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Subject[PATCH 04/15] habanalabs: Move device CPU code into common file
Date
From: Tomer Tayar <ttayar@habana.ai>

This patch moves the code that is responsible of the communication
vs. the F/W to a dedicated file. This will allow us to share the code
between different ASICs.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
drivers/misc/habanalabs/Makefile | 2 +-
drivers/misc/habanalabs/firmware_if.c | 324 +++++++++++++++++++
drivers/misc/habanalabs/goya/goya.c | 360 ++++-----------------
drivers/misc/habanalabs/goya/goyaP.h | 11 -
drivers/misc/habanalabs/habanalabs.h | 17 +
drivers/misc/habanalabs/include/armcp_if.h | 8 +
6 files changed, 407 insertions(+), 315 deletions(-)
create mode 100644 drivers/misc/habanalabs/firmware_if.c

diff --git a/drivers/misc/habanalabs/Makefile b/drivers/misc/habanalabs/Makefile
index c6592db59b25..598740d235f8 100644
--- a/drivers/misc/habanalabs/Makefile
+++ b/drivers/misc/habanalabs/Makefile
@@ -6,7 +6,7 @@ obj-m := habanalabs.o

habanalabs-y := habanalabs_drv.o device.o context.o asid.o habanalabs_ioctl.o \
command_buffer.o hw_queue.o irq.o sysfs.o hwmon.o memory.o \
- command_submission.o mmu.o
+ command_submission.o mmu.o firmware_if.o

