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drm/lima: support heap buffer creation

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heap buffer is used as output of GP and input of PP for
Mali Utgard GPU. Size of heap buffer depends on the task
so is a runtime variable.

Previously we just create a large enough buffer as heap
buffer. Now we add a heap buffer type to be able to
increase the backup memory dynamically when GP fail due
to lack of heap memory.

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116131157.13346-4-yuq825@gmail.com
This commit is contained in:
Qiang Yu
2020-01-16 21:11:55 +08:00
parent dc76cb7a1f
commit 6aebc51d7a
6 changed files with 147 additions and 11 deletions
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6
drivers/gpu/drm/lima/lima_drv.c
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@@ -15,10 +15,14 @@
#include "lima_vm.h"
int lima_sched_timeout_ms;
uint lima_heap_init_nr_pages = 8;
MODULE_PARM_DESC(sched_timeout_ms, "task run timeout in ms");
module_param_named(sched_timeout_ms, lima_sched_timeout_ms, int, 0444);
MODULE_PARM_DESC(heap_init_nr_pages, "heap buffer init number of pages");
module_param_named(heap_init_nr_pages, lima_heap_init_nr_pages, uint, 0444);
static int lima_ioctl_get_param(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_get_param *args = data;
@@ -68,7 +72,7 @@ static int lima_ioctl_gem_create(struct drm_device *dev, void *data, struct drm_
if (args->pad)
return -EINVAL;
if (args->flags)
if (args->flags & ~(LIMA_BO_FLAG_HEAP))
return -EINVAL;
if (args->size == 0)