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Message-Id: <20190123000057.31477-8-oded.gabbay@gmail.com>
Date: Wed, 23 Jan 2019 02:00:49 +0200
From: Oded Gabbay <oded.gabbay@...il.com>
To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Cc: ogabbay@...ana.ai
Subject: [PATCH 07/15] habanalabs: add h/w queues module
This patch adds the H/W queues module and the code to initialize Goya's
various compute and DMA engines and their queues.
Goya has 5 DMA channels, 8 TPC engines and a single MME engine. For each
channel/engine, there is a H/W queue logic which is used to pass commands
from the user to the H/W. That logic is called QMAN.
There are two types of QMANs: external and internal. The DMA QMANs are
considered external while the TPC and MME QMANs are considered internal.
For each external queue there is a completion queue, which is located on
the Host memory.
The differences between external and internal QMANs are:
1. The location of the queue's memory. External QMANs are located on the
Host memory while internal QMANs are located on the on-chip memory.
2. The external QMAN write an entry to a completion queue and sends an
MSI-X interrupt upon completion of a command buffer that was given to
it. The internal QMAN doesn't do that.
Signed-off-by: Oded Gabbay <oded.gabbay@...il.com>
---
drivers/misc/habanalabs/Makefile | 2 +-
drivers/misc/habanalabs/device.c | 74 +-
drivers/misc/habanalabs/goya/goya.c | 1518 +++++++++++++++--
drivers/misc/habanalabs/goya/goyaP.h | 6 +
drivers/misc/habanalabs/habanalabs.h | 176 +-
drivers/misc/habanalabs/habanalabs_drv.c | 6 +
drivers/misc/habanalabs/hw_queue.c | 404 +++++
.../habanalabs/include/goya/goya_packets.h | 234 +++
.../habanalabs/include/habanalabs_device_if.h | 272 +++
drivers/misc/habanalabs/irq.c | 150 ++
10 files changed, 2721 insertions(+), 121 deletions(-)
create mode 100644 drivers/misc/habanalabs/hw_queue.c
create mode 100644 drivers/misc/habanalabs/include/goya/goya_packets.h
create mode 100644 drivers/misc/habanalabs/irq.c
diff --git a/drivers/misc/habanalabs/Makefile b/drivers/misc/habanalabs/Makefile
index 2530c9b78ca4..c07f3ccb57dc 100644
--- a/drivers/misc/habanalabs/Makefile
+++ b/drivers/misc/habanalabs/Makefile
@@ -5,7 +5,7 @@
obj-m := habanalabs.o
habanalabs-y := habanalabs_drv.o device.o context.o asid.o habanalabs_ioctl.o \
- command_buffer.o
+ command_buffer.o hw_queue.o irq.o
include $(src)/goya/Makefile
habanalabs-y += $(HL_GOYA_FILES)
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c
index 9fc7218a973c..98220628a467 100644
--- a/drivers/misc/habanalabs/device.c
+++ b/drivers/misc/habanalabs/device.c
@@ -170,13 +170,22 @@ static int device_early_init(struct hl_device *hdev)
if (rc)
goto early_fini;
+ hdev->cq_wq = alloc_workqueue("hl-free-jobs", WQ_UNBOUND, 0);
+ if (hdev->cq_wq == NULL) {
+ dev_err(hdev->dev, "Failed to allocate CQ workqueue\n");
+ goto asid_fini;
+ }
+
hl_cb_mgr_init(&hdev->kernel_cb_mgr);
mutex_init(&hdev->device_open);
+ mutex_init(&hdev->send_cpu_message_lock);
atomic_set(&hdev->fd_open_cnt, 0);
return 0;
+asid_fini:
+ hl_asid_fini(hdev);
early_fini:
if (hdev->asic_funcs->early_fini)
hdev->asic_funcs->early_fini(hdev);
@@ -192,9 +201,12 @@ static int device_early_init(struct hl_device *hdev)
*/
static void device_early_fini(struct hl_device *hdev)
{
+ mutex_destroy(&hdev->send_cpu_message_lock);
hl_cb_mgr_fini(hdev, &hdev->kernel_cb_mgr);
+ destroy_workqueue(hdev->cq_wq);
+
hl_asid_fini(hdev);
if (hdev->asic_funcs->early_fini)
@@ -273,7 +285,7 @@ int hl_device_resume(struct hl_device *hdev)
*/
int hl_device_init(struct hl_device *hdev, struct class *hclass)
{
- int rc;
+ int i, rc, cq_ready_cnt;
/* Create device */
rc = device_setup_cdev(hdev, hclass, hdev->id, &hl_ops);
@@ -294,11 +306,48 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
if (rc)
goto early_fini;
+ /*
+ * Initialize the H/W queues. Must be done before hw_init, because
+ * there the addresses of the kernel queue are being written to the
+ * registers of the device
+ */
+ rc = hl_hw_queues_create(hdev);
+ if (rc) {
+ dev_err(hdev->dev, "failed to initialize kernel queues\n");
+ goto sw_fini;
+ }
+
+ /*
+ * Initialize the completion queues. Must be done before hw_init,
+ * because there the addresses of the completion queues are being
+ * passed as arguments to request_irq
+ */
+ hdev->completion_queue =
+ kcalloc(hdev->asic_prop.completion_queues_count,
+ sizeof(*hdev->completion_queue), GFP_KERNEL);
+
+ if (!hdev->completion_queue) {
+ dev_err(hdev->dev, "failed to allocate completion queues\n");
+ rc = -ENOMEM;
+ goto hw_queues_destroy;
+ }
+
+ for (i = 0, cq_ready_cnt = 0;
+ i < hdev->asic_prop.completion_queues_count;
+ i++, cq_ready_cnt++) {
+ rc = hl_cq_init(hdev, &hdev->completion_queue[i], i);
+ if (rc) {
+ dev_err(hdev->dev,
+ "failed to initialize completion queue\n");
+ goto cq_fini;
+ }
+ }
+
/* Allocate the kernel context */
hdev->kernel_ctx = kzalloc(sizeof(*hdev->kernel_ctx), GFP_KERNEL);
if (!hdev->kernel_ctx) {
rc = -ENOMEM;
- goto sw_fini;
+ goto cq_fini;
}
hdev->user_ctx = NULL;
@@ -324,6 +373,14 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
hdev->disabled = false;
+ /* Check that the communication with the device is working */
+ rc = hdev->asic_funcs->test_queues(hdev);
+ if (rc) {
+ dev_err(hdev->dev, "Failed to detect if device is alive\n");
+ rc = 0;
+ goto out_disabled;
+ }
+
dev_notice(hdev->dev,
"Successfully added device to habanalabs driver\n");
@@ -335,6 +392,12 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
"kernel ctx is still alive on initialization failure\n");
free_ctx:
kfree(hdev->kernel_ctx);
+cq_fini:
+ for (i = 0 ; i < cq_ready_cnt ; i++)
+ hl_cq_fini(hdev, &hdev->completion_queue[i]);
+ kfree(hdev->completion_queue);
+hw_queues_destroy:
+ hl_hw_queues_destroy(hdev);
sw_fini:
hdev->asic_funcs->sw_fini(hdev);
early_fini:
@@ -364,6 +427,7 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
*/
void hl_device_fini(struct hl_device *hdev)
{
+ int i;
dev_info(hdev->dev, "Removing device\n");
/* Mark device as disabled */
@@ -378,6 +442,12 @@ void hl_device_fini(struct hl_device *hdev)
/* Reset the H/W. It will be in idle state after this returns */
hdev->asic_funcs->hw_fini(hdev, true);
+ for (i = 0 ; i < hdev->asic_prop.completion_queues_count ; i++)
+ hl_cq_fini(hdev, &hdev->completion_queue[i]);
+ kfree(hdev->completion_queue);
+
+ hl_hw_queues_destroy(hdev);
+
/* Call ASIC S/W finalize function */
hdev->asic_funcs->sw_fini(hdev);
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index f715e01838b3..08d5227eaf1d 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -98,6 +98,26 @@
static void goya_get_fixed_properties(struct hl_device *hdev)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
+ int i;
+
+ for (i = 0 ; i < NUMBER_OF_EXT_HW_QUEUES ; i++) {
+ prop->hw_queues_props[i].type = QUEUE_TYPE_EXT;
+ prop->hw_queues_props[i].kmd_only = 0;
+ }
+
+ for (; i < NUMBER_OF_EXT_HW_QUEUES + NUMBER_OF_CPU_HW_QUEUES ; i++) {
+ prop->hw_queues_props[i].type = QUEUE_TYPE_CPU;
+ prop->hw_queues_props[i].kmd_only = 1;
+ }
+
+ for (; i < NUMBER_OF_EXT_HW_QUEUES + NUMBER_OF_CPU_HW_QUEUES +
+ NUMBER_OF_INT_HW_QUEUES; i++) {
+ prop->hw_queues_props[i].type = QUEUE_TYPE_INT;
+ prop->hw_queues_props[i].kmd_only = 0;
+ }
+
+ for (; i < HL_MAX_QUEUES; i++)
+ prop->hw_queues_props[i].type = QUEUE_TYPE_NA;
prop->completion_queues_count = NUMBER_OF_CMPLT_QUEUES;
@@ -126,6 +146,18 @@ static void goya_get_fixed_properties(struct hl_device *hdev)
prop->high_pll = PLL_HIGH_DEFAULT;
}
+int goya_send_pci_access_msg(struct hl_device *hdev, u32 opcode)
+{
+ struct armcp_packet pkt;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.opcode = opcode;
+
+ return hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt,
+ sizeof(pkt), HL_DEVICE_TIMEOUT_USEC, NULL);
+}
+
/**
* goya_pci_bars_map - Map PCI BARS of Goya device
*
@@ -509,6 +541,8 @@ static int goya_sw_init(struct hl_device *hdev)
if (!goya)
return -ENOMEM;
+ goya->test_cpu_queue = goya_test_cpu_queue;
+
/* according to goya_init_iatu */
goya->ddr_bar_cur_addr = DRAM_PHYS_BASE;
hdev->asic_specific = goya;
@@ -595,6 +629,299 @@ int goya_sw_fini(struct hl_device *hdev)
return 0;
}
+static void goya_init_dma_qman(struct hl_device *hdev, int dma_id,
+ dma_addr_t bus_address)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ u32 mtr_base_lo, mtr_base_hi;
+ u32 so_base_lo, so_base_hi;
+ u32 gic_base_lo, gic_base_hi;
+ u32 reg_off = dma_id * (mmDMA_QM_1_PQ_PI - mmDMA_QM_0_PQ_PI);
+
+ mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+
+ WREG32(mmDMA_QM_0_PQ_BASE_LO + reg_off, lower_32_bits(bus_address));
+ WREG32(mmDMA_QM_0_PQ_BASE_HI + reg_off, upper_32_bits(bus_address));
+
+ WREG32(mmDMA_QM_0_PQ_SIZE + reg_off, ilog2(HL_QUEUE_LENGTH));
+ WREG32(mmDMA_QM_0_PQ_PI + reg_off, 0);
+ WREG32(mmDMA_QM_0_PQ_CI + reg_off, 0);
+
+ WREG32(mmDMA_QM_0_CP_MSG_BASE0_ADDR_LO + reg_off, mtr_base_lo);
+ WREG32(mmDMA_QM_0_CP_MSG_BASE0_ADDR_HI + reg_off, mtr_base_hi);
+ WREG32(mmDMA_QM_0_CP_MSG_BASE1_ADDR_LO + reg_off, so_base_lo);
+ WREG32(mmDMA_QM_0_CP_MSG_BASE1_ADDR_HI + reg_off, so_base_hi);
+ WREG32(mmDMA_QM_0_GLBL_ERR_ADDR_LO + reg_off, gic_base_lo);
+ WREG32(mmDMA_QM_0_GLBL_ERR_ADDR_HI + reg_off, gic_base_hi);
+ WREG32(mmDMA_QM_0_GLBL_ERR_WDATA + reg_off,
+ GOYA_ASYNC_EVENT_ID_DMA0_QM + dma_id);
+
+ /* PQ has buffer of 2 cache lines, while CQ has 8 lines */
