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path: root/drivers/misc/habanalabs/gaudi/gaudi.c
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Diffstat (limited to 'drivers/misc/habanalabs/gaudi/gaudi.c')
-rw-r--r--drivers/misc/habanalabs/gaudi/gaudi.c123
1 files changed, 84 insertions, 39 deletions
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 834470d10b46..637a9d608707 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -80,6 +80,7 @@
#define GAUDI_PLDM_QMAN0_TIMEOUT_USEC (HL_DEVICE_TIMEOUT_USEC * 30)
#define GAUDI_PLDM_TPC_KERNEL_WAIT_USEC (HL_DEVICE_TIMEOUT_USEC * 30)
#define GAUDI_BOOT_FIT_REQ_TIMEOUT_USEC 1000000 /* 1s */
+#define GAUDI_MSG_TO_CPU_TIMEOUT_USEC 4000000 /* 4s */
#define GAUDI_QMAN0_FENCE_VAL 0x72E91AB9
@@ -98,6 +99,11 @@
#define GAUDI_ARB_WDT_TIMEOUT 0x1000000
+#define GAUDI_CLK_GATE_DEBUGFS_MASK (\
+ BIT(GAUDI_ENGINE_ID_MME_0) |\
+ BIT(GAUDI_ENGINE_ID_MME_2) |\
+ GENMASK_ULL(GAUDI_ENGINE_ID_TPC_7, GAUDI_ENGINE_ID_TPC_0))
+
static const char gaudi_irq_name[GAUDI_MSI_ENTRIES][GAUDI_MAX_STRING_LEN] = {
"gaudi cq 0_0", "gaudi cq 0_1", "gaudi cq 0_2", "gaudi cq 0_3",
"gaudi cq 1_0", "gaudi cq 1_1", "gaudi cq 1_2", "gaudi cq 1_3",
@@ -106,14 +112,14 @@ static const char gaudi_irq_name[GAUDI_MSI_ENTRIES][GAUDI_MAX_STRING_LEN] = {
};
static const u8 gaudi_dma_assignment[GAUDI_DMA_MAX] = {
- [GAUDI_PCI_DMA_1] = 0,
- [GAUDI_PCI_DMA_2] = 1,
- [GAUDI_PCI_DMA_3] = 5,
- [GAUDI_HBM_DMA_1] = 2,
- [GAUDI_HBM_DMA_2] = 3,
- [GAUDI_HBM_DMA_3] = 4,
- [GAUDI_HBM_DMA_4] = 6,
- [GAUDI_HBM_DMA_5] = 7
+ [GAUDI_PCI_DMA_1] = GAUDI_ENGINE_ID_DMA_0,
+ [GAUDI_PCI_DMA_2] = GAUDI_ENGINE_ID_DMA_1,
+ [GAUDI_PCI_DMA_3] = GAUDI_ENGINE_ID_DMA_5,
+ [GAUDI_HBM_DMA_1] = GAUDI_ENGINE_ID_DMA_2,
+ [GAUDI_HBM_DMA_2] = GAUDI_ENGINE_ID_DMA_3,
+ [GAUDI_HBM_DMA_3] = GAUDI_ENGINE_ID_DMA_4,
+ [GAUDI_HBM_DMA_4] = GAUDI_ENGINE_ID_DMA_6,
+ [GAUDI_HBM_DMA_5] = GAUDI_ENGINE_ID_DMA_7
};
static const u8 gaudi_cq_assignment[NUMBER_OF_CMPLT_QUEUES] = {
@@ -1819,7 +1825,7 @@ static void gaudi_init_golden_registers(struct hl_device *hdev)
gaudi_init_rate_limiter(hdev);
- gaudi_disable_clock_gating(hdev);
+ hdev->asic_funcs->disable_clock_gating(hdev);
for (tpc_id = 0, tpc_offset = 0;
tpc_id < TPC_NUMBER_OF_ENGINES;
@@ -2531,46 +2537,55 @@ static void gaudi_tpc_stall(struct hl_device *hdev)
WREG32(mmTPC7_CFG_TPC_STALL, 1 << TPC0_CFG_TPC_STALL_V_SHIFT);
}
-static void gaudi_enable_clock_gating(struct hl_device *hdev)
+static void gaudi_set_clock_gating(struct hl_device *hdev)
{
struct gaudi_device *gaudi = hdev->asic_specific;
u32 qman_offset;
int i;
- if (!hdev->clock_gating)
- return;
-
- if (gaudi->hw_cap_initialized & HW_CAP_CLK_GATE)
