* drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: sparse: incorrect type in argument 2 (different address spaces)
@ 2024-03-04 18:09 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-03-04 18:09 UTC (permalink / raw)
To: jasperwang, kaixuxia, frankjpliu, kasong, sagazchen, kernelxing,
aurelianliu, jason.zeng, wu.zheng, yingbao.jia, pei.p.jia
Cc: oe-kbuild-all
Hi Jason,
First bad commit (maybe != root cause):
tree: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git linux-5.4/lts/5.4.119-20.0009
head: 3bf5c3f6e32e9cfe13f09bac3ae93b8e39d472c1
commit: c29a8fe73857e9fa29d3d4bc9897fb7f126a7af2 vfio: IOMMU_API should be selected
date: 2 years, 11 months ago
config: arm64-randconfig-r131-20240303 (https://download.01.org/0day-ci/archive/20240305/202403050218.jPy7l2jv-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240305/202403050218.jPy7l2jv-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403050218.jPy7l2jv-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: got void *
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: got void *
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: got void [noderef] <asn:2> *ioaddr
vim +33 drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
^590eaf1fec755 Kaixu Xia 2021-03-16 26
^590eaf1fec755 Kaixu Xia 2021-03-16 27 static unsigned int xmdio_read(void *ioaddr, unsigned int mmd,
^590eaf1fec755 Kaixu Xia 2021-03-16 28 unsigned int reg)
^590eaf1fec755 Kaixu Xia 2021-03-16 29 {
^590eaf1fec755 Kaixu Xia 2021-03-16 30 unsigned int mmd_address, value;
^590eaf1fec755 Kaixu Xia 2021-03-16 31
^590eaf1fec755 Kaixu Xia 2021-03-16 32 mmd_address = (mmd << 16) | ((reg) & 0xffff);
^590eaf1fec755 Kaixu Xia 2021-03-16 @33 iowrite32(mmd_address >> 8, ioaddr + (PCS_MMD_SELECT << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 @34 value = ioread32(ioaddr + ((mmd_address & 0xff) << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 35 return value;
^590eaf1fec755 Kaixu Xia 2021-03-16 36 }
^590eaf1fec755 Kaixu Xia 2021-03-16 37
^590eaf1fec755 Kaixu Xia 2021-03-16 38 static void xmdio_write(void *ioaddr, unsigned int mmd,
^590eaf1fec755 Kaixu Xia 2021-03-16 39 unsigned int reg, unsigned int value)
^590eaf1fec755 Kaixu Xia 2021-03-16 40 {
^590eaf1fec755 Kaixu Xia 2021-03-16 41 unsigned int mmd_address;
^590eaf1fec755 Kaixu Xia 2021-03-16 42
^590eaf1fec755 Kaixu Xia 2021-03-16 43 mmd_address = (mmd << 16) | ((reg) & 0xffff);
^590eaf1fec755 Kaixu Xia 2021-03-16 44 iowrite32(mmd_address >> 8, ioaddr + (PCS_MMD_SELECT << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 45 iowrite32(value, ioaddr + ((mmd_address & 0xff) << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 46 }
^590eaf1fec755 Kaixu Xia 2021-03-16 47
^590eaf1fec755 Kaixu Xia 2021-03-16 48 static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
^590eaf1fec755 Kaixu Xia 2021-03-16 49 {
^590eaf1fec755 Kaixu Xia 2021-03-16 50 struct vfio_platform_region *xgmac_regs = &vdev->regions[0];