+ WREG32(mmDMA_QM_0_PQ_CFG1 + reg_off, 0x00020002);
+ WREG32(mmDMA_QM_0_CQ_CFG1 + reg_off, 0x00080008);
+
+ if (dma_id == 0)
+ WREG32(mmDMA_QM_0_GLBL_PROT + reg_off, QMAN_DMA_FULLY_TRUSTED);
+ else
+ if (goya->hw_cap_initialized & HW_CAP_MMU)
+ WREG32(mmDMA_QM_0_GLBL_PROT + reg_off,
+ QMAN_DMA_PARTLY_TRUSTED);
+ else
+ WREG32(mmDMA_QM_0_GLBL_PROT + reg_off,
+ QMAN_DMA_FULLY_TRUSTED);
+
+ WREG32(mmDMA_QM_0_GLBL_ERR_CFG + reg_off, QMAN_DMA_ERR_MSG_EN);
+ WREG32(mmDMA_QM_0_GLBL_CFG0 + reg_off, QMAN_DMA_ENABLE);
+}
+
+static void goya_init_dma_ch(struct hl_device *hdev, int dma_id)
+{
+ u32 gic_base_lo, gic_base_hi;
+ u64 sob_addr;
+ u32 reg_off = dma_id * (mmDMA_CH_1_CFG1 - mmDMA_CH_0_CFG1);
+
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+
+ WREG32(mmDMA_CH_0_ERRMSG_ADDR_LO + reg_off, gic_base_lo);
+ WREG32(mmDMA_CH_0_ERRMSG_ADDR_HI + reg_off, gic_base_hi);
+ WREG32(mmDMA_CH_0_ERRMSG_WDATA + reg_off,
+ GOYA_ASYNC_EVENT_ID_DMA0_CH + dma_id);
+
+ if (dma_id) {
+ sob_addr = CFG_BASE + mmSYNC_MNGR_SOB_OBJ_1000 +
+ (dma_id - 1) * 4;
+ WREG32(mmDMA_CH_0_WR_COMP_ADDR_LO + reg_off,
+ lower_32_bits(sob_addr));
+ WREG32(mmDMA_CH_0_WR_COMP_ADDR_HI + reg_off,
+ upper_32_bits(sob_addr));
+ WREG32(mmDMA_CH_0_WR_COMP_WDATA + reg_off, 0x80000001);
+ }
+}
+
+/**
+ * goya_init_dma_qmans - Initialize QMAN DMA registers
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Initialize the H/W registers of the QMAN DMA channels
+ *
+ */
+static void goya_init_dma_qmans(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ struct hl_hw_queue *q;
+ dma_addr_t bus_address;
+ int i;
+
+ if (goya->hw_cap_initialized & HW_CAP_DMA)
+ return;
+
+ q = &hdev->kernel_queues[0];
+
+ for (i = 0 ; i < NUMBER_OF_EXT_HW_QUEUES ; i++, q++) {
+ bus_address = q->bus_address +
+ hdev->asic_prop.host_phys_base_address;
+
+ goya_init_dma_qman(hdev, i, bus_address);
+ goya_init_dma_ch(hdev, i);
+ }
+
+ goya->hw_cap_initialized |= HW_CAP_DMA;
+}
+
+/**
+ * goya_disable_external_queues - Disable external queues
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ */
+static void goya_disable_external_queues(struct hl_device *hdev)
+{
+ WREG32(mmDMA_QM_0_GLBL_CFG0, 0);
+ WREG32(mmDMA_QM_1_GLBL_CFG0, 0);
+ WREG32(mmDMA_QM_2_GLBL_CFG0, 0);
+ WREG32(mmDMA_QM_3_GLBL_CFG0, 0);
+ WREG32(mmDMA_QM_4_GLBL_CFG0, 0);
+}
+
+static int goya_stop_queue(struct hl_device *hdev, u32 cfg_reg,
+ u32 cp_sts_reg, u32 glbl_sts0_reg)
+{
+ int rc;
+ u32 status;
+
+ /* use the values of TPC0 as they are all the same*/
+
+ WREG32(cfg_reg, 1 << TPC0_QM_GLBL_CFG1_CP_STOP_SHIFT);
+
+ status = RREG32(cp_sts_reg);
+ if (status & TPC0_QM_CP_STS_FENCE_IN_PROGRESS_MASK) {
+ rc = hl_poll_timeout(
+ hdev,
+ cp_sts_reg,
+ status,
+ !(status & TPC0_QM_CP_STS_FENCE_IN_PROGRESS_MASK),
+ 1000,
+ QMAN_FENCE_TIMEOUT_USEC);
+
+ /* if QMAN is stuck in fence no need to check for stop */
+ if (rc)
+ return 0;
+ }
+
+ rc = hl_poll_timeout(
+ hdev,
+ glbl_sts0_reg,
+ status,
+ (status & TPC0_QM_GLBL_STS0_CP_IS_STOP_MASK),
+ 1000,
+ QMAN_STOP_TIMEOUT_USEC);
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Timeout while waiting for QMAN to stop\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * goya_stop_external_queues - Stop external queues
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Returns 0 on success
+ *
+ */
+static int goya_stop_external_queues(struct hl_device *hdev)
+{
+ int rc = goya_stop_queue(hdev,
+ mmDMA_QM_0_GLBL_CFG1,
+ mmDMA_QM_0_CP_STS,
+ mmDMA_QM_0_GLBL_STS0);
+
+ if (rc)
+ dev_err(hdev->dev, "failed to stop DMA QMAN 0\n");
+
+ rc = goya_stop_queue(hdev,
+ mmDMA_QM_1_GLBL_CFG1,
+ mmDMA_QM_1_CP_STS,
+ mmDMA_QM_1_GLBL_STS0);
+
+ if (rc)
+ dev_err(hdev->dev, "failed to stop DMA QMAN 1\n");
+
+ rc = goya_stop_queue(hdev,
+ mmDMA_QM_2_GLBL_CFG1,
+ mmDMA_QM_2_CP_STS,
+ mmDMA_QM_2_GLBL_STS0);
+
+ if (rc)
+ dev_err(hdev->dev, "failed to stop DMA QMAN 2\n");
+
+ rc = goya_stop_queue(hdev,
+ mmDMA_QM_3_GLBL_CFG1,
+ mmDMA_QM_3_CP_STS,
+ mmDMA_QM_3_GLBL_STS0);
+
+ if (rc)
+ dev_err(hdev->dev, "failed to stop DMA QMAN 3\n");
+
+ rc = goya_stop_queue(hdev,
+ mmDMA_QM_4_GLBL_CFG1,
+ mmDMA_QM_4_CP_STS,
+ mmDMA_QM_4_GLBL_STS0);
+
+ if (rc)
+ dev_err(hdev->dev, "failed to stop DMA QMAN 4\n");
+
+ return rc;
+}
+
+static void goya_resume_external_queues(struct hl_device *hdev)
+{
+ WREG32(mmDMA_QM_0_GLBL_CFG1, 0);
+ WREG32(mmDMA_QM_1_GLBL_CFG1, 0);
+ WREG32(mmDMA_QM_2_GLBL_CFG1, 0);
+ WREG32(mmDMA_QM_3_GLBL_CFG1, 0);
+ WREG32(mmDMA_QM_4_GLBL_CFG1, 0);
+}
+
+/**
+ * goya_init_cpu_queues - Initialize PQ/CQ/EQ of CPU
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Returns 0 on success
+ *
+ */
+int goya_init_cpu_queues(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ dma_addr_t bus_address;
+ u32 status;
+ struct hl_hw_queue *cpu_pq = &hdev->kernel_queues[GOYA_QUEUE_ID_CPU_PQ];
+ int err;
+
+ if (!hdev->cpu_queues_enable)
+ return 0;
+
+ if (goya->hw_cap_initialized & HW_CAP_CPU_Q)
+ return 0;
+
+ bus_address = cpu_pq->bus_address +
+ hdev->asic_prop.host_phys_base_address;
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_0, lower_32_bits(bus_address));
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_1, upper_32_bits(bus_address));
+
+ bus_address = hdev->cpu_accessible_dma_address +
+ hdev->asic_prop.host_phys_base_address;
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_8, lower_32_bits(bus_address));
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_9, upper_32_bits(bus_address));
+
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_5, HL_QUEUE_SIZE_IN_BYTES);
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_10, CPU_ACCESSIBLE_MEM_SIZE);
+
+ /* Used for EQ CI */
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_6, 0);
+
+ WREG32(mmCPU_IF_PF_PQ_PI, 0);
+
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_7, PQ_INIT_STATUS_READY_FOR_CP);
+
+ WREG32(mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR,
+ GOYA_ASYNC_EVENT_ID_PI_UPDATE);
+
+ err = hl_poll_timeout(
+ hdev,
+ mmPSOC_GLOBAL_CONF_SCRATCHPAD_7,
+ status,
+ (status == PQ_INIT_STATUS_READY_FOR_HOST),
+ 1000,
+ GOYA_CPU_TIMEOUT_USEC);
+
+ if (err) {
+ dev_err(hdev->dev,
+ "Failed to communicate with ARM CPU (ArmCP timeout)\n");
+ return -EIO;
+ }
+
+ goya->hw_cap_initialized |= HW_CAP_CPU_Q;
+ return 0;
+}
+
/**
* goya_init_pll - Initialize pll registers
*
@@ -1960,152 +2287,646 @@ static void goya_init_golden_registers(struct hl_device *hdev)
goya->hw_cap_initialized |= HW_CAP_GOLDEN;
}
-
-/**
- * goya_push_uboot_to_device - Push u-boot FW code to device
- *
- * @hdev: pointer to hl_device structure
- *
- * Copy u-boot fw code from firmware file to SRAM BAR.
- * Returns 0 on success
- *
- */
-static int goya_push_uboot_to_device(struct hl_device *hdev)
+static void goya_init_mme_qman(struct hl_device *hdev)
{
- char fw_name[200];
- const u64 *fw_data;
- void __iomem *dst;
- size_t fw_size, i;
- int rc;
+ u32 mtr_base_lo, mtr_base_hi;
+ u32 so_base_lo, so_base_hi;
+ u32 gic_base_lo, gic_base_hi;
+ u64 qman_base_addr;
- snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-u-boot.bin");
+ mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
- rc = request_firmware(&hdev->spl_fw, fw_name, hdev->dev);
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
- if (rc) {
- dev_err(hdev->dev, "Failed to request u-boot fw image\n");
- goto out;
- }
+ qman_base_addr = hdev->asic_prop.sram_base_address +
+ MME_QMAN_BASE_OFFSET;
- fw_size = hdev->spl_fw->size;
- if ((fw_size % 4) != 0) {
- dev_err(hdev->dev, "illegal u-boot firmware size %lu\n",
- fw_size);
- rc = -EINVAL;
- goto out;
- }
+ WREG32(mmMME_QM_PQ_BASE_LO, lower_32_bits(qman_base_addr));
+ WREG32(mmMME_QM_PQ_BASE_HI, upper_32_bits(qman_base_addr));
+ WREG32(mmMME_QM_PQ_SIZE, ilog2(MME_QMAN_LENGTH));
+ WREG32(mmMME_QM_PQ_PI, 0);
+ WREG32(mmMME_QM_PQ_CI, 0);
+ WREG32(mmMME_QM_CP_LDMA_SRC_BASE_LO_OFFSET, 0x10C0);
+ WREG32(mmMME_QM_CP_LDMA_SRC_BASE_HI_OFFSET, 0x10C4);
+ WREG32(mmMME_QM_CP_LDMA_TSIZE_OFFSET, 0x10C8);
+ WREG32(mmMME_QM_CP_LDMA_COMMIT_OFFSET, 0x10CC);
- dev_dbg(hdev->dev, "u-boot firmware size == %lu\n", fw_size);
+ WREG32(mmMME_QM_CP_MSG_BASE0_ADDR_LO, mtr_base_lo);
+ WREG32(mmMME_QM_CP_MSG_BASE0_ADDR_HI, mtr_base_hi);
+ WREG32(mmMME_QM_CP_MSG_BASE1_ADDR_LO, so_base_lo);
+ WREG32(mmMME_QM_CP_MSG_BASE1_ADDR_HI, so_base_hi);
- fw_data = (const u64 *) hdev->spl_fw->data;
- dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + UBOOT_FW_OFFSET;
+ /* QMAN CQ has 8 cache lines */
+ WREG32(mmMME_QM_CQ_CFG1, 0x00080008);
- if ((hdev->spl_fw->size % 8) != 0)
- fw_size -= 8;
+ WREG32(mmMME_QM_GLBL_ERR_ADDR_LO, gic_base_lo);
+ WREG32(mmMME_QM_GLBL_ERR_ADDR_HI, gic_base_hi);
- for (i = 0 ; i < fw_size ; i += 8, fw_data++, dst += 8) {
- if (!(i & (0x80000 - 1)))
- dev_dbg(hdev->dev,
- "u-boot copied so far %lu out of %lu",
- i, fw_size);
+ WREG32(mmMME_QM_GLBL_ERR_WDATA, GOYA_ASYNC_EVENT_ID_MME_QM);
- writeq(*fw_data, dst);
- }
+ WREG32(mmMME_QM_GLBL_ERR_CFG, QMAN_MME_ERR_MSG_EN);
- if ((hdev->spl_fw->size % 8) != 0)
- writel(*(const u32 *) fw_data, dst);
+ WREG32(mmMME_QM_GLBL_PROT, QMAN_MME_ERR_PROT);
-out:
- release_firmware(hdev->spl_fw);
- return rc;
+ WREG32(mmMME_QM_GLBL_CFG0, QMAN_MME_ENABLE);
}
-/**
- * goya_push_linux_to_device - Push LINUX FW code to device
- *
- * @hdev: pointer to hl_device structure
- *
- * Copy LINXU fw code from firmware file to DDR BAR.