habanalabs-$(CONFIG_DEBUG_FS) += debugfs.o

diff --git a/drivers/misc/habanalabs/firmware_if.c b/drivers/misc/habanalabs/firmware_if.c
new file mode 100644
index 000000000000..9bf5203e8922
--- /dev/null
+++ b/drivers/misc/habanalabs/firmware_if.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2019 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "habanalabs.h"
+
+#include <linux/firmware.h>
+#include <linux/genalloc.h>
+
+/**
+ * hl_fw_push_fw_to_device() - Push FW code to device.
+ * @hdev: pointer to hl_device structure.
+ *
+ * Copy fw code from firmware file to device memory.
+ *
+ * Return: 0 on success, non-zero for failure.
+ */
+int hl_fw_push_fw_to_device(struct hl_device *hdev, const char *fw_name,
+ void __iomem *dst)
+{
+ const struct firmware *fw;
+ const u64 *fw_data;
+ size_t fw_size, i;
+ int rc;
+
+ rc = request_firmware(&fw, fw_name, hdev->dev);
+ if (rc) {
+ dev_err(hdev->dev, "Failed to request %s\n", fw_name);
+ goto out;
+ }
+
+ fw_size = fw->size;
+ if ((fw_size % 4) != 0) {
+ dev_err(hdev->dev, "illegal %s firmware size %zu\n",
+ fw_name, fw_size);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ dev_dbg(hdev->dev, "%s firmware size == %zu\n", fw_name, fw_size);
+
+ fw_data = (const u64 *) fw->data;
+
+ if ((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,
+ "copied so far %zu out of %zu for %s firmware",
+ i, fw_size, fw_name);
+ usleep_range(20, 100);
+ }
+
+ writeq(*fw_data, dst);
+ }
+
+ if ((fw->size % 8) != 0)
+ writel(*(const u32 *) fw_data, dst);
+
+out:
+ release_firmware(fw);
+ return rc;
+}
+
+int hl_fw_send_pci_access_msg(struct hl_device *hdev, u32 opcode)
+{
+ struct armcp_packet pkt = {};
+
+ pkt.ctl = cpu_to_le32(opcode << ARMCP_PKT_CTL_OPCODE_SHIFT);
+
+ return hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt,
+ sizeof(pkt), HL_DEVICE_TIMEOUT_USEC, NULL);
+}
+
+int hl_fw_send_cpu_message(struct hl_device *hdev, u32 hw_queue_id, u32 *msg,
+ u16 len, u32 timeout, long *result)
+{
+ struct armcp_packet *pkt;
+ dma_addr_t pkt_dma_addr;
+ u32 tmp;
+ int rc = 0;
+
+ if (len > HL_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;
+
+ if (hdev->device_cpu_disabled) {
+ rc = -EIO;
+ goto out;
+ }
+
+ rc = hl_hw_queue_send_cb_no_cmpl(hdev, hw_queue_id, 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) (uintptr_t) &pkt->fence,
+ timeout, &tmp);
+
+ hl_hw_queue_inc_ci_kernel(hdev, hw_queue_id);
+
+ if (rc == -ETIMEDOUT) {
+ dev_err(hdev->dev, "Timeout while waiting for device CPU\n");
+ hdev->device_cpu_disabled = true;
+ goto out;
+ }
+
+ if (tmp == ARMCP_PACKET_FENCE_VAL) {
+ u32 ctl = le32_to_cpu(pkt->ctl);
+
+ rc = (ctl & ARMCP_PKT_CTL_RC_MASK) >> ARMCP_PKT_CTL_RC_SHIFT;
+ if (rc) {
+ dev_err(hdev->dev,
+ "F/W ERROR %d for CPU packet %d\n",
+ rc, (ctl & ARMCP_PKT_CTL_OPCODE_MASK)
+ >> ARMCP_PKT_CTL_OPCODE_SHIFT);
+ rc = -EINVAL;
+ } else if (result) {
+ *result = (long) le64_to_cpu(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 hl_fw_test_cpu_queue(struct hl_device *hdev)
+{
+ struct armcp_packet test_pkt = {};
+ long result;
+ int rc;
+
+ test_pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEST <<
+ ARMCP_PKT_CTL_OPCODE_SHIFT);
+ test_pkt.value = cpu_to_le64(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) {
+ if (result == ARMCP_PACKET_FENCE_VAL)
+ dev_info(hdev->dev,
+ "queue test on CPU queue succeeded\n");
+ else
+ dev_err(hdev->dev,
+ "CPU queue test failed (0x%08lX)\n", result);
+ } else {
+ dev_err(hdev->dev, "CPU queue test failed, error %d\n", rc);
+ }
+
+ return rc;
+}
+
+void *hl_fw_cpu_accessible_dma_pool_alloc(struct hl_device *hdev, size_t size,
+ dma_addr_t *dma_handle)
+{
+ u64 kernel_addr;
+
+ /* roundup to HL_CPU_PKT_SIZE */
+ size = (size + (HL_CPU_PKT_SIZE - 1)) & HL_CPU_PKT_MASK;
+
+ kernel_addr = gen_pool_alloc(hdev->cpu_accessible_dma_pool, size);
+
+ *dma_handle = hdev->cpu_accessible_dma_address +
+ (kernel_addr - (u64) (uintptr_t) hdev->cpu_accessible_dma_mem);
+
+ return (void *) (uintptr_t) kernel_addr;
+}
+
+void hl_fw_cpu_accessible_dma_pool_free(struct hl_device *hdev, size_t size,
+ void *vaddr)
+{
+ /* roundup to HL_CPU_PKT_SIZE */
+ size = (size + (HL_CPU_PKT_SIZE - 1)) & HL_CPU_PKT_MASK;
+
+ gen_pool_free(hdev->cpu_accessible_dma_pool, (u64) (uintptr_t) vaddr,
+ size);
+}
+
+int hl_fw_send_heartbeat(struct hl_device *hdev)
+{
+ struct armcp_packet hb_pkt = {};
+ long result;
+ int rc;
+
+ hb_pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEST <<
+ ARMCP_PKT_CTL_OPCODE_SHIFT);
+ hb_pkt.value = cpu_to_le64(ARMCP_PACKET_FENCE_VAL);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &hb_pkt,
+ sizeof(hb_pkt), HL_DEVICE_TIMEOUT_USEC, &result);
+
+ if ((rc) || (result != ARMCP_PACKET_FENCE_VAL))
+ rc = -EIO;
+
+ return rc;
+}
+
+int hl_fw_armcp_info_get(struct hl_device *hdev)
+{
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
+ struct armcp_packet pkt = {};
+ void *armcp_info_cpu_addr;
+ dma_addr_t armcp_info_dma_addr;
+ long result;
+ int rc;
+
+ armcp_info_cpu_addr =
+ hdev->asic_funcs->cpu_accessible_dma_pool_alloc(hdev,
+ sizeof(struct armcp_info),
+ &armcp_info_dma_addr);
+ if (!armcp_info_cpu_addr) {
+ dev_err(hdev->dev,
+ "Failed to allocate DMA memory for ArmCP info packet\n");
+ return -ENOMEM;
+ }
+
+ memset(armcp_info_cpu_addr, 0, sizeof(struct armcp_info));
+
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_INFO_GET <<
+ ARMCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.addr = cpu_to_le64(armcp_info_dma_addr +
+ prop->host_phys_base_address);
+ pkt.data_max_size = cpu_to_le32(sizeof(struct armcp_info));
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ HL_ARMCP_INFO_TIMEOUT_USEC, &result);
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to send armcp info pkt, error %d\n", rc);
+ goto out;
+ }
+
+ memcpy(&prop->armcp_info, armcp_info_cpu_addr,
+ sizeof(prop->armcp_info));
+
+ rc = hl_build_hwmon_channel_info(hdev, prop->armcp_info.sensors);
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to build hwmon channel info, error %d\n", rc);
+ rc = -EFAULT;
+ goto out;
+ }
+
+out:
+ hdev->asic_funcs->cpu_accessible_dma_pool_free(hdev,
+ sizeof(struct armcp_info), armcp_info_cpu_addr);
+
+ return rc;
+}
+
+int hl_fw_get_eeprom_data(struct hl_device *hdev, void *data, size_t max_size)
+{
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
+ struct armcp_packet pkt = {};
+ void *eeprom_info_cpu_addr;
+ dma_addr_t eeprom_info_dma_addr;
+ long result;
+ int rc;
+
+ eeprom_info_cpu_addr =
+ hdev->asic_funcs->cpu_accessible_dma_pool_alloc(hdev,
+ max_size, &eeprom_info_dma_addr);
+ if (!eeprom_info_cpu_addr) {
+ dev_err(hdev->dev,
+ "Failed to allocate DMA memory for EEPROM info packet\n");
+ return -ENOMEM;
+ }
+
+ memset(eeprom_info_cpu_addr, 0, max_size);
+
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_EEPROM_DATA_GET <<
+ ARMCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.addr = cpu_to_le64(eeprom_info_dma_addr +
+ prop->host_phys_base_address);
+ pkt.data_max_size = cpu_to_le32(max_size);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ HL_ARMCP_EEPROM_TIMEOUT_USEC, &result);
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to send armcp EEPROM pkt, error %d\n", rc);
+ goto out;
+ }
+
+ /* result contains the actual size */
+ memcpy(data, eeprom_info_cpu_addr, min((size_t)result, max_size));
+
+out:
+ hdev->asic_funcs->cpu_accessible_dma_pool_free(hdev, max_size,
+ eeprom_info_cpu_addr);
+
+ return rc;
+}
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 3dfac5393269..a578d01a56a6 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -12,7 +12,6 @@

