Char/Misc driver fixes for 5.11-rc5

Here are some small char/misc driver fixes for 5.11-rc5.  Included in
 here are:
 	- habanalabs driver fixes
 	- phy driver fixes
 	- hwtracing driver fixes
 	- rtsx cardreader driver fix
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small char/misc driver fixes for 5.11-rc5:

   - habanalabs driver fixes

   - phy driver fixes

   - hwtracing driver fixes

   - rtsx cardreader driver fix

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: rtsx: init value of aspm_enabled
  habanalabs: disable FW events on device removal
  habanalabs: fix backward compatibility of idle check
  habanalabs: zero pci counters packet before submit to FW
  intel_th: pci: Add Alder Lake-P support
  stm class: Fix module init return on allocation failure
  habanalabs: prevent soft lockup during unmap
  habanalabs: fix reset process in case of failures
  habanalabs: fix dma_addr passed to dma_mmap_coherent
  phy: mediatek: allow compile-testing the dsi phy
  phy: cpcap-usb: Fix warning for missing regulator_disable
  PHY: Ingenic: fix unconditional build of phy-ingenic-usb

drivers/hwtracing/intel_th/pci.c

@@ -268,6 +268,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7aa6),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
 	},
+	{
+		/* Alder Lake-P */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x51a6),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
 	{
 		/* Alder Lake CPU */
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x466f),

drivers/hwtracing/stm/heartbeat.c

@@ -64,7 +64,7 @@ static void stm_heartbeat_unlink(struct stm_source_data *data)
 
 static int stm_heartbeat_init(void)
 {
-	int i, ret = -ENOMEM;
+	int i, ret;
 
 	if (nr_devs < 0 || nr_devs > STM_HEARTBEAT_MAX)
 		return -EINVAL;
@@ -72,8 +72,10 @@ static int stm_heartbeat_init(void)
 	for (i = 0; i < nr_devs; i++) {
 		stm_heartbeat[i].data.name =
 			kasprintf(GFP_KERNEL, "heartbeat.%d", i);
-		if (!stm_heartbeat[i].data.name)
+		if (!stm_heartbeat[i].data.name) {
+			ret = -ENOMEM;
 			goto fail_unregister;
+		}
 
 		stm_heartbeat[i].data.nr_chans	= 1;
 		stm_heartbeat[i].data.link	= stm_heartbeat_link;

drivers/misc/cardreader/rtsx_pcr.c

@@ -1512,6 +1512,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 	struct pcr_handle *handle;
 	u32 base, len;
 	int ret, i, bar = 0;
+	u8 val;
 
 	dev_dbg(&(pcidev->dev),
 		": Realtek PCI-E Card Reader found at %s [%04x:%04x] (rev %x)\n",
@@ -1577,7 +1578,11 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 	pcr->host_cmds_addr = pcr->rtsx_resv_buf_addr;
 	pcr->host_sg_tbl_ptr = pcr->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
 	pcr->host_sg_tbl_addr = pcr->rtsx_resv_buf_addr + HOST_CMDS_BUF_LEN;
-
+	rtsx_pci_read_register(pcr, ASPM_FORCE_CTL, &val);
+	if (val & FORCE_ASPM_CTL0 && val & FORCE_ASPM_CTL1)
+		pcr->aspm_enabled = false;
+	else
+		pcr->aspm_enabled = true;
 	pcr->card_inserted = 0;
 	pcr->card_removed = 0;
 	INIT_DELAYED_WORK(&pcr->carddet_work, rtsx_pci_card_detect);

drivers/misc/habanalabs/common/device.c

@@ -1037,7 +1037,7 @@ kill_processes:
 
 	if (hard_reset) {
 		/* Release kernel context */
-		if (hl_ctx_put(hdev->kernel_ctx) == 1)
+		if (hdev->kernel_ctx && hl_ctx_put(hdev->kernel_ctx) == 1)
 			hdev->kernel_ctx = NULL;
 		hl_vm_fini(hdev);
 		hl_mmu_fini(hdev);
@@ -1487,6 +1487,15 @@ void hl_device_fini(struct hl_device *hdev)
 		}
 	}
 