- * Returns 0 on success
- *
- */
-static int goya_push_linux_to_device(struct hl_device *hdev)
+static void goya_init_mme_cmdq(struct hl_device *hdev)
{
- char fw_name[200];
- const u64 *fw_data;
- void __iomem *dst;
- size_t fw_size, i;
- int rc;
+ u32 mtr_base_lo, mtr_base_hi;
+ u32 so_base_lo, so_base_hi;
+ u32 gic_base_lo, gic_base_hi;
+ u64 qman_base_addr;
- snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
+ mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
- rc = request_firmware(&hdev->spl_fw, fw_name, hdev->dev);
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
- if (rc) {
- dev_err(hdev->dev, "Failed to request Linux fw image\n");
- goto out;
- }
+ qman_base_addr = hdev->asic_prop.sram_base_address +
+ MME_QMAN_BASE_OFFSET;
- fw_size = hdev->spl_fw->size;
- if ((fw_size % 4) != 0) {
- dev_err(hdev->dev, "illegal Linux firmware size %lu\n",
- fw_size);
- rc = -EINVAL;
- goto out;
- }
+ WREG32(mmMME_CMDQ_CP_MSG_BASE0_ADDR_LO, mtr_base_lo);
+ WREG32(mmMME_CMDQ_CP_MSG_BASE0_ADDR_HI, mtr_base_hi);
+ WREG32(mmMME_CMDQ_CP_MSG_BASE1_ADDR_LO, so_base_lo);
+ WREG32(mmMME_CMDQ_CP_MSG_BASE1_ADDR_HI, so_base_hi);
- dev_dbg(hdev->dev, "Linux firmware size == %lu\n", fw_size);
+ /* CMDQ CQ has 20 cache lines */
+ WREG32(mmMME_CMDQ_CQ_CFG1, 0x00140014);
- fw_data = (const u64 *) hdev->spl_fw->data;
- dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
+ WREG32(mmMME_CMDQ_GLBL_ERR_ADDR_LO, gic_base_lo);
+ WREG32(mmMME_CMDQ_GLBL_ERR_ADDR_HI, gic_base_hi);
- if ((hdev->spl_fw->size % 8) != 0)
- fw_size -= 8;
+ WREG32(mmMME_CMDQ_GLBL_ERR_WDATA, GOYA_ASYNC_EVENT_ID_MME_CMDQ);
- for (i = 0 ; i < fw_size ; i += 8, fw_data++, dst += 8) {
- if (!(i & (0x80000 - 1))) {
- dev_dbg(hdev->dev,
- "Linux copied so far %lu out of %lu",
- i, fw_size);
- usleep_range(20, 100);
- }
- writeq(*fw_data, dst);
- }
+ WREG32(mmMME_CMDQ_GLBL_ERR_CFG, CMDQ_MME_ERR_MSG_EN);
- if ((hdev->spl_fw->size % 8) != 0)
- writel(*(const u32 *) fw_data, dst);
+ WREG32(mmMME_CMDQ_GLBL_PROT, CMDQ_MME_ERR_PROT);
-out:
- release_firmware(hdev->spl_fw);
- return rc;
+ WREG32(mmMME_CMDQ_GLBL_CFG0, CMDQ_MME_ENABLE);
}
-static int goya_pldm_init_cpu(struct hl_device *hdev)
+static void goya_init_mme_qmans(struct hl_device *hdev)
{
- u32 val, unit_rst_val;
- int rc;
+ struct goya_device *goya = hdev->asic_specific;
+ u32 so_base_lo, so_base_hi;
- /* Must initialize SRAM scrambler before pushing u-boot to SRAM */
- goya_init_golden_registers(hdev);
+ if (goya->hw_cap_initialized & HW_CAP_MME)
+ return;
- /* Put ARM cores into reset */
- WREG32(mmCPU_CA53_CFG_ARM_RST_CONTROL, CPU_RESET_ASSERT);
- val = RREG32(mmCPU_CA53_CFG_ARM_RST_CONTROL);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
- /* Reset the CA53 MACRO */
- unit_rst_val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
- WREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N, CA53_RESET);
- val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
- WREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N, unit_rst_val);
- val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
+ WREG32(mmMME_SM_BASE_ADDRESS_LOW, so_base_lo);
+ WREG32(mmMME_SM_BASE_ADDRESS_HIGH, so_base_hi);
- rc = goya_push_uboot_to_device(hdev);
- if (rc)
- return rc;
+ goya_init_mme_qman(hdev);
+ goya_init_mme_cmdq(hdev);
- rc = goya_push_linux_to_device(hdev);
- if (rc)
- return rc;
+ goya->hw_cap_initialized |= HW_CAP_MME;
+}
+
+static void goya_init_tpc_qman(struct hl_device *hdev, u32 base_off, int tpc_id)
+{
+ u32 mtr_base_lo, mtr_base_hi;
+ u32 so_base_lo, so_base_hi;
+ u32 gic_base_lo, gic_base_hi;
+ u64 qman_base_addr;
+ u32 reg_off = tpc_id * (mmTPC1_QM_PQ_PI - mmTPC0_QM_PQ_PI);
+
+ mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+
+ qman_base_addr = hdev->asic_prop.sram_base_address + base_off;
+
+ WREG32(mmTPC0_QM_PQ_BASE_LO + reg_off, lower_32_bits(qman_base_addr));
+ WREG32(mmTPC0_QM_PQ_BASE_HI + reg_off, upper_32_bits(qman_base_addr));
+ WREG32(mmTPC0_QM_PQ_SIZE + reg_off, ilog2(TPC_QMAN_LENGTH));
+ WREG32(mmTPC0_QM_PQ_PI + reg_off, 0);
+ WREG32(mmTPC0_QM_PQ_CI + reg_off, 0);
+ WREG32(mmTPC0_QM_CP_LDMA_SRC_BASE_LO_OFFSET + reg_off, 0x10C0);
+ WREG32(mmTPC0_QM_CP_LDMA_SRC_BASE_HI_OFFSET + reg_off, 0x10C4);
+ WREG32(mmTPC0_QM_CP_LDMA_TSIZE_OFFSET + reg_off, 0x10C8);
+ WREG32(mmTPC0_QM_CP_LDMA_COMMIT_OFFSET + reg_off, 0x10CC);
+
+ WREG32(mmTPC0_QM_CP_MSG_BASE0_ADDR_LO + reg_off, mtr_base_lo);
+ WREG32(mmTPC0_QM_CP_MSG_BASE0_ADDR_HI + reg_off, mtr_base_hi);
+ WREG32(mmTPC0_QM_CP_MSG_BASE1_ADDR_LO + reg_off, so_base_lo);
+ WREG32(mmTPC0_QM_CP_MSG_BASE1_ADDR_HI + reg_off, so_base_hi);
+
+ WREG32(mmTPC0_QM_CQ_CFG1 + reg_off, 0x00080008);
+
+ WREG32(mmTPC0_QM_GLBL_ERR_ADDR_LO + reg_off, gic_base_lo);
+ WREG32(mmTPC0_QM_GLBL_ERR_ADDR_HI + reg_off, gic_base_hi);
+
+ WREG32(mmTPC0_QM_GLBL_ERR_WDATA + reg_off,
+ GOYA_ASYNC_EVENT_ID_TPC0_QM + tpc_id);
+
+ WREG32(mmTPC0_QM_GLBL_ERR_CFG + reg_off, QMAN_TPC_ERR_MSG_EN);
+
+ WREG32(mmTPC0_QM_GLBL_PROT + reg_off, QMAN_TPC_ERR_PROT);
+
+ WREG32(mmTPC0_QM_GLBL_CFG0 + reg_off, QMAN_TPC_ENABLE);
+}
+
+static void goya_init_tpc_cmdq(struct hl_device *hdev, int tpc_id)
+{
+ u32 mtr_base_lo, mtr_base_hi;
+ u32 so_base_lo, so_base_hi;
+ u32 gic_base_lo, gic_base_hi;
+ u32 reg_off = tpc_id * (mmTPC1_CMDQ_CQ_CFG1 - mmTPC0_CMDQ_CQ_CFG1);
+
+ mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0);
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+
+ gic_base_lo =
+ lower_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+ gic_base_hi =
+ upper_32_bits(CFG_BASE + mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR);
+
+ WREG32(mmTPC0_CMDQ_CP_MSG_BASE0_ADDR_LO + reg_off, mtr_base_lo);
+ WREG32(mmTPC0_CMDQ_CP_MSG_BASE0_ADDR_HI + reg_off, mtr_base_hi);
+ WREG32(mmTPC0_CMDQ_CP_MSG_BASE1_ADDR_LO + reg_off, so_base_lo);
+ WREG32(mmTPC0_CMDQ_CP_MSG_BASE1_ADDR_HI + reg_off, so_base_hi);
+
+ WREG32(mmTPC0_CMDQ_CQ_CFG1 + reg_off, 0x00140014);
+
+ WREG32(mmTPC0_CMDQ_GLBL_ERR_ADDR_LO + reg_off, gic_base_lo);
+ WREG32(mmTPC0_CMDQ_GLBL_ERR_ADDR_HI + reg_off, gic_base_hi);
+
+ WREG32(mmTPC0_CMDQ_GLBL_ERR_WDATA + reg_off,
+ GOYA_ASYNC_EVENT_ID_TPC0_CMDQ + tpc_id);
+
+ WREG32(mmTPC0_CMDQ_GLBL_ERR_CFG + reg_off, CMDQ_TPC_ERR_MSG_EN);
+
+ WREG32(mmTPC0_CMDQ_GLBL_PROT + reg_off, CMDQ_TPC_ERR_PROT);
+
+ WREG32(mmTPC0_CMDQ_GLBL_CFG0 + reg_off, CMDQ_TPC_ENABLE);
+}
+
+static void goya_init_tpc_qmans(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ u32 so_base_lo, so_base_hi;
+ u32 cfg_off = mmTPC1_CFG_SM_BASE_ADDRESS_LOW -
+ mmTPC0_CFG_SM_BASE_ADDRESS_LOW;
+ int i;
+
+ if (goya->hw_cap_initialized & HW_CAP_TPC)
+ return;
+
+ so_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+ so_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_SOB_OBJ_0);
+
+ for (i = 0 ; i < TPC_MAX_NUM ; i++) {
+ WREG32(mmTPC0_CFG_SM_BASE_ADDRESS_LOW + i * cfg_off,
+ so_base_lo);
+ WREG32(mmTPC0_CFG_SM_BASE_ADDRESS_HIGH + i * cfg_off,
+ so_base_hi);
+ }
+
+ goya_init_tpc_qman(hdev, TPC0_QMAN_BASE_OFFSET, 0);
+ goya_init_tpc_qman(hdev, TPC1_QMAN_BASE_OFFSET, 1);
+ goya_init_tpc_qman(hdev, TPC2_QMAN_BASE_OFFSET, 2);
+ goya_init_tpc_qman(hdev, TPC3_QMAN_BASE_OFFSET, 3);
+ goya_init_tpc_qman(hdev, TPC4_QMAN_BASE_OFFSET, 4);
+ goya_init_tpc_qman(hdev, TPC5_QMAN_BASE_OFFSET, 5);
+ goya_init_tpc_qman(hdev, TPC6_QMAN_BASE_OFFSET, 6);
+ goya_init_tpc_qman(hdev, TPC7_QMAN_BASE_OFFSET, 7);
+
+ for (i = 0 ; i < TPC_MAX_NUM ; i++)
+ goya_init_tpc_cmdq(hdev, i);
+
+ goya->hw_cap_initialized |= HW_CAP_TPC;
+}
+
+/**
+ * goya_disable_internal_queues - Disable internal queues
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ */
+static void goya_disable_internal_queues(struct hl_device *hdev)
+{
+ WREG32(mmMME_QM_GLBL_CFG0, 0);
+ WREG32(mmMME_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC0_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC0_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC1_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC1_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC2_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC2_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC3_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC3_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC4_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC4_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC5_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC5_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC6_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC6_CMDQ_GLBL_CFG0, 0);
+
+ WREG32(mmTPC7_QM_GLBL_CFG0, 0);
+ WREG32(mmTPC7_CMDQ_GLBL_CFG0, 0);
+}
+
+/**
+ * goya_stop_internal_queues - Stop internal queues
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Returns 0 on success
+ *
+ */
+static int goya_stop_internal_queues(struct hl_device *hdev)
+{
+ int rc, retval = 0;
+
+ rc = goya_stop_queue(hdev,
+ mmMME_QM_GLBL_CFG1,
+ mmMME_QM_CP_STS,
+ mmMME_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop MME QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmMME_CMDQ_GLBL_CFG1,
+ mmMME_CMDQ_CP_STS,
+ mmMME_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop MME CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC0_QM_GLBL_CFG1,
+ mmTPC0_QM_CP_STS,
+ mmTPC0_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 0 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC0_CMDQ_GLBL_CFG1,
+ mmTPC0_CMDQ_CP_STS,
+ mmTPC0_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 0 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC1_QM_GLBL_CFG1,
+ mmTPC1_QM_CP_STS,
+ mmTPC1_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 1 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC1_CMDQ_GLBL_CFG1,
+ mmTPC1_CMDQ_CP_STS,
+ mmTPC1_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 1 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC2_QM_GLBL_CFG1,
+ mmTPC2_QM_CP_STS,
+ mmTPC2_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 2 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC2_CMDQ_GLBL_CFG1,
+ mmTPC2_CMDQ_CP_STS,
+ mmTPC2_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 2 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC3_QM_GLBL_CFG1,
+ mmTPC3_QM_CP_STS,
+ mmTPC3_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 3 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC3_CMDQ_GLBL_CFG1,
+ mmTPC3_CMDQ_CP_STS,
+ mmTPC3_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 3 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC4_QM_GLBL_CFG1,
+ mmTPC4_QM_CP_STS,
+ mmTPC4_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 4 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC4_CMDQ_GLBL_CFG1,
+ mmTPC4_CMDQ_CP_STS,
+ mmTPC4_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 4 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC5_QM_GLBL_CFG1,
+ mmTPC5_QM_CP_STS,
+ mmTPC5_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 5 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC5_CMDQ_GLBL_CFG1,
+ mmTPC5_CMDQ_CP_STS,
+ mmTPC5_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 5 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC6_QM_GLBL_CFG1,
+ mmTPC6_QM_CP_STS,
+ mmTPC6_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 6 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC6_CMDQ_GLBL_CFG1,
+ mmTPC6_CMDQ_CP_STS,
+ mmTPC6_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 6 CMDQ\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC7_QM_GLBL_CFG1,
+ mmTPC7_QM_CP_STS,
+ mmTPC7_QM_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 7 QMAN\n");
+ retval = -EIO;
+ }
+
+ rc = goya_stop_queue(hdev,
+ mmTPC7_CMDQ_GLBL_CFG1,
+ mmTPC7_CMDQ_CP_STS,
+ mmTPC7_CMDQ_GLBL_STS0);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop TPC 7 CMDQ\n");
+ retval = -EIO;
+ }
+
+ return rc;
+}
+
+static void goya_resume_internal_queues(struct hl_device *hdev)
+{
+ WREG32(mmMME_QM_GLBL_CFG1, 0);
+ WREG32(mmMME_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC0_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC0_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC1_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC1_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC2_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC2_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC3_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC3_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC4_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC4_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC5_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC5_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC6_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC6_CMDQ_GLBL_CFG1, 0);
+
+ WREG32(mmTPC7_QM_GLBL_CFG1, 0);
+ WREG32(mmTPC7_CMDQ_GLBL_CFG1, 0);
+}
+
+
+/**
+ * goya_push_uboot_to_device - Push u-boot FW code to device
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Copy u-boot fw code from firmware file to SRAM BAR.
