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1 files changed, 1150 insertions, 0 deletions

diff --git a/llama.cpp/ggml/src/ggml-hexagon/htp/main.c b/llama.cpp/ggml/src/ggml-hexagon/htp/main.c
new file mode 100644
index 0000000..62708ee
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-hexagon/htp/main.c
@@ -0,0 +1,1150 @@
+#pragma clang diagnostic ignored "-Wgnu-zero-variadic-macro-arguments"
+#pragma clang diagnostic ignored "-Wunused-function"
+
+#include <HAP_farf.h>
+#include <HAP_perf.h>
+#include <AEEStdErr.h>
+#include <dspqueue.h>
+#include <HAP_compute_res.h>
+#include <HAP_etm_config.h>
+#include <HAP_mem.h>
+#include <HAP_power.h>
+#include <HAP_ps.h>
+#include <qurt.h>
+#include <qurt_thread.h>
+#include <remote.h>
+#include <string.h>
+
+#include "hex-dma.h"
+#include "hex-utils.h"
+
+#define GGML_COMMON_DECL_C
+#include "ggml-common.h"
+#include "htp-ctx.h"
+#include "htp-msg.h"
+#include "htp-ops.h"
+#include "worker-pool.h"
+
+AEEResult htp_iface_open(const char * uri, remote_handle64 * handle) {
+    struct htp_context * ctx;
+    int                  err = 0;
+
+    ctx = calloc(1, sizeof(*ctx));
+    if (ctx == NULL) {
+        return AEE_ENOMEMORY;
+    }
+
+    // Use the context structure as a handle
+    *handle = (remote_handle64) ctx;
+
+    // Enable FARF logs
+    HAP_setFARFRuntimeLoggingParams(0xffff, NULL, 0);
+
+    // Set client class
+    {
+        HAP_power_request_t request;
+        memset(&request, 0, sizeof(HAP_power_request_t));
+        request.type    = HAP_power_set_apptype;
+        request.apptype = HAP_POWER_COMPUTE_CLIENT_CLASS;
+
+        if ((err = HAP_power_set((void *) ctx, &request)) != 0) {
+            return err;
+        }
+    }
+
+    {
+        HAP_power_request_t request;
+        memset(&request, 0, sizeof(request));
+
+        request.type                              = HAP_power_set_DCVS_v3;
+        request.dcvs_v3.set_dcvs_enable           = TRUE;
+        request.dcvs_v3.dcvs_enable               = TRUE;
+        request.dcvs_v3.dcvs_option               = HAP_DCVS_V2_PERFORMANCE_MODE;
+        request.dcvs_v3.set_bus_params            = TRUE;
+        request.dcvs_v3.bus_params.min_corner     = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.bus_params.max_corner     = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.bus_params.target_corner  = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.set_core_params           = TRUE;
+        request.dcvs_v3.core_params.min_corner    = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.core_params.max_corner    = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.core_params.target_corner = HAP_DCVS_VCORNER_MAX;
+        request.dcvs_v3.set_sleep_disable         = TRUE;
+        request.dcvs_v3.sleep_disable             = TRUE;
+        if ((err = HAP_power_set((void *) ctx, &request)) != 0) {
+            return err;
+        }
+
+        memset(&request, 0, sizeof(request));
+        request.type         = HAP_power_set_HVX;
+        request.hvx.power_up = TRUE;
+        if ((err = HAP_power_set((void *) ctx, &request)) != 0) {
+            return err;
+        }
+    }
+
+    {
+        // Power on HMX
+        HAP_power_request_t request;
