drm/etnaviv: extend etnaviv_gpu_cmdbuf_new(..) with nr_pmrs

This commits extends etnaviv_gpu_cmdbuf_new(..) to define the number
of struct etnaviv_perfmon elements gets used.

Changes from v1 -> v2:
- make use of goto as requested by Lucas

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

4 files changed, 17 insertions, 4 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
index 633e0f07cbac..66ac79558bbd 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
@@ -19,6 +19,7 @@
 #include "etnaviv_cmdbuf.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_mmu.h"
+#include "etnaviv_perfmon.h"
 
 #define SUBALLOC_SIZE           SZ_256K
 #define SUBALLOC_GRANULE        SZ_4K
@@ -87,9 +88,10 @@ void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc)
 
 struct etnaviv_cmdbuf *
 etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
-                   size_t nr_bos)
+                   size_t nr_bos, size_t nr_pmrs)
 {
         struct etnaviv_cmdbuf *cmdbuf;
+        struct etnaviv_perfmon_request *pmrs;
         size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
                                  sizeof(*cmdbuf));
         int granule_offs, order, ret;
@@ -98,6 +100,12 @@ etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
         if (!cmdbuf)
                 return NULL;
 
+        sz = sizeof(*pmrs) * nr_pmrs;
+        pmrs = kzalloc(sz, GFP_KERNEL);
+        if (!pmrs)
+                goto out_free_cmdbuf;
+
+        cmdbuf->pmrs = pmrs;
         cmdbuf->suballoc = suballoc;
         cmdbuf->size = size;
 
@@ -124,6 +132,10 @@ retry:
         cmdbuf->vaddr = suballoc->vaddr + cmdbuf->suballoc_offset;
 
         return cmdbuf;
+
+out_free_cmdbuf:
+        kfree(cmdbuf);
+        return NULL;
 }
 
 void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
@@ -139,6 +151,7 @@ void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
         suballoc->free_space = 1;
         mutex_unlock(&suballoc->lock);
         wake_up_all(&suballoc->free_event);
+        kfree(cmdbuf->pmrs);
         kfree(cmdbuf);
 }
 
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
index 1b549f0d59a0..b6348b9f2a9d 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
@@ -53,7 +53,7 @@ void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc);
 
 struct etnaviv_cmdbuf *
 etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
-                   size_t nr_bos);
+                   size_t nr_bos, size_t nr_pmrs);
 void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
 
 u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 026ef4e02f85..41abdfc7cb00 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -350,7 +350,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
         stream = kvmalloc_array(1, args->stream_size, GFP_KERNEL);
         cmdbuf = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc,
                                     ALIGN(args->stream_size, 8) + 8,
-                                    args->nr_bos);
+                                    args->nr_bos, 0);
         if (!bos || !relocs || !stream || !cmdbuf) {
                 ret = -ENOMEM;
                 goto err_submit_cmds;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 8d961bc238d4..7b61071af0de 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -726,7 +726,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
         }
 
         /* Create buffer: */
-        gpu->buffer = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, PAGE_SIZE, 0);
+        gpu->buffer = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, PAGE_SIZE, 0, 0);
         if (!gpu->buffer) {
                 ret = -ENOMEM;
                 dev_err(gpu->dev, "could not create command buffer\n");