1 files changed, 308 insertions, 0 deletions
diff --git a/drivers/gpu/arm/utgard/common/mali_pp_job.c b/drivers/gpu/arm/utgard/common/mali_pp_job.c
new file mode 100644
index 000000000000..5528360841af
--- /dev/null
+++ b/drivers/gpu/arm/utgard/common/mali_pp_job.c
@@ -0,0 +1,308 @@
+/*
+ * Copyright (C) 2011-2015 ARM Limited. All rights reserved.
+ * 
+ * This program is free software and is provided to you under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
+ * 
+ * A copy of the licence is included with the program, and can also be obtained from Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "mali_pp.h"
+#include "mali_pp_job.h"
+#include "mali_osk.h"
+#include "mali_osk_list.h"
+#include "mali_kernel_common.h"
+#include "mali_uk_types.h"
+#include "mali_executor.h"
+#if defined(CONFIG_DMA_SHARED_BUFFER) && !defined(CONFIG_MALI_DMA_BUF_MAP_ON_ATTACH)
+#include "linux/mali_memory_dma_buf.h"
+#endif
+#include "mali_memory_swap_alloc.h"
+#include "mali_scheduler.h"
+
+static u32 pp_counter_src0 = MALI_HW_CORE_NO_COUNTER;   /**< Performance counter 0, MALI_HW_CORE_NO_COUNTER for disabled */
+static u32 pp_counter_src1 = MALI_HW_CORE_NO_COUNTER;   /**< Performance counter 1, MALI_HW_CORE_NO_COUNTER for disabled */
+static _mali_osk_atomic_t pp_counter_per_sub_job_count; /**< Number of values in the two arrays which is != MALI_HW_CORE_NO_COUNTER */
+static u32 pp_counter_per_sub_job_src0[_MALI_PP_MAX_SUB_JOBS] = { MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER };
+static u32 pp_counter_per_sub_job_src1[_MALI_PP_MAX_SUB_JOBS] = { MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER, MALI_HW_CORE_NO_COUNTER };
+
+void mali_pp_job_initialize(void)
+{
+	_mali_osk_atomic_init(&pp_counter_per_sub_job_count, 0);
+}
+
+void mali_pp_job_terminate(void)
+{
+	_mali_osk_atomic_term(&pp_counter_per_sub_job_count);
+}
+
+struct mali_pp_job *mali_pp_job_create(struct mali_session_data *session,
+				       _mali_uk_pp_start_job_s __user *uargs, u32 id)
+{
+	struct mali_pp_job *job;
+	u32 perf_counter_flag;
+
+	job = _mali_osk_calloc(1, sizeof(struct mali_pp_job));
+	if (NULL != job) {
+
+		_mali_osk_list_init(&job->list);
+		_mali_osk_list_init(&job->session_fb_lookup_list);
+
+		if (0 != _mali_osk_copy_from_user(&job->uargs, uargs, sizeof(_mali_uk_pp_start_job_s))) {
+			goto fail;
+		}
+
+		if (job->uargs.num_cores > _MALI_PP_MAX_SUB_JOBS) {
+			MALI_PRINT_ERROR(("Mali PP job: Too many sub jobs specified in job object\n"));
+			goto fail;
+		}
+
+		if (!mali_pp_job_use_no_notification(job)) {
+			job->finished_notification = _mali_osk_notification_create(_MALI_NOTIFICATION_PP_FINISHED, sizeof(_mali_uk_pp_job_finished_s));
+			if (NULL == job->finished_notification) goto fail;
+		}
+
+		perf_counter_flag = mali_pp_job_get_perf_counter_flag(job);
+
+		/* case when no counters came from user space
+		 * so pass the debugfs / DS-5 provided global ones to the job object */
+		if (!((perf_counter_flag & _MALI_PERFORMANCE_COUNTER_FLAG_SRC0_ENABLE) ||
+		      (perf_counter_flag & _MALI_PERFORMANCE_COUNTER_FLAG_SRC1_ENABLE))) {
+			u32 sub_job_count = _mali_osk_atomic_read(&pp_counter_per_sub_job_count);
+
+			/* These counters apply for all virtual jobs, and where no per sub job counter is specified */
+			job->uargs.perf_counter_src0 = pp_counter_src0;
+			job->uargs.perf_counter_src1 = pp_counter_src1;
+
+			/* We only copy the per sub job array if it is enabled with at least one counter */
+			if (0 < sub_job_count) {
+				job->perf_counter_per_sub_job_count = sub_job_count;
+				_mali_osk_memcpy(job->perf_counter_per_sub_job_src0, pp_counter_per_sub_job_src0, sizeof(pp_counter_per_sub_job_src0));
+				_mali_osk_memcpy(job->perf_counter_per_sub_job_src1, pp_counter_per_sub_job_src1, sizeof(pp_counter_per_sub_job_src1));
+			}
+		}
+
+		job->session = session;
+		job->id = id;
+
+		job->sub_jobs_num = job->uargs.num_cores ? job->uargs.num_cores : 1;
+		job->pid = _mali_osk_get_pid();
+		job->tid = _mali_osk_get_tid();
+
+		_mali_osk_atomic_init(&job->sub_jobs_completed, 0);
+		_mali_osk_atomic_init(&job->sub_job_errors, 0);
+		job->swap_status = MALI_NO_SWAP_IN;
+		job->user_notification = MALI_FALSE;
+		job->num_pp_cores_in_virtual = 0;
+
+		if (job->uargs.num_memory_cookies > session->allocation_mgr.mali_allocation_num) {
+			MALI_PRINT_ERROR(("Mali PP job: The number of memory cookies is invalid !\n"));
+			goto fail;
+		}
+
+		if (job->uargs.num_memory_cookies > 0) {
+			u32 size;
+			u32 __user *memory_cookies = (u32 __user *)(uintptr_t)job->uargs.memory_cookies;
+
+			size = sizeof(*memory_cookies) * (job->uargs.num_memory_cookies);
+
+			job->memory_cookies = _mali_osk_malloc(size);
+			if (NULL == job->memory_cookies) {
+				MALI_PRINT_ERROR(("Mali PP job: Failed to allocate %d bytes of memory cookies!\n", size));
+				goto fail;
+			}
+
+			if (0 != _mali_osk_copy_from_user(job->memory_cookies, memory_cookies, size)) {
+				MALI_PRINT_ERROR(("Mali PP job: Failed to copy %d bytes of memory cookies from user!\n", size));
+				goto fail;
+			}
+		}
+
+		if (_MALI_OSK_ERR_OK != mali_pp_job_check(job)) {
+			/* Not a valid job. */
+			goto fail;
+		}
+
+		mali_timeline_tracker_init(&job->tracker, MALI_TIMELINE_TRACKER_PP, NULL, job);
+		mali_timeline_fence_copy_uk_fence(&(job->tracker.fence), &(job->uargs.fence));
+
+		mali_mem_swap_in_pages(job);
+
+		return job;
+	}
+
+fail:
+	if (NULL != job) {
+		mali_pp_job_delete(job);
+	}
+
+	return NULL;
+}
+
+void mali_pp_job_delete(struct mali_pp_job *job)
+{
+	MALI_DEBUG_ASSERT_POINTER(job);
+	MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->list));
+	MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_fb_lookup_list));
+
+	if (NULL != job->memory_cookies) {
+#if defined(CONFIG_DMA_SHARED_BUFFER) && !defined(CONFIG_MALI_DMA_BUF_MAP_ON_ATTACH)
+		/* Unmap buffers attached to job */
+		mali_dma_buf_unmap_job(job);
+#endif
+		if (MALI_NO_SWAP_IN != job->swap_status) {
+			mali_mem_swap_out_pages(job);
+		}
+
+		_mali_osk_free(job->memory_cookies);
+	}
+
+	if (job->user_notification) {
+		mali_scheduler_return_pp_job_to_user(job,
+						     job->num_pp_cores_in_virtual);
+	}
+
+	if (NULL != job->finished_notification) {
+		_mali_osk_notification_delete(job->finished_notification);
+	}
+
+	_mali_osk_atomic_term(&job->sub_jobs_completed);
+	_mali_osk_atomic_term(&job->sub_job_errors);
+
+	_mali_osk_free(job);
+}
+
+void mali_pp_job_list_add(struct mali_pp_job *job, _mali_osk_list_t *list)
+{
+	struct mali_pp_job *iter;
+	struct mali_pp_job *tmp;
+
+	MALI_DEBUG_ASSERT_POINTER(job);
+	MALI_DEBUG_ASSERT_SCHEDULER_LOCK_HELD();
+
+	/* Find position in list/queue where job should be added. */
+	_MALI_OSK_LIST_FOREACHENTRY_REVERSE(iter, tmp, list,
+					    struct mali_pp_job, list) {
+		/* job should be started after iter if iter is in progress. */
+		if (0 < iter->sub_jobs_started) {
+			break;
+		}
+
+		/*
+		 * job should be started after iter if it has a higher
+		 * job id. A span is used to handle job id wrapping.
