
+static void soc15_invalidate_hdp(struct amdgpu_device *adev,
+                                 struct amdgpu_ring *ring)
 {
-        WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_READ_CACHE_INVALIDATE, 1);
+        if (!ring || !ring->funcs->emit_wreg)
+                WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_READ_CACHE_INVALIDATE, 1);
+        else
+                amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
+                        HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1);
 }
 
 static const struct amdgpu_asic_funcs soc15_asic_funcs =
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index fbb77b959f8a..61360a1552d8 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -856,16 +856,25 @@ static uint32_t vi_get_rev_id(struct amdgpu_device *adev)
                         >> PCIE_EFUSE4__STRAP_BIF_ATI_REV_ID__SHIFT;
 }
 
-static void vi_flush_hdp(struct amdgpu_device *adev)
+static void vi_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
-        RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+                RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1);
+        }
 }
 
-static void vi_invalidate_hdp(struct amdgpu_device *adev)
+static void vi_invalidate_hdp(struct amdgpu_device *adev,
+                              struct amdgpu_ring *ring)
 {
-        WREG32(mmHDP_DEBUG0, 1);
-        RREG32(mmHDP_DEBUG0);
+        if (!ring || !ring->funcs->emit_wreg) {
+                WREG32(mmHDP_DEBUG0, 1);
+                RREG32(mmHDP_DEBUG0);
+        } else {
+                amdgpu_ring_emit_wreg(ring, mmHDP_DEBUG0, 1);
+        }
 }
 
 static const struct amdgpu_asic_funcs vi_asic_funcs =