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habanalabs: Move device CPU code into common file 

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>
This commit is contained in:
Tomer Tayar 2019-03-04 10:22:09 +02:00 committed by Oded Gabbay
parent 5eb420446a
commit 3110c60fdc
6 changed files with 408 additions and 316 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/misc/habanalabs/Makefile
View File

@ -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

325
drivers/misc/habanalabs/firmware_if.c Normal file
View File

@ -0,0 +1,325 @@
// 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>
#include <linux/io-64-nonatomic-lo-hi.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;
}

361
drivers/misc/habanalabs/goya/goya.c
View File

@ -12,10 +12,8 @@
#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>
/*
* GOYA security scheme:
@ -373,18 +371,6 @@ 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 +788,7 @@ 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 +814,7 @@ 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 +886,16 @@ 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 +905,7 @@ 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 +920,7 @@ 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 +943,7 @@ 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 +1223,7 @@ 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 +2311,45 @@ static void goya_halt_engines(struct hl_device *hdev, bool hard_reset)
}
/*
* goya_push_fw_to_device - Push FW code to device
* goya_push_uboot_to_device() - Push u-boot FW code to device.
* @hdev: Pointer to hl_device structure.
*
* @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;
char fw_name[200];
void __iomem *dst;
rc = request_firmware(&fw, fw_name, hdev->dev);
snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-u-boot.bin");
dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + UBOOT_FW_OFFSET;
if (rc) {
dev_err(hdev->dev, "Failed to request %s\n", fw_name);
goto out;
}
return hl_fw_push_fw_to_device(hdev, fw_name, dst);
}
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;
}
/*
* 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;
dev_dbg(hdev->dev, "%s firmware size == %zu\n", fw_name, fw_size);
snprintf(fw_name, sizeof(fw_name), "habanalabs/goya/goya-fit.itb");
dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
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;
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 +2367,11 @@ 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 +2433,6 @@ 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 +2529,7 @@ 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 +2715,7 @@ 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 +2822,7 @@ 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 +3103,6 @@ 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 +3110,8 @@ 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 +3189,16 @@ free_fence_ptr:
int goya_test_cpu_queue(struct hl_device *hdev)
{
struct armcp_packet test_pkt;
long result;
int rc;
struct goya_device *goya = hdev->asic_specific;
/* cpu_queues_enable flag is always checked in send cpu message */
/*
* 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;
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);
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;
return hl_fw_test_cpu_queue(hdev);
}
static int goya_test_queues(struct hl_device *hdev)
@ -3373,27 +3239,13 @@ 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 +4884,26 @@ 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 +4919,7 @@ 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 +5008,11 @@ 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)

11
drivers/misc/habanalabs/goya/goyaP.h
View File

@ -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);

17
drivers/misc/habanalabs/habanalabs.h
View File

@ -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);

8
drivers/misc/habanalabs/include/armcp_if.h
View File

@ -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 {