From: Le Ma <le.ma@xxxxxxx>
Add support for SDMA 4.4.2.
v1: Create sdma_v4_4_2.[c|h] for initial support (Le)
v2: update amdgpu_ring_init call with atomic score (Hawking)
v3: Squash in sdma_start fixes (Alex)
v4: Comment out currently unused RAS code (Alex)
Signed-off-by: Le Ma <le.ma@xxxxxxx>
Signed-off-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/Makefile | 1 +
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 1967 ++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.h | 30 +
3 files changed, 1998 insertions(+)
create mode 100644 drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.h
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 1d72cbc85348..d4dfd48451ce 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -148,6 +148,7 @@ amdgpu-y += \
sdma_v3_0.o \
sdma_v4_0.o \
sdma_v4_4.o \
+ sdma_v4_4_2.o \
sdma_v5_0.o \
sdma_v5_2.o \
sdma_v6_0.o
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
new file mode 100644
index 000000000000..1b04700a4d55
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
@@ -0,0 +1,1967 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "amdgpu.h"
+#include "amdgpu_ucode.h"
+#include "amdgpu_trace.h"
+
+#include "sdma/sdma_4_4_2_offset.h"
+#include "sdma/sdma_4_4_2_sh_mask.h"
+
+#include "soc15_common.h"
+#include "soc15.h"
+#include "vega10_sdma_pkt_open.h"
+
+#include "ivsrcid/sdma0/irqsrcs_sdma0_4_0.h"
+#include "ivsrcid/sdma1/irqsrcs_sdma1_4_0.h"
+
+#include "amdgpu_ras.h"
+
+MODULE_FIRMWARE("amdgpu/sdma_4_4_2.bin");
+
+#define WREG32_SDMA(instance, offset, value) \
+ WREG32(sdma_v4_4_2_get_reg_offset(adev, (instance), (offset)), value)
+#define RREG32_SDMA(instance, offset) \
+ RREG32(sdma_v4_4_2_get_reg_offset(adev, (instance), (offset)))
+
+static void sdma_v4_4_2_set_ring_funcs(struct amdgpu_device *adev);
+static void sdma_v4_4_2_set_buffer_funcs(struct amdgpu_device *adev);
+static void sdma_v4_4_2_set_vm_pte_funcs(struct amdgpu_device *adev);
+static void sdma_v4_4_2_set_irq_funcs(struct amdgpu_device *adev);
+
+static u32 sdma_v4_4_2_get_reg_offset(struct amdgpu_device *adev,
+ u32 instance, u32 offset)
+{
+ return (adev->reg_offset[SDMA0_HWIP][instance][0] + offset);
+}
+
+static unsigned sdma_v4_4_2_seq_to_irq_id(int seq_num)
+{
+ switch (seq_num) {
+ case 0:
+ return SOC15_IH_CLIENTID_SDMA0;
+ case 1:
+ return SOC15_IH_CLIENTID_SDMA1;
+ case 2:
+ return SOC15_IH_CLIENTID_SDMA2;
+ case 3:
+ return SOC15_IH_CLIENTID_SDMA3;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int sdma_v4_4_2_irq_id_to_seq(unsigned client_id)
+{
+ switch (client_id) {
+ case SOC15_IH_CLIENTID_SDMA0:
+ return 0;
+ case SOC15_IH_CLIENTID_SDMA1:
+ return 1;
+ case SOC15_IH_CLIENTID_SDMA2:
+ return 2;
+ case SOC15_IH_CLIENTID_SDMA3:
+ return 3;
+ default:
+ return -EINVAL;
+ }
+}
+
+static void sdma_v4_4_2_init_golden_registers(struct amdgpu_device *adev)
+{
+ switch (adev->ip_versions[SDMA0_HWIP][0]) {
+ case IP_VERSION(4, 4, 2):
+ break;
+ default:
+ break;
+ }
+}
+
+/**
+ * sdma_v4_4_2_init_microcode - load ucode images from disk
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Use the firmware interface to load the ucode images into
+ * the driver (not loaded into hw).
+ * Returns 0 on success, error on failure.
+ */
+static int sdma_v4_4_2_init_microcode(struct amdgpu_device *adev)
+{
+ int ret, i;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ if (adev->ip_versions[SDMA0_HWIP][0] == IP_VERSION(4, 4, 2)) {
+ ret = amdgpu_sdma_init_microcode(adev, 0, true);
+ break;
+ } else {
+ ret = amdgpu_sdma_init_microcode(adev, i, false);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * sdma_v4_4_2_ring_get_rptr - get the current read pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Get the current rptr from the hardware.
+ */
+static uint64_t sdma_v4_4_2_ring_get_rptr(struct amdgpu_ring *ring)
+{
+ u64 *rptr;
+
+ /* XXX check if swapping is necessary on BE */
+ rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]);
+
+ DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
+ return ((*rptr) >> 2);
+}
+
+/**
+ * sdma_v4_4_2_ring_get_wptr - get the current write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Get the current wptr from the hardware.
+ */
+static uint64_t sdma_v4_4_2_ring_get_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ u64 wptr;
+
+ if (ring->use_doorbell) {
+ /* XXX check if swapping is necessary on BE */
+ wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
+ DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
+ } else {
+ wptr = RREG32_SDMA(ring->me, regSDMA_GFX_RB_WPTR_HI);
+ wptr = wptr << 32;
+ wptr |= RREG32_SDMA(ring->me, regSDMA_GFX_RB_WPTR);
+ DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n",
+ ring->me, wptr);
+ }
+
+ return wptr >> 2;
+}
+
+/**
+ * sdma_v4_4_2_ring_set_wptr - commit the write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Write the wptr back to the hardware.
+ */
+static void sdma_v4_4_2_ring_set_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ DRM_DEBUG("Setting write pointer\n");
+ if (ring->use_doorbell) {
+ u64 *wb = (u64 *)&adev->wb.wb[ring->wptr_offs];
+
+ DRM_DEBUG("Using doorbell -- "
+ "wptr_offs == 0x%08x "
+ "lower_32_bits(ring->wptr) << 2 == 0x%08x "
+ "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
+ ring->wptr_offs,
+ lower_32_bits(ring->wptr << 2),
+ upper_32_bits(ring->wptr << 2));
+ /* XXX check if swapping is necessary on BE */
+ WRITE_ONCE(*wb, (ring->wptr << 2));
+ DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
+ ring->doorbell_index, ring->wptr << 2);
+ WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
+ } else {
+ DRM_DEBUG("Not using doorbell -- "
+ "regSDMA%i_GFX_RB_WPTR == 0x%08x "
+ "regSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
+ ring->me,
+ lower_32_bits(ring->wptr << 2),
+ ring->me,
+ upper_32_bits(ring->wptr << 2));
+ WREG32_SDMA(ring->me, regSDMA_GFX_RB_WPTR,
+ lower_32_bits(ring->wptr << 2));
+ WREG32_SDMA(ring->me, regSDMA_GFX_RB_WPTR_HI,
+ upper_32_bits(ring->wptr << 2));
+ }
+}
+
+/**
+ * sdma_v4_4_2_page_ring_get_wptr - get the current write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Get the current wptr from the hardware.
+ */
+static uint64_t sdma_v4_4_2_page_ring_get_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ u64 wptr;
+
+ if (ring->use_doorbell) {
+ /* XXX check if swapping is necessary on BE */
+ wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
+ } else {
+ wptr = RREG32_SDMA(ring->me, regSDMA_PAGE_RB_WPTR_HI);
+ wptr = wptr << 32;
+ wptr |= RREG32_SDMA(ring->me, regSDMA_PAGE_RB_WPTR);
+ }
+
+ return wptr >> 2;
+}
+
+/**
+ * sdma_v4_4_2_page_ring_set_wptr - commit the write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Write the wptr back to the hardware.