+ * Returns 0 on success
+ *
+ */
+static int goya_push_uboot_to_device(struct hl_device *hdev)
+{
+ char fw_name[200];
+ const u64 *fw_data;
+ void __iomem *dst;
+ size_t fw_size, i;
+ int rc;
+
+ snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-u-boot.bin");
+
+ rc = request_firmware(&hdev->spl_fw, fw_name, hdev->dev);
+
+ if (rc) {
+ dev_err(hdev->dev, "Failed to request u-boot fw image\n");
+ goto out;
+ }
+
+ fw_size = hdev->spl_fw->size;
+ if ((fw_size % 4) != 0) {
+ dev_err(hdev->dev, "illegal u-boot firmware size %lu\n",
+ fw_size);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ dev_dbg(hdev->dev, "u-boot firmware size == %lu\n", fw_size);
+
+ fw_data = (const u64 *) hdev->spl_fw->data;
+ dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + UBOOT_FW_OFFSET;
+
+ if ((hdev->spl_fw->size % 8) != 0)
+ fw_size -= 8;
+
+ for (i = 0 ; i < fw_size ; i += 8, fw_data++, dst += 8) {
+ if (!(i & (0x80000 - 1)))
+ dev_dbg(hdev->dev,
+ "u-boot copied so far %lu out of %lu",
+ i, fw_size);
+
+ writeq(*fw_data, dst);
+ }
+
+ if ((hdev->spl_fw->size % 8) != 0)
+ writel(*(const u32 *) fw_data, dst);
+
+out:
+ release_firmware(hdev->spl_fw);
+ return rc;
+}
+
+/**
+ * goya_push_linux_to_device - Push LINUX FW code to device
+ *
+ * @hdev: pointer to hl_device structure
+ *
+ * Copy LINXU fw code from firmware file to DDR BAR.
+ * Returns 0 on success
+ *
+ */
+static int goya_push_linux_to_device(struct hl_device *hdev)
+{
+ char fw_name[200];
+ const u64 *fw_data;
+ void __iomem *dst;
+ size_t fw_size, i;
+ int rc;
+
+ snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
+
+ rc = request_firmware(&hdev->spl_fw, fw_name, hdev->dev);
+
+ if (rc) {
+ dev_err(hdev->dev, "Failed to request Linux fw image\n");
+ goto out;
+ }
+
+ fw_size = hdev->spl_fw->size;
+ if ((fw_size % 4) != 0) {
+ dev_err(hdev->dev, "illegal Linux firmware size %lu\n",
+ fw_size);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ dev_dbg(hdev->dev, "Linux firmware size == %lu\n", fw_size);
+
+ fw_data = (const u64 *) hdev->spl_fw->data;
+ dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
+
+ if ((hdev->spl_fw->size % 8) != 0)
+ fw_size -= 8;
+
+ for (i = 0 ; i < fw_size ; i += 8, fw_data++, dst += 8) {
+ if (!(i & (0x80000 - 1))) {
+ dev_dbg(hdev->dev,
+ "Linux copied so far %lu out of %lu",
+ i, fw_size);
+ usleep_range(20, 100);
+ }
+ writeq(*fw_data, dst);
+ }
+
+ if ((hdev->spl_fw->size % 8) != 0)
+ writel(*(const u32 *) fw_data, dst);
+
+out:
+ release_firmware(hdev->spl_fw);
+ return rc;
+}
+
+static int goya_pldm_init_cpu(struct hl_device *hdev)
+{
+ u32 val, unit_rst_val;
+ int rc;
+
+ /* Must initialize SRAM scrambler before pushing u-boot to SRAM */
+ goya_init_golden_registers(hdev);
+
+ /* Put ARM cores into reset */
+ WREG32(mmCPU_CA53_CFG_ARM_RST_CONTROL, CPU_RESET_ASSERT);
+ val = RREG32(mmCPU_CA53_CFG_ARM_RST_CONTROL);
+
+ /* Reset the CA53 MACRO */
+ unit_rst_val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
+ WREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N, CA53_RESET);
+ val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
+ WREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N, unit_rst_val);
+ val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);
+
+ rc = goya_push_uboot_to_device(hdev);
+ if (rc)
+ return rc;
+
+ rc = goya_push_linux_to_device(hdev);
+ if (rc)
+ return rc;
WREG32(mmPSOC_GLOBAL_CONF_UBOOT_MAGIC, KMD_MSG_FIT_RDY);
WREG32(mmPSOC_GLOBAL_CONF_WARM_REBOOT, CPU_BOOT_STATUS_NA);
@@ -2339,6 +3160,19 @@ static int goya_hw_init(struct hl_device *hdev)
goya_init_security(hdev);
+ goya_init_dma_qmans(hdev);
+
+ goya_init_mme_qmans(hdev);
+
+ goya_init_tpc_qmans(hdev);
+
+ rc = goya_init_cpu_queues(hdev);
+ if (rc) {
+ dev_err(hdev->dev, "failed to initialize CPU H/W queues %d\n",
+ rc);
+ goto disable_queues;
+ }
+
/* CPU initialization is finished, we can now move to 48 bit DMA mask */
rc = pci_set_dma_mask(hdev->pdev, DMA_BIT_MASK(48));
if (rc) {
@@ -2347,7 +3181,7 @@ static int goya_hw_init(struct hl_device *hdev)
if (rc) {
dev_err(hdev->dev,
"Unable to set pci dma mask to 32 bits\n");
- return rc;
+ goto disable_pci_access;
}
}
@@ -2359,7 +3193,7 @@ static int goya_hw_init(struct hl_device *hdev)
if (rc) {
dev_err(hdev->dev,
"Unable to set pci consistent dma mask to 32 bits\n");
- return rc;
+ goto disable_pci_access;
}
}
@@ -2367,6 +3201,14 @@ static int goya_hw_init(struct hl_device *hdev)
val = RREG32(mmPCIE_DBI_DEVICE_ID_VENDOR_ID_REG);
return 0;
+
+disable_pci_access:
+ goya_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
+disable_queues:
+ goya_disable_internal_queues(hdev);
+ goya_disable_external_queues(hdev);
+
+ return rc;
}
/**
@@ -2473,12 +3315,40 @@ static void goya_hw_fini(struct hl_device *hdev, bool hard_reset)
int goya_suspend(struct hl_device *hdev)
{
- return 0;
+ int rc;
+
+ rc = goya_stop_internal_queues(hdev);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop internal queues\n");
+ return rc;
+ }
+
+ rc = goya_stop_external_queues(hdev);
+
+ if (rc) {
+ dev_err(hdev->dev, "failed to stop external queues\n");
+ return rc;
+ }
+
+ rc = goya_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
+ if (rc)
+ dev_err(hdev->dev, "Failed to disable PCI access from CPU\n");
+
+ return rc;
}
int goya_resume(struct hl_device *hdev)
{
- return 0;
+ int rc;
+
+ goya_resume_external_queues(hdev);
+ goya_resume_internal_queues(hdev);
+
+ rc = goya_send_pci_access_msg(hdev, ARMCP_PACKET_ENABLE_PCI_ACCESS);
+ if (rc)
+ dev_err(hdev->dev, "Failed to enable PCI access from CPU\n");
+ return rc;
}
int goya_mmap(struct hl_fpriv *hpriv, struct vm_area_struct *vma)
@@ -2502,6 +3372,104 @@ int goya_cb_mmap(struct hl_device *hdev, struct vm_area_struct *vma,
return rc;
}
+void goya_ring_doorbell(struct hl_device *hdev, u32 hw_queue_id, u32 pi)
+{
+ u32 db_reg_offset, db_value;
+ bool invalid_queue = false;
+
+ switch (hw_queue_id) {
+ case GOYA_QUEUE_ID_DMA_0:
+ db_reg_offset = mmDMA_QM_0_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_DMA_1:
+ db_reg_offset = mmDMA_QM_1_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_DMA_2:
+ db_reg_offset = mmDMA_QM_2_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_DMA_3:
+ db_reg_offset = mmDMA_QM_3_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_DMA_4:
+ db_reg_offset = mmDMA_QM_4_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_CPU_PQ:
+ if (hdev->cpu_queues_enable)
+ db_reg_offset = mmCPU_IF_PF_PQ_PI;
+ else
+ invalid_queue = true;
+ break;
+
+ case GOYA_QUEUE_ID_MME:
+ db_reg_offset = mmMME_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC0:
+ db_reg_offset = mmTPC0_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC1:
+ db_reg_offset = mmTPC1_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC2:
+ db_reg_offset = mmTPC2_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC3:
+ db_reg_offset = mmTPC3_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC4:
+ db_reg_offset = mmTPC4_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC5:
+ db_reg_offset = mmTPC5_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC6:
+ db_reg_offset = mmTPC6_QM_PQ_PI;
+ break;
+
+ case GOYA_QUEUE_ID_TPC7:
+ db_reg_offset = mmTPC7_QM_PQ_PI;
+ break;
+
+ default:
+ invalid_queue = true;
+ }
+
+ if (invalid_queue) {
+ /* Should never get here */
+ dev_err(hdev->dev, "h/w queue %d is invalid. Can't set pi\n",
+ hw_queue_id);
+ return;
+ }
+
+ db_value = pi;
+
+ if (hdev->ifh)
+ return;
+
+ /* ring the doorbell */
+ WREG32(db_reg_offset, db_value);
+
+ if (hw_queue_id == GOYA_QUEUE_ID_CPU_PQ)
+ WREG32(mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR,
+ GOYA_ASYNC_EVENT_ID_PI_UPDATE);
+}
+
+void goya_flush_pq_write(struct hl_device *hdev, u64 *pq, u64 exp_val)
+{
+ /* Not needed in Goya */
+}
+
void *goya_dma_alloc_coherent(struct hl_device *hdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags)
{
@@ -2514,6 +3482,311 @@ void goya_dma_free_coherent(struct hl_device *hdev, size_t size, void *cpu_addr,
dma_free_coherent(&hdev->pdev->dev, size, cpu_addr, dma_handle);
}
+void *goya_get_int_queue_base(struct hl_device *hdev, u32 queue_id,
+ dma_addr_t *dma_handle, u16 *queue_len)
+{
+ void *base;
+ u32 offset;
+
+ *dma_handle = hdev->asic_prop.sram_base_address;
+
+ base = hdev->pcie_bar[SRAM_CFG_BAR_ID];
+
+ switch (queue_id) {
+ case GOYA_QUEUE_ID_MME:
+ offset = MME_QMAN_BASE_OFFSET;
+ *queue_len = MME_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC0:
+ offset = TPC0_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC1:
+ offset = TPC1_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC2:
+ offset = TPC2_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC3:
+ offset = TPC3_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC4:
+ offset = TPC4_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC5:
+ offset = TPC5_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC6:
+ offset = TPC6_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ case GOYA_QUEUE_ID_TPC7:
+ offset = TPC7_QMAN_BASE_OFFSET;
+ *queue_len = TPC_QMAN_LENGTH;
+ break;
+ default:
+ dev_err(hdev->dev, "Got invalid queue id %d\n", queue_id);
+ return NULL;
+ }
+
+ base += offset;
+ *dma_handle += offset;
+
+ return base;
+}
+
+int goya_send_cpu_message(struct hl_device *hdev, u32 *msg, u16 len,
+ u32 timeout, long *result)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ struct armcp_packet *pkt;
+ dma_addr_t pkt_dma_addr;
+ u32 tmp;
+ int rc = 0;
+
+ if (!(goya->hw_cap_initialized & HW_CAP_CPU_Q)) {
+ if (result)
+ *result = 0;
+ return 0;
+ }
+
+ if (len > CPU_CB_SIZE) {
+ dev_err(hdev->dev, "Invalid CPU message size of %d bytes\n",
+ len);
+ return -ENOMEM;
+ }
+
+ pkt = hdev->asic_funcs->cpu_accessible_dma_pool_alloc(hdev, len,
+ &pkt_dma_addr);
+ if (!pkt) {
+ dev_err(hdev->dev,
+ "Failed to allocate DMA memory for packet to CPU\n");
+ return -ENOMEM;
+ }
+
+ memcpy(pkt, msg, len);
+
+ mutex_lock(&hdev->send_cpu_message_lock);
+
+ if (hdev->disabled)
+ goto out;
+
+ rc = hl_hw_queue_send_cb_no_cmpl(hdev, GOYA_QUEUE_ID_CPU_PQ, len,
+ pkt_dma_addr);
+ if (rc) {
+ dev_err(hdev->dev, "Failed to send CB on CPU PQ (%d)\n", rc);
+ goto out;
+ }
+
+ rc = hl_poll_timeout_memory(hdev, (u64) &pkt->fence, timeout, &tmp);
+
+ hl_hw_queue_inc_ci_kernel(hdev, GOYA_QUEUE_ID_CPU_PQ);
+
+ if (rc == -ETIMEDOUT) {
+ dev_err(hdev->dev,
+ "Timeout while waiting for CPU packet fence\n");
+ goto out;
+ }
+
+ if (tmp == ARMCP_PACKET_FENCE_VAL) {
+ if (pkt->rc) {
+ dev_err(hdev->dev,
+ "failed to execute CPU packet, rc: %d\n",
+ pkt->rc);
+ rc = -EINVAL;
+ } else if (result) {
+ *result = pkt->result;
+ }
+ } else {
+ dev_err(hdev->dev, "CPU packet wrong fence value\n");
+ rc = -EINVAL;
+ }
+
+out:
+ mutex_unlock(&hdev->send_cpu_message_lock);
+
+ hdev->asic_funcs->cpu_accessible_dma_pool_free(hdev, len, pkt);
+
+ return rc;
+}