+        memset(&request, 0, sizeof(HAP_power_request_t));
+        request.type         = HAP_power_set_HMX;
+        request.hmx.power_up = TRUE;
+        FARF(ALWAYS, "Powering HMX on\n");
+        err = HAP_power_set((void *) &ctx, &request);
+        if (err != AEE_SUCCESS) {
+            FARF(ERROR, "Error powering on HMX.");
+            return err;
+        }
+    }
+
+    return AEE_SUCCESS;
+}
+
+AEEResult htp_iface_close(remote_handle64 handle) {
+    struct htp_context * ctx = (struct htp_context *) handle;
+
+    if (!ctx) {
+        return AEE_EBADPARM;
+    }
+
+    if (ctx->queue) {
+        FARF(ERROR, "Closing handle with queue still open");
+        return AEE_EITEMBUSY;
+    }
+
+    free(ctx);
+    return AEE_SUCCESS;
+}
+
+AEEResult htp_iface_enable_etm(remote_handle64 handle) {
+    int err = HAP_user_etm_enable();
+    if (err) {
+        if (err == AEE_EVERSIONNOTSUPPORT) {
+            FARF(ERROR, "API HAP_user_etm_enable is not supported\n");
+        } else {
+            FARF(ERROR, "Error executing HAP_user_etm_enable with error code : 0x%x\n", err);
+        }
+    }
+    return err;
+}
+
+AEEResult htp_iface_disable_etm(remote_handle64 handle) {
+    int err = HAP_user_etm_disable();
+    if (err) {
+        if (err == AEE_EVERSIONNOTSUPPORT) {
+            FARF(ERROR, "API HAP_user_etm_disable is not supported\n");
+        } else {
+            FARF(ERROR, "Error executing HAP_user_etm_disable with error code : 0x%x\n", err);
+        }
+    }
+    return err;
+}
+
+static int vtcm_acquire(struct htp_context * ctx) {
+    int err;
+    if (!ctx->vtcm_valid) {
+        // Temporarily bump thread priority to make sure it's higher than other sessions.
+        // This way the resource manager will notify the other thread to release VTCM.
+        // Note that we need to reaquire VTCM at normal priority for this to work next time.
+        qurt_thread_set_priority(qurt_thread_get_id(), ctx->thread_prio - 10);
+        err = HAP_compute_res_acquire_cached(ctx->vtcm_rctx, 1000000);
+        if (err != 0) {
+            FARF(ERROR, "Failed to acquire VTCM: 0x%08x", (unsigned)err);
+            abort();
+        }
+        HAP_compute_res_release_cached(ctx->vtcm_rctx);
+        qurt_thread_set_priority(qurt_thread_get_id(), ctx->thread_prio);
+
+        err = HAP_compute_res_acquire_cached(ctx->vtcm_rctx, 1000000);
+        if (err != 0) {
+            FARF(ERROR, "Failed to acquire VTCM: 0x%08x", (unsigned)err);
+            abort();
+        }
+        ctx->vtcm_valid = true;
+    }
+
+    ctx->vtcm_inuse = true;
+    return 0;
+}
+
+static int vtcm_release(struct htp_context * ctx) {
+    ctx->vtcm_inuse = false;
+
+    if (ctx->vtcm_valid && ctx->vtcm_needs_release) {
+        ctx->vtcm_valid         = false;
+        ctx->vtcm_needs_release = false;
+        HAP_compute_res_release_cached(ctx->vtcm_rctx);
+    }
+
+    return 0;
+}
+
+static int vtcm_release_callback(unsigned int rctx, void * state) {
+    struct htp_context * ctx = (struct htp_context *) state;
+
+    if (!ctx || ctx->vtcm_rctx != rctx) {
+        return AEE_EBADPARM;
+    }
+
+    // If VTCM is not inuse (not processing Ops) release it right here
+    // otherwise we'll release it once we're done with the current Op.
