From a91b158bd9e1b6bc08f1d5ac350cd8b68e372042 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 24 Aug 2018 15:45:37 -0700 Subject: [PATCH] v3d: Fix setup of the VCM cache size. There were two bugs working together to make things mostly work: I wasn't dividing the VPM output size available by the size of a batch (vertex), but I also had the size of the VPM reduced by a factor of 8. Fixes dEQP-GLES3.functional.vertex_array_objects.all_attributes and it seems also my intermittent varying failures. Fixes: 1561e4984eb0 ("v3d: Emit the VCM_CACHE_SIZE packet.") --- src/broadcom/compiler/vir.c | 3 ++- src/gallium/drivers/v3d/v3d_screen.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c index 1c82231..6b55b0e 100644 --- a/src/broadcom/compiler/vir.c +++ b/src/broadcom/compiler/vir.c @@ -774,7 +774,8 @@ uint64_t *v3d_compile_vs(const struct v3d_compiler *compiler, int sector_size = 16 * sizeof(uint32_t) * 8; int vpm_size_in_sectors = c->devinfo->vpm_size / sector_size; int half_vpm = vpm_size_in_sectors / 2; - int vpm_output_batches = half_vpm - prog_data->vpm_input_size; + int vpm_output_sectors = half_vpm - prog_data->vpm_input_size; + int vpm_output_batches = vpm_output_sectors / prog_data->vpm_output_size; assert(vpm_output_batches >= 2); prog_data->vcm_cache_size = CLAMP(vpm_output_batches - 1, 2, 4); diff --git a/src/gallium/drivers/v3d/v3d_screen.c b/src/gallium/drivers/v3d/v3d_screen.c index 252ebb3..efde220 100644 --- a/src/gallium/drivers/v3d/v3d_screen.c +++ b/src/gallium/drivers/v3d/v3d_screen.c @@ -438,7 +438,7 @@ v3d_get_device_info(struct v3d_screen *screen) uint32_t minor = (ident1.value >> 0) & 0xf; screen->devinfo.ver = major * 10 + minor; - screen->devinfo.vpm_size = (ident1.value >> 28 & 0xf) * 1024; + screen->devinfo.vpm_size = (ident1.value >> 28 & 0xf) * 8192; switch (screen->devinfo.ver) { case 33: -- 2.7.4