#include <linux/pci.h>
#include <linux/genalloc.h>
-#include <linux/firmware.h>
#include <linux/hwmon.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/io-64-nonatomic-hi-lo.h>
@@ -373,18 +372,6 @@ 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.ctl = cpu_to_le32(opcode << ARMCP_PKT_CTL_OPCODE_SHIFT);
-
- 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
*
@@ -802,7 +789,7 @@ static int goya_late_init(struct hl_device *hdev)
*/
WREG32(mmMMU_LOG2_DDR_SIZE, ilog2(prop->dram_size));

- rc = goya_send_pci_access_msg(hdev, ARMCP_PACKET_ENABLE_PCI_ACCESS);
+ rc = hl_fw_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;
@@ -828,7 +815,7 @@ static int goya_late_init(struct hl_device *hdev)
return 0;

disable_pci_access:
- goya_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
+ hl_fw_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);

return rc;
}
@@ -900,19 +887,16 @@ static int goya_sw_init(struct hl_device *hdev)

hdev->cpu_accessible_dma_mem =
hdev->asic_funcs->dma_alloc_coherent(hdev,
- CPU_ACCESSIBLE_MEM_SIZE,
+ HL_CPU_ACCESSIBLE_MEM_SIZE,
&hdev->cpu_accessible_dma_address,
GFP_KERNEL | __GFP_ZERO);

if (!hdev->cpu_accessible_dma_mem) {
- dev_err(hdev->dev,
- "failed to allocate %d of dma memory for CPU accessible memory space\n",
- CPU_ACCESSIBLE_MEM_SIZE);
rc = -ENOMEM;
goto free_dma_pool;
}