^590eaf1fec755 Kaixu Xia 2021-03-16 51 struct vfio_platform_region *xpcs_regs = &vdev->regions[1];
^590eaf1fec755 Kaixu Xia 2021-03-16 52 u32 dma_mr_value, pcs_value, value;
^590eaf1fec755 Kaixu Xia 2021-03-16 53 unsigned int count;
^590eaf1fec755 Kaixu Xia 2021-03-16 54
^590eaf1fec755 Kaixu Xia 2021-03-16 55 if (!xgmac_regs->ioaddr) {
^590eaf1fec755 Kaixu Xia 2021-03-16 56 xgmac_regs->ioaddr =
^590eaf1fec755 Kaixu Xia 2021-03-16 57 ioremap_nocache(xgmac_regs->addr, xgmac_regs->size);
^590eaf1fec755 Kaixu Xia 2021-03-16 58 if (!xgmac_regs->ioaddr)
^590eaf1fec755 Kaixu Xia 2021-03-16 59 return -ENOMEM;
^590eaf1fec755 Kaixu Xia 2021-03-16 60 }
^590eaf1fec755 Kaixu Xia 2021-03-16 61 if (!xpcs_regs->ioaddr) {
^590eaf1fec755 Kaixu Xia 2021-03-16 62 xpcs_regs->ioaddr =
^590eaf1fec755 Kaixu Xia 2021-03-16 63 ioremap_nocache(xpcs_regs->addr, xpcs_regs->size);
^590eaf1fec755 Kaixu Xia 2021-03-16 64 if (!xpcs_regs->ioaddr)
^590eaf1fec755 Kaixu Xia 2021-03-16 65 return -ENOMEM;
^590eaf1fec755 Kaixu Xia 2021-03-16 66 }
^590eaf1fec755 Kaixu Xia 2021-03-16 67
^590eaf1fec755 Kaixu Xia 2021-03-16 68 /* reset the PHY through MDIO*/
^590eaf1fec755 Kaixu Xia 2021-03-16 @69 pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS, MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 70 pcs_value |= MDIO_CTRL1_RESET;
^590eaf1fec755 Kaixu Xia 2021-03-16 71 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_PCS, MDIO_CTRL1, pcs_value);
^590eaf1fec755 Kaixu Xia 2021-03-16 72
^590eaf1fec755 Kaixu Xia 2021-03-16 73 count = 50;
^590eaf1fec755 Kaixu Xia 2021-03-16 74 do {
^590eaf1fec755 Kaixu Xia 2021-03-16 75 msleep(20);
^590eaf1fec755 Kaixu Xia 2021-03-16 76 pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS,
^590eaf1fec755 Kaixu Xia 2021-03-16 77 MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 78 } while ((pcs_value & MDIO_CTRL1_RESET) && --count);
^590eaf1fec755 Kaixu Xia 2021-03-16 79
^590eaf1fec755 Kaixu Xia 2021-03-16 80 if (pcs_value & MDIO_CTRL1_RESET)
^590eaf1fec755 Kaixu Xia 2021-03-16 81 dev_warn(vdev->device, "%s: XGBE PHY reset timeout\n",
^590eaf1fec755 Kaixu Xia 2021-03-16 82 __func__);
^590eaf1fec755 Kaixu Xia 2021-03-16 83
^590eaf1fec755 Kaixu Xia 2021-03-16 84 /* disable auto-negotiation */
^590eaf1fec755 Kaixu Xia 2021-03-16 85 value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 86 value &= ~MDIO_AN_CTRL1_ENABLE;
^590eaf1fec755 Kaixu Xia 2021-03-16 87 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1, value);
^590eaf1fec755 Kaixu Xia 2021-03-16 88
^590eaf1fec755 Kaixu Xia 2021-03-16 89 /* disable AN IRQ */
^590eaf1fec755 Kaixu Xia 2021-03-16 90 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
^590eaf1fec755 Kaixu Xia 2021-03-16 91
^590eaf1fec755 Kaixu Xia 2021-03-16 92 /* clear AN IRQ */
^590eaf1fec755 Kaixu Xia 2021-03-16 93 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_AN_INT, 0);
^590eaf1fec755 Kaixu Xia 2021-03-16 94
^590eaf1fec755 Kaixu Xia 2021-03-16 95 /* MAC software reset */
