From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: gregkh@linuxfoundation.org
Cc: kernel-list@raspberrypi.com, laurent.pinchart@ideasonboard.com,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Subject: [PATCH v2 40/47] staging: vchi: Get rid of vchi_bulk_queue_receive()
Date: Mon, 29 Jun 2020 17:09:38 +0200 [thread overview]
Message-ID: <20200629150945.10720-41-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20200629150945.10720-1-nsaenzjulienne@suse.de>
Its vchiq counterpart, vchiq_bulk_receive() is only used by vchi. We can
then merge both functions by moving vchi_bulk_queue_receive()'s retry
mechanism into vchiq_bulk_receive() and let services call the later.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
.../vc04_services/interface/vchi/vchi.h | 7 ----
.../interface/vchiq_arm/vchiq_arm.c | 42 ++++++++++++-------
.../interface/vchiq_arm/vchiq_shim.c | 38 -----------------
.../vc04_services/vchiq-mmal/mmal-vchiq.c | 20 ++++-----
4 files changed, 37 insertions(+), 70 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h
index d24e7027c08f..ca20b99122f2 100644
--- a/drivers/staging/vc04_services/interface/vchi/vchi.h
+++ b/drivers/staging/vc04_services/interface/vchi/vchi.h
@@ -58,13 +58,6 @@ extern int32_t vchi_held_msg_release(unsigned handle, struct vchiq_header *messa
* Global bulk API
*****************************************************************************/
-// Routine to prepare interface for a transfer from the other side
-extern int32_t vchi_bulk_queue_receive(unsigned handle,
- void *data_dst,
- uint32_t data_size,
- enum vchiq_bulk_mode mode,
- void *transfer_handle);
-
// Routine to queue up data ready for transfer to the other (once they have signalled they are ready)
extern int32_t vchi_bulk_queue_transmit(unsigned handle,
const void *data_src,
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 1a050ac116fa..1165824711a5 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -374,24 +374,36 @@ vchiq_bulk_transmit(unsigned int handle, const void *data,
}
EXPORT_SYMBOL(vchiq_bulk_transmit);
-enum vchiq_status
-vchiq_bulk_receive(unsigned int handle, void *data,
- unsigned int size, void *userdata, enum vchiq_bulk_mode mode)
+enum vchiq_status vchiq_bulk_receive(unsigned int handle, void *data,
+ unsigned int size, void *userdata,
+ enum vchiq_bulk_mode mode)
{
enum vchiq_status status;
- switch (mode) {
- case VCHIQ_BULK_MODE_NOCALLBACK:
- case VCHIQ_BULK_MODE_CALLBACK:
- status = vchiq_bulk_transfer(handle, data, size, userdata,
- mode, VCHIQ_BULK_RECEIVE);
- break;
- case VCHIQ_BULK_MODE_BLOCKING:
- status = vchiq_blocking_bulk_transfer(handle,
- (void *)data, size, VCHIQ_BULK_RECEIVE);
- break;
- default:
- return VCHIQ_ERROR;
+ while (1) {
+ switch (mode) {
+ case VCHIQ_BULK_MODE_NOCALLBACK:
+ case VCHIQ_BULK_MODE_CALLBACK:
+ status = vchiq_bulk_transfer(handle, data, size, userdata,
+ mode, VCHIQ_BULK_RECEIVE);
+ break;
+ case VCHIQ_BULK_MODE_BLOCKING:
+ status = vchiq_blocking_bulk_transfer(handle,
+ (void *)data, size, VCHIQ_BULK_RECEIVE);
+ break;
+ default:
+ return VCHIQ_ERROR;
+ }
+
+ /*
+ * vchiq_*_bulk_transfer() may return VCHIQ_RETRY, so we need
+ * to implement a retry mechanism since this function is
+ * supposed to block until queued
+ */
+ if (status != VCHIQ_RETRY)
+ break;
+
+ msleep(1);
}
return status;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
index 52654123463d..f69936a9eb29 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
@@ -31,44 +31,6 @@ int vchi_queue_kernel_message(unsigned handle, void *data, unsigned int size)
}
EXPORT_SYMBOL(vchi_queue_kernel_message);
-/***********************************************************
- * Name: vchi_bulk_queue_receive
- *
- * Arguments: VCHI_BULK_HANDLE_T handle,
- * void *data_dst,
- * const uint32_t data_size,
- * enum vchi_flags flags
- * void *bulk_handle
- *
- * Description: Routine to setup a rcv buffer
- *
- * Returns: int32_t - success == 0
- *
- ***********************************************************/
-int32_t vchi_bulk_queue_receive(unsigned handle, void *data_dst,
- uint32_t data_size, enum vchiq_bulk_mode mode,
- void *bulk_handle)
-{
- enum vchiq_status status;
-
- while (1) {
- status = vchiq_bulk_receive(handle, data_dst, data_size,
- bulk_handle, mode);
- /*
- * vchiq_bulk_receive() may return VCHIQ_RETRY, so we need to
- * implement a retry mechanism since this function is supposed
- * to block until queued
- */
- if (status != VCHIQ_RETRY)
- break;
-
- msleep(1);
- }
-
- return status;
-}
-EXPORT_SYMBOL(vchi_bulk_queue_receive);
-
/***********************************************************
* Name: vchi_bulk_queue_transmit
*
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 2c5027c1f0bb..4c6a6f4d89fc 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -279,7 +279,7 @@ static void buffer_work_cb(struct work_struct *work)
* VCHI will allow up to 4 bulk receives to be scheduled before blocking.