+
+    if (ctx->vtcm_inuse) {
+        ctx->vtcm_needs_release = false;
+        return 0;
+    }
+
+    ctx->vtcm_valid = false;
+    HAP_compute_res_release_cached(ctx->vtcm_rctx);
+
+    return 0;
+}
+
+static int vtcm_alloc(struct htp_context * ctx) {
+    unsigned int vtcm_size = 8 * 1024 * 1024;  // 8MB default
+    HAP_compute_res_query_VTCM(0, &vtcm_size, NULL, NULL, NULL);
+
+    compute_res_attr_t attr;
+    HAP_compute_res_attr_init(&attr);
+    HAP_compute_res_attr_set_serialize(&attr, 0);
+    HAP_compute_res_attr_set_cache_mode(&attr, 1);
+    HAP_compute_res_attr_set_vtcm_param_v2(&attr, vtcm_size, 0, vtcm_size);
+    HAP_compute_res_attr_set_release_callback(&attr, vtcm_release_callback, (void *) ctx);
+    HAP_compute_res_attr_set_hmx_param(&attr, 1);
+
+    // Allocate VTCM for scratch pads
+    uint32_t rctx = HAP_compute_res_acquire(&attr, 1000000 /* timeout */);
+    if (!rctx) {
+        FARF(ERROR, "failed to allocate %zu bytes VTCM\n", ctx->vtcm_size);
+        return AEE_ENOMEMORY;
+    }
+
+    void * vtcm_ptr;
+    if (HAP_compute_res_attr_get_vtcm_ptr_v2(&attr, &vtcm_ptr, &vtcm_size) != 0) {
+        HAP_compute_res_release(rctx);
+        FARF(ERROR, "failed to allocate %zu bytes VTCM (new)\n", ctx->vtcm_size);
+        return AEE_ENOMEMORY;
+    }
+
+    ctx->vtcm_base          = (uint8_t *) vtcm_ptr;
+    ctx->vtcm_size          = vtcm_size;
+    ctx->vtcm_rctx          = rctx;
+    ctx->vtcm_valid         = false;
+    ctx->vtcm_inuse         = false;
+    ctx->vtcm_needs_release = false;
+
+    return 0;
+}
+
+static void vtcm_free(struct htp_context * ctx) {
+    if (ctx->vtcm_rctx) {
+        HAP_compute_res_release(ctx->vtcm_rctx);
+        ctx->vtcm_base = 0;
+        ctx->vtcm_rctx = 0;
+    }
+}
+
+static void htp_packet_callback(dspqueue_t queue, int error, void * context);
+static void htp_error_callback(dspqueue_t queue, int error, void * context);
+
+AEEResult htp_iface_start(remote_handle64 handle, uint32 sess_id, uint64 dsp_queue_id, uint32 n_hvx) {
+    struct htp_context * ctx = (struct htp_context *) handle;
+
+    if (!ctx) {
+        return AEE_EBADPARM;
+    }
+
+    if (ctx->queue) {
+        FARF(ERROR, "Queue already open");
+        return AEE_EITEMBUSY;
+    }
+
+    // Import queue created on the CPU
+    int err = dspqueue_import(dsp_queue_id,         // Queue ID from dspqueue_export
+                              htp_packet_callback,  // Packet callback
+                              htp_error_callback,   // Error callback; no errors expected on the DSP
+                              (void *) ctx,         // Callback context
+                              &ctx->queue);
+
+    if (err) {
+        FARF(ERROR, "Queue import failed with 0x%08x", (unsigned) err);
+        return err;
+    }
+
+    ctx->thread_id   = qurt_thread_get_id();
+    ctx->thread_prio = qurt_thread_get_priority(ctx->thread_id);
+
+    // allocate VTCM
+    err = vtcm_alloc(ctx);
+    if (err != AEE_SUCCESS) {
+        FARF(ERROR, "Unable to allocate VTCM");
+        return AEE_ENOMEMORY;
+    }
+
+    qurt_sysenv_max_hthreads_t hw_threads;
+    qurt_sysenv_get_max_hw_threads(&hw_threads);
+    uint32_t hw_nhvx = (qurt_hvx_get_units() >> 8) & 0xFF;
+
+    if (n_hvx == 0) {
+        n_hvx = hw_nhvx;
+    }
+    if (n_hvx > hw_threads.max_hthreads) {
+        n_hvx = hw_threads.max_hthreads;
+    }
+    if (n_hvx > HTP_MAX_NTHREADS) {
+        n_hvx = HTP_MAX_NTHREADS;
+    }
+
+    ctx->n_threads = n_hvx;
+    for (int i = 0; i < ctx->n_threads; i++) {
+        // see discussion https://github.com/ggml-org/llama.cpp/pull/18151#discussion_r2632388541
+        ctx->dma[i] = dma_queue_create(64);
+    }
+
+    // init worker pool
+    err = worker_pool_init(&ctx->worker_pool, n_hvx);
+    if (err != AEE_SUCCESS) {
+        FARF(ERROR, "Unable to create worker pool");
+        return err;
+    }
+
+    FARF(HIGH, "session %u started: n-hvx %u vtcm-size %zu vtcm-rctx %u n-threads %u thread-id %d thread-prio %d \n",
+         sess_id, hw_nhvx, ctx->vtcm_size, ctx->vtcm_rctx, ctx->n_threads, ctx->thread_id, ctx->thread_prio);
+
+    return AEE_SUCCESS;
+}
+
+AEEResult htp_iface_stop(remote_handle64 handle) {
+    struct htp_context * ctx = (struct htp_context *) handle;
+    if (!ctx) {
+        return AEE_EBADPARM;
+    }
+
+    if (!ctx->queue) {
+        FARF(ERROR, "Queue not open");
+        return AEE_EBADSTATE;
+    }
+
+    // Close queue. dspqueue_close() will also wait for callbacks to finish.
