diff options
Diffstat (limited to 'drivers/gpu/drm/panthor/panthor_hw.c')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_hw.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_hw.c b/drivers/gpu/drm/panthor/panthor_hw.c new file mode 100644 index 000000000000..87ebb7ae42c4 --- /dev/null +++ b/drivers/gpu/drm/panthor/panthor_hw.c @@ -0,0 +1,224 @@ +// SPDX-License-Identifier: GPL-2.0 or MIT +/* Copyright 2025 ARM Limited. All rights reserved. */ + +#include <drm/drm_print.h> + +#include "panthor_device.h" +#include "panthor_gpu.h" +#include "panthor_hw.h" +#include "panthor_pwr.h" +#include "panthor_regs.h" + +#define GPU_PROD_ID_MAKE(arch_major, prod_major) \ + (((arch_major) << 24) | (prod_major)) + +/** struct panthor_hw_entry - HW arch major to panthor_hw binding entry */ +struct panthor_hw_entry { + /** @arch_min: Minimum supported architecture major value (inclusive) */ + u8 arch_min; + + /** @arch_max: Maximum supported architecture major value (inclusive) */ + u8 arch_max; + + /** @hwdev: Pointer to panthor_hw structure */ + struct panthor_hw *hwdev; +}; + +static struct panthor_hw panthor_hw_arch_v10 = { + .ops = { + .soft_reset = panthor_gpu_soft_reset, + .l2_power_off = panthor_gpu_l2_power_off, + .l2_power_on = panthor_gpu_l2_power_on, + }, +}; + +static struct panthor_hw panthor_hw_arch_v14 = { + .ops = { + .soft_reset = panthor_pwr_reset_soft, + .l2_power_off = panthor_pwr_l2_power_off, + .l2_power_on = panthor_pwr_l2_power_on, + }, +}; + +static struct panthor_hw_entry panthor_hw_match[] = { + { + .arch_min = 10, + .arch_max = 13, + .hwdev = &panthor_hw_arch_v10, + }, + { + .arch_min = 14, + .arch_max = 14, + .hwdev = &panthor_hw_arch_v14, + }, +}; + +static char *get_gpu_model_name(struct panthor_device *ptdev) +{ + const u32 gpu_id = ptdev->gpu_info.gpu_id; + const u32 product_id = GPU_PROD_ID_MAKE(GPU_ARCH_MAJOR(gpu_id), + GPU_PROD_MAJOR(gpu_id)); + const bool ray_intersection = !!(ptdev->gpu_info.gpu_features & + GPU_FEATURES_RAY_INTERSECTION); + const u8 shader_core_count = hweight64(ptdev->gpu_info.shader_present); + + switch (product_id) { + case GPU_PROD_ID_MAKE(10, 2): + return "Mali-G710"; + case GPU_PROD_ID_MAKE(10, 3): + return "Mali-G510"; + case GPU_PROD_ID_MAKE(10, 4): + return "Mali-G310"; + case GPU_PROD_ID_MAKE(10, 7): + return "Mali-G610"; + case GPU_PROD_ID_MAKE(11, 2): + if (shader_core_count > 10 && ray_intersection) + return "Mali-G715-Immortalis"; + else if (shader_core_count >= 7) + return "Mali-G715"; + + fallthrough; + case GPU_PROD_ID_MAKE(11, 3): + return "Mali-G615"; + case GPU_PROD_ID_MAKE(12, 0): + if (shader_core_count >= 10 && ray_intersection) + return "Mali-G720-Immortalis"; + else if (shader_core_count >= 6) + return "Mali-G720"; + + fallthrough; + case GPU_PROD_ID_MAKE(12, 1): + return "Mali-G620"; + case GPU_PROD_ID_MAKE(13, 0): + if (shader_core_count >= 10 && ray_intersection) + return "Mali-G925-Immortalis"; + else if (shader_core_count >= 6) + return "Mali-G725"; + + fallthrough; + case GPU_PROD_ID_MAKE(13, 1): + return "Mali-G625"; + case GPU_PROD_ID_MAKE(14, 0): + return "Mali-G1-Ultra"; + case GPU_PROD_ID_MAKE(14, 1): + return "Mali-G1-Premium"; + case GPU_PROD_ID_MAKE(14, 3): + return "Mali-G1-Pro"; + } + + return "(Unknown Mali GPU)"; +} + +static void panthor_gpu_info_init(struct panthor_device *ptdev) +{ + unsigned int i; + + ptdev->gpu_info.csf_id = gpu_read(ptdev, GPU_CSF_ID); + ptdev->gpu_info.gpu_rev = gpu_read(ptdev, GPU_REVID); + ptdev->gpu_info.core_features = gpu_read(ptdev, GPU_CORE_FEATURES); + ptdev->gpu_info.l2_features = gpu_read(ptdev, GPU_L2_FEATURES); + ptdev->gpu_info.tiler_features = gpu_read(ptdev, GPU_TILER_FEATURES); + ptdev->gpu_info.mem_features = gpu_read(ptdev, GPU_MEM_FEATURES); + ptdev->gpu_info.mmu_features = gpu_read(ptdev, GPU_MMU_FEATURES); + ptdev->gpu_info.thread_features = gpu_read(ptdev, GPU_THREAD_FEATURES); + ptdev->gpu_info.max_threads = gpu_read(ptdev, GPU_THREAD_MAX_THREADS); + ptdev->gpu_info.thread_max_workgroup_size = gpu_read(ptdev, GPU_THREAD_MAX_WORKGROUP_SIZE); + ptdev->gpu_info.thread_max_barrier_size = gpu_read(ptdev, GPU_THREAD_MAX_BARRIER_SIZE); + ptdev->gpu_info.coherency_features = gpu_read(ptdev, GPU_COHERENCY_FEATURES); + for (i = 0; i < 4; i++) + ptdev->gpu_info.texture_features[i] = gpu_read(ptdev, GPU_TEXTURE_FEATURES(i)); + + ptdev->gpu_info.as_present = gpu_read(ptdev, GPU_AS_PRESENT); + + /* Introduced in arch 11.x */ + ptdev->gpu_info.gpu_features = gpu_read64(ptdev, GPU_FEATURES); + + if (panthor_hw_has_pwr_ctrl(ptdev)) { + /* Introduced in arch 14.x */ + ptdev->gpu_info.l2_present = gpu_read64(ptdev, PWR_L2_PRESENT); + ptdev->gpu_info.tiler_present = gpu_read64(ptdev, PWR_TILER_PRESENT); + ptdev->gpu_info.shader_present = gpu_read64(ptdev, PWR_SHADER_PRESENT); + } else { + ptdev->gpu_info.shader_present = gpu_read64(ptdev, GPU_SHADER_PRESENT); + ptdev->gpu_info.tiler_present = gpu_read64(ptdev, GPU_TILER_PRESENT); + ptdev->gpu_info.l2_present = gpu_read64(ptdev, GPU_L2_PRESENT); + } +} + +static void panthor_hw_info_init(struct panthor_device *ptdev) +{ + u32 major, minor, status; + + panthor_gpu_info_init(ptdev); + + major = GPU_VER_MAJOR(ptdev->gpu_info.gpu_id); + minor = GPU_VER_MINOR(ptdev->gpu_info.gpu_id); + status = GPU_VER_STATUS(ptdev->gpu_info.gpu_id); + + drm_info(&ptdev->base, + "%s id 0x%x major 0x%x minor 0x%x status 0x%x", + get_gpu_model_name(ptdev), ptdev->gpu_info.gpu_id >> 16, + major, minor, status); + + drm_info(&ptdev->base, + "Features: L2:%#x Tiler:%#x Mem:%#x MMU:%#x AS:%#x", + ptdev->gpu_info.l2_features, + ptdev->gpu_info.tiler_features, + ptdev->gpu_info.mem_features, + ptdev->gpu_info.mmu_features, + ptdev->gpu_info.as_present); + + drm_info(&ptdev->base, + "shader_present=0x%0llx l2_present=0x%0llx tiler_present=0x%0llx", + ptdev->gpu_info.shader_present, ptdev->gpu_info.l2_present, + ptdev->gpu_info.tiler_present); +} + +static int panthor_hw_bind_device(struct panthor_device *ptdev) +{ + struct panthor_hw *hdev = NULL; + const u32 arch_major = GPU_ARCH_MAJOR(ptdev->gpu_info.gpu_id); + int i = 0; + + for (i = 0; i < ARRAY_SIZE(panthor_hw_match); i++) { + struct panthor_hw_entry *entry = &panthor_hw_match[i]; + + if (arch_major >= entry->arch_min && arch_major <= entry->arch_max) { + hdev = entry->hwdev; + break; + } + } + + if (!hdev) + return -EOPNOTSUPP; + + ptdev->hw = hdev; + + return 0; +} + +static int panthor_hw_gpu_id_init(struct panthor_device *ptdev) +{ + ptdev->gpu_info.gpu_id = gpu_read(ptdev, GPU_ID); + if (!ptdev->gpu_info.gpu_id) + return -ENXIO; + + return 0; +} + +int panthor_hw_init(struct panthor_device *ptdev) +{ + int ret = 0; + + ret = panthor_hw_gpu_id_init(ptdev); + if (ret) + return ret; + + ret = panthor_hw_bind_device(ptdev); + if (ret) + return ret; + + panthor_hw_info_init(ptdev); + + return 0; +} |