diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 327 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/cgs_common.h | 563 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/cgs_linux.h | 135 |
5 files changed, 1036 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile index 908360584e4d..ccdbb3579bd8 100644 --- a/drivers/gpu/drm/amd/amdgpu/Makefile +++ b/drivers/gpu/drm/amd/amdgpu/Makefile @@ -77,6 +77,9 @@ amdgpu-y += \ amdgpu_amdkfd_gfx_v7.o \ amdgpu_amdkfd_gfx_v8.o +# add cgs +amdgpu-y += amdgpu_cgs.o + amdgpu-$(CONFIG_COMPAT) += amdgpu_ioc32.o amdgpu-$(CONFIG_VGA_SWITCHEROO) += amdgpu_atpx_handler.o amdgpu-$(CONFIG_ACPI) += amdgpu_acpi.o diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index baefa635169a..548e2bb72d99 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -42,6 +42,7 @@ #include <ttm/ttm_module.h> #include <ttm/ttm_execbuf_util.h> +#include <drm/drmP.h> #include <drm/drm_gem.h> #include <drm/amdgpu_drm.h> @@ -1862,6 +1863,13 @@ extern int amdgpu_ctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); /* + * CGS + */ +void *amdgpu_cgs_create_device(struct amdgpu_device *adev); +void amdgpu_cgs_destroy_device(void *cgs_device); + + +/* * Core structure, functions and helpers. */ typedef uint32_t (*amdgpu_rreg_t)(struct amdgpu_device*, uint32_t); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c new file mode 100644 index 000000000000..aea264a15d9b --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c @@ -0,0 +1,327 @@ +/* + * Copyright 2015 Advanced Micro Devices, Inc. + * + * 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. + * + * + */ +#include "amdgpu.h" +#include "cgs_linux.h" + +struct amdgpu_cgs_device { + struct cgs_device base; + struct amdgpu_device *adev; +}; + +#define CGS_FUNC_ADEV \ + struct amdgpu_device *adev = \ + ((struct amdgpu_cgs_device *)cgs_device)->adev + +static int amdgpu_cgs_gpu_mem_info(void *cgs_device, enum cgs_gpu_mem_type type, + uint64_t *mc_start, uint64_t *mc_size, + uint64_t *mem_size) +{ + return 0; +} + +static int amdgpu_cgs_gmap_kmem(void *cgs_device, void *kmem, + uint64_t size, + uint64_t min_offset, uint64_t max_offset, + cgs_handle_t *kmem_handle, uint64_t *mcaddr) +{ + return 0; +} + +static int amdgpu_cgs_gunmap_kmem(void *cgs_device, cgs_handle_t kmem_handle) +{ + return 0; +} + +static int amdgpu_cgs_alloc_gpu_mem(void *cgs_device, + enum cgs_gpu_mem_type type, + uint64_t size, uint64_t align, + uint64_t min_offset, uint64_t max_offset, + cgs_handle_t *handle) +{ + return 0; +} + +static int amdgpu_cgs_import_gpu_mem(void *cgs_device, int dmabuf_fd, + cgs_handle_t *handle) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_free_gpu_mem(void *cgs_device, cgs_handle_t handle) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_gmap_gpu_mem(void *cgs_device, cgs_handle_t handle, + uint64_t *mcaddr) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_gunmap_gpu_mem(void *cgs_device, cgs_handle_t handle) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_kmap_gpu_mem(void *cgs_device, cgs_handle_t handle, + void **map) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_kunmap_gpu_mem(void *cgs_device, cgs_handle_t handle) +{ + /* TODO */ + return 0; +} + +static uint32_t amdgpu_cgs_read_register(void *cgs_device, unsigned offset) +{ + /* TODO */ + return 0; +} + +static void amdgpu_cgs_write_register(void *cgs_device, unsigned offset, + uint32_t value) +{ + /* TODO */ + return; +} + +static uint32_t amdgpu_cgs_read_ind_register(void *cgs_device, + enum cgs_ind_reg space, + unsigned index) +{ + /* TODO */ + return 0; +} + +static void amdgpu_cgs_write_ind_register(void *cgs_device, + enum cgs_ind_reg space, + unsigned index, uint32_t