+    int err    = dspqueue_close(ctx->queue);
+    ctx->queue = NULL;
+    if (err != 0) {
+        FARF(ERROR, "Queue close failed with 0x%08x", (unsigned) err);
+        return err;
+    }
+
+    if (ctx->worker_pool) {
+        // Release worker pool
+        worker_pool_release(&ctx->worker_pool);
+    }
+
+    for (int i = 0; i < ctx->n_threads; i++) {
+        dma_queue_delete(ctx->dma[i]);
+    }
+
+    vtcm_free(ctx);
+
+    return AEE_SUCCESS;
+}
+
+static void htp_error_callback(dspqueue_t queue, int error, void * context) {
+    // No errors expected on the DSP.
+    FARF(ERROR, "Error callback: 0x%08x", (unsigned) error);
+}
+
+struct profile_data {
+    uint64_t usecs;
+    uint64_t cycles;
+    uint64_t pkts;
+};
+
+static inline void profile_start(struct profile_data * d) {
+    d->usecs  = HAP_perf_get_qtimer_count();
+    d->cycles = hex_get_cycles();
+    d->pkts   = hex_get_pktcnt();
+}
+
+static inline void profile_stop(struct profile_data * d) {
+    d->usecs  = HAP_perf_qtimer_count_to_us(HAP_perf_get_qtimer_count() - d->usecs);
+    d->cycles = hex_get_cycles() - d->cycles;
+    d->pkts   = hex_get_pktcnt() - d->pkts;
+}
+
+static int send_htp_rsp(struct htp_context *     c,
+                        uint32_t                 op,
+                        uint32_t                 status,
+                        struct dspqueue_buffer * bufs,
+                        size_t                   n_bufs,
+                        struct profile_data *    prof) {
+    // Prep response struct
+    struct htp_general_rsp rsp;
+    rsp.op          = op;
+    rsp.status      = status;
+    rsp.prof_usecs  = prof->usecs;
+    rsp.prof_cycles = prof->cycles;
+    rsp.prof_pkts   = prof->pkts;
+
+    int err = dspqueue_write(c->queue,
+                             0,                       // Flags
+                             n_bufs,
+                             bufs,                    // Buffer references
+                             sizeof(rsp),
+                             (const uint8_t *) &rsp,  // Message
+                             DSPQUEUE_TIMEOUT_NONE);
+
+    if (err != 0) {
+        FARF(ERROR, "dspqueue_write failed: 0x%08x", (unsigned) err);
+    }
+
+    return err;
+}
+
+static void proc_matmul_req(struct htp_context *     ctx,
+                            struct htp_general_req * req,
+                            struct dspqueue_buffer * bufs,
+                            size_t                   n_bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[2].fd;
+    rsp_bufs[0].ptr    = bufs[2].ptr;
+    rsp_bufs[0].size   = bufs[2].size;
+    rsp_bufs[0].offset = bufs[2].offset;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.dst.data  = (uint32_t) bufs[2].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_matmul(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_argsort_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[1].fd;
+    rsp_bufs[0].ptr    = bufs[1].ptr;
+    rsp_bufs[0].offset = bufs[1].offset;
+    rsp_bufs[0].size   = bufs[1].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.dst.data  = (uint32_t) bufs[1].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_argsort(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_cpy_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[1].fd;
+    rsp_bufs[0].ptr    = bufs[1].ptr;
+    rsp_bufs[0].offset = bufs[1].offset;
+    rsp_bufs[0].size   = bufs[1].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.dst.data  = (uint32_t) bufs[1].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_cpy(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_get_rows_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[2].fd;
+    rsp_bufs[0].ptr    = bufs[2].ptr;
+    rsp_bufs[0].offset = bufs[2].offset;
+    rsp_bufs[0].size   = bufs[2].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.dst.data  = (uint32_t) bufs[2].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_get_rows(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_matmul_id_req(struct htp_context *     ctx,
+                               struct htp_general_req * req,
+                               struct dspqueue_buffer * bufs,
