diff mbox series

[v2,3/4] drm/i915/mtl: Update OA mux whitelist for MTL

Message ID 20221201005908.1097616-4-umesh.nerlige.ramappa@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/mtl: Add OAG 32 bit format support for MTL | expand

Commit Message

Umesh Nerlige Ramappa Dec. 1, 2022, 12:59 a.m. UTC 
0x20cc (WAIT_FOR_RC6_EXIT on other platforms) is repurposed on MTL. Use
a separate mux table to verify oa configs passed by user.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
---
 drivers/gpu/drm/i915/i915_perf.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 8ed9af571de9..8369ae4b850d 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -4318,6 +4318,17 @@  static const struct i915_range gen12_oa_mux_regs[] = {
 	{}
 };
 
+/*
+ * Ref: 14010536224:
+ * 0x20cc is repurposed on MTL, so use a separate array for MTL.
+ */
+static const struct i915_range mtl_oa_mux_regs[] = {
+	{ .start = 0x0d00, .end = 0x0d04 },	/* RPM_CONFIG[0-1] */
+	{ .start = 0x0d0c, .end = 0x0d2c },	/* NOA_CONFIG[0-8] */
+	{ .start = 0x9840, .end = 0x9840 },	/* GDT_CHICKEN_BITS */
+	{ .start = 0x9884, .end = 0x9888 },	/* NOA_WRITE */
+};
+
 static bool gen7_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
 	return reg_in_range_table(addr, gen7_oa_b_counters);
@@ -4361,7 +4372,10 @@  static bool xehp_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 
 static bool gen12_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen12_oa_mux_regs);
+	if (IS_METEORLAKE(perf->i915))
+		return reg_in_range_table(addr, mtl_oa_mux_regs);
+	else
+		return reg_in_range_table(addr, gen12_oa_mux_regs);
 }
 
 static u32 mask_reg_value(u32 reg, u32 val)