- return;
-
/* In case we are during debug session, don't enable the clock gate
* as it may interfere
*/
if (hdev->in_debug)
return;
- for (i = 0, qman_offset = 0 ; i < PCI_DMA_NUMBER_OF_CHNLS ; i++) {
+ for (i = GAUDI_PCI_DMA_1, qman_offset = 0 ; i < GAUDI_HBM_DMA_1 ; i++) {
+ if (!(hdev->clock_gating_mask &
+ (BIT_ULL(gaudi_dma_assignment[i]))))
+ continue;
+
qman_offset = gaudi_dma_assignment[i] * DMA_QMAN_OFFSET;
WREG32(mmDMA0_QM_CGM_CFG1 + qman_offset, QMAN_CGM1_PWR_GATE_EN);
WREG32(mmDMA0_QM_CGM_CFG + qman_offset,
QMAN_UPPER_CP_CGM_PWR_GATE_EN);
}
- for (; i < HBM_DMA_NUMBER_OF_CHNLS ; i++) {
+ for (i = GAUDI_HBM_DMA_1 ; i < GAUDI_DMA_MAX ; i++) {
+ if (!(hdev->clock_gating_mask &
+ (BIT_ULL(gaudi_dma_assignment[i]))))
+ continue;
+
qman_offset = gaudi_dma_assignment[i] * DMA_QMAN_OFFSET;
WREG32(mmDMA0_QM_CGM_CFG1 + qman_offset, QMAN_CGM1_PWR_GATE_EN);
WREG32(mmDMA0_QM_CGM_CFG + qman_offset,
QMAN_COMMON_CP_CGM_PWR_GATE_EN);
}
- WREG32(mmMME0_QM_CGM_CFG1, QMAN_CGM1_PWR_GATE_EN);
- WREG32(mmMME0_QM_CGM_CFG,
- QMAN_COMMON_CP_CGM_PWR_GATE_EN);
- WREG32(mmMME2_QM_CGM_CFG1, QMAN_CGM1_PWR_GATE_EN);
- WREG32(mmMME2_QM_CGM_CFG,
- QMAN_COMMON_CP_CGM_PWR_GATE_EN);
+ if (hdev->clock_gating_mask & (BIT_ULL(GAUDI_ENGINE_ID_MME_0))) {
+ WREG32(mmMME0_QM_CGM_CFG1, QMAN_CGM1_PWR_GATE_EN);
+ WREG32(mmMME0_QM_CGM_CFG, QMAN_COMMON_CP_CGM_PWR_GATE_EN);
+ }
+
+ if (hdev->clock_gating_mask & (BIT_ULL(GAUDI_ENGINE_ID_MME_2))) {
+ WREG32(mmMME2_QM_CGM_CFG1, QMAN_CGM1_PWR_GATE_EN);
+ WREG32(mmMME2_QM_CGM_CFG, QMAN_COMMON_CP_CGM_PWR_GATE_EN);
+ }
for (i = 0, qman_offset = 0 ; i < TPC_NUMBER_OF_ENGINES ; i++) {
+ if (!(hdev->clock_gating_mask &
+ (BIT_ULL(GAUDI_ENGINE_ID_TPC_0 + i))))
+ continue;
+
WREG32(mmTPC0_QM_CGM_CFG1 + qman_offset,
QMAN_CGM1_PWR_GATE_EN);
WREG32(mmTPC0_QM_CGM_CFG + qman_offset,
@@ -2663,7 +2678,7 @@ static void gaudi_halt_engines(struct hl_device *hdev, bool hard_reset)
gaudi_stop_hbm_dma_qmans(hdev);
gaudi_stop_pci_dma_qmans(hdev);
- gaudi_disable_clock_gating(hdev);
+ hdev->asic_funcs->disable_clock_gating(hdev);
msleep(wait_timeout_ms);
@@ -3003,7 +3018,7 @@ static int gaudi_hw_init(struct hl_device *hdev)
gaudi_init_tpc_qmans(hdev);
- gaudi_enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
gaudi_enable_timestamp(hdev);
@@ -3112,7 +3127,9 @@ static void gaudi_hw_fini(struct hl_device *hdev, bool hard_reset)
HW_CAP_HBM_DMA | HW_CAP_PLL |
HW_CAP_MMU |
HW_CAP_SRAM_SCRAMBLER |
- HW_CAP_HBM_SCRAMBLER);
+ HW_CAP_HBM_SCRAMBLER |
+ HW_CAP_CLK_GATE);
+
memset(gaudi->events_stat, 0, sizeof(gaudi->events_stat));
}
@@ -3463,6 +3480,9 @@ static int gaudi_send_cpu_message(struct hl_device *hdev, u32 *msg,
return 0;
}
