/* * Copyright (C) 2013 Red Hat * Author: Rob Clark * * Copyright (c) 2014,2017 The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #ifndef __ADRENO_GPU_H__ #define __ADRENO_GPU_H__ #include #include "msm_gpu.h" #include "adreno_common.xml.h" #include "adreno_pm4.xml.h" #define REG_ADRENO_DEFINE(_offset, _reg) [_offset] = (_reg) + 1 #define REG_SKIP ~0 #define REG_ADRENO_SKIP(_offset) [_offset] = REG_SKIP /** * adreno_regs: List of registers that are used in across all * 3D devices. Each device type has different offset value for the same * register, so an array of register offsets are declared for every device * and are indexed by the enumeration values defined in this enum */ enum adreno_regs { REG_ADRENO_CP_RB_BASE, REG_ADRENO_CP_RB_BASE_HI, REG_ADRENO_CP_RB_RPTR_ADDR, REG_ADRENO_CP_RB_RPTR_ADDR_HI, REG_ADRENO_CP_RB_RPTR, REG_ADRENO_CP_RB_WPTR, REG_ADRENO_CP_RB_CNTL, REG_ADRENO_REGISTER_MAX, }; enum adreno_quirks { ADRENO_QUIRK_TWO_PASS_USE_WFI = 1, ADRENO_QUIRK_FAULT_DETECT_MASK = 2, }; struct adreno_rev { uint8_t core; uint8_t major; uint8_t minor; uint8_t patchid; }; #define ADRENO_REV(core, major, minor, patchid) \ ((struct adreno_rev){ core, major, minor, patchid }) struct adreno_gpu_funcs { struct msm_gpu_funcs base; int (*get_timestamp)(struct msm_gpu *gpu, uint64_t *value); }; struct adreno_info { struct adreno_rev rev; uint32_t revn; const char *name; const char *pm4fw, *pfpfw; const char *gpmufw; uint32_t gmem; enum adreno_quirks quirks; struct msm_gpu *(*init)(struct drm_device *dev); const char *zapfw; }; const struct adreno_info *adreno_info(struct adreno_rev rev); struct adreno_gpu { struct msm_gpu base; struct adreno_rev rev; const struct adreno_info *info; uint32_t gmem; /* actual gmem size */ uint32_t revn; /* numeric revision name */ const struct adreno_gpu_funcs *funcs; /* interesting register offsets to dump: */ const unsigned int *registers; /* * Are we loading fw from legacy path? Prior to addition * of gpu firmware to linux-firmware, the fw files were * placed in toplevel firmware directory, following qcom's * android kernel. But linux-firmware preferred they be * placed in a 'qcom' subdirectory. * * For backwards compatibility, we try first to load from * the new path, using request_firmware_direct() to avoid * any potential timeout waiting for usermode helper, then * fall back to the old path (with direct load). And * finally fall back to request_firmware() with the new * path to allow the usermode helper. */ enum { FW_LOCATION_UNKNOWN = 0, FW_LOCATION_NEW, /* /lib/firmware/qcom/$fwfile */ FW_LOCATION_LEGACY, /* /lib/firmware/$fwfile */ FW_LOCATION_HELPER, } fwloc; /* firmware: */ const struct firmware *pm4, *pfp; /* * Register offsets are different between some GPUs. * GPU specific offsets will be exported by GPU specific * code (a3xx_gpu.c) and stored in this common location. */ const unsigned int *reg_offsets; }; #define to_adreno_gpu(x) container_of(x, struct adreno_gpu, base) /* platform config data (ie. from DT, or pdata) */ struct adreno_platform_config { struct adreno_rev rev; uint32_t fast_rate; }; #define ADRENO_IDLE_TIMEOUT msecs_to_jiffies(1000) #define spin_until(X) ({ \ int __ret = -ETIMEDOUT; \ unsigned long __t = jiffies + ADRENO_IDLE_TIMEOUT; \ do { \ if (X) { \ __ret = 0; \ break; \ } \ } while (time_before(jiffies, __t)); \ __ret; \ }) static inline bool adreno_is_a3xx(struct adreno_gpu *gpu) { return (gpu->revn >= 300) && (gpu->revn < 400); } static inline bool adreno_is_a305(struct adreno_gpu *gpu) { return gpu->revn == 305; } static inline bool adreno_is_a306(struct adreno_gpu *gpu) { /* yes, 307, because a305c is 306 */ return gpu->revn == 307; } static inline bool adreno_is_a320(struct adreno_gpu *gpu) { return gpu->revn == 320; } static inline bool adreno_is_a330(struct adreno_gpu *gpu) { return gpu->revn == 330; } static inline bool adreno_is_a330v2(struct adreno_gpu *gpu) { return adreno_is_a330(gpu) && (gpu->rev.patchid > 0); } static inline bool adreno_is_a4xx(struct adreno_gpu *gpu) { return (gpu->revn >= 400) && (gpu->revn < 500); } static inline int adreno_is_a420(struct adreno_gpu *gpu) { return gpu->revn == 420; } static inline int adreno_is_a430(struct adreno_gpu *gpu) { return gpu->revn == 430; } static inline int adreno_is_a530(struct adreno_gpu *gpu) { return gpu->revn == 530; } int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value); const struct firmware *adreno_request_fw(struct adreno_gpu *adreno_gpu, const char *fwname); int adreno_hw_init(struct msm_gpu *gpu); void adreno_recover(struct msm_gpu *gpu); void adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, struct