+ */
+static void sdma_v4_4_2_page_ring_set_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (ring->use_doorbell) {
+ u64 *wb = (u64 *)&adev->wb.wb[ring->wptr_offs];
+
+ /* XXX check if swapping is necessary on BE */
+ WRITE_ONCE(*wb, (ring->wptr << 2));
+ WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
+ } else {
+ uint64_t wptr = ring->wptr << 2;
+
+ WREG32_SDMA(ring->me, regSDMA_PAGE_RB_WPTR,
+ lower_32_bits(wptr));
+ WREG32_SDMA(ring->me, regSDMA_PAGE_RB_WPTR_HI,
+ upper_32_bits(wptr));
+ }
+}
+
+static void sdma_v4_4_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
+{
+ struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
+ int i;
+
+ for (i = 0; i < count; i++)
+ if (sdma && sdma->burst_nop && (i == 0))
+ amdgpu_ring_write(ring, ring->funcs->nop |
+ SDMA_PKT_NOP_HEADER_COUNT(count - 1));
+ else
+ amdgpu_ring_write(ring, ring->funcs->nop);
+}
+
+/**
+ * sdma_v4_4_2_ring_emit_ib - Schedule an IB on the DMA engine
+ *
+ * @ring: amdgpu ring pointer
+ * @job: job to retrieve vmid from
+ * @ib: IB object to schedule
+ * @flags: unused
+ *
+ * Schedule an IB in the DMA ring.
+ */
+static void sdma_v4_4_2_ring_emit_ib(struct amdgpu_ring *ring,
+ struct amdgpu_job *job,
+ struct amdgpu_ib *ib,
+ uint32_t flags)
+{
+ unsigned vmid = AMDGPU_JOB_GET_VMID(job);
+
+ /* IB packet must end on a 8 DW boundary */
+ sdma_v4_4_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
+
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
+ SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
+ /* base must be 32 byte aligned */
+ amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
+ amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
+ amdgpu_ring_write(ring, ib->length_dw);
+ amdgpu_ring_write(ring, 0);
+ amdgpu_ring_write(ring, 0);
+
+}
+
+static void sdma_v4_4_2_wait_reg_mem(struct amdgpu_ring *ring,
+ int mem_space, int hdp,
+ uint32_t addr0, uint32_t addr1,
+ uint32_t ref, uint32_t mask,
+ uint32_t inv)
+{
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
+ SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(hdp) |
+ SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(mem_space) |
+ SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
+ if (mem_space) {
+ /* memory */
+ amdgpu_ring_write(ring, addr0);
+ amdgpu_ring_write(ring, addr1);
+ } else {
+ /* registers */
+ amdgpu_ring_write(ring, addr0 << 2);
+ amdgpu_ring_write(ring, addr1 << 2);
+ }
+ amdgpu_ring_write(ring, ref); /* reference */
+ amdgpu_ring_write(ring, mask); /* mask */
+ amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
+ SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(inv)); /* retry count, poll interval */
+}
+
+/**
+ * sdma_v4_4_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Emit an hdp flush packet on the requested DMA ring.
+ */
+static void sdma_v4_4_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ u32 ref_and_mask = 0;
+ const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
+
+ ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
+
+ sdma_v4_4_2_wait_reg_mem(ring, 0, 1,
+ adev->nbio.funcs->get_hdp_flush_done_offset(adev),
+ adev->nbio.funcs->get_hdp_flush_req_offset(adev),
+ ref_and_mask, ref_and_mask, 10);
+}
+
+/**
+ * sdma_v4_4_2_ring_emit_fence - emit a fence on the DMA ring
+ *
+ * @ring: amdgpu ring pointer
+ * @addr: address
+ * @seq: sequence number
+ * @flags: fence related flags
+ *
+ * Add a DMA fence packet to the ring to write
+ * the fence seq number and DMA trap packet to generate
+ * an interrupt if needed.
+ */
+static void sdma_v4_4_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
+ unsigned flags)
+{
+ bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
+ /* write the fence */
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
+ /* zero in first two bits */
+ BUG_ON(addr & 0x3);
+ amdgpu_ring_write(ring, lower_32_bits(addr));
+ amdgpu_ring_write(ring, upper_32_bits(addr));
+ amdgpu_ring_write(ring, lower_32_bits(seq));
+
+ /* optionally write high bits as well */
+ if (write64bit) {
+ addr += 4;
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
+ /* zero in first two bits */
+ BUG_ON(addr & 0x3);
+ amdgpu_ring_write(ring, lower_32_bits(addr));
+ amdgpu_ring_write(ring, upper_32_bits(addr));
+ amdgpu_ring_write(ring, upper_32_bits(seq));
+ }
+
+ /* generate an interrupt */
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
+ amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
+}
+
+
+/**
+ * sdma_v4_4_2_gfx_stop - stop the gfx async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the gfx async dma ring buffers.
+ */
+static void sdma_v4_4_2_gfx_stop(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *sdma[AMDGPU_MAX_SDMA_INSTANCES];
+ u32 rb_cntl, ib_cntl;
+ int i, unset = 0;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ sdma[i] = &adev->sdma.instance[i].ring;
+
+ if ((adev->mman.buffer_funcs_ring == sdma[i]) && unset != 1) {
+ amdgpu_ttm_set_buffer_funcs_status(adev, false);
+ unset = 1;
+ }
+
+ rb_cntl = RREG32_SDMA(i, regSDMA_GFX_RB_CNTL);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_ENABLE, 0);
+ WREG32_SDMA(i, regSDMA_GFX_RB_CNTL, rb_cntl);
+ ib_cntl = RREG32_SDMA(i, regSDMA_GFX_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_GFX_IB_CNTL, IB_ENABLE, 0);
+ WREG32_SDMA(i, regSDMA_GFX_IB_CNTL, ib_cntl);
+ }
+}
+
+/**
+ * sdma_v4_4_2_rlc_stop - stop the compute async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the compute async dma queues.
+ */
+static void sdma_v4_4_2_rlc_stop(struct amdgpu_device *adev)
+{
+ /* XXX todo */
+}
+
+/**
+ * sdma_v4_4_2_page_stop - stop the page async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the page async dma ring buffers.
+ */
+static void sdma_v4_4_2_page_stop(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *sdma[AMDGPU_MAX_SDMA_INSTANCES];
+ u32 rb_cntl, ib_cntl;
+ int i;
+ bool unset = false;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ sdma[i] = &adev->sdma.instance[i].page;
+
+ if ((adev->mman.buffer_funcs_ring == sdma[i]) &&
+ (!unset)) {
+ amdgpu_ttm_set_buffer_funcs_status(adev, false);
+ unset = true;
+ }
+
+ rb_cntl = RREG32_SDMA(i, regSDMA_PAGE_RB_CNTL);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_PAGE_RB_CNTL,
+ RB_ENABLE, 0);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_CNTL, rb_cntl);
+ ib_cntl = RREG32_SDMA(i, regSDMA_PAGE_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_PAGE_IB_CNTL,
+ IB_ENABLE, 0);
+ WREG32_SDMA(i, regSDMA_PAGE_IB_CNTL, ib_cntl);
+ }
+}
+
+/**
+ * sdma_v4_4_2_ctx_switch_enable - stop the async dma engines context switch
+ *
+ * @adev: amdgpu_device pointer
+ * @enable: enable/disable the DMA MEs context switch.
+ *
+ * Halt or unhalt the async dma engines context switch.
+ */
+static void sdma_v4_4_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
+{
+ u32 f32_cntl, phase_quantum = 0;
+ int i;
+
+ if (amdgpu_sdma_phase_quantum) {
+ unsigned value = amdgpu_sdma_phase_quantum;
+ unsigned unit = 0;
+
+ while (value > (SDMA_PHASE0_QUANTUM__VALUE_MASK >>
+ SDMA_PHASE0_QUANTUM__VALUE__SHIFT)) {
+ value = (value + 1) >> 1;
+ unit++;
+ }
+ if (unit > (SDMA_PHASE0_QUANTUM__UNIT_MASK >>
+ SDMA_PHASE0_QUANTUM__UNIT__SHIFT)) {
+ value = (SDMA_PHASE0_QUANTUM__VALUE_MASK >>
+ SDMA_PHASE0_QUANTUM__VALUE__SHIFT);
+ unit = (SDMA_PHASE0_QUANTUM__UNIT_MASK >>
+ SDMA_PHASE0_QUANTUM__UNIT__SHIFT);
+ WARN_ONCE(1,
+ "clamping sdma_phase_quantum to %uK clock cycles\n",
+ value << unit);
+ }
+ phase_quantum =
+ value << SDMA_PHASE0_QUANTUM__VALUE__SHIFT |
+ unit << SDMA_PHASE0_QUANTUM__UNIT__SHIFT;
+ }
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ f32_cntl = RREG32_SDMA(i, regSDMA_CNTL);
+ f32_cntl = REG_SET_FIELD(f32_cntl, SDMA_CNTL,
+ AUTO_CTXSW_ENABLE, enable ? 1 : 0);
+ if (enable && amdgpu_sdma_phase_quantum) {
+ WREG32_SDMA(i, regSDMA_PHASE0_QUANTUM, phase_quantum);
+ WREG32_SDMA(i, regSDMA_PHASE1_QUANTUM, phase_quantum);
+ WREG32_SDMA(i, regSDMA_PHASE2_QUANTUM, phase_quantum);
+ }
+ WREG32_SDMA(i, regSDMA_CNTL, f32_cntl);
+
+ /* Extend page fault timeout to avoid interrupt storm */
+ WREG32_SDMA(i, regSDMA_UTCL1_TIMEOUT, 0x00800080);
+ }
+
+}
+
+/**
+ * sdma_v4_4_2_enable - stop the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ * @enable: enable/disable the DMA MEs.
+ *
+ * Halt or unhalt the async dma engines.
+ */
+static void sdma_v4_4_2_enable(struct amdgpu_device *adev, bool enable)
+{
+ u32 f32_cntl;
+ int i;
+
+ if (!enable) {
+ sdma_v4_4_2_gfx_stop(adev);
+ sdma_v4_4_2_rlc_stop(adev);
+ if (adev->sdma.has_page_queue)
+ sdma_v4_4_2_page_stop(adev);
+ }
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ f32_cntl = RREG32_SDMA(i, regSDMA_F32_CNTL);
+ f32_cntl = REG_SET_FIELD(f32_cntl, SDMA_F32_CNTL, HALT, enable ? 0 : 1);
+ WREG32_SDMA(i, regSDMA_F32_CNTL, f32_cntl);
+ }
+}
+
+/*
+ * sdma_v4_4_2_rb_cntl - get parameters for rb_cntl
+ */
+static uint32_t sdma_v4_4_2_rb_cntl(struct amdgpu_ring *ring, uint32_t rb_cntl)
+{
+ /* Set ring buffer size in dwords */
+ uint32_t rb_bufsz = order_base_2(ring->ring_size / 4);
+
+ barrier(); /* work around https://bugs.llvm.org/show_bug.cgi?id=42576 */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
+#ifdef __BIG_ENDIAN
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL,
+ RPTR_WRITEBACK_SWAP_ENABLE, 1);
+#endif
+ return rb_cntl;
+}
+
+/**
+ * sdma_v4_4_2_gfx_resume - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ * @i: instance to resume
+ *
+ * Set up the gfx DMA ring buffers and enable them.
+ * Returns 0 for success, error for failure.
+ */
+static void sdma_v4_4_2_gfx_resume(struct amdgpu_device *adev, unsigned int i)
+{
+ struct amdgpu_ring *ring = &adev->sdma.instance[i].ring;
+ u32 rb_cntl, ib_cntl, wptr_poll_cntl;
+ u32 wb_offset;
+ u32 doorbell;
+ u32 doorbell_offset;
+ u64 wptr_gpu_addr;
+
+ wb_offset = (ring->rptr_offs * 4);
+
+ rb_cntl = RREG32_SDMA(i, regSDMA_GFX_RB_CNTL);
+ rb_cntl = sdma_v4_4_2_rb_cntl(ring, rb_cntl);
+ WREG32_SDMA(i, regSDMA_GFX_RB_CNTL, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32_SDMA(i, regSDMA_GFX_RB_RPTR, 0);
+ WREG32_SDMA(i, regSDMA_GFX_RB_RPTR_HI, 0);
+ WREG32_SDMA(i, regSDMA_GFX_RB_WPTR, 0);
+ WREG32_SDMA(i, regSDMA_GFX_RB_WPTR_HI, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32_SDMA(i, regSDMA_GFX_RB_RPTR_ADDR_HI,
+ upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
+ WREG32_SDMA(i, regSDMA_GFX_RB_RPTR_ADDR_LO,
+ lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
+
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL,
+ RPTR_WRITEBACK_ENABLE, 1);
+
+ WREG32_SDMA(i, regSDMA_GFX_RB_BASE, ring->gpu_addr >> 8);
+ WREG32_SDMA(i, regSDMA_GFX_RB_BASE_HI, ring->gpu_addr >> 40);
+
+ ring->wptr = 0;
+
+ /* before programing wptr to a less value, need set minor_ptr_update first */
+ WREG32_SDMA(i, regSDMA_GFX_MINOR_PTR_UPDATE, 1);
+
+ doorbell = RREG32_SDMA(i, regSDMA_GFX_DOORBELL);
+ doorbell_offset = RREG32_SDMA(i, regSDMA_GFX_DOORBELL_OFFSET);
+
+ doorbell = REG_SET_FIELD(doorbell, SDMA_GFX_DOORBELL, ENABLE,
+ ring->use_doorbell);
+ doorbell_offset = REG_SET_FIELD(doorbell_offset,
+ SDMA_GFX_DOORBELL_OFFSET,
+ OFFSET, ring->doorbell_index);
+ WREG32_SDMA(i, regSDMA_GFX_DOORBELL, doorbell);
+ WREG32_SDMA(i, regSDMA_GFX_DOORBELL_OFFSET, doorbell_offset);
+
+ sdma_v4_4_2_ring_set_wptr(ring);
+
+ /* set minor_ptr_update to 0 after wptr programed */
+ WREG32_SDMA(i, regSDMA_GFX_MINOR_PTR_UPDATE, 0);
+
+ /* setup the wptr shadow polling */
+ wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
+ WREG32_SDMA(i, regSDMA_GFX_RB_WPTR_POLL_ADDR_LO,
+ lower_32_bits(wptr_gpu_addr));
+ WREG32_SDMA(i, regSDMA_GFX_RB_WPTR_POLL_ADDR_HI,
+ upper_32_bits(wptr_gpu_addr));
+ wptr_poll_cntl = RREG32_SDMA(i, regSDMA_GFX_RB_WPTR_POLL_CNTL);
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
+ SDMA_GFX_RB_WPTR_POLL_CNTL,
+ F32_POLL_ENABLE, amdgpu_sriov_vf(adev)? 1 : 0);
+ WREG32_SDMA(i, regSDMA_GFX_RB_WPTR_POLL_CNTL, wptr_poll_cntl);
+
+ /* enable DMA RB */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_ENABLE, 1);
+ WREG32_SDMA(i, regSDMA_GFX_RB_CNTL, rb_cntl);
+
+ ib_cntl = RREG32_SDMA(i, regSDMA_GFX_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_GFX_IB_CNTL, IB_ENABLE, 1);
+#ifdef __BIG_ENDIAN
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
+#endif
+ /* enable DMA IBs */
+ WREG32_SDMA(i, regSDMA_GFX_IB_CNTL, ib_cntl);
+
+ ring->sched.ready = true;
+}
+
+/**
+ * sdma_v4_4_2_page_resume - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ * @i: instance to resume
+ *
+ * Set up the page DMA ring buffers and enable them.
+ * Returns 0 for success, error for failure.
