| /* |
| * Copyright © 2018 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #ifndef INTEL_GEM_H |
| #define INTEL_GEM_H |
| |
| #include <assert.h> |
| #include <time.h> |
| #include <errno.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <sys/ioctl.h> |
| |
| #include "intel_engine.h" |
| #include "drm-uapi/drm.h" |
| #include "util/macros.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define RCS_TIMESTAMP 0x2358 |
| |
| static inline uint64_t |
| intel_canonical_address(uint64_t v) |
| { |
| /* From the Broadwell PRM Vol. 2a, MI_LOAD_REGISTER_MEM::MemoryAddress: |
| * |
| * "This field specifies the address of the memory location where the |
| * register value specified in the DWord above will read from. The |
| * address specifies the DWord location of the data. Range = |
| * GraphicsVirtualAddress[63:2] for a DWord register GraphicsAddress |
| * [63:48] are ignored by the HW and assumed to be in correct |
| * canonical form [63:48] == [47]." |
| */ |
| const int shift = 63 - 47; |
| return (int64_t)(v << shift) >> shift; |
| } |
| |
| /** |
| * This returns a 48-bit address with the high 16 bits zeroed. |
| * |
| * It's the opposite of intel_canonicalize_address. |
| */ |
| static inline uint64_t |
| intel_48b_address(uint64_t v) |
| { |
| const int shift = 63 - 47; |
| return (uint64_t)(v << shift) >> shift; |
| } |
| |
| /** |
| * Call ioctl, restarting if it is interrupted |
| */ |
| static inline int |
| intel_ioctl(int fd, unsigned long request, void *arg) |
| { |
| int ret; |
| |
| do { |
| ret = ioctl(fd, request, arg); |
| } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); |
| return ret; |
| } |
| |
| bool intel_gem_supports_syncobj_wait(int fd); |
| |
| bool |
| intel_gem_read_render_timestamp(int fd, enum intel_kmd_type kmd_type, |
| uint64_t *value); |
| bool |
| intel_gem_read_correlate_cpu_gpu_timestamp(int fd, |
| enum intel_kmd_type kmd_type, |
| enum intel_engine_class engine_class, |
| uint16_t engine_instance, |
| clockid_t cpu_clock_id, |
| uint64_t *cpu_timestamp, |
| uint64_t *gpu_timestamp, |
| uint64_t *cpu_delta); |
| bool intel_gem_can_render_on_fd(int fd, enum intel_kmd_type kmd_type); |
| |
| /* Functions only used by i915 */ |
| enum intel_gem_create_context_flags { |
| INTEL_GEM_CREATE_CONTEXT_EXT_RECOVERABLE_FLAG = BITFIELD_BIT(0), |
| INTEL_GEM_CREATE_CONTEXT_EXT_PROTECTED_FLAG = BITFIELD_BIT(1), |
| INTEL_GEM_CREATE_CONTEXT_EXT_LOW_LATENCY_FLAG = BITFIELD_BIT(2), |
| }; |
| |
| bool intel_gem_create_context(int fd, uint32_t *context_id); |
| bool intel_gem_destroy_context(int fd, uint32_t context_id); |
| bool |
| intel_gem_create_context_engines(int fd, |
| enum intel_gem_create_context_flags flags, |
| const struct intel_query_engine_info *info, |
| int num_engines, enum intel_engine_class *engine_classes, |
| uint32_t vm_id, |
| uint32_t *context_id); |
| bool |
| intel_gem_set_context_param(int fd, uint32_t context, uint32_t param, |
| uint64_t value); |
| bool |
| intel_gem_get_context_param(int fd, uint32_t context, uint32_t param, |
| uint64_t *value); |
| bool intel_gem_get_param(int fd, uint32_t param, int *value); |
| bool intel_gem_wait_on_get_param(int fd, uint32_t param, int target_val, |
| uint32_t timeout_ms); |
| |
| bool intel_gem_create_context_ext(int fd, enum intel_gem_create_context_flags flags, |
| uint32_t *ctx_id); |
| bool intel_gem_supports_protected_context(int fd, |
| enum intel_kmd_type kmd_type); |
| |
| #define DRM_IOCTL_I915_LAST DRM_IO(DRM_COMMAND_END - 1) |
| |
| struct drm_intel_stub_devinfo { |
| uint64_t addr; |
| uint32_t size; |
| }; |
| |
| #define DRM_IOCTL_INTEL_STUB_DEVINFO DRM_IOR(DRM_IOCTL_I915_LAST, struct drm_intel_stub_devinfo) |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* INTEL_GEM_H */ |