^590eaf1fec755 Kaixu Xia 2021-03-16 96 dma_mr_value = ioread32(xgmac_regs->ioaddr + DMA_MR);
^590eaf1fec755 Kaixu Xia 2021-03-16 97 dma_mr_value |= 0x1;
^590eaf1fec755 Kaixu Xia 2021-03-16 98 iowrite32(dma_mr_value, xgmac_regs->ioaddr + DMA_MR);
^590eaf1fec755 Kaixu Xia 2021-03-16 99
^590eaf1fec755 Kaixu Xia 2021-03-16 100 usleep_range(10, 15);
^590eaf1fec755 Kaixu Xia 2021-03-16 101
^590eaf1fec755 Kaixu Xia 2021-03-16 102 count = 2000;
^590eaf1fec755 Kaixu Xia 2021-03-16 103 while (--count && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
^590eaf1fec755 Kaixu Xia 2021-03-16 104 usleep_range(500, 600);
^590eaf1fec755 Kaixu Xia 2021-03-16 105
^590eaf1fec755 Kaixu Xia 2021-03-16 106 if (!count)
^590eaf1fec755 Kaixu Xia 2021-03-16 107 dev_warn(vdev->device, "%s: MAC SW reset failed\n", __func__);
^590eaf1fec755 Kaixu Xia 2021-03-16 108
^590eaf1fec755 Kaixu Xia 2021-03-16 109 return 0;
^590eaf1fec755 Kaixu Xia 2021-03-16 110 }
^590eaf1fec755 Kaixu Xia 2021-03-16 111
:::::: The code at line 33 was first introduced by commit
:::::: 590eaf1fec755215547690e787cc7d83f58ea948 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.
:::::: TO: Kaixu Xia <kaixuxia@tencent.com>
:::::: CC: Kaixu Xia <kaixuxia@tencent.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread* drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: sparse: incorrect type in argument 2 (different address spaces)
@ 2024-03-03 19:41 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-03-03 19:41 UTC (permalink / raw)
To: jasperwang, kaixuxia, frankjpliu, kasong, sagazchen, kernelxing,
aurelianliu, jason.zeng, wu.zheng, yingbao.jia, pei.p.jia
Cc: oe-kbuild-all
Hi Jason,
First bad commit (maybe != root cause):
tree: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git linux-5.4/lts/5.4.119-20.0009
head: 3bf5c3f6e32e9cfe13f09bac3ae93b8e39d472c1
commit: c29a8fe73857e9fa29d3d4bc9897fb7f126a7af2 vfio: IOMMU_API should be selected
date: 2 years, 11 months ago
config: arm64-randconfig-r131-20240303 (https://download.01.org/0day-ci/archive/20240304/202403040325.RRbzn2ux-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240304/202403040325.RRbzn2ux-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403040325.RRbzn2ux-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: sparse: got void *
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: sparse: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: sparse: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got void * @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: sparse: got void *
>> drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: sparse: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ioaddr @@ got void [noderef] <asn:2> *ioaddr @@
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: sparse: got void [noderef] <asn:2> *ioaddr
vim +33 drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
^590eaf1fec755 Kaixu Xia 2021-03-16 26
^590eaf1fec755 Kaixu Xia 2021-03-16 27 static unsigned int xmdio_read(void *ioaddr, unsigned int mmd,