- hdev->cpu_accessible_dma_pool = gen_pool_create(CPU_PKT_SHIFT, -1);
+ hdev->cpu_accessible_dma_pool = gen_pool_create(HL_CPU_PKT_SHIFT, -1);
if (!hdev->cpu_accessible_dma_pool) {
dev_err(hdev->dev,
"Failed to create CPU accessible DMA pool\n");
@@ -922,7 +906,7 @@ static int goya_sw_init(struct hl_device *hdev)

rc = gen_pool_add(hdev->cpu_accessible_dma_pool,
(uintptr_t) hdev->cpu_accessible_dma_mem,
- CPU_ACCESSIBLE_MEM_SIZE, -1);
+ HL_CPU_ACCESSIBLE_MEM_SIZE, -1);
if (rc) {
dev_err(hdev->dev,
"Failed to add memory to CPU accessible DMA pool\n");
@@ -937,7 +921,7 @@ static int goya_sw_init(struct hl_device *hdev)
free_cpu_pq_pool:
gen_pool_destroy(hdev->cpu_accessible_dma_pool);
free_cpu_pq_dma_mem:
- hdev->asic_funcs->dma_free_coherent(hdev, CPU_ACCESSIBLE_MEM_SIZE,
+ hdev->asic_funcs->dma_free_coherent(hdev, HL_CPU_ACCESSIBLE_MEM_SIZE,
hdev->cpu_accessible_dma_mem,
hdev->cpu_accessible_dma_address);
free_dma_pool:
@@ -960,7 +944,7 @@ static int goya_sw_fini(struct hl_device *hdev)

gen_pool_destroy(hdev->cpu_accessible_dma_pool);

- hdev->asic_funcs->dma_free_coherent(hdev, CPU_ACCESSIBLE_MEM_SIZE,
+ hdev->asic_funcs->dma_free_coherent(hdev, HL_CPU_ACCESSIBLE_MEM_SIZE,
hdev->cpu_accessible_dma_mem,
hdev->cpu_accessible_dma_address);

@@ -1240,7 +1224,7 @@ static int goya_init_cpu_queues(struct hl_device *hdev)

WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_5, HL_QUEUE_SIZE_IN_BYTES);
WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_4, HL_EQ_SIZE_IN_BYTES);
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_10, CPU_ACCESSIBLE_MEM_SIZE);
+ WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_10, HL_CPU_ACCESSIBLE_MEM_SIZE);

/* Used for EQ CI */
WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_6, 0);
@@ -2328,67 +2312,45 @@ static void goya_halt_engines(struct hl_device *hdev, bool hard_reset)
}

/*
- * goya_push_fw_to_device - Push FW code to device
- *
- * @hdev: pointer to hl_device structure
+ * goya_push_uboot_to_device() - Push u-boot FW code to device.
+ * @hdev: Pointer to hl_device structure.
*
- * Copy fw code from firmware file to device memory.
- * Returns 0 on success
+ * Copy u-boot fw code from firmware file to SRAM BAR.
*
+ * Return: 0 on success, non-zero for failure.
*/
-static int goya_push_fw_to_device(struct hl_device *hdev, const char *fw_name,
- void __iomem *dst)
+static int goya_push_uboot_to_device(struct hl_device *hdev)
{
- const struct firmware *fw;
- const u64 *fw_data;
- size_t fw_size, i;
- int rc;
-
- rc = request_firmware(&fw, fw_name, hdev->dev);
-
- if (rc) {
- dev_err(hdev->dev, "Failed to request %s\n", fw_name);
- goto out;
- }
-
- fw_size = fw->size;
- if ((fw_size % 4) != 0) {
- dev_err(hdev->dev, "illegal %s firmware size %zu\n",
- fw_name, fw_size);
- rc = -EINVAL;
- goto out;
- }
-
- dev_dbg(hdev->dev, "%s firmware size == %zu\n", fw_name, fw_size);
-
- fw_data = (const u64 *) fw->data;
+ char fw_name[200];
+ void __iomem *dst;

- if ((fw->size % 8) != 0)
- fw_size -= 8;
+ snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-u-boot.bin");
+ dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + UBOOT_FW_OFFSET;

- for (i = 0 ; i < fw_size ; i += 8, fw_data++, dst += 8) {
- if (!(i & (0x80000 - 1))) {
- dev_dbg(hdev->dev,
- "copied so far %zu out of %zu for %s firmware",
- i, fw_size, fw_name);
- usleep_range(20, 100);
- }
+ return hl_fw_push_fw_to_device(hdev, fw_name, dst);
+}

- writeq(*fw_data, dst);
- }
+/*
+ * goya_push_linux_to_device() - Push LINUX FW code to device.
+ * @hdev: Pointer to hl_device structure.
+ *
+ * Copy LINUX fw code from firmware file to HBM BAR.
+ *
+ * Return: 0 on success, non-zero for failure.
+ */
+static int goya_push_linux_to_device(struct hl_device *hdev)
+{
+ char fw_name[200];
+ void __iomem *dst;

- if ((fw->size % 8) != 0)
- writel(*(const u32 *) fw_data, dst);
+ snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
+ dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;

-out:
- release_firmware(fw);
- return rc;
+ return hl_fw_push_fw_to_device(hdev, fw_name, dst);
}

static int goya_pldm_init_cpu(struct hl_device *hdev)
{
- char fw_name[200];
- void __iomem *dst;
u32 val, unit_rst_val;
int rc;

@@ -2406,15 +2368,11 @@ static int goya_pldm_init_cpu(struct hl_device *hdev)
WREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N, unit_rst_val);
val = RREG32(mmPSOC_GLOBAL_CONF_UNIT_RST_N);

- snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-u-boot.bin");
- dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + UBOOT_FW_OFFSET;
- rc = goya_push_fw_to_device(hdev, fw_name, dst);
+ rc = goya_push_uboot_to_device(hdev);
if (rc)
return rc;

- snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
- dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
- rc = goya_push_fw_to_device(hdev, fw_name, dst);
+ rc = goya_push_linux_to_device(hdev);
if (rc)
return rc;

@@ -2476,8 +2434,6 @@ static void goya_read_device_fw_version(struct hl_device *hdev,
static int goya_init_cpu(struct hl_device *hdev, u32 cpu_timeout)
{
struct goya_device *goya = hdev->asic_specific;
- char fw_name[200];
- void __iomem *dst;
u32 status;
int rc;

@@ -2574,9 +2530,7 @@ static int goya_init_cpu(struct hl_device *hdev, u32 cpu_timeout)
goto out;
}

- snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
- dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
- rc = goya_push_fw_to_device(hdev, fw_name, dst);
+ rc = goya_push_linux_to_device(hdev);
if (rc)
return rc;

@@ -2762,7 +2716,7 @@ static int goya_hw_init(struct hl_device *hdev)
return 0;

disable_pci_access:
- goya_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
+ hl_fw_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
disable_msix:
goya_disable_msix(hdev);
disable_queues:
@@ -2869,7 +2823,7 @@ int goya_suspend(struct hl_device *hdev)
{
int rc;

- rc = goya_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
+ rc = hl_fw_send_pci_access_msg(hdev, ARMCP_PACKET_DISABLE_PCI_ACCESS);
if (rc)
dev_err(hdev->dev, "Failed to disable PCI access from CPU\n");

@@ -3150,10 +3104,6 @@ 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)
@@ -3161,74 +3111,8 @@ int goya_send_cpu_message(struct hl_device *hdev, u32 *msg, u16 len,
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;
-
- if (hdev->device_cpu_disabled) {
- rc = -EIO;
- 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) (uintptr_t) &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 device CPU\n");
- hdev->device_cpu_disabled = true;
- goto out;
- }
-
- if (tmp == ARMCP_PACKET_FENCE_VAL) {
- u32 ctl = le32_to_cpu(pkt->ctl);
-
- rc = (ctl & ARMCP_PKT_CTL_RC_MASK) >> ARMCP_PKT_CTL_RC_SHIFT;
- if (rc) {
- dev_err(hdev->dev,
- "F/W ERROR %d for CPU packet %d\n",
- rc, (ctl & ARMCP_PKT_CTL_OPCODE_MASK)
- >> ARMCP_PKT_CTL_OPCODE_SHIFT);
- rc = -EINVAL;
- } else if (result) {
- *result = (long) le64_to_cpu(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;
+ return hl_fw_send_cpu_message(hdev, GOYA_QUEUE_ID_CPU_PQ, msg, len,
+ timeout, result);
}

int goya_test_queue(struct hl_device *hdev, u32 hw_queue_id)
@@ -3306,33 +3190,16 @@ int goya_test_queue(struct hl_device *hdev, u32 hw_queue_id)

