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authorChia-I Wu <[email protected]>2014-10-29 07:49:53 +0800
committerChia-I Wu <[email protected]>2014-11-06 10:26:34 +0800
commit510a1a9012fc0d915033b7f1f18053e1b176ce85 (patch)
tree8ffac133b41c85d30ab68933ccf3bbcc216a05bb /src/gallium/drivers/ilo/ilo_screen.c
parent29253f44d00663c377a6b4f45511123a92abfd6a (diff)
ilo: add eu_count and thread_count to ilo_dev_info
They will be used to report compute params or program compute states. thread_count can also be used for 3DSTATE_VS. Signed-off-by: Chia-I Wu <[email protected]>
Diffstat (limited to 'src/gallium/drivers/ilo/ilo_screen.c')
-rw-r--r--src/gallium/drivers/ilo/ilo_screen.c98
1 files changed, 72 insertions, 26 deletions
diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c
index da6cf7669ad..42e39c91d25 100644
--- a/src/gallium/drivers/ilo/ilo_screen.c
+++ b/src/gallium/drivers/ilo/ilo_screen.c
@@ -682,39 +682,85 @@ init_dev(struct ilo_dev_info *dev, const struct intel_winsys_info *info)
ilo_warn("PPGTT disabled\n");
}
- /*
- * From the Sandy Bridge PRM, volume 4 part 2, page 18:
- *
- * "[DevSNB]: The GT1 product's URB provides 32KB of storage, arranged
- * as 1024 256-bit rows. The GT2 product's URB provides 64KB of
- * storage, arranged as 2048 256-bit rows. A row corresponds in size
- * to an EU GRF register. Read/write access to the URB is generally
- * supported on a row-granular basis."
- *
- * From the Ivy Bridge PRM, volume 4 part 2, page 17:
- *
- * "URB Size URB Rows URB Rows when SLM Enabled
- * 128k 4096 2048
- * 256k 8096 4096"
- */
-
if (gen_is_hsw(info->devid)) {
+ /*
+ * From the Haswell PRM, volume 4, page 8:
+ *
+ * "Description GT3 GT2 GT1.5 GT1
+ * (...)
+ * EUs (Total) 40 20 12 10
+ * Threads (Total) 280 140 84 70
+ * (...)
+ * URB Size (max, within L3$) 512KB 256KB 256KB 128KB
+ */
dev->gen_opaque = ILO_GEN(7.5);
dev->gt = gen_get_hsw_gt(info->devid);
- dev->urb_size = ((dev->gt == 3) ? 512 :
- (dev->gt == 2) ? 256 : 128) * 1024;
- }
- else if (gen_is_ivb(info->devid) || gen_is_vlv(info->devid)) {
+ if (dev->gt == 3) {
+ dev->eu_count = 40;
+ dev->thread_count = 280;
+ dev->urb_size = 512 * 1024;
+ } else if (dev->gt == 2) {
+ dev->eu_count = 20;
+ dev->thread_count = 140;
+ dev->urb_size = 256 * 1024;
+ } else {
+ dev->eu_count = 10;
+ dev->thread_count = 70;
+ dev->urb_size = 128 * 1024;
+ }
+ } else if (gen_is_ivb(info->devid) || gen_is_vlv(info->devid)) {
+ /*
+ * From the Ivy Bridge PRM, volume 1 part 1, page 18:
+ *
+ * "Device # of EUs #Threads/EU
+ * Ivy Bridge (GT2) 16 8
+ * Ivy Bridge (GT1) 6 6"
+ *
+ * From the Ivy Bridge PRM, volume 4 part 2, page 17:
+ *
+ * "URB Size URB Rows URB Rows when SLM Enabled
+ * 128k 4096 2048
+ * 256k 8096 4096"
+ */
dev->gen_opaque = ILO_GEN(7);
dev->gt = (gen_is_ivb(info->devid)) ? gen_get_ivb_gt(info->devid) : 1;
- dev->urb_size = ((dev->gt == 2) ? 256 : 128) * 1024;
- }
- else if (gen_is_snb(info->devid)) {
+ if (dev->gt == 2) {
+ dev->eu_count = 16;
+ dev->thread_count = 128;
+ dev->urb_size = 256 * 1024;
+ } else {
+ dev->eu_count = 6;
+ dev->thread_count = 36;
+ dev->urb_size = 128 * 1024;
+ }
+ } else if (gen_is_snb(info->devid)) {
+ /*
+ * From the Sandy Bridge PRM, volume 1 part 1, page 22:
+ *
+ * "Device # of EUs #Threads/EU
+ * SNB GT2 12 5
+ * SNB GT1 6 4"
+ *
+ * From the Sandy Bridge PRM, volume 4 part 2, page 18:
+ *
+ * "[DevSNB]: The GT1 product's URB provides 32KB of storage,
+ * arranged as 1024 256-bit rows. The GT2 product's URB provides
+ * 64KB of storage, arranged as 2048 256-bit rows. A row
+ * corresponds in size to an EU GRF register. Read/write access to
+ * the URB is generally supported on a row-granular basis."
+ */
dev->gen_opaque = ILO_GEN(6);
dev->gt = gen_get_snb_gt(info->devid);
- dev->urb_size = ((dev->gt == 2) ? 64 : 32) * 1024;
- }
- else {
+ if (dev->gt == 2) {
+ dev->eu_count = 12;
+ dev->thread_count = 60;
+ dev->urb_size = 64 * 1024;
+ } else {
+ dev->eu_count = 6;
+ dev->thread_count = 24;
+ dev->urb_size = 32 * 1024;
+ }
+ } else {
ilo_err("unknown GPU generation\n");
return false;
}