[Intel-gfx] [PATCH 2/2] drm/i915/uncore: constify the register vtables.
Dave Airlie
airlied at gmail.com
Thu Sep 9 02:34:20 UTC 2021
From: Dave Airlie <airlied at redhat.com>
This reworks the uncore function vtable so that it's constant.
Reviewed-by: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
drivers/gpu/drm/i915/intel_uncore.c | 133 +++++++++++++++++-----------
drivers/gpu/drm/i915/intel_uncore.h | 8 +-
2 files changed, 83 insertions(+), 58 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8652e4221404..e0e7f133f2b9 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1737,32 +1737,24 @@ __vgpu_write(8)
__vgpu_write(16)
__vgpu_write(32)
-#define ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, x) \
-do { \
- (uncore)->funcs.mmio_writeb = x##_write8; \
- (uncore)->funcs.mmio_writew = x##_write16; \
- (uncore)->funcs.mmio_writel = x##_write32; \
-} while (0)
-
-#define ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, x) \
-do { \
- (uncore)->funcs.mmio_readb = x##_read8; \
- (uncore)->funcs.mmio_readw = x##_read16; \
- (uncore)->funcs.mmio_readl = x##_read32; \
- (uncore)->funcs.mmio_readq = x##_read64; \
-} while (0)
-
-#define ASSIGN_WRITE_MMIO_VFUNCS(uncore, x) \
-do { \
- ASSIGN_RAW_WRITE_MMIO_VFUNCS((uncore), x); \
- (uncore)->funcs.write_fw_domains = x##_reg_write_fw_domains; \
-} while (0)
-
-#define ASSIGN_READ_MMIO_VFUNCS(uncore, x) \
-do { \
- ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, x); \
- (uncore)->funcs.read_fw_domains = x##_reg_read_fw_domains; \
-} while (0)
+#define MMIO_RAW_WRITE_VFUNCS(x) \
+ .mmio_writeb = x##_write8, \
+ .mmio_writew = x##_write16, \
+ .mmio_writel = x##_write32
+
+#define MMIO_RAW_READ_VFUNCS(x) \
+ .mmio_readb = x##_read8, \
+ .mmio_readw = x##_read16, \
+ .mmio_readl = x##_read32, \
+ .mmio_readq = x##_read64
+
+#define MMIO_WRITE_FW_VFUNCS(x) \
+ MMIO_RAW_WRITE_VFUNCS(x), \
+ .write_fw_domains = x##_reg_write_fw_domains
+
+#define MMIO_READ_FW_VFUNCS(x) \
+ MMIO_RAW_READ_VFUNCS(x), \
+ .read_fw_domains = x##_reg_read_fw_domains
static int __fw_domain_init(struct intel_uncore *uncore,
enum forcewake_domain_id domain_id,
@@ -2067,22 +2059,64 @@ void intel_uncore_init_early(struct intel_uncore *uncore,
uncore->debug = &i915->mmio_debug;
}
+static const struct intel_uncore_funcs vgpu_funcs = {
+ MMIO_RAW_WRITE_VFUNCS(vgpu),
+ MMIO_RAW_READ_VFUNCS(vgpu),
+};
+
+static const struct intel_uncore_funcs gen5_funcs = {
+ MMIO_RAW_WRITE_VFUNCS(gen5),
+ MMIO_RAW_READ_VFUNCS(gen5),
+};
+
+static const struct intel_uncore_funcs gen2_funcs = {
+ MMIO_RAW_WRITE_VFUNCS(gen2),
+ MMIO_RAW_READ_VFUNCS(gen2),
+};
+
static void uncore_raw_init(struct intel_uncore *uncore)
{
GEM_BUG_ON(intel_uncore_has_forcewake(uncore));
if (intel_vgpu_active(uncore->i915)) {
- ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, vgpu);
- ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, vgpu);
+ uncore->funcs = &vgpu_funcs;
} else if (GRAPHICS_VER(uncore->i915) == 5) {
- ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, gen5);
- ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, gen5);
+ uncore->funcs = &gen5_funcs;
} else {
- ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, gen2);
- ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, gen2);
+ uncore->funcs = &gen2_funcs;
}
}
+static const struct intel_uncore_funcs gen12_funcs = {
+ MMIO_WRITE_FW_VFUNCS(gen12_fwtable),
+ MMIO_READ_FW_VFUNCS(gen11_fwtable)
+};
+
+static const struct intel_uncore_funcs gen11_funcs = {
+ MMIO_WRITE_FW_VFUNCS(gen11_fwtable),
+ MMIO_READ_FW_VFUNCS(gen11_fwtable)
+};
+
+static const struct intel_uncore_funcs fwtable_funcs = {
+ MMIO_WRITE_FW_VFUNCS(fwtable),
+ MMIO_READ_FW_VFUNCS(fwtable)
+};
+
+static const struct intel_uncore_funcs gen8_funcs = {
+ MMIO_WRITE_FW_VFUNCS(gen8),
+ MMIO_READ_FW_VFUNCS(gen6)
+};
+
+static const struct intel_uncore_funcs vlv_funcs = {
+ MMIO_WRITE_FW_VFUNCS(gen6),
+ MMIO_READ_FW_VFUNCS(fwtable)
+};
+
+static const struct intel_uncore_funcs gen6_funcs = {
+ MMIO_WRITE_FW_VFUNCS(gen6),
+ MMIO_READ_FW_VFUNCS(gen6)
+};
+
static int uncore_forcewake_init(struct intel_uncore *uncore)
{
struct drm_i915_private *i915 = uncore->i915;
@@ -2097,38 +2131,29 @@ static int uncore_forcewake_init(struct intel_uncore *uncore)
if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __dg2_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen12_fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable);
