int kgsl_ringbuffer_init(struct kgsl_device *device)
{
int status;
uint32_t flags;
struct kgsl_ringbuffer *rb = &device->ringbuffer;
KGSL_CMD_VDBG("enter (device=%p)\n", device);
rb->device = device;
rb->sizedwords = (2 << kgsl_cfg_rb_sizelog2quadwords);
rb->blksizequadwords = kgsl_cfg_rb_blksizequadwords;
flags =
(KGSL_MEMFLAGS_ALIGNPAGE | KGSL_MEMFLAGS_CONPHYS |
KGSL_MEMFLAGS_STRICTREQUEST);
status = kgsl_sharedmem_alloc(flags, (rb->sizedwords << 2),
&rb->buffer_desc);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
flags = (KGSL_MEMFLAGS_ALIGNPAGE | KGSL_MEMFLAGS_CONPHYS);
status = kgsl_sharedmem_alloc(flags, sizeof(struct kgsl_rbmemptrs),
&rb->memptrs_desc);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
status = kgsl_yamato_setup_pt(device, device->mmu.defaultpagetable);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
rb->memptrs = (struct kgsl_rbmemptrs *) rb->memptrs_desc.hostptr;
rb->flags |= KGSL_FLAGS_INITIALIZED;
status = kgsl_ringbuffer_start(rb);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
KGSL_CMD_VDBG("return %d\n", 0);
return 0;
}
int kgsl_ringbuffer_init(struct kgsl_device *device)
{
int status;
uint32_t flags;
struct kgsl_ringbuffer *rb = &device->ringbuffer;
KGSL_CMD_VDBG("enter (device=%p)\n", device);
rb->device = device;
rb->sizedwords = (2 << kgsl_cfg_rb_sizelog2quadwords);
rb->blksizequadwords = kgsl_cfg_rb_blksizequadwords;
/* allocate memory for ringbuffer, needs to be double octword aligned
* align on page from contiguous physical memory
*/
flags =
(KGSL_MEMFLAGS_ALIGNPAGE | KGSL_MEMFLAGS_CONPHYS |
KGSL_MEMFLAGS_STRICTREQUEST);
status = kgsl_sharedmem_alloc(flags, (rb->sizedwords << 2),
&rb->buffer_desc);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
/* allocate memory for polling and timestamps */
/* This really can be at 4 byte alignment boundry but for using MMU
* we need to make it at page boundary */
flags = (KGSL_MEMFLAGS_ALIGNPAGE | KGSL_MEMFLAGS_CONPHYS);
status = kgsl_sharedmem_alloc(flags, sizeof(struct kgsl_rbmemptrs),
&rb->memptrs_desc);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
/* last allocation of init process is made here so map all
* allocations to MMU */
status = kgsl_yamato_setup_pt(device, device->mmu.defaultpagetable);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
/* overlay structure on memptrs memory */
rb->memptrs = (struct kgsl_rbmemptrs *) rb->memptrs_desc.hostptr;
rb->flags |= KGSL_FLAGS_INITIALIZED;
status = kgsl_ringbuffer_start(rb);
if (status != 0) {
kgsl_ringbuffer_close(rb);
KGSL_CMD_VDBG("return %d\n", status);
return status;
}
KGSL_CMD_VDBG("return %d\n", 0);
return 0;
}