value) +{ + /* TODO */ + return; +} + +static uint8_t amdgpu_cgs_read_pci_config_byte(void *cgs_device, unsigned addr) +{ + /* TODO */ + return 0; +} + +static uint16_t amdgpu_cgs_read_pci_config_word(void *cgs_device, unsigned addr) +{ + /* TODO */ + return 0; +} + +static uint32_t amdgpu_cgs_read_pci_config_dword(void *cgs_device, + unsigned addr) +{ + /* TODO */ + return 0; +} + +static void amdgpu_cgs_write_pci_config_byte(void *cgs_device, unsigned addr, + uint8_t value) +{ + /* TODO */ + return; +} + +static void amdgpu_cgs_write_pci_config_word(void *cgs_device, unsigned addr, + uint16_t value) +{ + /* TODO */ + return; +} + +static void amdgpu_cgs_write_pci_config_dword(void *cgs_device, unsigned addr, + uint32_t value) +{ + /* TODO */ + return; +} + +static const void *amdgpu_cgs_atom_get_data_table(void *cgs_device, + unsigned table, uint16_t *size, + uint8_t *frev, uint8_t *crev) +{ + /* TODO */ + return NULL; +} + +static int amdgpu_cgs_atom_get_cmd_table_revs(void *cgs_device, unsigned table, + uint8_t *frev, uint8_t *crev) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_atom_exec_cmd_table(void *cgs_device, unsigned table, + void *args) +{ + /* TODO */ + return 0; +} + + +static int amdgpu_cgs_create_pm_request(void *cgs_device, cgs_handle_t *request) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_destroy_pm_request(void *cgs_device, cgs_handle_t request) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_set_pm_request(void *cgs_device, cgs_handle_t request, + int active) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_pm_request_clock(void *cgs_device, cgs_handle_t request, + enum cgs_clock clock, unsigned freq) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_pm_request_engine(void *cgs_device, cgs_handle_t request, + enum cgs_engine engine, int powered) +{ + /* TODO */ + return 0; +} + + + +static int amdgpu_cgs_pm_query_clock_limits(void *cgs_device, + enum cgs_clock clock, + struct cgs_clock_limits *limits) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_set_camera_voltages(void *cgs_device, uint32_t mask, + const uint32_t *voltages) +{ + DRM_ERROR("not implemented"); + return -EPERM; +} + +static int amdgpu_cgs_add_irq_source(void *cgs_device, unsigned src_id, + unsigned num_types, + cgs_irq_source_set_func_t set, + cgs_irq_handler_func_t handler, + void *private_data) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_irq_get(void *cgs_device, unsigned src_id, unsigned type) +{ + /* TODO */ + return 0; +} + +static int amdgpu_cgs_irq_put(void *cgs_device, unsigned src_id, unsigned type) +{ + /* TODO */ + return 0; +} + +static const struct cgs_ops amdgpu_cgs_ops = { + amdgpu_cgs_gpu_mem_info, + amdgpu_cgs_gmap_kmem, + amdgpu_cgs_gunmap_kmem, + amdgpu_cgs_alloc_gpu_mem, + amdgpu_cgs_free_gpu_mem, + amdgpu_cgs_gmap_gpu_mem, + amdgpu_cgs_gunmap_gpu_mem, + amdgpu_cgs_kmap_gpu_mem, + amdgpu_cgs_kunmap_gpu_mem, + amdgpu_cgs_read_register, + amdgpu_cgs_write_register, + amdgpu_cgs_read_ind_register, + amdgpu_cgs_write_ind_register, + amdgpu_cgs_read_pci_config_byte, + amdgpu_cgs_read_pci_config_word, + amdgpu_cgs_read_pci_config_dword, + amdgpu_cgs_write_pci_config_byte, + amdgpu_cgs_write_pci_config_word, + amdgpu_cgs_write_pci_config_dword, + amdgpu_cgs_atom_get_data_table, + amdgpu_cgs_atom_get_cmd_table_revs, + amdgpu_cgs_atom_exec_cmd_table, + amdgpu_cgs_create_pm_request, + amdgpu_cgs_destroy_pm_request, + amdgpu_cgs_set_pm_request, + amdgpu_cgs_pm_request_clock, + amdgpu_cgs_pm_request_engine, + amdgpu_cgs_pm_query_clock_limits, + amdgpu_cgs_set_camera_voltages +}; + +static const struct cgs_os_ops amdgpu_cgs_os_ops = { + amdgpu_cgs_import_gpu_mem, + amdgpu_cgs_add_irq_source, + amdgpu_cgs_irq_get, + amdgpu_cgs_irq_put +}; + +void *amdgpu_cgs_create_device(struct amdgpu_device *adev) +{ + struct amdgpu_cgs_device *cgs_device = + kmalloc(sizeof(*cgs_device), GFP_KERNEL); + + if (!cgs_device) { + DRM_ERROR("Couldn't allocate CGS device structure\n"); + return NULL; + } + + cgs_device->base.ops = &amdgpu_cgs_ops; + cgs_device->base.os_ops = &amdgpu_cgs_os_ops; + cgs_device->adev = adev; + + return cgs_device; +} + +void amdgpu_cgs_destroy_device(void *cgs_device) +{ + kfree(cgs_device); +} diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h new file mode 100644 index 000000000000..f8cdb8875d89 --- /dev/null +++ b/drivers/gpu/drm/amd/include/cgs_common.h @@ -0,0 +1,563 @@ +/* + * Copyright 2015 Advanced Micro Devices, Inc. + * + * 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. + * + * + */ +#ifndef _CGS_COMMON_H +#define _CGS_COMMON_H + +/** + * enum cgs_gpu_mem_type - GPU memory types + */ +enum cgs_gpu_mem_type { + CGS_GPU_MEM_TYPE__VISIBLE_FB, + CGS_GPU_MEM_TYPE__INVISIBLE_FB, + CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB, + CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB, + CGS_GPU_MEM_TYPE__GART_CACHEABLE, + CGS_GPU_MEM_TYPE__GART_WRITECOMBINE +}; + +/** + * enum cgs_ind_reg - Indirect register spaces + */ +enum cgs_ind_reg { + CGS_IND_REG__MMIO, + CGS_IND_REG__PCIE, + CGS_IND_REG__SMC, + CGS_IND_REG__UVD_CTX, + CGS_IND_REG__DIDT, + CGS_IND_REG__AUDIO_ENDPT +}; + +/** + * enum cgs_clock - Clocks controlled by the SMU + */ +enum cgs_clock { + CGS_CLOCK__SCLK, + CGS_CLOCK__MCLK, + CGS_CLOCK__VCLK, + CGS_CLOCK__DCLK, + CGS_CLOCK__ECLK, + CGS_CLOCK__ACLK, + CGS_CLOCK__ICLK, + /* ... */ +}; + +/** + * enum cgs_engine - Engines that can be statically power-gated + */ +enum cgs_engine { + CGS_ENGINE__UVD, + CGS_ENGINE__VCE, + CGS_ENGINE__VP8, + CGS_ENGINE__ACP_DMA, + CGS_ENGINE__ACP_DSP0, + CGS_ENGINE__ACP_DSP1, + CGS_ENGINE__ISP, + /* ... */ +}; + +/** + * enum cgs_voltage_planes - Voltage planes for external camera HW + */ +enum cgs_voltage_planes { + CGS_VOLTAGE_PLANE__SENSOR0, + CGS_VOLTAGE_PLANE__SENSOR1, + /* ... */ +}; + +/** + * struct cgs_clock_limits - Clock limits + * + * Clocks are specified in 10KHz units. + */ +struct cgs_clock_limits { + unsigned min; /**< Minimum supported frequency */ + unsigned max; /**< Maxumim supported frequency */ + unsigned sustainable; /**< Thermally sustainable frequency */ +}; + +typedef unsigned long cgs_handle_t; + +/** + * cgs_gpu_mem_info() - Return information about memory heaps + * @cgs_device: opaque device handle + * @type: memory type + * @mc_start: Start MC address of the heap (output) + * @mc_size: MC address space size (output) + * @mem_size: maximum amount of memory available for allocation (output) + * + * This function returns information about memory heaps. The type + * parameter is used to select the memory heap. The mc_start and + * mc_size for GART heaps may be bigger than the memory available for + * allocation. + * + * mc_start and mc_size are undefined for non-contiguous FB memory + * types, since buffers allocated with these types may or may not be + * GART mapped. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_gpu_mem_info_t)(void *cgs_device, enum cgs_gpu_mem_type type, + uint64_t *mc_start, uint64_t *mc_size, + uint64_t *mem_size); + +/** + * cgs_gmap_kmem() - map kernel memory to GART aperture + * @cgs_device: opaque device handle + * @kmem: pointer to kernel memory + * @size: size to map + * @min_offset: minimum offset from start of GART aperture + * @max_offset: maximum offset from start of GART aperture + * @kmem_handle: kernel memory handle (output) + * @mcaddr: MC address (output) + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_gmap_kmem_t)(void *cgs_device, void *kmem, uint64_t size, + uint64_t min_offset, uint64_t max_offset, + cgs_handle_t *kmem_handle, uint64_t *mcaddr); + +/** + * cgs_gunmap_kmem() - unmap kernel memory + * @cgs_device: opaque device handle + * @kmem_handle: kernel memory handle returned by gmap_kmem + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_gunmap_kmem_t)(void *cgs_device, cgs_handle_t kmem_handle); + +/** + * cgs_alloc_gpu_mem() - Allocate GPU memory + * @cgs_device: opaque device handle + * @type: memory type + * @size: size in bytes + * @align: alignment in bytes + * @min_offset: minimum offset from start of heap + * @max_offset: maximum offset from start of heap + * @handle: memory handle (output) + * + * The memory types CGS_GPU_MEM_TYPE_*_CONTIG_FB force contiguous + * memory allocation. This guarantees that the MC address returned by + * cgs_gmap_gpu_mem is not mapped through the GART. The non-contiguous + * FB memory types may be GART mapped depending on memory + * fragmentation and memory allocator policies. + * + * If min/max_offset are non-0, the allocation will be forced to + * reside between these offsets in its respective memory heap. The + * base address that the offset relates to, depends on the memory + * type. + * + * - CGS_GPU_MEM_TYPE__*_CONTIG_FB: FB MC base address + * - CGS_GPU_MEM_TYPE__GART_*: GART aperture base address + * - others: undefined, don't use with max_offset + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_alloc_gpu_mem_t)(void *cgs_device, enum cgs_gpu_mem_type type, + uint64_t size, uint64_t align, + uint64_t min_offset, uint64_t max_offset, + cgs_handle_t *handle); + +/** + * cgs_free_gpu_mem() - Free GPU memory + * @cgs_device: opaque device handle + * @handle: memory handle returned by alloc or import + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_free_gpu_mem_t)(void *cgs_device, cgs_handle_t handle); + +/** + * cgs_gmap_gpu_mem() - GPU-map GPU memory + * @cgs_device: opaque device handle + * @handle: memory handle returned by alloc or import + * @mcaddr: MC address (output) + * + * Ensures that a buffer is GPU accessible and returns its MC address. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_gmap_gpu_mem_t)(void *cgs_device, cgs_handle_t handle, + uint64_t *mcaddr); + +/** + * cgs_gunmap_gpu_mem() - GPU-unmap GPU memory + * @cgs_device: opaque device handle + * @handle: memory handle returned by alloc or import + * + * Allows the buffer to be migrated while it's not used by the GPU. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_gunmap_gpu_mem_t)(void *cgs_device, cgs_handle_t handle); + +/** + * cgs_kmap_gpu_mem() - Kernel-map GPU memory + * + * @cgs_device: opaque device handle + * @handle: memory handle returned by alloc or import + * @map: Kernel virtual address the memory was mapped to (output) + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_kmap_gpu_mem_t)(void *cgs_device, cgs_handle_t handle, + void **map); + +/** + * cgs_kunmap_gpu_mem() - Kernel-unmap GPU memory + * @cgs_device: opaque device handle + * @handle: memory handle returned by alloc or import + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_kunmap_gpu_mem_t)(void *cgs_device, cgs_handle_t handle); + +/** + * cgs_read_register() - Read an MMIO register + * @cgs_device: opaque device handle + * @offset: register offset + * + * Return: register value + */ +typedef uint32_t (*cgs_read_register_t)(void *cgs_device, unsigned offset); + +/** + * cgs_write_register() - Write an MMIO register + * @cgs_device: opaque device handle + * @offset: register offset + * @value: register value + */ +typedef void (*cgs_write_register_t)(void *cgs_device, unsigned