+ uncore->funcs = &gen12_funcs;
} else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __xehp_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen12_fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable);
+ uncore->funcs = &gen12_funcs;
} else if (GRAPHICS_VER(i915) >= 12) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __gen12_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen12_fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable);
+ uncore->funcs = &gen12_funcs;
} else if (GRAPHICS_VER(i915) == 11) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __gen11_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen11_fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable);
+ uncore->funcs = &gen11_funcs;
} else if (IS_GRAPHICS_VER(i915, 9, 10)) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __gen9_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable);
+ uncore->funcs = &fwtable_funcs;
} else if (IS_CHERRYVIEW(i915)) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __chv_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
- ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable);
+ uncore->funcs = &fwtable_funcs;
} else if (GRAPHICS_VER(i915) == 8) {
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen8);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen6);
+ uncore->funcs = &gen8_funcs;
} else if (IS_VALLEYVIEW(i915)) {
ASSIGN_FW_DOMAINS_TABLE(uncore, __vlv_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6);
- ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable);
+ uncore->funcs = &vlv_funcs;
} else if (IS_GRAPHICS_VER(i915, 6, 7)) {
- ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6);
- ASSIGN_READ_MMIO_VFUNCS(uncore, gen6);
+ uncore->funcs = &gen6_funcs;
}
uncore->pmic_bus_access_nb.notifier_call = i915_pmic_bus_access_notifier;
@@ -2171,8 +2196,8 @@ int intel_uncore_init_mmio(struct intel_uncore *uncore)
/* make sure fw funcs are set if and only if we have fw*/
GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->fw_get_funcs);
- GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs.read_fw_domains);
- GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs.write_fw_domains);
+ GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs->read_fw_domains);
+ GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs->write_fw_domains);
if (HAS_FPGA_DBG_UNCLAIMED(i915))
uncore->flags |= UNCORE_HAS_FPGA_DBG_UNCLAIMED;
@@ -2511,10 +2536,10 @@ intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
return 0;
if (op & FW_REG_READ)
- fw_domains = uncore->funcs.read_fw_domains(uncore, reg);
+ fw_domains = uncore->funcs->read_fw_domains(uncore, reg);
if (op & FW_REG_WRITE)
- fw_domains |= uncore->funcs.write_fw_domains(uncore, reg);
+ fw_domains |= uncore->funcs->write_fw_domains(uncore, reg);
drm_WARN_ON(&uncore->i915->drm, fw_domains & ~uncore->fw_domains);
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 1950380c0d79..92b4279119d2 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -144,7 +144,7 @@ struct intel_uncore {
struct notifier_block pmic_bus_access_nb;
const struct intel_uncore_fw_get *fw_get_funcs;
- struct intel_uncore_funcs funcs;
+ const struct intel_uncore_funcs *funcs;
unsigned int fifo_count;
@@ -318,14 +318,14 @@ __raw_write(64, q)
static inline u##x__ intel_uncore_##name__(struct intel_uncore *uncore, \
i915_reg_t reg) \
{ \
- return uncore->funcs.mmio_read##s__(uncore, reg, (trace__)); \
+ return uncore->funcs->mmio_read##s__(uncore, reg, (trace__)); \
}
#define __uncore_write(name__, x__, s__, trace__) \
static inline void intel_uncore_##name__(struct intel_uncore *uncore, \
i915_reg_t reg, u##x__ val) \
{ \
- uncore->funcs.mmio_write##s__(uncore, reg, val, (trace__)); \
+ uncore->funcs->mmio_write##s__(uncore, reg, val, (trace__)); \
}
__uncore_read(read8, 8, b, true)
@@ -344,7 +344,7 @@ __uncore_write(write_notrace, 32, l, false)
* an arbitrary delay between them. This can cause the hardware to
* act upon the intermediate value, possibly leading to corruption and
* machine death. For this reason we do not support intel_uncore_write64,
- * or uncore->funcs.mmio_writeq.
+ * or uncore->funcs->mmio_writeq.
*
* When reading a 64-bit value as two 32-bit values, the delay may cause
* the two reads to mismatch, e.g. a timestamp overflowing. Also note that
--
2.31.1
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