* [PATCH v2 0/2] Chunk splitting of spi transfers
@ 2018-03-10 15:50 Meghana Madhyastha
2018-03-10 15:51 ` [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem Meghana Madhyastha
2018-03-10 15:52 ` [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer Meghana Madhyastha
0 siblings, 2 replies; 6+ messages in thread
From: Meghana Madhyastha @ 2018-03-10 15:50 UTC (permalink / raw)
To: Mark Brown, Daniel Vetter, linux-spi, Noralf Trønnes,
Sean Paul, dri-devel, kernel
-Call spi_split_transfers_maxsize in __spi_pump_messages
to split large chunks for spi dma transfers.
-Remove chunk splitting in the tinydrm spi helper (as now the core is
handling the chunk splitting).
Changes in v2:
-Change the order of the two patches in the patchset.
-Undo the spurious blank line deletions
-Remove bcm2835_spi_transfer_one_message and add spi_split_transfers_maxsize
in __spi_pump_messages. This solves the DMA time out error.
Meghana Madhyastha (2):
spi: Split spi message into chunks of <65535 in the spi subsystem
drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer
drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 48 ++++----------------------
drivers/gpu/drm/tinydrm/mipi-dbi.c | 10 ++----
drivers/spi/spi-bcm2835.c | 15 +-------
drivers/spi/spi.c | 8 +++++
4 files changed, 17 insertions(+), 64 deletions(-)
--
2.11.0
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem
2018-03-10 15:50 [PATCH v2 0/2] Chunk splitting of spi transfers Meghana Madhyastha
@ 2018-03-10 15:51 ` Meghana Madhyastha
2018-03-10 19:12 ` Geert Uytterhoeven
2018-03-11 13:33 ` Noralf Trønnes
2018-03-10 15:52 ` [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer Meghana Madhyastha
1 sibling, 2 replies; 6+ messages in thread
From: Meghana Madhyastha @ 2018-03-10 15:51 UTC (permalink / raw)
To: Mark Brown, Daniel Vetter, linux-spi, Noralf Trønnes,
Sean Paul, dri-devel
Split spi messages into chunks of <65535 in the spi subsystem and remove the message
length warning in bcm2835_spi_can_dma. This is so that the messages can be transferred
via dma and that the tinydrm drivers need not split it.
Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
---
drivers/spi/spi-bcm2835.c | 13 -------------
drivers/spi/spi.c | 8 ++++++++
2 files changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index f35cc10772f6..0dcc45f158b8 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -365,19 +365,6 @@ static bool bcm2835_spi_can_dma(struct spi_master *master,
if (tfr->len < BCM2835_SPI_DMA_MIN_LENGTH)
return false;
- /* BCM2835_SPI_DLEN has defined a max transfer size as
- * 16 bit, so max is 65535
- * we can revisit this by using an alternative transfer
- * method - ideally this would get done without any more
- * interaction...
- */
- if (tfr->len > 65535) {
- dev_warn_once(&spi->dev,
- "transfer size of %d too big for dma-transfer\n",
- tfr->len);
- return false;
- }
-
/* if we run rx/tx_buf with word aligned addresses then we are OK */
if ((((size_t)tfr->rx_buf & 3) == 0) &&
(((size_t)tfr->tx_buf & 3) == 0))
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index b33a727a0158..e8e2c366a93b 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1242,6 +1242,14 @@ static void __spi_pump_messages(struct spi_controller *ctlr, bool in_kthread)
trace_spi_message_start(ctlr->cur_msg);
if (ctlr->prepare_message) {
+ gfp_t gfp_flags = GFP_KERNEL | GFP_DMA;
+ size_t max_transfer_size = 32000;
+ ret = spi_split_transfers_maxsize(ctlr, ctlr->cur_msg, max_transfer_size, gfp_flags);
+ if (ret) {
+ dev_err(&ctlr->dev,
+ "failed to split message\n");
+ goto out;
+ }
ret = ctlr->prepare_message(ctlr, ctlr->cur_msg);
if (ret) {
dev_err(&ctlr->dev, "failed to prepare message: %d\n",
--
2.11.0
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^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer
2018-03-10 15:50 [PATCH v2 0/2] Chunk splitting of spi transfers Meghana Madhyastha
2018-03-10 15:51 ` [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem Meghana Madhyastha
@ 2018-03-10 15:52 ` Meghana Madhyastha
2018-03-11 13:35 ` Noralf Trønnes
1 sibling, 1 reply; 6+ messages in thread
From: Meghana Madhyastha @ 2018-03-10 15:52 UTC (permalink / raw)
To: Mark Brown, Daniel Vetter, linux-spi, Noralf Trønnes,
Sean Paul, dri-devel
Remove chunk splitting in tinydrm_spi_transfer in tinydrm-helpers as the spi core will split
a buffer into max_dma_len chunks for the spi controller driver to handle, automatic byte
swapping in tinydrm_spi_transfer as it doesn't have users.
Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
---
drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 48 ++++----------------------
drivers/gpu/drm/tinydrm/mipi-dbi.c | 10 ++----
drivers/spi/spi-bcm2835.c | 2 +-
3 files changed, 9 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
index bf96072d1b97..6064099e8e63 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
@@ -452,62 +452,26 @@ int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz,
struct spi_transfer tr = {
.bits_per_word = bpw,
.speed_hz = speed_hz,
+ .tx_buf = buf,
+ .len = len
};
struct spi_message m;
- u16 *swap_buf = NULL;
size_t max_chunk;
- size_t chunk;
- int ret = 0;
- if (WARN_ON_ONCE(bpw != 8 && bpw != 16))
- return -EINVAL;
-
- max_chunk = tinydrm_spi_max_transfer_size(spi, 0);
+ max_chunk = SIZE_MAX;
if (drm_debug & DRM_UT_DRIVER)
pr_debug("[drm:%s] bpw=%u, max_chunk=%zu, transfers:\n",
- __func__, bpw, max_chunk);
-
- if (bpw == 16 && !tinydrm_spi_bpw_supported(spi, 16)) {
- tr.bits_per_word = 8;
- if (tinydrm_machine_little_endian()) {
- swap_buf = kmalloc(min(len, max_chunk), GFP_KERNEL);
- if (!swap_buf)
- return -ENOMEM;
- }
- }
+ __func__, bpw, max_chunk);
spi_message_init(&m);
if (header)
spi_message_add_tail(header, &m);
spi_message_add_tail(&tr, &m);
- while (len) {
- chunk = min(len, max_chunk);
-
- tr.tx_buf = buf;
- tr.len = chunk;
-
- if (swap_buf) {
- const u16 *buf16 = buf;
- unsigned int i;
-
- for (i = 0; i < chunk / 2; i++)
- swap_buf[i] = swab16(buf16[i]);
-
- tr.tx_buf = swap_buf;
- }
-
- buf += chunk;
- len -= chunk;
-
- tinydrm_dbg_spi_message(spi, &m);
- ret = spi_sync(spi, &m);
- if (ret)
- return ret;
- }
+ tinydrm_dbg_spi_message(spi, &m);
- return 0;
+ return spi_sync(spi, &m);
}
EXPORT_SYMBOL(tinydrm_spi_transfer);
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index 75dd65c57e74..c8af2d65c2ad 100644
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -886,15 +886,9 @@ static int mipi_dbi_typec3_command(struct mipi_dbi *mipi, u8 cmd,
int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
struct gpio_desc *dc)
{
- size_t tx_size = tinydrm_spi_max_transfer_size(spi, 0);
struct device *dev = &spi->dev;
int ret;
- if (tx_size < 16) {
- DRM_ERROR("SPI transmit buffer too small: %zu\n", tx_size);
- return -EINVAL;
- }
-
/*
* Even though it's not the SPI device that does DMA (the master does),
* the dma mask is necessary for the dma_alloc_wc() in
@@ -924,8 +918,8 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
mipi->swap_bytes = true;
} else {
mipi->command = mipi_dbi_typec1_command;
- mipi->tx_buf9_len = tx_size;
- mipi->tx_buf9 = devm_kmalloc(dev, tx_size, GFP_KERNEL);
+ mipi->tx_buf9_len = SZ_16K;
+ mipi->tx_buf9 = devm_kmalloc(dev, mipi->tx_buf9_len, GFP_KERNEL);
if (!mipi->tx_buf9)
return -ENOMEM;
}
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 0dcc45f158b8..2fd650891c07 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -448,7 +448,7 @@ static void bcm2835_dma_init(struct spi_master *master, struct device *dev)
/* all went well, so set can_dma */
master->can_dma = bcm2835_spi_can_dma;
- master->max_dma_len = 65535; /* limitation by BCM2835_SPI_DLEN */
+ master->max_dma_len = 65528; /* limitation by BCM2835_SPI_DLEN */
