--- /dev/null
+/*
+ * 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);
+}
--- /dev/null
+/*
+ * 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 */
--- /dev/null
+/*
+ * 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 */
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff