[linux-2.6-block.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_amdkfd.c

/*
 * Copyright 2014 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_amdkfd.h"
#include "amdgpu_family.h"
#include <drm/drmP.h>
#include "amdgpu.h"
#include <linux/module.h>

const struct kfd2kgd_calls *kfd2kgd;
const struct kgd2kfd_calls *kgd2kfd;
bool (*kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls**);

bool amdgpu_amdkfd_init(void)
{
#if defined(CONFIG_HSA_AMD_MODULE)
	bool (*kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls**);

	kgd2kfd_init_p = symbol_request(kgd2kfd_init);

	if (kgd2kfd_init_p == NULL)
		return false;
#endif
	return true;
}

bool amdgpu_amdkfd_load_interface(struct amdgpu_device *rdev)
{
#if defined(CONFIG_HSA_AMD_MODULE)
	bool (*kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls**);
#endif

	switch (rdev->asic_type) {
	case CHIP_KAVERI:
		kfd2kgd = amdgpu_amdkfd_gfx_7_get_functions();
		break;
	case CHIP_CARRIZO:
		kfd2kgd = amdgpu_amdkfd_gfx_8_0_get_functions();
		break;
	default:
		return false;
	}

#if defined(CONFIG_HSA_AMD_MODULE)
	kgd2kfd_init_p = symbol_request(kgd2kfd_init);

	if (kgd2kfd_init_p == NULL) {
		kfd2kgd = NULL;
		return false;
	}

	if (!kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kgd2kfd)) {
		symbol_put(kgd2kfd_init);
		kfd2kgd = NULL;
		kgd2kfd = NULL;

		return false;
	}

	return true;
#elif defined(CONFIG_HSA_AMD)
	if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kgd2kfd)) {
		kfd2kgd = NULL;
		kgd2kfd = NULL;
		return false;
	}

	return true;
#else
	kfd2kgd = NULL;
	return false;
#endif
}

void amdgpu_amdkfd_fini(void)
{
	if (kgd2kfd) {
		kgd2kfd->exit();
		symbol_put(kgd2kfd_init);
	}
}

void amdgpu_amdkfd_device_probe(struct amdgpu_device *rdev)
{
	if (kgd2kfd)
		rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev,
					rdev->pdev, kfd2kgd);
}

void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev)
{
	if (rdev->kfd) {
		struct kgd2kfd_shared_resources gpu_resources = {
			.compute_vmid_bitmap = 0xFF00,

			.first_compute_pipe = 1,
			.compute_pipe_count = 4 - 1,
		};

		amdgpu_doorbell_get_kfd_info(rdev,
				&gpu_resources.doorbell_physical_address,
				&gpu_resources.doorbell_aperture_size,
				&gpu_resources.doorbell_start_offset);

		kgd2kfd->device_init(rdev->kfd, &gpu_resources);
	}
}

void amdgpu_amdkfd_device_fini(struct amdgpu_device *rdev)
{
	if (rdev->kfd) {
		kgd2kfd->device_exit(rdev->kfd);
		rdev->kfd = NULL;
	}
}

void amdgpu_amdkfd_interrupt(struct amdgpu_device *rdev,
		const void *ih_ring_entry)
{
	if (rdev->kfd)
		kgd2kfd->interrupt(rdev->kfd, ih_ring_entry);
}

void amdgpu_amdkfd_suspend(struct amdgpu_device *rdev)
{
	if (rdev->kfd)
		kgd2kfd->suspend(rdev->kfd);
}

int amdgpu_amdkfd_resume(struct amdgpu_device *rdev)
{
	int r = 0;

	if (rdev->kfd)
		r = kgd2kfd->resume(rdev->kfd);

	return r;
}

u32 pool_to_domain(enum kgd_memory_pool p)
{
	switch (p) {
	case KGD_POOL_FRAMEBUFFER: return AMDGPU_GEM_DOMAIN_VRAM;
	default: return AMDGPU_GEM_DOMAIN_GTT;
	}
}

int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
			void **mem_obj, uint64_t *gpu_addr,
			void **cpu_ptr)
{
	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;
	struct kgd_mem **mem = (struct kgd_mem **) mem_obj;
	int r;