+ */
+static void sdma_v4_4_2_page_resume(struct amdgpu_device *adev, unsigned int i)
+{
+ struct amdgpu_ring *ring = &adev->sdma.instance[i].page;
+ u32 rb_cntl, ib_cntl, wptr_poll_cntl;
+ u32 wb_offset;
+ u32 doorbell;
+ u32 doorbell_offset;
+ u64 wptr_gpu_addr;
+
+ wb_offset = (ring->rptr_offs * 4);
+
+ rb_cntl = RREG32_SDMA(i, regSDMA_PAGE_RB_CNTL);
+ rb_cntl = sdma_v4_4_2_rb_cntl(ring, rb_cntl);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_CNTL, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32_SDMA(i, regSDMA_PAGE_RB_RPTR, 0);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_RPTR_HI, 0);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_WPTR, 0);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_WPTR_HI, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32_SDMA(i, regSDMA_PAGE_RB_RPTR_ADDR_HI,
+ upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_RPTR_ADDR_LO,
+ lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
+
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_PAGE_RB_CNTL,
+ RPTR_WRITEBACK_ENABLE, 1);
+
+ WREG32_SDMA(i, regSDMA_PAGE_RB_BASE, ring->gpu_addr >> 8);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_BASE_HI, ring->gpu_addr >> 40);
+
+ ring->wptr = 0;
+
+ /* before programing wptr to a less value, need set minor_ptr_update first */
+ WREG32_SDMA(i, regSDMA_PAGE_MINOR_PTR_UPDATE, 1);
+
+ doorbell = RREG32_SDMA(i, regSDMA_PAGE_DOORBELL);
+ doorbell_offset = RREG32_SDMA(i, regSDMA_PAGE_DOORBELL_OFFSET);
+
+ doorbell = REG_SET_FIELD(doorbell, SDMA_PAGE_DOORBELL, ENABLE,
+ ring->use_doorbell);
+ doorbell_offset = REG_SET_FIELD(doorbell_offset,
+ SDMA_PAGE_DOORBELL_OFFSET,
+ OFFSET, ring->doorbell_index);
+ WREG32_SDMA(i, regSDMA_PAGE_DOORBELL, doorbell);
+ WREG32_SDMA(i, regSDMA_PAGE_DOORBELL_OFFSET, doorbell_offset);
+
+ /* paging queue doorbell range is setup at sdma_v4_4_2_gfx_resume */
+ sdma_v4_4_2_page_ring_set_wptr(ring);
+
+ /* set minor_ptr_update to 0 after wptr programed */
+ WREG32_SDMA(i, regSDMA_PAGE_MINOR_PTR_UPDATE, 0);
+
+ /* setup the wptr shadow polling */
+ wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_WPTR_POLL_ADDR_LO,
+ lower_32_bits(wptr_gpu_addr));
+ WREG32_SDMA(i, regSDMA_PAGE_RB_WPTR_POLL_ADDR_HI,
+ upper_32_bits(wptr_gpu_addr));
+ wptr_poll_cntl = RREG32_SDMA(i, regSDMA_PAGE_RB_WPTR_POLL_CNTL);
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
+ SDMA_PAGE_RB_WPTR_POLL_CNTL,
+ F32_POLL_ENABLE, amdgpu_sriov_vf(adev)? 1 : 0);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_WPTR_POLL_CNTL, wptr_poll_cntl);
+
+ /* enable DMA RB */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_PAGE_RB_CNTL, RB_ENABLE, 1);
+ WREG32_SDMA(i, regSDMA_PAGE_RB_CNTL, rb_cntl);
+
+ ib_cntl = RREG32_SDMA(i, regSDMA_PAGE_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_PAGE_IB_CNTL, IB_ENABLE, 1);
+#ifdef __BIG_ENDIAN
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA_PAGE_IB_CNTL, IB_SWAP_ENABLE, 1);
+#endif
+ /* enable DMA IBs */
+ WREG32_SDMA(i, regSDMA_PAGE_IB_CNTL, ib_cntl);
+
+ ring->sched.ready = true;
+}
+
+static void sdma_v4_4_2_init_pg(struct amdgpu_device *adev)
+{
+
+}
+
+/**
+ * sdma_v4_4_2_rlc_resume - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set up the compute DMA queues and enable them.
+ * Returns 0 for success, error for failure.
+ */
+static int sdma_v4_4_2_rlc_resume(struct amdgpu_device *adev)
+{
+ sdma_v4_4_2_init_pg(adev);
+
+ return 0;
+}
+
+/**
+ * sdma_v4_4_2_load_microcode - load the sDMA ME ucode
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Loads the sDMA0/1 ucode.
+ * Returns 0 for success, -EINVAL if the ucode is not available.
+ */
+static int sdma_v4_4_2_load_microcode(struct amdgpu_device *adev)
+{
+ const struct sdma_firmware_header_v1_0 *hdr;
+ const __le32 *fw_data;
+ u32 fw_size;
+ int i, j;
+
+ /* halt the MEs */
+ sdma_v4_4_2_enable(adev, false);
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ if (!adev->sdma.instance[i].fw)
+ return -EINVAL;
+
+ hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
+ amdgpu_ucode_print_sdma_hdr(&hdr->header);
+ fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
+
+ fw_data = (const __le32 *)
+ (adev->sdma.instance[i].fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+
+ WREG32_SDMA(i, regSDMA_UCODE_ADDR, 0);
+
+ for (j = 0; j < fw_size; j++)
+ WREG32_SDMA(i, regSDMA_UCODE_DATA,
+ le32_to_cpup(fw_data++));
+
+ WREG32_SDMA(i, regSDMA_UCODE_ADDR,
+ adev->sdma.instance[i].fw_version);
+ }
+
+ return 0;
+}
+
+/**
+ * sdma_v4_4_2_start - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set up the DMA engines and enable them.
+ * Returns 0 for success, error for failure.
+ */
+static int sdma_v4_4_2_start(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *ring;
+ int i, r = 0;
+
+ if (amdgpu_sriov_vf(adev)) {
+ sdma_v4_4_2_ctx_switch_enable(adev, false);
+ sdma_v4_4_2_enable(adev, false);
+ } else {
+ /* bypass sdma microcode loading on Gopher */
+ if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP &&
+ !(adev->pdev->device == 0x49) && !(adev->pdev->device == 0x50)) {
+ r = sdma_v4_4_2_load_microcode(adev);
+ if (r)
+ return r;
+ }
+
+ /* unhalt the MEs */
+ sdma_v4_4_2_enable(adev, true);
+ /* enable sdma ring preemption */
+ sdma_v4_4_2_ctx_switch_enable(adev, true);
+ }
+
+ /* start the gfx rings and rlc compute queues */
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ uint32_t temp;
+
+ WREG32_SDMA(i, regSDMA_SEM_WAIT_FAIL_TIMER_CNTL, 0);
+ sdma_v4_4_2_gfx_resume(adev, i);
+ if (adev->sdma.has_page_queue)
+ sdma_v4_4_2_page_resume(adev, i);
+
+ /* set utc l1 enable flag always to 1 */
+ temp = RREG32_SDMA(i, regSDMA_CNTL);
+ temp = REG_SET_FIELD(temp, SDMA_CNTL, UTC_L1_ENABLE, 1);
+ WREG32_SDMA(i, regSDMA_CNTL, temp);
+
+ if (!amdgpu_sriov_vf(adev)) {
+ ring = &adev->sdma.instance[i].ring;
+ adev->nbio.funcs->sdma_doorbell_range(adev, i,
+ ring->use_doorbell, ring->doorbell_index,
+ adev->doorbell_index.sdma_doorbell_range);
+
+ /* unhalt engine */
+ temp = RREG32_SDMA(i, regSDMA_F32_CNTL);
+ temp = REG_SET_FIELD(temp, SDMA_F32_CNTL, HALT, 0);
+ WREG32_SDMA(i, regSDMA_F32_CNTL, temp);
+ }
+ }
+
+ if (amdgpu_sriov_vf(adev)) {
+ sdma_v4_4_2_ctx_switch_enable(adev, true);
+ sdma_v4_4_2_enable(adev, true);
+ } else {
+ r = sdma_v4_4_2_rlc_resume(adev);
+ if (r)
+ return r;
+ }
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ ring = &adev->sdma.instance[i].ring;
+
+ r = amdgpu_ring_test_helper(ring);
+ if (r)
+ return r;
+
+ if (adev->sdma.has_page_queue) {
+ struct amdgpu_ring *page = &adev->sdma.instance[i].page;
+
+ r = amdgpu_ring_test_helper(page);
+ if (r)
+ return r;
+
+ if (adev->mman.buffer_funcs_ring == page)
+ amdgpu_ttm_set_buffer_funcs_status(adev, true);
+ }
+
+ if (adev->mman.buffer_funcs_ring == ring)
+ amdgpu_ttm_set_buffer_funcs_status(adev, true);
+ }
+
+ return r;
+}
+
+/**
+ * sdma_v4_4_2_ring_test_ring - simple async dma engine test
+ *
+ * @ring: amdgpu_ring structure holding ring information
+ *
+ * Test the DMA engine by writing using it to write an
+ * value to memory.
+ * Returns 0 for success, error for failure.
+ */
+static int sdma_v4_4_2_ring_test_ring(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ unsigned i;
+ unsigned index;
+ int r;
+ u32 tmp;
+ u64 gpu_addr;
+
+ r = amdgpu_device_wb_get(adev, &index);
+ if (r)
+ return r;
+
+ gpu_addr = adev->wb.gpu_addr + (index * 4);
+ tmp = 0xCAFEDEAD;
+ adev->wb.wb[index] = cpu_to_le32(tmp);
+
+ r = amdgpu_ring_alloc(ring, 5);
+ if (r)
+ goto error_free_wb;
+
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
+ SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
+ amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
+ amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
+ amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
+ amdgpu_ring_write(ring, 0xDEADBEEF);
+ amdgpu_ring_commit(ring);
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ tmp = le32_to_cpu(adev->wb.wb[index]);
+ if (tmp == 0xDEADBEEF)
+ break;
+ udelay(1);
+ }
+
+ if (i >= adev->usec_timeout)
+ r = -ETIMEDOUT;
+
+error_free_wb:
+ amdgpu_device_wb_free(adev, index);
+ return r;
+}
+
+/**
+ * sdma_v4_4_2_ring_test_ib - test an IB on the DMA engine
+ *
+ * @ring: amdgpu_ring structure holding ring information
+ * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
+ *
+ * Test a simple IB in the DMA ring.