^590eaf1fec755 Kaixu Xia 2021-03-16 28 unsigned int reg)
^590eaf1fec755 Kaixu Xia 2021-03-16 29 {
^590eaf1fec755 Kaixu Xia 2021-03-16 30 unsigned int mmd_address, value;
^590eaf1fec755 Kaixu Xia 2021-03-16 31
^590eaf1fec755 Kaixu Xia 2021-03-16 32 mmd_address = (mmd << 16) | ((reg) & 0xffff);
^590eaf1fec755 Kaixu Xia 2021-03-16 @33 iowrite32(mmd_address >> 8, ioaddr + (PCS_MMD_SELECT << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 @34 value = ioread32(ioaddr + ((mmd_address & 0xff) << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 35 return value;
^590eaf1fec755 Kaixu Xia 2021-03-16 36 }
^590eaf1fec755 Kaixu Xia 2021-03-16 37
^590eaf1fec755 Kaixu Xia 2021-03-16 38 static void xmdio_write(void *ioaddr, unsigned int mmd,
^590eaf1fec755 Kaixu Xia 2021-03-16 39 unsigned int reg, unsigned int value)
^590eaf1fec755 Kaixu Xia 2021-03-16 40 {
^590eaf1fec755 Kaixu Xia 2021-03-16 41 unsigned int mmd_address;
^590eaf1fec755 Kaixu Xia 2021-03-16 42
^590eaf1fec755 Kaixu Xia 2021-03-16 43 mmd_address = (mmd << 16) | ((reg) & 0xffff);
^590eaf1fec755 Kaixu Xia 2021-03-16 44 iowrite32(mmd_address >> 8, ioaddr + (PCS_MMD_SELECT << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 45 iowrite32(value, ioaddr + ((mmd_address & 0xff) << 2));
^590eaf1fec755 Kaixu Xia 2021-03-16 46 }
^590eaf1fec755 Kaixu Xia 2021-03-16 47
^590eaf1fec755 Kaixu Xia 2021-03-16 48 static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
^590eaf1fec755 Kaixu Xia 2021-03-16 49 {
^590eaf1fec755 Kaixu Xia 2021-03-16 50 struct vfio_platform_region *xgmac_regs = &vdev->regions[0];
^590eaf1fec755 Kaixu Xia 2021-03-16 51 struct vfio_platform_region *xpcs_regs = &vdev->regions[1];
^590eaf1fec755 Kaixu Xia 2021-03-16 52 u32 dma_mr_value, pcs_value, value;
^590eaf1fec755 Kaixu Xia 2021-03-16 53 unsigned int count;
^590eaf1fec755 Kaixu Xia 2021-03-16 54
^590eaf1fec755 Kaixu Xia 2021-03-16 55 if (!xgmac_regs->ioaddr) {
^590eaf1fec755 Kaixu Xia 2021-03-16 56 xgmac_regs->ioaddr =
^590eaf1fec755 Kaixu Xia 2021-03-16 57 ioremap_nocache(xgmac_regs->addr, xgmac_regs->size);
^590eaf1fec755 Kaixu Xia 2021-03-16 58 if (!xgmac_regs->ioaddr)
^590eaf1fec755 Kaixu Xia 2021-03-16 59 return -ENOMEM;
^590eaf1fec755 Kaixu Xia 2021-03-16 60 }
^590eaf1fec755 Kaixu Xia 2021-03-16 61 if (!xpcs_regs->ioaddr) {
^590eaf1fec755 Kaixu Xia 2021-03-16 62 xpcs_regs->ioaddr =
^590eaf1fec755 Kaixu Xia 2021-03-16 63 ioremap_nocache(xpcs_regs->addr, xpcs_regs->size);
^590eaf1fec755 Kaixu Xia 2021-03-16 64 if (!xpcs_regs->ioaddr)
^590eaf1fec755 Kaixu Xia 2021-03-16 65 return -ENOMEM;
^590eaf1fec755 Kaixu Xia 2021-03-16 66 }
^590eaf1fec755 Kaixu Xia 2021-03-16 67
^590eaf1fec755 Kaixu Xia 2021-03-16 68 /* reset the PHY through MDIO*/
^590eaf1fec755 Kaixu Xia 2021-03-16 @69 pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS, MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 70 pcs_value |= MDIO_CTRL1_RESET;