+	/* Disable PCI access from device F/W so it won't send us additional
+	 * interrupts. We disable MSI/MSI-X at the halt_engines function and we
+	 * can't have the F/W sending us interrupts after that. We need to
+	 * disable the access here because if the device is marked disable, the
+	 * message won't be send. Also, in case of heartbeat, the device CPU is
+	 * marked as disable so this message won't be sent
+	 */
+	hl_fw_send_pci_access_msg(hdev,	CPUCP_PACKET_DISABLE_PCI_ACCESS);
+
 	/* Mark device as disabled */
 	hdev->disabled = true;
 

drivers/misc/habanalabs/common/firmware_if.c

@@ -402,6 +402,10 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
 	}
 	counters->rx_throughput = result;
 
+	memset(&pkt, 0, sizeof(pkt));
+	pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_THROUGHPUT_GET <<
+			CPUCP_PKT_CTL_OPCODE_SHIFT);
+
 	/* Fetch PCI tx counter */
 	pkt.index = cpu_to_le32(cpucp_pcie_throughput_tx);
 	rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
@@ -414,6 +418,7 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
 	counters->tx_throughput = result;
 
 	/* Fetch PCI replay counter */
+	memset(&pkt, 0, sizeof(pkt));
 	pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_REPLAY_CNT_GET <<
 			CPUCP_PKT_CTL_OPCODE_SHIFT);
 

drivers/misc/habanalabs/common/habanalabs.h

@@ -2182,6 +2182,7 @@ void hl_mmu_v1_set_funcs(struct hl_device *hdev, struct hl_mmu_funcs *mmu);
 int hl_mmu_va_to_pa(struct hl_ctx *ctx, u64 virt_addr, u64 *phys_addr);
 int hl_mmu_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
 			struct hl_mmu_hop_info *hops);
+bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr);
 
 int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
 				void __iomem *dst, u32 src_offset, u32 size);

drivers/misc/habanalabs/common/habanalabs_ioctl.c

@@ -133,6 +133,8 @@ static int hw_idle(struct hl_device *hdev, struct hl_info_args *args)
 
 	hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev,
 					&hw_idle.busy_engines_mask_ext, NULL);
+	hw_idle.busy_engines_mask =
+			lower_32_bits(hw_idle.busy_engines_mask_ext);
 
 	return copy_to_user(out, &hw_idle,
 		min((size_t) max_size, sizeof(hw_idle))) ? -EFAULT : 0;

drivers/misc/habanalabs/common/memory.c

@@ -886,8 +886,10 @@ static void unmap_phys_pg_pack(struct hl_ctx *ctx, u64 vaddr,
 {
 	struct hl_device *hdev = ctx->hdev;
 	u64 next_vaddr, i;
+	bool is_host_addr;
 	u32 page_size;
 
+	is_host_addr = !hl_is_dram_va(hdev, vaddr);
 	page_size = phys_pg_pack->page_size;
 	next_vaddr = vaddr;
 
@@ -900,9 +902,13 @@ static void unmap_phys_pg_pack(struct hl_ctx *ctx, u64 vaddr,
 		/*
 		 * unmapping on Palladium can be really long, so avoid a CPU
 		 * soft lockup bug by sleeping a little between unmapping pages
+		 *
+		 * In addition, when unmapping host memory we pass through
+		 * the Linux kernel to unpin the pages and that takes a long
+		 * time. Therefore, sleep every 32K pages to avoid soft lockup
 		 */
-		if (hdev->pldm)
-			usleep_range(500, 1000);
+		if (hdev->pldm || (is_host_addr && (i & 0x7FFF) == 0))
+			usleep_range(50, 200);
 	}
 }
 

drivers/misc/habanalabs/common/mmu.c

@@ -9,7 +9,7 @@
 
 #include "habanalabs.h"
 
-static bool is_dram_va(struct hl_device *hdev, u64 virt_addr)
+bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr)
 {
 	struct asic_fixed_properties *prop = &hdev->asic_prop;
 
@@ -156,7 +156,7 @@ int hl_mmu_unmap_page(struct hl_ctx *ctx, u64 virt_addr, u32 page_size,
 	if (!hdev->mmu_enable)
 		return 0;
 
-	is_dram_addr = is_dram_va(hdev, virt_addr);
+	is_dram_addr = hl_is_dram_va(hdev, virt_addr);
 
 	if (is_dram_addr)
 		mmu_prop = &prop->dmmu;
@@ -236,7 +236,7 @@ int hl_mmu_map_page(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr,
 	if (!hdev->mmu_enable)
 		return 0;
 