+ * Returns 0 on success, error on failure.
+ */
+static int sdma_v4_4_2_ring_test_ib(struct amdgpu_ring *ring, long timeout)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_ib ib;
+ struct dma_fence *f = NULL;
+ unsigned index;
+ long r;
+ u32 tmp = 0;
+ u64 gpu_addr;
+
+ r = amdgpu_device_wb_get(adev, &index);
+ if (r)
+ return r;
+
+ gpu_addr = adev->wb.gpu_addr + (index * 4);
+ tmp = 0xCAFEDEAD;
+ adev->wb.wb[index] = cpu_to_le32(tmp);
+ memset(&ib, 0, sizeof(ib));
+ r = amdgpu_ib_get(adev, NULL, 256,
+ AMDGPU_IB_POOL_DIRECT, &ib);
+ if (r)
+ goto err0;
+
+ ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
+ SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
+ ib.ptr[1] = lower_32_bits(gpu_addr);
+ ib.ptr[2] = upper_32_bits(gpu_addr);
+ ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
+ ib.ptr[4] = 0xDEADBEEF;
+ ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
+ ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
+ ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
+ ib.length_dw = 8;
+
+ r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
+ if (r)
+ goto err1;
+
+ r = dma_fence_wait_timeout(f, false, timeout);
+ if (r == 0) {
+ r = -ETIMEDOUT;
+ goto err1;
+ } else if (r < 0) {
+ goto err1;
+ }
+ tmp = le32_to_cpu(adev->wb.wb[index]);
+ if (tmp == 0xDEADBEEF)
+ r = 0;
+ else
+ r = -EINVAL;
+
+err1:
+ amdgpu_ib_free(adev, &ib, NULL);
+ dma_fence_put(f);
+err0:
+ amdgpu_device_wb_free(adev, index);
+ return r;
+}
+
+
+/**
+ * sdma_v4_4_2_vm_copy_pte - update PTEs by copying them from the GART
+ *
+ * @ib: indirect buffer to fill with commands
+ * @pe: addr of the page entry
+ * @src: src addr to copy from
+ * @count: number of page entries to update
+ *
+ * Update PTEs by copying them from the GART using sDMA.
+ */
+static void sdma_v4_4_2_vm_copy_pte(struct amdgpu_ib *ib,
+ uint64_t pe, uint64_t src,
+ unsigned count)
+{
+ unsigned bytes = count * 8;
+
+ ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
+ SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
+ ib->ptr[ib->length_dw++] = bytes - 1;
+ ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
+ ib->ptr[ib->length_dw++] = lower_32_bits(src);
+ ib->ptr[ib->length_dw++] = upper_32_bits(src);
+ ib->ptr[ib->length_dw++] = lower_32_bits(pe);
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe);
+
+}
+
+/**
+ * sdma_v4_4_2_vm_write_pte - update PTEs by writing them manually
+ *
+ * @ib: indirect buffer to fill with commands
+ * @pe: addr of the page entry
+ * @value: dst addr to write into pe
+ * @count: number of page entries to update
+ * @incr: increase next addr by incr bytes
+ *
+ * Update PTEs by writing them manually using sDMA.
+ */
+static void sdma_v4_4_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
+ uint64_t value, unsigned count,
+ uint32_t incr)
+{
+ unsigned ndw = count * 2;
+
+ ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
+ SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
+ ib->ptr[ib->length_dw++] = lower_32_bits(pe);
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe);
+ ib->ptr[ib->length_dw++] = ndw - 1;
+ for (; ndw > 0; ndw -= 2) {
+ ib->ptr[ib->length_dw++] = lower_32_bits(value);
+ ib->ptr[ib->length_dw++] = upper_32_bits(value);
+ value += incr;
+ }
+}
+
+/**
+ * sdma_v4_4_2_vm_set_pte_pde - update the page tables using sDMA
+ *
+ * @ib: indirect buffer to fill with commands
+ * @pe: addr of the page entry
+ * @addr: dst addr to write into pe
+ * @count: number of page entries to update
+ * @incr: increase next addr by incr bytes
+ * @flags: access flags
+ *
+ * Update the page tables using sDMA.
+ */
+static void sdma_v4_4_2_vm_set_pte_pde(struct amdgpu_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint64_t flags)
+{
+ /* for physically contiguous pages (vram) */
+ ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
+ ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe);
+ ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
+ ib->ptr[ib->length_dw++] = upper_32_bits(flags);
+ ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
+ ib->ptr[ib->length_dw++] = upper_32_bits(addr);
+ ib->ptr[ib->length_dw++] = incr; /* increment size */
+ ib->ptr[ib->length_dw++] = 0;
+ ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
+}
+
+/**
+ * sdma_v4_4_2_ring_pad_ib - pad the IB to the required number of dw
+ *
+ * @ring: amdgpu_ring structure holding ring information
+ * @ib: indirect buffer to fill with padding
+ */
+static void sdma_v4_4_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
+{
+ struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
+ u32 pad_count;
+ int i;
+
+ pad_count = (-ib->length_dw) & 7;
+ for (i = 0; i < pad_count; i++)
+ if (sdma && sdma->burst_nop && (i == 0))
+ ib->ptr[ib->length_dw++] =
+ SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
+ SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
+ else
+ ib->ptr[ib->length_dw++] =
+ SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
+}
+
+
+/**
+ * sdma_v4_4_2_ring_emit_pipeline_sync - sync the pipeline
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Make sure all previous operations are completed (CIK).
+ */
+static void sdma_v4_4_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
+{
+ uint32_t seq = ring->fence_drv.sync_seq;
+ uint64_t addr = ring->fence_drv.gpu_addr;
+
+ /* wait for idle */
+ sdma_v4_4_2_wait_reg_mem(ring, 1, 0,
+ addr & 0xfffffffc,
+ upper_32_bits(addr) & 0xffffffff,
+ seq, 0xffffffff, 4);
+}
+
+
+/**
+ * sdma_v4_4_2_ring_emit_vm_flush - vm flush using sDMA
+ *
+ * @ring: amdgpu_ring pointer
+ * @vmid: vmid number to use
+ * @pd_addr: address
+ *
+ * Update the page table base and flush the VM TLB
+ * using sDMA.