^590eaf1fec755 Kaixu Xia 2021-03-16 71 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_PCS, MDIO_CTRL1, pcs_value);
^590eaf1fec755 Kaixu Xia 2021-03-16 72
^590eaf1fec755 Kaixu Xia 2021-03-16 73 count = 50;
^590eaf1fec755 Kaixu Xia 2021-03-16 74 do {
^590eaf1fec755 Kaixu Xia 2021-03-16 75 msleep(20);
^590eaf1fec755 Kaixu Xia 2021-03-16 76 pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS,
^590eaf1fec755 Kaixu Xia 2021-03-16 77 MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 78 } while ((pcs_value & MDIO_CTRL1_RESET) && --count);
^590eaf1fec755 Kaixu Xia 2021-03-16 79
^590eaf1fec755 Kaixu Xia 2021-03-16 80 if (pcs_value & MDIO_CTRL1_RESET)
^590eaf1fec755 Kaixu Xia 2021-03-16 81 dev_warn(vdev->device, "%s: XGBE PHY reset timeout\n",
^590eaf1fec755 Kaixu Xia 2021-03-16 82 __func__);
^590eaf1fec755 Kaixu Xia 2021-03-16 83
^590eaf1fec755 Kaixu Xia 2021-03-16 84 /* disable auto-negotiation */
^590eaf1fec755 Kaixu Xia 2021-03-16 85 value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1);
^590eaf1fec755 Kaixu Xia 2021-03-16 86 value &= ~MDIO_AN_CTRL1_ENABLE;
^590eaf1fec755 Kaixu Xia 2021-03-16 87 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1, value);
^590eaf1fec755 Kaixu Xia 2021-03-16 88
^590eaf1fec755 Kaixu Xia 2021-03-16 89 /* disable AN IRQ */
^590eaf1fec755 Kaixu Xia 2021-03-16 90 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
^590eaf1fec755 Kaixu Xia 2021-03-16 91
^590eaf1fec755 Kaixu Xia 2021-03-16 92 /* clear AN IRQ */
^590eaf1fec755 Kaixu Xia 2021-03-16 93 xmdio_write(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_AN_INT, 0);
^590eaf1fec755 Kaixu Xia 2021-03-16 94
^590eaf1fec755 Kaixu Xia 2021-03-16 95 /* MAC software reset */
^590eaf1fec755 Kaixu Xia 2021-03-16 96 dma_mr_value = ioread32(xgmac_regs->ioaddr + DMA_MR);
^590eaf1fec755 Kaixu Xia 2021-03-16 97 dma_mr_value |= 0x1;
^590eaf1fec755 Kaixu Xia 2021-03-16 98 iowrite32(dma_mr_value, xgmac_regs->ioaddr + DMA_MR);
^590eaf1fec755 Kaixu Xia 2021-03-16 99
^590eaf1fec755 Kaixu Xia 2021-03-16 100 usleep_range(10, 15);
^590eaf1fec755 Kaixu Xia 2021-03-16 101
^590eaf1fec755 Kaixu Xia 2021-03-16 102 count = 2000;
^590eaf1fec755 Kaixu Xia 2021-03-16 103 while (--count && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
^590eaf1fec755 Kaixu Xia 2021-03-16 104 usleep_range(500, 600);
^590eaf1fec755 Kaixu Xia 2021-03-16 105
^590eaf1fec755 Kaixu Xia 2021-03-16 106 if (!count)
^590eaf1fec755 Kaixu Xia 2021-03-16 107 dev_warn(vdev->device, "%s: MAC SW reset failed\n", __func__);
^590eaf1fec755 Kaixu Xia 2021-03-16 108
^590eaf1fec755 Kaixu Xia 2021-03-16 109 return 0;
^590eaf1fec755 Kaixu Xia 2021-03-16 110 }
^590eaf1fec755 Kaixu Xia 2021-03-16 111
:::::: The code at line 33 was first introduced by commit
:::::: 590eaf1fec755215547690e787cc7d83f58ea948 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.
:::::: TO: Kaixu Xia <kaixuxia@tencent.com>
:::::: CC: Kaixu Xia <kaixuxia@tencent.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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