+                               size_t                   n_bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[3].fd;
+    rsp_bufs[0].ptr    = bufs[3].ptr;
+    rsp_bufs[0].size   = bufs[3].size;
+    rsp_bufs[0].offset = bufs[3].offset;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.src2                   = req->src2;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.src2.data = (uint32_t) bufs[2].ptr;
+    octx.dst.data  = (uint32_t) bufs[3].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_matmul_id(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_binary_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[2].fd;
+    rsp_bufs[0].ptr    = bufs[2].ptr;
+    rsp_bufs[0].offset = bufs[2].offset;
+    rsp_bufs[0].size   = bufs[2].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.dst.data  = (uint32_t) bufs[2].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_binary(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_add_id_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[3].fd;
+    rsp_bufs[0].ptr    = bufs[3].ptr;
+    rsp_bufs[0].offset = bufs[3].offset;
+    rsp_bufs[0].size   = bufs[3].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.src2                   = req->src2;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.src2.data = (uint32_t) bufs[2].ptr;
+    octx.dst.data  = (uint32_t) bufs[3].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_binary(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_unary_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[HTP_MAX_PACKET_BUFFERS];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[1].fd;
+    rsp_bufs[0].ptr    = bufs[1].ptr;
+    rsp_bufs[0].offset = bufs[1].offset;
+    rsp_bufs[0].size   = bufs[1].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.dst.data  = (uint32_t) bufs[1].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_unary(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_sum_rows_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[HTP_MAX_PACKET_BUFFERS];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[1].fd;
+    rsp_bufs[0].ptr    = bufs[1].ptr;
+    rsp_bufs[0].offset = bufs[1].offset;
+    rsp_bufs[0].size   = bufs[1].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.dst.data  = (uint32_t) bufs[1].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_sum_rows(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_activations_req(struct htp_context *     ctx,
+                                 struct htp_general_req * req,
+                                 struct dspqueue_buffer * bufs,
+                                 uint32_t                 n_bufs) {
+    struct dspqueue_buffer rsp_bufs[HTP_MAX_PACKET_BUFFERS];
+
+    int write_idx = (n_bufs == 3) ? 2 : 1;
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[write_idx].fd;
+    rsp_bufs[0].ptr    = bufs[write_idx].ptr;
+    rsp_bufs[0].offset = bufs[write_idx].offset;
+    rsp_bufs[0].size   = bufs[write_idx].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                          DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT); // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    if (3 == n_bufs) {
+        octx.src1 = req->src1;
+    }
+    octx.dst   = req->dst;
+    octx.flags = req->flags;
+    octx.op    = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    if (3 == n_bufs) {
+        octx.src1.data = (uint32_t) bufs[1].ptr;
+        octx.dst.data  = (uint32_t) bufs[2].ptr;
+    } else {
+        octx.dst.data = (uint32_t) bufs[1].ptr;
+    }
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        if (octx.op == HTP_OP_SOFTMAX) {
+            rsp_status = op_softmax(&octx);
+        } else {
+            rsp_status = op_activations(&octx);
+        }
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_rope_req(struct htp_context *     ctx,
+                          struct htp_general_req * req,
+                          struct dspqueue_buffer * bufs,
+                          uint32_t                 n_bufs) {
+    struct dspqueue_buffer rsp_bufs[HTP_MAX_PACKET_BUFFERS];
+
+    int write_idx = n_bufs - 1;
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[write_idx].fd;
+    rsp_bufs[0].ptr    = bufs[write_idx].ptr;