+ */
+static void sdma_v4_4_2_ring_emit_vm_flush(struct amdgpu_ring *ring,
+ unsigned vmid, uint64_t pd_addr)
+{
+ amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
+}
+
+static void sdma_v4_4_2_ring_emit_wreg(struct amdgpu_ring *ring,
+ uint32_t reg, uint32_t val)
+{
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
+ SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
+ amdgpu_ring_write(ring, reg);
+ amdgpu_ring_write(ring, val);
+}
+
+static void sdma_v4_4_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
+ uint32_t val, uint32_t mask)
+{
+ sdma_v4_4_2_wait_reg_mem(ring, 0, 0, reg, 0, val, mask, 10);
+}
+
+static bool sdma_v4_4_2_fw_support_paging_queue(struct amdgpu_device *adev)
+{
+ switch (adev->ip_versions[SDMA0_HWIP][0]) {
+ case IP_VERSION(4, 4, 2):
+ return false;
+ default:
+ return false;
+ }
+}
+
+static int sdma_v4_4_2_early_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int r;
+
+ r = sdma_v4_4_2_init_microcode(adev);
+ if (r) {
+ DRM_ERROR("Failed to load sdma firmware!\n");
+ return r;
+ }
+
+ /* TODO: Page queue breaks driver reload under SRIOV */
+ if (sdma_v4_4_2_fw_support_paging_queue(adev))
+ adev->sdma.has_page_queue = true;
+
+ sdma_v4_4_2_set_ring_funcs(adev);
+ sdma_v4_4_2_set_buffer_funcs(adev);
+ sdma_v4_4_2_set_vm_pte_funcs(adev);
+ sdma_v4_4_2_set_irq_funcs(adev);
+
+ return 0;
+}
+
+#if 0
+static int sdma_v4_4_2_process_ras_data_cb(struct amdgpu_device *adev,
+ void *err_data,
+ struct amdgpu_iv_entry *entry);
+#endif
+
+static int sdma_v4_4_2_late_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+#if 0
+ struct ras_ih_if ih_info = {
+ .cb = sdma_v4_4_2_process_ras_data_cb,
+ };
+#endif
+ if (!amdgpu_persistent_edc_harvesting_supported(adev)) {
+ if (adev->sdma.ras && adev->sdma.ras->ras_block.hw_ops &&
+ adev->sdma.ras->ras_block.hw_ops->reset_ras_error_count)
+ adev->sdma.ras->ras_block.hw_ops->reset_ras_error_count(adev);
+ }
+
+ return 0;
+}
+
+static int sdma_v4_4_2_sw_init(void *handle)
+{
+ struct amdgpu_ring *ring;
+ int r, i;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ /* SDMA trap event */
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_TRAP,
+ &adev->sdma.trap_irq);
+ if (r)
+ return r;
+ }
+
+ /* SDMA SRAM ECC event */
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_SRAM_ECC,
+ &adev->sdma.ecc_irq);
+ if (r)
+ return r;
+ }
+
+ /* SDMA VM_HOLE/DOORBELL_INV/POLL_TIMEOUT/SRBM_WRITE_PROTECTION event*/
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_VM_HOLE,
+ &adev->sdma.vm_hole_irq);
+ if (r)
+ return r;
+
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_DOORBELL_INVALID,
+ &adev->sdma.doorbell_invalid_irq);
+ if (r)
+ return r;
+
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_POLL_TIMEOUT,
+ &adev->sdma.pool_timeout_irq);
+ if (r)
+ return r;
+
+ r = amdgpu_irq_add_id(adev, sdma_v4_4_2_seq_to_irq_id(i),
+ SDMA0_4_0__SRCID__SDMA_SRBMWRITE,
+ &adev->sdma.srbm_write_irq);
+ if (r)
+ return r;
+ }
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ ring = &adev->sdma.instance[i].ring;
+ ring->ring_obj = NULL;
+ ring->use_doorbell = true;
+
+ DRM_DEBUG("SDMA %d use_doorbell being set to: [%s]\n", i,
+ ring->use_doorbell?"true":"false");
+
+ /* doorbell size is 2 dwords, get DWORD offset */
+ ring->doorbell_index = adev->doorbell_index.sdma_engine[i] << 1;
+
+ sprintf(ring->name, "sdma%d", i);
+ r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
+ AMDGPU_SDMA_IRQ_INSTANCE0 + i,
+ AMDGPU_RING_PRIO_DEFAULT, NULL);
+ if (r)
+ return r;
+
+ if (adev->sdma.has_page_queue) {
+ ring = &adev->sdma.instance[i].page;
+ ring->ring_obj = NULL;
+ ring->use_doorbell = true;
+
+ /* paging queue use same doorbell index/routing as gfx queue
+ * with 0x400 (4096 dwords) offset on second doorbell page
+ */
+ ring->doorbell_index = adev->doorbell_index.sdma_engine[i] << 1;
+ ring->doorbell_index += 0x400;
+
+ sprintf(ring->name, "page%d", i);
+ r = amdgpu_ring_init(adev, ring, 1024,
+ &adev->sdma.trap_irq,
+ AMDGPU_SDMA_IRQ_INSTANCE0 + i,
+ AMDGPU_RING_PRIO_DEFAULT, NULL);
+ if (r)
+ return r;
+ }
+ }
+
+ return r;
+}
+
+static int sdma_v4_4_2_sw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int i;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ amdgpu_ring_fini(&adev->sdma.instance[i].ring);
+ if (adev->sdma.has_page_queue)
+ amdgpu_ring_fini(&adev->sdma.instance[i].page);
+ }
+
+ if (adev->ip_versions[SDMA0_HWIP][0] == IP_VERSION(4, 4, 2))
+ amdgpu_sdma_destroy_inst_ctx(adev, true);
+ else
+ amdgpu_sdma_destroy_inst_ctx(adev, false);
+
+ return 0;
+}
+
+static int sdma_v4_4_2_hw_init(void *handle)
+{
+ int r;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ if (adev->flags & AMD_IS_APU)
+ amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_SDMA, false);
+
+ if (!amdgpu_sriov_vf(adev))
+ sdma_v4_4_2_init_golden_registers(adev);
+
+ r = sdma_v4_4_2_start(adev);
+
+ return r;
+}
+
+static int sdma_v4_4_2_hw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int i;
+
+ if (amdgpu_sriov_vf(adev))
+ return 0;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ amdgpu_irq_put(adev, &adev->sdma.ecc_irq,
+ AMDGPU_SDMA_IRQ_INSTANCE0 + i);
+ }
+
+ sdma_v4_4_2_ctx_switch_enable(adev, false);
+ sdma_v4_4_2_enable(adev, false);
+
+ return 0;
+}
+
+static int sdma_v4_4_2_suspend(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return sdma_v4_4_2_hw_fini(adev);
+}
+
+static int sdma_v4_4_2_resume(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return sdma_v4_4_2_hw_init(adev);
+}
+
+static bool sdma_v4_4_2_is_idle(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ u32 i;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ u32 tmp = RREG32_SDMA(i, regSDMA_STATUS_REG);
+
+ if (!(tmp & SDMA_STATUS_REG__IDLE_MASK))
+ return false;
+ }
+
+ return true;
+}
+
+static int sdma_v4_4_2_wait_for_idle(void *handle)
+{
+ unsigned i, j;
+ u32 sdma[AMDGPU_MAX_SDMA_INSTANCES];
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ for (j = 0; j < adev->sdma.num_instances; j++) {
+ sdma[j] = RREG32_SDMA(j, regSDMA_STATUS_REG);
+ if (!(sdma[j] & SDMA_STATUS_REG__IDLE_MASK))
+ break;
+ }
+ if (j == adev->sdma.num_instances)
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static int sdma_v4_4_2_soft_reset(void *handle)
+{
+ /* todo */
+
+ return 0;
+}
+
+static int sdma_v4_4_2_set_trap_irq_state(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ unsigned type,
+ enum amdgpu_interrupt_state state)
+{
+ u32 sdma_cntl;
+
+ sdma_cntl = RREG32_SDMA(type, regSDMA_CNTL);
+ sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA_CNTL, TRAP_ENABLE,
+ state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
+ WREG32_SDMA(type, regSDMA_CNTL, sdma_cntl);
+
+ return 0;
+}
+
+static int sdma_v4_4_2_process_trap_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ uint32_t instance;
+
+ DRM_DEBUG("IH: SDMA trap\n");
+ instance = sdma_v4_4_2_irq_id_to_seq(entry->client_id);
+ switch (entry->ring_id) {
+ case 0:
+ amdgpu_fence_process(&adev->sdma.instance[instance].ring);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+#if 0
+static int sdma_v4_4_2_process_ras_data_cb(struct amdgpu_device *adev,
+ void *err_data,
+ struct amdgpu_iv_entry *entry)
+{
+ int instance;
+
+ /* When “Full RAS” is enabled, the per-IP interrupt sources should
+ * be disabled and the driver should only look for the aggregated
+ * interrupt via sync flood
+ */
+ if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
+ goto out;
+
+ instance = sdma_v4_4_2_irq_id_to_seq(entry->client_id);
+ if (instance < 0)
+ goto out;
+
+ amdgpu_sdma_process_ras_data_cb(adev, err_data, entry);
+
+out:
+ return AMDGPU_RAS_SUCCESS;
+}
+#endif
+