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.ctl = cpu_to_le32(ARMCP_PACKET_TEST <<
- ARMCP_PKT_CTL_OPCODE_SHIFT);
- test_pkt.value = cpu_to_le64(ARMCP_PACKET_FENCE_VAL);
-
- rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &test_pkt,
- sizeof(test_pkt), HL_DEVICE_TIMEOUT_USEC, &result);
+ struct goya_device *goya = hdev->asic_specific;

- if (!rc) {
- if (result == ARMCP_PACKET_FENCE_VAL)
- dev_info(hdev->dev,
- "queue test on CPU queue succeeded\n");
- else
- dev_err(hdev->dev,
- "CPU queue test failed (0x%08lX)\n", result);
- } else {
- dev_err(hdev->dev, "CPU queue test failed, error %d\n", rc);
- }
+ /*
+ * check capability here as send_cpu_message() won't update the result
+ * value if no capability
+ */
+ if (!(goya->hw_cap_initialized & HW_CAP_CPU_Q))
+ return 0;

- return rc;
+ return hl_fw_test_cpu_queue(hdev);
}

static int goya_test_queues(struct hl_device *hdev)
@@ -3373,27 +3240,13 @@ static void goya_dma_pool_free(struct hl_device *hdev, void *vaddr,
static 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) (uintptr_t) hdev->cpu_accessible_dma_mem);
-
- return (void *) (uintptr_t) kernel_addr;
+ return hl_fw_cpu_accessible_dma_pool_alloc(hdev, size, dma_handle);
}

static 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) (uintptr_t) vaddr,
- size);
+ hl_fw_cpu_accessible_dma_pool_free(hdev, size, vaddr);
}

static int goya_dma_map_sg(struct hl_device *hdev, struct scatterlist *sg,
@@ -5032,72 +4885,26 @@ static int goya_mmu_update_asid_hop0_addr(struct hl_device *hdev, u32 asid,
int goya_send_heartbeat(struct hl_device *hdev)
{
struct goya_device *goya = hdev->asic_specific;
- struct armcp_packet hb_pkt;
- long result;
- int rc;

if (!(goya->hw_cap_initialized & HW_CAP_CPU_Q))
return 0;

- memset(&hb_pkt, 0, sizeof(hb_pkt));
-
- hb_pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEST <<
- ARMCP_PKT_CTL_OPCODE_SHIFT);
- hb_pkt.value = cpu_to_le64(ARMCP_PACKET_FENCE_VAL);
-
- rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &hb_pkt,
- sizeof(hb_pkt), HL_DEVICE_TIMEOUT_USEC, &result);
-
- if ((rc) || (result != ARMCP_PACKET_FENCE_VAL))
- rc = -EIO;
-
- return rc;
+ return hl_fw_send_heartbeat(hdev);
}

static int goya_armcp_info_get(struct hl_device *hdev)
{
struct goya_device *goya = hdev->asic_specific;
struct asic_fixed_properties *prop = &hdev->asic_prop;
- struct armcp_packet pkt;
- void *armcp_info_cpu_addr;
- dma_addr_t armcp_info_dma_addr;
u64 dram_size;
- long result;
int rc;

if (!(goya->hw_cap_initialized & HW_CAP_CPU_Q))
return 0;

