diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c | 77 |
1 files changed, 49 insertions, 28 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c index b291ee0fab94..dad83356e976 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c @@ -27,12 +27,21 @@ #include "gca/gfx_8_0_sh_mask.h" #include "oss/oss_3_0_sh_mask.h" +/* + * Low bits must be 0000/FFFF as required by HW, high bits must be 0 to + * stay in user mode. + */ +#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL +/* APE1 limit is inclusive and 64K aligned. */ +#define APE1_LIMIT_ALIGNMENT 0xFFFF + static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, struct qcm_process_device *qpd, enum cache_policy default_policy, enum cache_policy alternate_policy, void __user *alternate_aperture_base, - uint64_t alternate_aperture_size); + uint64_t alternate_aperture_size, + u32 misc_process_properties); static int update_qpd_vi(struct device_queue_manager *dqm, struct qcm_process_device *qpd); static void init_sdma_vm(struct device_queue_manager *dqm, @@ -81,10 +90,41 @@ static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, enum cache_policy default_policy, enum cache_policy alternate_policy, void __user *alternate_aperture_base, - uint64_t alternate_aperture_size) + uint64_t alternate_aperture_size, + u32 misc_process_properties) { uint32_t default_mtype; uint32_t ape1_mtype; + unsigned int temp; + bool retval = true; + + if (alternate_aperture_size == 0) { + /* base > limit disables APE1 */ + qpd->sh_mem_ape1_base = 1; + qpd->sh_mem_ape1_limit = 0; + } else { + /* + * In FSA64, APE1_Base[63:0] = { 16{SH_MEM_APE1_BASE[31]}, + * SH_MEM_APE1_BASE[31:0], 0x0000 } + * APE1_Limit[63:0] = { 16{SH_MEM_APE1_LIMIT[31]}, + * SH_MEM_APE1_LIMIT[31:0], 0xFFFF } + * Verify that the base and size parameters can be + * represented in this format and convert them. + * Additionally restrict APE1 to user-mode addresses. + */ + + uint64_t base = (uintptr_t)alternate_aperture_base; + uint64_t limit = base + alternate_aperture_size - 1; + + if (limit <= base || (base & APE1_FIXED_BITS_MASK) != 0 || + (limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT) { + retval = false; + goto out; + } + + qpd->sh_mem_ape1_base = base >> 16; + qpd->sh_mem_ape1_limit = limit >> 16; + } default_mtype = (default_policy == cache_policy_coherent) ? MTYPE_UC : @@ -100,40 +140,21 @@ static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT | ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT; - return true; -} - -static int update_qpd_vi(struct device_queue_manager *dqm, - struct qcm_process_device *qpd) -{ - struct kfd_process_device *pdd; - unsigned int temp; - - pdd = qpd_to_pdd(qpd); - - /* check if sh_mem_config register already configured */ - if (qpd->sh_mem_config == 0) { - qpd->sh_mem_config = - SH_MEM_ALIGNMENT_MODE_UNALIGNED << - SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT | - MTYPE_UC << - SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT | - MTYPE_UC << - SH_MEM_CONFIG__APE1_MTYPE__SHIFT; - - qpd->sh_mem_ape1_limit = 0; - qpd->sh_mem_ape1_base = 0; - } - /* On dGPU we're always in GPUVM64 addressing mode with 64-bit * aperture addresses. */ - temp = get_sh_mem_bases_nybble_64(pdd); + temp = get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd)); qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp); pr_debug("sh_mem_bases nybble: 0x%X and register 0x%X\n", temp, qpd->sh_mem_bases); +out: + return retval; +} +static int update_qpd_vi(struct device_queue_manager *dqm, + struct qcm_process_device *qpd) +{ return 0; } |