	BUG_ON(kgd == NULL);
	BUG_ON(gpu_addr == NULL);
	BUG_ON(cpu_ptr == NULL);

	*mem = kmalloc(sizeof(struct kgd_mem), GFP_KERNEL);
	if ((*mem) == NULL)
		return -ENOMEM;

	r = amdgpu_bo_create(rdev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,
			AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, &(*mem)->bo);
	if (r) {
		dev_err(rdev->dev,
			"failed to allocate BO for amdkfd (%d)\n", r);
		return r;
	}

	/* map the buffer */
	r = amdgpu_bo_reserve((*mem)->bo, true);
	if (r) {
		dev_err(rdev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
		goto allocate_mem_reserve_bo_failed;
	}

	r = amdgpu_bo_pin((*mem)->bo, AMDGPU_GEM_DOMAIN_GTT,
				&(*mem)->gpu_addr);
	if (r) {
		dev_err(rdev->dev, "(%d) failed to pin bo for amdkfd\n", r);
		goto allocate_mem_pin_bo_failed;
	}
	*gpu_addr = (*mem)->gpu_addr;

	r = amdgpu_bo_kmap((*mem)->bo, &(*mem)->cpu_ptr);
	if (r) {
		dev_err(rdev->dev,
			"(%d) failed to map bo to kernel for amdkfd\n", r);
		goto allocate_mem_kmap_bo_failed;
	}
	*cpu_ptr = (*mem)->cpu_ptr;

	amdgpu_bo_unreserve((*mem)->bo);

	return 0;

allocate_mem_kmap_bo_failed:
	amdgpu_bo_unpin((*mem)->bo);
allocate_mem_pin_bo_failed:
	amdgpu_bo_unreserve((*mem)->bo);
allocate_mem_reserve_bo_failed:
	amdgpu_bo_unref(&(*mem)->bo);

	return r;
}

void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
{
	struct kgd_mem *mem = (struct kgd_mem *) mem_obj;

	BUG_ON(mem == NULL);

	amdgpu_bo_reserve(mem->bo, true);
	amdgpu_bo_kunmap(mem->bo);
	amdgpu_bo_unpin(mem->bo);
	amdgpu_bo_unreserve(mem->bo);
	amdgpu_bo_unref(&(mem->bo));
	kfree(mem);
}

uint64_t get_vmem_size(struct kgd_dev *kgd)
{
	struct amdgpu_device *rdev =
		(struct amdgpu_device *)kgd;

	BUG_ON(kgd == NULL);

	return rdev->mc.real_vram_size;
}

uint64_t get_gpu_clock_counter(struct kgd_dev *kgd)
{
	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;

	if (rdev->asic_funcs->get_gpu_clock_counter)
		return rdev->asic_funcs->get_gpu_clock_counter(rdev);
	return 0;
}

uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
{
	struct amdgpu_device *rdev = (struct amdgpu_device *)kgd;

	/* The sclk is in quantas of 10kHz */
	return rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk / 100;
}
Commit	Line	Data
130e0371 OG	1	/*
	2	* Copyright 2014 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*/
	22
	23	#include "amdgpu_amdkfd.h"
	24	#include "amdgpu_family.h"
	25	#include <drm/drmP.h>
	26	#include "amdgpu.h"
	27	#include <linux/module.h>
	28
	29	const struct kfd2kgd_calls *kfd2kgd;
	30	const struct kgd2kfd_calls *kgd2kfd;
	31	bool (kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls*);
	32
	33	bool amdgpu_amdkfd_init(void)
	34	{
	35	#if defined(CONFIG_HSA_AMD_MODULE)
	36	bool (kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls*);
	37
	38	kgd2kfd_init_p = symbol_request(kgd2kfd_init);
	39
	40	if (kgd2kfd_init_p == NULL)
	41	return false;
	42	#endif
	43	return true;
	44	}
	45
	46	bool amdgpu_amdkfd_load_interface(struct amdgpu_device *rdev)
	47	{
	48	#if defined(CONFIG_HSA_AMD_MODULE)
	49	bool (kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls*);
	50	#endif
	51
	52	switch (rdev->asic_type) {
	53	case CHIP_KAVERI:
32c22e99 OG	54	kfd2kgd = amdgpu_amdkfd_gfx_7_get_functions();
32c22e99 OG	55	break;
ff758a12 BG	56	case CHIP_CARRIZO:
	57	kfd2kgd = amdgpu_amdkfd_gfx_8_0_get_functions();
	58	break;
130e0371 OG	59	default:
	60	return false;
	61	}
	62
	63	#if defined(CONFIG_HSA_AMD_MODULE)
	64	kgd2kfd_init_p = symbol_request(kgd2kfd_init);
	65
	66	if (kgd2kfd_init_p == NULL) {
	67	kfd2kgd = NULL;
	68	return false;
	69	}
	70
	71	if (!kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kgd2kfd)) {
	72	symbol_put(kgd2kfd_init);
	73	kfd2kgd = NULL;
	74	kgd2kfd = NULL;
	75
	76	return false;
	77	}
	78
	79	return true;
	80	#elif defined(CONFIG_HSA_AMD)
	81	if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kgd2kfd)) {
	82	kfd2kgd = NULL;
	83	kgd2kfd = NULL;
	84	return false;
	85	}
	86
	87	return true;
	88	#else
	89	kfd2kgd = NULL;
	90	return false;
	91	#endif
	92	}
	93
	94	void amdgpu_amdkfd_fini(void)
	95	{
	96	if (kgd2kfd) {
	97	kgd2kfd->exit();
	98	symbol_put(kgd2kfd_init);
	99	}
	100	}
	101
	102	void amdgpu_amdkfd_device_probe(struct amdgpu_device *rdev)
	103	{
	104	if (kgd2kfd)
	105	rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev,
	106	rdev->pdev, kfd2kgd);
	107	}
	108
	109	void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev)
	110	{
	111	if (rdev->kfd) {
	112	struct kgd2kfd_shared_resources gpu_resources = {
	113	.compute_vmid_bitmap = 0xFF00,
	114
	115	.first_compute_pipe = 1,
	116	.compute_pipe_count = 4 - 1,
	117	};
	118
	119	amdgpu_doorbell_get_kfd_info(rdev,
	120	&gpu_resources.doorbell_physical_address,
	121	&gpu_resources.doorbell_aperture_size,
	122	&gpu_resources.doorbell_start_offset);
123
124	kgd2kfd->device_init(rdev->kfd, &gpu_resources);
125	}
126	}
127
128	void amdgpu_amdkfd_device_fini(struct amdgpu_device *rdev)
129	{
130	if (rdev->kfd) {
131	kgd2kfd->device_exit(rdev->kfd);
132	rdev->kfd = NULL;
133	}
134	}
135
136	void amdgpu_amdkfd_interrupt(struct amdgpu_device *rdev,
137	const void *ih_ring_entry)
138	{
139	if (rdev->kfd)
140	kgd2kfd->interrupt(rdev->kfd, ih_ring_entry);
141	}
142
143	void amdgpu_amdkfd_suspend(struct amdgpu_device *rdev)