- armcp_info_cpu_addr =
- hdev->asic_funcs->cpu_accessible_dma_pool_alloc(hdev,
- sizeof(struct armcp_info), &armcp_info_dma_addr);
- if (!armcp_info_cpu_addr) {
- dev_err(hdev->dev,
- "Failed to allocate DMA memory for ArmCP info packet\n");
- return -ENOMEM;
- }
-
- memset(armcp_info_cpu_addr, 0, sizeof(struct armcp_info));
-
- memset(&pkt, 0, sizeof(pkt));
-
- pkt.ctl = cpu_to_le32(ARMCP_PACKET_INFO_GET <<
- ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.addr = cpu_to_le64(armcp_info_dma_addr +
- prop->host_phys_base_address);
- pkt.data_max_size = cpu_to_le32(sizeof(struct armcp_info));
-
- rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- GOYA_ARMCP_INFO_TIMEOUT, &result);
-
- if (rc) {
- dev_err(hdev->dev,
- "Failed to send armcp info pkt, error %d\n", rc);
- goto out;
- }
-
- memcpy(&prop->armcp_info, armcp_info_cpu_addr,
- sizeof(prop->armcp_info));
+ rc = hl_fw_armcp_info_get(hdev);
+ if (rc)
+ return rc;

dram_size = le64_to_cpu(prop->armcp_info.dram_size);
if (dram_size) {
@@ -5113,19 +4920,7 @@ static int goya_armcp_info_get(struct hl_device *hdev)
prop->dram_end_address = prop->dram_base_address + dram_size;
}

- rc = hl_build_hwmon_channel_info(hdev, prop->armcp_info.sensors);
- if (rc) {
- dev_err(hdev->dev,
- "Failed to build hwmon channel info, error %d\n", rc);
- rc = -EFAULT;
- goto out;
- }
-
-out:
- hdev->asic_funcs->cpu_accessible_dma_pool_free(hdev,
- sizeof(struct armcp_info), armcp_info_cpu_addr);
-
- return rc;
+ return 0;
}

static void goya_init_clock_gating(struct hl_device *hdev)
@@ -5214,52 +5009,11 @@ static int goya_get_eeprom_data(struct hl_device *hdev, void *data,
size_t max_size)
{
struct goya_device *goya = hdev->asic_specific;
- struct asic_fixed_properties *prop = &hdev->asic_prop;
- struct armcp_packet pkt;
- void *eeprom_info_cpu_addr;
- dma_addr_t eeprom_info_dma_addr;
- long result;
- int rc;

if (!(goya->hw_cap_initialized & HW_CAP_CPU_Q))
return 0;

- eeprom_info_cpu_addr =
- hdev->asic_funcs->cpu_accessible_dma_pool_alloc(hdev,
- max_size, &eeprom_info_dma_addr);
- if (!eeprom_info_cpu_addr) {
- dev_err(hdev->dev,
- "Failed to allocate DMA memory for EEPROM info packet\n");
- return -ENOMEM;
- }
-
- memset(eeprom_info_cpu_addr, 0, max_size);
-
- memset(&pkt, 0, sizeof(pkt));
-
- pkt.ctl = cpu_to_le32(ARMCP_PACKET_EEPROM_DATA_GET <<
- ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.addr = cpu_to_le64(eeprom_info_dma_addr +
- prop->host_phys_base_address);
- pkt.data_max_size = cpu_to_le32(max_size);
-
- rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- GOYA_ARMCP_EEPROM_TIMEOUT, &result);
-
- if (rc) {
- dev_err(hdev->dev,
- "Failed to send armcp EEPROM pkt, error %d\n", rc);
- goto out;
- }
-
- /* result contains the actual size */
- memcpy(data, eeprom_info_cpu_addr, min((size_t)result, max_size));
-
-out:
- hdev->asic_funcs->cpu_accessible_dma_pool_free(hdev, max_size,
- eeprom_info_cpu_addr);
-
- return rc;
+ return hl_fw_get_eeprom_data(hdev, data, max_size);
}

static enum hl_device_hw_state goya_get_hw_state(struct hl_device *hdev)
diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h
index 830551b6b062..6fdc76b5bde0 100644
--- a/drivers/misc/habanalabs/goya/goyaP.h
+++ b/drivers/misc/habanalabs/goya/goyaP.h
@@ -49,9 +49,6 @@

#define MAX_POWER_DEFAULT 200000 /* 200W */

-#define GOYA_ARMCP_INFO_TIMEOUT 10000000 /* 10s */
-#define GOYA_ARMCP_EEPROM_TIMEOUT 10000000 /* 10s */
-
#define DRAM_PHYS_DEFAULT_SIZE 0x100000000ull /* 4GB */

/* DRAM Memory Map */
@@ -142,13 +139,6 @@
#define HW_CAP_GOLDEN 0x00000400
#define HW_CAP_TPC 0x00000800