+    rsp_bufs[0].offset = bufs[write_idx].offset;
+    rsp_bufs[0].size   = bufs[write_idx].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                          DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT); // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    if (4 == n_bufs) {
+        octx.src2 = req->src2;
+    }
+    octx.dst   = req->dst;
+    octx.flags = req->flags;
+    octx.op    = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    if (4 == n_bufs) {
+        octx.src2.data = (uint32_t) bufs[2].ptr;
+        octx.dst.data  = (uint32_t) bufs[3].ptr;
+    } else {
+        octx.dst.data = (uint32_t) bufs[2].ptr;
+    }
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_rope(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_set_rows_req(struct htp_context * ctx, struct htp_general_req * req, struct dspqueue_buffer * bufs) {
+    struct dspqueue_buffer rsp_bufs[1];
+
+    // We had written to the output buffer, we'd also need to flush it
+    rsp_bufs[0].fd     = bufs[2].fd;
+    rsp_bufs[0].ptr    = bufs[2].ptr;
+    rsp_bufs[0].offset = bufs[2].offset;
+    rsp_bufs[0].size   = bufs[2].size;
+    rsp_bufs[0].flags  = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                         DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT);  // Invalidate CPU
+
+    // Setup Op context
+    struct htp_ops_context octx = { 0 };
+    octx.ctx                    = ctx;
+    octx.src0                   = req->src0;
+    octx.src1                   = req->src1;
+    octx.dst                    = req->dst;
+    octx.flags                  = req->flags;
+    octx.op                     = req->op;
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.dst.data  = (uint32_t) bufs[2].ptr;
+    octx.n_threads = ctx->n_threads;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_set_rows(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+    send_htp_rsp(ctx, req->op, rsp_status, rsp_bufs, 1, &prof);
+}
+
+static void proc_flash_attn_ext_req(struct htp_context *     ctx,
+                                    struct htp_general_req * req,
+                                    struct dspqueue_buffer * bufs,
+                                    uint32_t                 n_bufs) {
+    // Setup Op context
+    struct htp_ops_context octx;
+    memset(&octx, 0, sizeof(octx));
+
+    octx.ctx   = ctx;
+    octx.n_threads = ctx->n_threads;
+
+    octx.src0  = req->src0;
+    octx.src1  = req->src1;
+    octx.src2  = req->src2;
+    octx.src3  = req->src3;
+    octx.src4  = req->src4;
+    octx.dst   = req->dst;
+    octx.flags = req->flags;
+    octx.op    = req->op;
+
+    memcpy(octx.op_params, req->op_params, sizeof(octx.op_params));
+
+    // Update data pointers
+    octx.src0.data = (uint32_t) bufs[0].ptr;
+    octx.src1.data = (uint32_t) bufs[1].ptr;
+    octx.src2.data = (uint32_t) bufs[2].ptr;
+
+    int last_buf = 3;
+
+    if (octx.src3.ne[0]) {
+        octx.src3.data = (uint32_t) bufs[last_buf++].ptr; // mask is valid
+    }
+
+    if (octx.src4.ne[0]) {
+        octx.src4.data = (uint32_t) bufs[last_buf++].ptr; // sinks is valid
+    }
+
+    octx.dst.data = (uint32_t) bufs[last_buf].ptr;
+
+    struct profile_data prof;
+    profile_start(&prof);
+
+    uint32_t rsp_status = HTP_STATUS_INTERNAL_ERR;
+    if (vtcm_acquire(ctx) == AEE_SUCCESS) {
+        rsp_status = op_flash_attn_ext(&octx);
+        vtcm_release(ctx);
+    }
+
+    profile_stop(&prof);
+
+    struct dspqueue_buffer rsp_buf = bufs[last_buf];
+    rsp_buf.flags = (DSPQUEUE_BUFFER_FLAG_FLUSH_SENDER |         // Flush HTP
+                     DSPQUEUE_BUFFER_FLAG_INVALIDATE_RECIPIENT); // Invalidate CPU
+
+    send_htp_rsp(ctx, req->op, rsp_status, &bufs[last_buf], 1, &prof);
+}
+
+static void htp_packet_callback(dspqueue_t queue, int error, void * context) {
+    struct htp_context * ctx = (struct htp_context *) context;
+
+    // Repeatedly read packets from the queue until it's empty. We don't
+    // necessarily get a separate callback for each packet, and new packets
+    // may arrive while we're processing the previous one. This ensures we
+    // keep the DSP busy as much as possible and avoid waiting for the CPU.