* If we block in the service_callback context then we can't process the
* VCHI_CALLBACK_BULK_RECEIVED message that would otherwise allow the blocked
- * vchi_bulk_queue_receive() call to complete.
+ * vchiq_bulk_receive() call to complete.
*/
static void buffer_to_host_work_cb(struct work_struct *work)
{
@@ -295,19 +295,19 @@ static void buffer_to_host_work_cb(struct work_struct *work)
len = 8;
/* queue the bulk submission */
vchi_service_use(instance->service_handle);
- ret = vchi_bulk_queue_receive(instance->service_handle,
- msg_context->u.bulk.buffer->buffer,
- /* Actual receive needs to be a multiple
- * of 4 bytes
- */
- (len + 3) & ~3,
- VCHIQ_BULK_MODE_CALLBACK,
- msg_context);
+ ret = vchiq_bulk_receive(instance->service_handle,
+ msg_context->u.bulk.buffer->buffer,
+ /* Actual receive needs to be a multiple
+ * of 4 bytes
+ */
+ (len + 3) & ~3,
+ msg_context,
+ VCHIQ_BULK_MODE_CALLBACK);
vchi_service_release(instance->service_handle);
if (ret != 0)
- pr_err("%s: ctx: %p, vchi_bulk_queue_receive failed %d\n",
+ pr_err("%s: ctx: %p, vchiq_bulk_receive failed %d\n",
__func__, msg_context, ret);
}
--
2.27.0
next prev parent reply other threads:[~2020-06-29 19:21 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 15:08 [PATCH v2 00/47] staging: vchiq: Getting rid of the vchi/vchiq split Nicolas Saenz Julienne
2020-06-29 15:08 ` [PATCH v2 01/47] staging: mmal-vchiq: Make timeout a defined parameter Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 02/47] staging: mmal-vchiq: Make a mmal_buf struct for passing parameters Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 03/47] staging: mmal-vchiq: Fixup vchiq-mmal include ordering Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 04/47] staging: mmal-vchiq: Fix client_component for 64 bit kernel Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 05/47] staging: mmal-vchiq: Always return the param size from param_get Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 06/47] staging: mmal-vchiq: If the VPU returns an error, don't negate it Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 07/47] staging: mmal-vchiq: Fix formatting errors in mmal_parameters.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 08/47] staging: vchiq_arm: Add a matching unregister call Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 09/47] staging: vchi: Get rid of all useless callback reasons Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 10/47] staging: vchi: Get rid of vchi_msg_peek() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 11/47] staging: vchi: Get rid of struct vchi_instance_handle Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 12/47] staging: vchi: Unify struct shim_service and struct vchi_service_handle Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 13/47] staging: vc04_services: bcm2835-audio: Use vchi_msg_hold() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 14/47] staging: vchi: Get rid of vchi_msg_dequeue() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 15/47] staging: vchi_common: Get rid of all unused definitions Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 16/47] staging: vchi: Get rid of unnecessary defines Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 17/47] staging: vc04_services: Get rid of vchi_cfg.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 18/47] staging: vchi: Get rid of flags argument in vchi_msg_hold() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 19/47] staging: vchi: Use enum vchiq_bulk_mode instead of vchi's transmission flags Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 20/47] staging: vchi: Use vchiq's enum vchiq_reason Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 21/47] staging: vchi: Get rid of effect less expression Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 22/47] staging: vchiq: Introduce vchiq_validate_params() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 23/47] staging: vchiq: Move message queue into struct vchiq_service Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 24/47] staging: vchiq: Get rid of vchiq_util.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 25/47] staging: vchi: Expose struct vchi_service Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 26/47] staging: vchiq: Export vchiq_get_service_userdata() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 27/47] staging: vchiq: Export vchiq_msg_queue_push Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 28/47] staging: vchi: Get rid of vchiq_shim's message callback Nicolas Saenz Julienne
2020-08-28 14:31 ` Jacopo Mondi
2020-08-31 18:46 ` Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 29/47] staging: vchiq: Don't use a typedef for vchiq_callback Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 30/47] staging: vchi: Use struct vchiq_service_params Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 31/47] staging: vchi: Get rid of struct vchi_service Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 32/47] staging: vchiq: Pass vchiq's message when holding a message Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 33/47] staging: vchi: Rework vchi_msg_hold() to match vchiq_msg_hold() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 34/47] staging: vchiq: Unify fourcc definition mechanisms Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 35/47] staging: vchi: Get rid of struct vchiq_instance forward declaration Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 36/47] staging: vchi: Don't include vchiq_core.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 37/47] staging: vchiq: Get rid of unnecessary definitions in vchiq_if.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 38/47] staging: vchiq: Make vchiq_add_service() local Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 39/47] staging: vchiq: Move definitions only used by core into core header Nicolas Saenz Julienne
2020-06-29 15:09 ` Nicolas Saenz Julienne [this message]
2020-06-29 15:09 ` [PATCH v2 41/47] staging: vchi: Get rid of vchi_bulk_queue_transmit() Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 42/47] staging: vchi: Move vchi_queue_kernel_message() into vchiq Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 43/47] staging: vchiq: Get rid of vchi Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 44/47] staging: vchiq: Move conditional barrier definition into vchiq_core.h Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 45/47] staging: vchiq: Use vchiq.h as the main header file for services Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 46/47] staging: vchiq: Move defines into core header Nicolas Saenz Julienne
2020-06-29 15:09 ` [PATCH v2 47/47] staging: vchiq: Move vchiq.h into include directory Nicolas Saenz Julienne
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