+
+int goya_test_queue(struct hl_device *hdev, u32 hw_queue_id)
+{
+ struct packet_msg_prot *fence_pkt;
+ dma_addr_t pkt_dma_addr;
+ u32 fence_val, tmp;
+ dma_addr_t fence_dma_addr;
+ u32 *fence_ptr;
+ int rc;
+
+ fence_val = GOYA_QMAN0_FENCE_VAL;
+
+ fence_ptr = hdev->asic_funcs->dma_pool_zalloc(hdev, 4, GFP_KERNEL,
+ &fence_dma_addr);
+ if (!fence_ptr) {
+ dev_err(hdev->dev,
+ "Failed to allocate memory for queue testing\n");
+ return -ENOMEM;
+ }
+
+ *fence_ptr = 0;
+
+ fence_pkt = hdev->asic_funcs->dma_pool_zalloc(hdev,
+ sizeof(struct packet_msg_prot),
+ GFP_KERNEL, &pkt_dma_addr);
+ if (!fence_pkt) {
+ dev_err(hdev->dev,
+ "Failed to allocate packet for queue testing\n");
+ rc = -ENOMEM;
+ goto free_fence_ptr;
+ }
+
+ fence_pkt->opcode = PACKET_MSG_PROT;
+ fence_pkt->value = fence_val;
+ fence_pkt->addr = fence_dma_addr +
+ hdev->asic_prop.host_phys_base_address;
+
+ rc = hl_hw_queue_send_cb_no_cmpl(hdev, hw_queue_id,
+ sizeof(struct packet_msg_prot),
+ pkt_dma_addr);
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to send fence packet\n");
+ goto free_pkt;
+ }
+
+ rc = hl_poll_timeout_memory(hdev, (u64) fence_ptr,
+ GOYA_TEST_QUEUE_WAIT_USEC, &tmp);
+
+ hl_hw_queue_inc_ci_kernel(hdev, hw_queue_id);
+
+ if ((!rc) && (tmp == fence_val)) {
+ dev_info(hdev->dev,
+ "queue test on H/W queue %d succeeded\n",
+ hw_queue_id);
+ } else {
+ dev_err(hdev->dev,
+ "H/W queue %d test failed (scratch(0x%08llX) == 0x%08X)\n",
+ hw_queue_id, fence_dma_addr, tmp);
+ rc = -EINVAL;
+ }
+
+free_pkt:
+ hdev->asic_funcs->dma_pool_free(hdev, (void *) fence_pkt,
+ pkt_dma_addr);
+free_fence_ptr:
+ hdev->asic_funcs->dma_pool_free(hdev, (void *) fence_ptr,
+ fence_dma_addr);
+ return rc;
+}
+
+int goya_test_cpu_queue(struct hl_device *hdev)
+{
+ struct armcp_packet test_pkt;
+ long result;
+ int rc;
+
+ /* cpu_queues_enable flag is always checked in send cpu message */
+
+ memset(&test_pkt, 0, sizeof(test_pkt));
+
+ test_pkt.opcode = ARMCP_PACKET_TEST;
+ test_pkt.value = ARMCP_PACKET_FENCE_VAL;
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &test_pkt,
+ sizeof(test_pkt), HL_DEVICE_TIMEOUT_USEC, &result);
+
+ if (!rc)
+ dev_info(hdev->dev, "queue test on CPU queue succeeded\n");
+ else
+ dev_err(hdev->dev, "CPU queue test failed (0x%08lX)\n", result);
+
+ return rc;
+}
+
+static int goya_test_queues(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+ int i, rc, ret_val = 0;
+
+ if (hdev->ifh)
+ return 0;
+
+ for (i = 0 ; i < NUMBER_OF_EXT_HW_QUEUES ; i++) {
+ rc = goya_test_queue(hdev, i);
+ if (rc)
+ ret_val = -EINVAL;
+ }
+
+ if (hdev->cpu_queues_enable) {
+ rc = goya->test_cpu_queue(hdev);
+ if (rc)
+ ret_val = -EINVAL;
+ }
+
+ return ret_val;
+}
+
+void *goya_dma_pool_zalloc(struct hl_device *hdev, size_t size, gfp_t mem_flags,
+ dma_addr_t *dma_handle)
+{
+ if (size > GOYA_DMA_POOL_BLK_SIZE)
+ return NULL;
+
+ return dma_pool_zalloc(hdev->dma_pool, mem_flags, dma_handle);
+}
+
+void goya_dma_pool_free(struct hl_device *hdev, void *vaddr,
+ dma_addr_t dma_addr)
+{
+ dma_pool_free(hdev->dma_pool, vaddr, dma_addr);
+}
+
+void *goya_cpu_accessible_dma_pool_alloc(struct hl_device *hdev, size_t size,
+ dma_addr_t *dma_handle)
+{
+ u64 kernel_addr;
+
+ /* roundup to CPU_PKT_SIZE */
+ size = (size + (CPU_PKT_SIZE - 1)) & CPU_PKT_MASK;
+
+ kernel_addr = gen_pool_alloc(hdev->cpu_accessible_dma_pool, size);
+
+ *dma_handle = hdev->cpu_accessible_dma_address +
+ (kernel_addr - (u64) hdev->cpu_accessible_dma_mem);
+
+ return (void *) kernel_addr;
+}
+
+void goya_cpu_accessible_dma_pool_free(struct hl_device *hdev, size_t size,
+ void *vaddr)
+{
+ /* roundup to CPU_PKT_SIZE */
+ size = (size + (CPU_PKT_SIZE - 1)) & CPU_PKT_MASK;
+
+ gen_pool_free(hdev->cpu_accessible_dma_pool, (u64) vaddr, size);
+}
+
+
+static void goya_hw_queues_lock(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+
+ spin_lock(&goya->hw_queues_lock);
+}
+
+static void goya_hw_queues_unlock(struct hl_device *hdev)
+{
+ struct goya_device *goya = hdev->asic_specific;
+
+ spin_unlock(&goya->hw_queues_lock);
+}
+
static const struct hl_asic_funcs goya_funcs = {
.early_init = goya_early_init,
.early_fini = goya_early_fini,
@@ -2525,8 +3798,19 @@ static const struct hl_asic_funcs goya_funcs = {
.resume = goya_resume,
.mmap = goya_mmap,
.cb_mmap = goya_cb_mmap,
+ .ring_doorbell = goya_ring_doorbell,
+ .flush_pq_write = goya_flush_pq_write,
.dma_alloc_coherent = goya_dma_alloc_coherent,
.dma_free_coherent = goya_dma_free_coherent,
+ .get_int_queue_base = goya_get_int_queue_base,
+ .test_queues = goya_test_queues,
+ .dma_pool_zalloc = goya_dma_pool_zalloc,
+ .dma_pool_free = goya_dma_pool_free,
+ .cpu_accessible_dma_pool_alloc = goya_cpu_accessible_dma_pool_alloc,
+ .cpu_accessible_dma_pool_free = goya_cpu_accessible_dma_pool_free,
+ .hw_queues_lock = goya_hw_queues_lock,
+ .hw_queues_unlock = goya_hw_queues_unlock,
+ .send_cpu_message = goya_send_cpu_message
};
/**
diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h
index 45a6d2ca2752..598a718d3df1 100644
--- a/drivers/misc/habanalabs/goya/goyaP.h
+++ b/drivers/misc/habanalabs/goya/goyaP.h
@@ -9,6 +9,7 @@
#define GOYAP_H_
#include "habanalabs.h"
+#include "include/goya/goya_packets.h"
#include "include/goya/goya_boot_if.h"
#include "include/goya/goya.h"
@@ -117,12 +118,17 @@ enum goya_fw_component {
};
struct goya_device {
+ int (*test_cpu_queue)(struct hl_device *hdev);
+
/* TODO: remove hw_queues_lock after moving to scheduler code */
spinlock_t hw_queues_lock;
u64 ddr_bar_cur_addr;
u32 hw_cap_initialized;
};
+int goya_test_cpu_queue(struct hl_device *hdev);
+int goya_send_cpu_message(struct hl_device *hdev, u32 *msg, u16 len,
+ u32 timeout, long *result);
void goya_init_security(struct hl_device *hdev);
#endif /* GOYAP_H_ */
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index adda281ec2af..8232e2259463 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -30,10 +30,36 @@
struct hl_device;
struct hl_fpriv;
+/**
+ * enum hl_queue_type - Supported QUEUE types.
+ * @QUEUE_TYPE_NA: queue is not available.
+ * @QUEUE_TYPE_EXT: external queue which is a DMA channel that may access the
+ * host.
+ * @QUEUE_TYPE_INT: internal queue that performs DMA inside the device's
+ * memories and/or operates the compute engines.
+ * @QUEUE_TYPE_CPU: S/W queue for communication with the device's CPU.
+ */
+enum hl_queue_type {
+ QUEUE_TYPE_NA,
+ QUEUE_TYPE_EXT,
+ QUEUE_TYPE_INT,
+ QUEUE_TYPE_CPU
+};
+/**
+ * struct hw_queue_properties - queue information.
+ * @type: queue type.
+ * @kmd_only: true if only KMD is allowed to send a job to this queue, false
+ * otherwise.
+ */
+struct hw_queue_properties {
+ enum hl_queue_type type;
+ u8 kmd_only;
+};
/**
* struct asic_fixed_properties - ASIC specific immutable properties.
+ * @hw_queues_props: H/W queues properties.
* @uboot_ver: F/W U-boot version.
* @preboot_ver: F/W Preboot version.
* @sram_base_address: SRAM physical start address.
@@ -64,6 +90,7 @@ struct hl_fpriv;
* @tpc_enabled_mask: which TPCs are enabled.
*/
struct asic_fixed_properties {
+ struct hw_queue_properties hw_queues_props[HL_MAX_QUEUES];
char uboot_ver[VERSION_MAX_LEN];
char preboot_ver[VERSION_MAX_LEN];
u64 sram_base_address;
@@ -145,7 +172,92 @@ struct hl_cb {
+/*
+ * QUEUES
+ */
+
+struct hl_cs_job;
+
+/*
+ * Currently, there are two limitations on the maximum length of a queue:
+ *
+ * 1. The memory footprint of the queue. The current allocated space for the
+ * queue is PAGE_SIZE. Because each entry in the queue is HL_BD_SIZE,
+ * the maximum length of the queue can be PAGE_SIZE / HL_BD_SIZE,
+ * which currently is 4096/16 = 256 entries.
+ *
+ * To increase that, we need either to decrease the size of the
+ * BD (difficult), or allocate more than a single page (easier).
+ *
+ * 2. Because the size of the JOB handle field in the BD CTL / completion queue
+ * is 10-bit, we can have up to 1024 open jobs per hardware queue.
+ * Therefore, each queue can hold up to 1024 entries.
+ *
+ * HL_QUEUE_LENGTH is in units of struct hl_bd.
+ * HL_QUEUE_LENGTH * sizeof(struct hl_bd) should be <= HL_PAGE_SIZE
+ */
+
+#define HL_PAGE_SIZE 4096 /* minimum page size */
+/* Must be power of 2 (HL_PAGE_SIZE / HL_BD_SIZE) */
#define HL_QUEUE_LENGTH 256
+#define HL_QUEUE_SIZE_IN_BYTES (HL_QUEUE_LENGTH * HL_BD_SIZE)
+
+/*
+ * HL_CQ_LENGTH is in units of struct hl_cq_entry.
+ * HL_CQ_LENGTH should be <= HL_PAGE_SIZE
+ */
+#define HL_CQ_LENGTH HL_QUEUE_LENGTH
+#define HL_CQ_SIZE_IN_BYTES (HL_CQ_LENGTH * HL_CQ_ENTRY_SIZE)
+
+
+
+/**
+ * struct hl_hw_queue - describes a H/W transport queue.
+ * @shadow_queue: pointer to a shadow queue that holds pointers to jobs.
+ * @queue_type: type of queue.
+ * @kernel_address: holds the queue's kernel virtual address.
+ * @bus_address: holds the queue's DMA address.
+ * @pi: holds the queue's pi value.
+ * @ci: holds the queue's ci value, AS CALCULATED BY THE DRIVER (not real ci).
+ * @hw_queue_id: the id of the H/W queue.
+ * @int_queue_len: length of internal queue (number of entries).
+ * @valid: is the queue valid (we have array of 32 queues, not all of them
+ * exists).
+ */
+struct hl_hw_queue {
+ struct hl_cs_job **shadow_queue;
+ enum hl_queue_type queue_type;
+ u64 kernel_address;
+ dma_addr_t bus_address;
+ u32 pi;
+ u32 ci;
+ u32 hw_queue_id;
+ u16 int_queue_len;
+ u8 valid;
+};
+
+/**
+ * struct hl_cq - describes a completion queue
+ * @hdev: pointer to the device structure
+ * @kernel_address: holds the queue's kernel virtual address
+ * @bus_address: holds the queue's DMA address
+ * @hw_queue_id: the id of the matching H/W queue
+ * @ci: ci inside the queue
+ * @pi: pi inside the queue
+ * @free_slots_cnt: counter of free slots in queue
+ */
+struct hl_cq {
+ struct hl_device *hdev;
+ u64 kernel_address;
+ dma_addr_t bus_address;
+ u32 hw_queue_id;
+ u32 ci;
+ u32 pi;
+ atomic_t free_slots_cnt;
+};
+
+
+
/*
@@ -180,8 +292,20 @@ enum hl_asic_type {
* @resume: handles IP specific H/W or SW changes for resume.
* @mmap: mmap function, does nothing.
* @cb_mmap: maps a CB.
+ * @ring_doorbell: increment PI on a given QMAN.
+ * @flush_pq_write: flush PQ entry write if necessary, WARN if flushing failed.
* @dma_alloc_coherent: DMA allocate coherent memory.
* @dma_free_coherent: free DMA allocation.
+ * @get_int_queue_base: get the internal queue base address.
+ * @test_queues: run simple test on all queues for sanity check.
+ * @dma_pool_zalloc: small DMA allocation of coherent memory from DMA pool.
+ * size of allocation is HL_DMA_POOL_BLK_SIZE.
+ * @dma_pool_free: free small DMA allocation from pool.
+ * @cpu_accessible_dma_pool_alloc: allocate CPU PQ packet from DMA pool.
+ * @cpu_accessible_dma_pool_free: free CPU PQ packet from DMA pool.
+ * @hw_queues_lock: acquire H/W queues lock.
+ * @hw_queues_unlock: release H/W queues lock.
+ * @send_cpu_message: send buffer to ArmCP.