+
+    while (1) {
+        struct htp_general_req req;
+        uint32_t               req_size;
+
+        struct dspqueue_buffer bufs[HTP_MAX_PACKET_BUFFERS];
+        uint32_t               n_bufs;
+        uint32_t               flags;
+
+        // Read packet from queue
+        int err = dspqueue_read_noblock(queue, &flags,
+                                        HTP_MAX_PACKET_BUFFERS,  // Maximum number of buffer references
+                                        &n_bufs,                 // Number of buffer references
+                                        bufs,                    // Buffer references
+                                        sizeof(req),             // Max message length
+                                        &req_size,               // Message length
+                                        (uint8_t *) &req);       // Message
+
+        if (err == AEE_EWOULDBLOCK) {
+            // Consumed all packets available for now
+            return;
+        }
+
+        if (err != 0) {
+            FARF(ERROR, "dspqueue_read_noblock failed: 0x%08x", (unsigned) err);
+            return;
+        }
+
+        if (req_size != sizeof(req)) {
+            FARF(ERROR, "Invalid request size");
+            continue;
+        }
+
+        if (req.flags & HTP_OPFLAGS_EARLY_WAKEUP) {
+            // Host wants early notification
+            dspqueue_write_early_wakeup_noblock(ctx->queue, 10, 0);
+        }
+
+        // Process packet based on its message type
+        switch (req.op) {
+            case HTP_OP_MUL_MAT:
+                if (n_bufs != 3) {
+                    FARF(ERROR, "Bad matmul-req buffer list");
+                    continue;
+                }
+                proc_matmul_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_MUL_MAT_ID:
+                if (n_bufs != 4) {
+                    FARF(ERROR, "Bad matmul-id-req buffer list");
+                    continue;
+                }
+                proc_matmul_id_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_MUL:
+            case HTP_OP_ADD:
+            case HTP_OP_SUB:
+            case HTP_OP_DIV:
+                if (n_bufs != 3) {
+                    FARF(ERROR, "Bad binary-req buffer list");
+                    continue;
+                }
+                proc_binary_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_RMS_NORM:
+            case HTP_OP_SCALE:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad unary-req buffer list");
+                    continue;
+                }
+
+                proc_unary_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_SQR:
+            case HTP_OP_SQRT:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad unary-req buffer list");
+                    continue;
+                }
+
+                proc_unary_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_SUM_ROWS:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad unary-req buffer list");
+                    continue;
+                }
+
+                proc_sum_rows_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_UNARY_SILU:
+            case HTP_OP_UNARY_GELU:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad act-req buffer list");
+                    continue;
+                }
+                proc_activations_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_GLU_SWIGLU:
+            case HTP_OP_GLU_SWIGLU_OAI:
+            case HTP_OP_SOFTMAX:
+            case HTP_OP_GLU_GEGLU:
+                if ((n_bufs != 2) && (n_bufs != 3)) {
+                    FARF(ERROR, "Bad act-req buffer list");
+                    continue;
+                }
+                proc_activations_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_ADD_ID:
+                if (n_bufs != 4) {
+                    FARF(ERROR, "Bad add-id-req buffer list");
+                    continue;
+                }
+                proc_add_id_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_ROPE:
+                if ((n_bufs != 3) && (n_bufs != 4)) {
+                    FARF(ERROR, "Bad rope-req buffer list");
+                    continue;
+                }
+                proc_rope_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_FLASH_ATTN_EXT:
+                if (!(n_bufs >= 4 && n_bufs <= 6)) {
+                    FARF(ERROR, "Bad flash-attn-ext-req buffer list");
+                    continue;
+                }
+                proc_flash_attn_ext_req(ctx, &req, bufs, n_bufs);
+                break;
+
+            case HTP_OP_SET_ROWS:
+                if (n_bufs != 3) {
+                    FARF(ERROR, "Bad set-rows-req buffer list");
+                    continue;
+                }
+                proc_set_rows_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_GET_ROWS:
+                if (n_bufs != 3) {
+                    FARF(ERROR, "Bad get-rows-req buffer list");
+                    continue;
+                }
+                proc_get_rows_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_CPY:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad cpy-req buffer list");
+                    continue;
+                }
+                proc_cpy_req(ctx, &req, bufs);
+                break;
+
+            case HTP_OP_ARGSORT:
+                if (n_bufs != 2) {
+                    FARF(ERROR, "Bad argsort-req buffer list");
+                    continue;
+                }
+                proc_argsort_req(ctx, &req, bufs);
+                break;
+
+            default:
+                FARF(ERROR, "Unknown Op %u", req.op);
+                break;
+        }
+    }
+}