offset, + uint32_t value); + +/** + * cgs_read_ind_register() - Read an indirect register + * @cgs_device: opaque device handle + * @offset: register offset + * + * Return: register value + */ +typedef uint32_t (*cgs_read_ind_register_t)(void *cgs_device, enum cgs_ind_reg space, + unsigned index); + +/** + * cgs_write_ind_register() - Write an indirect register + * @cgs_device: opaque device handle + * @offset: register offset + * @value: register value + */ +typedef void (*cgs_write_ind_register_t)(void *cgs_device, enum cgs_ind_reg space, + unsigned index, uint32_t value); + +/** + * cgs_read_pci_config_byte() - Read byte from PCI configuration space + * @cgs_device: opaque device handle + * @addr: address + * + * Return: Value read + */ +typedef uint8_t (*cgs_read_pci_config_byte_t)(void *cgs_device, unsigned addr); + +/** + * cgs_read_pci_config_word() - Read word from PCI configuration space + * @cgs_device: opaque device handle + * @addr: address, must be word-aligned + * + * Return: Value read + */ +typedef uint16_t (*cgs_read_pci_config_word_t)(void *cgs_device, unsigned addr); + +/** + * cgs_read_pci_config_dword() - Read dword from PCI configuration space + * @cgs_device: opaque device handle + * @addr: address, must be dword-aligned + * + * Return: Value read + */ +typedef uint32_t (*cgs_read_pci_config_dword_t)(void *cgs_device, + unsigned addr); + +/** + * cgs_write_pci_config_byte() - Write byte to PCI configuration space + * @cgs_device: opaque device handle + * @addr: address + * @value: value to write + */ +typedef void (*cgs_write_pci_config_byte_t)(void *cgs_device, unsigned addr, + uint8_t value); + +/** + * cgs_write_pci_config_word() - Write byte to PCI configuration space + * @cgs_device: opaque device handle + * @addr: address, must be word-aligned + * @value: value to write + */ +typedef void (*cgs_write_pci_config_word_t)(void *cgs_device, unsigned addr, + uint16_t value); + +/** + * cgs_write_pci_config_dword() - Write byte to PCI configuration space + * @cgs_device: opaque device handle + * @addr: address, must be dword-aligned + * @value: value to write + */ +typedef void (*cgs_write_pci_config_dword_t)(void *cgs_device, unsigned addr, + uint32_t value); + +/** + * cgs_atom_get_data_table() - Get a pointer to an ATOM BIOS data table + * @cgs_device: opaque device handle + * @table: data table index + * @size: size of the table (output, may be NULL) + * @frev: table format revision (output, may be NULL) + * @crev: table content revision (output, may be NULL) + * + * Return: Pointer to start of the table, or NULL on failure + */ +typedef const void *(*cgs_atom_get_data_table_t)( + void *cgs_device, unsigned table, + uint16_t *size, uint8_t *frev, uint8_t *crev); + +/** + * cgs_atom_get_cmd_table_revs() - Get ATOM BIOS command table revisions + * @cgs_device: opaque device handle + * @table: data table index + * @frev: table format revision (output, may be NULL) + * @crev: table content revision (output, may be NULL) + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_atom_get_cmd_table_revs_t)(void *cgs_device, unsigned table, + uint8_t *frev, uint8_t *crev); + +/** + * cgs_atom_exec_cmd_table() - Execute an ATOM BIOS command table + * @cgs_device: opaque device handle + * @table: command table index + * @args: arguments + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_atom_exec_cmd_table_t)(void *cgs_device, + unsigned table, void *args); + +/** + * cgs_create_pm_request() - Create a power management request + * @cgs_device: opaque device handle + * @request: handle of created PM request (output) + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_create_pm_request_t)(void *cgs_device, cgs_handle_t *request); + +/** + * cgs_destroy_pm_request() - Destroy a power management request + * @cgs_device: opaque device handle + * @request: handle of created PM request + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_destroy_pm_request_t)(void *cgs_device, cgs_handle_t request); + +/** + * cgs_set_pm_request() - Activate or deactiveate a PM request + * @cgs_device: opaque device handle + * @request: PM request handle + * @active: 0 = deactivate, non-0 = activate + * + * While a PM request is active, its minimum clock requests are taken + * into account as the requested engines are powered up. When the + * request is inactive, the engines may be powered down and clocks may + * be lower, depending on other PM requests by other driver + * components. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_set_pm_request_t)(void *cgs_device, cgs_handle_t request, + int active); + +/** + * cgs_pm_request_clock() - Request a minimum frequency for a specific clock + * @cgs_device: opaque device handle + * @request: PM request handle + * @clock: which clock? + * @freq: requested min. frequency in 10KHz units (0 to clear request) + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_pm_request_clock_t)(void *cgs_device, cgs_handle_t request, + enum cgs_clock clock, unsigned freq); + +/** + * cgs_pm_request_engine() - Request an engine to be powered up + * @cgs_device: opaque device handle + * @request: PM request handle + * @engine: which engine? + * @powered: 0 = powered down, non-0 = powered up + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_pm_request_engine_t)(void *cgs_device, cgs_handle_t request, + enum cgs_engine engine, int powered); + +/** + * cgs_pm_query_clock_limits() - Query clock frequency limits + * @cgs_device: opaque device handle + * @clock: which clock? + * @limits: clock limits + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_pm_query_clock_limits_t)(void *cgs_device, + enum cgs_clock clock, + struct cgs_clock_limits *limits); + +/** + * cgs_set_camera_voltages() - Apply specific voltages to PMIC voltage planes + * @cgs_device: opaque device handle + * @mask: bitmask of voltages to change (1<<CGS_VOLTAGE_PLANE__xyz|...) + * @voltages: pointer to array of voltage values in 1mV units + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_set_camera_voltages_t)(void *cgs_device, uint32_t mask, + const uint32_t *voltages); + +struct cgs_ops { + /* memory management calls (similar to KFD interface) */ + cgs_gpu_mem_info_t gpu_mem_info; + cgs_gmap_kmem_t gmap_kmem; + cgs_gunmap_kmem_t gunmap_kmem; + cgs_alloc_gpu_mem_t alloc_gpu_mem; + cgs_free_gpu_mem_t free_gpu_mem; + cgs_gmap_gpu_mem_t gmap_gpu_mem; + cgs_gunmap_gpu_mem_t gunmap_gpu_mem; + cgs_kmap_gpu_mem_t kmap_gpu_mem; + cgs_kunmap_gpu_mem_t kunmap_gpu_mem; + /* MMIO access */ + cgs_read_register_t read_register; + cgs_write_register_t write_register; + cgs_read_ind_register_t read_ind_register; + cgs_write_ind_register_t write_ind_register; + /* PCI configuration space access */ + cgs_read_pci_config_byte_t read_pci_config_byte; + cgs_read_pci_config_word_t read_pci_config_word; + cgs_read_pci_config_dword_t read_pci_config_dword; + cgs_write_pci_config_byte_t write_pci_config_byte; + cgs_write_pci_config_word_t write_pci_config_word; + cgs_write_pci_config_dword_t write_pci_config_dword; + /* ATOM BIOS */ + cgs_atom_get_data_table_t atom_get_data_table; + cgs_atom_get_cmd_table_revs_t atom_get_cmd_table_revs; + cgs_atom_exec_cmd_table_t atom_exec_cmd_table; + /* Power management */ + cgs_create_pm_request_t create_pm_request; + cgs_destroy_pm_request_t destroy_pm_request; + cgs_set_pm_request_t set_pm_request; + cgs_pm_request_clock_t