+static int sdma_v4_4_2_process_illegal_inst_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ int instance;
+
+ DRM_ERROR("Illegal instruction in SDMA command stream\n");
+
+ instance = sdma_v4_4_2_irq_id_to_seq(entry->client_id);
+ if (instance < 0)
+ return 0;
+
+ switch (entry->ring_id) {
+ case 0:
+ drm_sched_fault(&adev->sdma.instance[instance].ring.sched);
+ break;
+ }
+ return 0;
+}
+
+static int sdma_v4_4_2_set_ecc_irq_state(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ unsigned type,
+ enum amdgpu_interrupt_state state)
+{
+ u32 sdma_edc_config;
+
+ sdma_edc_config = RREG32_SDMA(type, regCC_SDMA_EDC_CONFIG);
+ /*
+ * FIXME: This was inherited from Aldebaran, but no this field
+ * definition in the regspec of both Aldebaran and SDMA 4.4.2
+ */
+ sdma_edc_config |= (state == AMDGPU_IRQ_STATE_ENABLE) ? (1 << 2) : 0;
+ WREG32_SDMA(type, regCC_SDMA_EDC_CONFIG, sdma_edc_config);
+
+ return 0;
+}
+
+static int sdma_v4_4_2_print_iv_entry(struct amdgpu_device *adev,
+ struct amdgpu_iv_entry *entry)
+{
+ int instance;
+ struct amdgpu_task_info task_info;
+ u64 addr;
+
+ instance = sdma_v4_4_2_irq_id_to_seq(entry->client_id);
+ if (instance < 0 || instance >= adev->sdma.num_instances) {
+ dev_err(adev->dev, "sdma instance invalid %d\n", instance);
+ return -EINVAL;
+ }
+
+ addr = (u64)entry->src_data[0] << 12;
+ addr |= ((u64)entry->src_data[1] & 0xf) << 44;
+
+ memset(&task_info, 0, sizeof(struct amdgpu_task_info));
+ amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+
+ dev_dbg_ratelimited(adev->dev,
+ "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
+ "pasid:%u, for process %s pid %d thread %s pid %d\n",
+ instance, addr, entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid, task_info.process_name, task_info.tgid,
+ task_info.task_name, task_info.pid);
+ return 0;
+}
+
+static int sdma_v4_4_2_process_vm_hole_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ dev_dbg_ratelimited(adev->dev, "MC or SEM address in VM hole\n");
+ sdma_v4_4_2_print_iv_entry(adev, entry);
+ return 0;
+}
+
+static int sdma_v4_4_2_process_doorbell_invalid_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+
+ dev_dbg_ratelimited(adev->dev, "SDMA received a doorbell from BIF with byte_enable !=0xff\n");
+ sdma_v4_4_2_print_iv_entry(adev, entry);
+ return 0;
+}
+
+static int sdma_v4_4_2_process_pool_timeout_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ dev_dbg_ratelimited(adev->dev,
+ "Polling register/memory timeout executing POLL_REG/MEM with finite timer\n");
+ sdma_v4_4_2_print_iv_entry(adev, entry);
+ return 0;
+}
+
+static int sdma_v4_4_2_process_srbm_write_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ dev_dbg_ratelimited(adev->dev,
+ "SDMA gets an Register Write SRBM_WRITE command in non-privilege command buffer\n");
+ sdma_v4_4_2_print_iv_entry(adev, entry);
+ return 0;
+}
+
+static void sdma_v4_4_2_update_medium_grain_clock_gating(
+ struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t data, def;
+ int i;
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ def = data = RREG32_SDMA(i, regSDMA_CLK_CTRL);
+ data &= ~(SDMA_CLK_CTRL__SOFT_OVERRIDE7_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE6_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE5_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE4_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE3_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE2_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE1_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE0_MASK);
+ if (def != data)
+ WREG32_SDMA(i, regSDMA_CLK_CTRL, data);
+ }
+ } else {
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ def = data = RREG32_SDMA(i, regSDMA_CLK_CTRL);
+ data |= (SDMA_CLK_CTRL__SOFT_OVERRIDE7_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE6_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE5_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE4_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE3_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE2_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE1_MASK |
+ SDMA_CLK_CTRL__SOFT_OVERRIDE0_MASK);
+ if (def != data)
+ WREG32_SDMA(i, regSDMA_CLK_CTRL, data);
+ }
+ }
+}
+
+
+static void sdma_v4_4_2_update_medium_grain_light_sleep(
+ struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t data, def;
+ int i;
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ /* 1-not override: enable sdma mem light sleep */
+ def = data = RREG32_SDMA(0, regSDMA_POWER_CNTL);
+ data |= SDMA_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
+ if (def != data)
+ WREG32_SDMA(0, regSDMA_POWER_CNTL, data);
+ }
+ } else {
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ /* 0-override:disable sdma mem light sleep */
+ def = data = RREG32_SDMA(0, regSDMA_POWER_CNTL);
+ data &= ~SDMA_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
+ if (def != data)
+ WREG32_SDMA(0, regSDMA_POWER_CNTL, data);
+ }
+ }
+}
+
+static int sdma_v4_4_2_set_clockgating_state(void *handle,
+ enum amd_clockgating_state state)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ if (amdgpu_sriov_vf(adev))
+ return 0;
+
+ sdma_v4_4_2_update_medium_grain_clock_gating(adev,
+ state == AMD_CG_STATE_GATE);
+ sdma_v4_4_2_update_medium_grain_light_sleep(adev,
+ state == AMD_CG_STATE_GATE);
+ return 0;
+}
+
+static int sdma_v4_4_2_set_powergating_state(void *handle,
+ enum amd_powergating_state state)
+{
+ return 0;
+}
+
+static void sdma_v4_4_2_get_clockgating_state(void *handle, u64 *flags)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int data;
+
+ if (amdgpu_sriov_vf(adev))
+ *flags = 0;
+
+ /* AMD_CG_SUPPORT_SDMA_MGCG */
+ data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, regSDMA_CLK_CTRL));
+ if (!(data & SDMA_CLK_CTRL__SOFT_OVERRIDE7_MASK))
+ *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
+
+ /* AMD_CG_SUPPORT_SDMA_LS */
+ data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, regSDMA_POWER_CNTL));
+ if (data & SDMA_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
+ *flags |= AMD_CG_SUPPORT_SDMA_LS;
+}
+
+const struct amd_ip_funcs sdma_v4_4_2_ip_funcs = {
+ .name = "sdma_v4_4_2",
+ .early_init = sdma_v4_4_2_early_init,
+ .late_init = sdma_v4_4_2_late_init,
+ .sw_init = sdma_v4_4_2_sw_init,
+ .sw_fini = sdma_v4_4_2_sw_fini,
+ .hw_init = sdma_v4_4_2_hw_init,
+ .hw_fini = sdma_v4_4_2_hw_fini,
+ .suspend = sdma_v4_4_2_suspend,
+ .resume = sdma_v4_4_2_resume,
+ .is_idle = sdma_v4_4_2_is_idle,
+ .wait_for_idle = sdma_v4_4_2_wait_for_idle,
+ .soft_reset = sdma_v4_4_2_soft_reset,
+ .set_clockgating_state = sdma_v4_4_2_set_clockgating_state,
+ .set_powergating_state = sdma_v4_4_2_set_powergating_state,
+ .get_clockgating_state = sdma_v4_4_2_get_clockgating_state,
+};
+
+static const struct amdgpu_ring_funcs sdma_v4_4_2_ring_funcs = {
+ .type = AMDGPU_RING_TYPE_SDMA,
+ .align_mask = 0xf,
+ .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
+ .support_64bit_ptrs = true,
+ .vmhub = AMDGPU_MMHUB_0,
+ .get_rptr = sdma_v4_4_2_ring_get_rptr,
+ .get_wptr = sdma_v4_4_2_ring_get_wptr,
+ .set_wptr = sdma_v4_4_2_ring_set_wptr,
+ .emit_frame_size =
+ 6 + /* sdma_v4_4_2_ring_emit_hdp_flush */
+ 3 + /* hdp invalidate */
+ 6 + /* sdma_v4_4_2_ring_emit_pipeline_sync */
+ /* sdma_v4_4_2_ring_emit_vm_flush */
+ SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
+ SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
+ 10 + 10 + 10, /* sdma_v4_4_2_ring_emit_fence x3 for user fence, vm fence */
+ .emit_ib_size = 7 + 6, /* sdma_v4_4_2_ring_emit_ib */
+ .emit_ib = sdma_v4_4_2_ring_emit_ib,
+ .emit_fence = sdma_v4_4_2_ring_emit_fence,
+ .emit_pipeline_sync = sdma_v4_4_2_ring_emit_pipeline_sync,
+ .emit_vm_flush = sdma_v4_4_2_ring_emit_vm_flush,
+ .emit_hdp_flush = sdma_v4_4_2_ring_emit_hdp_flush,
+ .test_ring = sdma_v4_4_2_ring_test_ring,
+ .test_ib = sdma_v4_4_2_ring_test_ib,
+ .insert_nop = sdma_v4_4_2_ring_insert_nop,
+ .pad_ib = sdma_v4_4_2_ring_pad_ib,
+ .emit_wreg = sdma_v4_4_2_ring_emit_wreg,
+ .emit_reg_wait = sdma_v4_4_2_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+};
+
+static const struct amdgpu_ring_funcs sdma_v4_4_2_page_ring_funcs = {
+ .type = AMDGPU_RING_TYPE_SDMA,
+ .align_mask = 0xf,
+ .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
+ .support_64bit_ptrs = true,
+ .vmhub = AMDGPU_MMHUB_0,
+ .get_rptr = sdma_v4_4_2_ring_get_rptr,
+ .get_wptr = sdma_v4_4_2_page_ring_get_wptr,
+ .set_wptr = sdma_v4_4_2_page_ring_set_wptr,
+ .emit_frame_size =
+ 6 + /* sdma_v4_4_2_ring_emit_hdp_flush */
+ 3 + /* hdp invalidate */
+ 6 + /* sdma_v4_4_2_ring_emit_pipeline_sync */
+ /* sdma_v4_4_2_ring_emit_vm_flush */
+ SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
+ SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
+ 10 + 10 + 10, /* sdma_v4_4_2_ring_emit_fence x3 for user fence, vm fence */
+ .emit_ib_size = 7 + 6, /* sdma_v4_4_2_ring_emit_ib */
+ .emit_ib = sdma_v4_4_2_ring_emit_ib,
+ .emit_fence = sdma_v4_4_2_ring_emit_fence,
+ .emit_pipeline_sync = sdma_v4_4_2_ring_emit_pipeline_sync,
+ .emit_vm_flush = sdma_v4_4_2_ring_emit_vm_flush,
+ .emit_hdp_flush = sdma_v4_4_2_ring_emit_hdp_flush,
+ .test_ring = sdma_v4_4_2_ring_test_ring,
+ .test_ib = sdma_v4_4_2_ring_test_ib,
+ .insert_nop = sdma_v4_4_2_ring_insert_nop,
+ .pad_ib = sdma_v4_4_2_ring_pad_ib,
+ .emit_wreg = sdma_v4_4_2_ring_emit_wreg,
+ .emit_reg_wait = sdma_v4_4_2_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+};
+
+static void sdma_v4_4_2_set_ring_funcs(struct amdgpu_device *adev)
+{
+ int i;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ adev->sdma.instance[i].ring.funcs = &sdma_v4_4_2_ring_funcs;
+ adev->sdma.instance[i].ring.me = i;
+ if (adev->sdma.has_page_queue) {
+ adev->sdma.instance[i].page.funcs =
+ &sdma_v4_4_2_page_ring_funcs;
+ adev->sdma.instance[i].page.me = i;
+ }
+ }
+}
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_trap_irq_funcs = {
+ .set = sdma_v4_4_2_set_trap_irq_state,
+ .process = sdma_v4_4_2_process_trap_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_illegal_inst_irq_funcs = {
+ .process = sdma_v4_4_2_process_illegal_inst_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_ecc_irq_funcs = {
+ .set = sdma_v4_4_2_set_ecc_irq_state,
+ .process = amdgpu_sdma_process_ecc_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_vm_hole_irq_funcs = {
+ .process = sdma_v4_4_2_process_vm_hole_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_doorbell_invalid_irq_funcs = {
+ .process = sdma_v4_4_2_process_doorbell_invalid_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_pool_timeout_irq_funcs = {
+ .process = sdma_v4_4_2_process_pool_timeout_irq,
+};
+
+static const struct amdgpu_irq_src_funcs sdma_v4_4_2_srbm_write_irq_funcs = {
+ .process = sdma_v4_4_2_process_srbm_write_irq,
+};
+
+static void sdma_v4_4_2_set_irq_funcs(struct amdgpu_device *adev)
+{
+ adev->sdma.trap_irq.num_types = adev->sdma.num_instances;
+ adev->sdma.ecc_irq.num_types = adev->sdma.num_instances;
+ adev->sdma.vm_hole_irq.num_types = adev->sdma.num_instances;
+ adev->sdma.doorbell_invalid_irq.num_types = adev->sdma.num_instances;
+ adev->sdma.pool_timeout_irq.num_types = adev->sdma.num_instances;
+ adev->sdma.srbm_write_irq.num_types = adev->sdma.num_instances;
+
+ adev->sdma.trap_irq.funcs = &sdma_v4_4_2_trap_irq_funcs;
+ adev->sdma.illegal_inst_irq.funcs = &sdma_v4_4_2_illegal_inst_irq_funcs;
+ adev->sdma.ecc_irq.funcs = &sdma_v4_4_2_ecc_irq_funcs;
+ adev->sdma.vm_hole_irq.funcs = &sdma_v4_4_2_vm_hole_irq_funcs;
+ adev->sdma.doorbell_invalid_irq.funcs = &sdma_v4_4_2_doorbell_invalid_irq_funcs;
+ adev->sdma.pool_timeout_irq.funcs = &sdma_v4_4_2_pool_timeout_irq_funcs;
+ adev->sdma.srbm_write_irq.funcs = &sdma_v4_4_2_srbm_write_irq_funcs;
+}
+
+/**
+ * sdma_v4_4_2_emit_copy_buffer - copy buffer using the sDMA engine
+ *
+ * @ib: indirect buffer to copy to
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @byte_count: number of bytes to xfer
+ * @tmz: if a secure copy should be used
+ *
+ * Copy GPU buffers using the DMA engine.
+ * Used by the amdgpu ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+static void sdma_v4_4_2_emit_copy_buffer(struct amdgpu_ib *ib,
+ uint64_t src_offset,
+ uint64_t dst_offset,
+ uint32_t byte_count,
+ bool tmz)
+{
+ ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
+ SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
+ SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0);
+ ib->ptr[ib->length_dw++] = byte_count - 1;
+ ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
+ ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
+ ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
+ ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
+ ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
+}
+
+/**
+ * sdma_v4_4_2_emit_fill_buffer - fill buffer using the sDMA engine
+ *
+ * @ib: indirect buffer to copy to
+ * @src_data: value to write to buffer
+ * @dst_offset: dst GPU address
+ * @byte_count: number of bytes to xfer
+ *
+ * Fill GPU buffers using the DMA engine.
+ */
+static void sdma_v4_4_2_emit_fill_buffer(struct amdgpu_ib *ib,
+ uint32_t src_data,
+ uint64_t dst_offset,
+ uint32_t byte_count)
+{
+ ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
+ ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
+ ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
+ ib->ptr[ib->length_dw++] = src_data;
+ ib->ptr[ib->length_dw++] = byte_count - 1;
+}
+
+static const struct amdgpu_buffer_funcs sdma_v4_4_2_buffer_funcs = {
+ .copy_max_bytes = 0x400000,
+ .copy_num_dw = 7,
+ .emit_copy_buffer = sdma_v4_4_2_emit_copy_buffer,
+
+ .fill_max_bytes = 0x400000,
+ .fill_num_dw = 5,
+ .emit_fill_buffer = sdma_v4_4_2_emit_fill_buffer,
+};
+
+static void sdma_v4_4_2_set_buffer_funcs(struct amdgpu_device *adev)
+{
+ adev->mman.buffer_funcs = &sdma_v4_4_2_buffer_funcs;
+ if (adev->sdma.has_page_queue)
+ adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].page;
+ else
+ adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
+}
+
+static const struct amdgpu_vm_pte_funcs sdma_v4_4_2_vm_pte_funcs = {
+ .copy_pte_num_dw = 7,
+ .copy_pte = sdma_v4_4_2_vm_copy_pte,
+
+ .write_pte = sdma_v4_4_2_vm_write_pte,
+ .set_pte_pde = sdma_v4_4_2_vm_set_pte_pde,
+};
+
+static void sdma_v4_4_2_set_vm_pte_funcs(struct amdgpu_device *adev)
+{
+ struct drm_gpu_scheduler *sched;
+ unsigned i;
+
+ adev->vm_manager.vm_pte_funcs = &sdma_v4_4_2_vm_pte_funcs;
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ if (adev->sdma.has_page_queue)
+ sched = &adev->sdma.instance[i].page.sched;
+ else
+ sched = &adev->sdma.instance[i].ring.sched;
+ adev->vm_manager.vm_pte_scheds[i] = sched;
+ }
+ adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
+}
+
+const struct amdgpu_ip_block_version sdma_v4_4_2_ip_block = {
+ .type = AMD_IP_BLOCK_TYPE_SDMA,
+ .major = 4,
+ .minor = 4,
+ .rev = 0,
+ .funcs = &sdma_v4_4_2_ip_funcs,
+};
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.h b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.h
new file mode 100644
index 000000000000..4814e8a074d6
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __SDMA_V4_4_2_H__
+#define __SDMA_V4_4_2_H__
+
+extern const struct amd_ip_funcs sdma_v4_4_2_ip_funcs;
+extern const struct amdgpu_ip_block_version sdma_v4_4_2_ip_block;
+
+#endif
--
2.39.2