144	{
145	if (rdev->kfd)
146	kgd2kfd->suspend(rdev->kfd);
147	}
148
149	int amdgpu_amdkfd_resume(struct amdgpu_device *rdev)
150	{
151	int r = 0;
152
153	if (rdev->kfd)
154	r = kgd2kfd->resume(rdev->kfd);
155
156	return r;
157	}
158
159	u32 pool_to_domain(enum kgd_memory_pool p)
160	{
161	switch (p) {
162	case KGD_POOL_FRAMEBUFFER: return AMDGPU_GEM_DOMAIN_VRAM;
163	default: return AMDGPU_GEM_DOMAIN_GTT;
164	}
165	}
166
167	int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
168	void *mem_obj, uint64_t gpu_addr,
169	void **cpu_ptr)
170	{
171	struct amdgpu_device rdev = (struct amdgpu_device )kgd;
172	struct kgd_mem mem = (struct kgd_mem ) mem_obj;
173	int r;
174
175	BUG_ON(kgd == NULL);
176	BUG_ON(gpu_addr == NULL);
177	BUG_ON(cpu_ptr == NULL);
178
179	*mem = kmalloc(sizeof(struct kgd_mem), GFP_KERNEL);
180	if ((*mem) == NULL)
181	return -ENOMEM;
182
183	r = amdgpu_bo_create(rdev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,
184	AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, &(*mem)->bo);
185	if (r) {
186	dev_err(rdev->dev,
187	"failed to allocate BO for amdkfd (%d)\n", r);
188	return r;
189	}
190
191	/* map the buffer */
192	r = amdgpu_bo_reserve((*mem)->bo, true);
193	if (r) {
194	dev_err(rdev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
195	goto allocate_mem_reserve_bo_failed;
196	}
197
198	r = amdgpu_bo_pin((*mem)->bo, AMDGPU_GEM_DOMAIN_GTT,
199	&(*mem)->gpu_addr);
200	if (r) {
201	dev_err(rdev->dev, "(%d) failed to pin bo for amdkfd\n", r);
202	goto allocate_mem_pin_bo_failed;
203	}
204	gpu_addr = (mem)->gpu_addr;
205
206	r = amdgpu_bo_kmap((mem)->bo, &(mem)->cpu_ptr);
207	if (r) {
208	dev_err(rdev->dev,
209	"(%d) failed to map bo to kernel for amdkfd\n", r);
210	goto allocate_mem_kmap_bo_failed;
211	}
212	cpu_ptr = (mem)->cpu_ptr;
213
214	amdgpu_bo_unreserve((*mem)->bo);
215
216	return 0;
217
218	allocate_mem_kmap_bo_failed:
219	amdgpu_bo_unpin((*mem)->bo);
220	allocate_mem_pin_bo_failed:
221	amdgpu_bo_unreserve((*mem)->bo);
222	allocate_mem_reserve_bo_failed:
223	amdgpu_bo_unref(&(*mem)->bo);
224
225	return r;
226	}
227
228	void free_gtt_mem(struct kgd_dev kgd, void mem_obj)
229	{
230	struct kgd_mem mem = (struct kgd_mem ) mem_obj;
231
232	BUG_ON(mem == NULL);
233
234	amdgpu_bo_reserve(mem->bo, true);
235	amdgpu_bo_kunmap(mem->bo);
236	amdgpu_bo_unpin(mem->bo);
237	amdgpu_bo_unreserve(mem->bo);
238	amdgpu_bo_unref(&(mem->bo));
239	kfree(mem);
240	}
241
242	uint64_t get_vmem_size(struct kgd_dev *kgd)
243	{
244	struct amdgpu_device *rdev =
245	(struct amdgpu_device *)kgd;
246
247	BUG_ON(kgd == NULL);
248
249	return rdev->mc.real_vram_size;
250	}
251
252	uint64_t get_gpu_clock_counter(struct kgd_dev *kgd)
253	{
254	struct amdgpu_device rdev = (struct amdgpu_device )kgd;
255
256	if (rdev->asic_funcs->get_gpu_clock_counter)
257	return rdev->asic_funcs->get_gpu_clock_counter(rdev);
258	return 0;
259	}
260
261	uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
262	{
263	struct amdgpu_device rdev = (struct amdgpu_device )kgd;
264
265	/* The sclk is in quantas of 10kHz */
266	return rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk / 100;
267	}