*/
struct hl_asic_funcs {
int (*early_init)(struct hl_device *hdev);
@@ -195,10 +319,27 @@ struct hl_asic_funcs {
int (*mmap)(struct hl_fpriv *hpriv, struct vm_area_struct *vma);
int (*cb_mmap)(struct hl_device *hdev, struct vm_area_struct *vma,
u64 kaddress, phys_addr_t paddress, u32 size);
+ void (*ring_doorbell)(struct hl_device *hdev, u32 hw_queue_id, u32 pi);
+ void (*flush_pq_write)(struct hl_device *hdev, u64 *pq, u64 exp_val);
void* (*dma_alloc_coherent)(struct hl_device *hdev, size_t size,
dma_addr_t *dma_handle, gfp_t flag);
void (*dma_free_coherent)(struct hl_device *hdev, size_t size,
void *cpu_addr, dma_addr_t dma_handle);
+ void* (*get_int_queue_base)(struct hl_device *hdev, u32 queue_id,
+ dma_addr_t *dma_handle, u16 *queue_len);
+ int (*test_queues)(struct hl_device *hdev);
+ void* (*dma_pool_zalloc)(struct hl_device *hdev, size_t size,
+ gfp_t mem_flags, dma_addr_t *dma_handle);
+ void (*dma_pool_free)(struct hl_device *hdev, void *vaddr,
+ dma_addr_t dma_addr);
+ void* (*cpu_accessible_dma_pool_alloc)(struct hl_device *hdev,
+ size_t size, dma_addr_t *dma_handle);
+ void (*cpu_accessible_dma_pool_free)(struct hl_device *hdev,
+ size_t size, void *vaddr);
+ void (*hw_queues_lock)(struct hl_device *hdev);
+ void (*hw_queues_unlock)(struct hl_device *hdev);
+ int (*send_cpu_message)(struct hl_device *hdev, u32 *msg,
+ u16 len, u32 timeout, long *result);
};
@@ -240,6 +381,17 @@ struct hl_ctx_mgr {
+/**
+ * struct hl_cs_job - command submission job.
+ * @finish_work: workqueue object to run when job is completed.
+ * @id: the id of this job inside a CS.
+ */
+struct hl_cs_job {
+ struct work_struct finish_work;
+ u32 id;
+};
+
+
/*
* FILE PRIVATE STRUCTURE
*/
@@ -316,7 +468,11 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
* @dev: realted kernel basic device structure.
* @asic_name: ASIC specific nmae.
* @asic_type: ASIC specific type.
+ * @completion_queue: array of hl_cq.
+ * @cq_wq: work queue of completion queues for executing work in process context
+ * @eq_wq: work queue of event queue for executing work in process context.
* @kernel_ctx: KMD context structure.
+ * @kernel_queues: array of hl_hw_queue.
* @kernel_cb_mgr: command buffer manager for creating/destroying/handling CGs.
* @dma_pool: DMA pool for small allocations.
* @cpu_accessible_dma_mem: KMD <-> ArmCP shared memory CPU address.
@@ -326,6 +482,7 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
* @asid_bitmap: holds used/available ASIDs.
* @asid_mutex: protects asid_bitmap.
* @device_open: lock for sanity checks upon FD open.
+ * @send_cpu_message_lock: enforces only one message in KMD <-> ArmCP queue.
* @asic_prop: ASIC specific immutable properties.
* @asic_funcs: ASIC specific functions.
* @asic_specific: ASIC specific information to use only from ASIC files.
@@ -345,7 +502,10 @@ struct hl_device {
struct device *dev;
char asic_name[16];
enum hl_asic_type asic_type;
+ struct hl_cq *completion_queue;
+ struct workqueue_struct *cq_wq;
struct hl_ctx *kernel_ctx;
+ struct hl_hw_queue *kernel_queues;
struct hl_cb_mgr kernel_cb_mgr;
struct dma_pool *dma_pool;
void *cpu_accessible_dma_mem;
@@ -356,6 +516,7 @@ struct hl_device {
struct mutex asid_mutex;
/* TODO: change to rw_sem for multiple contexts (same as other IOCTL) */
struct mutex device_open;
+ struct mutex send_cpu_message_lock;
struct asic_fixed_properties asic_prop;
const struct hl_asic_funcs *asic_funcs;
void *asic_specific;
@@ -374,7 +535,9 @@ struct hl_device {
u8 cpu_enable;
u8 reset_pcilink;
u8 config_pll;
+ u8 cpu_queues_enable;
u8 fw_loading;
+ u8 ifh;
u8 pldm;
};
@@ -418,7 +581,18 @@ int hl_poll_timeout_memory(struct hl_device *hdev, u64 addr, u32 timeout_us,
u32 *val);
int hl_poll_timeout_device_memory(struct hl_device *hdev, void __iomem *addr,
u32 timeout_us, u32 *val);
-
+int hl_hw_queues_create(struct hl_device *hdev);
+void hl_hw_queues_destroy(struct hl_device *hdev);
+int hl_hw_queue_send_cb_no_cmpl(struct hl_device *hdev, u32 hw_queue_id,
+ u32 cb_size, u64 cb_ptr);
+u32 hl_hw_queue_add_ptr(u32 ptr, u16 val);
+void hl_hw_queue_inc_ci_kernel(struct hl_device *hdev, u32 hw_queue_id);
+
+#define hl_queue_inc_ptr(p) hl_hw_queue_add_ptr(p, 1)
+#define hl_pi_2_offset(pi) ((pi) & (HL_QUEUE_LENGTH - 1))
+
+int hl_cq_init(struct hl_device *hdev, struct hl_cq *q, u32 hw_queue_id);
+void hl_cq_fini(struct hl_device *hdev, struct hl_cq *q);
int hl_asid_init(struct hl_device *hdev);
void hl_asid_fini(struct hl_device *hdev);
unsigned long hl_asid_alloc(struct hl_device *hdev);
diff --git a/drivers/misc/habanalabs/habanalabs_drv.c b/drivers/misc/habanalabs/habanalabs_drv.c
index bd80683118d3..b64f58ad0f5d 100644
--- a/drivers/misc/habanalabs/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/habanalabs_drv.c
@@ -184,13 +184,19 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
hdev->cpu_enable = 1;
hdev->reset_pcilink = 0;
hdev->config_pll = 0;
+ hdev->cpu_queues_enable = 1;
hdev->fw_loading = 1;
+ hdev->ifh = 0;
hdev->pldm = 0;
/* If CPU is disabled, no point in loading FW */
if (!hdev->cpu_enable)
hdev->fw_loading = 0;
+ /* If we don't load FW, no need to initialize CPU queues */
+ if (!hdev->fw_loading)
+ hdev->cpu_queues_enable = 0;
+
hdev->disabled = true;
hdev->pdev = pdev; /* can be NULL in case of simulator device */
diff --git a/drivers/misc/habanalabs/hw_queue.c b/drivers/misc/habanalabs/hw_queue.c
new file mode 100644
index 000000000000..65102a5bc2ca
--- /dev/null
+++ b/drivers/misc/habanalabs/hw_queue.c
@@ -0,0 +1,404 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2018 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "habanalabs.h"
+
+#include <linux/dma-mapping.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+
+/**
+ * hl_queue_add_ptr - add to pi or ci and checks if it wraps around
+ *
+ * @ptr: the current pi/ci value
+ * @val: the amount to add
+ *
+ * Add val to ptr. It can go until twice the queue length.
+ */
+inline u32 hl_hw_queue_add_ptr(u32 ptr, u16 val)
+{
+ ptr += val;
+ ptr &= ((HL_QUEUE_LENGTH << 1) - 1);
+ return ptr;
+}
+
+static inline int queue_free_slots(struct hl_hw_queue *q, u32 queue_len)
+{
+ int delta = (q->pi - q->ci);
+
+ if (delta >= 0)
+ return (queue_len - delta);
+ else
+ return (abs(delta) - queue_len);
+}
+
+/**
+ * ext_queue_submit_bd - Submit a buffer descriptor to an external queue
+ *
+ * @hdev: pointer to habanalabs device structure
+ * @q: pointer to habanalabs queue structure
+ * @ctl: BD's control word
+ * @len: BD's length
+ * @ptr: BD's pointer
+ *
+ * This function assumes there is enough space on the queue to submit a new
+ * BD to it. It initializes the next BD and calls the device specific
+ * function to set the pi (and doorbell)
+ *
+ * This function must be called when the scheduler mutex is taken
+ *
+ */
+static void ext_queue_submit_bd(struct hl_device *hdev, struct hl_hw_queue *q,
+ u32 ctl, u32 len, u64 ptr)
+{
+ struct hl_bd *bd;
+
+ bd = (struct hl_bd *) q->kernel_address;
+ bd += hl_pi_2_offset(q->pi);
+ bd->ctl = ctl;
+ bd->len = len;
+ bd->ptr = ptr + hdev->asic_prop.host_phys_base_address;
+
+ q->pi = hl_queue_inc_ptr(q->pi);
+ hdev->asic_funcs->ring_doorbell(hdev, q->hw_queue_id, q->pi);
+}
+
+/**
+ * ext_queue_sanity_checks - perform some sanity checks on external queue
+ *
+ * @hdev : pointer to hl_device structure
+ * @q : pointer to hl_hw_queue structure
+ * @num_of_entries : how many entries to check for space
+ * @reserve_cq_entry : whether to reserve an entry in the cq
+ *
+ * H/W queues spinlock should be taken before calling this function
+ *
+ * Perform the following:
+ * - Make sure we have enough space in the h/w queue
+ * - Make sure we have enough space in the completion queue
+ * - Reserve space in the completion queue (needs to be reversed if there
+ * is a failure down the road before the actual submission of work). Only
+ * do this action if reserve_cq_entry is true
+ *
+ */
+static int ext_queue_sanity_checks(struct hl_device *hdev,
+ struct hl_hw_queue *q, int num_of_entries,
+ bool reserve_cq_entry)
+{
+ atomic_t *free_slots =
+ &hdev->completion_queue[q->hw_queue_id].free_slots_cnt;
+ int free_slots_cnt;
+
+ /* Check we have enough space in the queue */
+ free_slots_cnt = queue_free_slots(q, HL_QUEUE_LENGTH);
+
+ if (free_slots_cnt < num_of_entries) {
+ dev_dbg(hdev->dev, "Queue %d doesn't have room for %d CBs\n",
+ q->hw_queue_id, num_of_entries);
+ return -EAGAIN;
+ }
+
+ if (reserve_cq_entry) {
+ /*
+ * Check we have enough space in the completion queue
+ * Add -1 to counter (decrement) unless counter was already 0
+ * In that case, CQ is full so we can't submit a new CB because
+ * we won't get ack on its completion
+ * atomic_add_unless will return 0 if counter was already 0
+ */
+ if (atomic_add_negative(num_of_entries * -1, free_slots)) {
+ dev_dbg(hdev->dev, "No space for %d on CQ %d\n",
+ num_of_entries, q->hw_queue_id);
+ atomic_add(num_of_entries, free_slots);
+ return -EAGAIN;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * hl_hw_queue_send_cb_no_cmpl - send a single CB (not a JOB) without completion
+ *
+ * @hdev: pointer to hl_device structure
+ * @hw_queue_id: Queue's type
+ * @cb_size: size of CB
+ * @cb_ptr: pointer to CB location
+ *
+ * This function sends a single CB, that must NOT generate a completion entry
+ *
+ */
+int hl_hw_queue_send_cb_no_cmpl(struct hl_device *hdev, u32 hw_queue_id,
+ u32 cb_size, u64 cb_ptr)
+{
+ struct hl_hw_queue *q = &hdev->kernel_queues[hw_queue_id];
+ int rc;
+
+ /*
+ * The CPU queue is a synchronous queue with an effective depth of
+ * a single entry (although it is allocated with room for multiple
+ * entries). Therefore, there is a different lock, called
+ * send_cpu_message_lock, that serializes accesses to the CPU queue.