pm_request_clock; + cgs_pm_request_engine_t pm_request_engine; + cgs_pm_query_clock_limits_t pm_query_clock_limits; + cgs_set_camera_voltages_t set_camera_voltages; + /* ACPI (TODO) */ +}; + +struct cgs_os_ops; /* To be define in OS-specific CGS header */ + +struct cgs_device +{ + const struct cgs_ops *ops; + const struct cgs_os_ops *os_ops; + /* to be embedded at the start of driver private structure */ +}; + +/* Convenience macros that make CGS indirect function calls look like + * normal function calls */ +#define CGS_CALL(func,dev,...) \ + (((struct cgs_device *)dev)->ops->func(dev, ##__VA_ARGS__)) +#define CGS_OS_CALL(func,dev,...) \ + (((struct cgs_device *)dev)->os_ops->func(dev, ##__VA_ARGS__)) + +#define cgs_gpu_mem_info(dev,type,mc_start,mc_size,mem_size) \ + CGS_CALL(gpu_mem_info,dev,type,mc_start,mc_size,mem_size) +#define cgs_gmap_kmem(dev,kmem,size,min_off,max_off,kmem_handle,mcaddr) \ + CGS_CALL(gmap_kmem,dev,kmem,size,min_off,max_off,kmem_handle,mcaddr) +#define cgs_gummap_kmem(dev,kmem_handle) \ + CGS_CALL(gunmap_kmem,dev,keme_handle) +#define cgs_alloc_gpu_mem(dev,type,size,align,min_off,max_off,handle) \ + CGS_CALL(alloc_gpu_mem,dev,type,size,align,min_off,max_off,handle) +#define cgs_free_gpu_mem(dev,handle) \ + CGS_CALL(free_gpu_mem,dev,handle) +#define cgs_gmap_gpu_mem(dev,handle,mcaddr) \ + CGS_CALL(gmap_gpu_mem,dev,handle,mcaddr) +#define cgs_gummap_gpu_mem(dev,handle) \ + CGS_CALL(gunmap_gpu_mem,dev,handle) +#define cgs_kmap_gpu_mem(dev,handle,map) \ + CGS_CALL(kmap_gpu_mem,dev,handle,map) +#define cgs_kunmap_gpu_mem(dev,handle) \ + CGS_CALL(kunmap_gpu_mem,dev,handle) + +#define cgs_read_register(dev,offset) \ + CGS_CALL(read_register,dev,offset) +#define cgs_write_register(dev,offset,value) \ + CGS_CALL(write_register,dev,offset,value) +#define cgs_read_ind_register(dev,space,index) \ + CGS_CALL(read_ind_register,dev,space,index) +#define cgs_write_ind_register(dev,space,index,value) \ + CGS_CALL(write_ind_register,dev,space,index,value) + +#define cgs_read_pci_config_byte(dev,addr) \ + CGS_CALL(read_pci_config_byte,dev,addr) +#define cgs_read_pci_config_word(dev,addr) \ + CGS_CALL(read_pci_config_word,dev,addr) +#define cgs_read_pci_config_dword(dev,addr) \ + CGS_CALL(read_pci_config_dword,dev,addr) +#define cgs_write_pci_config_byte(dev,addr,value) \ + CGS_CALL(write_pci_config_byte,dev,addr,value) +#define cgs_write_pci_config_word(dev,addr,value) \ + CGS_CALL(write_pci_config_word,dev,addr,value) +#define cgs_write_pci_config_dword(dev,addr,value) \ + CGS_CALL(write_pci_config_dword,dev,addr,value) + +#define cgs_atom_get_data_table(dev,table,size,frev,crev) \ + CGS_CALL(atom_get_data_table,dev,table,size,frev,crev) +#define cgs_atom_get_cmd_table_revs(dev,table,frev,crev) \ + CGS_CALL(atom_get_cmd_table_revs,dev,table,frev,crev) +#define cgs_atom_exec_cmd_table(dev,table,args) \ + CGS_CALL(atom_exec_cmd_table,dev,table,args) + +#define cgs_create_pm_request(dev,request) \ + CGS_CALL(create_pm_request,dev,request) +#define cgs_destroy_pm_request(dev,request) \ + CGS_CALL(destroy_pm_request,dev,request) +#define cgs_set_pm_request(dev,request,active) \ + CGS_CALL(set_pm_request,dev,request,active) +#define cgs_pm_request_clock(dev,request,clock,freq) \ + CGS_CALL(pm_request_clock,dev,request,clock,freq) +#define cgs_pm_request_engine(dev,request,engine,powered) \ + CGS_CALL(pm_request_engine,dev,request,engine,powered) +#define cgs_pm_query_clock_limits(dev,clock,limits) \ + CGS_CALL(pm_query_clock_limits,dev,clock,limits) +#define cgs_set_camera_voltages(dev,mask,voltages) \ + CGS_CALL(set_camera_voltages,dev,mask,voltages) + +#endif /* _CGS_COMMON_H */ diff --git a/drivers/gpu/drm/amd/include/cgs_linux.h