+		 */
+		if ((mali_pp_job_get_id(job) -
+		     mali_pp_job_get_id(iter)) <
+		    MALI_SCHEDULER_JOB_ID_SPAN) {
+			break;
+		}
+	}
+
+	_mali_osk_list_add(&job->list, &iter->list);
+}
+
+
+u32 mali_pp_job_get_perf_counter_src0(struct mali_pp_job *job, u32 sub_job)
+{
+	/* Virtual jobs always use the global job counter (or if there are per sub job counters at all) */
+	if (mali_pp_job_is_virtual(job) || 0 == job->perf_counter_per_sub_job_count) {
+		return job->uargs.perf_counter_src0;
+	}
+
+	/* Use per sub job counter if enabled... */
+	if (MALI_HW_CORE_NO_COUNTER != job->perf_counter_per_sub_job_src0[sub_job]) {
+		return job->perf_counter_per_sub_job_src0[sub_job];
+	}
+
+	/* ...else default to global job counter */
+	return job->uargs.perf_counter_src0;
+}
+
+u32 mali_pp_job_get_perf_counter_src1(struct mali_pp_job *job, u32 sub_job)
+{
+	/* Virtual jobs always use the global job counter (or if there are per sub job counters at all) */
+	if (mali_pp_job_is_virtual(job) || 0 == job->perf_counter_per_sub_job_count) {
+		/* Virtual jobs always use the global job counter */
+		return job->uargs.perf_counter_src1;
+	}
+
+	/* Use per sub job counter if enabled... */
+	if (MALI_HW_CORE_NO_COUNTER != job->perf_counter_per_sub_job_src1[sub_job]) {
+		return job->perf_counter_per_sub_job_src1[sub_job];
+	}
+
+	/* ...else default to global job counter */
+	return job->uargs.perf_counter_src1;
+}
+
+void mali_pp_job_set_pp_counter_global_src0(u32 counter)
+{
+	pp_counter_src0 = counter;
+}
+
+void mali_pp_job_set_pp_counter_global_src1(u32 counter)
+{
+	pp_counter_src1 = counter;
+}
+
+void mali_pp_job_set_pp_counter_sub_job_src0(u32 sub_job, u32 counter)
+{
+	MALI_DEBUG_ASSERT(sub_job < _MALI_PP_MAX_SUB_JOBS);
+
+	if (MALI_HW_CORE_NO_COUNTER == pp_counter_per_sub_job_src0[sub_job]) {
+		/* increment count since existing counter was disabled */
+		_mali_osk_atomic_inc(&pp_counter_per_sub_job_count);
+	}
+
+	if (MALI_HW_CORE_NO_COUNTER == counter) {
+		/* decrement count since new counter is disabled */
+		_mali_osk_atomic_dec(&pp_counter_per_sub_job_count);
+	}
+
+	/* PS: A change from MALI_HW_CORE_NO_COUNTER to MALI_HW_CORE_NO_COUNTER will inc and dec, result will be 0 change */
+
+	pp_counter_per_sub_job_src0[sub_job] = counter;
+}
+
+void mali_pp_job_set_pp_counter_sub_job_src1(u32 sub_job, u32 counter)
+{
+	MALI_DEBUG_ASSERT(sub_job < _MALI_PP_MAX_SUB_JOBS);
+
+	if (MALI_HW_CORE_NO_COUNTER == pp_counter_per_sub_job_src1[sub_job]) {
+		/* increment count since existing counter was disabled */
+		_mali_osk_atomic_inc(&pp_counter_per_sub_job_count);
+	}
+
+	if (MALI_HW_CORE_NO_COUNTER == counter) {
+		/* decrement count since new counter is disabled */
+		_mali_osk_atomic_dec(&pp_counter_per_sub_job_count);
+	}
+
+	/* PS: A change from MALI_HW_CORE_NO_COUNTER to MALI_HW_CORE_NO_COUNTER will inc and dec, result will be 0 change */
+
+	pp_counter_per_sub_job_src1[sub_job] = counter;
+}
+
+u32 mali_pp_job_get_pp_counter_global_src0(void)
+{
+	return pp_counter_src0;
+}
+
+u32 mali_pp_job_get_pp_counter_global_src1(void)
+{
+	return pp_counter_src1;
+}
+
+u32 mali_pp_job_get_pp_counter_sub_job_src0(u32 sub_job)
+{
+	MALI_DEBUG_ASSERT(sub_job < _MALI_PP_MAX_SUB_JOBS);
+	return pp_counter_per_sub_job_src0[sub_job];
+}
+
+u32 mali_pp_job_get_pp_counter_sub_job_src1(u32 sub_job)
+{
+	MALI_DEBUG_ASSERT(sub_job < _MALI_PP_MAX_SUB_JOBS);
+	return pp_counter_per_sub_job_src1[sub_job];
+}