+ * As a result, we don't need to lock the access to the entire H/W
+ * queues module when submitting a JOB to the CPU queue
+ */
+ if (q->queue_type != QUEUE_TYPE_CPU)
+ hdev->asic_funcs->hw_queues_lock(hdev);
+
+ if (hdev->disabled) {
+ rc = -EPERM;
+ goto out;
+ }
+
+ rc = ext_queue_sanity_checks(hdev, q, 1, false);
+ if (rc)
+ goto out;
+
+ ext_queue_submit_bd(hdev, q, 0, cb_size, cb_ptr);
+
+out:
+ if (q->queue_type != QUEUE_TYPE_CPU)
+ hdev->asic_funcs->hw_queues_unlock(hdev);
+
+ return rc;
+}
+
+/**
+ * hl_hw_queue_inc_ci_kernel - increment ci for kernel's queue
+ *
+ * @hdev: pointer to hl_device structure
+ * @hw_queue_id: which queue to increment its ci
+ */
+void hl_hw_queue_inc_ci_kernel(struct hl_device *hdev, u32 hw_queue_id)
+{
+ struct hl_hw_queue *q = &hdev->kernel_queues[hw_queue_id];
+
+ q->ci = hl_queue_inc_ptr(q->ci);
+}
+
+static int ext_and_cpu_hw_queue_init(struct hl_device *hdev,
+ struct hl_hw_queue *q)
+{
+ void *p;
+ int rc;
+
+ p = hdev->asic_funcs->dma_alloc_coherent(hdev,
+ HL_QUEUE_SIZE_IN_BYTES,
+ &q->bus_address, GFP_KERNEL | __GFP_ZERO);
+ if (!p)
+ return -ENOMEM;
+
+ q->kernel_address = (u64) p;
+
+ q->shadow_queue = kmalloc_array(HL_QUEUE_LENGTH,
+ sizeof(*q->shadow_queue),
+ GFP_KERNEL);
+ if (!q->shadow_queue) {
+ dev_err(hdev->dev,
+ "Failed to allocate shadow queue for H/W queue %d\n",
+ q->hw_queue_id);
+ rc = -ENOMEM;
+ goto free_queue;
+ }
+
+ /* Make sure read/write pointers are initialized to start of queue */
+ q->ci = 0;
+ q->pi = 0;
+
+ return 0;
+
+free_queue:
+ hdev->asic_funcs->dma_free_coherent(hdev, HL_QUEUE_SIZE_IN_BYTES,
+ (void *) q->kernel_address, q->bus_address);
+
+ return rc;
+}
+
+static int int_hw_queue_init(struct hl_device *hdev, struct hl_hw_queue *q)
+{
+ void *p;
+
+ p = hdev->asic_funcs->get_int_queue_base(hdev, q->hw_queue_id,
+ &q->bus_address, &q->int_queue_len);
+ if (!p) {
+ dev_err(hdev->dev,
+ "Failed to get base address for internal queue %d\n",
+ q->hw_queue_id);
+ return -EFAULT;
+ }
+
+ q->kernel_address = (u64) p;
+ q->pi = 0;
+ q->ci = 0;
+
+ return 0;
+}
+
+static int cpu_hw_queue_init(struct hl_device *hdev, struct hl_hw_queue *q)
+{
+ return ext_and_cpu_hw_queue_init(hdev, q);
+}
+
+static int ext_hw_queue_init(struct hl_device *hdev, struct hl_hw_queue *q)
+{
+ return ext_and_cpu_hw_queue_init(hdev, q);
+}
+
+/**
+ * hw_queue_init - main initialization function for H/W queue object
+ *
+ * @hdev: pointer to hl_device device structure
+ * @q: pointer to hl_hw_queue queue structure
+ * @hw_queue_id: The id of the H/W queue
+ *
+ * Allocate dma-able memory for the queue and initialize fields
+ * Returns 0 on success
+ */
+static int hw_queue_init(struct hl_device *hdev, struct hl_hw_queue *q,
+ u32 hw_queue_id)
+{
+ int rc;
+
+ BUILD_BUG_ON(HL_QUEUE_SIZE_IN_BYTES > HL_PAGE_SIZE);
+
+ q->hw_queue_id = hw_queue_id;
+
+ switch (q->queue_type) {
+ case QUEUE_TYPE_EXT:
+ rc = ext_hw_queue_init(hdev, q);
+ break;
+
+ case QUEUE_TYPE_INT:
+ rc = int_hw_queue_init(hdev, q);
+ break;
+
+ case QUEUE_TYPE_CPU:
+ rc = cpu_hw_queue_init(hdev, q);
+ break;
+
+ case QUEUE_TYPE_NA:
+ q->valid = 0;
+ return 0;
+
+ default:
+ dev_crit(hdev->dev, "wrong queue type %d during init\n",
+ q->queue_type);
+ rc = -EINVAL;
+ break;
+ }
+
+ if (rc)
+ return rc;
+
+ q->valid = 1;
+
+ return 0;
+}
+
+/**
+ * hw_queue_fini - destroy queue
+ *
+ * @hdev: pointer to hl_device device structure
+ * @q: pointer to hl_hw_queue queue structure
+ *
+ * Free the queue memory
+ */
+static void hw_queue_fini(struct hl_device *hdev, struct hl_hw_queue *q)
+{
+ if (!q->valid)
+ return;
+
+ /*
+ * If we arrived here, there are no jobs waiting on this queue
+ * so we can safely remove it.
+ * This is because this function can only called when:
+ * 1. Either a context is deleted, which only can occur if all its
+ * jobs were finished
+ * 2. A context wasn't able to be created due to failure or timeout,
+ * which means there are no jobs on the queue yet
+ *
+ * The only exception are the queues of the kernel context, but
+ * if they are being destroyed, it means that the entire module is
+ * being removed. If the module is removed, it means there is no open
+ * user context. It also means that if a job was submitted by
+ * the kernel driver (e.g. context creation), the job itself was
+ * released by the kernel driver when a timeout occurred on its
+ * Completion. Thus, we don't need to release it again.
+ */
+
+ if (q->queue_type == QUEUE_TYPE_INT)
+ return;
+
+ kfree(q->shadow_queue);
+
+ hdev->asic_funcs->dma_free_coherent(hdev,
+ HL_QUEUE_SIZE_IN_BYTES,
+ (void *) q->kernel_address, q->bus_address);
+}
+
+int hl_hw_queues_create(struct hl_device *hdev)
+{
+ struct asic_fixed_properties *asic = &hdev->asic_prop;
+ struct hl_hw_queue *q;
+ int i, rc, q_ready_cnt;
+
+ hdev->kernel_queues = kcalloc(HL_MAX_QUEUES,
+ sizeof(*hdev->kernel_queues), GFP_KERNEL);
+
+ if (!hdev->kernel_queues) {
+ dev_err(hdev->dev, "Not enough memory for H/W queues\n");
+ return -ENOMEM;
+ }
+
+ /* Initialize the H/W queues */
+ for (i = 0, q_ready_cnt = 0, q = hdev->kernel_queues;
+ i < HL_MAX_QUEUES ; i++, q_ready_cnt++, q++) {
+
+ q->queue_type = asic->hw_queues_props[i].type;
+ rc = hw_queue_init(hdev, q, i);
+ if (rc) {
+ dev_err(hdev->dev,
+ "failed to initialize queue %d\n", i);
+ goto release_queues;
+ }
+ }
+
+ return 0;
+
+release_queues:
+ for (i = 0, q = hdev->kernel_queues ; i < q_ready_cnt ; i++, q++)
+ hw_queue_fini(hdev, q);
+
+ kfree(hdev->kernel_queues);
+
+ return rc;
+}
+
+void hl_hw_queues_destroy(struct hl_device *hdev)
+{
+ struct hl_hw_queue *q;
+ int i;
+
+ for (i = 0, q = hdev->kernel_queues ; i < HL_MAX_QUEUES ; i++, q++)
+ hw_queue_fini(hdev, q);
+
+ kfree(hdev->kernel_queues);
+}
+
+void hl_hw_queue_reset(struct hl_device *hdev, bool hard_reset)
+{
+ struct hl_hw_queue *q;
+ int i;
+
+ for (i = 0, q = hdev->kernel_queues ; i < HL_MAX_QUEUES ; i++, q++) {
+ if ((!q->valid) ||
+ ((!hard_reset) && (q->queue_type == QUEUE_TYPE_CPU)))
+ continue;
+ q->pi = q->ci = 0;
+ }
+}
diff --git a/drivers/misc/habanalabs/include/goya/goya_packets.h b/drivers/misc/habanalabs/include/goya/goya_packets.h
new file mode 100644
index 000000000000..669a3f37ccb7
--- /dev/null
+++ b/drivers/misc/habanalabs/include/goya/goya_packets.h
@@ -0,0 +1,234 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2017-2018 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ *
+ * Authors:
+ *
+ * Oded Gabbay <oded.gabbay@...il.com>
+ * Guy Eilat <geilat@...ana.ai>
+ *
+ */
+
+#ifndef GOYA_PACKETS_H
+#define GOYA_PACKETS_H
+
+#include <linux/types.h>
+
+#define PACKET_HEADER_PACKET_ID_SHIFT 56
+#define PACKET_HEADER_PACKET_ID_MASK 0x1F00000000000000ull
+
+enum packet_id {
+ PACKET_WREG_32 = 0x1,
+ PACKET_WREG_BULK = 0x2,
+ PACKET_MSG_LONG = 0x3,
+ PACKET_MSG_SHORT = 0x4,
+ PACKET_CP_DMA = 0x5,
+ PACKET_MSG_PROT = 0x7,
+ PACKET_FENCE = 0x8,
+ PACKET_LIN_DMA = 0x9,
+ PACKET_NOP = 0xA,
+ PACKET_STOP = 0xB,
+ MAX_PACKET_ID = (PACKET_HEADER_PACKET_ID_MASK >>
+ PACKET_HEADER_PACKET_ID_SHIFT) + 1
+};
+
+enum goya_dma_direction {
+ DMA_HOST_TO_DRAM,
+ DMA_HOST_TO_SRAM,
+ DMA_DRAM_TO_SRAM,
+ DMA_SRAM_TO_DRAM,
+ DMA_SRAM_TO_HOST,
+ DMA_DRAM_TO_HOST,
+ DMA_DRAM_TO_DRAM,
+ DMA_SRAM_TO_SRAM,
+ DMA_ENUM_MAX
+};
+
+struct packet_nop {
+ __u32 reserved;
+ union {
+ struct {
+ __u32:24;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+};
+
+struct packet_stop {
+ __u32 reserved;
+ union {
+ struct {
+ __u32:24;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1; /* must be 0 */
+ __u32 msg_barrier :1; /* must be 0 */
+ };
+ __u32 ctl;
+ };
+};
+
+struct packet_wreg32 {
+ __u32 value;
+ union {
+ struct {
+ __u32 reg_offset :16;
+ __u32:7;
+ __u32 local :1; /* 0: write to TCL regs,
+ * 1: write to CMDQ regs
+ */
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1; /* must be 1 */
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+};
+
+struct packet_wreg_bulk {
+ __u32 size64 :16;
+ __u32:16;
+ __u32 reg_offset :16;
+ __u32:8;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1; /* must be 1 */
+ __u32 msg_barrier :1;
+ __u64 values[0]; /* data starts here */
+};
+
+struct packet_msg_long {
+ __u32 value;
+ union {
+ struct {
+ __u32:16;
+ __u32 weakly_ordered :1;
+ __u32 no_snoop :1;
+ __u32:2;
+ __u32 op :2; /* 0: write <value>. 1: write timestamp. */
+ __u32:2;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+ __u64 addr;
+};
+
+struct packet_msg_short {
+ union {
+ struct {
+ __u32 sync_id :10;
+ __u32:5;
+ __u32 mode : 1;
+ __u32 sync_value :16;
+ } mon_arm_register;
+ struct {
+ __u32 sync_value :16;
+ __u32:15;
+ __u32 mode :1;
+ } so_upd;
+ __u32 value;
+ };
+ union {
+ struct {
+ __u32 msg_addr_offset :16;
+ __u32 weakly_ordered :1;
+ __u32 no_snoop :1;
+ __u32:2;
+ __u32 op :2;
+ __u32 base :2;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+};
+
+struct packet_msg_prot {
+ __u32 value;
+ union {
+ struct {
+ __u32:16;
+ __u32 weakly_ordered :1;
+ __u32 no_snoop :1;
+ __u32:2;
+ __u32 op :2; /* 0: write <value>. 1: write timestamp. */
+ __u32:2;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+ __u64 addr;
+};
+
+struct packet_fence {
+ __u32 dec_val :4;
+ __u32:12;
+ __u32 gate_val :8;
+ __u32:6;
+ __u32 id :2;
+ __u32:24;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+};
+
+struct packet_lin_dma {
+ __u32 tsize;
+ union {
+ struct {
+ __u32 weakly_ordered :1; /* H/W bug, must be 1 */
+ __u32 rdcomp :1;
+ __u32 wrcomp :1;
+ __u32 no_snoop :1;
+ __u32 src_disable :1;
+ __u32 dst_disable :1;
+ __u32 memset_mode :1;
+ __u32 tensor_dma :1; /* N/A, must be 0 */
+ __u32 cntrl :12;
+ __u32 dma_dir :3; /* S/W only, no effect on HW */
+ __u32:1;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1; /* must be 1 */
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+ __u64 src_addr;
+ __u64 dst_addr;
+};
+
+struct packet_cp_dma {
+ __u32 tsize;
+ union {
+ struct {
+ __u32 weakly_ordered :1;
+ __u32 no_snoop :1;
+ __u32:22;
+ __u32 opcode :5;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1; /* must be 1 */
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+ __u64 src_addr;
+};
+
+#endif /* GOYA_PACKETS_H */
diff --git a/drivers/misc/habanalabs/include/habanalabs_device_if.h b/drivers/misc/habanalabs/include/habanalabs_device_if.h
index 9dbb7077eabd..62df9981f68a 100644
--- a/drivers/misc/habanalabs/include/habanalabs_device_if.h
+++ b/drivers/misc/habanalabs/include/habanalabs_device_if.h
@@ -97,6 +97,278 @@ enum pq_init_status {
PQ_INIT_STATUS_READY_FOR_HOST
};
+/*
+ * ArmCP Primary Queue Packets
+ *
+ * During normal operation, KMD needs to send various messages to ArmCP,
+ * usually either to SET some value into a H/W periphery or to GET the current
+ * value of some H/W periphery. For example, SET the frequency of MME/TPC and
+ * GET the value of the thermal sensor.
+ *
+ * These messages can be initiated either by the User application or by KMD
+ * itself, e.g. power management code. In either case, the communication from
+ * KMD to ArmCP will *always* be in synchronous mode, meaning that KMD will
+ * send a single message and poll until the message was acknowledged and the
+ * results are ready (if results are needed).
+ *
+ * This means that only a single message can be sent at a time and KMD must
+ * wait for its result before sending the next message. Having said that,
+ * because these are control messages which are sent in a relatively low
+ * frequency, this limitation seems acceptable. It's important to note that
+ * in case of multiple devices, messages to different devices *can* be sent
+ * at the same time.
+ *
+ * The message, inputs/outputs (if relevant) and fence object will be located
+ * on the device DDR at an address that will be determined by KMD. During
+ * device initialization phase, KMD will pass to ArmCP that address. Most of
+ * the message types will contain inputs/outputs inside the message itself.
+ * The common part of each message will contain the opcode of the message (its
+ * type) and a field representing a fence object.
+ *
+ * When KMD wishes to send a message to ArmCP, it will write the message
+ * contents to the device DDR, clear the fence object and then write the
+ * value 484 to the mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR register to issue
+ * the 484 interrupt-id to the ARM core.
+ *
+ * Upon receiving the 484 interrupt-id, ArmCP will read the message from the
+ * DDR. In case the message is a SET operation, ArmCP will first perform the
+ * operation and then write to the fence object on the device DDR. In case the
+ * message is a GET operation, ArmCP will first fill the results section on the
+ * device DDR and then write to the fence object. If an error occurred, ArmCP
+ * will fill the rc field with the right error code.
+ *
+ * In the meantime, KMD will poll on the fence object. Once KMD sees that the
+ * fence object is signaled, it will read the results from the device DDR
+ * (if relevant) and resume the code execution in KMD.
+ *
+ * To use QMAN packets, the opcode must be the QMAN opcode, shifted by 8
+ * so the value being put by the KMD matches the value read by ArmCP
+ *
+ * Non-QMAN packets should be limited to values 1 through (2^8 - 1)
+ *
+ * Detailed description:
+ *
+ * ARMCP_PACKET_DISABLE_PCI_ACCESS -
+ * After receiving this packet the embedded CPU must NOT issue PCI
+ * transactions (read/write) towards the Host CPU. This also include
+ * sending MSI-X interrupts.
+ * This packet is usually sent before the device is moved to D3Hot state.
+ *
+ * ARMCP_PACKET_ENABLE_PCI_ACCESS -
+ * After receiving this packet the embedded CPU is allowed to issue PCI
+ * transactions towards the Host CPU, including sending MSI-X interrupts.
+ * This packet is usually send after the device is moved to D0 state.
+ *
+ * ARMCP_PACKET_TEMPERATURE_GET -
+ * Fetch the current temperature / Max / Max Hyst / Critical /
+ * Critical Hyst of a specified thermal sensor. The packet's
+ * arguments specify the desired sensor and the field to get.
+ *
+ * ARMCP_PACKET_VOLTAGE_GET -
+ * Fetch the voltage / Max / Min of a specified sensor. The packet's
+ * arguments specify the sensor and type.
+ *
+ * ARMCP_PACKET_CURRENT_GET -
+ * Fetch the current / Max / Min of a specified sensor. The packet's
+ * arguments specify the sensor and type.
+ *
+ * ARMCP_PACKET_FAN_SPEED_GET -
+ * Fetch the speed / Max / Min of a specified fan. The packet's
+ * arguments specify the sensor and type.
+ *
+ * ARMCP_PACKET_PWM_GET -
+ * Fetch the pwm value / mode of a specified pwm. The packet's
+ * arguments specify the sensor and type.
+ *
+ * ARMCP_PACKET_PWM_SET -
+ * Set the pwm value / mode of a specified pwm. The packet's
+ * arguments specify the sensor, type and value.
+ *
+ * ARMCP_PACKET_FREQUENCY_SET -
+ * Set the frequency of a specified PLL. The packet's arguments specify
+ * the PLL and the desired frequency. The actual frequency in the device
+ * might differ from the requested frequency.
+ *
+ * ARMCP_PACKET_FREQUENCY_GET -
+ * Fetch the frequency of a specified PLL. The packet's arguments specify
+ * the PLL.
+ *
+ * ARMCP_PACKET_LED_SET -
+ * Set the state of a specified led. The packet's arguments
+ * specify the led and the desired state.
+ *
+ * ARMCP_PACKET_I2C_WR -
+ * Write 32-bit value to I2C device. The packet's arguments specify the
+ * I2C bus, address and value.
+ *
+ * ARMCP_PACKET_I2C_RD -
+ * Read 32-bit value from I2C device. The packet's arguments specify the
+ * I2C bus and address.
+ *
+ * ARMCP_PACKET_INFO_GET -
+ * Fetch information from the device as specified in the packet's
+ * structure. KMD passes the max size it allows the ArmCP to write to
+ * the structure, to prevent data corruption in case of mismatched
+ * KMD/FW versions.
+ *
+ * ARMCP_PACKET_FLASH_PROGRAM_REMOVED - this packet was removed
+ *
+ * ARMCP_PACKET_UNMASK_RAZWI_IRQ -
+ * Unmask the given IRQ. The IRQ number is specified in the value field.
+ * The packet is sent after receiving an interrupt and printing its
+ * relevant information.
+ *
+ * ARMCP_PACKET_UNMASK_RAZWI_IRQ_ARRAY -
+ * Unmask the given IRQs. The IRQs numbers are specified in an array right
+ * after the armcp_packet structure, where its first element is the array
+ * length. The packet is sent after a soft reset was done in order to
+ * handle any interrupts that were sent during the reset process.
+ *
+ * ARMCP_PACKET_TEST -
+ * Test packet for ArmCP connectivity. The CPU will put the fence value
+ * in the result field.
+ *
+ * ARMCP_PACKET_FREQUENCY_CURR_GET -
+ * Fetch the current frequency of a specified PLL. The packet's arguments
+ * specify the PLL.
+ *
+ * ARMCP_PACKET_MAX_POWER_GET -
+ * Fetch the maximal power of the device.
+ *
+ * ARMCP_PACKET_MAX_POWER_SET -
+ * Set the maximal power of the device. The packet's arguments specify
+ * the power.
+ *
+ * ARMCP_PACKET_EEPROM_DATA_GET -
+ * Get EEPROM data from the ArmCP kernel. The buffer is specified in the
+ * addr field. The CPU will put the returned data size in the result
+ * field. In addition, KMD passes the max size it allows the ArmCP to
+ * write to the structure, to prevent data corruption in case of
+ * mismatched KMD/FW versions.
+ *
+ */
+
+enum armcp_packet_id {
+ ARMCP_PACKET_DISABLE_PCI_ACCESS = 1, /* internal */
+ ARMCP_PACKET_ENABLE_PCI_ACCESS, /* internal */
+ ARMCP_PACKET_TEMPERATURE_GET, /* sysfs */
+ ARMCP_PACKET_VOLTAGE_GET, /* sysfs */
+ ARMCP_PACKET_CURRENT_GET, /* sysfs */
+ ARMCP_PACKET_FAN_SPEED_GET, /* sysfs */
+ ARMCP_PACKET_PWM_GET, /* sysfs */
+ ARMCP_PACKET_PWM_SET, /* sysfs */
+ ARMCP_PACKET_FREQUENCY_SET, /* sysfs */
+ ARMCP_PACKET_FREQUENCY_GET, /* sysfs */
+ ARMCP_PACKET_LED_SET, /* debugfs */
+ ARMCP_PACKET_I2C_WR, /* debugfs */
+ ARMCP_PACKET_I2C_RD, /* debugfs */
+ ARMCP_PACKET_INFO_GET, /* IOCTL */
+ ARMCP_PACKET_FLASH_PROGRAM_REMOVED,
+ ARMCP_PACKET_UNMASK_RAZWI_IRQ, /* internal */
+ ARMCP_PACKET_UNMASK_RAZWI_IRQ_ARRAY, /* internal */
+ ARMCP_PACKET_TEST, /* internal */
+ ARMCP_PACKET_FREQUENCY_CURR_GET, /* sysfs */
+ ARMCP_PACKET_MAX_POWER_GET, /* sysfs */
+ ARMCP_PACKET_MAX_POWER_SET, /* sysfs */
+ ARMCP_PACKET_EEPROM_DATA_GET, /* sysfs */
+};
+
+#define ARMCP_PACKET_FENCE_VAL 0xFE8CE7A5
+
+struct armcp_packet {
+ union {
+ __u64 value; /* For SET packets */
+ __u64 result; /* For GET packets */
+ __u64 addr; /* For PQ */
+ };
+
+ union {
+ struct {
+ __u32:12;
+ __u32 rc :4;
+ __u32 opcode :13;
+ __u32 eng_barrier :1;
+ __u32 reg_barrier :1;
+ __u32 msg_barrier :1;
+ };
+ __u32 ctl;
+ };
+
+ __u32 fence; /* Signal to KMD that message is completed */
+
+ union {
+ struct {/* For temperature/current/voltage/fan/pwm get/set */
+ __u16 sensor_index;
+ __u16 type;
+ };
+
+ struct { /* For I2C read/write */
+ __u8 i2c_bus;
+ __u8 i2c_addr;
+ __u8 i2c_reg;
+ __u8 pad; /* unused */
+ };
+
+ /* For frequency get/set */
+ __u32 pll_index;
+
+ /* For led set */
+ __u32 led_index;
+
+ /* For get Armcp info/EEPROM data */
+ __u32 data_max_size;
+ };
+};
+
+struct armcp_unmask_irq_arr_packet {
+ struct armcp_packet armcp_pkt;
+ __u32 length;
+ __u32 irqs[0];
+};
+
+enum armcp_packet_rc {
+ armcp_packet_success,
+ armcp_packet_invalid,
+ armcp_packet_fault
+};
+
+enum armcp_temp_type {
+ armcp_temp_input,
+ armcp_temp_max = 6,
+ armcp_temp_max_hyst,
+ armcp_temp_crit,
+ armcp_temp_crit_hyst
+};
+
+enum armcp_in_attributes {
+ armcp_in_input,
+ armcp_in_min,
+ armcp_in_max
+};
+
+enum armcp_curr_attributes {
+ armcp_curr_input,
+ armcp_curr_min,
+ armcp_curr_max
+};
+
+enum armcp_fan_attributes {
+ armcp_fan_input,
+ armcp_fan_min = 2,
+ armcp_fan_max
+};
+
+enum armcp_pwm_attributes {
+ armcp_pwm_input,
+ armcp_pwm_enable
+};
+
+/* Event Queue Packets */
+
+struct eq_generic_event {
+ __u64 data[7];
+};
+
/*
* ArmCP info
*/
diff --git a/drivers/misc/habanalabs/irq.c b/drivers/misc/habanalabs/irq.c
new file mode 100644
index 000000000000..97b0de7ea5c2
--- /dev/null
+++ b/drivers/misc/habanalabs/irq.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2018 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "habanalabs.h"
+
+#include <linux/dma-mapping.h>
+
+
+/**
+ * hl_cq_inc_ptr - increment ci or pi of cq
+ *
+ * @ptr: the current ci or pi value of the completion queue
+ *
+ * Increment ptr by 1. If it reaches the number of completion queue
+ * entries, set it to 0
+ */
+inline u32 hl_cq_inc_ptr(u32 ptr)
+{
+ ptr++;
+ if (unlikely(ptr == HL_CQ_LENGTH))
+ ptr = 0;
+ return ptr;
+}
+
+/**
+ * hl_irq_handler_cq - irq handler for completion queue
+ *
+ * @irq: irq number
+ * @arg: pointer to completion queue structure
+ *
+ */
+irqreturn_t hl_irq_handler_cq(int irq, void *arg)
+{
+ struct hl_cq *cq = arg;
+ struct hl_device *hdev = cq->hdev;
+ struct hl_hw_queue *queue;
+ struct hl_cs_job *job;
+ bool shadow_index_valid;
+ u16 shadow_index;
+ u32 *cq_entry;
+ u32 *cq_base;
+
+ if (hdev->disabled) {
+ dev_dbg(hdev->dev,
+ "Device disabled but received IRQ %d for CQ %d\n",
+ irq, cq->hw_queue_id);
+ return IRQ_HANDLED;
+ }
+
+ cq_base = (u32 *) cq->kernel_address;
+
+ while (1) {
+ bool entry_ready = ((cq_base[cq->ci] & CQ_ENTRY_READY_MASK)
+ >> CQ_ENTRY_READY_SHIFT);
+
+ if (!entry_ready)
+ break;
+
+ cq_entry = (u32 *) &cq_base[cq->ci];
+
+ /*
+ * Make sure we read CQ entry contents after we've
+ * checked the ownership bit.
+ */
+ dma_rmb();
+
+ shadow_index_valid =
+ ((*cq_entry & CQ_ENTRY_SHADOW_INDEX_VALID_MASK)
+ >> CQ_ENTRY_SHADOW_INDEX_VALID_SHIFT);
+
+ shadow_index = (u16)
+ ((*cq_entry & CQ_ENTRY_SHADOW_INDEX_MASK)
+ >> CQ_ENTRY_SHADOW_INDEX_SHIFT);
+
+ queue = &hdev->kernel_queues[cq->hw_queue_id];
+
+ if ((shadow_index_valid) && (!hdev->disabled)) {
+ job = queue->shadow_queue[hl_pi_2_offset(shadow_index)];
+ queue_work(hdev->cq_wq, &job->finish_work);
+ }
+
+ /*
+ * Update ci of the context's queue. There is no
+ * need to protect it with spinlock because this update is
+ * done only inside IRQ and there is a different IRQ per
+ * queue
+ */
+ queue->ci = hl_queue_inc_ptr(queue->ci);
+
+ /* Clear CQ entry ready bit */
+ cq_base[cq->ci] &= ~CQ_ENTRY_READY_MASK;
+
+ cq->ci = hl_cq_inc_ptr(cq->ci);
+
+ /* Increment free slots */
+ atomic_inc(&cq->free_slots_cnt);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * hl_cq_init - main initialization function for an cq object
+ *
+ * @hdev: pointer to device structure
+ * @q: pointer to cq structure
+ * @hw_queue_id: The H/W queue ID this completion queue belongs to
+ *
+ * Allocate dma-able memory for the completion queue and initialize fields
+ * Returns 0 on success
+ */
+int hl_cq_init(struct hl_device *hdev, struct hl_cq *q, u32 hw_queue_id)
+{
+ void *p;
+
+ BUILD_BUG_ON(HL_CQ_SIZE_IN_BYTES > HL_PAGE_SIZE);
+
+ p = hdev->asic_funcs->dma_alloc_coherent(hdev, HL_CQ_SIZE_IN_BYTES,
+ &q->bus_address, GFP_KERNEL | __GFP_ZERO);
+ if (!p)
+ return -ENOMEM;
+
+ q->hdev = hdev;
+ q->kernel_address = (u64) p;
+ q->hw_queue_id = hw_queue_id;
+ q->ci = 0;
+ q->pi = 0;
+
+ atomic_set(&q->free_slots_cnt, HL_CQ_LENGTH);
+
+ return 0;
+}
+
+/**
+ * hl_cq_fini - destroy completion queue
+ *
+ * @hdev: pointer to device structure
+ * @q: pointer to cq structure
+ *
+ * Free the completion queue memory
+ */
+void hl_cq_fini(struct hl_device *hdev, struct hl_cq *q)
+{
+ hdev->asic_funcs->dma_free_coherent(hdev, HL_CQ_SIZE_IN_BYTES,
+ (void *) q->kernel_address, q->bus_address);
+}
--
2.17.1
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