-	is_dram_addr = is_dram_va(hdev, virt_addr);
+	is_dram_addr = hl_is_dram_va(hdev, virt_addr);
 
 	if (is_dram_addr)
 		mmu_prop = &prop->dmmu;

drivers/misc/habanalabs/common/mmu_v1.c

@@ -467,8 +467,16 @@ static void hl_mmu_v1_fini(struct hl_device *hdev)
 {
 	/* MMU H/W fini was already done in device hw_fini() */
 
-	kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0);
-	gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
+	if (!ZERO_OR_NULL_PTR(hdev->mmu_priv.hr.mmu_shadow_hop0)) {
+		kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0);
+		gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
+	}
+
+	/* Make sure that if we arrive here again without init was called we
+	 * won't cause kernel panic. This can happen for example if we fail
+	 * during hard reset code at certain points
+	 */
+	hdev->mmu_priv.dr.mmu_shadow_hop0 = NULL;
 }
 
 /**

drivers/misc/habanalabs/gaudi/gaudi.c

@@ -4002,7 +4002,8 @@ static int gaudi_cb_mmap(struct hl_device *hdev, struct vm_area_struct *vma,
 	vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP |
 			VM_DONTCOPY | VM_NORESERVE;
 
-	rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, dma_addr, size);
+	rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr,
+				(dma_addr - HOST_PHYS_BASE), size);
 	if (rc)
 		dev_err(hdev->dev, "dma_mmap_coherent error %d", rc);
 

drivers/misc/habanalabs/goya/goya.c

@@ -2719,7 +2719,8 @@ static int goya_cb_mmap(struct hl_device *hdev, struct vm_area_struct *vma,
 	vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP |
 			VM_DONTCOPY | VM_NORESERVE;
 
-	rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, dma_addr, size);
+	rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr,
+				(dma_addr - HOST_PHYS_BASE), size);
 	if (rc)
 		dev_err(hdev->dev, "dma_mmap_coherent error %d", rc);
 

drivers/phy/ingenic/Makefile

@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-y		+= phy-ingenic-usb.o
+obj-$(CONFIG_PHY_INGENIC_USB)		+= phy-ingenic-usb.o

drivers/phy/mediatek/Kconfig

@@ -49,7 +49,9 @@ config PHY_MTK_HDMI
 
 config PHY_MTK_MIPI_DSI
 	tristate "MediaTek MIPI-DSI Driver"
-	depends on ARCH_MEDIATEK && OF
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	depends on COMMON_CLK
+	depends on OF
 	select GENERIC_PHY
 	help
 	  Support MIPI DSI for Mediatek SoCs.

drivers/phy/motorola/phy-cpcap-usb.c

@@ -662,35 +662,42 @@ static int cpcap_usb_phy_probe(struct platform_device *pdev)
 	generic_phy = devm_phy_create(ddata->dev, NULL, &ops);
 	if (IS_ERR(generic_phy)) {
 		error = PTR_ERR(generic_phy);
-		return PTR_ERR(generic_phy);
+		goto out_reg_disable;
 	}
 
 	phy_set_drvdata(generic_phy, ddata);
 
 	phy_provider = devm_of_phy_provider_register(ddata->dev,
 						     of_phy_simple_xlate);
-	if (IS_ERR(phy_provider))
-		return PTR_ERR(phy_provider);
+	if (IS_ERR(phy_provider)) {
+		error = PTR_ERR(phy_provider);
+		goto out_reg_disable;
+	}
 
 	error = cpcap_usb_init_optional_pins(ddata);
 	if (error)
-		return error;
+		goto out_reg_disable;
 
 	cpcap_usb_init_optional_gpios(ddata);
 
 	error = cpcap_usb_init_iio(ddata);
 	if (error)
-		return error;
+		goto out_reg_disable;
 
 	error = cpcap_usb_init_interrupts(pdev, ddata);
 	if (error)
-		return error;
+		goto out_reg_disable;
 
 	usb_add_phy_dev(&ddata->phy);
 	atomic_set(&ddata->active, 1);
 	schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
 
 	return 0;
+
+out_reg_disable:
+	regulator_disable(ddata->vusb);
+
+	return error;
 }
 
 static int cpcap_usb_phy_remove(struct platform_device *pdev)