b/drivers/gpu/drm/amd/include/cgs_linux.h new file mode 100644 index 000000000000..488642f08267 --- /dev/null +++ b/drivers/gpu/drm/amd/include/cgs_linux.h @@ -0,0 +1,135 @@ +/* + * Copyright 2015 Advanced Micro Devices, Inc. + * + * 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. + * + * + */ +#ifndef _CGS_LINUX_H +#define _CGS_LINUX_H + +#include "cgs_common.h" + +/** + * cgs_import_gpu_mem() - Import dmabuf handle + * @cgs_device: opaque device handle + * @dmabuf_fd: DMABuf file descriptor + * @handle: memory handle (output) + * + * Must be called in the process context that dmabuf_fd belongs to. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_import_gpu_mem_t)(void *cgs_device, int dmabuf_fd, + cgs_handle_t *handle); + +/** + * cgs_irq_source_set_func() - Callback for enabling/disabling interrupt sources + * @private_data: private data provided to cgs_add_irq_source + * @src_id: interrupt source ID + * @type: interrupt type + * @enabled: 0 = disable source, non-0 = enable source + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_source_set_func_t)(void *private_data, + unsigned src_id, unsigned type, + int enabled); + +/** + * cgs_irq_handler_func() - Interrupt handler callback + * @private_data: private data provided to cgs_add_irq_source + * @src_id: interrupt source ID + * @iv_entry: pointer to raw ih ring entry + * + * This callback runs in interrupt context. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_handler_func_t)(void *private_data, + unsigned src_id, const uint32_t *iv_entry); + +/** + * cgs_add_irq_source() - Add an IRQ source + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @num_types: number of interrupt types that can be independently enabled + * @set: callback function to enable/disable an interrupt type + * @handler: interrupt handler callback + * @private_data: private data to pass to callback functions + * + * The same IRQ source can be added only once. Adding an IRQ source + * indicates ownership of that IRQ source and all its IRQ types. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_add_irq_source_t)(void *cgs_device, unsigned src_id, + unsigned num_types, + cgs_irq_source_set_func_t set, + cgs_irq_handler_func_t handler, + void *private_data); + +/** + * cgs_irq_get() - Request enabling an IRQ source and type + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @type: interrupt type + * + * cgs_irq_get and cgs_irq_put calls must be balanced. They count + * "references" to IRQ sources. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_get_t)(void *cgs_device, unsigned src_id, unsigned type); + +/** + * cgs_irq_put() - Indicate IRQ source is no longer needed + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @type: interrupt type + * + * cgs_irq_get and cgs_irq_put calls must be balanced. They count + * "references" to IRQ sources. Even after cgs_irq_put is called, the + * IRQ handler may still be called if there are more refecences to + * the IRQ source. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_put_t)(void *cgs_device, unsigned src_id, unsigned type); + +struct cgs_os_ops { + cgs_import_gpu_mem_t import_gpu_mem; + + /* IRQ handling */ + cgs_add_irq_source_t add_irq_source; + cgs_irq_get_t irq_get; + cgs_irq_put_t irq_put; +}; + +#define cgs_import_gpu_mem(dev,dmabuf_fd,handle) \ + CGS_OS_CALL(import_gpu_mem,dev,dmabuf_fd,handle) +#define cgs_add_irq_source(dev,src_id,num_types,set,handler,private_data) \ + CGS_OS_CALL(add_irq_source,dev,src_id,num_types,set,handler, \ + private_data) +#define cgs_irq_get(dev,src_id,type) \ + CGS_OS_CALL(irq_get,dev,src_id,type) +#define cgs_irq_put(dev,src_id,type) \ + CGS_OS_CALL(irq_put,dev,src_id,type) + +#endif /* _CGS_LINUX_H */ |