msm_file_private *ctx); void adreno_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring); bool adreno_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring); #ifdef CONFIG_DEBUG_FS void adreno_show(struct msm_gpu *gpu, struct seq_file *m); #endif void adreno_dump_info(struct msm_gpu *gpu); void adreno_dump(struct msm_gpu *gpu); void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords); struct msm_ringbuffer *adreno_active_ring(struct msm_gpu *gpu); int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, struct adreno_gpu *gpu, const struct adreno_gpu_funcs *funcs, int nr_rings); void adreno_gpu_cleanup(struct adreno_gpu *gpu); /* ringbuffer helpers (the parts that are adreno specific) */ static inline void OUT_PKT0(struct msm_ringbuffer *ring, uint16_t regindx, uint16_t cnt) { adreno_wait_ring(ring, cnt+1); OUT_RING(ring, CP_TYPE0_PKT | ((cnt-1) << 16) | (regindx & 0x7FFF)); } /* no-op packet: */ static inline void OUT_PKT2(struct msm_ringbuffer *ring) { adreno_wait_ring(ring, 1); OUT_RING(ring, CP_TYPE2_PKT); } static inline void OUT_PKT3(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt) { adreno_wait_ring(ring, cnt+1); OUT_RING(ring, CP_TYPE3_PKT | ((cnt-1) << 16) | ((opcode & 0xFF) << 8)); } static inline u32 PM4_PARITY(u32 val) { return (0x9669 >> (0xF & (val ^ (val >> 4) ^ (val >> 8) ^ (val >> 12) ^ (val >> 16) ^ ((val) >> 20) ^ (val >> 24) ^ (val >> 28)))) & 1; } /* Maximum number of values that can be executed for one opcode */ #define TYPE4_MAX_PAYLOAD 127 #define PKT4(_reg, _cnt) \ (CP_TYPE4_PKT | ((_cnt) << 0) | (PM4_PARITY((_cnt)) << 7) | \ (((_reg) & 0x3FFFF) << 8) | (PM4_PARITY((_reg)) << 27)) static inline void OUT_PKT4(struct msm_ringbuffer *ring, uint16_t regindx, uint16_t cnt) { adreno_wait_ring(ring, cnt + 1); OUT_RING(ring, PKT4(regindx, cnt)); } static inline void OUT_PKT7(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt) { adreno_wait_ring(ring, cnt + 1); OUT_RING(ring, CP_TYPE7_PKT | (cnt << 0) | (PM4_PARITY(cnt) << 15) | ((opcode & 0x7F) << 16) | (PM4_PARITY(opcode) << 23)); } /* * adreno_reg_check() - Checks the validity of a register enum * @gpu: Pointer to struct adreno_gpu * @offset_name: The register enum that is checked */ static inline bool adreno_reg_check(struct adreno_gpu *gpu, enum adreno_regs offset_name) { if (offset_name >= REG_ADRENO_REGISTER_MAX || !gpu->reg_offsets[offset_name]) { BUG(); } /* * REG_SKIP is a special value that tell us that the register in * question isn't implemented on target but don't trigger a BUG(). This * is used to cleanly implement adreno_gpu_write64() and * adreno_gpu_read64() in a generic fashion */ if (gpu->reg_offsets[offset_name] == REG_SKIP) return false; return true; } static inline u32 adreno_gpu_read(struct adreno_gpu *gpu, enum adreno_regs offset_name) { u32 reg = gpu->reg_offsets[offset_name]; u32 val = 0; if(adreno_reg_check(gpu,offset_name)) val = gpu_read(&gpu->base, reg - 1); return val; } static inline void adreno_gpu_write(struct adreno_gpu *gpu, enum adreno_regs offset_name, u32 data) { u32 reg = gpu->reg_offsets[offset_name]; if(adreno_reg_check(gpu, offset_name)) gpu_write(&gpu->base, reg - 1, data); } struct msm_gpu *a3xx_gpu_init(struct drm_device *dev); struct msm_gpu *a4xx_gpu_init(struct drm_device *dev); struct msm_gpu *a5xx_gpu_init(struct drm_device *dev); static inline void adreno_gpu_write64(struct adreno_gpu *gpu, enum adreno_regs lo, enum adreno_regs hi, u64 data) { adreno_gpu_write(gpu, lo, lower_32_bits(data)); adreno_gpu_write(gpu, hi, upper_32_bits(data)); } static inline uint32_t get_wptr(struct msm_ringbuffer *ring) { return (ring->cur - ring->start) % (MSM_GPU_RINGBUFFER_SZ >> 2); } /* * Given a register and a count, return a value to program into * REG_CP_PROTECT_REG(n) - this will block both reads and writes for _len * registers starting at _reg. * * The register base needs to be a multiple of the length. If it is not, the * hardware will quietly mask off the bits for you and shift the size. For * example, if you intend the protection to start at 0x07 for a length of 4 * (0x07-0x0A) the hardware will actually protect (0x04-0x07) which might * expose registers you intended to protect! */ #define ADRENO_PROTECT_RW(_reg, _len) \ ((1 << 30) | (1 << 29) | \ ((ilog2((_len)) & 0x1F) << 24) | (((_reg) << 2) & 0xFFFFF)) /* * Same as above, but allow reads over the range. For areas of mixed use (such * as performance counters) this allows us to protect a much larger range with a * single register */ #define ADRENO_PROTECT_RDONLY(_reg, _len) \ ((1 << 29) \ ((ilog2((_len)) & 0x1F) << 24) | (((_reg) << 2) & 0xFFFFF)) #endif /* __ADRENO_GPU_H__ */