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authorRussell King <rmk+kernel@arm.linux.org.uk>2016-01-21 18:20:35 +0300
committerLucas Stach <l.stach@pengutronix.de>2016-03-07 17:36:58 +0300
commit33b1be99fb4cfd0d7d483a9947f9c95d6d17ede9 (patch)
treece51406e625ae4880e429ef67b2ade2ec8e486db /drivers/gpu/drm/etnaviv/etnaviv_buffer.c
parent90747b9511d14a2eb6c7dbd78ea9251e3b2b092a (diff)
downloadlinux-33b1be99fb4cfd0d7d483a9947f9c95d6d17ede9.tar.xz
drm: etnaviv: clean up GPU command submission
Clean up the GPU command submission path to prepare for the next change. This makes the next change easier to read and understand. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_buffer.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_buffer.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index 22b3bfa75cfa..2a10463a8790 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -224,7 +224,8 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
{
struct etnaviv_cmdbuf *buffer = gpu->buffer;
unsigned int waitlink_offset = buffer->user_size - 16;
- u32 back, link_target, link_size, reserve_size, extra_size = 0;
+ u32 back, reserve_size, extra_size = 0;
+ u32 link_target, link_dwords;
if (drm_debug & DRM_UT_DRIVER)
etnaviv_buffer_dump(gpu, buffer, 0, 0x50);
@@ -251,7 +252,7 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
/* save offset back into main buffer */
back = buffer->user_size + reserve_size - 6 * 4;
- link_size = 6;
+ link_dwords = 6;
/* Skip over any extra instructions */
link_target += extra_size * sizeof(u32);
@@ -261,10 +262,10 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
link_target, gpu_va(gpu, cmdbuf), cmdbuf->vaddr);
/* jump back from cmd to main buffer */
- CMD_LINK(cmdbuf, link_size, link_target);
+ CMD_LINK(cmdbuf, link_dwords, link_target);
link_target = gpu_va(gpu, cmdbuf);
- link_size = cmdbuf->size / 8;
+ link_dwords = cmdbuf->size / 8;
if (drm_debug & DRM_UT_DRIVER) {
print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4,
@@ -297,12 +298,12 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
gpu->switch_context = false;
}
- /* And the link to the first buffer */
- CMD_LINK(buffer, link_size, link_target);
+ /* And the link to the submitted buffer */
+ CMD_LINK(buffer, link_dwords, link_target);
/* Update the link target to point to above instructions */
link_target = new_target;
- link_size = extra_size;
+ link_dwords = extra_size;
}
/* trigger event */
@@ -315,7 +316,7 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
etnaviv_buffer_replace_wait(buffer, waitlink_offset,
VIV_FE_LINK_HEADER_OP_LINK |
- VIV_FE_LINK_HEADER_PREFETCH(link_size),
+ VIV_FE_LINK_HEADER_PREFETCH(link_dwords),
link_target);
if (drm_debug & DRM_UT_DRIVER)