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// SPDX-License-Identifier: GPL-2.0
/*
* GXP client structure.
*
* Copyright (C) 2021 Google LLC
*/
#include <linux/slab.h>
#include <linux/types.h>
#include "gxp-client.h"
#include "gxp-dma.h"
#include "gxp-internal.h"
#include "gxp-pm.h"
#include "gxp-vd.h"
#include "gxp-wakelock.h"
struct gxp_client *gxp_client_create(struct gxp_dev *gxp)
{
struct gxp_client *client;
client = kzalloc(sizeof(*client), GFP_KERNEL);
if (!client)
return ERR_PTR(-ENOMEM);
client->gxp = gxp;
init_rwsem(&client->semaphore);
client->has_block_wakelock = false;
client->has_vd_wakelock = false;
client->requested_power_state = AUR_OFF;
client->requested_memory_power_state = 0;
client->vd = NULL;
client->tpu_mbx_allocated = false;
client->requested_aggressor = false;
return client;
}
void gxp_client_destroy(struct gxp_client *client)
{
struct gxp_dev *gxp = client->gxp;
int core;
down_write(&gxp->vd_semaphore);
#if IS_ENABLED(CONFIG_ANDROID) && !IS_ENABLED(CONFIG_GXP_GEM5)
/*
* Unmap TPU buffers, if the mapping is already removed, this
* is a no-op.
*/
gxp_dma_unmap_tpu_buffer(gxp, client->vd, client->mbx_desc);
#endif // CONFIG_ANDROID && !CONFIG_GXP_GEM5
if (client->has_vd_wakelock)
gxp_vd_stop(client->vd);
for (core = 0; core < GXP_NUM_CORES; core++) {
if (client->mb_eventfds[core])
gxp_eventfd_put(client->mb_eventfds[core]);
}
up_write(&gxp->vd_semaphore);
if (client->has_block_wakelock) {
gxp_wakelock_release(client->gxp);
gxp_pm_update_requested_power_state(
gxp, client->requested_power_state,
client->requested_aggressor, AUR_OFF, true);
gxp_pm_update_requested_memory_power_state(
gxp, client->requested_memory_power_state,
AUR_MEM_UNDEFINED);
}
if (client->vd)
gxp_vd_release(client->vd);
kfree(client);
}
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