-#define CPU_PKT_SHIFT 5
-#define CPU_PKT_SIZE (1 << CPU_PKT_SHIFT)
-#define CPU_PKT_MASK (~((1 << CPU_PKT_SHIFT) - 1))
-#define CPU_MAX_PKTS_IN_CB 32
-#define CPU_CB_SIZE (CPU_PKT_SIZE * CPU_MAX_PKTS_IN_CB)
-#define CPU_ACCESSIBLE_MEM_SIZE (HL_QUEUE_LENGTH * CPU_CB_SIZE)
-
enum goya_fw_component {
FW_COMP_UBOOT,
FW_COMP_PREBOOT
@@ -192,7 +182,6 @@ void goya_init_security(struct hl_device *hdev);
u64 goya_get_max_power(struct hl_device *hdev);
void goya_set_max_power(struct hl_device *hdev, u64 value);

-int goya_send_pci_access_msg(struct hl_device *hdev, u32 opcode);
void goya_late_fini(struct hl_device *hdev);
int goya_suspend(struct hl_device *hdev);
int goya_resume(struct hl_device *hdev);
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index a8ee52c880cd..1445ba1cafd4 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -33,6 +33,9 @@

#define HL_PLL_LOW_JOB_FREQ_USEC 5000000 /* 5 s */

+#define HL_ARMCP_INFO_TIMEOUT_USEC 10000000 /* 10s */
+#define HL_ARMCP_EEPROM_TIMEOUT_USEC 10000000 /* 10s */
+
#define HL_MAX_QUEUES 128

#define HL_MAX_JOBS_PER_CS 64
@@ -1351,6 +1354,20 @@ int hl_mmu_unmap(struct hl_ctx *ctx, u64 virt_addr, u32 page_size);
void hl_mmu_swap_out(struct hl_ctx *ctx);
void hl_mmu_swap_in(struct hl_ctx *ctx);

+int hl_fw_push_fw_to_device(struct hl_device *hdev, const char *fw_name,
+ void __iomem *dst);
+int hl_fw_send_pci_access_msg(struct hl_device *hdev, u32 opcode);
+int hl_fw_send_cpu_message(struct hl_device *hdev, u32 hw_queue_id, u32 *msg,
+ u16 len, u32 timeout, long *result);
+int hl_fw_test_cpu_queue(struct hl_device *hdev);
+void *hl_fw_cpu_accessible_dma_pool_alloc(struct hl_device *hdev, size_t size,
+ dma_addr_t *dma_handle);
+void hl_fw_cpu_accessible_dma_pool_free(struct hl_device *hdev, size_t size,
+ void *vaddr);
+int hl_fw_send_heartbeat(struct hl_device *hdev);
+int hl_fw_armcp_info_get(struct hl_device *hdev);
+int hl_fw_get_eeprom_data(struct hl_device *hdev, void *data, size_t max_size);
+
long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr);
void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq);
long hl_get_temperature(struct hl_device *hdev, int sensor_index, u32 attr);
diff --git a/drivers/misc/habanalabs/include/armcp_if.h b/drivers/misc/habanalabs/include/armcp_if.h
index 9dddb917e72c..ccb82390241e 100644
--- a/drivers/misc/habanalabs/include/armcp_if.h
+++ b/drivers/misc/habanalabs/include/armcp_if.h
@@ -302,6 +302,14 @@ enum armcp_pwm_attributes {
armcp_pwm_enable
};

+#define HL_CPU_PKT_SHIFT 5
+#define HL_CPU_PKT_SIZE (1 << HL_CPU_PKT_SHIFT)
+#define HL_CPU_PKT_MASK (~((1 << HL_CPU_PKT_SHIFT) - 1))
+#define HL_CPU_MAX_PKTS_IN_CB 32
+#define HL_CPU_CB_SIZE (HL_CPU_PKT_SIZE * \
+ HL_CPU_MAX_PKTS_IN_CB)
+#define HL_CPU_ACCESSIBLE_MEM_SIZE (HL_QUEUE_LENGTH * HL_CPU_CB_SIZE)
+
/* Event Queue Packets */

struct eq_generic_event {
--
2.17.1
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  Last update: 2019-03-17 21:00    [W:0.071 / U:2.264 seconds]
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