/* need to do TX AND RX DMA, so we need dummy buffers */
master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX;
--
2.11.0
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^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem
2018-03-10 15:51 ` [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem Meghana Madhyastha
@ 2018-03-10 19:12 ` Geert Uytterhoeven
2018-03-11 13:33 ` Noralf Trønnes
1 sibling, 0 replies; 6+ messages in thread
From: Geert Uytterhoeven @ 2018-03-10 19:12 UTC (permalink / raw)
To: Meghana Madhyastha; +Cc: DRI Development, linux-spi, Mark Brown, Daniel Vetter
Hi Meghana,
On Sat, Mar 10, 2018 at 4:51 PM, Meghana Madhyastha
<meghana.madhyastha@gmail.com> wrote:
> Split spi messages into chunks of <65535 in the spi subsystem and remove the message
> length warning in bcm2835_spi_can_dma. This is so that the messages can be transferred
> via dma and that the tinydrm drivers need not split it.
>
> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
Thanks for your patch!
> --- a/drivers/spi/spi.c
> +++ b/drivers/spi/spi.c
> @@ -1242,6 +1242,14 @@ static void __spi_pump_messages(struct spi_controller *ctlr, bool in_kthread)
> trace_spi_message_start(ctlr->cur_msg);
>
> if (ctlr->prepare_message) {
> + gfp_t gfp_flags = GFP_KERNEL | GFP_DMA;
> + size_t max_transfer_size = 32000;
Do you really want to impose this arbitrary limit (which BTW doesn't match
the value in the patch description) to each and every SPI controller driver?
> + ret = spi_split_transfers_maxsize(ctlr, ctlr->cur_msg, max_transfer_size, gfp_flags);
> + if (ret) {
> + dev_err(&ctlr->dev,
> + "failed to split message\n");
> + goto out;
> + }
> ret = ctlr->prepare_message(ctlr, ctlr->cur_msg);
> if (ret) {
> dev_err(&ctlr->dev, "failed to prepare message: %d\n",
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem
2018-03-10 15:51 ` [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem Meghana Madhyastha
2018-03-10 19:12 ` Geert Uytterhoeven
@ 2018-03-11 13:33 ` Noralf Trønnes
1 sibling, 0 replies; 6+ messages in thread
From: Noralf Trønnes @ 2018-03-11 13:33 UTC (permalink / raw)
To: Meghana Madhyastha, Mark Brown, Daniel Vetter, linux-spi,
Sean Paul, dri-devel
Den 10.03.2018 16.51, skrev Meghana Madhyastha:
> Split spi messages into chunks of <65535 in the spi subsystem and remove the message
> length warning in bcm2835_spi_can_dma. This is so that the messages can be transferred
> via dma and that the tinydrm drivers need not split it.
>
> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
> ---
> drivers/spi/spi-bcm2835.c | 13 -------------
> drivers/spi/spi.c | 8 ++++++++
> 2 files changed, 8 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
> index f35cc10772f6..0dcc45f158b8 100644
> --- a/drivers/spi/spi-bcm2835.c
> +++ b/drivers/spi/spi-bcm2835.c
> @@ -365,19 +365,6 @@ static bool bcm2835_spi_can_dma(struct spi_master *master,
> if (tfr->len < BCM2835_SPI_DMA_MIN_LENGTH)
> return false;
>
> - /* BCM2835_SPI_DLEN has defined a max transfer size as
> - * 16 bit, so max is 65535
> - * we can revisit this by using an alternative transfer
> - * method - ideally this would get done without any more
> - * interaction...