+ if (!timeout)
+ timeout = GAUDI_MSG_TO_CPU_TIMEOUT_USEC;
+
return hl_fw_send_cpu_message(hdev, GAUDI_QUEUE_ID_CPU_PQ, msg, len,
timeout, result);
}
@@ -3865,6 +3885,12 @@ static int gaudi_validate_cb(struct hl_device *hdev,
rc = -EPERM;
break;
+ case PACKET_WREG_BULK:
+ dev_err(hdev->dev,
+ "User not allowed to use WREG_BULK\n");
+ rc = -EPERM;
+ break;
+
case PACKET_LOAD_AND_EXE:
rc = gaudi_validate_load_and_exe_pkt(hdev, parser,
(struct packet_load_and_exe *) user_pkt);
@@ -3880,7 +3906,6 @@ static int gaudi_validate_cb(struct hl_device *hdev,
break;
case PACKET_WREG_32:
- case PACKET_WREG_BULK:
case PACKET_MSG_LONG:
case PACKET_MSG_SHORT:
case PACKET_REPEAT:
@@ -4521,13 +4546,18 @@ static int gaudi_debugfs_read32(struct hl_device *hdev, u64 addr, u32 *val)
int rc = 0;
if ((addr >= CFG_BASE) && (addr < CFG_BASE + CFG_SIZE)) {
- if (gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) {
+
+ if ((gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) &&
+ (hdev->clock_gating_mask &
+ GAUDI_CLK_GATE_DEBUGFS_MASK)) {
+
dev_err_ratelimited(hdev->dev,
"Can't read register - clock gating is enabled!\n");
rc = -EFAULT;
} else {
*val = RREG32(addr - CFG_BASE);
}
+
} else if ((addr >= SRAM_BASE_ADDR) &&
(addr < SRAM_BASE_ADDR + SRAM_BAR_SIZE)) {
*val = readl(hdev->pcie_bar[SRAM_BAR_ID] +
@@ -4563,13 +4593,18 @@ static int gaudi_debugfs_write32(struct hl_device *hdev, u64 addr, u32 val)
int rc = 0;
if ((addr >= CFG_BASE) && (addr < CFG_BASE + CFG_SIZE)) {
- if (gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) {
+
+ if ((gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) &&
+ (hdev->clock_gating_mask &
+ GAUDI_CLK_GATE_DEBUGFS_MASK)) {
+
dev_err_ratelimited(hdev->dev,
"Can't write register - clock gating is enabled!\n");
rc = -EFAULT;
} else {
WREG32(addr - CFG_BASE, val);
}
+
} else if ((addr >= SRAM_BASE_ADDR) &&
(addr < SRAM_BASE_ADDR + SRAM_BAR_SIZE)) {
writel(val, hdev->pcie_bar[SRAM_BAR_ID] +
@@ -4605,7 +4640,11 @@ static int gaudi_debugfs_read64(struct hl_device *hdev, u64 addr, u64 *val)
int rc = 0;
if ((addr >= CFG_BASE) && (addr <= CFG_BASE + CFG_SIZE - sizeof(u64))) {
- if (gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) {
+
+ if ((gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) &&
+ (hdev->clock_gating_mask &
+ GAUDI_CLK_GATE_DEBUGFS_MASK)) {
+
dev_err_ratelimited(hdev->dev,
"Can't read register - clock gating is enabled!\n");
rc = -EFAULT;
@@ -4615,6 +4654,7 @@ static int gaudi_debugfs_read64(struct hl_device *hdev, u64 addr, u64 *val)
*val = (((u64) val_h) << 32) | val_l;
}
+
} else if ((addr >= SRAM_BASE_ADDR) &&
(addr <= SRAM_BASE_ADDR + SRAM_BAR_SIZE - sizeof(u64))) {
