clear-pkgs-linux-iot-lts2018/1013-ASoC-Intel-Skylake-Remove-memory-available-check.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cezary Rojewski <cezary.rojewski@intel.com>
Date: Mon, 18 Feb 2019 18:57:09 +0100
Subject: [PATCH] ASoC: Intel: Skylake: Remove memory available check.

Current memory availability check is a stub, while actual memory
management takes place in firmware. Leave this task to firmware entirely
and remove redundant code.

Change-Id: Ief33515bb03a856c5b7ad1adc6ac261b0cb744b1
Tracked-On: OAM-76478
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Lewandowski, Gustaw <gustaw.lewandowski@intel.com>
Tested-by: gkblditp <gkblditp@intel.com>
---
 sound/soc/intel/skylake/skl-topology.c | 61 --------------------------
 sound/soc/intel/skylake/skl.h          |  6 ---
 2 files changed, 67 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index e58857876416..805c7c1aea30 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -386,51 +386,6 @@ int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w,
 	}
 }
 
-/*
- * Each pipelines needs memory to be allocated. Check if we have free memory
- * from available pool.
- */
-static bool skl_is_pipe_mem_avail(struct skl *skl,
-				struct skl_module_cfg *mconfig)
-{
-	struct skl_sst *ctx = skl->skl_sst;
-
-	if (skl->resource.mem + mconfig->pipe->memory_pages >
-				skl->resource.max_mem) {
-		dev_err(ctx->dev,
-				"%s: module_id %d instance %d\n", __func__,
-				mconfig->id.module_id,
-				mconfig->id.instance_id);
-		dev_err(ctx->dev,
-				"exceeds ppl memory available %d mem %d\n",
-				skl->resource.max_mem, skl->resource.mem);
-		return false;
-	} else {
-		return true;
-	}
-}
-
-/*
- * Add the mem to the mem pool. This is freed when pipe is deleted.
- * Note: DSP does actual memory management we only keep track for complete
- * pool
- */
-static void skl_tplg_alloc_pipe_mem(struct skl *skl,
-				struct skl_module_cfg *mconfig)
-{
-	skl->resource.mem += mconfig->pipe->memory_pages;
-}
-
-/*
- * Free the memory when tearing down
- */
-static void
-skl_tplg_free_pipe_mem(struct skl *skl, struct skl_module_cfg *mconfig)
-{
-	skl->resource.mem -= mconfig->pipe->memory_pages;
-}
-
-
 static void skl_dump_mconfig(struct skl_sst *ctx,
 					struct skl_module_cfg *mcfg)
 {
@@ -1204,7 +1159,6 @@ skl_tplg_get_pipe_config(struct skl *skl, struct skl_module_cfg *mconfig)
 /*
  * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we
  * need create the pipeline. So we do following:
- *   - check the resources
  *   - Create the pipeline
  *   - Initialize the modules in pipeline
  *   - finally bind all modules together
@@ -1235,9 +1189,6 @@ static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 	if (ret < 0)
 		return ret;
 
-	if (!skl_is_pipe_mem_avail(skl, mconfig))
-		return -ENOMEM;
-
 	/*
 	 * Create a list of modules for pipe.
 	 * This list contains modules from source to sink
@@ -1246,8 +1197,6 @@ static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 	if (ret < 0)
 		return ret;
 
-	skl_tplg_alloc_pipe_mem(skl, mconfig);
-
 	/* Init all pipe modules from source to sink */
 	ret = skl_tplg_init_pipe_modules(skl, s_pipe);
 	if (ret < 0)
@@ -1796,7 +1745,6 @@ static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w,
 
 /*
  * in the Post-PMD event of mixer we need to do following:
- *   - Free the mem used
  *   - Unbind the modules within the pipeline
  *   - Delete the pipeline (modules are not required to be explicitly
  *     deleted, pipeline delete is enough here
@@ -1814,8 +1762,6 @@ static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 	if (s_pipe->state == SKL_PIPE_INVALID)
 		return -EINVAL;
 
-	skl_tplg_free_pipe_mem(skl, mconfig);
-
 	list_for_each_entry(w_module, &s_pipe->w_list, node) {
 		if (list_empty(&skl->bind_list))
 			break;
@@ -4356,8 +4302,6 @@ void skl_cleanup_resources(struct skl *skl)
 	if (!card || !card->instantiated)
 		return;
 
-	skl->resource.mem = 0;
-
 	list_for_each_entry(w, &card->widgets, list) {
 		if (is_skl_dsp_widget_type(w, ctx->dev) && w->priv != NULL)
 			skl_clear_pin_config(soc_component, w);
@@ -5331,9 +5275,6 @@ static void skl_tplg_set_pipe_type(struct skl *skl, struct skl_pipe *pipe)
 		pipe->passthru = false;
 }
 
-/* This will be read from topology manifest, currently defined here */
-#define SKL_FW_MAX_MEM 1000000
-
 /*
  * SKL topology init routine
  */
@@ -5368,8 +5309,6 @@ int skl_tplg_init(struct snd_soc_component *component, struct hdac_bus *bus)
 		return -EINVAL;
 	}
 
-	skl->resource.max_mem = SKL_FW_MAX_MEM;
-
 	skl->tplg = fw;
 	ret = skl_tplg_create_pipe_widget_list(component);
 	if (ret < 0)
diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h
index bafc0686c525..c900bdf691e5 100644
--- a/sound/soc/intel/skylake/skl.h
+++ b/sound/soc/intel/skylake/skl.h
@@ -67,11 +67,6 @@ static inline void skl_virt_device_unregister(struct skl *skl)
 }
 #endif
 
-struct skl_dsp_resource {
-	u32 max_mem;
-	u32 mem;
-};
-
 struct skl_debug;
 
 struct skl_astate_param {
@@ -151,7 +146,6 @@ struct skl {
 	struct nhlt_acpi_table *nhlt; /* nhlt ptr */
 	struct skl_sst *skl_sst; /* sst skl ctx */
 
-	struct skl_dsp_resource resource;
 	struct list_head ppl_list;
 	struct list_head bind_list;
 
-- 
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