> - */
> - if (tfr->len > 65535) {
> - dev_warn_once(&spi->dev,
> - "transfer size of %d too big for dma-transfer\n",
> - tfr->len);
> - return false;
> - }
> -
> /* if we run rx/tx_buf with word aligned addresses then we are OK */
> if ((((size_t)tfr->rx_buf & 3) == 0) &&
> (((size_t)tfr->tx_buf & 3) == 0))
> diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
> index b33a727a0158..e8e2c366a93b 100644
> --- a/drivers/spi/spi.c
> +++ b/drivers/spi/spi.c
> @@ -1242,6 +1242,14 @@ static void __spi_pump_messages(struct spi_controller *ctlr, bool in_kthread)
> trace_spi_message_start(ctlr->cur_msg);
>
> if (ctlr->prepare_message) {
> + gfp_t gfp_flags = GFP_KERNEL | GFP_DMA;
> + size_t max_transfer_size = 32000;
What number is this?
As Geert says, this shouldn't be in the core but in the driver callback
bcm2835_spi_prepare_message().
Noralf.
> + ret = spi_split_transfers_maxsize(ctlr, ctlr->cur_msg, max_transfer_size, gfp_flags);
> + if (ret) {
> + dev_err(&ctlr->dev,
> + "failed to split message\n");
> + goto out;
> + }
> ret = ctlr->prepare_message(ctlr, ctlr->cur_msg);
> if (ret) {
> dev_err(&ctlr->dev, "failed to prepare message: %d\n",
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer
2018-03-10 15:52 ` [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer Meghana Madhyastha
@ 2018-03-11 13:35 ` Noralf Trønnes
0 siblings, 0 replies; 6+ messages in thread
From: Noralf Trønnes @ 2018-03-11 13:35 UTC (permalink / raw)
To: Meghana Madhyastha, Mark Brown, Daniel Vetter, linux-spi,
Sean Paul, dri-devel
Den 10.03.2018 16.52, skrev Meghana Madhyastha:
> Remove chunk splitting in tinydrm_spi_transfer in tinydrm-helpers as the spi core will split
> a buffer into max_dma_len chunks for the spi controller driver to handle, automatic byte
> swapping in tinydrm_spi_transfer as it doesn't have users.
>
> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
> ---
> drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 48 ++++----------------------
> drivers/gpu/drm/tinydrm/mipi-dbi.c | 10 ++----
> drivers/spi/spi-bcm2835.c | 2 +-
> 3 files changed, 9 insertions(+), 51 deletions(-)
>
> diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
> index bf96072d1b97..6064099e8e63 100644
> --- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
> +++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
> @@ -452,62 +452,26 @@ int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz,
> struct spi_transfer tr = {
> .bits_per_word = bpw,
> .speed_hz = speed_hz,
> + .tx_buf = buf,
> + .len = len
> };
> struct spi_message m;
> - u16 *swap_buf = NULL;
> size_t max_chunk;
> - size_t chunk;
> - int ret = 0;
>
> - if (WARN_ON_ONCE(bpw != 8 && bpw != 16))
> - return -EINVAL;
> -
> - max_chunk = tinydrm_spi_max_transfer_size(spi, 0);
> + max_chunk = SIZE_MAX;
max_chunk isn't used so can be removed.
tinydrm_spi_max_transfer_size() can also be remove now.