*val = readq(hdev->pcie_bar[SRAM_BAR_ID] +
@@ -4651,7 +4691,11 @@ static int gaudi_debugfs_write64(struct hl_device *hdev, u64 addr, u64 val)
int rc = 0;
if ((addr >= CFG_BASE) && (addr <= CFG_BASE + CFG_SIZE - sizeof(u64))) {
- if (gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) {
+
+ if ((gaudi->hw_cap_initialized & HW_CAP_CLK_GATE) &&
+ (hdev->clock_gating_mask &
+ GAUDI_CLK_GATE_DEBUGFS_MASK)) {
+
dev_err_ratelimited(hdev->dev,
"Can't write register - clock gating is enabled!\n");
rc = -EFAULT;
@@ -4660,6 +4704,7 @@ static int gaudi_debugfs_write64(struct hl_device *hdev, u64 addr, u64 val)
WREG32(addr + sizeof(u32) - CFG_BASE,
upper_32_bits(val));
}
+
} else if ((addr >= SRAM_BASE_ADDR) &&
(addr <= SRAM_BASE_ADDR + SRAM_BAR_SIZE - sizeof(u64))) {
writeq(val, hdev->pcie_bar[SRAM_BAR_ID] +
@@ -4881,7 +4926,7 @@ static void gaudi_mmu_prepare(struct hl_device *hdev, u32 asid)
gaudi_mmu_prepare_reg(hdev, mmPSOC_GLOBAL_CONF_TRACE_ARUSER, asid);
gaudi_mmu_prepare_reg(hdev, mmPSOC_GLOBAL_CONF_TRACE_AWUSER, asid);
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
}
@@ -5262,7 +5307,7 @@ static void gaudi_print_ecc_info_generic(struct hl_device *hdev,
}
if (disable_clock_gating) {
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
}
}
@@ -5749,7 +5794,7 @@ static bool gaudi_tpc_read_interrupts(struct hl_device *hdev, u8 tpc_id,
/* Clear interrupts */
WREG32(mmTPC0_CFG_TPC_INTR_CAUSE + tpc_offset, 0);
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
@@ -6265,7 +6310,7 @@ static bool gaudi_is_device_idle(struct hl_device *hdev, u32 *mask,
if (s)
seq_puts(s, "\n");
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
@@ -6366,7 +6411,7 @@ static int gaudi_run_tpc_kernel(struct hl_device *hdev, u64 tpc_kernel,
dev_err(hdev->dev,
"Timeout while waiting for TPC%d icache prefetch\n",
tpc_id);
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
return -EIO;
}
@@ -6395,7 +6440,7 @@ static int gaudi_run_tpc_kernel(struct hl_device *hdev, u64 tpc_kernel,
1000,
kernel_timeout);
- hdev->asic_funcs->enable_clock_gating(hdev);
+ hdev->asic_funcs->set_clock_gating(hdev);
mutex_unlock(&gaudi->clk_gate_mutex);
if (rc) {
@@ -6736,7 +6781,7 @@ static const struct hl_asic_funcs gaudi_funcs = {
.mmu_invalidate_cache = gaudi_mmu_invalidate_cache,
.mmu_invalidate_cache_range = gaudi_mmu_invalidate_cache_range,
.send_heartbeat = gaudi_send_heartbeat,
- .enable_clock_gating = gaudi_enable_clock_gating,
+ .set_clock_gating = gaudi_set_clock_gating,
.disable_clock_gating = gaudi_disable_clock_gating,
.debug_coresight = gaudi_debug_coresight,
.is_device_idle = gaudi_is_device_idle,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 11:25:50 +0100