PCI bar resize only works with 64 bit BAR so disable
this on 32-bit machine and resolve below compilation error:
drivers/gpu/drm/i915/gt/intel_region_lmem.c:94:23: error: result of
comparison of constant 4294967296 with expression of type
'resource_size_t' (aka 'unsigned int') is always false
[-Werror,-Wtautological-constant-out-of-range-compare]
root_res->start > 0x100000000ull)
Fixes: a91d1a17cd341 ("drm/i915: Add support for LMEM PCIe resizable bar")
Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Tested-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Acked-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_region_lmem.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index 6e90032e12e9..aa6aed837194 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -15,6 +15,7 @@
#include "gt/intel_gt_mcr.h"
#include "gt/intel_gt_regs.h"
+#ifdef CONFIG_64BIT
static void _release_bars(struct pci_dev *pdev)
{
int resno;
@@ -111,6 +112,9 @@ static void i915_resize_lmem_bar(struct drm_i915_private *i915, resource_size_t
pci_assign_unassigned_bus_resources(pdev->bus);
pci_write_config_dword(pdev, PCI_COMMAND, pci_cmd);
}
+#else
+static void i915_resize_lmem_bar(struct drm_i915_private *i915, resource_size_t lmem_size) {}
+#endif
static int
region_lmem_release(struct intel_memory_region *mem)
--
2.35.1