>
> if (drm_debug & DRM_UT_DRIVER)
> pr_debug("[drm:%s] bpw=%u, max_chunk=%zu, transfers:\n",
> - __func__, bpw, max_chunk);
> -
> - if (bpw == 16 && !tinydrm_spi_bpw_supported(spi, 16)) {
> - tr.bits_per_word = 8;
> - if (tinydrm_machine_little_endian()) {
> - swap_buf = kmalloc(min(len, max_chunk), GFP_KERNEL);
> - if (!swap_buf)
> - return -ENOMEM;
> - }
> - }
> + __func__, bpw, max_chunk);
>
> spi_message_init(&m);
> if (header)
> spi_message_add_tail(header, &m);
> spi_message_add_tail(&tr, &m);
>
> - while (len) {
> - chunk = min(len, max_chunk);
> -
> - tr.tx_buf = buf;
> - tr.len = chunk;
> -
> - if (swap_buf) {
> - const u16 *buf16 = buf;
> - unsigned int i;
> -
> - for (i = 0; i < chunk / 2; i++)
> - swap_buf[i] = swab16(buf16[i]);
> -
> - tr.tx_buf = swap_buf;
> - }
> -
> - buf += chunk;
> - len -= chunk;
> -
> - tinydrm_dbg_spi_message(spi, &m);
> - ret = spi_sync(spi, &m);
> - if (ret)
> - return ret;
> - }
> + tinydrm_dbg_spi_message(spi, &m);
>
> - return 0;
> + return spi_sync(spi, &m);
> }
> EXPORT_SYMBOL(tinydrm_spi_transfer);
>
> diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> index 75dd65c57e74..c8af2d65c2ad 100644
> --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
> +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> @@ -886,15 +886,9 @@ static int mipi_dbi_typec3_command(struct mipi_dbi *mipi, u8 cmd,
> int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
> struct gpio_desc *dc)
> {
> - size_t tx_size = tinydrm_spi_max_transfer_size(spi, 0);
> struct device *dev = &spi->dev;
> int ret;
>
> - if (tx_size < 16) {
> - DRM_ERROR("SPI transmit buffer too small: %zu\n", tx_size);
> - return -EINVAL;
> - }
> -
> /*
> * Even though it's not the SPI device that does DMA (the master does),
> * the dma mask is necessary for the dma_alloc_wc() in
> @@ -924,8 +918,8 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
> mipi->swap_bytes = true;
> } else {
> mipi->command = mipi_dbi_typec1_command;
> - mipi->tx_buf9_len = tx_size;
> - mipi->tx_buf9 = devm_kmalloc(dev, tx_size, GFP_KERNEL);
> + mipi->tx_buf9_len = SZ_16K;
> + mipi->tx_buf9 = devm_kmalloc(dev, mipi->tx_buf9_len, GFP_KERNEL);
> if (!mipi->tx_buf9)
> return -ENOMEM;
> }
> diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
> index 0dcc45f158b8..2fd650891c07 100644
> --- a/drivers/spi/spi-bcm2835.c
> +++ b/drivers/spi/spi-bcm2835.c
> @@ -448,7 +448,7 @@ static void bcm2835_dma_init(struct spi_master *master, struct device *dev)
>
> /* all went well, so set can_dma */
> master->can_dma = bcm2835_spi_can_dma;
> - master->max_dma_len = 65535; /* limitation by BCM2835_SPI_DLEN */
> + master->max_dma_len = 65528; /* limitation by BCM2835_SPI_DLEN */
This change belongs in the spi-bcm2835 patch.
You need to tell us why the change is needed.
Noralf.
> /* need to do TX AND RX DMA, so we need dummy buffers */
> master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX;
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-03-11 13:35 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-10 15:50 [PATCH v2 0/2] Chunk splitting of spi transfers Meghana Madhyastha
2018-03-10 15:51 ` [PATCH v2 1/2] spi: Split spi message into chunks of <65535 in the spi subsystem Meghana Madhyastha
2018-03-10 19:12 ` Geert Uytterhoeven
2018-03-11 13:33 ` Noralf Trønnes
2018-03-10 15:52 ` [PATCH v2 2/2] drm/tinydrm: Remove chunk splitting in tinydrm_spi_transfer Meghana Madhyastha
2018-03-11 13:35 ` Noralf Trønnes
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