Re: [PATCH v7 3/3] drm/i915: Implement I915_PERF_ADD/REMOVE_CONFIG interface

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Hi Andrzej,

Thanks for the feedback. Can you tell me if that following changes are correct?

Cheers,

-
Lionel

On 25/07/17 10:06, Datczuk, Andrzej wrote:
Hi Lionel,

What about the corrected whitelist I sent you before? Without allowing those registers the patch for MDAPI is basically useless.
FYI The whitelist from the patches I sent you contained merged ranges for gen7-9 platforms.

Regards,
Andrzej

+static bool gen8_is_valid_flex_addr(struct drm_i915_private *dev_priv,
+u32 addr) {
+	static const i915_reg_t flex_eu_regs[] = {
+		EU_PERF_CNTL0,
+		EU_PERF_CNTL1,
+		EU_PERF_CNTL2,
+		EU_PERF_CNTL3,
+		EU_PERF_CNTL4,
+		EU_PERF_CNTL5,
+		EU_PERF_CNTL6,
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(flex_eu_regs); i++) {
+		if (flex_eu_regs[i].reg == addr)
+			return true;
+	}
+	return false;
+}
+
+static bool gen7_is_valid_b_counter_addr(struct drm_i915_private
+*dev_priv, u32 addr) {
+	return (addr >= 0x2380 && addr <= 0x27ac); }

Here I dropped 0x2b20 because it's an interruption register. It probably should be left to its default value and only managed by the kernel.

Though I made a mistake as this should be addr >= 0x2374 && addr <= 0x27ac.

+
+static bool gen7_is_valid_mux_addr(struct drm_i915_private *dev_priv,
+u32 addr) {
+	return addr == NOA_WRITE.reg ||
+		(addr >= 0xd0c && addr <= 0xd3c) ||

Arg, missing 0xd24/0xd28 here...

+		(addr >= 0x25100 && addr <= 0x2FB9C); }
+
+static bool hsw_is_valid_mux_addr(struct drm_i915_private *dev_priv,
+u32 addr) {
+	return (addr >= 0x25100 && addr <= 0x2FF90) ||
+		gen7_is_valid_mux_addr(dev_priv, addr); }
+
+static bool chv_is_valid_mux_addr(struct drm_i915_private *dev_priv,
+u32 addr) {
+	return (addr >= 0x182300 && addr <= 0x1823A4) ||
+		gen7_is_valid_mux_addr(dev_priv, addr); }
+
+

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