| pci.c (d7646f241c8efc17b4b86cc7a304472792f0cc74) | pci.c (67cc32ebfd8c0ee3fcdb26780a8991baf5eb1d45) |
|---|---|
| 1/* 2 * vfio based device assignment support 3 * 4 * Copyright Red Hat, Inc. 2012 5 * 6 * Authors: 7 * Alex Williamson <alex.williamson@redhat.com> 8 * --- 3363 unchanged lines hidden (view full) --- 3372 * config reset magic is relatively common on AMD GPUs, but the setup and SMC 3373 * poking is largely ASIC specific. 3374 */ 3375static bool vfio_radeon_smc_is_running(VFIOPCIDevice *vdev) 3376{ 3377 uint32_t clk, pc_c; 3378 3379 /* | 1/* 2 * vfio based device assignment support 3 * 4 * Copyright Red Hat, Inc. 2012 5 * 6 * Authors: 7 * Alex Williamson <alex.williamson@redhat.com> 8 * --- 3363 unchanged lines hidden (view full) --- 3372 * config reset magic is relatively common on AMD GPUs, but the setup and SMC 3373 * poking is largely ASIC specific. 3374 */ 3375static bool vfio_radeon_smc_is_running(VFIOPCIDevice *vdev) 3376{ 3377 uint32_t clk, pc_c; 3378 3379 /* |
| 3380 * Registers 200h and 204h are index and data registers for acessing | 3380 * Registers 200h and 204h are index and data registers for accessing |
| 3381 * indirect configuration registers within the device. 3382 */ 3383 vfio_region_write(&vdev->bars[5].region, 0x200, 0x80000004, 4); 3384 clk = vfio_region_read(&vdev->bars[5].region, 0x204, 4); 3385 vfio_region_write(&vdev->bars[5].region, 0x200, 0x80000370, 4); 3386 pc_c = vfio_region_read(&vdev->bars[5].region, 0x204, 4); 3387 3388 return (!(clk & 1) && (0x20100 <= pc_c)); --- 408 unchanged lines hidden --- | 3381 * indirect configuration registers within the device. 3382 */ 3383 vfio_region_write(&vdev->bars[5].region, 0x200, 0x80000004, 4); 3384 clk = vfio_region_read(&vdev->bars[5].region, 0x204, 4); 3385 vfio_region_write(&vdev->bars[5].region, 0x200, 0x80000370, 4); 3386 pc_c = vfio_region_read(&vdev->bars[5].region, 0x204, 4); 3387 3388 return (!(clk & 1) && (0x20100 <= pc_c)); --- 408 unchanged lines hidden --- |