| /* |
| * Copyright 2012-16 Advanced Micro Devices, Inc. |
| * Copyright 2019 Raptor Engineering, LLC |
| * |
| * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. |
| * |
| * Authors: AMD |
| * |
| */ |
| |
| #ifndef _OS_TYPES_H_ |
| #define _OS_TYPES_H_ |
| |
| #include <linux/kgdb.h> |
| #include <linux/kref.h> |
| #include <linux/types.h> |
| #include <linux/slab.h> |
| |
| #include <asm/byteorder.h> |
| |
| #include <drm/drm_print.h> |
| |
| #include "cgs_common.h" |
| |
| #if defined(__BIG_ENDIAN) && !defined(BIGENDIAN_CPU) |
| #define BIGENDIAN_CPU |
| #elif defined(__LITTLE_ENDIAN) && !defined(LITTLEENDIAN_CPU) |
| #define LITTLEENDIAN_CPU |
| #endif |
| |
| #undef FRAME_SIZE |
| |
| #define dm_output_to_console(fmt, ...) DRM_DEBUG_KMS(fmt, ##__VA_ARGS__) |
| |
| #define dm_error(fmt, ...) DRM_ERROR(fmt, ##__VA_ARGS__) |
| |
| #if defined(CONFIG_DRM_AMD_DC_DCN) |
| #if defined(CONFIG_X86) |
| #include <asm/fpu/api.h> |
| #define DC_FP_START() kernel_fpu_begin() |
| #define DC_FP_END() kernel_fpu_end() |
| #elif defined(CONFIG_ARM64) |
| #include <asm/neon.h> |
| #define DC_FP_START() kernel_neon_begin() |
| #define DC_FP_END() kernel_neon_end() |
| #elif defined(CONFIG_PPC64) |
| #include <asm/switch_to.h> |
| #include <asm/cputable.h> |
| #define DC_FP_START() { \ |
| if (cpu_has_feature(CPU_FTR_VSX_COMP)) { \ |
| preempt_disable(); \ |
| enable_kernel_vsx(); \ |
| } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { \ |
| preempt_disable(); \ |
| enable_kernel_altivec(); \ |
| } else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) { \ |
| preempt_disable(); \ |
| enable_kernel_fp(); \ |
| } \ |
| } |
| #define DC_FP_END() { \ |
| if (cpu_has_feature(CPU_FTR_VSX_COMP)) { \ |
| disable_kernel_vsx(); \ |
| preempt_enable(); \ |
| } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { \ |
| disable_kernel_altivec(); \ |
| preempt_enable(); \ |
| } else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) { \ |
| disable_kernel_fp(); \ |
| preempt_enable(); \ |
| } \ |
| } |
| #endif |
| #endif |
| |
| /* |
| * |
| * general debug capabilities |
| * |
| */ |
| #ifdef CONFIG_DEBUG_KERNEL_DC |
| #define dc_breakpoint() kgdb_breakpoint() |
| #else |
| #define dc_breakpoint() do {} while (0) |
| #endif |
| |
| #define ASSERT_CRITICAL(expr) do { \ |
| if (WARN_ON(!(expr))) \ |
| dc_breakpoint(); \ |
| } while (0) |
| |
| #define ASSERT(expr) do { \ |
| if (WARN_ON_ONCE(!(expr))) \ |
| dc_breakpoint(); \ |
| } while (0) |
| |
| #define BREAK_TO_DEBUGGER() \ |
| do { \ |
| DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__); \ |
| dc_breakpoint(); \ |
| } while (0) |
| |
| #define DC_ERR(...) do { \ |
| dm_error(__VA_ARGS__); \ |
| BREAK_TO_DEBUGGER(); \ |
| } while (0) |
| |
| #endif /* _OS_TYPES_H_ */ |