1 files changed, 1 insertions, 166 deletions

diff --git a/overlay/gpu-top.c b/overlay/gpu-top.c
index 61b8f62f..6cec2e94 100644
--- a/overlay/gpu-top.c
+++ b/overlay/gpu-top.c
@@ -33,7 +33,6 @@
 
 #include "igt_perf.h"
 
-#include "igfx.h"
 #include "gpu-top.h"
 
 #define RING_TAIL      0x00
@@ -99,176 +98,12 @@ static int perf_init(struct gpu_top *gt)
 	return 0;
 }
 
-struct mmio_ring {
-	int id;
-	uint32_t base;
-	void *mmio;
-	int idle, wait, sema;
-};
-
-static uint32_t mmio_ring_read(struct mmio_ring *ring, uint32_t reg)
-{
-	return igfx_read(ring->mmio, ring->base + reg);
-}
-
-static int has_execlists(void)
-{
-	int detected = 0;
-	FILE *file;
-
-	file = fopen("/sys/module/i915/parameters/enable_execlists", "r");
-	if (file) {
-		int value;
-		if (fscanf(file, "%d", &value) == 1)
-			detected = value != 0;
-		fclose(file);
-	}
-
-	return detected;
-
-}
-
-static void mmio_ring_init(struct mmio_ring *ring, void *mmio)
-{
-	uint32_t ctl;
-
-	ring->mmio = mmio;
-
-	ctl = mmio_ring_read(ring, RING_CTL);
-	if ((ctl & 1) == 0 && !has_execlists())
-		ring->id = -1;
-}
-
-static void mmio_ring_reset(struct mmio_ring *ring)
-{
-	ring->idle = 0;
-	ring->wait = 0;
-	ring->sema = 0;
-}
-
-static void mmio_ring_sample(struct mmio_ring *ring)
-{
-	uint32_t head, tail, ctl;
-
-	if (ring->id == -1)
-		return;
-
-	head = mmio_ring_read(ring, RING_HEAD) & ADDR_MASK;
-	tail = mmio_ring_read(ring, RING_TAIL) & ADDR_MASK;
-	ring->idle += head == tail;
-
-	ctl = mmio_ring_read(ring, RING_CTL);
-	ring->wait += !!(ctl & RING_WAIT);
-	ring->sema += !!(ctl & RING_WAIT_SEMAPHORE);
-}
-
-static void mmio_ring_emit(struct mmio_ring *ring, int samples, union gpu_top_payload *payload)
-{
-	if (ring->id == -1)
-		return;
-
-	payload[ring->id].u.busy = 100 - 100 * ring->idle / samples;
-	payload[ring->id].u.wait = 100 * ring->wait / samples;
-	payload[ring->id].u.sema = 100 * ring->sema / samples;
-}
-
-static void mmio_init(struct gpu_top *gt)
-{
-	struct mmio_ring render_ring = {
-		.base = 0x2030,
-		.id = 0,
-	}, bsd_ring = {
-		.base = 0x4030,
-		.id = 1,
-	}, bsd6_ring = {
-		.base = 0x12030,
-		.id = 1,
-	}, blt_ring = {
-		.base = 0x22030,
-		.id = 2,
-	};
-	const struct igfx_info *info;
-	struct pci_device *igfx;
-	void *mmio;
-	int fd[2], i;
-
-	igfx = igfx_get();
-	if (!igfx)
-		return;
-
-	if (pipe(fd) < 0)
-		return;
-
-	info = igfx_get_info(igfx);
-
-	switch (fork()) {
-	case -1: return;
-	default:
-		 fcntl(fd[0], F_SETFL, fcntl(fd[0], F_GETFL) | O_NONBLOCK);
-		 gt->fd = fd[0];
-		 gt->type = MMIO;
-		 gt->ring[0].name = "render";
-		 gt->num_rings = 1;
-		 if (info->gen >= 040) {
-			 gt->ring[1].name = "bitstream";
-			 gt->num_rings++;
-		 }
-		 if (info->gen >= 060) {
-			 gt->ring[2].name = "blt";
-			 gt->num_rings++;
-		 }
-		 close(fd[1]);
-		 return;
-	case 0:
-		 close(fd[0]);
-		 break;
-	}
-
-	mmio = igfx_get_mmio(igfx);
-	if (mmio == NULL)
-		exit(127);
-
-	mmio_ring_init(&render_ring, mmio);
-	if (info->gen >= 060) {
-		bsd_ring = bsd6_ring;
-		mmio_ring_init(&blt_ring, mmio);
-	}
-	if (info->gen >= 040) {
-		mmio_ring_init(&bsd_ring, mmio);
-	}
-
-	for (;;) {
-		union gpu_top_payload payload[MAX_RINGS];
-
-		mmio_ring_reset(&render_ring);
-		mmio_ring_reset(&bsd_ring);
-		mmio_ring_reset(&blt_ring);
-
-		for (i = 0; i < 1000; i++) {
-			mmio_ring_sample(&render_ring);
-			mmio_ring_sample(&bsd_ring);
-			mmio_ring_sample(&blt_ring);
-			usleep(1000);
-		}
-
-		memset(payload, 0, sizeof(payload));
-		mmio_ring_emit(&render_ring, 1000, payload);
-		mmio_ring_emit(&bsd_ring, 1000, payload);
-		mmio_ring_emit(&blt_ring, 1000, payload);
-		assert(write(fd[1], payload, sizeof(payload))
-		       == sizeof(payload));
-	}
-}
-
 void gpu_top_init(struct gpu_top *gt)
 {
 	memset(gt, 0, sizeof(*gt));
 	gt->fd = -1;
 
-	if (perf_init(gt) == 0)
-		return;
-
-	mmio_init(gt);
+	perf_init(gt);
 }
 
 int gpu_top_update(struct gpu_top *gt)